Re: [3.11.y.z extended stable] Linux 3.11.10.13

From: Luis Henriques
Date: Tue Jul 08 2014 - 11:33:48 EST

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diff --git a/Documentation/ABI/testing/ima_policy b/Documentation/ABI/testing/ima_policy
index f1c5cc9d17a8..4c3efe434806 100644
--- a/Documentation/ABI/testing/ima_policy
+++ b/Documentation/ABI/testing/ima_policy
@@ -23,7 +23,7 @@ Description:
[fowner]]
lsm: [[subj_user=] [subj_role=] [subj_type=]
[obj_user=] [obj_role=] [obj_type=]]
- option: [[appraise_type=]]
+ option: [[appraise_type=]] [permit_directio]

base: func:= [BPRM_CHECK][MMAP_CHECK][FILE_CHECK][MODULE_CHECK]
mask:= [MAY_READ] [MAY_WRITE] [MAY_APPEND] [MAY_EXEC]
diff --git a/Documentation/vm/hwpoison.txt b/Documentation/vm/hwpoison.txt
index 550068466605..6ae89a9edf2a 100644
--- a/Documentation/vm/hwpoison.txt
+++ b/Documentation/vm/hwpoison.txt
@@ -84,6 +84,11 @@ PR_MCE_KILL
PR_MCE_KILL_EARLY: Early kill
PR_MCE_KILL_LATE: Late kill
PR_MCE_KILL_DEFAULT: Use system global default
+ Note that if you want to have a dedicated thread which handles
+ the SIGBUS(BUS_MCEERR_AO) on behalf of the process, you should
+ call prctl(PR_MCE_KILL_EARLY) on the designated thread. Otherwise,
+ the SIGBUS is sent to the main thread.
+
PR_MCE_KILL_GET
return current mode

diff --git a/Makefile b/Makefile
index 06c6299c47bd..355d48131ece 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
VERSION = 3
PATCHLEVEL = 11
SUBLEVEL = 10
-EXTRAVERSION = .12
+EXTRAVERSION = .13
NAME = Linux for Workgroups

# *DOCUMENTATION*
diff --git a/arch/arm/kernel/stacktrace.c b/arch/arm/kernel/stacktrace.c
index af4e8c8a5422..6582c4adc182 100644
--- a/arch/arm/kernel/stacktrace.c
+++ b/arch/arm/kernel/stacktrace.c
@@ -83,13 +83,16 @@ static int save_trace(struct stackframe *frame, void *d)
return trace->nr_entries >= trace->max_entries;
}

-void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace)
+/* This must be noinline to so that our skip calculation works correctly */
+static noinline void __save_stack_trace(struct task_struct *tsk,
+ struct stack_trace *trace, unsigned int nosched)
{
struct stack_trace_data data;
struct stackframe frame;

data.trace = trace;
data.skip = trace->skip;
+ data.no_sched_functions = nosched;

if (tsk != current) {
#ifdef CONFIG_SMP
@@ -102,7 +105,6 @@ void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace)
trace->entries[trace->nr_entries++] = ULONG_MAX;
return;
#else
- data.no_sched_functions = 1;
frame.fp = thread_saved_fp(tsk);
frame.sp = thread_saved_sp(tsk);
frame.lr = 0; /* recovered from the stack */
@@ -111,11 +113,12 @@ void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace)
} else {
register unsigned long current_sp asm ("sp");

- data.no_sched_functions = 0;
+ /* We don't want this function nor the caller */
+ data.skip += 2;
frame.fp = (unsigned long)__builtin_frame_address(0);
frame.sp = current_sp;
frame.lr = (unsigned long)__builtin_return_address(0);
- frame.pc = (unsigned long)save_stack_trace_tsk;
+ frame.pc = (unsigned long)__save_stack_trace;
}

walk_stackframe(&frame, save_trace, &data);
@@ -123,9 +126,14 @@ void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace)
trace->entries[trace->nr_entries++] = ULONG_MAX;
}

+void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace)
+{
+ __save_stack_trace(tsk, trace, 1);
+}
+
void save_stack_trace(struct stack_trace *trace)
{
- save_stack_trace_tsk(current, trace);
+ __save_stack_trace(current, trace, 0);
}
EXPORT_SYMBOL_GPL(save_stack_trace);
#endif
diff --git a/arch/arm/mach-at91/sysirq_mask.c b/arch/arm/mach-at91/sysirq_mask.c
index 2ba694f9626b..f8bc3511a8c8 100644
--- a/arch/arm/mach-at91/sysirq_mask.c
+++ b/arch/arm/mach-at91/sysirq_mask.c
@@ -25,24 +25,28 @@

#include "generic.h"

-#define AT91_RTC_IDR 0x24 /* Interrupt Disable Register */
-#define AT91_RTC_IMR 0x28 /* Interrupt Mask Register */
+#define AT91_RTC_IDR 0x24 /* Interrupt Disable Register */
+#define AT91_RTC_IMR 0x28 /* Interrupt Mask Register */
+#define AT91_RTC_IRQ_MASK 0x1f /* Available IRQs mask */

void __init at91_sysirq_mask_rtc(u32 rtc_base)
{
void __iomem *base;
- u32 mask;

base = ioremap(rtc_base, 64);
if (!base)
return;

- mask = readl_relaxed(base + AT91_RTC_IMR);
- if (mask) {
- pr_info("AT91: Disabling rtc irq\n");
- writel_relaxed(mask, base + AT91_RTC_IDR);
- (void)readl_relaxed(base + AT91_RTC_IMR); /* flush */
- }
+ /*
+ * sam9x5 SoCs have the following errata:
+ * "RTC: Interrupt Mask Register cannot be used
+ * Interrupt Mask Register read always returns 0."
+ *
+ * Hence we're not relying on IMR values to disable
+ * interrupts.
+ */
+ writel_relaxed(AT91_RTC_IRQ_MASK, base + AT91_RTC_IDR);
+ (void)readl_relaxed(base + AT91_RTC_IMR); /* flush */

iounmap(base);
}
diff --git a/arch/arm/mach-omap1/board-h2.c b/arch/arm/mach-omap1/board-h2.c
index fd90cafc2e36..db57072aeed3 100644
--- a/arch/arm/mach-omap1/board-h2.c
+++ b/arch/arm/mach-omap1/board-h2.c
@@ -343,7 +343,7 @@ static struct omap_usb_config h2_usb_config __initdata = {
/* usb1 has a Mini-AB port and external isp1301 transceiver */
.otg = 2,

-#ifdef CONFIG_USB_GADGET_OMAP
+#if IS_ENABLED(CONFIG_USB_OMAP)
.hmc_mode = 19, /* 0:host(off) 1:dev|otg 2:disabled */
/* .hmc_mode = 21,*/ /* 0:host(off) 1:dev(loopback) 2:host(loopback) */
#elif defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
diff --git a/arch/arm/mach-omap1/board-h3.c b/arch/arm/mach-omap1/board-h3.c
index 816ecd13f81e..bfed4f928663 100644
--- a/arch/arm/mach-omap1/board-h3.c
+++ b/arch/arm/mach-omap1/board-h3.c
@@ -366,7 +366,7 @@ static struct omap_usb_config h3_usb_config __initdata = {
/* usb1 has a Mini-AB port and external isp1301 transceiver */
.otg = 2,

-#ifdef CONFIG_USB_GADGET_OMAP
+#if IS_ENABLED(CONFIG_USB_OMAP)
.hmc_mode = 19, /* 0:host(off) 1:dev|otg 2:disabled */
#elif defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
/* NONSTANDARD CABLE NEEDED (B-to-Mini-B) */
diff --git a/arch/arm/mach-omap1/board-innovator.c b/arch/arm/mach-omap1/board-innovator.c
index bd5f02e9c354..c49ce83cc1eb 100644
--- a/arch/arm/mach-omap1/board-innovator.c
+++ b/arch/arm/mach-omap1/board-innovator.c
@@ -312,7 +312,7 @@ static struct omap_usb_config h2_usb_config __initdata = {
/* usb1 has a Mini-AB port and external isp1301 transceiver */
.otg = 2,

-#ifdef CONFIG_USB_GADGET_OMAP
+#if IS_ENABLED(CONFIG_USB_OMAP)
.hmc_mode = 19, /* 0:host(off) 1:dev|otg 2:disabled */
/* .hmc_mode = 21,*/ /* 0:host(off) 1:dev(loopback) 2:host(loopback) */
#elif defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
diff --git a/arch/arm/mach-omap1/board-osk.c b/arch/arm/mach-omap1/board-osk.c
index a7ce69286688..006fbb5f9654 100644
--- a/arch/arm/mach-omap1/board-osk.c
+++ b/arch/arm/mach-omap1/board-osk.c
@@ -280,7 +280,7 @@ static struct omap_usb_config osk_usb_config __initdata = {
* be used, with a NONSTANDARD gender-bending cable/dongle, as
* a peripheral.
*/
-#ifdef CONFIG_USB_GADGET_OMAP
+#if IS_ENABLED(CONFIG_USB_OMAP)
.register_dev = 1,
.hmc_mode = 0,
#else
diff --git a/arch/arm/mm/proc-v7-3level.S b/arch/arm/mm/proc-v7-3level.S
index 01a719e18bb0..22e3ad63500c 100644
--- a/arch/arm/mm/proc-v7-3level.S
+++ b/arch/arm/mm/proc-v7-3level.S
@@ -64,6 +64,14 @@ ENTRY(cpu_v7_switch_mm)
mov pc, lr
ENDPROC(cpu_v7_switch_mm)

+#ifdef __ARMEB__
+#define rl r3
+#define rh r2
+#else
+#define rl r2
+#define rh r3
+#endif
+
/*
* cpu_v7_set_pte_ext(ptep, pte)
*
@@ -73,13 +81,13 @@ ENDPROC(cpu_v7_switch_mm)
*/
ENTRY(cpu_v7_set_pte_ext)
#ifdef CONFIG_MMU
- tst r2, #L_PTE_VALID
+ tst rl, #L_PTE_VALID
beq 1f
- tst r3, #1 << (57 - 32) @ L_PTE_NONE
- bicne r2, #L_PTE_VALID
+ tst rh, #1 << (57 - 32) @ L_PTE_NONE
+ bicne rl, #L_PTE_VALID
bne 1f
- tst r3, #1 << (55 - 32) @ L_PTE_DIRTY
- orreq r2, #L_PTE_RDONLY
+ tst rh, #1 << (55 - 32) @ L_PTE_DIRTY
+ orreq rl, #L_PTE_RDONLY
1: strd r2, r3, [r0]
ALT_SMP(W(nop))
ALT_UP (mcr p15, 0, r0, c7, c10, 1) @ flush_pte
diff --git a/arch/arm64/include/asm/dma-mapping.h b/arch/arm64/include/asm/dma-mapping.h
index 8d1810001aef..e8d35b562e3a 100644
--- a/arch/arm64/include/asm/dma-mapping.h
+++ b/arch/arm64/include/asm/dma-mapping.h
@@ -23,8 +23,6 @@

#include <asm-generic/dma-coherent.h>

-#define ARCH_HAS_DMA_GET_REQUIRED_MASK
-
extern struct dma_map_ops *dma_ops;

static inline struct dma_map_ops *get_dma_ops(struct device *dev)
diff --git a/arch/arm64/kernel/ptrace.c b/arch/arm64/kernel/ptrace.c
index c484d5625ffb..9fa78cd0f092 100644
--- a/arch/arm64/kernel/ptrace.c
+++ b/arch/arm64/kernel/ptrace.c
@@ -823,6 +823,7 @@ static int compat_ptrace_write_user(struct task_struct *tsk, compat_ulong_t off,
compat_ulong_t val)
{
int ret;
+ mm_segment_t old_fs = get_fs();

if (off & 3 || off >= COMPAT_USER_SZ)
return -EIO;
@@ -830,10 +831,13 @@ static int compat_ptrace_write_user(struct task_struct *tsk, compat_ulong_t off,
if (off >= sizeof(compat_elf_gregset_t))
return 0;

+ set_fs(KERNEL_DS);
ret = copy_regset_from_user(tsk, &user_aarch32_view,
REGSET_COMPAT_GPR, off,
sizeof(compat_ulong_t),
&val);
+ set_fs(old_fs);
+
return ret;
}

diff --git a/arch/ia64/hp/common/sba_iommu.c b/arch/ia64/hp/common/sba_iommu.c
index d43daf192b21..c4ba77c44772 100644
--- a/arch/ia64/hp/common/sba_iommu.c
+++ b/arch/ia64/hp/common/sba_iommu.c
@@ -242,7 +242,7 @@ struct ioc {
struct pci_dev *sac_only_dev;
};

-static struct ioc *ioc_list;
+static struct ioc *ioc_list, *ioc_found;
static int reserve_sba_gart = 1;

static SBA_INLINE void sba_mark_invalid(struct ioc *, dma_addr_t, size_t);
@@ -1596,7 +1596,7 @@ static void sba_unmap_sg_attrs(struct device *dev, struct scatterlist *sglist,
*
***************************************************************/

-static void __init
+static void
ioc_iova_init(struct ioc *ioc)
{
int tcnfg;
@@ -1807,20 +1807,13 @@ static struct ioc_iommu ioc_iommu_info[] __initdata = {
{ SX2000_IOC_ID, "sx2000", NULL },
};

-static struct ioc * __init
-ioc_init(unsigned long hpa, void *handle)
+static void ioc_init(unsigned long hpa, struct ioc *ioc)
{
- struct ioc *ioc;
struct ioc_iommu *info;

- ioc = kzalloc(sizeof(*ioc), GFP_KERNEL);
- if (!ioc)
- return NULL;
-
ioc->next = ioc_list;
ioc_list = ioc;

- ioc->handle = handle;
ioc->ioc_hpa = ioremap(hpa, 0x1000);

ioc->func_id = READ_REG(ioc->ioc_hpa + IOC_FUNC_ID);
@@ -1861,8 +1854,6 @@ ioc_init(unsigned long hpa, void *handle)
"%s %d.%d HPA 0x%lx IOVA space %dMb at 0x%lx\n",
ioc->name, (ioc->rev >> 4) & 0xF, ioc->rev & 0xF,
hpa, ioc->iov_size >> 20, ioc->ibase);
-
- return ioc;
}

@@ -2041,22 +2032,21 @@ sba_map_ioc_to_node(struct ioc *ioc, acpi_handle handle)
#define sba_map_ioc_to_node(ioc, handle)
#endif

-static int __init
-acpi_sba_ioc_add(struct acpi_device *device,
- const struct acpi_device_id *not_used)
+static void acpi_sba_ioc_add(struct ioc *ioc)
{
- struct ioc *ioc;
+ acpi_handle handle = ioc->handle;
acpi_status status;
u64 hpa, length;
struct acpi_device_info *adi;

- status = hp_acpi_csr_space(device->handle, &hpa, &length);
+ ioc_found = ioc->next;
+ status = hp_acpi_csr_space(handle, &hpa, &length);
if (ACPI_FAILURE(status))
- return 1;
+ goto err;

- status = acpi_get_object_info(device->handle, &adi);
+ status = acpi_get_object_info(handle, &adi);
if (ACPI_FAILURE(status))
- return 1;
+ goto err;

/*
* For HWP0001, only SBA appears in ACPI namespace. It encloses the PCI
@@ -2077,13 +2067,13 @@ acpi_sba_ioc_add(struct acpi_device *device,
if (!iovp_shift)
iovp_shift = 12;

- ioc = ioc_init(hpa, device->handle);
- if (!ioc)
- return 1;
-
+ ioc_init(hpa, ioc);
/* setup NUMA node association */
- sba_map_ioc_to_node(ioc, device->handle);
- return 0;
+ sba_map_ioc_to_node(ioc, handle);
+ return;
+
+ err:
+ kfree(ioc);
}

static const struct acpi_device_id hp_ioc_iommu_device_ids[] = {
@@ -2091,9 +2081,26 @@ static const struct acpi_device_id hp_ioc_iommu_device_ids[] = {
{"HWP0004", 0},
{"", 0},
};
+
+static int acpi_sba_ioc_attach(struct acpi_device *device,
+ const struct acpi_device_id *not_used)
+{
+ struct ioc *ioc;
+
+ ioc = kzalloc(sizeof(*ioc), GFP_KERNEL);
+ if (!ioc)
+ return -ENOMEM;
+
+ ioc->next = ioc_found;
+ ioc_found = ioc;
+ ioc->handle = device->handle;
+ return 1;
+}
+
+
static struct acpi_scan_handler acpi_sba_ioc_handler = {
.ids = hp_ioc_iommu_device_ids,
- .attach = acpi_sba_ioc_add,
+ .attach = acpi_sba_ioc_attach,
};

static int __init acpi_sba_ioc_init_acpi(void)
@@ -2128,9 +2135,12 @@ sba_init(void)
#endif

/*
- * ioc_list should be populated by the acpi_sba_ioc_handler's .attach()
+ * ioc_found should be populated by the acpi_sba_ioc_handler's .attach()
* routine, but that only happens if acpi_scan_init() has already run.
*/
+ while (ioc_found)
+ acpi_sba_ioc_add(ioc_found);
+
if (!ioc_list) {
#ifdef CONFIG_IA64_GENERIC
/*
diff --git a/arch/mips/kvm/kvm_mips.c b/arch/mips/kvm/kvm_mips.c
index dd203e59e6fd..426345ac6f6e 100644
--- a/arch/mips/kvm/kvm_mips.c
+++ b/arch/mips/kvm/kvm_mips.c
@@ -299,7 +299,7 @@ struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, unsigned int id)
if (cpu_has_veic || cpu_has_vint) {
size = 0x200 + VECTORSPACING * 64;
} else {
- size = 0x200;
+ size = 0x4000;
}

/* Save Linux EBASE */
diff --git a/arch/powerpc/include/asm/switch_to.h b/arch/powerpc/include/asm/switch_to.h
index 294c2cedcf7a..64ff06b14630 100644
--- a/arch/powerpc/include/asm/switch_to.h
+++ b/arch/powerpc/include/asm/switch_to.h
@@ -16,13 +16,15 @@ struct thread_struct;
extern struct task_struct *_switch(struct thread_struct *prev,
struct thread_struct *next);
#ifdef CONFIG_PPC_BOOK3S_64
-static inline void save_tar(struct thread_struct *prev)
+static inline void save_early_sprs(struct thread_struct *prev)
{
if (cpu_has_feature(CPU_FTR_ARCH_207S))
prev->tar = mfspr(SPRN_TAR);
+ if (cpu_has_feature(CPU_FTR_DSCR))
+ prev->dscr = mfspr(SPRN_DSCR);
}
#else
-static inline void save_tar(struct thread_struct *prev) {}
+static inline void save_early_sprs(struct thread_struct *prev) {}
#endif

extern void giveup_fpu(struct task_struct *);
@@ -80,6 +82,8 @@ static inline void clear_task_ebb(struct task_struct *t)
{
#ifdef CONFIG_PPC_BOOK3S_64
/* EBB perf events are not inherited, so clear all EBB state. */
+ t->thread.ebbrr = 0;
+ t->thread.ebbhr = 0;
t->thread.bescr = 0;
t->thread.mmcr2 = 0;
t->thread.mmcr0 = 0;
diff --git a/arch/powerpc/include/asm/systbl.h b/arch/powerpc/include/asm/systbl.h
index 43523fe0d8b4..05fcdd826829 100644
--- a/arch/powerpc/include/asm/systbl.h
+++ b/arch/powerpc/include/asm/systbl.h
@@ -190,7 +190,7 @@ SYSCALL_SPU(getcwd)
SYSCALL_SPU(capget)
SYSCALL_SPU(capset)
COMPAT_SYS(sigaltstack)
-COMPAT_SYS_SPU(sendfile)
+SYSX_SPU(sys_sendfile64,compat_sys_sendfile,sys_sendfile)
SYSCALL(ni_syscall)
SYSCALL(ni_syscall)
PPC_SYS(vfork)
diff --git a/arch/powerpc/include/uapi/asm/cputable.h b/arch/powerpc/include/uapi/asm/cputable.h
index 5b7657959faa..de2c0e4ee1aa 100644
--- a/arch/powerpc/include/uapi/asm/cputable.h
+++ b/arch/powerpc/include/uapi/asm/cputable.h
@@ -41,5 +41,6 @@
#define PPC_FEATURE2_EBB 0x10000000
#define PPC_FEATURE2_ISEL 0x08000000
#define PPC_FEATURE2_TAR 0x04000000
+#define PPC_FEATURE2_VEC_CRYPTO 0x02000000

#endif /* _UAPI__ASM_POWERPC_CPUTABLE_H */
diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c
index 22973a74df73..1c07f0eae495 100644
--- a/arch/powerpc/kernel/cputable.c
+++ b/arch/powerpc/kernel/cputable.c
@@ -105,7 +105,8 @@ extern void __restore_cpu_e6500(void);
PPC_FEATURE_PSERIES_PERFMON_COMPAT)
#define COMMON_USER2_POWER8 (PPC_FEATURE2_ARCH_2_07 | \
PPC_FEATURE2_HTM_COMP | PPC_FEATURE2_DSCR | \
- PPC_FEATURE2_ISEL | PPC_FEATURE2_TAR)
+ PPC_FEATURE2_ISEL | PPC_FEATURE2_TAR | \
+ PPC_FEATURE2_VEC_CRYPTO)
#define COMMON_USER_PA6T (COMMON_USER_PPC64 | PPC_FEATURE_PA6T |\
PPC_FEATURE_TRUE_LE | \
PPC_FEATURE_HAS_ALTIVEC_COMP)
diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S
index 2bd0b885b0fe..062178a9d158 100644
--- a/arch/powerpc/kernel/entry_64.S
+++ b/arch/powerpc/kernel/entry_64.S
@@ -431,12 +431,6 @@ BEGIN_FTR_SECTION
std r24,THREAD_VRSAVE(r3)
END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
#endif /* CONFIG_ALTIVEC */
-#ifdef CONFIG_PPC64
-BEGIN_FTR_SECTION
- mfspr r25,SPRN_DSCR
- std r25,THREAD_DSCR(r3)
-END_FTR_SECTION_IFSET(CPU_FTR_DSCR)
-#endif
and. r0,r0,r22
beq+ 1f
andc r22,r22,r0
diff --git a/arch/powerpc/kernel/legacy_serial.c b/arch/powerpc/kernel/legacy_serial.c
index 0733b05eb856..bfcdb468d207 100644
--- a/arch/powerpc/kernel/legacy_serial.c
+++ b/arch/powerpc/kernel/legacy_serial.c
@@ -48,6 +48,9 @@ static struct __initdata of_device_id legacy_serial_parents[] = {
static unsigned int legacy_serial_count;
static int legacy_serial_console = -1;

+static const upf_t legacy_port_flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
+ UPF_SHARE_IRQ | UPF_FIXED_PORT;
+
static unsigned int tsi_serial_in(struct uart_port *p, int offset)
{
unsigned int tmp;
@@ -153,8 +156,6 @@ static int __init add_legacy_soc_port(struct device_node *np,
{
u64 addr;
const u32 *addrp;
- upf_t flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_SHARE_IRQ
- | UPF_FIXED_PORT;
struct device_node *tsi = of_get_parent(np);

/* We only support ports that have a clock frequency properly
@@ -185,9 +186,11 @@ static int __init add_legacy_soc_port(struct device_node *np,
* IO port value. It will be fixed up later along with the irq
*/
if (tsi && !strcmp(tsi->type, "tsi-bridge"))
- return add_legacy_port(np, -1, UPIO_TSI, addr, addr, NO_IRQ, flags, 0);
+ return add_legacy_port(np, -1, UPIO_TSI, addr, addr,
+ NO_IRQ, legacy_port_flags, 0);
else
- return add_legacy_port(np, -1, UPIO_MEM, addr, addr, NO_IRQ, flags, 0);
+ return add_legacy_port(np, -1, UPIO_MEM, addr, addr,
+ NO_IRQ, legacy_port_flags, 0);
}

static int __init add_legacy_isa_port(struct device_node *np,
@@ -227,8 +230,8 @@ static int __init add_legacy_isa_port(struct device_node *np,
taddr = 0;

/* Add port, irq will be dealt with later */
- return add_legacy_port(np, index, UPIO_PORT, be32_to_cpu(reg[1]), taddr,
- NO_IRQ, UPF_BOOT_AUTOCONF, 0);
+ return add_legacy_port(np, index, UPIO_PORT, be32_to_cpu(reg[1]),
+ taddr, NO_IRQ, legacy_port_flags, 0);

}

@@ -301,7 +304,7 @@ static int __init add_legacy_pci_port(struct device_node *np,
* IO port value. It will be fixed up later along with the irq
*/
return add_legacy_port(np, index, iotype, base, addr, NO_IRQ,
- UPF_BOOT_AUTOCONF, np != pci_dev);
+ legacy_port_flags, np != pci_dev);
}
#endif

diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index db9d5540f76f..a78a370748b6 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -622,15 +622,15 @@ struct task_struct *__switch_to(struct task_struct *prev,
struct ppc64_tlb_batch *batch;
#endif

- /* Back up the TAR across context switches.
+ /* Back up the TAR and DSCR across context switches.
* Note that the TAR is not available for use in the kernel. (To
* provide this, the TAR should be backed up/restored on exception
* entry/exit instead, and be in pt_regs. FIXME, this should be in
* pt_regs anyway (for debug).)
- * Save the TAR here before we do treclaim/trecheckpoint as these
- * will change the TAR.
+ * Save the TAR and DSCR here before we do treclaim/trecheckpoint as
+ * these will change them.
*/
- save_tar(&prev->thread);
+ save_early_sprs(&prev->thread);

__switch_to_tm(prev);

diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index 63d051f5b7a5..cbc63a3c9455 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -436,7 +436,7 @@ void __init smp_setup_cpu_maps(void)
DBG("smp_setup_cpu_maps()\n");

while ((dn = of_find_node_by_type(dn, "cpu")) && cpu < nr_cpu_ids) {
- const int *intserv;
+ const __be32 *intserv;
int j, len;

DBG(" * %s...\n", dn->full_name);
@@ -455,10 +455,18 @@ void __init smp_setup_cpu_maps(void)
}

for (j = 0; j < nthreads && cpu < nr_cpu_ids; j++) {
+ bool avail;
+
DBG(" thread %d -> cpu %d (hard id %d)\n",
- j, cpu, intserv[j]);
- set_cpu_present(cpu, true);
- set_hard_smp_processor_id(cpu, intserv[j]);
+ j, cpu, be32_to_cpu(intserv[j]));
+
+ avail = of_device_is_available(dn);
+ if (!avail)
+ avail = !of_property_match_string(dn,
+ "enable-method", "spin-table");
+
+ set_cpu_present(cpu, avail);
+ set_hard_smp_processor_id(cpu, be32_to_cpu(intserv[j]));
set_cpu_possible(cpu, true);
cpu++;
}
diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c
index 6ecc38bd5b24..bbda76731fed 100644
--- a/arch/powerpc/mm/hash_utils_64.c
+++ b/arch/powerpc/mm/hash_utils_64.c
@@ -947,6 +947,22 @@ void hash_failure_debug(unsigned long ea, unsigned long access,
trap, vsid, ssize, psize, lpsize, pte);
}

+static void check_paca_psize(unsigned long ea, struct mm_struct *mm,
+ int psize, bool user_region)
+{
+ if (user_region) {
+ if (psize != get_paca_psize(ea)) {
+ get_paca()->context = mm->context;
+ slb_flush_and_rebolt();
+ }
+ } else if (get_paca()->vmalloc_sllp !=
+ mmu_psize_defs[mmu_vmalloc_psize].sllp) {
+ get_paca()->vmalloc_sllp =
+ mmu_psize_defs[mmu_vmalloc_psize].sllp;
+ slb_vmalloc_update();
+ }
+}
+
/* Result code is:
* 0 - handled
* 1 - normal page fault
@@ -1068,6 +1084,8 @@ int hash_page(unsigned long ea, unsigned long access, unsigned long trap)
WARN_ON(1);
}
#endif
+ check_paca_psize(ea, mm, psize, user_region);
+
goto bail;
}

@@ -1108,17 +1126,8 @@ int hash_page(unsigned long ea, unsigned long access, unsigned long trap)
#endif
}
}
- if (user_region) {
- if (psize != get_paca_psize(ea)) {
- get_paca()->context = mm->context;
- slb_flush_and_rebolt();
- }
- } else if (get_paca()->vmalloc_sllp !=
- mmu_psize_defs[mmu_vmalloc_psize].sllp) {
- get_paca()->vmalloc_sllp =
- mmu_psize_defs[mmu_vmalloc_psize].sllp;
- slb_vmalloc_update();
- }
+
+ check_paca_psize(ea, mm, psize, user_region);
#endif /* CONFIG_PPC_64K_PAGES */

#ifdef CONFIG_PPC_HAS_HASH_64K
diff --git a/arch/powerpc/platforms/pseries/eeh_pseries.c b/arch/powerpc/platforms/pseries/eeh_pseries.c
index 7fbc25b1813f..74448701b636 100644
--- a/arch/powerpc/platforms/pseries/eeh_pseries.c
+++ b/arch/powerpc/platforms/pseries/eeh_pseries.c
@@ -461,6 +461,7 @@ static int pseries_eeh_get_state(struct eeh_pe *pe, int *state)
} else {
result = EEH_STATE_NOT_SUPPORT;
}
+ break;
default:
result = EEH_STATE_NOT_SUPPORT;
}
diff --git a/arch/s390/include/asm/lowcore.h b/arch/s390/include/asm/lowcore.h
index bbf8141408cd..2bed4f02a558 100644
--- a/arch/s390/include/asm/lowcore.h
+++ b/arch/s390/include/asm/lowcore.h
@@ -142,9 +142,9 @@ struct _lowcore {
__u8 pad_0x02fc[0x0300-0x02fc]; /* 0x02fc */

/* Interrupt response block */
- __u8 irb[64]; /* 0x0300 */
+ __u8 irb[96]; /* 0x0300 */

- __u8 pad_0x0340[0x0e00-0x0340]; /* 0x0340 */
+ __u8 pad_0x0360[0x0e00-0x0360]; /* 0x0360 */

/*
* 0xe00 contains the address of the IPL Parameter Information
@@ -288,12 +288,13 @@ struct _lowcore {
__u8 pad_0x03a0[0x0400-0x03a0]; /* 0x03a0 */

/* Interrupt response block. */
- __u8 irb[64]; /* 0x0400 */
+ __u8 irb[96]; /* 0x0400 */
+ __u8 pad_0x0460[0x0480-0x0460]; /* 0x0460 */

/* Per cpu primary space access list */
- __u32 paste[16]; /* 0x0440 */
+ __u32 paste[16]; /* 0x0480 */

- __u8 pad_0x0480[0x0e00-0x0480]; /* 0x0480 */
+ __u8 pad_0x04c0[0x0e00-0x04c0]; /* 0x04c0 */

/*
* 0xe00 contains the address of the IPL Parameter Information
diff --git a/arch/sparc/net/bpf_jit_comp.c b/arch/sparc/net/bpf_jit_comp.c
index dface38a2415..560da4d0b4e4 100644
--- a/arch/sparc/net/bpf_jit_comp.c
+++ b/arch/sparc/net/bpf_jit_comp.c
@@ -83,9 +83,9 @@ static void bpf_flush_icache(void *start_, void *end_)
#define BNE (F2(0, 2) | CONDNE)

#ifdef CONFIG_SPARC64
-#define BNE_PTR (F2(0, 1) | CONDNE | (2 << 20))
+#define BE_PTR (F2(0, 1) | CONDE | (2 << 20))
#else
-#define BNE_PTR BNE
+#define BE_PTR BE
#endif

#define SETHI(K, REG) \
@@ -600,7 +600,7 @@ void bpf_jit_compile(struct sk_filter *fp)
case BPF_S_ANC_IFINDEX:
emit_skb_loadptr(dev, r_A);
emit_cmpi(r_A, 0);
- emit_branch(BNE_PTR, cleanup_addr + 4);
+ emit_branch(BE_PTR, cleanup_addr + 4);
emit_nop();
emit_load32(r_A, struct net_device, ifindex, r_A);
break;
@@ -613,7 +613,7 @@ void bpf_jit_compile(struct sk_filter *fp)
case BPF_S_ANC_HATYPE:
emit_skb_loadptr(dev, r_A);
emit_cmpi(r_A, 0);
- emit_branch(BNE_PTR, cleanup_addr + 4);
+ emit_branch(BE_PTR, cleanup_addr + 4);
emit_nop();
emit_load16(r_A, struct net_device, type, r_A);
break;
diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S
index bbc89cf397bd..4de29bc5a5b4 100644
--- a/arch/x86/kernel/entry_32.S
+++ b/arch/x86/kernel/entry_32.S
@@ -434,9 +434,10 @@ sysenter_past_esp:
jnz sysenter_audit
sysenter_do_call:
cmpl $(NR_syscalls), %eax
- jae syscall_badsys
+ jae sysenter_badsys
call *sys_call_table(,%eax,4)
movl %eax,PT_EAX(%esp)
+sysenter_after_call:
LOCKDEP_SYS_EXIT
DISABLE_INTERRUPTS(CLBR_ANY)
TRACE_IRQS_OFF
@@ -554,11 +555,6 @@ ENTRY(iret_exc)

CFI_RESTORE_STATE
ldt_ss:
- larl PT_OLDSS(%esp), %eax
- jnz restore_nocheck
- testl $0x00400000, %eax # returning to 32bit stack?
- jnz restore_nocheck # allright, normal return
-
#ifdef CONFIG_PARAVIRT
/*
* The kernel can't run on a non-flat stack if paravirt mode
@@ -691,7 +687,12 @@ END(syscall_fault)

syscall_badsys:
movl $-ENOSYS,PT_EAX(%esp)
- jmp resume_userspace
+ jmp syscall_exit
+END(syscall_badsys)
+
+sysenter_badsys:
+ movl $-ENOSYS,PT_EAX(%esp)
+ jmp sysenter_after_call
END(syscall_badsys)
CFI_ENDPROC
/*
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index 256816b73460..ad86e3b1df92 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -370,6 +370,8 @@ static inline void apic_clear_irr(int vec, struct kvm_lapic *apic)

static inline void apic_set_isr(int vec, struct kvm_lapic *apic)
{
+ /* Note that we never get here with APIC virtualization enabled. */
+
if (!__apic_test_and_set_vector(vec, apic->regs + APIC_ISR))
++apic->isr_count;
BUG_ON(apic->isr_count > MAX_APIC_VECTOR);
@@ -381,12 +383,48 @@ static inline void apic_set_isr(int vec, struct kvm_lapic *apic)
apic->highest_isr_cache = vec;
}

+static inline int apic_find_highest_isr(struct kvm_lapic *apic)
+{
+ int result;
+
+ /*
+ * Note that isr_count is always 1, and highest_isr_cache
+ * is always -1, with APIC virtualization enabled.
+ */
+ if (!apic->isr_count)
+ return -1;
+ if (likely(apic->highest_isr_cache != -1))
+ return apic->highest_isr_cache;
+
+ result = find_highest_vector(apic->regs + APIC_ISR);
+ ASSERT(result == -1 || result >= 16);
+
+ return result;
+}
+
static inline void apic_clear_isr(int vec, struct kvm_lapic *apic)
{
- if (__apic_test_and_clear_vector(vec, apic->regs + APIC_ISR))
+ struct kvm_vcpu *vcpu;
+ if (!__apic_test_and_clear_vector(vec, apic->regs + APIC_ISR))
+ return;
+
+ vcpu = apic->vcpu;
+
+ /*
+ * We do get here for APIC virtualization enabled if the guest
+ * uses the Hyper-V APIC enlightenment. In this case we may need
+ * to trigger a new interrupt delivery by writing the SVI field;
+ * on the other hand isr_count and highest_isr_cache are unused
+ * and must be left alone.
+ */
+ if (unlikely(kvm_apic_vid_enabled(vcpu->kvm)))
+ kvm_x86_ops->hwapic_isr_update(vcpu->kvm,
+ apic_find_highest_isr(apic));
+ else {
--apic->isr_count;
- BUG_ON(apic->isr_count < 0);
- apic->highest_isr_cache = -1;
+ BUG_ON(apic->isr_count < 0);
+ apic->highest_isr_cache = -1;
+ }
}

int kvm_lapic_find_highest_irr(struct kvm_vcpu *vcpu)
@@ -466,22 +504,6 @@ static void pv_eoi_clr_pending(struct kvm_vcpu *vcpu)
__clear_bit(KVM_APIC_PV_EOI_PENDING, &vcpu->arch.apic_attention);
}

-static inline int apic_find_highest_isr(struct kvm_lapic *apic)
-{
- int result;
-
- /* Note that isr_count is always 1 with vid enabled */
- if (!apic->isr_count)
- return -1;
- if (likely(apic->highest_isr_cache != -1))
- return apic->highest_isr_cache;
-
- result = find_highest_vector(apic->regs + APIC_ISR);
- ASSERT(result == -1 || result >= 16);
-
- return result;
-}
-
void kvm_apic_update_tmr(struct kvm_vcpu *vcpu, u32 *tmr)
{
struct kvm_lapic *apic = vcpu->arch.apic;
@@ -1619,6 +1641,8 @@ int kvm_get_apic_interrupt(struct kvm_vcpu *vcpu)
int vector = kvm_apic_has_interrupt(vcpu);
struct kvm_lapic *apic = vcpu->arch.apic;

+ /* Note that we never get here with APIC virtualization enabled. */
+
if (vector == -1)
return -1;

diff --git a/arch/x86/syscalls/syscall_64.tbl b/arch/x86/syscalls/syscall_64.tbl
index 38ae65dfd14f..63a899304d27 100644
--- a/arch/x86/syscalls/syscall_64.tbl
+++ b/arch/x86/syscalls/syscall_64.tbl
@@ -212,10 +212,10 @@
203 common sched_setaffinity sys_sched_setaffinity
204 common sched_getaffinity sys_sched_getaffinity
205 64 set_thread_area
-206 common io_setup sys_io_setup
+206 64 io_setup sys_io_setup
207 common io_destroy sys_io_destroy
208 common io_getevents sys_io_getevents
-209 common io_submit sys_io_submit
+209 64 io_submit sys_io_submit
210 common io_cancel sys_io_cancel
211 64 get_thread_area
212 common lookup_dcookie sys_lookup_dcookie
@@ -356,3 +356,5 @@
540 x32 process_vm_writev compat_sys_process_vm_writev
541 x32 setsockopt compat_sys_setsockopt
542 x32 getsockopt compat_sys_getsockopt
+543 x32 io_setup compat_sys_io_setup
+544 x32 io_submit compat_sys_io_submit
diff --git a/crypto/crypto_user.c b/crypto/crypto_user.c
index 1512e41cd93d..43665d0d0905 100644
--- a/crypto/crypto_user.c
+++ b/crypto/crypto_user.c
@@ -466,7 +466,7 @@ static int crypto_user_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
type -= CRYPTO_MSG_BASE;
link = &crypto_dispatch[type];

- if (!capable(CAP_NET_ADMIN))
+ if (!netlink_capable(skb, CAP_NET_ADMIN))
return -EPERM;

if ((type == (CRYPTO_MSG_GETALG - CRYPTO_MSG_BASE) &&
diff --git a/drivers/acpi/acpica/utstring.c b/drivers/acpi/acpica/utstring.c
index c53759b76a3f..9edb65f516a6 100644
--- a/drivers/acpi/acpica/utstring.c
+++ b/drivers/acpi/acpica/utstring.c
@@ -352,7 +352,7 @@ void acpi_ut_print_string(char *string, u8 max_length)
}

acpi_os_printf("\"");
- for (i = 0; string[i] && (i < max_length); i++) {
+ for (i = 0; (i < max_length) && string[i]; i++) {

/* Escape sequences */

diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 80d8a2338ce8..ceeac98f443a 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -57,6 +57,12 @@ EXPORT_SYMBOL(acpi_root_dir);

#ifdef CONFIG_X86
+#ifdef CONFIG_ACPI_CUSTOM_DSDT
+static inline int set_copy_dsdt(const struct dmi_system_id *id)
+{
+ return 0;
+}
+#else
static int set_copy_dsdt(const struct dmi_system_id *id)
{
printk(KERN_NOTICE "%s detected - "
@@ -64,6 +70,7 @@ static int set_copy_dsdt(const struct dmi_system_id *id)
acpi_gbl_copy_dsdt_locally = 1;
return 0;
}
+#endif

static struct dmi_system_id dsdt_dmi_table[] __initdata = {
/*
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index 9d13ab15a52d..7ce164157768 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -444,10 +444,14 @@ static const struct pci_device_id ahci_pci_tbl[] = {
.driver_data = board_ahci_yes_fbs }, /* 88se9172 */
{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9192),
.driver_data = board_ahci_yes_fbs }, /* 88se9172 on some Gigabyte */
+ { PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x91a0),
+ .driver_data = board_ahci_yes_fbs },
{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x91a3),
.driver_data = board_ahci_yes_fbs },
{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9230),
.driver_data = board_ahci_yes_fbs },
+ { PCI_DEVICE(PCI_VENDOR_ID_TTI, 0x0642),
+ .driver_data = board_ahci_yes_fbs },

/* Promise */
{ PCI_VDEVICE(PROMISE, 0x3f20), board_ahci }, /* PDC42819 */
diff --git a/drivers/base/power/opp.c b/drivers/base/power/opp.c
index c8ec186303db..a5d4de1b9d42 100644
--- a/drivers/base/power/opp.c
+++ b/drivers/base/power/opp.c
@@ -731,11 +731,9 @@ int of_init_opp_table(struct device *dev)
unsigned long freq = be32_to_cpup(val++) * 1000;
unsigned long volt = be32_to_cpup(val++);

- if (opp_add(dev, freq, volt)) {
+ if (opp_add(dev, freq, volt))
dev_warn(dev, "%s: Failed to add OPP %ld\n",
__func__, freq);
- continue;
- }
nr -= 2;
}

diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c
index 4d26c25aa9c5..560227b817fe 100644
--- a/drivers/block/mtip32xx/mtip32xx.c
+++ b/drivers/block/mtip32xx/mtip32xx.c
@@ -1493,6 +1493,37 @@ static inline void ata_swap_string(u16 *buf, unsigned int len)
be16_to_cpus(&buf[i]);
}

+static void mtip_set_timeout(struct driver_data *dd,
+ struct host_to_dev_fis *fis,
+ unsigned int *timeout, u8 erasemode)
+{
+ switch (fis->command) {
+ case ATA_CMD_DOWNLOAD_MICRO:
+ *timeout = 120000; /* 2 minutes */
+ break;
+ case ATA_CMD_SEC_ERASE_UNIT:
+ case 0xFC:
+ if (erasemode)
+ *timeout = ((*(dd->port->identify + 90) * 2) * 60000);
+ else
+ *timeout = ((*(dd->port->identify + 89) * 2) * 60000);
+ break;
+ case ATA_CMD_STANDBYNOW1:
+ *timeout = 120000; /* 2 minutes */
+ break;
+ case 0xF7:
+ case 0xFA:
+ *timeout = 60000; /* 60 seconds */
+ break;
+ case ATA_CMD_SMART:
+ *timeout = 15000; /* 15 seconds */
+ break;
+ default:
+ *timeout = MTIP_IOCTL_COMMAND_TIMEOUT_MS;
+ break;
+ }
+}
+
/*
* Request the device identity information.
*
@@ -1602,6 +1633,7 @@ static int mtip_standby_immediate(struct mtip_port *port)
int rv;
struct host_to_dev_fis fis;
unsigned long start;
+ unsigned int timeout;

/* Build the FIS. */
memset(&fis, 0, sizeof(struct host_to_dev_fis));
@@ -1609,6 +1641,8 @@ static int mtip_standby_immediate(struct mtip_port *port)
fis.opts = 1 << 7;
fis.command = ATA_CMD_STANDBYNOW1;

+ mtip_set_timeout(port->dd, &fis, &timeout, 0);
+
start = jiffies;
rv = mtip_exec_internal_command(port,
&fis,
@@ -1617,7 +1651,7 @@ static int mtip_standby_immediate(struct mtip_port *port)
0,
0,
GFP_ATOMIC,
- 15000);
+ timeout);
dbg_printk(MTIP_DRV_NAME "Time taken to complete standby cmd: %d ms\n",
jiffies_to_msecs(jiffies - start));
if (rv)
@@ -2156,36 +2190,6 @@ static unsigned int implicit_sector(unsigned char command,
}
return rv;
}
-static void mtip_set_timeout(struct driver_data *dd,
- struct host_to_dev_fis *fis,
- unsigned int *timeout, u8 erasemode)
-{
- switch (fis->command) {
- case ATA_CMD_DOWNLOAD_MICRO:
- *timeout = 120000; /* 2 minutes */
- break;
- case ATA_CMD_SEC_ERASE_UNIT:
- case 0xFC:
- if (erasemode)
- *timeout = ((*(dd->port->identify + 90) * 2) * 60000);
- else
- *timeout = ((*(dd->port->identify + 89) * 2) * 60000);
- break;
- case ATA_CMD_STANDBYNOW1:
- *timeout = 120000; /* 2 minutes */
- break;
- case 0xF7:
- case 0xFA:
- *timeout = 60000; /* 60 seconds */
- break;
- case ATA_CMD_SMART:
- *timeout = 15000; /* 15 seconds */
- break;
- default:
- *timeout = MTIP_IOCTL_COMMAND_TIMEOUT_MS;
- break;
- }
-}

/*
* Executes a taskfile
@@ -4285,6 +4289,57 @@ static DEFINE_HANDLER(5);
static DEFINE_HANDLER(6);
static DEFINE_HANDLER(7);

+static void mtip_disable_link_opts(struct driver_data *dd, struct pci_dev *pdev)
+{
+ int pos;
+ unsigned short pcie_dev_ctrl;
+
+ pos = pci_find_capability(pdev, PCI_CAP_ID_EXP);
+ if (pos) {
+ pci_read_config_word(pdev,
+ pos + PCI_EXP_DEVCTL,
+ &pcie_dev_ctrl);
+ if (pcie_dev_ctrl & (1 << 11) ||
+ pcie_dev_ctrl & (1 << 4)) {
+ dev_info(&dd->pdev->dev,
+ "Disabling ERO/No-Snoop on bridge device %04x:%04x\n",
+ pdev->vendor, pdev->device);
+ pcie_dev_ctrl &= ~(PCI_EXP_DEVCTL_NOSNOOP_EN |
+ PCI_EXP_DEVCTL_RELAX_EN);
+ pci_write_config_word(pdev,
+ pos + PCI_EXP_DEVCTL,
+ pcie_dev_ctrl);
+ }
+ }
+}
+
+static void mtip_fix_ero_nosnoop(struct driver_data *dd, struct pci_dev *pdev)
+{
+ /*
+ * This workaround is specific to AMD/ATI chipset with a PCI upstream
+ * device with device id 0x5aXX
+ */
+ if (pdev->bus && pdev->bus->self) {
+ if (pdev->bus->self->vendor == PCI_VENDOR_ID_ATI &&
+ ((pdev->bus->self->device & 0xff00) == 0x5a00)) {
+ mtip_disable_link_opts(dd, pdev->bus->self);
+ } else {
+ /* Check further up the topology */
+ struct pci_dev *parent_dev = pdev->bus->self;
+ if (parent_dev->bus &&
+ parent_dev->bus->parent &&
+ parent_dev->bus->parent->self &&
+ parent_dev->bus->parent->self->vendor ==
+ PCI_VENDOR_ID_ATI &&
+ (parent_dev->bus->parent->self->device &
+ 0xff00) == 0x5a00) {
+ mtip_disable_link_opts(dd,
+ parent_dev->bus->parent->self);
+ }
+ }
+ }
+}
+
/*
* Called for each supported PCI device detected.
*
@@ -4436,6 +4491,8 @@ static int mtip_pci_probe(struct pci_dev *pdev,
goto block_initialize_err;
}

+ mtip_fix_ero_nosnoop(dd, pdev);
+
/* Initialize the block layer. */
rv = mtip_block_initialize(dd);
if (rv < 0) {
@@ -4728,13 +4785,13 @@ static int __init mtip_init(void)
*/
static void __exit mtip_exit(void)
{
- debugfs_remove_recursive(dfs_parent);
-
/* Release the allocated major block device number. */
unregister_blkdev(mtip_major, MTIP_DRV_NAME);

/* Unregister the PCI driver. */
pci_unregister_driver(&mtip_pci_driver);
+
+ debugfs_remove_recursive(dfs_parent);
}

MODULE_AUTHOR("Micron Technology, Inc");
diff --git a/drivers/bluetooth/hci_ldisc.c b/drivers/bluetooth/hci_ldisc.c
index bc68a440d432..c4d2f0e48685 100644
--- a/drivers/bluetooth/hci_ldisc.c
+++ b/drivers/bluetooth/hci_ldisc.c
@@ -118,10 +118,6 @@ static inline struct sk_buff *hci_uart_dequeue(struct hci_uart *hu)

int hci_uart_tx_wakeup(struct hci_uart *hu)
{
- struct tty_struct *tty = hu->tty;
- struct hci_dev *hdev = hu->hdev;
- struct sk_buff *skb;
-
if (test_and_set_bit(HCI_UART_SENDING, &hu->tx_state)) {
set_bit(HCI_UART_TX_WAKEUP, &hu->tx_state);
return 0;
@@ -129,6 +125,22 @@ int hci_uart_tx_wakeup(struct hci_uart *hu)

BT_DBG("");

+ schedule_work(&hu->write_work);
+
+ return 0;
+}
+
+static void hci_uart_write_work(struct work_struct *work)
+{
+ struct hci_uart *hu = container_of(work, struct hci_uart, write_work);
+ struct tty_struct *tty = hu->tty;
+ struct hci_dev *hdev = hu->hdev;
+ struct sk_buff *skb;
+
+ /* REVISIT: should we cope with bad skbs or ->write() returning
+ * and error value ?
+ */
+
restart:
clear_bit(HCI_UART_TX_WAKEUP, &hu->tx_state);

@@ -153,7 +165,6 @@ restart:
goto restart;

clear_bit(HCI_UART_SENDING, &hu->tx_state);
- return 0;
}

static void hci_uart_init_work(struct work_struct *work)
@@ -289,6 +300,7 @@ static int hci_uart_tty_open(struct tty_struct *tty)
tty->receive_room = 65536;

INIT_WORK(&hu->init_ready, hci_uart_init_work);
+ INIT_WORK(&hu->write_work, hci_uart_write_work);

spin_lock_init(&hu->rx_lock);

@@ -326,6 +338,8 @@ static void hci_uart_tty_close(struct tty_struct *tty)
if (hdev)
hci_uart_close(hdev);

+ cancel_work_sync(&hu->write_work);
+
if (test_and_clear_bit(HCI_UART_PROTO_SET, &hu->flags)) {
if (hdev) {
if (test_bit(HCI_UART_REGISTERED, &hu->flags))
diff --git a/drivers/bluetooth/hci_uart.h b/drivers/bluetooth/hci_uart.h
index fffa61ff5cb1..12df101ca942 100644
--- a/drivers/bluetooth/hci_uart.h
+++ b/drivers/bluetooth/hci_uart.h
@@ -68,6 +68,7 @@ struct hci_uart {
unsigned long hdev_flags;

struct work_struct init_ready;
+ struct work_struct write_work;

struct hci_uart_proto *proto;
void *priv;
diff --git a/drivers/char/applicom.c b/drivers/char/applicom.c
index 974321a2508d..14790304b84b 100644
--- a/drivers/char/applicom.c
+++ b/drivers/char/applicom.c
@@ -345,7 +345,6 @@ out:
free_irq(apbs[i].irq, &dummy);
iounmap(apbs[i].RamIO);
}
- pci_disable_device(dev);
return ret;
}

diff --git a/drivers/connector/cn_proc.c b/drivers/connector/cn_proc.c
index 18c5b9b16645..3165811e2407 100644
--- a/drivers/connector/cn_proc.c
+++ b/drivers/connector/cn_proc.c
@@ -369,7 +369,7 @@ static void cn_proc_mcast_ctl(struct cn_msg *msg,
return;

/* Can only change if privileged. */
- if (!capable(CAP_NET_ADMIN)) {
+ if (!__netlink_ns_capable(nsp, &init_user_ns, CAP_NET_ADMIN)) {
err = EPERM;
goto out;
}
diff --git a/drivers/extcon/extcon-max77693.c b/drivers/extcon/extcon-max77693.c
index b56bdaa27d4b..9966fc0a527f 100644
--- a/drivers/extcon/extcon-max77693.c
+++ b/drivers/extcon/extcon-max77693.c
@@ -1180,7 +1180,7 @@ static int max77693_muic_probe(struct platform_device *pdev)

/* Initialize MUIC register by using platform data or default data */
- if (pdata->muic_data) {
+ if (pdata && pdata->muic_data) {
init_data = pdata->muic_data->init_data;
num_init_data = pdata->muic_data->num_init_data;
} else {
@@ -1213,7 +1213,7 @@ static int max77693_muic_probe(struct platform_device *pdev)
= init_data[i].data;
}

- if (pdata->muic_data) {
+ if (pdata && pdata->muic_data) {
struct max77693_muic_platform_data *muic_pdata = pdata->muic_data;

/*
diff --git a/drivers/extcon/extcon-max8997.c b/drivers/extcon/extcon-max8997.c
index 67d6738d85a0..09f4a9374cf5 100644
--- a/drivers/extcon/extcon-max8997.c
+++ b/drivers/extcon/extcon-max8997.c
@@ -712,7 +712,7 @@ static int max8997_muic_probe(struct platform_device *pdev)
goto err_irq;
}

- if (pdata->muic_pdata) {
+ if (pdata && pdata->muic_pdata) {
struct max8997_muic_platform_data *muic_pdata
= pdata->muic_pdata;

diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c
index 7440ef22136b..66c0f8b22199 100644
--- a/drivers/gpu/drm/radeon/atombios_crtc.c
+++ b/drivers/gpu/drm/radeon/atombios_crtc.c
@@ -859,14 +859,16 @@ static void atombios_crtc_program_pll(struct drm_crtc *crtc,
args.v5.ucMiscInfo = 0; /* HDMI depth, etc. */
if (ss_enabled && (ss->type & ATOM_EXTERNAL_SS_MASK))
args.v5.ucMiscInfo |= PIXEL_CLOCK_V5_MISC_REF_DIV_SRC;
- switch (bpc) {
- case 8:
- default:
- args.v5.ucMiscInfo |= PIXEL_CLOCK_V5_MISC_HDMI_24BPP;
- break;
- case 10:
- args.v5.ucMiscInfo |= PIXEL_CLOCK_V5_MISC_HDMI_30BPP;
- break;
+ if (encoder_mode == ATOM_ENCODER_MODE_HDMI) {
+ switch (bpc) {
+ case 8:
+ default:
+ args.v5.ucMiscInfo |= PIXEL_CLOCK_V5_MISC_HDMI_24BPP;
+ break;
+ case 10:
+ args.v5.ucMiscInfo |= PIXEL_CLOCK_V5_MISC_HDMI_30BPP;
+ break;
+ }
}
args.v5.ucTransmitterID = encoder_id;
args.v5.ucEncoderMode = encoder_mode;
@@ -881,20 +883,22 @@ static void atombios_crtc_program_pll(struct drm_crtc *crtc,
args.v6.ucMiscInfo = 0; /* HDMI depth, etc. */
if (ss_enabled && (ss->type & ATOM_EXTERNAL_SS_MASK))
args.v6.ucMiscInfo |= PIXEL_CLOCK_V6_MISC_REF_DIV_SRC;
- switch (bpc) {
- case 8:
- default:
- args.v6.ucMiscInfo |= PIXEL_CLOCK_V6_MISC_HDMI_24BPP;
- break;
- case 10:
- args.v6.ucMiscInfo |= PIXEL_CLOCK_V6_MISC_HDMI_30BPP;
- break;
- case 12:
- args.v6.ucMiscInfo |= PIXEL_CLOCK_V6_MISC_HDMI_36BPP;
- break;
- case 16:
- args.v6.ucMiscInfo |= PIXEL_CLOCK_V6_MISC_HDMI_48BPP;
- break;
+ if (encoder_mode == ATOM_ENCODER_MODE_HDMI) {
+ switch (bpc) {
+ case 8:
+ default:
+ args.v6.ucMiscInfo |= PIXEL_CLOCK_V6_MISC_HDMI_24BPP;
+ break;
+ case 10:
+ args.v6.ucMiscInfo |= PIXEL_CLOCK_V6_MISC_HDMI_30BPP;
+ break;
+ case 12:
+ args.v6.ucMiscInfo |= PIXEL_CLOCK_V6_MISC_HDMI_36BPP;
+ break;
+ case 16:
+ args.v6.ucMiscInfo |= PIXEL_CLOCK_V6_MISC_HDMI_48BPP;
+ break;
+ }
}
args.v6.ucTransmitterID = encoder_id;
args.v6.ucEncoderMode = encoder_mode;
diff --git a/drivers/gpu/drm/radeon/atombios_dp.c b/drivers/gpu/drm/radeon/atombios_dp.c
index 16023986d301..4c05f2b015cf 100644
--- a/drivers/gpu/drm/radeon/atombios_dp.c
+++ b/drivers/gpu/drm/radeon/atombios_dp.c
@@ -384,6 +384,19 @@ static int dp_get_max_dp_pix_clock(int link_rate,

/***** radeon specific DP functions *****/

+static int radeon_dp_get_max_link_rate(struct drm_connector *connector,
+ u8 dpcd[DP_DPCD_SIZE])
+{
+ int max_link_rate;
+
+ if (radeon_connector_is_dp12_capable(connector))
+ max_link_rate = min(drm_dp_max_link_rate(dpcd), 540000);
+ else
+ max_link_rate = min(drm_dp_max_link_rate(dpcd), 270000);
+
+ return max_link_rate;
+}
+
/* First get the min lane# when low rate is used according to pixel clock
* (prefer low rate), second check max lane# supported by DP panel,
* if the max lane# < low rate lane# then use max lane# instead.
@@ -393,7 +406,7 @@ static int radeon_dp_get_dp_lane_number(struct drm_connector *connector,
int pix_clock)
{
int bpp = convert_bpc_to_bpp(radeon_get_monitor_bpc(connector));
- int max_link_rate = drm_dp_max_link_rate(dpcd);
+ int max_link_rate = radeon_dp_get_max_link_rate(connector, dpcd);
int max_lane_num = drm_dp_max_lane_count(dpcd);
int lane_num;
int max_dp_pix_clock;
@@ -431,7 +444,7 @@ static int radeon_dp_get_dp_link_clock(struct drm_connector *connector,
return 540000;
}

- return drm_dp_max_link_rate(dpcd);
+ return radeon_dp_get_max_link_rate(connector, dpcd);
}

static u8 radeon_dp_encoder_service(struct radeon_device *rdev,
diff --git a/drivers/gpu/drm/radeon/atombios_encoders.c b/drivers/gpu/drm/radeon/atombios_encoders.c
index f0d8cb17c63e..76e5e29ac46c 100644
--- a/drivers/gpu/drm/radeon/atombios_encoders.c
+++ b/drivers/gpu/drm/radeon/atombios_encoders.c
@@ -1894,8 +1894,11 @@ atombios_set_encoder_crtc_source(struct drm_encoder *encoder)
args.v2.ucEncodeMode = ATOM_ENCODER_MODE_CRT;
else
args.v2.ucEncodeMode = atombios_get_encoder_mode(encoder);
- } else
+ } else if (radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT)) {
+ args.v2.ucEncodeMode = ATOM_ENCODER_MODE_LVDS;
+ } else {
args.v2.ucEncodeMode = atombios_get_encoder_mode(encoder);
+ }
switch (radeon_encoder->encoder_id) {
case ENCODER_OBJECT_ID_INTERNAL_UNIPHY:
case ENCODER_OBJECT_ID_INTERNAL_UNIPHY1:
diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c
index 5a87c9fc78d3..fc604fc75797 100644
--- a/drivers/gpu/drm/radeon/radeon_connectors.c
+++ b/drivers/gpu/drm/radeon/radeon_connectors.c
@@ -1345,7 +1345,7 @@ bool radeon_connector_is_dp12_capable(struct drm_connector *connector)
struct radeon_device *rdev = dev->dev_private;

if (ASIC_IS_DCE5(rdev) &&
- (rdev->clock.dp_extclk >= 53900) &&
+ (rdev->clock.default_dispclk >= 53900) &&
radeon_connector_encoder_is_hbr2(connector)) {
return true;
}
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 016aab4b4d32..5fa380f86154 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -796,7 +796,17 @@ struct hid_report *hid_validate_values(struct hid_device *hid,
* ->numbered being checked, which may not always be the case when
* drivers go to access report values.
*/
- report = hid->report_enum[type].report_id_hash[id];
+ if (id == 0) {
+ /*
+ * Validating on id 0 means we should examine the first
+ * report in the list.
+ */
+ report = list_entry(
+ hid->report_enum[type].report_list.next,
+ struct hid_report, list);
+ } else {
+ report = hid->report_enum[type].report_id_hash[id];
+ }
if (!report) {
hid_err(hid, "missing %s %u\n", hid_report_names[type], id);
return NULL;
diff --git a/drivers/hv/hv_balloon.c b/drivers/hv/hv_balloon.c
index deb5c25305af..694173f662d1 100644
--- a/drivers/hv/hv_balloon.c
+++ b/drivers/hv/hv_balloon.c
@@ -19,6 +19,7 @@
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

#include <linux/kernel.h>
+#include <linux/jiffies.h>
#include <linux/mman.h>
#include <linux/delay.h>
#include <linux/init.h>
@@ -459,6 +460,11 @@ static bool do_hot_add;
*/
static uint pressure_report_delay = 45;

+/*
+ * The last time we posted a pressure report to host.
+ */
+static unsigned long last_post_time;
+
module_param(hot_add, bool, (S_IRUGO | S_IWUSR));
MODULE_PARM_DESC(hot_add, "If set attempt memory hot_add");

@@ -542,6 +548,7 @@ struct hv_dynmem_device {

static struct hv_dynmem_device dm_device;

+static void post_status(struct hv_dynmem_device *dm);
#ifdef CONFIG_MEMORY_HOTPLUG

static void hv_bring_pgs_online(unsigned long start_pfn, unsigned long size)
@@ -612,7 +619,7 @@ static void hv_mem_hot_add(unsigned long start, unsigned long size,
* have not been "onlined" within the allowed time.
*/
wait_for_completion_timeout(&dm_device.ol_waitevent, 5*HZ);
-
+ post_status(&dm_device);
}

return;
@@ -951,11 +958,17 @@ static void post_status(struct hv_dynmem_device *dm)
{
struct dm_status status;
struct sysinfo val;
+ unsigned long now = jiffies;
+ unsigned long last_post = last_post_time;

if (pressure_report_delay > 0) {
--pressure_report_delay;
return;
}
+
+ if (!time_after(now, (last_post_time + HZ)))
+ return;
+
si_meminfo(&val);
memset(&status, 0, sizeof(struct dm_status));
status.hdr.type = DM_STATUS_REPORT;
@@ -983,6 +996,14 @@ static void post_status(struct hv_dynmem_device *dm)
if (status.hdr.trans_id != atomic_read(&trans_id))
return;

+ /*
+ * If the last post time that we sampled has changed,
+ * we have raced, don't post the status.
+ */
+ if (last_post != last_post_time)
+ return;
+
+ last_post_time = jiffies;
vmbus_sendpacket(dm->dev->channel, &status,
sizeof(struct dm_status),
(unsigned long)NULL,
@@ -1117,7 +1138,7 @@ static void balloon_up(struct work_struct *dummy)

if (ret == -EAGAIN)
msleep(20);
-
+ post_status(&dm_device);
} while (ret == -EAGAIN);

if (ret) {
@@ -1144,8 +1165,10 @@ static void balloon_down(struct hv_dynmem_device *dm,
struct dm_unballoon_response resp;
int i;

- for (i = 0; i < range_count; i++)
+ for (i = 0; i < range_count; i++) {
free_balloon_pages(dm, &range_array[i]);
+ post_status(&dm_device);
+ }

if (req->more_pages == 1)
return;
diff --git a/drivers/hwmon/ina2xx.c b/drivers/hwmon/ina2xx.c
index d917a2d8c30f..5cb02dd74984 100644
--- a/drivers/hwmon/ina2xx.c
+++ b/drivers/hwmon/ina2xx.c
@@ -148,7 +148,8 @@ static int ina2xx_get_value(struct ina2xx_data *data, u8 reg)

switch (reg) {
case INA2XX_SHUNT_VOLTAGE:
- val = DIV_ROUND_CLOSEST(data->regs[reg],
+ /* signed register */
+ val = DIV_ROUND_CLOSEST((s16)data->regs[reg],
data->config->shunt_div);
break;
case INA2XX_BUS_VOLTAGE:
@@ -160,8 +161,8 @@ static int ina2xx_get_value(struct ina2xx_data *data, u8 reg)
val = data->regs[reg] * data->config->power_lsb;
break;
case INA2XX_CURRENT:
- /* LSB=1mA (selected). Is in mA */
- val = data->regs[reg];
+ /* signed register, LSB=1mA (selected), in mA */
+ val = (s16)data->regs[reg];
break;
default:
/* programmer goofed */
diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c
index b6db6a0e09cd..f1e4322abe3e 100644
--- a/drivers/iio/adc/at91_adc.c
+++ b/drivers/iio/adc/at91_adc.c
@@ -161,12 +161,11 @@ static int at91_adc_channel_init(struct iio_dev *idev)
return idev->num_channels;
}

-static u8 at91_adc_get_trigger_value_by_name(struct iio_dev *idev,
+static int at91_adc_get_trigger_value_by_name(struct iio_dev *idev,
struct at91_adc_trigger *triggers,
const char *trigger_name)
{
struct at91_adc_state *st = iio_priv(idev);
- u8 value = 0;
int i;

for (i = 0; i < st->trigger_number; i++) {
@@ -179,15 +178,16 @@ static u8 at91_adc_get_trigger_value_by_name(struct iio_dev *idev,
return -ENOMEM;

if (strcmp(trigger_name, name) == 0) {
- value = triggers[i].value;
kfree(name);
- break;
+ if (triggers[i].value == 0)
+ return -EINVAL;
+ return triggers[i].value;
}

kfree(name);
}

- return value;
+ return -EINVAL;
}

static int at91_adc_configure_trigger(struct iio_trigger *trig, bool state)
@@ -197,14 +197,14 @@ static int at91_adc_configure_trigger(struct iio_trigger *trig, bool state)
struct iio_buffer *buffer = idev->buffer;
struct at91_adc_reg_desc *reg = st->registers;
u32 status = at91_adc_readl(st, reg->trigger_register);
- u8 value;
+ int value;
u8 bit;

value = at91_adc_get_trigger_value_by_name(idev,
st->trigger_list,
idev->trig->name);
- if (value == 0)
- return -EINVAL;
+ if (value < 0)
+ return value;

if (state) {
st->buffer = kmalloc(idev->scan_bytes, GFP_KERNEL);
diff --git a/drivers/iio/adc/max1363.c b/drivers/iio/adc/max1363.c
index f148d00b83f7..a7c2ddd1f7a2 100644
--- a/drivers/iio/adc/max1363.c
+++ b/drivers/iio/adc/max1363.c
@@ -1214,8 +1214,8 @@ static const struct max1363_chip_info max1363_chip_info_tbl[] = {
.num_modes = ARRAY_SIZE(max1238_mode_list),
.default_mode = s0to11,
.info = &max1238_info,
- .channels = max1238_channels,
- .num_channels = ARRAY_SIZE(max1238_channels),
+ .channels = max1038_channels,
+ .num_channels = ARRAY_SIZE(max1038_channels),
},
[max11605] = {
.bits = 8,
@@ -1224,8 +1224,8 @@ static const struct max1363_chip_info max1363_chip_info_tbl[] = {
.num_modes = ARRAY_SIZE(max1238_mode_list),
.default_mode = s0to11,
.info = &max1238_info,
- .channels = max1238_channels,
- .num_channels = ARRAY_SIZE(max1238_channels),
+ .channels = max1038_channels,
+ .num_channels = ARRAY_SIZE(max1038_channels),
},
[max11606] = {
.bits = 10,
@@ -1274,8 +1274,8 @@ static const struct max1363_chip_info max1363_chip_info_tbl[] = {
.num_modes = ARRAY_SIZE(max1238_mode_list),
.default_mode = s0to11,
.info = &max1238_info,
- .channels = max1238_channels,
- .num_channels = ARRAY_SIZE(max1238_channels),
+ .channels = max1138_channels,
+ .num_channels = ARRAY_SIZE(max1138_channels),
},
[max11611] = {
.bits = 10,
@@ -1284,8 +1284,8 @@ static const struct max1363_chip_info max1363_chip_info_tbl[] = {
.num_modes = ARRAY_SIZE(max1238_mode_list),
.default_mode = s0to11,
.info = &max1238_info,
- .channels = max1238_channels,
- .num_channels = ARRAY_SIZE(max1238_channels),
+ .channels = max1138_channels,
+ .num_channels = ARRAY_SIZE(max1138_channels),
},
[max11612] = {
.bits = 12,
diff --git a/drivers/iio/magnetometer/ak8975.c b/drivers/iio/magnetometer/ak8975.c
index 9edf4c935fd7..aeba3bbdadb0 100644
--- a/drivers/iio/magnetometer/ak8975.c
+++ b/drivers/iio/magnetometer/ak8975.c
@@ -352,8 +352,6 @@ static int ak8975_read_axis(struct iio_dev *indio_dev, int index, int *val)
{
struct ak8975_data *data = iio_priv(indio_dev);
struct i2c_client *client = data->client;
- u16 meas_reg;
- s16 raw;
int ret;

mutex_lock(&data->lock);
@@ -401,16 +399,11 @@ static int ak8975_read_axis(struct iio_dev *indio_dev, int index, int *val)
dev_err(&client->dev, "Read axis data fails\n");
goto exit;
}
- meas_reg = ret;

mutex_unlock(&data->lock);

- /* Endian conversion of the measured values. */
- raw = (s16) (le16_to_cpu(meas_reg));
-
/* Clamp to valid range. */
- raw = clamp_t(s16, raw, -4096, 4095);
- *val = raw;
+ *val = clamp_t(s16, ret, -4096, 4095);
return IIO_VAL_INT;

exit:
diff --git a/drivers/infiniband/core/user_mad.c b/drivers/infiniband/core/user_mad.c
index f0d588f8859e..1acb99100556 100644
--- a/drivers/infiniband/core/user_mad.c
+++ b/drivers/infiniband/core/user_mad.c
@@ -98,7 +98,7 @@ struct ib_umad_port {

struct ib_umad_device {
int start_port, end_port;
- struct kref ref;
+ struct kobject kobj;
struct ib_umad_port port[0];
};

@@ -134,14 +134,18 @@ static DECLARE_BITMAP(dev_map, IB_UMAD_MAX_PORTS);
static void ib_umad_add_one(struct ib_device *device);
static void ib_umad_remove_one(struct ib_device *device);

-static void ib_umad_release_dev(struct kref *ref)
+static void ib_umad_release_dev(struct kobject *kobj)
{
struct ib_umad_device *dev =
- container_of(ref, struct ib_umad_device, ref);
+ container_of(kobj, struct ib_umad_device, kobj);

kfree(dev);
}

+static struct kobj_type ib_umad_dev_ktype = {
+ .release = ib_umad_release_dev,
+};
+
static int hdr_size(struct ib_umad_file *file)
{
return file->use_pkey_index ? sizeof (struct ib_user_mad_hdr) :
@@ -780,27 +784,19 @@ static int ib_umad_open(struct inode *inode, struct file *filp)
{
struct ib_umad_port *port;
struct ib_umad_file *file;
- int ret;
+ int ret = -ENXIO;

port = container_of(inode->i_cdev, struct ib_umad_port, cdev);
- if (port)
- kref_get(&port->umad_dev->ref);
- else
- return -ENXIO;

mutex_lock(&port->file_mutex);

- if (!port->ib_dev) {
- ret = -ENXIO;
+ if (!port->ib_dev)
goto out;
- }

+ ret = -ENOMEM;
file = kzalloc(sizeof *file, GFP_KERNEL);
- if (!file) {
- kref_put(&port->umad_dev->ref, ib_umad_release_dev);
- ret = -ENOMEM;
+ if (!file)
goto out;
- }

mutex_init(&file->mutex);
spin_lock_init(&file->send_lock);
@@ -814,6 +810,13 @@ static int ib_umad_open(struct inode *inode, struct file *filp)
list_add_tail(&file->port_list, &port->file_list);

ret = nonseekable_open(inode, filp);
+ if (ret) {
+ list_del(&file->port_list);
+ kfree(file);
+ goto out;
+ }
+
+ kobject_get(&port->umad_dev->kobj);

out:
mutex_unlock(&port->file_mutex);
@@ -852,7 +855,7 @@ static int ib_umad_close(struct inode *inode, struct file *filp)
mutex_unlock(&file->port->file_mutex);

kfree(file);
- kref_put(&dev->ref, ib_umad_release_dev);
+ kobject_put(&dev->kobj);

return 0;
}
@@ -880,10 +883,6 @@ static int ib_umad_sm_open(struct inode *inode, struct file *filp)
int ret;

port = container_of(inode->i_cdev, struct ib_umad_port, sm_cdev);
- if (port)
- kref_get(&port->umad_dev->ref);
- else
- return -ENXIO;

if (filp->f_flags & O_NONBLOCK) {
if (down_trylock(&port->sm_sem)) {
@@ -898,17 +897,27 @@ static int ib_umad_sm_open(struct inode *inode, struct file *filp)
}

ret = ib_modify_port(port->ib_dev, port->port_num, 0, &props);
- if (ret) {
- up(&port->sm_sem);
- goto fail;
- }
+ if (ret)
+ goto err_up_sem;

filp->private_data = port;

- return nonseekable_open(inode, filp);
+ ret = nonseekable_open(inode, filp);
+ if (ret)
+ goto err_clr_sm_cap;
+
+ kobject_get(&port->umad_dev->kobj);
+
+ return 0;
+
+err_clr_sm_cap:
+ swap(props.set_port_cap_mask, props.clr_port_cap_mask);
+ ib_modify_port(port->ib_dev, port->port_num, 0, &props);
+
+err_up_sem:
+ up(&port->sm_sem);

fail:
- kref_put(&port->umad_dev->ref, ib_umad_release_dev);
return ret;
}

@@ -927,7 +936,7 @@ static int ib_umad_sm_close(struct inode *inode, struct file *filp)

up(&port->sm_sem);

- kref_put(&port->umad_dev->ref, ib_umad_release_dev);
+ kobject_put(&port->umad_dev->kobj);

return ret;
}
@@ -995,6 +1004,7 @@ static int find_overflow_devnum(void)
}

static int ib_umad_init_port(struct ib_device *device, int port_num,
+ struct ib_umad_device *umad_dev,
struct ib_umad_port *port)
{
int devnum;
@@ -1027,6 +1037,7 @@ static int ib_umad_init_port(struct ib_device *device, int port_num,

cdev_init(&port->cdev, &umad_fops);
port->cdev.owner = THIS_MODULE;
+ port->cdev.kobj.parent = &umad_dev->kobj;
kobject_set_name(&port->cdev.kobj, "umad%d", port->dev_num);
if (cdev_add(&port->cdev, base, 1))
goto err_cdev;
@@ -1045,6 +1056,7 @@ static int ib_umad_init_port(struct ib_device *device, int port_num,
base += IB_UMAD_MAX_PORTS;
cdev_init(&port->sm_cdev, &umad_sm_fops);
port->sm_cdev.owner = THIS_MODULE;
+ port->sm_cdev.kobj.parent = &umad_dev->kobj;
kobject_set_name(&port->sm_cdev.kobj, "issm%d", port->dev_num);
if (cdev_add(&port->sm_cdev, base, 1))
goto err_sm_cdev;
@@ -1138,7 +1150,7 @@ static void ib_umad_add_one(struct ib_device *device)
if (!umad_dev)
return;

- kref_init(&umad_dev->ref);
+ kobject_init(&umad_dev->kobj, &ib_umad_dev_ktype);

umad_dev->start_port = s;
umad_dev->end_port = e;
@@ -1146,7 +1158,8 @@ static void ib_umad_add_one(struct ib_device *device)
for (i = s; i <= e; ++i) {
umad_dev->port[i - s].umad_dev = umad_dev;

- if (ib_umad_init_port(device, i, &umad_dev->port[i - s]))
+ if (ib_umad_init_port(device, i, umad_dev,
+ &umad_dev->port[i - s]))
goto err;
}

@@ -1158,7 +1171,7 @@ err:
while (--i >= s)
ib_umad_kill_port(&umad_dev->port[i - s]);

- kref_put(&umad_dev->ref, ib_umad_release_dev);
+ kobject_put(&umad_dev->kobj);
}

static void ib_umad_remove_one(struct ib_device *device)
@@ -1172,7 +1185,7 @@ static void ib_umad_remove_one(struct ib_device *device)
for (i = 0; i <= umad_dev->end_port - umad_dev->start_port; ++i)
ib_umad_kill_port(&umad_dev->port[i]);

- kref_put(&umad_dev->ref, ib_umad_release_dev);
+ kobject_put(&umad_dev->kobj);
}

static char *umad_devnode(struct device *dev, umode_t *mode)
diff --git a/drivers/infiniband/hw/cxgb4/cq.c b/drivers/infiniband/hw/cxgb4/cq.c
index 0f1607c8325a..3bd6b698c236 100644
--- a/drivers/infiniband/hw/cxgb4/cq.c
+++ b/drivers/infiniband/hw/cxgb4/cq.c
@@ -843,7 +843,8 @@ struct ib_cq *c4iw_create_cq(struct ib_device *ibdev, int entries,
uresp.gts_key = ucontext->key;
ucontext->key += PAGE_SIZE;
spin_unlock(&ucontext->mmap_lock);
- ret = ib_copy_to_udata(udata, &uresp, sizeof uresp);
+ ret = ib_copy_to_udata(udata, &uresp,
+ sizeof(uresp) - sizeof(uresp.reserved));
if (ret)
goto err5;

diff --git a/drivers/infiniband/hw/cxgb4/user.h b/drivers/infiniband/hw/cxgb4/user.h
index 32b754c35ab7..4893599227bb 100644
--- a/drivers/infiniband/hw/cxgb4/user.h
+++ b/drivers/infiniband/hw/cxgb4/user.h
@@ -48,6 +48,7 @@ struct c4iw_create_cq_resp {
__u32 cqid;
__u32 size;
__u32 qid_mask;
+ __u32 reserved; /* explicit padding (optional for i386) */
};

diff --git a/drivers/infiniband/hw/ipath/ipath_diag.c b/drivers/infiniband/hw/ipath/ipath_diag.c
index e2f9a51f4a38..45802e97332e 100644
--- a/drivers/infiniband/hw/ipath/ipath_diag.c
+++ b/drivers/infiniband/hw/ipath/ipath_diag.c
@@ -346,6 +346,10 @@ static ssize_t ipath_diagpkt_write(struct file *fp,
ret = -EFAULT;
goto bail;
}
+ dp.len = odp.len;
+ dp.unit = odp.unit;
+ dp.data = odp.data;
+ dp.pbc_wd = 0;
} else {
ret = -EINVAL;
goto bail;
diff --git a/drivers/infiniband/hw/mlx5/cq.c b/drivers/infiniband/hw/mlx5/cq.c
index 344ab03948a3..706833ab7e7e 100644
--- a/drivers/infiniband/hw/mlx5/cq.c
+++ b/drivers/infiniband/hw/mlx5/cq.c
@@ -32,6 +32,7 @@

#include <linux/kref.h>
#include <rdma/ib_umem.h>
+#include <rdma/ib_user_verbs.h>
#include "mlx5_ib.h"
#include "user.h"

@@ -518,14 +519,24 @@ static int create_cq_user(struct mlx5_ib_dev *dev, struct ib_udata *udata,
int *cqe_size, int *index, int *inlen)
{
struct mlx5_ib_create_cq ucmd;
+ size_t ucmdlen;
int page_shift;
int npages;
int ncont;
int err;

- if (ib_copy_from_udata(&ucmd, udata, sizeof(ucmd)))
+ ucmdlen =
+ (udata->inlen - sizeof(struct ib_uverbs_cmd_hdr) <
+ sizeof(ucmd)) ? (sizeof(ucmd) -
+ sizeof(ucmd.reserved)) : sizeof(ucmd);
+
+ if (ib_copy_from_udata(&ucmd, udata, ucmdlen))
return -EFAULT;

+ if (ucmdlen == sizeof(ucmd) &&
+ ucmd.reserved != 0)
+ return -EINVAL;
+
if (ucmd.cqe_size != 64 && ucmd.cqe_size != 128)
return -EINVAL;

diff --git a/drivers/infiniband/hw/mlx5/srq.c b/drivers/infiniband/hw/mlx5/srq.c
index 84d297afd6a9..77f98f2b4b4f 100644
--- a/drivers/infiniband/hw/mlx5/srq.c
+++ b/drivers/infiniband/hw/mlx5/srq.c
@@ -35,6 +35,7 @@
#include <linux/mlx5/srq.h>
#include <linux/slab.h>
#include <rdma/ib_umem.h>
+#include <rdma/ib_user_verbs.h>

#include "mlx5_ib.h"
#include "user.h"
@@ -78,16 +79,27 @@ static int create_srq_user(struct ib_pd *pd, struct mlx5_ib_srq *srq,
{
struct mlx5_ib_dev *dev = to_mdev(pd->device);
struct mlx5_ib_create_srq ucmd;
+ size_t ucmdlen;
int err;
int npages;
int page_shift;
int ncont;
u32 offset;

- if (ib_copy_from_udata(&ucmd, udata, sizeof(ucmd))) {
+ ucmdlen =
+ (udata->inlen - sizeof(struct ib_uverbs_cmd_hdr) <
+ sizeof(ucmd)) ? (sizeof(ucmd) -
+ sizeof(ucmd.reserved)) : sizeof(ucmd);
+
+ if (ib_copy_from_udata(&ucmd, udata, ucmdlen)) {
mlx5_ib_dbg(dev, "failed copy udata\n");
return -EFAULT;
}
+
+ if (ucmdlen == sizeof(ucmd) &&
+ ucmd.reserved != 0)
+ return -EINVAL;
+
srq->wq_sig = !!(ucmd.flags & MLX5_SRQ_FLAG_SIGNATURE);

srq->umem = ib_umem_get(pd->uobject->context, ucmd.buf_addr, buf_size,
diff --git a/drivers/infiniband/hw/mlx5/user.h b/drivers/infiniband/hw/mlx5/user.h
index a886de3e593c..84fea5d00cd2 100644
--- a/drivers/infiniband/hw/mlx5/user.h
+++ b/drivers/infiniband/hw/mlx5/user.h
@@ -84,6 +84,7 @@ struct mlx5_ib_create_cq {
__u64 buf_addr;
__u64 db_addr;
__u32 cqe_size;
+ __u32 reserved; /* explicit padding (optional on i386) */
};

struct mlx5_ib_create_cq_resp {
@@ -99,6 +100,7 @@ struct mlx5_ib_create_srq {
__u64 buf_addr;
__u64 db_addr;
__u32 flags;
+ __u32 reserved; /* explicit padding (optional on i386) */
};

struct mlx5_ib_create_srq_resp {
diff --git a/drivers/infiniband/hw/qib/qib_mad.c b/drivers/infiniband/hw/qib/qib_mad.c
index ccb119143d20..1dd9fcbb7c9a 100644
--- a/drivers/infiniband/hw/qib/qib_mad.c
+++ b/drivers/infiniband/hw/qib/qib_mad.c
@@ -1028,7 +1028,7 @@ static int set_pkeys(struct qib_devdata *dd, u8 port, u16 *pkeys)

event.event = IB_EVENT_PKEY_CHANGE;
event.device = &dd->verbs_dev.ibdev;
- event.element.port_num = 1;
+ event.element.port_num = port;
ib_dispatch_event(&event);
}
return 0;
diff --git a/drivers/infiniband/ulp/isert/ib_isert.c b/drivers/infiniband/ulp/isert/ib_isert.c
index 8bb57deb86cc..6ed7c829b863 100644
--- a/drivers/infiniband/ulp/isert/ib_isert.c
+++ b/drivers/infiniband/ulp/isert/ib_isert.c
@@ -572,14 +572,12 @@ isert_disconnect_work(struct work_struct *work)
isert_put_conn(isert_conn);
return;
}
- if (!isert_conn->logout_posted) {
- pr_debug("Calling rdma_disconnect for !logout_posted from"
- " isert_disconnect_work\n");
+
+ if (isert_conn->disconnect) {
+ /* Send DREQ/DREP towards our initiator */
rdma_disconnect(isert_conn->conn_cm_id);
- mutex_unlock(&isert_conn->conn_mutex);
- iscsit_cause_connection_reinstatement(isert_conn->conn, 0);
- goto wake_up;
}
+
mutex_unlock(&isert_conn->conn_mutex);

wake_up:
@@ -588,10 +586,11 @@ wake_up:
}

static void
-isert_disconnected_handler(struct rdma_cm_id *cma_id)
+isert_disconnected_handler(struct rdma_cm_id *cma_id, bool disconnect)
{
struct isert_conn *isert_conn = (struct isert_conn *)cma_id->context;

+ isert_conn->disconnect = disconnect;
INIT_WORK(&isert_conn->conn_logout_work, isert_disconnect_work);
schedule_work(&isert_conn->conn_logout_work);
}
@@ -600,29 +599,28 @@ static int
isert_cma_handler(struct rdma_cm_id *cma_id, struct rdma_cm_event *event)
{
int ret = 0;
+ bool disconnect = false;

pr_debug("isert_cma_handler: event %d status %d conn %p id %p\n",
event->event, event->status, cma_id->context, cma_id);

switch (event->event) {
case RDMA_CM_EVENT_CONNECT_REQUEST:
- pr_debug("RDMA_CM_EVENT_CONNECT_REQUEST: >>>>>>>>>>>>>>>\n");
ret = isert_connect_request(cma_id, event);
break;
case RDMA_CM_EVENT_ESTABLISHED:
- pr_debug("RDMA_CM_EVENT_ESTABLISHED >>>>>>>>>>>>>>\n");
isert_connected_handler(cma_id);
break;
- case RDMA_CM_EVENT_DISCONNECTED:
- pr_debug("RDMA_CM_EVENT_DISCONNECTED: >>>>>>>>>>>>>>\n");
- isert_disconnected_handler(cma_id);
- break;
- case RDMA_CM_EVENT_DEVICE_REMOVAL:
- case RDMA_CM_EVENT_ADDR_CHANGE:
+ case RDMA_CM_EVENT_ADDR_CHANGE: /* FALLTHRU */
+ case RDMA_CM_EVENT_DISCONNECTED: /* FALLTHRU */
+ case RDMA_CM_EVENT_DEVICE_REMOVAL: /* FALLTHRU */
+ disconnect = true;
+ case RDMA_CM_EVENT_TIMEWAIT_EXIT: /* FALLTHRU */
+ isert_disconnected_handler(cma_id, disconnect);
break;
case RDMA_CM_EVENT_CONNECT_ERROR:
default:
- pr_err("Unknown RDMA CMA event: %d\n", event->event);
+ pr_err("Unhandled RDMA CMA event: %d\n", event->event);
break;
}

@@ -1437,11 +1435,8 @@ isert_do_control_comp(struct work_struct *work)
break;
case ISTATE_SEND_LOGOUTRSP:
pr_debug("Calling iscsit_logout_post_handler >>>>>>>>>>>>>>\n");
- /*
- * Call atomic_dec(&isert_conn->post_send_buf_count)
- * from isert_wait_conn()
- */
- isert_conn->logout_posted = true;
+
+ atomic_dec(&isert_conn->post_send_buf_count);
iscsit_logout_post_handler(cmd, cmd->conn);
break;
case ISTATE_SEND_TEXTRSP:
@@ -1555,6 +1550,8 @@ isert_cq_rx_comp_err(struct isert_conn *isert_conn)
isert_conn->state = ISER_CONN_DOWN;
mutex_unlock(&isert_conn->conn_mutex);

+ iscsit_cause_connection_reinstatement(isert_conn->conn, 0);
+
complete(&isert_conn->conn_wait_comp_err);
}

@@ -1814,7 +1811,7 @@ isert_put_text_rsp(struct iscsi_cmd *cmd, struct iscsi_conn *conn)
int rc;

isert_create_send_desc(isert_conn, isert_cmd, &isert_cmd->tx_desc);
- rc = iscsit_build_text_rsp(cmd, conn, hdr);
+ rc = iscsit_build_text_rsp(cmd, conn, hdr, ISCSI_INFINIBAND);
if (rc < 0)
return rc;

@@ -2310,9 +2307,14 @@ accept_wait:
return -ENODEV;

spin_lock_bh(&np->np_thread_lock);
- if (np->np_thread_state == ISCSI_NP_THREAD_RESET) {
+ if (np->np_thread_state >= ISCSI_NP_THREAD_RESET) {
spin_unlock_bh(&np->np_thread_lock);
- pr_debug("ISCSI_NP_THREAD_RESET for isert_accept_np\n");
+ pr_debug("np_thread_state %d for isert_accept_np\n",
+ np->np_thread_state);
+ /**
+ * No point in stalling here when np_thread
+ * is in state RESET/SHUTDOWN/EXIT - bail
+ **/
return -ENODEV;
}
spin_unlock_bh(&np->np_thread_lock);
@@ -2362,15 +2364,9 @@ static void isert_wait_conn(struct iscsi_conn *conn)
struct isert_conn *isert_conn = conn->context;

pr_debug("isert_wait_conn: Starting \n");
- /*
- * Decrement post_send_buf_count for special case when called
- * from isert_do_control_comp() -> iscsit_logout_post_handler()
- */
- mutex_lock(&isert_conn->conn_mutex);
- if (isert_conn->logout_posted)
- atomic_dec(&isert_conn->post_send_buf_count);

- if (isert_conn->conn_cm_id && isert_conn->state != ISER_CONN_DOWN) {
+ mutex_lock(&isert_conn->conn_mutex);
+ if (isert_conn->conn_cm_id) {
pr_debug("Calling rdma_disconnect from isert_wait_conn\n");
rdma_disconnect(isert_conn->conn_cm_id);
}
@@ -2456,6 +2452,7 @@ destroy_rx_wq:

static void __exit isert_exit(void)
{
+ flush_scheduled_work();
kmem_cache_destroy(isert_cmd_cache);
destroy_workqueue(isert_comp_wq);
destroy_workqueue(isert_rx_wq);
diff --git a/drivers/infiniband/ulp/isert/ib_isert.h b/drivers/infiniband/ulp/isert/ib_isert.h
index 3fe0299efc11..174c4fffd8c4 100644
--- a/drivers/infiniband/ulp/isert/ib_isert.h
+++ b/drivers/infiniband/ulp/isert/ib_isert.h
@@ -78,7 +78,6 @@ struct isert_device;

struct isert_conn {
enum iser_conn_state state;
- bool logout_posted;
int post_recv_buf_count;
atomic_t post_send_buf_count;
u32 responder_resources;
@@ -106,6 +105,7 @@ struct isert_conn {
struct completion conn_wait;
struct completion conn_wait_comp_err;
struct kref conn_kref;
+ bool disconnect;
};

#define ISERT_MAX_CQ 64
diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index 17b58f4f0681..024fa025a7ab 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -1412,6 +1412,12 @@ err_unmap:
err_iu:
srp_put_tx_iu(target, iu, SRP_IU_CMD);

+ /*
+ * Avoid that the loops that iterate over the request ring can
+ * encounter a dangling SCSI command pointer.
+ */
+ req->scmnd = NULL;
+
spin_lock_irqsave(&target->lock, flags);
list_add(&req->list, &target->free_reqs);

diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c
index 01fbea59398a..899e89bd243d 100644
--- a/drivers/input/mouse/elantech.c
+++ b/drivers/input/mouse/elantech.c
@@ -473,8 +473,15 @@ static void elantech_report_absolute_v3(struct psmouse *psmouse,
input_report_key(dev, BTN_TOOL_FINGER, fingers == 1);
input_report_key(dev, BTN_TOOL_DOUBLETAP, fingers == 2);
input_report_key(dev, BTN_TOOL_TRIPLETAP, fingers == 3);
- input_report_key(dev, BTN_LEFT, packet[0] & 0x01);
- input_report_key(dev, BTN_RIGHT, packet[0] & 0x02);
+
+ /* For clickpads map both buttons to BTN_LEFT */
+ if (etd->fw_version & 0x001000) {
+ input_report_key(dev, BTN_LEFT, packet[0] & 0x03);
+ } else {
+ input_report_key(dev, BTN_LEFT, packet[0] & 0x01);
+ input_report_key(dev, BTN_RIGHT, packet[0] & 0x02);
+ }
+
input_report_abs(dev, ABS_PRESSURE, pres);
input_report_abs(dev, ABS_TOOL_WIDTH, width);

@@ -484,10 +491,17 @@ static void elantech_report_absolute_v3(struct psmouse *psmouse,
static void elantech_input_sync_v4(struct psmouse *psmouse)
{
struct input_dev *dev = psmouse->dev;
+ struct elantech_data *etd = psmouse->private;
unsigned char *packet = psmouse->packet;

- input_report_key(dev, BTN_LEFT, packet[0] & 0x01);
- input_report_key(dev, BTN_RIGHT, packet[0] & 0x02);
+ /* For clickpads map both buttons to BTN_LEFT */
+ if (etd->fw_version & 0x001000) {
+ input_report_key(dev, BTN_LEFT, packet[0] & 0x03);
+ } else {
+ input_report_key(dev, BTN_LEFT, packet[0] & 0x01);
+ input_report_key(dev, BTN_RIGHT, packet[0] & 0x02);
+ }
+
input_mt_report_pointer_emulation(dev, true);
input_sync(dev);
}
@@ -835,7 +849,7 @@ static int elantech_set_absolute_mode(struct psmouse *psmouse)
if (etd->set_hw_resolution)
etd->reg_10 = 0x0b;
else
- etd->reg_10 = 0x03;
+ etd->reg_10 = 0x01;

if (elantech_write_reg(psmouse, 0x10, etd->reg_10))
rc = -1;
@@ -1336,7 +1350,8 @@ static int elantech_reconnect(struct psmouse *psmouse)
}

/*
- * Some hw_version 3 models go into error state when we try to set bit 3 of r10
+ * Some hw_version 3 models go into error state when we try to set
+ * bit 3 and/or bit 1 of r10.
*/
static const struct dmi_system_id no_hw_res_dmi_table[] = {
#if defined(CONFIG_DMI) && defined(CONFIG_X86)
diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
index 316f8a9af93b..7dab6e605c88 100644
--- a/drivers/md/dm-thin.c
+++ b/drivers/md/dm-thin.c
@@ -2675,7 +2675,8 @@ static void set_discard_limits(struct pool_c *pt, struct queue_limits *limits)
*/
if (pt->adjusted_pf.discard_passdown) {
data_limits = &bdev_get_queue(pt->data_dev->bdev)->limits;
- limits->discard_granularity = data_limits->discard_granularity;
+ limits->discard_granularity = max(data_limits->discard_granularity,
+ pool->sectors_per_block << SECTOR_SHIFT);
} else
limits->discard_granularity = pool->sectors_per_block << SECTOR_SHIFT;
}
diff --git a/drivers/media/dvb-core/dvb-usb-ids.h b/drivers/media/dvb-core/dvb-usb-ids.h
index 54e803a45e7e..d58fad38a13b 100644
--- a/drivers/media/dvb-core/dvb-usb-ids.h
+++ b/drivers/media/dvb-core/dvb-usb-ids.h
@@ -257,6 +257,7 @@
#define USB_PID_TERRATEC_T5 0x10a1
#define USB_PID_NOXON_DAB_STICK 0x00b3
#define USB_PID_NOXON_DAB_STICK_REV2 0x00e0
+#define USB_PID_NOXON_DAB_STICK_REV3 0x00b4
#define USB_PID_PINNACLE_EXPRESSCARD_320CX 0x022e
#define USB_PID_PINNACLE_PCTV2000E 0x022c
#define USB_PID_PINNACLE_PCTV_DVB_T_FLASH 0x0228
@@ -318,6 +319,7 @@
#define USB_PID_WINFAST_DTV_DONGLE_H 0x60f6
#define USB_PID_WINFAST_DTV_DONGLE_STK7700P_2 0x6f01
#define USB_PID_WINFAST_DTV_DONGLE_GOLD 0x6029
+#define USB_PID_WINFAST_DTV_DONGLE_MINID 0x6f0f
#define USB_PID_GENPIX_8PSK_REV_1_COLD 0x0200
#define USB_PID_GENPIX_8PSK_REV_1_WARM 0x0201
#define USB_PID_GENPIX_8PSK_REV_2 0x0202
@@ -359,6 +361,7 @@
#define USB_PID_FRIIO_WHITE 0x0001
#define USB_PID_TVWAY_PLUS 0x0002
#define USB_PID_SVEON_STV20 0xe39d
+#define USB_PID_SVEON_STV20_RTL2832U 0xd39d
#define USB_PID_SVEON_STV22 0xe401
#define USB_PID_SVEON_STV22_IT9137 0xe411
#define USB_PID_AZUREWAVE_AZ6027 0x3275
@@ -370,4 +373,7 @@
#define USB_PID_TECHNISAT_USB2_DVB_S2 0x0500
#define USB_PID_CPYTO_REDI_PC50A 0xa803
#define USB_PID_CTVDIGDUAL_V2 0xe410
+#define USB_PID_PCTV_2002E 0x025c
+#define USB_PID_PCTV_2002E_SE 0x025d
+#define USB_PID_SVEON_STV27 0xd3af
#endif
diff --git a/drivers/media/pci/ivtv/ivtv-alsa-pcm.c b/drivers/media/pci/ivtv/ivtv-alsa-pcm.c
index e1863dbf4edc..7a9b98bc208b 100644
--- a/drivers/media/pci/ivtv/ivtv-alsa-pcm.c
+++ b/drivers/media/pci/ivtv/ivtv-alsa-pcm.c
@@ -159,6 +159,12 @@ static int snd_ivtv_pcm_capture_open(struct snd_pcm_substream *substream)

/* Instruct the CX2341[56] to start sending packets */
snd_ivtv_lock(itvsc);
+
+ if (ivtv_init_on_first_open(itv)) {
+ snd_ivtv_unlock(itvsc);
+ return -ENXIO;
+ }
+
s = &itv->streams[IVTV_ENC_STREAM_TYPE_PCM];

v4l2_fh_init(&item.fh, s->vdev);
diff --git a/drivers/media/usb/dvb-usb-v2/rtl28xxu.c b/drivers/media/usb/dvb-usb-v2/rtl28xxu.c
index c0cd0848631b..1bcc77bf3989 100644
--- a/drivers/media/usb/dvb-usb-v2/rtl28xxu.c
+++ b/drivers/media/usb/dvb-usb-v2/rtl28xxu.c
@@ -1362,12 +1362,16 @@ static const struct usb_device_id rtl28xxu_id_table[] = {
&rtl2832u_props, "TerraTec NOXON DAB Stick", NULL) },
{ DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_NOXON_DAB_STICK_REV2,
&rtl2832u_props, "TerraTec NOXON DAB Stick (rev 2)", NULL) },
+ { DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_NOXON_DAB_STICK_REV3,
+ &rtl2832u_props, "TerraTec NOXON DAB Stick (rev 3)", NULL) },
{ DVB_USB_DEVICE(USB_VID_GTEK, USB_PID_TREKSTOR_TERRES_2_0,
&rtl2832u_props, "Trekstor DVB-T Stick Terres 2.0", NULL) },
{ DVB_USB_DEVICE(USB_VID_DEXATEK, 0x1101,
&rtl2832u_props, "Dexatek DK DVB-T Dongle", NULL) },
{ DVB_USB_DEVICE(USB_VID_LEADTEK, 0x6680,
&rtl2832u_props, "DigitalNow Quad DVB-T Receiver", NULL) },
+ { DVB_USB_DEVICE(USB_VID_LEADTEK, USB_PID_WINFAST_DTV_DONGLE_MINID,
+ &rtl2832u_props, "Leadtek Winfast DTV Dongle Mini D", NULL) },
{ DVB_USB_DEVICE(USB_VID_TERRATEC, 0x00d3,
&rtl2832u_props, "TerraTec Cinergy T Stick RC (Rev. 3)", NULL) },
{ DVB_USB_DEVICE(USB_VID_DEXATEK, 0x1102,
@@ -1388,6 +1392,17 @@ static const struct usb_device_id rtl28xxu_id_table[] = {
&rtl2832u_props, "Leadtek WinFast DTV Dongle mini", NULL) },
{ DVB_USB_DEVICE(USB_VID_GTEK, USB_PID_CPYTO_REDI_PC50A,
&rtl2832u_props, "Crypto ReDi PC 50 A", NULL) },
+ { DVB_USB_DEVICE(USB_VID_KYE, 0x707f,
+ &rtl2832u_props, "Genius TVGo DVB-T03", NULL) },
+ { DVB_USB_DEVICE(USB_VID_KWORLD_2, 0xd395,
+ &rtl2832u_props, "Peak DVB-T USB", NULL) },
+ { DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_SVEON_STV20_RTL2832U,
+ &rtl2832u_props, "Sveon STV20", NULL) },
+ { DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_SVEON_STV27,
+ &rtl2832u_props, "Sveon STV27", NULL) },
+
+ { DVB_USB_DEVICE(USB_VID_HANFTEK, 0x0131,
+ &rtl2832u_props, "Astrometa DVB-T2", NULL) },
{ }
};
MODULE_DEVICE_TABLE(usb, rtl28xxu_id_table);
diff --git a/drivers/media/usb/dvb-usb/dib0700_devices.c b/drivers/media/usb/dvb-usb/dib0700_devices.c
index f08136052f9c..829323e42ca0 100644
--- a/drivers/media/usb/dvb-usb/dib0700_devices.c
+++ b/drivers/media/usb/dvb-usb/dib0700_devices.c
@@ -3589,6 +3589,8 @@ struct usb_device_id dib0700_usb_id_table[] = {
{ USB_DEVICE(USB_VID_DIBCOM, USB_PID_DIBCOM_TFE7790P) },
{ USB_DEVICE(USB_VID_DIBCOM, USB_PID_DIBCOM_TFE8096P) },
/* 80 */{ USB_DEVICE(USB_VID_ELGATO, USB_PID_ELGATO_EYETV_DTT_2) },
+ { USB_DEVICE(USB_VID_PCTV, USB_PID_PCTV_2002E) },
+ { USB_DEVICE(USB_VID_PCTV, USB_PID_PCTV_2002E_SE) },
{ 0 } /* Terminating entry */
};
MODULE_DEVICE_TABLE(usb, dib0700_usb_id_table);
@@ -3993,12 +3995,20 @@ struct dvb_usb_device_properties dib0700_devices[] = {
}
},

- .num_device_descs = 1,
+ .num_device_descs = 3,
.devices = {
{ "Hauppauge Nova-TD Stick (52009)",
{ &dib0700_usb_id_table[35], NULL },
{ NULL },
},
+ { "PCTV 2002e",
+ { &dib0700_usb_id_table[81], NULL },
+ { NULL },
+ },
+ { "PCTV 2002e SE",
+ { &dib0700_usb_id_table[82], NULL },
+ { NULL },
+ },
},

.rc.core = {
diff --git a/drivers/media/usb/stk1160/stk1160-core.c b/drivers/media/usb/stk1160/stk1160-core.c
index 34a26e0cfe77..03504dcf3c52 100644
--- a/drivers/media/usb/stk1160/stk1160-core.c
+++ b/drivers/media/usb/stk1160/stk1160-core.c
@@ -67,17 +67,25 @@ int stk1160_read_reg(struct stk1160 *dev, u16 reg, u8 *value)
{
int ret;
int pipe = usb_rcvctrlpipe(dev->udev, 0);
+ u8 *buf;

*value = 0;
+
+ buf = kmalloc(sizeof(u8), GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
ret = usb_control_msg(dev->udev, pipe, 0x00,
USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
- 0x00, reg, value, sizeof(u8), HZ);
+ 0x00, reg, buf, sizeof(u8), HZ);
if (ret < 0) {
stk1160_err("read failed on reg 0x%x (%d)\n",
reg, ret);
+ kfree(buf);
return ret;
}

+ *value = *buf;
+ kfree(buf);
return 0;
}

diff --git a/drivers/media/usb/stk1160/stk1160.h b/drivers/media/usb/stk1160/stk1160.h
index 05b05b160e1e..abdea484c998 100644
--- a/drivers/media/usb/stk1160/stk1160.h
+++ b/drivers/media/usb/stk1160/stk1160.h
@@ -143,7 +143,6 @@ struct stk1160 {
int num_alt;

struct stk1160_isoc_ctl isoc_ctl;
- char urb_buf[255]; /* urb control msg buffer */

/* frame properties */
int width; /* current frame width */
diff --git a/drivers/media/usb/uvc/uvc_video.c b/drivers/media/usb/uvc/uvc_video.c
index e1c5bf3ea112..c081812ac5c0 100644
--- a/drivers/media/usb/uvc/uvc_video.c
+++ b/drivers/media/usb/uvc/uvc_video.c
@@ -361,6 +361,14 @@ static int uvc_commit_video(struct uvc_streaming *stream,
* Clocks and timestamps
*/

+static inline void uvc_video_get_ts(struct timespec *ts)
+{
+ if (uvc_clock_param == CLOCK_MONOTONIC)
+ ktime_get_ts(ts);
+ else
+ ktime_get_real_ts(ts);
+}
+
static void
uvc_video_clock_decode(struct uvc_streaming *stream, struct uvc_buffer *buf,
const __u8 *data, int len)
@@ -420,7 +428,7 @@ uvc_video_clock_decode(struct uvc_streaming *stream, struct uvc_buffer *buf,
stream->clock.last_sof = dev_sof;

host_sof = usb_get_current_frame_number(stream->dev->udev);
- ktime_get_ts(&ts);
+ uvc_video_get_ts(&ts);

/* The UVC specification allows device implementations that can't obtain
* the USB frame number to keep their own frame counters as long as they
@@ -1010,10 +1018,7 @@ static int uvc_video_decode_start(struct uvc_streaming *stream,
return -ENODATA;
}

- if (uvc_clock_param == CLOCK_MONOTONIC)
- ktime_get_ts(&ts);
- else
- ktime_get_real_ts(&ts);
+ uvc_video_get_ts(&ts);

buf->buf.v4l2_buf.sequence = stream->sequence;
buf->buf.v4l2_buf.timestamp.tv_sec = ts.tv_sec;
diff --git a/drivers/mfd/twl4030-madc.c b/drivers/mfd/twl4030-madc.c
index 1ea54d4d003a..10588120e294 100644
--- a/drivers/mfd/twl4030-madc.c
+++ b/drivers/mfd/twl4030-madc.c
@@ -614,6 +614,7 @@ int twl4030_get_madc_conversion(int channel_no)
req.channels = (1 << channel_no);
req.method = TWL4030_MADC_SW2;
req.active = 0;
+ req.raw = 0;
req.func_cb = NULL;
ret = twl4030_madc_conversion(&req);
if (ret < 0)
diff --git a/drivers/misc/mei/hw-me.c b/drivers/misc/mei/hw-me.c
index 3412adcdaeb0..e2ca1574d22a 100644
--- a/drivers/misc/mei/hw-me.c
+++ b/drivers/misc/mei/hw-me.c
@@ -183,8 +183,21 @@ static int mei_me_hw_reset(struct mei_device *dev, bool intr_enable)
else
hcsr &= ~H_IE;

+ dev->recvd_hw_ready = false;
mei_me_reg_write(hw, H_CSR, hcsr);

+ /*
+ * Host reads the H_CSR once to ensure that the
+ * posted write to H_CSR completes.
+ */
+ hcsr = mei_hcsr_read(hw);
+
+ if ((hcsr & H_RST) == 0)
+ dev_warn(&dev->pdev->dev, "H_RST is not set = 0x%08X", hcsr);
+
+ if ((hcsr & H_RDY) == H_RDY)
+ dev_warn(&dev->pdev->dev, "H_RDY is not cleared 0x%08X", hcsr);
+
if (dev->dev_state == MEI_DEV_POWER_DOWN)
mei_me_hw_reset_release(dev);

@@ -233,10 +246,7 @@ static bool mei_me_hw_is_ready(struct mei_device *dev)
static int mei_me_hw_ready_wait(struct mei_device *dev)
{
int err;
- if (mei_me_hw_is_ready(dev))
- return 0;

- dev->recvd_hw_ready = false;
mutex_unlock(&dev->device_lock);
err = wait_event_interruptible_timeout(dev->wait_hw_ready,
dev->recvd_hw_ready,
diff --git a/drivers/mtd/nand/fsl_elbc_nand.c b/drivers/mtd/nand/fsl_elbc_nand.c
index 20657209a472..c31d183820c5 100644
--- a/drivers/mtd/nand/fsl_elbc_nand.c
+++ b/drivers/mtd/nand/fsl_elbc_nand.c
@@ -725,6 +725,19 @@ static int fsl_elbc_write_page(struct mtd_info *mtd, struct nand_chip *chip,
return 0;
}

+/* ECC will be calculated automatically, and errors will be detected in
+ * waitfunc.
+ */
+static int fsl_elbc_write_subpage(struct mtd_info *mtd, struct nand_chip *chip,
+ uint32_t offset, uint32_t data_len,
+ const uint8_t *buf, int oob_required)
+{
+ fsl_elbc_write_buf(mtd, buf, mtd->writesize);
+ fsl_elbc_write_buf(mtd, chip->oob_poi, mtd->oobsize);
+
+ return 0;
+}
+
static int fsl_elbc_chip_init(struct fsl_elbc_mtd *priv)
{
struct fsl_lbc_ctrl *ctrl = priv->ctrl;
@@ -763,6 +776,7 @@ static int fsl_elbc_chip_init(struct fsl_elbc_mtd *priv)

chip->ecc.read_page = fsl_elbc_read_page;
chip->ecc.write_page = fsl_elbc_write_page;
+ chip->ecc.write_subpage = fsl_elbc_write_subpage;

/* If CS Base Register selects full hardware ECC then use it */
if ((in_be32(&lbc->bank[priv->bank].br) & BR_DECC) ==
diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c
index 81b80af55872..8c4eb287bbdb 100644
--- a/drivers/mtd/nand/omap2.c
+++ b/drivers/mtd/nand/omap2.c
@@ -1463,7 +1463,7 @@ static int omap_elm_correct_data(struct mtd_info *mtd, u_char *data,

/* Check if any error reported */
if (!is_error_reported)
- return 0;
+ return stat;

/* Decode BCH error using ELM module */
elm_decode_bch_error_page(info->elm_dev, ecc_vec, err_vec);
diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c
index 36be3208786a..429f079507e7 100644
--- a/drivers/net/ethernet/mellanox/mlx4/main.c
+++ b/drivers/net/ethernet/mellanox/mlx4/main.c
@@ -2134,13 +2134,8 @@ static int __mlx4_init_one(struct pci_dev *pdev, int pci_dev_data)
/* Allow large DMA segments, up to the firmware limit of 1 GB */
dma_set_max_seg_size(&pdev->dev, 1024 * 1024 * 1024);

- priv = kzalloc(sizeof(*priv), GFP_KERNEL);
- if (!priv) {
- err = -ENOMEM;
- goto err_release_regions;
- }
-
- dev = &priv->dev;
+ dev = pci_get_drvdata(pdev);
+ priv = mlx4_priv(dev);
dev->pdev = pdev;
INIT_LIST_HEAD(&priv->ctx_list);
spin_lock_init(&priv->ctx_lock);
@@ -2305,8 +2300,7 @@ slave_start:
mlx4_sense_init(dev);
mlx4_start_sense(dev);

- priv->pci_dev_data = pci_dev_data;
- pci_set_drvdata(pdev, dev);
+ priv->removed = 0;

return 0;

@@ -2372,84 +2366,110 @@ err_disable_pdev:

static int mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
{
+ struct mlx4_priv *priv;
+ struct mlx4_dev *dev;
+
printk_once(KERN_INFO "%s", mlx4_version);

+ priv = kzalloc(sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ dev = &priv->dev;
+ pci_set_drvdata(pdev, dev);
+ priv->pci_dev_data = id->driver_data;
+
return __mlx4_init_one(pdev, id->driver_data);
}

-static void mlx4_remove_one(struct pci_dev *pdev)
+static void __mlx4_remove_one(struct pci_dev *pdev)
{
struct mlx4_dev *dev = pci_get_drvdata(pdev);
struct mlx4_priv *priv = mlx4_priv(dev);
+ int pci_dev_data;
int p;

- if (dev) {
- /* in SRIOV it is not allowed to unload the pf's
- * driver while there are alive vf's */
- if (mlx4_is_master(dev)) {
- if (mlx4_how_many_lives_vf(dev))
- printk(KERN_ERR "Removing PF when there are assigned VF's !!!\n");
- }
- mlx4_stop_sense(dev);
- mlx4_unregister_device(dev);
+ if (priv->removed)
+ return;

- for (p = 1; p <= dev->caps.num_ports; p++) {
- mlx4_cleanup_port_info(&priv->port[p]);
- mlx4_CLOSE_PORT(dev, p);
- }
+ pci_dev_data = priv->pci_dev_data;

- if (mlx4_is_master(dev))
- mlx4_free_resource_tracker(dev,
- RES_TR_FREE_SLAVES_ONLY);
-
- mlx4_cleanup_counters_table(dev);
- mlx4_cleanup_mcg_table(dev);
- mlx4_cleanup_qp_table(dev);
- mlx4_cleanup_srq_table(dev);
- mlx4_cleanup_cq_table(dev);
- mlx4_cmd_use_polling(dev);
- mlx4_cleanup_eq_table(dev);
- mlx4_cleanup_mr_table(dev);
- mlx4_cleanup_xrcd_table(dev);
- mlx4_cleanup_pd_table(dev);
+ /* in SRIOV it is not allowed to unload the pf's
+ * driver while there are alive vf's */
+ if (mlx4_is_master(dev)) {
+ if (mlx4_how_many_lives_vf(dev))
+ printk(KERN_ERR "Removing PF when there are assigned VF's !!!\n");
+ }
+ mlx4_stop_sense(dev);
+ mlx4_unregister_device(dev);

- if (mlx4_is_master(dev))
- mlx4_free_resource_tracker(dev,
- RES_TR_FREE_STRUCTS_ONLY);
-
- iounmap(priv->kar);
- mlx4_uar_free(dev, &priv->driver_uar);
- mlx4_cleanup_uar_table(dev);
- if (!mlx4_is_slave(dev))
- mlx4_clear_steering(dev);
- mlx4_free_eq_table(dev);
- if (mlx4_is_master(dev))
- mlx4_multi_func_cleanup(dev);
- mlx4_close_hca(dev);
- if (mlx4_is_slave(dev))
- mlx4_multi_func_cleanup(dev);
- mlx4_cmd_cleanup(dev);
-
- if (dev->flags & MLX4_FLAG_MSI_X)
- pci_disable_msix(pdev);
- if (dev->flags & MLX4_FLAG_SRIOV) {
- mlx4_warn(dev, "Disabling SR-IOV\n");
- pci_disable_sriov(pdev);
- }
+ for (p = 1; p <= dev->caps.num_ports; p++) {
+ mlx4_cleanup_port_info(&priv->port[p]);
+ mlx4_CLOSE_PORT(dev, p);
+ }
+
+ if (mlx4_is_master(dev))
+ mlx4_free_resource_tracker(dev,
+ RES_TR_FREE_SLAVES_ONLY);
+
+ mlx4_cleanup_counters_table(dev);
+ mlx4_cleanup_qp_table(dev);
+ mlx4_cleanup_srq_table(dev);
+ mlx4_cleanup_cq_table(dev);
+ mlx4_cmd_use_polling(dev);
+ mlx4_cleanup_eq_table(dev);
+ mlx4_cleanup_mcg_table(dev);
+ mlx4_cleanup_mr_table(dev);
+ mlx4_cleanup_xrcd_table(dev);
+ mlx4_cleanup_pd_table(dev);

- if (!mlx4_is_slave(dev))
- mlx4_free_ownership(dev);
+ if (mlx4_is_master(dev))
+ mlx4_free_resource_tracker(dev,
+ RES_TR_FREE_STRUCTS_ONLY);

- kfree(dev->caps.qp0_tunnel);
- kfree(dev->caps.qp0_proxy);
- kfree(dev->caps.qp1_tunnel);
- kfree(dev->caps.qp1_proxy);
+ iounmap(priv->kar);
+ mlx4_uar_free(dev, &priv->driver_uar);
+ mlx4_cleanup_uar_table(dev);
+ if (!mlx4_is_slave(dev))
+ mlx4_clear_steering(dev);
+ mlx4_free_eq_table(dev);
+ if (mlx4_is_master(dev))
+ mlx4_multi_func_cleanup(dev);
+ mlx4_close_hca(dev);
+ if (mlx4_is_slave(dev))
+ mlx4_multi_func_cleanup(dev);
+ mlx4_cmd_cleanup(dev);

- kfree(priv);
- pci_release_regions(pdev);
- pci_disable_device(pdev);
- pci_set_drvdata(pdev, NULL);
+ if (dev->flags & MLX4_FLAG_MSI_X)
+ pci_disable_msix(pdev);
+ if (dev->flags & MLX4_FLAG_SRIOV) {
+ mlx4_warn(dev, "Disabling SR-IOV\n");
+ pci_disable_sriov(pdev);
}
+
+ if (!mlx4_is_slave(dev))
+ mlx4_free_ownership(dev);
+
+ kfree(dev->caps.qp0_tunnel);
+ kfree(dev->caps.qp0_proxy);
+ kfree(dev->caps.qp1_tunnel);
+ kfree(dev->caps.qp1_proxy);
+
+ pci_release_regions(pdev);
+ pci_disable_device(pdev);
+ memset(priv, 0, sizeof(*priv));
+ priv->pci_dev_data = pci_dev_data;
+ priv->removed = 1;
+}
+
+static void mlx4_remove_one(struct pci_dev *pdev)
+{
+ struct mlx4_dev *dev = pci_get_drvdata(pdev);
+ struct mlx4_priv *priv = mlx4_priv(dev);
+
+ __mlx4_remove_one(pdev);
+ kfree(priv);
+ pci_set_drvdata(pdev, NULL);
}

int mlx4_restart_one(struct pci_dev *pdev)
@@ -2459,7 +2479,7 @@ int mlx4_restart_one(struct pci_dev *pdev)
int pci_dev_data;

pci_dev_data = priv->pci_dev_data;
- mlx4_remove_one(pdev);
+ __mlx4_remove_one(pdev);
return __mlx4_init_one(pdev, pci_dev_data);
}

@@ -2514,7 +2534,7 @@ MODULE_DEVICE_TABLE(pci, mlx4_pci_table);
static pci_ers_result_t mlx4_pci_err_detected(struct pci_dev *pdev,
pci_channel_state_t state)
{
- mlx4_remove_one(pdev);
+ __mlx4_remove_one(pdev);

return state == pci_channel_io_perm_failure ?
PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_NEED_RESET;
@@ -2522,7 +2542,11 @@ static pci_ers_result_t mlx4_pci_err_detected(struct pci_dev *pdev,

static pci_ers_result_t mlx4_pci_slot_reset(struct pci_dev *pdev)
{
- int ret = __mlx4_init_one(pdev, 0);
+ struct mlx4_dev *dev = pci_get_drvdata(pdev);
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ int ret;
+
+ ret = __mlx4_init_one(pdev, priv->pci_dev_data);

return ret ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED;
}
diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4.h b/drivers/net/ethernet/mellanox/mlx4/mlx4.h
index 17d9277e33ef..19e7fc004588 100644
--- a/drivers/net/ethernet/mellanox/mlx4/mlx4.h
+++ b/drivers/net/ethernet/mellanox/mlx4/mlx4.h
@@ -763,6 +763,7 @@ struct mlx4_priv {
spinlock_t ctx_lock;

int pci_dev_data;
+ int removed;

struct list_head pgdir_list;
struct mutex pgdir_mutex;
diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c
index e64fb8bc3e97..123c37f4f8d5 100644
--- a/drivers/net/macvlan.c
+++ b/drivers/net/macvlan.c
@@ -986,7 +986,6 @@ static int macvlan_device_event(struct notifier_block *unused,
list_for_each_entry_safe(vlan, next, &port->vlans, list)
vlan->dev->rtnl_link_ops->dellink(vlan->dev, &list_kill);
unregister_netdevice_many(&list_kill);
- list_del(&list_kill);
break;
case NETDEV_PRE_TYPE_CHANGE:
/* Forbid underlaying device to change its type. */
diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
index 8aa35403ca5e..ffa1a399e871 100644
--- a/drivers/net/team/team.c
+++ b/drivers/net/team/team.c
@@ -1562,6 +1562,7 @@ static int team_change_mtu(struct net_device *dev, int new_mtu)
* to traverse list in reverse under rcu_read_lock
*/
mutex_lock(&team->lock);
+ team->port_mtu_change_allowed = true;
list_for_each_entry(port, &team->port_list, list) {
err = dev_set_mtu(port->dev, new_mtu);
if (err) {
@@ -1570,6 +1571,7 @@ static int team_change_mtu(struct net_device *dev, int new_mtu)
goto unwind;
}
}
+ team->port_mtu_change_allowed = false;
mutex_unlock(&team->lock);

dev->mtu = new_mtu;
@@ -1579,6 +1581,7 @@ static int team_change_mtu(struct net_device *dev, int new_mtu)
unwind:
list_for_each_entry_continue_reverse(port, &team->port_list, list)
dev_set_mtu(port->dev, dev->mtu);
+ team->port_mtu_change_allowed = false;
mutex_unlock(&team->lock);

return err;
@@ -2698,7 +2701,9 @@ static int team_device_event(struct notifier_block *unused,
break;
case NETDEV_CHANGEMTU:
/* Forbid to change mtu of underlaying device */
- return NOTIFY_BAD;
+ if (!port->team->port_mtu_change_allowed)
+ return NOTIFY_BAD;
+ break;
case NETDEV_PRE_TYPE_CHANGE:
/* Forbid to change type of underlaying device */
return NOTIFY_BAD;
diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c
index 7be4860ccfd7..6fb0082b3308 100644
--- a/drivers/net/usb/qmi_wwan.c
+++ b/drivers/net/usb/qmi_wwan.c
@@ -739,7 +739,12 @@ static const struct usb_device_id products[] = {
{QMI_FIXED_INTF(0x2357, 0x9000, 4)}, /* TP-LINK MA260 */
{QMI_FIXED_INTF(0x1bc7, 0x1200, 5)}, /* Telit LE920 */
{QMI_FIXED_INTF(0x1bc7, 0x1201, 2)}, /* Telit LE920 */
- {QMI_FIXED_INTF(0x0b3c, 0xc005, 6)}, /* Olivetti Olicard 200 */
+ {QMI_FIXED_INTF(0x0b3c, 0xc000, 4)}, /* Olivetti Olicard 100 */
+ {QMI_FIXED_INTF(0x0b3c, 0xc001, 4)}, /* Olivetti Olicard 120 */
+ {QMI_FIXED_INTF(0x0b3c, 0xc002, 4)}, /* Olivetti Olicard 140 */
+ {QMI_FIXED_INTF(0x0b3c, 0xc004, 6)}, /* Olivetti Olicard 155 */
+ {QMI_FIXED_INTF(0x0b3c, 0xc005, 6)}, /* Olivetti Olicard 200 */
+ {QMI_FIXED_INTF(0x0b3c, 0xc00a, 6)}, /* Olivetti Olicard 160 */
{QMI_FIXED_INTF(0x0b3c, 0xc00b, 4)}, /* Olivetti Olicard 500 */
{QMI_FIXED_INTF(0x1e2d, 0x0060, 4)}, /* Cinterion PLxx */
{QMI_FIXED_INTF(0x1e2d, 0x0053, 4)}, /* Cinterion PHxx,PXxx */
diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index 116810f9ca35..80bd392c1d84 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -1476,7 +1476,7 @@ static void vxlan_setup(struct net_device *dev)

eth_hw_addr_random(dev);
ether_setup(dev);
- dev->hard_header_len = ETH_HLEN + VXLAN_HEADROOM;
+ dev->needed_headroom = ETH_HLEN + VXLAN_HEADROOM;

dev->netdev_ops = &vxlan_netdev_ops;
dev->destructor = free_netdev;
@@ -1720,7 +1720,7 @@ static int vxlan_newlink(struct net *net, struct net_device *dev,
dev->mtu = lowerdev->mtu - VXLAN_HEADROOM;

/* update header length based on lower device */
- dev->hard_header_len = lowerdev->hard_header_len +
+ dev->needed_headroom = lowerdev->hard_header_len +
VXLAN_HEADROOM;
}

diff --git a/drivers/net/wireless/iwlwifi/pcie/trans.c b/drivers/net/wireless/iwlwifi/pcie/trans.c
index 6c61ee58caa9..8534fce2ae80 100644
--- a/drivers/net/wireless/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/iwlwifi/pcie/trans.c
@@ -345,6 +345,7 @@ static int iwl_pcie_prepare_card_hw(struct iwl_trans *trans)
{
int ret;
int t = 0;
+ int iter;

IWL_DEBUG_INFO(trans, "iwl_trans_prepare_card_hw enter\n");

@@ -353,18 +354,23 @@ static int iwl_pcie_prepare_card_hw(struct iwl_trans *trans)
if (ret >= 0)
return 0;

- /* If HW is not ready, prepare the conditions to check again */
- iwl_set_bit(trans, CSR_HW_IF_CONFIG_REG,
- CSR_HW_IF_CONFIG_REG_PREPARE);
+ for (iter = 0; iter < 10; iter++) {
+ /* If HW is not ready, prepare the conditions to check again */
+ iwl_set_bit(trans, CSR_HW_IF_CONFIG_REG,
+ CSR_HW_IF_CONFIG_REG_PREPARE);
+
+ do {
+ ret = iwl_pcie_set_hw_ready(trans);
+ if (ret >= 0)
+ return 0;

- do {
- ret = iwl_pcie_set_hw_ready(trans);
- if (ret >= 0)
- return 0;
+ usleep_range(200, 1000);
+ t += 200;
+ } while (t < 150000);
+ msleep(25);
+ }

- usleep_range(200, 1000);
- t += 200;
- } while (t < 150000);
+ IWL_DEBUG_INFO(trans, "got NIC after %d iterations\n", iter);

return ret;
}
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index e85d23044ae0..176fb76ef4e2 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -2953,6 +2953,7 @@ static void disable_igfx_irq(struct pci_dev *dev)
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0102, disable_igfx_irq);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x010a, disable_igfx_irq);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0152, disable_igfx_irq);

/*
* Some devices may pass our check in pci_intx_mask_supported if
diff --git a/drivers/rtc/rtc-at91rm9200.c b/drivers/rtc/rtc-at91rm9200.c
index b86eec3ffba8..8ebf09f91fcf 100644
--- a/drivers/rtc/rtc-at91rm9200.c
+++ b/drivers/rtc/rtc-at91rm9200.c
@@ -48,6 +48,7 @@ struct at91_rtc_config {

static const struct at91_rtc_config *at91_rtc_config;
static DECLARE_COMPLETION(at91_rtc_updated);
+static DECLARE_COMPLETION(at91_rtc_upd_rdy);
static unsigned int at91_alarm_year = AT91_RTC_EPOCH;
static void __iomem *at91_rtc_regs;
static int irq;
@@ -161,6 +162,8 @@ static int at91_rtc_settime(struct device *dev, struct rtc_time *tm)
1900 + tm->tm_year, tm->tm_mon, tm->tm_mday,
tm->tm_hour, tm->tm_min, tm->tm_sec);

+ wait_for_completion(&at91_rtc_upd_rdy);
+
/* Stop Time/Calendar from counting */
cr = at91_rtc_read(AT91_RTC_CR);
at91_rtc_write(AT91_RTC_CR, cr | AT91_RTC_UPDCAL | AT91_RTC_UPDTIM);
@@ -183,7 +186,9 @@ static int at91_rtc_settime(struct device *dev, struct rtc_time *tm)

/* Restart Time/Calendar */
cr = at91_rtc_read(AT91_RTC_CR);
+ at91_rtc_write(AT91_RTC_SCCR, AT91_RTC_SECEV);
at91_rtc_write(AT91_RTC_CR, cr & ~(AT91_RTC_UPDCAL | AT91_RTC_UPDTIM));
+ at91_rtc_write_ier(AT91_RTC_SECEV);

return 0;
}
@@ -290,8 +295,10 @@ static irqreturn_t at91_rtc_interrupt(int irq, void *dev_id)
if (rtsr) { /* this interrupt is shared! Is it ours? */
if (rtsr & AT91_RTC_ALARM)
events |= (RTC_AF | RTC_IRQF);
- if (rtsr & AT91_RTC_SECEV)
- events |= (RTC_UF | RTC_IRQF);
+ if (rtsr & AT91_RTC_SECEV) {
+ complete(&at91_rtc_upd_rdy);
+ at91_rtc_write_idr(AT91_RTC_SECEV);
+ }
if (rtsr & AT91_RTC_ACKUPD)
complete(&at91_rtc_updated);

@@ -414,6 +421,11 @@ static int __init at91_rtc_probe(struct platform_device *pdev)
}
platform_set_drvdata(pdev, rtc);

+ /* enable SECEV interrupt in order to initialize at91_rtc_upd_rdy
+ * completion.
+ */
+ at91_rtc_write_ier(AT91_RTC_SECEV);
+
dev_info(&pdev->dev, "AT91 Real Time Clock driver.\n");
return 0;

diff --git a/drivers/scsi/scsi_netlink.c b/drivers/scsi/scsi_netlink.c
index fe30ea94ffe6..109802f776ed 100644
--- a/drivers/scsi/scsi_netlink.c
+++ b/drivers/scsi/scsi_netlink.c
@@ -77,7 +77,7 @@ scsi_nl_rcv_msg(struct sk_buff *skb)
goto next_msg;
}

- if (!capable(CAP_SYS_ADMIN)) {
+ if (!netlink_capable(skb, CAP_SYS_ADMIN)) {
err = -EPERM;
goto next_msg;
}
diff --git a/drivers/staging/iio/light/tsl2x7x_core.c b/drivers/staging/iio/light/tsl2x7x_core.c
index c99f890cc6c6..64c73adfa3b0 100644
--- a/drivers/staging/iio/light/tsl2x7x_core.c
+++ b/drivers/staging/iio/light/tsl2x7x_core.c
@@ -672,9 +672,13 @@ static int tsl2x7x_chip_on(struct iio_dev *indio_dev)
chip->tsl2x7x_config[TSL2X7X_PRX_COUNT] =
chip->tsl2x7x_settings.prox_pulse_count;
chip->tsl2x7x_config[TSL2X7X_PRX_MINTHRESHLO] =
- chip->tsl2x7x_settings.prox_thres_low;
+ (chip->tsl2x7x_settings.prox_thres_low) & 0xFF;
+ chip->tsl2x7x_config[TSL2X7X_PRX_MINTHRESHHI] =
+ (chip->tsl2x7x_settings.prox_thres_low >> 8) & 0xFF;
chip->tsl2x7x_config[TSL2X7X_PRX_MAXTHRESHLO] =
- chip->tsl2x7x_settings.prox_thres_high;
+ (chip->tsl2x7x_settings.prox_thres_high) & 0xFF;
+ chip->tsl2x7x_config[TSL2X7X_PRX_MAXTHRESHHI] =
+ (chip->tsl2x7x_settings.prox_thres_high >> 8) & 0xFF;

/* and make sure we're not already on */
if (chip->tsl2x7x_chip_status == TSL2X7X_CHIP_WORKING) {
diff --git a/drivers/staging/tidspbridge/core/dsp-clock.c b/drivers/staging/tidspbridge/core/dsp-clock.c
index 2f084e181d39..a1aca4416ca7 100644
--- a/drivers/staging/tidspbridge/core/dsp-clock.c
+++ b/drivers/staging/tidspbridge/core/dsp-clock.c
@@ -226,7 +226,7 @@ int dsp_clk_enable(enum dsp_clk_id clk_id)
case GPT_CLK:
status = omap_dm_timer_start(timer[clk_id - 1]);
break;
-#ifdef CONFIG_OMAP_MCBSP
+#ifdef CONFIG_SND_OMAP_SOC_MCBSP
case MCBSP_CLK:
omap_mcbsp_request(MCBSP_ID(clk_id));
omap2_mcbsp_set_clks_src(MCBSP_ID(clk_id), MCBSP_CLKS_PAD_SRC);
@@ -302,7 +302,7 @@ int dsp_clk_disable(enum dsp_clk_id clk_id)
case GPT_CLK:
status = omap_dm_timer_stop(timer[clk_id - 1]);
break;
-#ifdef CONFIG_OMAP_MCBSP
+#ifdef CONFIG_SND_OMAP_SOC_MCBSP
case MCBSP_CLK:
omap2_mcbsp_set_clks_src(MCBSP_ID(clk_id), MCBSP_CLKS_PRCM_SRC);
omap_mcbsp_free(MCBSP_ID(clk_id));
diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index 2681183abca6..a5825ea2488e 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -3390,7 +3390,9 @@ static bool iscsit_check_inaddr_any(struct iscsi_np *np)

#define SENDTARGETS_BUF_LIMIT 32768U

-static int iscsit_build_sendtargets_response(struct iscsi_cmd *cmd)
+static int
+iscsit_build_sendtargets_response(struct iscsi_cmd *cmd,
+ enum iscsit_transport_type network_transport)
{
char *payload = NULL;
struct iscsi_conn *conn = cmd->conn;
@@ -3462,6 +3464,9 @@ static int iscsit_build_sendtargets_response(struct iscsi_cmd *cmd)
struct iscsi_np *np = tpg_np->tpg_np;
bool inaddr_any = iscsit_check_inaddr_any(np);

+ if (np->np_network_transport != network_transport)
+ continue;
+
len = sprintf(buf, "TargetAddress="
"%s%s%s:%hu,%hu",
(np->np_sockaddr.ss_family == AF_INET6) ?
@@ -3501,11 +3506,12 @@ eob:

int
iscsit_build_text_rsp(struct iscsi_cmd *cmd, struct iscsi_conn *conn,
- struct iscsi_text_rsp *hdr)
+ struct iscsi_text_rsp *hdr,
+ enum iscsit_transport_type network_transport)
{
int text_length, padding;

- text_length = iscsit_build_sendtargets_response(cmd);
+ text_length = iscsit_build_sendtargets_response(cmd, network_transport);
if (text_length < 0)
return text_length;

@@ -3543,7 +3549,7 @@ static int iscsit_send_text_rsp(
u32 tx_size = 0;
int text_length, iov_count = 0, rc;

- rc = iscsit_build_text_rsp(cmd, conn, hdr);
+ rc = iscsit_build_text_rsp(cmd, conn, hdr, ISCSI_TCP);
if (rc < 0)
return rc;

@@ -4217,8 +4223,6 @@ int iscsit_close_connection(
if (conn->conn_transport->iscsit_wait_conn)
conn->conn_transport->iscsit_wait_conn(conn);

- iscsit_free_queue_reqs_for_conn(conn);
-
/*
* During Connection recovery drop unacknowledged out of order
* commands for this connection, and prepare the other commands
@@ -4235,6 +4239,7 @@ int iscsit_close_connection(
iscsit_clear_ooo_cmdsns_for_conn(conn);
iscsit_release_commands_from_conn(conn);
}
+ iscsit_free_queue_reqs_for_conn(conn);

/*
* Handle decrementing session or connection usage count if
diff --git a/drivers/target/iscsi/iscsi_target_auth.c b/drivers/target/iscsi/iscsi_target_auth.c
index 130a1e4f96a1..3c9a8dfd1c2e 100644
--- a/drivers/target/iscsi/iscsi_target_auth.c
+++ b/drivers/target/iscsi/iscsi_target_auth.c
@@ -316,6 +316,16 @@ static int chap_server_compute_md5(
goto out;
}
/*
+ * During mutual authentication, the CHAP_C generated by the
+ * initiator must not match the original CHAP_C generated by
+ * the target.
+ */
+ if (!memcmp(challenge_binhex, chap->challenge, CHAP_CHALLENGE_LENGTH)) {
+ pr_err("initiator CHAP_C matches target CHAP_C, failing"
+ " login attempt\n");
+ goto out;
+ }
+ /*
* Generate CHAP_N and CHAP_R for mutual authentication.
*/
tfm = crypto_alloc_hash("md5", 0, CRYPTO_ALG_ASYNC);
diff --git a/drivers/target/target_core_rd.c b/drivers/target/target_core_rd.c
index 51127d15d5c5..d71cdbed413b 100644
--- a/drivers/target/target_core_rd.c
+++ b/drivers/target/target_core_rd.c
@@ -179,7 +179,7 @@ static int rd_build_device_space(struct rd_dev *rd_dev)
- 1;

for (j = 0; j < sg_per_table; j++) {
- pg = alloc_pages(GFP_KERNEL, 0);
+ pg = alloc_pages(GFP_KERNEL | __GFP_ZERO, 0);
if (!pg) {
pr_err("Unable to allocate scatterlist"
" pages for struct rd_dev_sg_table\n");
diff --git a/drivers/target/target_core_sbc.c b/drivers/target/target_core_sbc.c
index 8a462773d0c8..0e1cdfa4c454 100644
--- a/drivers/target/target_core_sbc.c
+++ b/drivers/target/target_core_sbc.c
@@ -79,7 +79,7 @@ sbc_emulate_readcapacity(struct se_cmd *cmd)
transport_kunmap_data_sg(cmd);
}

- target_complete_cmd(cmd, GOOD);
+ target_complete_cmd_with_length(cmd, GOOD, 8);
return 0;
}

@@ -117,7 +117,7 @@ sbc_emulate_readcapacity_16(struct se_cmd *cmd)
transport_kunmap_data_sg(cmd);
}

- target_complete_cmd(cmd, GOOD);
+ target_complete_cmd_with_length(cmd, GOOD, 32);
return 0;
}

diff --git a/drivers/target/target_core_spc.c b/drivers/target/target_core_spc.c
index 9fabbf7214cd..34254b2ec466 100644
--- a/drivers/target/target_core_spc.c
+++ b/drivers/target/target_core_spc.c
@@ -628,6 +628,7 @@ spc_emulate_inquiry(struct se_cmd *cmd)
unsigned char buf[SE_INQUIRY_BUF];
sense_reason_t ret;
int p;
+ int len = 0;

memset(buf, 0, SE_INQUIRY_BUF);

@@ -645,6 +646,7 @@ spc_emulate_inquiry(struct se_cmd *cmd)
}

ret = spc_emulate_inquiry_std(cmd, buf);
+ len = buf[4] + 5;
goto out;
}

@@ -652,6 +654,7 @@ spc_emulate_inquiry(struct se_cmd *cmd)
if (cdb[2] == evpd_handlers[p].page) {
buf[1] = cdb[2];
ret = evpd_handlers[p].emulate(cmd, buf);
+ len = get_unaligned_be16(&buf[2]) + 4;
goto out;
}
}
@@ -667,7 +670,7 @@ out:
}

if (!ret)
- target_complete_cmd(cmd, GOOD);
+ target_complete_cmd_with_length(cmd, GOOD, len);
return ret;
}

@@ -985,7 +988,7 @@ set_length:
transport_kunmap_data_sg(cmd);
}

- target_complete_cmd(cmd, GOOD);
+ target_complete_cmd_with_length(cmd, GOOD, length);
return 0;
}

@@ -1162,7 +1165,7 @@ done:
buf[3] = (lun_count & 0xff);
transport_kunmap_data_sg(cmd);

- target_complete_cmd(cmd, GOOD);
+ target_complete_cmd_with_length(cmd, GOOD, 8 + lun_count * 8);
return 0;
}
EXPORT_SYMBOL(spc_emulate_report_luns);
diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index 2050727dc954..4d4299533982 100644
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -495,7 +495,7 @@ static int transport_cmd_check_stop(struct se_cmd *cmd, bool remove_from_lists,

spin_unlock_irqrestore(&cmd->t_state_lock, flags);

- complete(&cmd->t_transport_stop_comp);
+ complete_all(&cmd->t_transport_stop_comp);
return 1;
}

@@ -617,7 +617,7 @@ void target_complete_cmd(struct se_cmd *cmd, u8 scsi_status)
if (cmd->transport_state & CMD_T_ABORTED &&
cmd->transport_state & CMD_T_STOP) {
spin_unlock_irqrestore(&cmd->t_state_lock, flags);
- complete(&cmd->t_transport_stop_comp);
+ complete_all(&cmd->t_transport_stop_comp);
return;
} else if (cmd->transport_state & CMD_T_FAILED) {
INIT_WORK(&cmd->work, target_complete_failure_work);
@@ -633,6 +633,23 @@ void target_complete_cmd(struct se_cmd *cmd, u8 scsi_status)
}
EXPORT_SYMBOL(target_complete_cmd);

+void target_complete_cmd_with_length(struct se_cmd *cmd, u8 scsi_status, int length)
+{
+ if (scsi_status == SAM_STAT_GOOD && length < cmd->data_length) {
+ if (cmd->se_cmd_flags & SCF_UNDERFLOW_BIT) {
+ cmd->residual_count += cmd->data_length - length;
+ } else {
+ cmd->se_cmd_flags |= SCF_UNDERFLOW_BIT;
+ cmd->residual_count = cmd->data_length - length;
+ }
+
+ cmd->data_length = length;
+ }
+
+ target_complete_cmd(cmd, scsi_status);
+}
+EXPORT_SYMBOL(target_complete_cmd_with_length);
+
static void target_add_to_state_list(struct se_cmd *cmd)
{
struct se_device *dev = cmd->se_dev;
@@ -1684,7 +1701,7 @@ void target_execute_cmd(struct se_cmd *cmd)
cmd->se_tfo->get_task_tag(cmd));

spin_unlock_irq(&cmd->t_state_lock);
- complete(&cmd->t_transport_stop_comp);
+ complete_all(&cmd->t_transport_stop_comp);
return;
}

@@ -2871,6 +2888,12 @@ static void target_tmr_work(struct work_struct *work)
int transport_generic_handle_tmr(
struct se_cmd *cmd)
{
+ unsigned long flags;
+
+ spin_lock_irqsave(&cmd->t_state_lock, flags);
+ cmd->transport_state |= CMD_T_ACTIVE;
+ spin_unlock_irqrestore(&cmd->t_state_lock, flags);
+
INIT_WORK(&cmd->work, target_tmr_work);
queue_work(cmd->se_dev->tmr_wq, &cmd->work);
return 0;
diff --git a/drivers/tty/serial/8250/8250_dw.c b/drivers/tty/serial/8250/8250_dw.c
index b8cacb850d96..70ecf541b77a 100644
--- a/drivers/tty/serial/8250/8250_dw.c
+++ b/drivers/tty/serial/8250/8250_dw.c
@@ -56,28 +56,60 @@

struct dw8250_data {
- int last_lcr;
+ int last_mcr;
int line;
struct clk *clk;
u8 usr_reg;
};

+static inline int dw8250_modify_msr(struct uart_port *p, int offset, int value)
+{
+ struct dw8250_data *d = p->private_data;
+
+ /* If reading MSR, report CTS asserted when auto-CTS/RTS enabled */
+ if (offset == UART_MSR && d->last_mcr & UART_MCR_AFE) {
+ value |= UART_MSR_CTS;
+ value &= ~UART_MSR_DCTS;
+ }
+
+ return value;
+}
+
+static void dw8250_force_idle(struct uart_port *p)
+{
+ serial8250_clear_and_reinit_fifos(container_of
+ (p, struct uart_8250_port, port));
+ (void)p->serial_in(p, UART_RX);
+}
+
static void dw8250_serial_out(struct uart_port *p, int offset, int value)
{
struct dw8250_data *d = p->private_data;

- if (offset == UART_LCR)
- d->last_lcr = value;
+ if (offset == UART_MCR)
+ d->last_mcr = value;

- offset <<= p->regshift;
- writeb(value, p->membase + offset);
+ writeb(value, p->membase + (offset << p->regshift));
+
+ /* Make sure LCR write wasn't ignored */
+ if (offset == UART_LCR) {
+ int tries = 1000;
+ while (tries--) {
+ unsigned int lcr = p->serial_in(p, UART_LCR);
+ if ((value & ~UART_LCR_SPAR) == (lcr & ~UART_LCR_SPAR))
+ return;
+ dw8250_force_idle(p);
+ writeb(value, p->membase + (UART_LCR << p->regshift));
+ }
+ dev_err(p->dev, "Couldn't set LCR to %d\n", value);
+ }
}

static unsigned int dw8250_serial_in(struct uart_port *p, int offset)
{
- offset <<= p->regshift;
+ unsigned int value = readb(p->membase + (offset << p->regshift));

- return readb(p->membase + offset);
+ return dw8250_modify_msr(p, offset, value);
}

/* Read Back (rb) version to ensure register access ording. */
@@ -91,18 +123,30 @@ static void dw8250_serial_out32(struct uart_port *p, int offset, int value)
{
struct dw8250_data *d = p->private_data;

- if (offset == UART_LCR)
- d->last_lcr = value;
+ if (offset == UART_MCR)
+ d->last_mcr = value;
+
+ writel(value, p->membase + (offset << p->regshift));

- offset <<= p->regshift;
- writel(value, p->membase + offset);
+ /* Make sure LCR write wasn't ignored */
+ if (offset == UART_LCR) {
+ int tries = 1000;
+ while (tries--) {
+ unsigned int lcr = p->serial_in(p, UART_LCR);
+ if ((value & ~UART_LCR_SPAR) == (lcr & ~UART_LCR_SPAR))
+ return;
+ dw8250_force_idle(p);
+ writel(value, p->membase + (UART_LCR << p->regshift));
+ }
+ dev_err(p->dev, "Couldn't set LCR to %d\n", value);
+ }
}

static unsigned int dw8250_serial_in32(struct uart_port *p, int offset)
{
- offset <<= p->regshift;
+ unsigned int value = readl(p->membase + (offset << p->regshift));

- return readl(p->membase + offset);
+ return dw8250_modify_msr(p, offset, value);
}

static int dw8250_handle_irq(struct uart_port *p)
@@ -113,9 +157,8 @@ static int dw8250_handle_irq(struct uart_port *p)
if (serial8250_handle_irq(p, iir)) {
return 1;
} else if ((iir & UART_IIR_BUSY) == UART_IIR_BUSY) {
- /* Clear the USR and write the LCR again. */
+ /* Clear the USR */
(void)p->serial_in(p, d->usr_reg);
- p->serial_out(p, UART_LCR, d->last_lcr);

return 1;
}
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 8b8236fd24cf..a72b7f1f6e17 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -122,13 +122,23 @@ static void acm_release_minor(struct acm *acm)
static int acm_ctrl_msg(struct acm *acm, int request, int value,
void *buf, int len)
{
- int retval = usb_control_msg(acm->dev, usb_sndctrlpipe(acm->dev, 0),
+ int retval;
+
+ retval = usb_autopm_get_interface(acm->control);
+ if (retval)
+ return retval;
+
+ retval = usb_control_msg(acm->dev, usb_sndctrlpipe(acm->dev, 0),
request, USB_RT_ACM, value,
acm->control->altsetting[0].desc.bInterfaceNumber,
buf, len, 5000);
+
dev_dbg(&acm->control->dev,
"%s - rq 0x%02x, val %#x, len %#x, result %d\n",
__func__, request, value, len, retval);
+
+ usb_autopm_put_interface(acm->control);
+
return retval < 0 ? retval : 0;
}

@@ -484,6 +494,7 @@ static int acm_port_activate(struct tty_port *port, struct tty_struct *tty)
{
struct acm *acm = container_of(port, struct acm, port);
int retval = -ENODEV;
+ int i;

dev_dbg(&acm->control->dev, "%s\n", __func__);

@@ -532,6 +543,8 @@ static int acm_port_activate(struct tty_port *port, struct tty_struct *tty)
return 0;

error_submit_read_urbs:
+ for (i = 0; i < acm->rx_buflimit; i++)
+ usb_kill_urb(acm->read_urbs[i]);
acm->ctrlout = 0;
acm_set_control(acm, acm->ctrlout);
error_set_control:
@@ -559,21 +572,35 @@ static void acm_port_destruct(struct tty_port *port)
static void acm_port_shutdown(struct tty_port *port)
{
struct acm *acm = container_of(port, struct acm, port);
+ struct urb *urb;
+ struct acm_wb *wb;
int i;
+ int pm_err;

dev_dbg(&acm->control->dev, "%s\n", __func__);

mutex_lock(&acm->mutex);
if (!acm->disconnected) {
- usb_autopm_get_interface(acm->control);
+ pm_err = usb_autopm_get_interface(acm->control);
acm_set_control(acm, acm->ctrlout = 0);
+
+ for (;;) {
+ urb = usb_get_from_anchor(&acm->delayed);
+ if (!urb)
+ break;
+ wb = urb->context;
+ wb->use = 0;
+ usb_autopm_put_interface_async(acm->control);
+ }
+
usb_kill_urb(acm->ctrlurb);
for (i = 0; i < ACM_NW; i++)
usb_kill_urb(acm->wb[i].urb);
for (i = 0; i < acm->rx_buflimit; i++)
usb_kill_urb(acm->read_urbs[i]);
acm->control->needs_remote_wakeup = 0;
- usb_autopm_put_interface(acm->control);
+ if (!pm_err)
+ usb_autopm_put_interface(acm->control);
}
mutex_unlock(&acm->mutex);
}
@@ -632,14 +659,17 @@ static int acm_tty_write(struct tty_struct *tty,
memcpy(wb->buf, buf, count);
wb->len = count;

- usb_autopm_get_interface_async(acm->control);
+ stat = usb_autopm_get_interface_async(acm->control);
+ if (stat) {
+ wb->use = 0;
+ spin_unlock_irqrestore(&acm->write_lock, flags);
+ return stat;
+ }
+
if (acm->susp_count) {
- if (!acm->delayed_wb)
- acm->delayed_wb = wb;
- else
- usb_autopm_put_interface_async(acm->control);
+ usb_anchor_urb(wb->urb, &acm->delayed);
spin_unlock_irqrestore(&acm->write_lock, flags);
- return count; /* A white lie */
+ return count;
}
usb_mark_last_busy(acm->dev);

@@ -1176,6 +1206,7 @@ made_compressed_probe:
acm->bInterval = epread->bInterval;
tty_port_init(&acm->port);
acm->port.ops = &acm_port_ops;
+ init_usb_anchor(&acm->delayed);

buf = usb_alloc_coherent(usb_dev, ctrlsize, GFP_KERNEL, &acm->ctrl_dma);
if (!buf) {
@@ -1420,18 +1451,15 @@ static int acm_suspend(struct usb_interface *intf, pm_message_t message)
struct acm *acm = usb_get_intfdata(intf);
int cnt;

+ spin_lock_irq(&acm->read_lock);
+ spin_lock(&acm->write_lock);
if (PMSG_IS_AUTO(message)) {
- int b;
-
- spin_lock_irq(&acm->write_lock);
- b = acm->transmitting;
- spin_unlock_irq(&acm->write_lock);
- if (b)
+ if (acm->transmitting) {
+ spin_unlock(&acm->write_lock);
+ spin_unlock_irq(&acm->read_lock);
return -EBUSY;
+ }
}
-
- spin_lock_irq(&acm->read_lock);
- spin_lock(&acm->write_lock);
cnt = acm->susp_count++;
spin_unlock(&acm->write_lock);
spin_unlock_irq(&acm->read_lock);
@@ -1439,8 +1467,7 @@ static int acm_suspend(struct usb_interface *intf, pm_message_t message)
if (cnt)
return 0;

- if (test_bit(ASYNCB_INITIALIZED, &acm->port.flags))
- stop_data_traffic(acm);
+ stop_data_traffic(acm);

return 0;
}
@@ -1448,29 +1475,24 @@ static int acm_suspend(struct usb_interface *intf, pm_message_t message)
static int acm_resume(struct usb_interface *intf)
{
struct acm *acm = usb_get_intfdata(intf);
- struct acm_wb *wb;
+ struct urb *urb;
int rv = 0;
- int cnt;

spin_lock_irq(&acm->read_lock);
- acm->susp_count -= 1;
- cnt = acm->susp_count;
- spin_unlock_irq(&acm->read_lock);
+ spin_lock(&acm->write_lock);

- if (cnt)
- return 0;
+ if (--acm->susp_count)
+ goto out;

if (test_bit(ASYNCB_INITIALIZED, &acm->port.flags)) {
- rv = usb_submit_urb(acm->ctrlurb, GFP_NOIO);
-
- spin_lock_irq(&acm->write_lock);
- if (acm->delayed_wb) {
- wb = acm->delayed_wb;
- acm->delayed_wb = NULL;
- spin_unlock_irq(&acm->write_lock);
- acm_start_wb(acm, wb);
- } else {
- spin_unlock_irq(&acm->write_lock);
+ rv = usb_submit_urb(acm->ctrlurb, GFP_ATOMIC);
+
+ for (;;) {
+ urb = usb_get_from_anchor(&acm->delayed);
+ if (!urb)
+ break;
+
+ acm_start_wb(acm, urb->context);
}

/*
@@ -1478,12 +1500,14 @@ static int acm_resume(struct usb_interface *intf)
* do the write path at all cost
*/
if (rv < 0)
- goto err_out;
+ goto out;

- rv = acm_submit_read_urbs(acm, GFP_NOIO);
+ rv = acm_submit_read_urbs(acm, GFP_ATOMIC);
}
+out:
+ spin_unlock(&acm->write_lock);
+ spin_unlock_irq(&acm->read_lock);

-err_out:
return rv;
}

diff --git a/drivers/usb/class/cdc-acm.h b/drivers/usb/class/cdc-acm.h
index 0f76e4af600e..1683ac161cf6 100644
--- a/drivers/usb/class/cdc-acm.h
+++ b/drivers/usb/class/cdc-acm.h
@@ -117,7 +117,7 @@ struct acm {
unsigned int throttled:1; /* actually throttled */
unsigned int throttle_req:1; /* throttle requested */
u8 bInterval;
- struct acm_wb *delayed_wb; /* write queued for a device about to be woken */
+ struct usb_anchor delayed; /* writes queued for a device about to be woken */
};

#define CDC_DATA_INTERFACE_TYPE 0x0a
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 69948ad39837..d868b62c1a16 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -604,6 +604,10 @@ static int __dwc3_gadget_ep_disable(struct dwc3_ep *dep)

dwc3_remove_requests(dwc, dep);

+ /* make sure HW endpoint isn't stalled */
+ if (dep->flags & DWC3_EP_STALL)
+ __dwc3_gadget_ep_set_halt(dep, 0);
+
reg = dwc3_readl(dwc->regs, DWC3_DALEPENA);
reg &= ~DWC3_DALEPENA_EP(dep->number);
dwc3_writel(dwc->regs, DWC3_DALEPENA, reg);
diff --git a/drivers/usb/gadget/inode.c b/drivers/usb/gadget/inode.c
index 570c005062ab..42a30903d4fd 100644
--- a/drivers/usb/gadget/inode.c
+++ b/drivers/usb/gadget/inode.c
@@ -1509,7 +1509,7 @@ gadgetfs_setup (struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl)
}
break;

-#ifndef CONFIG_USB_GADGET_PXA25X
+#ifndef CONFIG_USB_PXA25X
/* PXA automagically handles this request too */
case USB_REQ_GET_CONFIGURATION:
if (ctrl->bRequestType != 0x80)
diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c
index b9848e4d3d44..75c818c164d5 100644
--- a/drivers/usb/host/pci-quirks.c
+++ b/drivers/usb/host/pci-quirks.c
@@ -568,6 +568,14 @@ static const struct dmi_system_id ehci_dmi_nohandoff_table[] = {
DMI_MATCH(DMI_BIOS_VERSION, "Lucid-"),
},
},
+ {
+ /* HASEE E200 */
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "HASEE"),
+ DMI_MATCH(DMI_BOARD_NAME, "E210"),
+ DMI_MATCH(DMI_BIOS_VERSION, "6.00"),
+ },
+ },
{ }
};

@@ -577,9 +585,14 @@ static void ehci_bios_handoff(struct pci_dev *pdev,
{
int try_handoff = 1, tried_handoff = 0;

- /* The Pegatron Lucid tablet sporadically waits for 98 seconds trying
- * the handoff on its unused controller. Skip it. */
- if (pdev->vendor == 0x8086 && pdev->device == 0x283a) {
+ /*
+ * The Pegatron Lucid tablet sporadically waits for 98 seconds trying
+ * the handoff on its unused controller. Skip it.
+ *
+ * The HASEE E200 hangs when the semaphore is set (bugzilla #77021).
+ */
+ if (pdev->vendor == 0x8086 && (pdev->device == 0x283a ||
+ pdev->device == 0x27cc)) {
if (dmi_check_system(ehci_dmi_nohandoff_table))
try_handoff = 0;
}
diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c
index 8b4ca1cb450a..98438b90838f 100644
--- a/drivers/usb/misc/usbtest.c
+++ b/drivers/usb/misc/usbtest.c
@@ -7,9 +7,10 @@
#include <linux/moduleparam.h>
#include <linux/scatterlist.h>
#include <linux/mutex.h>
-
+#include <linux/timer.h>
#include <linux/usb.h>

+#define SIMPLE_IO_TIMEOUT 10000 /* in milliseconds */

/*-------------------------------------------------------------------------*/

@@ -366,6 +367,7 @@ static int simple_io(
int max = urb->transfer_buffer_length;
struct completion completion;
int retval = 0;
+ unsigned long expire;

urb->context = &completion;
while (retval == 0 && iterations-- > 0) {
@@ -378,9 +380,15 @@ static int simple_io(
if (retval != 0)
break;

- /* NOTE: no timeouts; can't be broken out of by interrupt */
- wait_for_completion(&completion);
- retval = urb->status;
+ expire = msecs_to_jiffies(SIMPLE_IO_TIMEOUT);
+ if (!wait_for_completion_timeout(&completion, expire)) {
+ usb_kill_urb(urb);
+ retval = (urb->status == -ENOENT ?
+ -ETIMEDOUT : urb->status);
+ } else {
+ retval = urb->status;
+ }
+
urb->dev = udev;
if (retval == 0 && usb_pipein(urb->pipe))
retval = simple_check_buf(tdev, urb);
@@ -476,6 +484,14 @@ alloc_sglist(int nents, int max, int vary)
return sg;
}

+static void sg_timeout(unsigned long _req)
+{
+ struct usb_sg_request *req = (struct usb_sg_request *) _req;
+
+ req->status = -ETIMEDOUT;
+ usb_sg_cancel(req);
+}
+
static int perform_sglist(
struct usbtest_dev *tdev,
unsigned iterations,
@@ -487,6 +503,9 @@ static int perform_sglist(
{
struct usb_device *udev = testdev_to_usbdev(tdev);
int retval = 0;
+ struct timer_list sg_timer;
+
+ setup_timer_on_stack(&sg_timer, sg_timeout, (unsigned long) req);

while (retval == 0 && iterations-- > 0) {
retval = usb_sg_init(req, udev, pipe,
@@ -497,7 +516,10 @@ static int perform_sglist(

if (retval)
break;
+ mod_timer(&sg_timer, jiffies +
+ msecs_to_jiffies(SIMPLE_IO_TIMEOUT));
usb_sg_wait(req);
+ del_timer_sync(&sg_timer);
retval = req->status;

/* FIXME check resulting data pattern */
@@ -1149,6 +1171,11 @@ static int unlink1(struct usbtest_dev *dev, int pipe, int size, int async)
urb->context = &completion;
urb->complete = unlink1_callback;

+ if (usb_pipeout(urb->pipe)) {
+ simple_fill_buf(urb);
+ urb->transfer_flags |= URB_ZERO_PACKET;
+ }
+
/* keep the endpoint busy. there are lots of hc/hcd-internal
* states, and testing should get to all of them over time.
*
@@ -1279,6 +1306,11 @@ static int unlink_queued(struct usbtest_dev *dev, int pipe, unsigned num,
unlink_queued_callback, &ctx);
ctx.urbs[i]->transfer_dma = buf_dma;
ctx.urbs[i]->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
+
+ if (usb_pipeout(ctx.urbs[i]->pipe)) {
+ simple_fill_buf(ctx.urbs[i]);
+ ctx.urbs[i]->transfer_flags |= URB_ZERO_PACKET;
+ }
}

/* Submit all the URBs and then unlink URBs num - 4 and num - 2. */
diff --git a/drivers/usb/phy/phy-isp1301-omap.c b/drivers/usb/phy/phy-isp1301-omap.c
index ae481afcb3ec..9201feb97e9e 100644
--- a/drivers/usb/phy/phy-isp1301-omap.c
+++ b/drivers/usb/phy/phy-isp1301-omap.c
@@ -1299,7 +1299,7 @@ isp1301_set_host(struct usb_otg *otg, struct usb_bus *host)
return isp1301_otg_enable(isp);
return 0;

-#elif !defined(CONFIG_USB_GADGET_OMAP)
+#elif !IS_ENABLED(CONFIG_USB_OMAP)
// FIXME update its refcount
otg->host = host;

diff --git a/drivers/usb/serial/bus.c b/drivers/usb/serial/bus.c
index f053b302a00d..eef55b53c0b5 100644
--- a/drivers/usb/serial/bus.c
+++ b/drivers/usb/serial/bus.c
@@ -98,13 +98,19 @@ static int usb_serial_device_remove(struct device *dev)
struct usb_serial_port *port;
int retval = 0;
int minor;
+ int autopm_err;

port = to_usb_serial_port(dev);
if (!port)
return -ENODEV;

- /* make sure suspend/resume doesn't race against port_remove */
- usb_autopm_get_interface(port->serial->interface);
+ /*
+ * Make sure suspend/resume doesn't race against port_remove.
+ *
+ * Note that no further runtime PM callbacks will be made if
+ * autopm_get fails.
+ */
+ autopm_err = usb_autopm_get_interface(port->serial->interface);

minor = port->minor;
tty_unregister_device(usb_serial_tty_driver, minor);
@@ -118,7 +124,9 @@ static int usb_serial_device_remove(struct device *dev)
dev_info(dev, "%s converter now disconnected from ttyUSB%d\n",
driver->description, minor);

- usb_autopm_put_interface(port->serial->interface);
+ if (!autopm_err)
+ usb_autopm_put_interface(port->serial->interface);
+
return retval;
}

diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 948a19f0cdf7..70ede84f4f6b 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -1925,6 +1925,7 @@ static int option_send_setup(struct usb_serial_port *port)
struct option_private *priv = intfdata->private;
struct usb_wwan_port_private *portdata;
int val = 0;
+ int res;

portdata = usb_get_serial_port_data(port);

@@ -1933,9 +1934,17 @@ static int option_send_setup(struct usb_serial_port *port)
if (portdata->rts_state)
val |= 0x02;

- return usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
+ res = usb_autopm_get_interface(serial->interface);
+ if (res)
+ return res;
+
+ res = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
0x22, 0x21, val, priv->bInterfaceNumber, NULL,
0, USB_CTRL_SET_TIMEOUT);
+
+ usb_autopm_put_interface(serial->interface);
+
+ return res;
}

MODULE_AUTHOR(DRIVER_AUTHOR);
diff --git a/drivers/usb/serial/qcserial.c b/drivers/usb/serial/qcserial.c
index 6c0a542e8ec1..43d93dbf7d71 100644
--- a/drivers/usb/serial/qcserial.c
+++ b/drivers/usb/serial/qcserial.c
@@ -145,12 +145,33 @@ static const struct usb_device_id id_table[] = {
{USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x901f, 0)}, /* Sierra Wireless EM7355 Device Management */
{USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x901f, 2)}, /* Sierra Wireless EM7355 NMEA */
{USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x901f, 3)}, /* Sierra Wireless EM7355 Modem */
+ {USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x9040, 0)}, /* Sierra Wireless Modem Device Management */
+ {USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x9040, 2)}, /* Sierra Wireless Modem NMEA */
+ {USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x9040, 3)}, /* Sierra Wireless Modem Modem */
{USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x9041, 0)}, /* Sierra Wireless MC7305/MC7355 Device Management */
{USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x9041, 2)}, /* Sierra Wireless MC7305/MC7355 NMEA */
{USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x9041, 3)}, /* Sierra Wireless MC7305/MC7355 Modem */
{USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x9051, 0)}, /* Netgear AirCard 340U Device Management */
{USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x9051, 2)}, /* Netgear AirCard 340U NMEA */
{USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x9051, 3)}, /* Netgear AirCard 340U Modem */
+ {USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x9053, 0)}, /* Sierra Wireless Modem Device Management */
+ {USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x9053, 2)}, /* Sierra Wireless Modem NMEA */
+ {USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x9053, 3)}, /* Sierra Wireless Modem Modem */
+ {USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x9054, 0)}, /* Sierra Wireless Modem Device Management */
+ {USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x9054, 2)}, /* Sierra Wireless Modem NMEA */
+ {USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x9054, 3)}, /* Sierra Wireless Modem Modem */
+ {USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x9055, 0)}, /* Netgear AirCard 341U Device Management */
+ {USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x9055, 2)}, /* Netgear AirCard 341U NMEA */
+ {USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x9055, 3)}, /* Netgear AirCard 341U Modem */
+ {USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x9056, 0)}, /* Sierra Wireless Modem Device Management */
+ {USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x9056, 2)}, /* Sierra Wireless Modem NMEA */
+ {USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x9056, 3)}, /* Sierra Wireless Modem Modem */
+ {USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x9060, 0)}, /* Sierra Wireless Modem Device Management */
+ {USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x9060, 2)}, /* Sierra Wireless Modem NMEA */
+ {USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x9060, 3)}, /* Sierra Wireless Modem Modem */
+ {USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x9061, 0)}, /* Sierra Wireless Modem Device Management */
+ {USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x9061, 2)}, /* Sierra Wireless Modem NMEA */
+ {USB_DEVICE_INTERFACE_NUMBER(0x1199, 0x9061, 3)}, /* Sierra Wireless Modem Modem */
{USB_DEVICE_INTERFACE_NUMBER(0x413c, 0x81a2, 0)}, /* Dell Wireless 5806 Gobi(TM) 4G LTE Mobile Broadband Card Device Management */
{USB_DEVICE_INTERFACE_NUMBER(0x413c, 0x81a2, 2)}, /* Dell Wireless 5806 Gobi(TM) 4G LTE Mobile Broadband Card NMEA */
{USB_DEVICE_INTERFACE_NUMBER(0x413c, 0x81a2, 3)}, /* Dell Wireless 5806 Gobi(TM) 4G LTE Mobile Broadband Card Modem */
diff --git a/drivers/usb/serial/sierra.c b/drivers/usb/serial/sierra.c
index b6910b7ab7e2..d84a3f31ae2d 100644
--- a/drivers/usb/serial/sierra.c
+++ b/drivers/usb/serial/sierra.c
@@ -58,6 +58,7 @@ struct sierra_intf_private {
spinlock_t susp_lock;
unsigned int suspended:1;
int in_flight;
+ unsigned int open_ports;
};

static int sierra_set_power_state(struct usb_device *udev, __u16 swiState)
@@ -767,6 +768,7 @@ static void sierra_close(struct usb_serial_port *port)
struct usb_serial *serial = port->serial;
struct sierra_port_private *portdata;
struct sierra_intf_private *intfdata = port->serial->private;
+ struct urb *urb;

portdata = usb_get_serial_port_data(port);

@@ -775,7 +777,6 @@ static void sierra_close(struct usb_serial_port *port)

mutex_lock(&serial->disc_mutex);
if (!serial->disconnected) {
- serial->interface->needs_remote_wakeup = 0;
/* odd error handling due to pm counters */
if (!usb_autopm_get_interface(serial->interface))
sierra_send_setup(port);
@@ -786,8 +787,22 @@ static void sierra_close(struct usb_serial_port *port)
mutex_unlock(&serial->disc_mutex);
spin_lock_irq(&intfdata->susp_lock);
portdata->opened = 0;
+ if (--intfdata->open_ports == 0)
+ serial->interface->needs_remote_wakeup = 0;
spin_unlock_irq(&intfdata->susp_lock);

+ for (;;) {
+ urb = usb_get_from_anchor(&portdata->delayed);
+ if (!urb)
+ break;
+ kfree(urb->transfer_buffer);
+ usb_free_urb(urb);
+ usb_autopm_put_interface_async(serial->interface);
+ spin_lock(&portdata->lock);
+ portdata->outstanding_urbs--;
+ spin_unlock(&portdata->lock);
+ }
+
sierra_stop_rx_urbs(port);
for (i = 0; i < portdata->num_in_urbs; i++) {
sierra_release_urb(portdata->in_urbs[i]);
@@ -824,23 +839,29 @@ static int sierra_open(struct tty_struct *tty, struct usb_serial_port *port)
usb_sndbulkpipe(serial->dev, endpoint) | USB_DIR_IN);

err = sierra_submit_rx_urbs(port, GFP_KERNEL);
- if (err) {
- /* get rid of everything as in close */
- sierra_close(port);
- /* restore balance for autopm */
- if (!serial->disconnected)
- usb_autopm_put_interface(serial->interface);
- return err;
- }
+ if (err)
+ goto err_submit;
+
sierra_send_setup(port);

- serial->interface->needs_remote_wakeup = 1;
spin_lock_irq(&intfdata->susp_lock);
portdata->opened = 1;
+ if (++intfdata->open_ports == 1)
+ serial->interface->needs_remote_wakeup = 1;
spin_unlock_irq(&intfdata->susp_lock);
usb_autopm_put_interface(serial->interface);

return 0;
+
+err_submit:
+ sierra_stop_rx_urbs(port);
+
+ for (i = 0; i < portdata->num_in_urbs; i++) {
+ sierra_release_urb(portdata->in_urbs[i]);
+ portdata->in_urbs[i] = NULL;
+ }
+
+ return err;
}

@@ -936,6 +957,7 @@ static int sierra_port_remove(struct usb_serial_port *port)
struct sierra_port_private *portdata;

portdata = usb_get_serial_port_data(port);
+ usb_set_serial_port_data(port, NULL);
kfree(portdata);

return 0;
@@ -952,6 +974,8 @@ static void stop_read_write_urbs(struct usb_serial *serial)
for (i = 0; i < serial->num_ports; ++i) {
port = serial->port[i];
portdata = usb_get_serial_port_data(port);
+ if (!portdata)
+ continue;
sierra_stop_rx_urbs(port);
usb_kill_anchored_urbs(&portdata->active);
}
@@ -994,6 +1018,9 @@ static int sierra_resume(struct usb_serial *serial)
port = serial->port[i];
portdata = usb_get_serial_port_data(port);

+ if (!portdata)
+ continue;
+
while ((urb = usb_get_from_anchor(&portdata->delayed))) {
usb_anchor_urb(urb, &portdata->active);
intfdata->in_flight++;
@@ -1001,8 +1028,12 @@ static int sierra_resume(struct usb_serial *serial)
if (err < 0) {
intfdata->in_flight--;
usb_unanchor_urb(urb);
- usb_scuttle_anchored_urbs(&portdata->delayed);
- break;
+ kfree(urb->transfer_buffer);
+ usb_free_urb(urb);
+ spin_lock(&portdata->lock);
+ portdata->outstanding_urbs--;
+ spin_unlock(&portdata->lock);
+ continue;
}
}

diff --git a/drivers/usb/serial/usb_wwan.c b/drivers/usb/serial/usb_wwan.c
index 6fa78361be56..ad5fff4399d7 100644
--- a/drivers/usb/serial/usb_wwan.c
+++ b/drivers/usb/serial/usb_wwan.c
@@ -228,8 +228,10 @@ int usb_wwan_write(struct tty_struct *tty, struct usb_serial_port *port,
usb_pipeendpoint(this_urb->pipe), i);

err = usb_autopm_get_interface_async(port->serial->interface);
- if (err < 0)
+ if (err < 0) {
+ clear_bit(i, &portdata->out_busy);
break;
+ }

/* send the data */
memcpy(this_urb->transfer_buffer, buf, todo);
@@ -386,6 +388,14 @@ int usb_wwan_open(struct tty_struct *tty, struct usb_serial_port *port)
portdata = usb_get_serial_port_data(port);
intfdata = serial->private;

+ if (port->interrupt_in_urb) {
+ err = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
+ if (err) {
+ dev_dbg(&port->dev, "%s: submit int urb failed: %d\n",
+ __func__, err);
+ }
+ }
+
/* Start reading from the IN endpoint */
for (i = 0; i < N_IN_URB; i++) {
urb = portdata->in_urbs[i];
@@ -412,12 +422,26 @@ int usb_wwan_open(struct tty_struct *tty, struct usb_serial_port *port)
}
EXPORT_SYMBOL(usb_wwan_open);

+static void unbusy_queued_urb(struct urb *urb,
+ struct usb_wwan_port_private *portdata)
+{
+ int i;
+
+ for (i = 0; i < N_OUT_URB; i++) {
+ if (urb == portdata->out_urbs[i]) {
+ clear_bit(i, &portdata->out_busy);
+ break;
+ }
+ }
+}
+
void usb_wwan_close(struct usb_serial_port *port)
{
int i;
struct usb_serial *serial = port->serial;
struct usb_wwan_port_private *portdata;
struct usb_wwan_intf_private *intfdata = port->serial->private;
+ struct urb *urb;

portdata = usb_get_serial_port_data(port);

@@ -426,10 +450,19 @@ void usb_wwan_close(struct usb_serial_port *port)
portdata->opened = 0;
spin_unlock_irq(&intfdata->susp_lock);

+ for (;;) {
+ urb = usb_get_from_anchor(&portdata->delayed);
+ if (!urb)
+ break;
+ unbusy_queued_urb(urb, portdata);
+ usb_autopm_put_interface_async(serial->interface);
+ }
+
for (i = 0; i < N_IN_URB; i++)
usb_kill_urb(portdata->in_urbs[i]);
for (i = 0; i < N_OUT_URB; i++)
usb_kill_urb(portdata->out_urbs[i]);
+ usb_kill_urb(port->interrupt_in_urb);

/* balancing - important as an error cannot be handled*/
usb_autopm_get_interface_no_resume(serial->interface);
@@ -467,7 +500,6 @@ int usb_wwan_port_probe(struct usb_serial_port *port)
struct usb_wwan_port_private *portdata;
struct urb *urb;
u8 *buffer;
- int err;
int i;

if (!port->bulk_in_size || !port->bulk_out_size)
@@ -507,13 +539,6 @@ int usb_wwan_port_probe(struct usb_serial_port *port)

usb_set_serial_port_data(port, portdata);

- if (port->interrupt_in_urb) {
- err = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
- if (err)
- dev_dbg(&port->dev, "%s: submit irq_in urb failed %d\n",
- __func__, err);
- }
-
return 0;

bail_out_error2:
@@ -581,44 +606,29 @@ static void stop_read_write_urbs(struct usb_serial *serial)
int usb_wwan_suspend(struct usb_serial *serial, pm_message_t message)
{
struct usb_wwan_intf_private *intfdata = serial->private;
- int b;

+ spin_lock_irq(&intfdata->susp_lock);
if (PMSG_IS_AUTO(message)) {
- spin_lock_irq(&intfdata->susp_lock);
- b = intfdata->in_flight;
- spin_unlock_irq(&intfdata->susp_lock);
-
- if (b)
+ if (intfdata->in_flight) {
+ spin_unlock_irq(&intfdata->susp_lock);
return -EBUSY;
+ }
}
-
- spin_lock_irq(&intfdata->susp_lock);
intfdata->suspended = 1;
spin_unlock_irq(&intfdata->susp_lock);
+
stop_read_write_urbs(serial);

return 0;
}
EXPORT_SYMBOL(usb_wwan_suspend);

-static void unbusy_queued_urb(struct urb *urb, struct usb_wwan_port_private *portdata)
-{
- int i;
-
- for (i = 0; i < N_OUT_URB; i++) {
- if (urb == portdata->out_urbs[i]) {
- clear_bit(i, &portdata->out_busy);
- break;
- }
- }
-}
-
-static void play_delayed(struct usb_serial_port *port)
+static int play_delayed(struct usb_serial_port *port)
{
struct usb_wwan_intf_private *data;
struct usb_wwan_port_private *portdata;
struct urb *urb;
- int err;
+ int err = 0;

portdata = usb_get_serial_port_data(port);
data = port->serial->private;
@@ -635,6 +645,8 @@ static void play_delayed(struct usb_serial_port *port)
break;
}
}
+
+ return err;
}

int usb_wwan_resume(struct usb_serial *serial)
@@ -644,54 +656,51 @@ int usb_wwan_resume(struct usb_serial *serial)
struct usb_wwan_intf_private *intfdata = serial->private;
struct usb_wwan_port_private *portdata;
struct urb *urb;
- int err = 0;
-
- /* get the interrupt URBs resubmitted unconditionally */
- for (i = 0; i < serial->num_ports; i++) {
- port = serial->port[i];
- if (!port->interrupt_in_urb) {
- dev_dbg(&port->dev, "%s: No interrupt URB for port\n", __func__);
- continue;
- }
- err = usb_submit_urb(port->interrupt_in_urb, GFP_NOIO);
- dev_dbg(&port->dev, "Submitted interrupt URB for port (result %d)\n", err);
- if (err < 0) {
- dev_err(&port->dev, "%s: Error %d for interrupt URB\n",
- __func__, err);
- goto err_out;
- }
- }
+ int err;
+ int err_count = 0;

+ spin_lock_irq(&intfdata->susp_lock);
for (i = 0; i < serial->num_ports; i++) {
/* walk all ports */
port = serial->port[i];
portdata = usb_get_serial_port_data(port);

/* skip closed ports */
- spin_lock_irq(&intfdata->susp_lock);
- if (!portdata || !portdata->opened) {
- spin_unlock_irq(&intfdata->susp_lock);
+ if (!portdata || !portdata->opened)
continue;
+
+ if (port->interrupt_in_urb) {
+ err = usb_submit_urb(port->interrupt_in_urb,
+ GFP_ATOMIC);
+ if (err) {
+ dev_err(&port->dev,
+ "%s: submit int urb failed: %d\n",
+ __func__, err);
+ err_count++;
+ }
}

+ err = play_delayed(port);
+ if (err)
+ err_count++;
+
for (j = 0; j < N_IN_URB; j++) {
urb = portdata->in_urbs[j];
err = usb_submit_urb(urb, GFP_ATOMIC);
if (err < 0) {
dev_err(&port->dev, "%s: Error %d for bulk URB %d\n",
__func__, err, i);
- spin_unlock_irq(&intfdata->susp_lock);
- goto err_out;
+ err_count++;
}
}
- play_delayed(port);
- spin_unlock_irq(&intfdata->susp_lock);
}
- spin_lock_irq(&intfdata->susp_lock);
intfdata->suspended = 0;
spin_unlock_irq(&intfdata->susp_lock);
-err_out:
- return err;
+
+ if (err_count)
+ return -EIO;
+
+ return 0;
}
EXPORT_SYMBOL(usb_wwan_resume);
#endif
diff --git a/drivers/video/matrox/matroxfb_base.h b/drivers/video/matrox/matroxfb_base.h
index 556d96ce40bf..89a8a89a5eb2 100644
--- a/drivers/video/matrox/matroxfb_base.h
+++ b/drivers/video/matrox/matroxfb_base.h
@@ -698,7 +698,7 @@ void matroxfb_unregister_driver(struct matroxfb_driver* drv);

#define mga_fifo(n) do {} while ((mga_inl(M_FIFOSTATUS) & 0xFF) < (n))

-#define WaitTillIdle() do {} while (mga_inl(M_STATUS) & 0x10000)
+#define WaitTillIdle() do { mga_inl(M_STATUS); do {} while (mga_inl(M_STATUS) & 0x10000); } while (0)

/* code speedup */
#ifdef CONFIG_FB_MATROX_MILLENIUM
diff --git a/drivers/watchdog/ath79_wdt.c b/drivers/watchdog/ath79_wdt.c
index 37cb09b27b63..c97a47ca8971 100644
--- a/drivers/watchdog/ath79_wdt.c
+++ b/drivers/watchdog/ath79_wdt.c
@@ -20,6 +20,7 @@
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

#include <linux/bitops.h>
+#include <linux/delay.h>
#include <linux/errno.h>
#include <linux/fs.h>
#include <linux/init.h>
@@ -91,6 +92,15 @@ static inline void ath79_wdt_keepalive(void)
static inline void ath79_wdt_enable(void)
{
ath79_wdt_keepalive();
+
+ /*
+ * Updating the TIMER register requires a few microseconds
+ * on the AR934x SoCs at least. Use a small delay to ensure
+ * that the TIMER register is updated within the hardware
+ * before enabling the watchdog.
+ */
+ udelay(2);
+
ath79_wdt_wr(WDOG_REG_CTRL, WDOG_CTRL_ACTION_FCR);
/* flush write */
ath79_wdt_rr(WDOG_REG_CTRL);
diff --git a/drivers/watchdog/kempld_wdt.c b/drivers/watchdog/kempld_wdt.c
index 5c3d4df63e68..22b9a036b3e1 100644
--- a/drivers/watchdog/kempld_wdt.c
+++ b/drivers/watchdog/kempld_wdt.c
@@ -163,7 +163,7 @@ static int kempld_wdt_set_stage_timeout(struct kempld_wdt_data *wdt_data,
kempld_get_mutex(pld);
stage_cfg = kempld_read8(pld, KEMPLD_WDT_STAGE_CFG(stage->id));
stage_cfg &= ~STAGE_CFG_PRESCALER_MASK;
- stage_cfg |= STAGE_CFG_SET_PRESCALER(prescaler);
+ stage_cfg |= STAGE_CFG_SET_PRESCALER(PRESCALER_21);
kempld_write8(pld, KEMPLD_WDT_STAGE_CFG(stage->id), stage_cfg);
kempld_write32(pld, KEMPLD_WDT_STAGE_TIMEOUT(stage->id),
stage_timeout);
diff --git a/drivers/watchdog/sp805_wdt.c b/drivers/watchdog/sp805_wdt.c
index 58df98aec122..2cf02ffbf9d8 100644
--- a/drivers/watchdog/sp805_wdt.c
+++ b/drivers/watchdog/sp805_wdt.c
@@ -60,7 +60,6 @@
* @adev: amba device structure of wdt
* @status: current status of wdt
* @load_val: load value to be set for current timeout
- * @timeout: current programmed timeout
*/
struct sp805_wdt {
struct watchdog_device wdd;
@@ -69,7 +68,6 @@ struct sp805_wdt {
struct clk *clk;
struct amba_device *adev;
unsigned int load_val;
- unsigned int timeout;
};

static bool nowayout = WATCHDOG_NOWAYOUT;
@@ -99,7 +97,7 @@ static int wdt_setload(struct watchdog_device *wdd, unsigned int timeout)
spin_lock(&wdt->lock);
wdt->load_val = load;
/* roundup timeout to closest positive integer value */
- wdt->timeout = div_u64((load + 1) * 2 + (rate / 2), rate);
+ wdd->timeout = div_u64((load + 1) * 2 + (rate / 2), rate);
spin_unlock(&wdt->lock);

return 0;
diff --git a/fs/aio.c b/fs/aio.c
index 975a5d5810a9..618021906aa9 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -312,7 +312,6 @@ static void free_ioctx(struct kioctx *ctx)

avail = (head <= ctx->tail ? ctx->tail : ctx->nr_events) - head;

- atomic_sub(avail, &ctx->reqs_active);
head += avail;
head %= ctx->nr_events;
}
@@ -680,6 +679,7 @@ void aio_complete(struct kiocb *iocb, long res, long res2)
put_rq:
/* everything turned out well, dispose of the aiocb. */
aio_put_req(iocb);
+ atomic_dec(&ctx->reqs_active);

/*
* We have to order our ring_info tail store above and test
@@ -719,6 +719,8 @@ static long aio_read_events_ring(struct kioctx *ctx,
if (head == ctx->tail)
goto out;

+ head %= ctx->nr_events;
+
while (ret < nr) {
long avail;
struct io_event *ev;
@@ -757,8 +759,6 @@ static long aio_read_events_ring(struct kioctx *ctx,
flush_dcache_page(ctx->ring_pages[0]);

pr_debug("%li h%u t%u\n", ret, head, ctx->tail);
-
- atomic_sub(ret, &ctx->reqs_active);
out:
mutex_unlock(&ctx->ring_lock);

diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index fe443fece851..6c80e0801e58 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -1654,6 +1654,7 @@ again:
* shortening the size of the delalloc range we're searching
*/
free_extent_state(cached_state);
+ cached_state = NULL;
if (!loops) {
unsigned long offset = (*start) & (PAGE_CACHE_SIZE - 1);
max_bytes = PAGE_CACHE_SIZE - offset;
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index db03437473f9..4412d85cde1c 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -2733,7 +2733,8 @@ extern void ext4_io_submit(struct ext4_io_submit *io);
extern int ext4_bio_write_page(struct ext4_io_submit *io,
struct page *page,
int len,
- struct writeback_control *wbc);
+ struct writeback_control *wbc,
+ bool keep_towrite);

/* mmp.c */
extern int ext4_multi_mount_protect(struct super_block *, ext4_fsblk_t);
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index e2dc5c44c967..2cf5e5a398a2 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -1826,6 +1826,7 @@ static int ext4_writepage(struct page *page,
struct buffer_head *page_bufs = NULL;
struct inode *inode = page->mapping->host;
struct ext4_io_submit io_submit;
+ bool keep_towrite = false;

trace_ext4_writepage(page);
size = i_size_read(inode);
@@ -1856,6 +1857,7 @@ static int ext4_writepage(struct page *page,
unlock_page(page);
return 0;
}
+ keep_towrite = true;
}

if (PageChecked(page) && ext4_should_journal_data(inode))
@@ -1872,7 +1874,7 @@ static int ext4_writepage(struct page *page,
unlock_page(page);
return -ENOMEM;
}
- ret = ext4_bio_write_page(&io_submit, page, len, wbc);
+ ret = ext4_bio_write_page(&io_submit, page, len, wbc, keep_towrite);
ext4_io_submit(&io_submit);
/* Drop io_end reference we got from init */
ext4_put_io_end_defer(io_submit.io_end);
@@ -1891,7 +1893,7 @@ static int mpage_submit_page(struct mpage_da_data *mpd, struct page *page)
else
len = PAGE_CACHE_SIZE;
clear_page_dirty_for_io(page);
- err = ext4_bio_write_page(&mpd->io_submit, page, len, mpd->wbc);
+ err = ext4_bio_write_page(&mpd->io_submit, page, len, mpd->wbc, false);
if (!err)
mpd->wbc->nr_to_write--;
mpd->first_page++;
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 5f54d059968d..1e0ad8d390f2 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -3117,7 +3117,7 @@ ext4_mb_normalize_request(struct ext4_allocation_context *ac,
}
BUG_ON(start + size <= ac->ac_o_ex.fe_logical &&
start > ac->ac_o_ex.fe_logical);
- BUG_ON(size <= 0 || size > EXT4_CLUSTERS_PER_GROUP(ac->ac_sb));
+ BUG_ON(size <= 0 || size > EXT4_BLOCKS_PER_GROUP(ac->ac_sb));

/* now prepare goal request */

diff --git a/fs/ext4/page-io.c b/fs/ext4/page-io.c
index 3ec6f7473490..a6fa5a6d6f58 100644
--- a/fs/ext4/page-io.c
+++ b/fs/ext4/page-io.c
@@ -416,7 +416,8 @@ submit_and_retry:
int ext4_bio_write_page(struct ext4_io_submit *io,
struct page *page,
int len,
- struct writeback_control *wbc)
+ struct writeback_control *wbc,
+ bool keep_towrite)
{
struct inode *inode = page->mapping->host;
unsigned block_start, blocksize;
@@ -429,10 +430,24 @@ int ext4_bio_write_page(struct ext4_io_submit *io,
BUG_ON(!PageLocked(page));
BUG_ON(PageWriteback(page));

- set_page_writeback(page);
+ if (keep_towrite)
+ set_page_writeback_keepwrite(page);
+ else
+ set_page_writeback(page);
ClearPageError(page);

/*
+ * Comments copied from block_write_full_page_endio:
+ *
+ * The page straddles i_size. It must be zeroed out on each and every
+ * writepage invocation because it may be mmapped. "A file is mapped
+ * in multiples of the page size. For a file that is not a multiple of
+ * the page size, the remaining memory is zeroed when mapped, and
+ * writes to that region are not written out to the file."
+ */
+ if (len < PAGE_CACHE_SIZE)
+ zero_user_segment(page, len, PAGE_CACHE_SIZE);
+ /*
* In the first loop we prepare and mark buffers to submit. We have to
* mark all buffers in the page before submitting so that
* end_page_writeback() cannot be called from ext4_bio_end_io() when IO
@@ -443,19 +458,6 @@ int ext4_bio_write_page(struct ext4_io_submit *io,
do {
block_start = bh_offset(bh);
if (block_start >= len) {
- /*
- * Comments copied from block_write_full_page_endio:
- *
- * The page straddles i_size. It must be zeroed out on
- * each and every writepage invocation because it may
- * be mmapped. "A file is mapped in multiples of the
- * page size. For a file that is not a multiple of
- * the page size, the remaining memory is zeroed when
- * mapped, and writes to that region are not written
- * out to the file."
- */
- zero_user_segment(page, block_start,
- block_start + blocksize);
clear_buffer_dirty(bh);
set_buffer_uptodate(bh);
continue;
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 993581f51799..9af113f2b23b 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -1485,18 +1485,20 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
inode->i_version = fattr->change_attr;
}
} else if (server->caps & NFS_CAP_CHANGE_ATTR)
- invalid |= save_cache_validity;
+ nfsi->cache_validity |= save_cache_validity;

if (fattr->valid & NFS_ATTR_FATTR_MTIME) {
memcpy(&inode->i_mtime, &fattr->mtime, sizeof(inode->i_mtime));
} else if (server->caps & NFS_CAP_MTIME)
- invalid |= save_cache_validity & (NFS_INO_INVALID_ATTR
+ nfsi->cache_validity |= save_cache_validity &
+ (NFS_INO_INVALID_ATTR
| NFS_INO_REVAL_FORCED);

if (fattr->valid & NFS_ATTR_FATTR_CTIME) {
memcpy(&inode->i_ctime, &fattr->ctime, sizeof(inode->i_ctime));
} else if (server->caps & NFS_CAP_CTIME)
- invalid |= save_cache_validity & (NFS_INO_INVALID_ATTR
+ nfsi->cache_validity |= save_cache_validity &
+ (NFS_INO_INVALID_ATTR
| NFS_INO_REVAL_FORCED);

/* Check if our cached file size is stale */
@@ -1519,7 +1521,8 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
(long long)new_isize);
}
} else
- invalid |= save_cache_validity & (NFS_INO_INVALID_ATTR
+ nfsi->cache_validity |= save_cache_validity &
+ (NFS_INO_INVALID_ATTR
| NFS_INO_REVAL_PAGECACHE
| NFS_INO_REVAL_FORCED);

@@ -1527,7 +1530,8 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
if (fattr->valid & NFS_ATTR_FATTR_ATIME)
memcpy(&inode->i_atime, &fattr->atime, sizeof(inode->i_atime));
else if (server->caps & NFS_CAP_ATIME)
- invalid |= save_cache_validity & (NFS_INO_INVALID_ATIME
+ nfsi->cache_validity |= save_cache_validity &
+ (NFS_INO_INVALID_ATIME
| NFS_INO_REVAL_FORCED);

if (fattr->valid & NFS_ATTR_FATTR_MODE) {
@@ -1538,7 +1542,8 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL;
}
} else if (server->caps & NFS_CAP_MODE)
- invalid |= save_cache_validity & (NFS_INO_INVALID_ATTR
+ nfsi->cache_validity |= save_cache_validity &
+ (NFS_INO_INVALID_ATTR
| NFS_INO_INVALID_ACCESS
| NFS_INO_INVALID_ACL
| NFS_INO_REVAL_FORCED);
@@ -1549,7 +1554,8 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
inode->i_uid = fattr->uid;
}
} else if (server->caps & NFS_CAP_OWNER)
- invalid |= save_cache_validity & (NFS_INO_INVALID_ATTR
+ nfsi->cache_validity |= save_cache_validity &
+ (NFS_INO_INVALID_ATTR
| NFS_INO_INVALID_ACCESS
| NFS_INO_INVALID_ACL
| NFS_INO_REVAL_FORCED);
@@ -1560,7 +1566,8 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
inode->i_gid = fattr->gid;
}
} else if (server->caps & NFS_CAP_OWNER_GROUP)
- invalid |= save_cache_validity & (NFS_INO_INVALID_ATTR
+ nfsi->cache_validity |= save_cache_validity &
+ (NFS_INO_INVALID_ATTR
| NFS_INO_INVALID_ACCESS
| NFS_INO_INVALID_ACL
| NFS_INO_REVAL_FORCED);
@@ -1573,7 +1580,8 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
set_nlink(inode, fattr->nlink);
}
} else if (server->caps & NFS_CAP_NLINK)
- invalid |= save_cache_validity & (NFS_INO_INVALID_ATTR
+ nfsi->cache_validity |= save_cache_validity &
+ (NFS_INO_INVALID_ATTR
| NFS_INO_REVAL_FORCED);

if (fattr->valid & NFS_ATTR_FATTR_SPACE_USED) {
diff --git a/fs/nfs/nfs4filelayout.c b/fs/nfs/nfs4filelayout.c
index 17ed87ef9de8..76a988f31727 100644
--- a/fs/nfs/nfs4filelayout.c
+++ b/fs/nfs/nfs4filelayout.c
@@ -1301,7 +1301,7 @@ filelayout_alloc_layout_hdr(struct inode *inode, gfp_t gfp_flags)
struct nfs4_filelayout *flo;

flo = kzalloc(sizeof(*flo), gfp_flags);
- return &flo->generic_hdr;
+ return flo != NULL ? &flo->generic_hdr : NULL;
}

static void
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index f6db66d8f647..928bb8c1680e 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -2178,6 +2178,7 @@ nfs_remount(struct super_block *sb, int *flags, char *raw_data)
data->timeo = 10U * nfss->client->cl_timeout->to_initval / HZ;
data->nfs_server.port = nfss->port;
data->nfs_server.addrlen = nfss->nfs_client->cl_addrlen;
+ data->net = current->nsproxy->net_ns;
memcpy(&data->nfs_server.address, &nfss->nfs_client->cl_addr,
data->nfs_server.addrlen);

diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 85e3686f16fc..bdf96fc2221a 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -3705,7 +3705,7 @@ nfsd4_free_lock_stateid(struct nfs4_ol_stateid *stp)
* correspondance, and we have to delete the lockowner when we
* delete the lock stateid:
*/
- unhash_lockowner(lo);
+ release_lockowner(lo);
return nfs_ok;
}

diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index 0fcd664801a0..9e250c229007 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -2111,8 +2111,8 @@ nfsd4_encode_fattr(struct svc_fh *fhp, struct svc_export *exp,
err = vfs_getattr(&path, &stat);
if (err)
goto out_nfserr;
- if ((bmval0 & (FATTR4_WORD0_FILES_FREE | FATTR4_WORD0_FILES_TOTAL |
- FATTR4_WORD0_MAXNAME)) ||
+ if ((bmval0 & (FATTR4_WORD0_FILES_AVAIL | FATTR4_WORD0_FILES_FREE |
+ FATTR4_WORD0_FILES_TOTAL | FATTR4_WORD0_MAXNAME)) ||
(bmval1 & (FATTR4_WORD1_SPACE_AVAIL | FATTR4_WORD1_SPACE_FREE |
FATTR4_WORD1_SPACE_TOTAL))) {
err = vfs_statfs(&path, &statfs);
diff --git a/fs/nfsd/nfscache.c b/fs/nfsd/nfscache.c
index ec8d97ddc635..e5e4675b7e75 100644
--- a/fs/nfsd/nfscache.c
+++ b/fs/nfsd/nfscache.c
@@ -129,13 +129,6 @@ nfsd_reply_cache_alloc(void)
}

static void
-nfsd_reply_cache_unhash(struct svc_cacherep *rp)
-{
- hlist_del_init(&rp->c_hash);
- list_del_init(&rp->c_lru);
-}
-
-static void
nfsd_reply_cache_free_locked(struct svc_cacherep *rp)
{
if (rp->c_type == RC_REPLBUFF && rp->c_replvec.iov_base) {
@@ -228,13 +221,6 @@ hash_refile(struct svc_cacherep *rp)
hlist_add_head(&rp->c_hash, cache_hash + hash_32(rp->c_xid, maskbits));
}

-static inline bool
-nfsd_cache_entry_expired(struct svc_cacherep *rp)
-{
- return rp->c_state != RC_INPROG &&
- time_after(jiffies, rp->c_timestamp + RC_EXPIRE);
-}
-
/*
* Walk the LRU list and prune off entries that are older than RC_EXPIRE.
* Also prune the oldest ones when the total exceeds the max number of entries.
@@ -245,8 +231,14 @@ prune_cache_entries(void)
struct svc_cacherep *rp, *tmp;

list_for_each_entry_safe(rp, tmp, &lru_head, c_lru) {
- if (!nfsd_cache_entry_expired(rp) &&
- num_drc_entries <= max_drc_entries)
+ /*
+ * Don't free entries attached to calls that are still
+ * in-progress, but do keep scanning the list.
+ */
+ if (rp->c_state == RC_INPROG)
+ continue;
+ if (num_drc_entries <= max_drc_entries &&
+ time_before(jiffies, rp->c_timestamp + RC_EXPIRE))
break;
nfsd_reply_cache_free_locked(rp);
}
@@ -402,22 +394,8 @@ nfsd_cache_lookup(struct svc_rqst *rqstp)

/*
* Since the common case is a cache miss followed by an insert,
- * preallocate an entry. First, try to reuse the first entry on the LRU
- * if it works, then go ahead and prune the LRU list.
+ * preallocate an entry.
*/
- spin_lock(&cache_lock);
- if (!list_empty(&lru_head)) {
- rp = list_first_entry(&lru_head, struct svc_cacherep, c_lru);
- if (nfsd_cache_entry_expired(rp) ||
- num_drc_entries >= max_drc_entries) {
- nfsd_reply_cache_unhash(rp);
- prune_cache_entries();
- goto search_cache;
- }
- }
-
- /* No expired ones available, allocate a new one. */
- spin_unlock(&cache_lock);
rp = nfsd_reply_cache_alloc();
spin_lock(&cache_lock);
if (likely(rp)) {
@@ -425,7 +403,9 @@ nfsd_cache_lookup(struct svc_rqst *rqstp)
drc_mem_usage += sizeof(*rp);
}

-search_cache:
+ /* go ahead and prune the cache */
+ prune_cache_entries();
+
found = nfsd_cache_search(rqstp, csum);
if (found) {
if (likely(rp))
@@ -439,15 +419,6 @@ search_cache:
goto out;
}

- /*
- * We're keeping the one we just allocated. Are we now over the
- * limit? Prune one off the tip of the LRU in trade for the one we
- * just allocated if so.
- */
- if (num_drc_entries >= max_drc_entries)
- nfsd_reply_cache_free_locked(list_first_entry(&lru_head,
- struct svc_cacherep, c_lru));
-
nfsdstats.rcmisses++;
rqstp->rq_cacherep = rp;
rp->c_state = RC_INPROG;
diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c
index 0048cc16a6a8..9fa970e7b2cd 100644
--- a/fs/reiserfs/inode.c
+++ b/fs/reiserfs/inode.c
@@ -3217,8 +3217,14 @@ int reiserfs_setattr(struct dentry *dentry, struct iattr *attr)
attr->ia_size != i_size_read(inode)) {
error = inode_newsize_ok(inode, attr->ia_size);
if (!error) {
+ /*
+ * Could race against reiserfs_file_release
+ * if called from NFS, so take tailpack mutex.
+ */
+ mutex_lock(&REISERFS_I(inode)->tailpack);
truncate_setsize(inode, attr->ia_size);
- reiserfs_vfs_truncate_file(inode);
+ reiserfs_truncate_file(inode, 1);
+ mutex_unlock(&REISERFS_I(inode)->tailpack);
}
}

diff --git a/fs/ubifs/file.c b/fs/ubifs/file.c
index 123c79b7261e..b56eb6275744 100644
--- a/fs/ubifs/file.c
+++ b/fs/ubifs/file.c
@@ -1525,8 +1525,7 @@ static int ubifs_vm_page_mkwrite(struct vm_area_struct *vma,
}

wait_for_stable_page(page);
- unlock_page(page);
- return 0;
+ return VM_FAULT_LOCKED;

out_unlock:
unlock_page(page);
diff --git a/fs/ubifs/shrinker.c b/fs/ubifs/shrinker.c
index 9e1d05666fed..e0a7a764a903 100644
--- a/fs/ubifs/shrinker.c
+++ b/fs/ubifs/shrinker.c
@@ -128,7 +128,6 @@ static int shrink_tnc(struct ubifs_info *c, int nr, int age, int *contention)
freed = ubifs_destroy_tnc_subtree(znode);
atomic_long_sub(freed, &ubifs_clean_zn_cnt);
atomic_long_sub(freed, &c->clean_zn_cnt);
- ubifs_assert(atomic_long_read(&c->clean_zn_cnt) >= 0);
total_freed += freed;
znode = zprev;
}
diff --git a/include/linux/if_team.h b/include/linux/if_team.h
index f6156f91eb1c..9023bc1c3a6b 100644
--- a/include/linux/if_team.h
+++ b/include/linux/if_team.h
@@ -194,6 +194,7 @@ struct team {
bool user_carrier_enabled;
bool queue_override_enabled;
struct list_head *qom_lists; /* array of queue override mapping lists */
+ bool port_mtu_change_allowed;
long mode_priv[TEAM_MODE_PRIV_LONGS];
};

diff --git a/include/linux/init_task.h b/include/linux/init_task.h
index 5cd0f0949927..998f4dfedecf 100644
--- a/include/linux/init_task.h
+++ b/include/linux/init_task.h
@@ -40,6 +40,7 @@ extern struct fs_struct init_fs;

#define INIT_SIGNALS(sig) { \
.nr_threads = 1, \
+ .thread_head = LIST_HEAD_INIT(init_task.thread_node), \
.wait_chldexit = __WAIT_QUEUE_HEAD_INITIALIZER(sig.wait_chldexit),\
.shared_pending = { \
.list = LIST_HEAD_INIT(sig.shared_pending.list), \
@@ -213,6 +214,7 @@ extern struct task_group root_task_group;
[PIDTYPE_SID] = INIT_PID_LINK(PIDTYPE_SID), \
}, \
.thread_group = LIST_HEAD_INIT(tsk.thread_group), \
+ .thread_node = LIST_HEAD_INIT(init_signals.thread_head), \
INIT_IDS \
INIT_PERF_EVENTS(tsk) \
INIT_TRACE_IRQFLAGS \
diff --git a/include/linux/irqdesc.h b/include/linux/irqdesc.h
index 623325e2ff97..078bc2fc74ff 100644
--- a/include/linux/irqdesc.h
+++ b/include/linux/irqdesc.h
@@ -27,6 +27,8 @@ struct irq_desc;
* @irq_count: stats field to detect stalled irqs
* @last_unhandled: aging timer for unhandled count
* @irqs_unhandled: stats field for spurious unhandled interrupts
+ * @threads_handled: stats field for deferred spurious detection of threaded handlers
+ * @threads_handled_last: comparator field for deferred spurious detection of theraded handlers
* @lock: locking for SMP
* @affinity_hint: hint to user space for preferred irq affinity
* @affinity_notify: context for notification of affinity changes
@@ -52,6 +54,8 @@ struct irq_desc {
unsigned int irq_count; /* For detecting broken IRQs */
unsigned long last_unhandled; /* Aging timer for unhandled count */
unsigned int irqs_unhandled;
+ atomic_t threads_handled;
+ int threads_handled_last;
raw_spinlock_t lock;
struct cpumask *percpu_enabled;
#ifdef CONFIG_SMP
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index af4a3b77a8de..f30a6f1fb604 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -75,9 +75,13 @@ enum {

extern int page_group_by_mobility_disabled;

+#define NR_MIGRATETYPE_BITS (PB_migrate_end - PB_migrate + 1)
+#define MIGRATETYPE_MASK ((1UL << NR_MIGRATETYPE_BITS) - 1)
+
static inline int get_pageblock_migratetype(struct page *page)
{
- return get_pageblock_flags_group(page, PB_migrate, PB_migrate_end);
+ BUILD_BUG_ON(PB_migrate_end - PB_migrate != 2);
+ return get_pageblock_flags_mask(page, PB_migrate_end, MIGRATETYPE_MASK);
}

struct free_area {
diff --git a/include/linux/netlink.h b/include/linux/netlink.h
index 7a6c396a263b..8b50a62ef98b 100644
--- a/include/linux/netlink.h
+++ b/include/linux/netlink.h
@@ -16,9 +16,10 @@ static inline struct nlmsghdr *nlmsg_hdr(const struct sk_buff *skb)
}

enum netlink_skb_flags {
- NETLINK_SKB_MMAPED = 0x1, /* Packet data is mmaped */
- NETLINK_SKB_TX = 0x2, /* Packet was sent by userspace */
- NETLINK_SKB_DELIVERED = 0x4, /* Packet was delivered */
+ NETLINK_SKB_MMAPED = 0x1, /* Packet data is mmaped */
+ NETLINK_SKB_TX = 0x2, /* Packet was sent by userspace */
+ NETLINK_SKB_DELIVERED = 0x4, /* Packet was delivered */
+ NETLINK_SKB_DST = 0x8, /* Dst set in sendto or sendmsg */
};

struct netlink_skb_parms {
@@ -171,4 +172,11 @@ extern int netlink_add_tap(struct netlink_tap *nt);
extern int __netlink_remove_tap(struct netlink_tap *nt);
extern int netlink_remove_tap(struct netlink_tap *nt);

+bool __netlink_ns_capable(const struct netlink_skb_parms *nsp,
+ struct user_namespace *ns, int cap);
+bool netlink_ns_capable(const struct sk_buff *skb,
+ struct user_namespace *ns, int cap);
+bool netlink_capable(const struct sk_buff *skb, int cap);
+bool netlink_net_capable(const struct sk_buff *skb, int cap);
+
#endif /* __LINUX_NETLINK_H */
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index 6d53675c2b54..dd7d45b5c496 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -317,13 +317,23 @@ CLEARPAGEFLAG(Uptodate, uptodate)
extern void cancel_dirty_page(struct page *page, unsigned int account_size);

int test_clear_page_writeback(struct page *page);
-int test_set_page_writeback(struct page *page);
+int __test_set_page_writeback(struct page *page, bool keep_write);
+
+#define test_set_page_writeback(page) \
+ __test_set_page_writeback(page, false)
+#define test_set_page_writeback_keepwrite(page) \
+ __test_set_page_writeback(page, true)

static inline void set_page_writeback(struct page *page)
{
test_set_page_writeback(page);
}

+static inline void set_page_writeback_keepwrite(struct page *page)
+{
+ test_set_page_writeback_keepwrite(page);
+}
+
#ifdef CONFIG_PAGEFLAGS_EXTENDED
/*
* System with lots of page flags available. This allows separate
diff --git a/include/linux/pageblock-flags.h b/include/linux/pageblock-flags.h
index 2ee8cd2466b5..c08730c10c7a 100644
--- a/include/linux/pageblock-flags.h
+++ b/include/linux/pageblock-flags.h
@@ -30,9 +30,12 @@ enum pageblock_bits {
PB_migrate,
PB_migrate_end = PB_migrate + 3 - 1,
/* 3 bits required for migrate types */
-#ifdef CONFIG_COMPACTION
PB_migrate_skip,/* If set the block is skipped by compaction */
-#endif /* CONFIG_COMPACTION */
+
+ /*
+ * Assume the bits will always align on a word. If this assumption
+ * changes then get/set pageblock needs updating.
+ */
NR_PAGEBLOCK_BITS
};

@@ -62,11 +65,33 @@ extern int pageblock_order;
/* Forward declaration */
struct page;

+unsigned long get_pageblock_flags_mask(struct page *page,
+ unsigned long end_bitidx,
+ unsigned long mask);
+void set_pageblock_flags_mask(struct page *page,
+ unsigned long flags,
+ unsigned long end_bitidx,
+ unsigned long mask);
+
/* Declarations for getting and setting flags. See mm/page_alloc.c */
-unsigned long get_pageblock_flags_group(struct page *page,
- int start_bitidx, int end_bitidx);
-void set_pageblock_flags_group(struct page *page, unsigned long flags,
- int start_bitidx, int end_bitidx);
+static inline unsigned long get_pageblock_flags_group(struct page *page,
+ int start_bitidx, int end_bitidx)
+{
+ unsigned long nr_flag_bits = end_bitidx - start_bitidx + 1;
+ unsigned long mask = (1 << nr_flag_bits) - 1;
+
+ return get_pageblock_flags_mask(page, end_bitidx, mask);
+}
+
+static inline void set_pageblock_flags_group(struct page *page,
+ unsigned long flags,
+ int start_bitidx, int end_bitidx)
+{
+ unsigned long nr_flag_bits = end_bitidx - start_bitidx + 1;
+ unsigned long mask = (1 << nr_flag_bits) - 1;
+
+ set_pageblock_flags_mask(page, flags, end_bitidx, mask);
+}

#ifdef CONFIG_COMPACTION
#define get_pageblock_skip(page) \
diff --git a/include/linux/ptrace.h b/include/linux/ptrace.h
index 07d0df6bf768..077904c8b70d 100644
--- a/include/linux/ptrace.h
+++ b/include/linux/ptrace.h
@@ -5,6 +5,7 @@
#include <linux/sched.h> /* For struct task_struct. */
#include <linux/err.h> /* for IS_ERR_VALUE */
#include <linux/bug.h> /* For BUG_ON. */
+#include <linux/pid_namespace.h> /* For task_active_pid_ns. */
#include <uapi/linux/ptrace.h>

/*
@@ -129,6 +130,37 @@ static inline void ptrace_event(int event, unsigned long message)
}

/**
+ * ptrace_event_pid - possibly stop for a ptrace event notification
+ * @event: %PTRACE_EVENT_* value to report
+ * @pid: process identifier for %PTRACE_GETEVENTMSG to return
+ *
+ * Check whether @event is enabled and, if so, report @event and @pid
+ * to the ptrace parent. @pid is reported as the pid_t seen from the
+ * the ptrace parent's pid namespace.
+ *
+ * Called without locks.
+ */
+static inline void ptrace_event_pid(int event, struct pid *pid)
+{
+ /*
+ * FIXME: There's a potential race if a ptracer in a different pid
+ * namespace than parent attaches between computing message below and
+ * when we acquire tasklist_lock in ptrace_stop(). If this happens,
+ * the ptracer will get a bogus pid from PTRACE_GETEVENTMSG.
+ */
+ unsigned long message = 0;
+ struct pid_namespace *ns;
+
+ rcu_read_lock();
+ ns = task_active_pid_ns(rcu_dereference(current->parent));
+ if (ns)
+ message = pid_nr_ns(pid, ns);
+ rcu_read_unlock();
+
+ ptrace_event(event, message);
+}
+
+/**
* ptrace_init_task - initialize ptrace state for a new child
* @child: new child task
* @ptrace: true if child should be ptrace'd by parent's tracer
diff --git a/include/linux/sched.h b/include/linux/sched.h
index f18404697698..2b44f0ce780b 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -478,6 +478,7 @@ struct signal_struct {
atomic_t sigcnt;
atomic_t live;
int nr_threads;
+ struct list_head thread_head;

wait_queue_head_t wait_chldexit; /* for wait4() */

@@ -1153,6 +1154,7 @@ struct task_struct {
/* PID/PID hash table linkage. */
struct pid_link pids[PIDTYPE_MAX];
struct list_head thread_group;
+ struct list_head thread_node;

struct completion *vfork_done; /* for vfork() */
int __user *set_child_tid; /* CLONE_CHILD_SETTID */
@@ -2180,6 +2182,16 @@ extern bool current_is_single_threaded(void);
#define while_each_thread(g, t) \
while ((t = next_thread(t)) != g)

+#define __for_each_thread(signal, t) \
+ list_for_each_entry_rcu(t, &(signal)->thread_head, thread_node)
+
+#define for_each_thread(p, t) \
+ __for_each_thread((p)->signal, t)
+
+/* Careful: this is a double loop, 'break' won't work as expected. */
+#define for_each_process_thread(p, t) \
+ for_each_process(p) for_each_thread(p, t)
+
static inline int get_nr_threads(struct task_struct *tsk)
{
return tsk->signal->nr_threads;
diff --git a/include/linux/sock_diag.h b/include/linux/sock_diag.h
index 302ab805b0bb..46cca4c06848 100644
--- a/include/linux/sock_diag.h
+++ b/include/linux/sock_diag.h
@@ -23,7 +23,7 @@ int sock_diag_check_cookie(void *sk, __u32 *cookie);
void sock_diag_save_cookie(void *sk, __u32 *cookie);

int sock_diag_put_meminfo(struct sock *sk, struct sk_buff *skb, int attr);
-int sock_diag_put_filterinfo(struct sock *sk,
+int sock_diag_put_filterinfo(bool may_report_filterinfo, struct sock *sk,
struct sk_buff *skb, int attrtype);

#endif
diff --git a/include/net/inetpeer.h b/include/net/inetpeer.h
index 53f464d7cddc..6ca347a0717e 100644
--- a/include/net/inetpeer.h
+++ b/include/net/inetpeer.h
@@ -178,16 +178,9 @@ static inline void inet_peer_refcheck(const struct inet_peer *p)
/* can be called with or without local BH being disabled */
static inline int inet_getid(struct inet_peer *p, int more)
{
- int old, new;
more++;
inet_peer_refcheck(p);
- do {
- old = atomic_read(&p->ip_id_count);
- new = old + more;
- if (!new)
- new = 1;
- } while (atomic_cmpxchg(&p->ip_id_count, old, new) != old);
- return new;
+ return atomic_add_return(more, &p->ip_id_count) - more;
}

#endif /* _NET_INETPEER_H */
diff --git a/include/net/sock.h b/include/net/sock.h
index 643f92e911d9..0588d4f195e3 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -2257,6 +2257,11 @@ extern void sock_enable_timestamp(struct sock *sk, int flag);
extern int sock_get_timestamp(struct sock *, struct timeval __user *);
extern int sock_get_timestampns(struct sock *, struct timespec __user *);

+bool sk_ns_capable(const struct sock *sk,
+ struct user_namespace *user_ns, int cap);
+bool sk_capable(const struct sock *sk, int cap);
+bool sk_net_capable(const struct sock *sk, int cap);
+
/*
* Enable debug/info messages
*/
diff --git a/include/sound/core.h b/include/sound/core.h
index c586617cfa0d..dca430084a26 100644
--- a/include/sound/core.h
+++ b/include/sound/core.h
@@ -120,6 +120,8 @@ struct snd_card {
int user_ctl_count; /* count of all user controls */
struct list_head controls; /* all controls for this card */
struct list_head ctl_files; /* active control files */
+ struct mutex user_ctl_lock; /* protects user controls against
+ concurrent access */

struct snd_info_entry *proc_root; /* root for soundcard specific files */
struct snd_info_entry *proc_id; /* the card id */
diff --git a/include/target/iscsi/iscsi_transport.h b/include/target/iscsi/iscsi_transport.h
index 4bde6131bc16..0dba01d89b58 100644
--- a/include/target/iscsi/iscsi_transport.h
+++ b/include/target/iscsi/iscsi_transport.h
@@ -63,7 +63,8 @@ extern void iscsit_build_nopin_rsp(struct iscsi_cmd *, struct iscsi_conn *,
extern void iscsit_build_task_mgt_rsp(struct iscsi_cmd *, struct iscsi_conn *,
struct iscsi_tm_rsp *);
extern int iscsit_build_text_rsp(struct iscsi_cmd *, struct iscsi_conn *,
- struct iscsi_text_rsp *);
+ struct iscsi_text_rsp *,
+ enum iscsit_transport_type);
extern void iscsit_build_reject(struct iscsi_cmd *, struct iscsi_conn *,
struct iscsi_reject *);
extern int iscsit_build_logout_rsp(struct iscsi_cmd *, struct iscsi_conn *,
diff --git a/include/target/target_core_backend.h b/include/target/target_core_backend.h
index ffa2696d64dc..a63529ab9fd7 100644
--- a/include/target/target_core_backend.h
+++ b/include/target/target_core_backend.h
@@ -50,6 +50,7 @@ int transport_subsystem_register(struct se_subsystem_api *);
void transport_subsystem_release(struct se_subsystem_api *);

void target_complete_cmd(struct se_cmd *, u8);
+void target_complete_cmd_with_length(struct se_cmd *, u8, int);

sense_reason_t spc_parse_cdb(struct se_cmd *cmd, unsigned int *size);
sense_reason_t spc_emulate_report_luns(struct se_cmd *cmd);
diff --git a/include/uapi/sound/compress_offload.h b/include/uapi/sound/compress_offload.h
index 5759810e1c1b..21eed488783f 100644
--- a/include/uapi/sound/compress_offload.h
+++ b/include/uapi/sound/compress_offload.h
@@ -80,7 +80,7 @@ struct snd_compr_tstamp {
struct snd_compr_avail {
__u64 avail;
struct snd_compr_tstamp tstamp;
-};
+} __attribute__((packed));

enum snd_compr_direction {
SND_COMPRESS_PLAYBACK = 0,
diff --git a/kernel/audit.c b/kernel/audit.c
index 50512d11a445..197a496587a6 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -593,13 +593,13 @@ static int audit_netlink_ok(struct sk_buff *skb, u16 msg_type)
case AUDIT_TTY_SET:
case AUDIT_TRIM:
case AUDIT_MAKE_EQUIV:
- if (!capable(CAP_AUDIT_CONTROL))
+ if (!netlink_capable(skb, CAP_AUDIT_CONTROL))
err = -EPERM;
break;
case AUDIT_USER:
case AUDIT_FIRST_USER_MSG ... AUDIT_LAST_USER_MSG:
case AUDIT_FIRST_USER_MSG2 ... AUDIT_LAST_USER_MSG2:
- if (!capable(CAP_AUDIT_WRITE))
+ if (!netlink_capable(skb, CAP_AUDIT_WRITE))
err = -EPERM;
break;
default: /* bad msg */
diff --git a/kernel/exit.c b/kernel/exit.c
index dcde2c4b61d0..81b3d6789ee8 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -74,6 +74,7 @@ static void __unhash_process(struct task_struct *p, bool group_dead)
__this_cpu_dec(process_counts);
}
list_del_rcu(&p->thread_group);
+ list_del_rcu(&p->thread_node);
}

/*
diff --git a/kernel/fork.c b/kernel/fork.c
index f1f82cfc1105..2782836d8adc 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -1041,6 +1041,11 @@ static int copy_signal(unsigned long clone_flags, struct task_struct *tsk)
sig->nr_threads = 1;
atomic_set(&sig->live, 1);
atomic_set(&sig->sigcnt, 1);
+
+ /* list_add(thread_node, thread_head) without INIT_LIST_HEAD() */
+ sig->thread_head = (struct list_head)LIST_HEAD_INIT(tsk->thread_node);
+ tsk->thread_node = (struct list_head)LIST_HEAD_INIT(sig->thread_head);
+
init_waitqueue_head(&sig->wait_chldexit);
sig->curr_target = tsk;
init_sigpending(&sig->shared_pending);
@@ -1477,6 +1482,8 @@ static struct task_struct *copy_process(unsigned long clone_flags,
atomic_inc(&current->signal->sigcnt);
list_add_tail_rcu(&p->thread_group,
&p->group_leader->thread_group);
+ list_add_tail_rcu(&p->thread_node,
+ &p->signal->thread_head);
}
attach_pid(p, PIDTYPE_PID);
nr_threads++;
@@ -1612,10 +1619,12 @@ long do_fork(unsigned long clone_flags,
*/
if (!IS_ERR(p)) {
struct completion vfork;
+ struct pid *pid;

trace_sched_process_fork(current, p);

- nr = task_pid_vnr(p);
+ pid = get_task_pid(p, PIDTYPE_PID);
+ nr = pid_vnr(pid);

if (clone_flags & CLONE_PARENT_SETTID)
put_user(nr, parent_tidptr);
@@ -1630,12 +1639,14 @@ long do_fork(unsigned long clone_flags,

/* forking complete and child started to run, tell ptracer */
if (unlikely(trace))
- ptrace_event(trace, nr);
+ ptrace_event_pid(trace, pid);

if (clone_flags & CLONE_VFORK) {
if (!wait_for_vfork_done(p, &vfork))
- ptrace_event(PTRACE_EVENT_VFORK_DONE, nr);
+ ptrace_event_pid(PTRACE_EVENT_VFORK_DONE, pid);
}
+
+ put_pid(pid);
} else {
nr = PTR_ERR(p);
}
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index 9e31fa71908d..75a976a8ed58 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -856,8 +856,8 @@ static int irq_thread(void *data)
irq_thread_check_affinity(desc, action);

action_ret = handler_fn(desc, action);
- if (!noirqdebug)
- note_interrupt(action->irq, desc, action_ret);
+ if (action_ret == IRQ_HANDLED)
+ atomic_inc(&desc->threads_handled);

wake_threads_waitq(desc);
}
diff --git a/kernel/irq/spurious.c b/kernel/irq/spurious.c
index 7b5f012bde9d..febcee3c2aa9 100644
--- a/kernel/irq/spurious.c
+++ b/kernel/irq/spurious.c
@@ -265,21 +265,119 @@ try_misrouted_irq(unsigned int irq, struct irq_desc *desc,
return action && (action->flags & IRQF_IRQPOLL);
}

+#define SPURIOUS_DEFERRED 0x80000000
+
void note_interrupt(unsigned int irq, struct irq_desc *desc,
irqreturn_t action_ret)
{
if (desc->istate & IRQS_POLL_INPROGRESS)
return;

- /* we get here again via the threaded handler */
- if (action_ret == IRQ_WAKE_THREAD)
- return;
-
if (bad_action_ret(action_ret)) {
report_bad_irq(irq, desc, action_ret);
return;
}

+ /*
+ * We cannot call note_interrupt from the threaded handler
+ * because we need to look at the compound of all handlers
+ * (primary and threaded). Aside of that in the threaded
+ * shared case we have no serialization against an incoming
+ * hardware interrupt while we are dealing with a threaded
+ * result.
+ *
+ * So in case a thread is woken, we just note the fact and
+ * defer the analysis to the next hardware interrupt.
+ *
+ * The threaded handlers store whether they sucessfully
+ * handled an interrupt and we check whether that number
+ * changed versus the last invocation.
+ *
+ * We could handle all interrupts with the delayed by one
+ * mechanism, but for the non forced threaded case we'd just
+ * add pointless overhead to the straight hardirq interrupts
+ * for the sake of a few lines less code.
+ */
+ if (action_ret & IRQ_WAKE_THREAD) {
+ /*
+ * There is a thread woken. Check whether one of the
+ * shared primary handlers returned IRQ_HANDLED. If
+ * not we defer the spurious detection to the next
+ * interrupt.
+ */
+ if (action_ret == IRQ_WAKE_THREAD) {
+ int handled;
+ /*
+ * We use bit 31 of thread_handled_last to
+ * denote the deferred spurious detection
+ * active. No locking necessary as
+ * thread_handled_last is only accessed here
+ * and we have the guarantee that hard
+ * interrupts are not reentrant.
+ */
+ if (!(desc->threads_handled_last & SPURIOUS_DEFERRED)) {
+ desc->threads_handled_last |= SPURIOUS_DEFERRED;
+ return;
+ }
+ /*
+ * Check whether one of the threaded handlers
+ * returned IRQ_HANDLED since the last
+ * interrupt happened.
+ *
+ * For simplicity we just set bit 31, as it is
+ * set in threads_handled_last as well. So we
+ * avoid extra masking. And we really do not
+ * care about the high bits of the handled
+ * count. We just care about the count being
+ * different than the one we saw before.
+ */
+ handled = atomic_read(&desc->threads_handled);
+ handled |= SPURIOUS_DEFERRED;
+ if (handled != desc->threads_handled_last) {
+ action_ret = IRQ_HANDLED;
+ /*
+ * Note: We keep the SPURIOUS_DEFERRED
+ * bit set. We are handling the
+ * previous invocation right now.
+ * Keep it for the current one, so the
+ * next hardware interrupt will
+ * account for it.
+ */
+ desc->threads_handled_last = handled;
+ } else {
+ /*
+ * None of the threaded handlers felt
+ * responsible for the last interrupt
+ *
+ * We keep the SPURIOUS_DEFERRED bit
+ * set in threads_handled_last as we
+ * need to account for the current
+ * interrupt as well.
+ */
+ action_ret = IRQ_NONE;
+ }
+ } else {
+ /*
+ * One of the primary handlers returned
+ * IRQ_HANDLED. So we don't care about the
+ * threaded handlers on the same line. Clear
+ * the deferred detection bit.
+ *
+ * In theory we could/should check whether the
+ * deferred bit is set and take the result of
+ * the previous run into account here as
+ * well. But it's really not worth the
+ * trouble. If every other interrupt is
+ * handled we never trigger the spurious
+ * detector. And if this is just the one out
+ * of 100k unhandled ones which is handled
+ * then we merily delay the spurious detection
+ * by one hard interrupt. Not a real problem.
+ */
+ desc->threads_handled_last &= ~SPURIOUS_DEFERRED;
+ }
+ }
+
if (unlikely(action_ret == IRQ_NONE)) {
/*
* If we are seeing only the odd spurious IRQ caused by
diff --git a/kernel/rtmutex-debug.h b/kernel/rtmutex-debug.h
index 14193d596d78..ab29b6a22669 100644
--- a/kernel/rtmutex-debug.h
+++ b/kernel/rtmutex-debug.h
@@ -31,3 +31,8 @@ static inline int debug_rt_mutex_detect_deadlock(struct rt_mutex_waiter *waiter,
{
return (waiter != NULL);
}
+
+static inline void rt_mutex_print_deadlock(struct rt_mutex_waiter *w)
+{
+ debug_rt_mutex_print_deadlock(w);
+}
diff --git a/kernel/rtmutex.c b/kernel/rtmutex.c
index 16d5356ce45b..1029a85b2c64 100644
--- a/kernel/rtmutex.c
+++ b/kernel/rtmutex.c
@@ -196,7 +196,7 @@ static int rt_mutex_adjust_prio_chain(struct task_struct *task,
}
put_task_struct(task);

- return deadlock_detect ? -EDEADLK : 0;
+ return -EDEADLK;
}
retry:
/*
@@ -259,7 +259,7 @@ static int rt_mutex_adjust_prio_chain(struct task_struct *task,
if (lock == orig_lock || rt_mutex_owner(lock) == top_task) {
debug_rt_mutex_deadlock(deadlock_detect, orig_waiter, lock);
raw_spin_unlock(&lock->wait_lock);
- ret = deadlock_detect ? -EDEADLK : 0;
+ ret = -EDEADLK;
goto out_unlock_pi;
}

@@ -433,7 +433,7 @@ static int task_blocks_on_rt_mutex(struct rt_mutex *lock,
* which is wrong, as the other waiter is not in a deadlock
* situation.
*/
- if (detect_deadlock && owner == task)
+ if (owner == task)
return -EDEADLK;

raw_spin_lock_irqsave(&task->pi_lock, flags);
@@ -650,6 +650,26 @@ __rt_mutex_slowlock(struct rt_mutex *lock, int state,
return ret;
}

+static void rt_mutex_handle_deadlock(int res, int detect_deadlock,
+ struct rt_mutex_waiter *w)
+{
+ /*
+ * If the result is not -EDEADLOCK or the caller requested
+ * deadlock detection, nothing to do here.
+ */
+ if (res != -EDEADLOCK || detect_deadlock)
+ return;
+
+ /*
+ * Yell lowdly and stop the task right here.
+ */
+ rt_mutex_print_deadlock(w);
+ while (1) {
+ set_current_state(TASK_INTERRUPTIBLE);
+ schedule();
+ }
+}
+
/*
* Slow path lock function:
*/
@@ -687,8 +707,10 @@ rt_mutex_slowlock(struct rt_mutex *lock, int state,

set_current_state(TASK_RUNNING);

- if (unlikely(ret))
+ if (unlikely(ret)) {
remove_waiter(lock, &waiter);
+ rt_mutex_handle_deadlock(ret, detect_deadlock, &waiter);
+ }

/*
* try_to_take_rt_mutex() sets the waiter bit
@@ -996,7 +1018,8 @@ int rt_mutex_start_proxy_lock(struct rt_mutex *lock,
return 1;
}

- ret = task_blocks_on_rt_mutex(lock, waiter, task, detect_deadlock);
+ /* We enforce deadlock detection for futexes */
+ ret = task_blocks_on_rt_mutex(lock, waiter, task, 1);

if (ret && !rt_mutex_owner(lock)) {
/*
diff --git a/kernel/rtmutex.h b/kernel/rtmutex.h
index a1a1dd06421d..f6a1f3c133b1 100644
--- a/kernel/rtmutex.h
+++ b/kernel/rtmutex.h
@@ -24,3 +24,8 @@
#define debug_rt_mutex_print_deadlock(w) do { } while (0)
#define debug_rt_mutex_detect_deadlock(w,d) (d)
#define debug_rt_mutex_reset_waiter(w) do { } while (0)
+
+static inline void rt_mutex_print_deadlock(struct rt_mutex_waiter *w)
+{
+ WARN(1, "rtmutex deadlock detected\n");
+}
diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index e8a1516cc0a3..9e62bdc9b095 100644
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -714,8 +714,10 @@ static bool can_stop_idle_tick(int cpu, struct tick_sched *ts)
return false;
}

- if (unlikely(ts->nohz_mode == NOHZ_MODE_INACTIVE))
+ if (unlikely(ts->nohz_mode == NOHZ_MODE_INACTIVE)) {
+ ts->sleep_length = (ktime_t) { .tv64 = NSEC_PER_SEC/HZ };
return false;
+ }

if (need_resched())
return false;
diff --git a/lib/idr.c b/lib/idr.c
index bfe4db4e165f..674c30bc2ed0 100644
--- a/lib/idr.c
+++ b/lib/idr.c
@@ -250,7 +250,7 @@ static int sub_alloc(struct idr *idp, int *starting_id, struct idr_layer **pa,
id = (id | ((1 << (IDR_BITS * l)) - 1)) + 1;

/* if already at the top layer, we need to grow */
- if (id >= 1 << (idp->layers * IDR_BITS)) {
+ if (id > idr_max(idp->layers)) {
*starting_id = id;
return -EAGAIN;
}
@@ -827,12 +827,10 @@ void *idr_replace(struct idr *idp, void *ptr, int id)
if (!p)
return ERR_PTR(-EINVAL);

- n = (p->layer+1) * IDR_BITS;
-
- if (id >= (1 << n))
+ if (id > idr_max(p->layer + 1))
return ERR_PTR(-EINVAL);

- n -= IDR_BITS;
+ n = p->layer * IDR_BITS;
while ((n > 0) && p) {
p = p->ary[(id >> n) & IDR_MASK];
n -= IDR_BITS;
diff --git a/lib/lzo/lzo1x_decompress_safe.c b/lib/lzo/lzo1x_decompress_safe.c
index 569985d522d5..8563081e8da3 100644
--- a/lib/lzo/lzo1x_decompress_safe.c
+++ b/lib/lzo/lzo1x_decompress_safe.c
@@ -19,11 +19,31 @@
#include <linux/lzo.h>
#include "lzodefs.h"

-#define HAVE_IP(x) ((size_t)(ip_end - ip) >= (size_t)(x))
-#define HAVE_OP(x) ((size_t)(op_end - op) >= (size_t)(x))
-#define NEED_IP(x) if (!HAVE_IP(x)) goto input_overrun
-#define NEED_OP(x) if (!HAVE_OP(x)) goto output_overrun
-#define TEST_LB(m_pos) if ((m_pos) < out) goto lookbehind_overrun
+#define HAVE_IP(t, x) \
+ (((size_t)(ip_end - ip) >= (size_t)(t + x)) && \
+ (((t + x) >= t) && ((t + x) >= x)))
+
+#define HAVE_OP(t, x) \
+ (((size_t)(op_end - op) >= (size_t)(t + x)) && \
+ (((t + x) >= t) && ((t + x) >= x)))
+
+#define NEED_IP(t, x) \
+ do { \
+ if (!HAVE_IP(t, x)) \
+ goto input_overrun; \
+ } while (0)
+
+#define NEED_OP(t, x) \
+ do { \
+ if (!HAVE_OP(t, x)) \
+ goto output_overrun; \
+ } while (0)
+
+#define TEST_LB(m_pos) \
+ do { \
+ if ((m_pos) < out) \
+ goto lookbehind_overrun; \
+ } while (0)

int lzo1x_decompress_safe(const unsigned char *in, size_t in_len,
unsigned char *out, size_t *out_len)
@@ -58,14 +78,14 @@ int lzo1x_decompress_safe(const unsigned char *in, size_t in_len,
while (unlikely(*ip == 0)) {
t += 255;
ip++;
- NEED_IP(1);
+ NEED_IP(1, 0);
}
t += 15 + *ip++;
}
t += 3;
copy_literal_run:
#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS)
- if (likely(HAVE_IP(t + 15) && HAVE_OP(t + 15))) {
+ if (likely(HAVE_IP(t, 15) && HAVE_OP(t, 15))) {
const unsigned char *ie = ip + t;
unsigned char *oe = op + t;
do {
@@ -81,8 +101,8 @@ copy_literal_run:
} else
#endif
{
- NEED_OP(t);
- NEED_IP(t + 3);
+ NEED_OP(t, 0);
+ NEED_IP(t, 3);
do {
*op++ = *ip++;
} while (--t > 0);
@@ -95,7 +115,7 @@ copy_literal_run:
m_pos -= t >> 2;
m_pos -= *ip++ << 2;
TEST_LB(m_pos);
- NEED_OP(2);
+ NEED_OP(2, 0);
op[0] = m_pos[0];
op[1] = m_pos[1];
op += 2;
@@ -119,10 +139,10 @@ copy_literal_run:
while (unlikely(*ip == 0)) {
t += 255;
ip++;
- NEED_IP(1);
+ NEED_IP(1, 0);
}
t += 31 + *ip++;
- NEED_IP(2);
+ NEED_IP(2, 0);
}
m_pos = op - 1;
next = get_unaligned_le16(ip);
@@ -137,10 +157,10 @@ copy_literal_run:
while (unlikely(*ip == 0)) {
t += 255;
ip++;
- NEED_IP(1);
+ NEED_IP(1, 0);
}
t += 7 + *ip++;
- NEED_IP(2);
+ NEED_IP(2, 0);
}
next = get_unaligned_le16(ip);
ip += 2;
@@ -154,7 +174,7 @@ copy_literal_run:
#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS)
if (op - m_pos >= 8) {
unsigned char *oe = op + t;
- if (likely(HAVE_OP(t + 15))) {
+ if (likely(HAVE_OP(t, 15))) {
do {
COPY8(op, m_pos);
op += 8;
@@ -164,7 +184,7 @@ copy_literal_run:
m_pos += 8;
} while (op < oe);
op = oe;
- if (HAVE_IP(6)) {
+ if (HAVE_IP(6, 0)) {
state = next;
COPY4(op, ip);
op += next;
@@ -172,7 +192,7 @@ copy_literal_run:
continue;
}
} else {
- NEED_OP(t);
+ NEED_OP(t, 0);
do {
*op++ = *m_pos++;
} while (op < oe);
@@ -181,7 +201,7 @@ copy_literal_run:
#endif
{
unsigned char *oe = op + t;
- NEED_OP(t);
+ NEED_OP(t, 0);
op[0] = m_pos[0];
op[1] = m_pos[1];
op += 2;
@@ -194,15 +214,15 @@ match_next:
state = next;
t = next;
#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS)
- if (likely(HAVE_IP(6) && HAVE_OP(4))) {
+ if (likely(HAVE_IP(6, 0) && HAVE_OP(4, 0))) {
COPY4(op, ip);
op += t;
ip += t;
} else
#endif
{
- NEED_IP(t + 3);
- NEED_OP(t);
+ NEED_IP(t, 3);
+ NEED_OP(t, 0);
while (t > 0) {
*op++ = *ip++;
t--;
diff --git a/lib/nlattr.c b/lib/nlattr.c
index fc6754720ced..10ad042d01be 100644
--- a/lib/nlattr.c
+++ b/lib/nlattr.c
@@ -201,8 +201,8 @@ int nla_parse(struct nlattr **tb, int maxtype, const struct nlattr *head,
}

if (unlikely(rem > 0))
- printk(KERN_WARNING "netlink: %d bytes leftover after parsing "
- "attributes.\n", rem);
+ pr_warn_ratelimited("netlink: %d bytes leftover after parsing attributes in process `%s'.\n",
+ rem, current->comm);

err = 0;
errout:
diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index 9a5150d2e937..159b4506f042 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -208,9 +208,9 @@ static int kill_proc(struct task_struct *t, unsigned long addr, int trapno,
#endif
si.si_addr_lsb = compound_trans_order(compound_head(page)) + PAGE_SHIFT;

- if ((flags & MF_ACTION_REQUIRED) && t == current) {
+ if ((flags & MF_ACTION_REQUIRED) && t->mm == current->mm) {
si.si_code = BUS_MCEERR_AR;
- ret = force_sig_info(SIGBUS, &si, t);
+ ret = force_sig_info(SIGBUS, &si, current);
} else {
/*
* Don't use force here, it's convenient if the signal
@@ -382,20 +382,51 @@ static void kill_procs(struct list_head *to_kill, int forcekill, int trapno,
}
}

-static int task_early_kill(struct task_struct *tsk)
+/*
+ * Find a dedicated thread which is supposed to handle SIGBUS(BUS_MCEERR_AO)
+ * on behalf of the thread group. Return task_struct of the (first found)
+ * dedicated thread if found, and return NULL otherwise.
+ *
+ * We already hold read_lock(&tasklist_lock) in the caller, so we don't
+ * have to call rcu_read_lock/unlock() in this function.
+ */
+static struct task_struct *find_early_kill_thread(struct task_struct *tsk)
{
+ struct task_struct *t;
+
+ for_each_thread(tsk, t)
+ if ((t->flags & PF_MCE_PROCESS) && (t->flags & PF_MCE_EARLY))
+ return t;
+ return NULL;
+}
+
+/*
+ * Determine whether a given process is "early kill" process which expects
+ * to be signaled when some page under the process is hwpoisoned.
+ * Return task_struct of the dedicated thread (main thread unless explicitly
+ * specified) if the process is "early kill," and otherwise returns NULL.
+ */
+static struct task_struct *task_early_kill(struct task_struct *tsk,
+ int force_early)
+{
+ struct task_struct *t;
if (!tsk->mm)
- return 0;
- if (tsk->flags & PF_MCE_PROCESS)
- return !!(tsk->flags & PF_MCE_EARLY);
- return sysctl_memory_failure_early_kill;
+ return NULL;
+ if (force_early)
+ return tsk;
+ t = find_early_kill_thread(tsk);
+ if (t)
+ return t;
+ if (sysctl_memory_failure_early_kill)
+ return tsk;
+ return NULL;
}

/*
* Collect processes when the error hit an anonymous page.
*/
static void collect_procs_anon(struct page *page, struct list_head *to_kill,
- struct to_kill **tkc)
+ struct to_kill **tkc, int force_early)
{
struct vm_area_struct *vma;
struct task_struct *tsk;
@@ -410,16 +441,17 @@ static void collect_procs_anon(struct page *page, struct list_head *to_kill,
read_lock(&tasklist_lock);
for_each_process (tsk) {
struct anon_vma_chain *vmac;
+ struct task_struct *t = task_early_kill(tsk, force_early);

- if (!task_early_kill(tsk))
+ if (!t)
continue;
anon_vma_interval_tree_foreach(vmac, &av->rb_root,
pgoff, pgoff) {
vma = vmac->vma;
if (!page_mapped_in_vma(page, vma))
continue;
- if (vma->vm_mm == tsk->mm)
- add_to_kill(tsk, page, vma, to_kill, tkc);
+ if (vma->vm_mm == t->mm)
+ add_to_kill(t, page, vma, to_kill, tkc);
}
}
read_unlock(&tasklist_lock);
@@ -430,7 +462,7 @@ static void collect_procs_anon(struct page *page, struct list_head *to_kill,
* Collect processes when the error hit a file mapped page.
*/
static void collect_procs_file(struct page *page, struct list_head *to_kill,
- struct to_kill **tkc)
+ struct to_kill **tkc, int force_early)
{
struct vm_area_struct *vma;
struct task_struct *tsk;
@@ -440,10 +472,10 @@ static void collect_procs_file(struct page *page, struct list_head *to_kill,
read_lock(&tasklist_lock);
for_each_process(tsk) {
pgoff_t pgoff = page->index << (PAGE_CACHE_SHIFT - PAGE_SHIFT);
+ struct task_struct *t = task_early_kill(tsk, force_early);

- if (!task_early_kill(tsk))
+ if (!t)
continue;
-
vma_interval_tree_foreach(vma, &mapping->i_mmap, pgoff,
pgoff) {
/*
@@ -453,8 +485,8 @@ static void collect_procs_file(struct page *page, struct list_head *to_kill,
* Assume applications who requested early kill want
* to be informed of all such data corruptions.
*/
- if (vma->vm_mm == tsk->mm)
- add_to_kill(tsk, page, vma, to_kill, tkc);
+ if (vma->vm_mm == t->mm)
+ add_to_kill(t, page, vma, to_kill, tkc);
}
}
read_unlock(&tasklist_lock);
@@ -467,7 +499,8 @@ static void collect_procs_file(struct page *page, struct list_head *to_kill,
* First preallocate one tokill structure outside the spin locks,
* so that we can kill at least one process reasonably reliable.
*/
-static void collect_procs(struct page *page, struct list_head *tokill)
+static void collect_procs(struct page *page, struct list_head *tokill,
+ int force_early)
{
struct to_kill *tk;

@@ -478,9 +511,9 @@ static void collect_procs(struct page *page, struct list_head *tokill)
if (!tk)
return;
if (PageAnon(page))
- collect_procs_anon(page, tokill, &tk);
+ collect_procs_anon(page, tokill, &tk, force_early);
else
- collect_procs_file(page, tokill, &tk);
+ collect_procs_file(page, tokill, &tk, force_early);
kfree(tk);
}

@@ -965,7 +998,7 @@ static int hwpoison_user_mappings(struct page *p, unsigned long pfn,
* there's nothing that can be done.
*/
if (kill)
- collect_procs(ppage, &tokill);
+ collect_procs(ppage, &tokill, flags & MF_ACTION_REQUIRED);

ret = try_to_unmap(ppage, ttu);
if (ret != SWAP_SUCCESS)
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index ad494ae5703f..38133ceefea5 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -2244,7 +2244,7 @@ int test_clear_page_writeback(struct page *page)
return ret;
}

-int test_set_page_writeback(struct page *page)
+int __test_set_page_writeback(struct page *page, bool keep_write)
{
struct address_space *mapping = page_mapping(page);
int ret;
@@ -2266,9 +2266,10 @@ int test_set_page_writeback(struct page *page)
radix_tree_tag_clear(&mapping->page_tree,
page_index(page),
PAGECACHE_TAG_DIRTY);
- radix_tree_tag_clear(&mapping->page_tree,
- page_index(page),
- PAGECACHE_TAG_TOWRITE);
+ if (!keep_write)
+ radix_tree_tag_clear(&mapping->page_tree,
+ page_index(page),
+ PAGECACHE_TAG_TOWRITE);
spin_unlock_irqrestore(&mapping->tree_lock, flags);
} else {
ret = TestSetPageWriteback(page);
@@ -2278,7 +2279,7 @@ int test_set_page_writeback(struct page *page)
return ret;

}
-EXPORT_SYMBOL(test_set_page_writeback);
+EXPORT_SYMBOL(__test_set_page_writeback);

/*
* Return true if any of the pages in the mapping are marked with the
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index b100255dedda..4b545f5595e4 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -5847,53 +5847,65 @@ static inline int pfn_to_bitidx(struct zone *zone, unsigned long pfn)
* @end_bitidx: The last bit of interest
* returns pageblock_bits flags
*/
-unsigned long get_pageblock_flags_group(struct page *page,
- int start_bitidx, int end_bitidx)
+unsigned long get_pageblock_flags_mask(struct page *page,
+ unsigned long end_bitidx,
+ unsigned long mask)
{
struct zone *zone;
unsigned long *bitmap;
- unsigned long pfn, bitidx;
- unsigned long flags = 0;
- unsigned long value = 1;
+ unsigned long pfn, bitidx, word_bitidx;
+ unsigned long word;

zone = page_zone(page);
pfn = page_to_pfn(page);
bitmap = get_pageblock_bitmap(zone, pfn);
bitidx = pfn_to_bitidx(zone, pfn);
+ word_bitidx = bitidx / BITS_PER_LONG;
+ bitidx &= (BITS_PER_LONG-1);

- for (; start_bitidx <= end_bitidx; start_bitidx++, value <<= 1)
- if (test_bit(bitidx + start_bitidx, bitmap))
- flags |= value;
-
- return flags;
+ word = bitmap[word_bitidx];
+ bitidx += end_bitidx;
+ return (word >> (BITS_PER_LONG - bitidx - 1)) & mask;
}

/**
- * set_pageblock_flags_group - Set the requested group of flags for a pageblock_nr_pages block of pages
+ * set_pageblock_flags_mask - Set the requested group of flags for a pageblock_nr_pages block of pages
* @page: The page within the block of interest
* @start_bitidx: The first bit of interest
* @end_bitidx: The last bit of interest
* @flags: The flags to set
*/
-void set_pageblock_flags_group(struct page *page, unsigned long flags,
- int start_bitidx, int end_bitidx)
+void set_pageblock_flags_mask(struct page *page, unsigned long flags,
+ unsigned long end_bitidx,
+ unsigned long mask)
{
struct zone *zone;
unsigned long *bitmap;
- unsigned long pfn, bitidx;
- unsigned long value = 1;
+ unsigned long pfn, bitidx, word_bitidx;
+ unsigned long old_word, word;
+
+ BUILD_BUG_ON(NR_PAGEBLOCK_BITS != 4);

zone = page_zone(page);
pfn = page_to_pfn(page);
bitmap = get_pageblock_bitmap(zone, pfn);
bitidx = pfn_to_bitidx(zone, pfn);
+ word_bitidx = bitidx / BITS_PER_LONG;
+ bitidx &= (BITS_PER_LONG-1);
+
VM_BUG_ON(!zone_spans_pfn(zone, pfn));

- for (; start_bitidx <= end_bitidx; start_bitidx++, value <<= 1)
- if (flags & value)
- __set_bit(bitidx + start_bitidx, bitmap);
- else
- __clear_bit(bitidx + start_bitidx, bitmap);
+ bitidx += end_bitidx;
+ mask <<= (BITS_PER_LONG - bitidx - 1);
+ flags <<= (BITS_PER_LONG - bitidx - 1);
+
+ word = ACCESS_ONCE(bitmap[word_bitidx]);
+ for (;;) {
+ old_word = cmpxchg(&bitmap[word_bitidx], word, (word & ~mask) | flags);
+ if (word == old_word)
+ break;
+ word = old_word;
+ }
}

/*
diff --git a/mm/rmap.c b/mm/rmap.c
index f23ea5f31a31..e9e8ca242bf4 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -103,6 +103,7 @@ static inline void anon_vma_free(struct anon_vma *anon_vma)
* LOCK should suffice since the actual taking of the lock must
* happen _before_ what follows.
*/
+ might_sleep();
if (rwsem_is_locked(&anon_vma->root->rwsem)) {
anon_vma_lock_write(anon_vma);
anon_vma_unlock_write(anon_vma);
@@ -426,8 +427,9 @@ struct anon_vma *page_get_anon_vma(struct page *page)
* above cannot corrupt).
*/
if (!page_mapped(page)) {
+ rcu_read_unlock();
put_anon_vma(anon_vma);
- anon_vma = NULL;
+ return NULL;
}
out:
rcu_read_unlock();
@@ -477,9 +479,9 @@ struct anon_vma *page_lock_anon_vma_read(struct page *page)
}

if (!page_mapped(page)) {
+ rcu_read_unlock();
put_anon_vma(anon_vma);
- anon_vma = NULL;
- goto out;
+ return NULL;
}

/* we pinned the anon_vma, its safe to sleep */
diff --git a/mm/vmscan.c b/mm/vmscan.c
index 65cbae5b85c4..b4241b7d7f07 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -2431,10 +2431,17 @@ static bool pfmemalloc_watermark_ok(pg_data_t *pgdat)

for (i = 0; i <= ZONE_NORMAL; i++) {
zone = &pgdat->node_zones[i];
+ if (!populated_zone(zone))
+ continue;
+
pfmemalloc_reserve += min_wmark_pages(zone);
free_pages += zone_page_state(zone, NR_FREE_PAGES);
}

+ /* If there are no reserves (unexpected config) then do not throttle */
+ if (!pfmemalloc_reserve)
+ return true;
+
wmark_ok = free_pages > pfmemalloc_reserve / 2;

/* kswapd must be awake if processes are being throttled */
@@ -2459,9 +2466,9 @@ static bool pfmemalloc_watermark_ok(pg_data_t *pgdat)
static bool throttle_direct_reclaim(gfp_t gfp_mask, struct zonelist *zonelist,
nodemask_t *nodemask)
{
+ struct zoneref *z;
struct zone *zone;
- int high_zoneidx = gfp_zone(gfp_mask);
- pg_data_t *pgdat;
+ pg_data_t *pgdat = NULL;

/*
* Kernel threads should not be throttled as they may be indirectly
@@ -2480,10 +2487,34 @@ static bool throttle_direct_reclaim(gfp_t gfp_mask, struct zonelist *zonelist,
if (fatal_signal_pending(current))
goto out;

- /* Check if the pfmemalloc reserves are ok */
- first_zones_zonelist(zonelist, high_zoneidx, NULL, &zone);
- pgdat = zone->zone_pgdat;
- if (pfmemalloc_watermark_ok(pgdat))
+ /*
+ * Check if the pfmemalloc reserves are ok by finding the first node
+ * with a usable ZONE_NORMAL or lower zone. The expectation is that
+ * GFP_KERNEL will be required for allocating network buffers when
+ * swapping over the network so ZONE_HIGHMEM is unusable.
+ *
+ * Throttling is based on the first usable node and throttled processes
+ * wait on a queue until kswapd makes progress and wakes them. There
+ * is an affinity then between processes waking up and where reclaim
+ * progress has been made assuming the process wakes on the same node.
+ * More importantly, processes running on remote nodes will not compete
+ * for remote pfmemalloc reserves and processes on different nodes
+ * should make reasonable progress.
+ */
+ for_each_zone_zonelist_nodemask(zone, z, zonelist,
+ gfp_mask, nodemask) {
+ if (zone_idx(zone) > ZONE_NORMAL)
+ continue;
+
+ /* Throttle based on the first usable node */
+ pgdat = zone->zone_pgdat;
+ if (pfmemalloc_watermark_ok(pgdat))
+ goto out;
+ break;
+ }
+
+ /* If no zone was usable by the allocation flags then do not throttle */
+ if (!pgdat)
goto out;

/* Account for the throttling */
@@ -3216,7 +3247,10 @@ static int kswapd(void *p)
}
}

+ tsk->flags &= ~(PF_MEMALLOC | PF_SWAPWRITE | PF_KSWAPD);
current->reclaim_state = NULL;
+ lockdep_clear_current_reclaim_state();
+
return 0;
}

diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 0098af80b213..07c9aea21244 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -949,13 +949,16 @@ static struct l2cap_chan *l2cap_sock_new_connection_cb(struct l2cap_chan *chan)
/* Check for backlog size */
if (sk_acceptq_is_full(parent)) {
BT_DBG("backlog full %d", parent->sk_ack_backlog);
+ release_sock(parent);
return NULL;
}

sk = l2cap_sock_alloc(sock_net(parent), NULL, BTPROTO_L2CAP,
GFP_ATOMIC);
- if (!sk)
+ if (!sk) {
+ release_sock(parent);
return NULL;
+ }

bt_sock_reclassify_lock(sk, BTPROTO_L2CAP);

diff --git a/net/can/gw.c b/net/can/gw.c
index 2f291f961a17..6bdc265fe08f 100644
--- a/net/can/gw.c
+++ b/net/can/gw.c
@@ -784,7 +784,7 @@ static int cgw_create_job(struct sk_buff *skb, struct nlmsghdr *nlh)
struct cgw_job *gwj;
int err = 0;

- if (!capable(CAP_NET_ADMIN))
+ if (!netlink_capable(skb, CAP_NET_ADMIN))
return -EPERM;

if (nlmsg_len(nlh) < sizeof(*r))
@@ -876,7 +876,7 @@ static int cgw_remove_job(struct sk_buff *skb, struct nlmsghdr *nlh)
struct can_can_gw ccgw;
int err = 0;

- if (!capable(CAP_NET_ADMIN))
+ if (!netlink_capable(skb, CAP_NET_ADMIN))
return -EPERM;

if (nlmsg_len(nlh) < sizeof(*r))
diff --git a/net/core/dev.c b/net/core/dev.c
index 363e06e58c81..fe78e8c2fb3c 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -5964,6 +5964,9 @@ EXPORT_SYMBOL(unregister_netdevice_queue);
/**
* unregister_netdevice_many - unregister many devices
* @head: list of devices
+ *
+ * Note: As most callers use a stack allocated list_head,
+ * we force a list_del() to make sure stack wont be corrupted later.
*/
void unregister_netdevice_many(struct list_head *head)
{
@@ -5973,6 +5976,7 @@ void unregister_netdevice_many(struct list_head *head)
rollback_registered_many(head);
list_for_each_entry(dev, head, unreg_list)
net_set_todo(dev);
+ list_del(head);
}
}
EXPORT_SYMBOL(unregister_netdevice_many);
@@ -6389,7 +6393,6 @@ static void __net_exit default_device_exit_batch(struct list_head *net_list)
}
}
unregister_netdevice_many(&dev_kill_list);
- list_del(&dev_kill_list);
rtnl_unlock();
}

diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index e05052210103..d6eac9f048b9 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -1053,6 +1053,7 @@ static int rtnl_dump_ifinfo(struct sk_buff *skb, struct netlink_callback *cb)
struct nlattr *tb[IFLA_MAX+1];
u32 ext_filter_mask = 0;
int err;
+ int hdrlen;

s_h = cb->args[0];
s_idx = cb->args[1];
@@ -1060,8 +1061,17 @@ static int rtnl_dump_ifinfo(struct sk_buff *skb, struct netlink_callback *cb)
rcu_read_lock();
cb->seq = net->dev_base_seq;

- if (nlmsg_parse(cb->nlh, sizeof(struct ifinfomsg), tb, IFLA_MAX,
- ifla_policy) >= 0) {
+ /* A hack to preserve kernel<->userspace interface.
+ * The correct header is ifinfomsg. It is consistent with rtnl_getlink.
+ * However, before Linux v3.9 the code here assumed rtgenmsg and that's
+ * what iproute2 < v3.9.0 used.
+ * We can detect the old iproute2. Even including the IFLA_EXT_MASK
+ * attribute, its netlink message is shorter than struct ifinfomsg.
+ */
+ hdrlen = nlmsg_len(cb->nlh) < sizeof(struct ifinfomsg) ?
+ sizeof(struct rtgenmsg) : sizeof(struct ifinfomsg);
+
+ if (nlmsg_parse(cb->nlh, hdrlen, tb, IFLA_MAX, ifla_policy) >= 0) {

if (tb[IFLA_EXT_MASK])
ext_filter_mask = nla_get_u32(tb[IFLA_EXT_MASK]);
@@ -1312,7 +1322,8 @@ static int do_set_master(struct net_device *dev, int ifindex)
return 0;
}

-static int do_setlink(struct net_device *dev, struct ifinfomsg *ifm,
+static int do_setlink(const struct sk_buff *skb,
+ struct net_device *dev, struct ifinfomsg *ifm,
struct nlattr **tb, char *ifname, int modified)
{
const struct net_device_ops *ops = dev->netdev_ops;
@@ -1324,7 +1335,7 @@ static int do_setlink(struct net_device *dev, struct ifinfomsg *ifm,
err = PTR_ERR(net);
goto errout;
}
- if (!ns_capable(net->user_ns, CAP_NET_ADMIN)) {
+ if (!netlink_ns_capable(skb, net->user_ns, CAP_NET_ADMIN)) {
err = -EPERM;
goto errout;
}
@@ -1578,7 +1589,7 @@ static int rtnl_setlink(struct sk_buff *skb, struct nlmsghdr *nlh)
if (err < 0)
goto errout;

- err = do_setlink(dev, ifm, tb, ifname, 0);
+ err = do_setlink(skb, dev, ifm, tb, ifname, 0);
errout:
return err;
}
@@ -1618,7 +1629,6 @@ static int rtnl_dellink(struct sk_buff *skb, struct nlmsghdr *nlh)

ops->dellink(dev, &list_kill);
unregister_netdevice_many(&list_kill);
- list_del(&list_kill);
return 0;
}

@@ -1696,7 +1706,8 @@ err:
}
EXPORT_SYMBOL(rtnl_create_link);

-static int rtnl_group_changelink(struct net *net, int group,
+static int rtnl_group_changelink(const struct sk_buff *skb,
+ struct net *net, int group,
struct ifinfomsg *ifm,
struct nlattr **tb)
{
@@ -1705,7 +1716,7 @@ static int rtnl_group_changelink(struct net *net, int group,

for_each_netdev(net, dev) {
if (dev->group == group) {
- err = do_setlink(dev, ifm, tb, NULL, 0);
+ err = do_setlink(skb, dev, ifm, tb, NULL, 0);
if (err < 0)
return err;
}
@@ -1807,12 +1818,12 @@ replay:
modified = 1;
}

- return do_setlink(dev, ifm, tb, ifname, modified);
+ return do_setlink(skb, dev, ifm, tb, ifname, modified);
}

if (!(nlh->nlmsg_flags & NLM_F_CREATE)) {
if (ifm->ifi_index == 0 && tb[IFLA_GROUP])
- return rtnl_group_changelink(net,
+ return rtnl_group_changelink(skb, net,
nla_get_u32(tb[IFLA_GROUP]),
ifm, tb);
return -ENODEV;
@@ -1924,9 +1935,13 @@ static u16 rtnl_calcit(struct sk_buff *skb, struct nlmsghdr *nlh)
struct nlattr *tb[IFLA_MAX+1];
u32 ext_filter_mask = 0;
u16 min_ifinfo_dump_size = 0;
+ int hdrlen;
+
+ /* Same kernel<->userspace interface hack as in rtnl_dump_ifinfo. */
+ hdrlen = nlmsg_len(nlh) < sizeof(struct ifinfomsg) ?
+ sizeof(struct rtgenmsg) : sizeof(struct ifinfomsg);

- if (nlmsg_parse(nlh, sizeof(struct ifinfomsg), tb, IFLA_MAX,
- ifla_policy) >= 0) {
+ if (nlmsg_parse(nlh, hdrlen, tb, IFLA_MAX, ifla_policy) >= 0) {
if (tb[IFLA_EXT_MASK])
ext_filter_mask = nla_get_u32(tb[IFLA_EXT_MASK]);
}
@@ -2193,7 +2208,7 @@ static int rtnl_fdb_del(struct sk_buff *skb, struct nlmsghdr *nlh)
int err = -EINVAL;
__u8 *addr;

- if (!capable(CAP_NET_ADMIN))
+ if (!netlink_capable(skb, CAP_NET_ADMIN))
return -EPERM;

err = nlmsg_parse(nlh, sizeof(*ndm), tb, NDA_MAX, NULL);
@@ -2645,7 +2660,7 @@ static int rtnetlink_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
sz_idx = type>>2;
kind = type&3;

- if (kind != 2 && !ns_capable(net->user_ns, CAP_NET_ADMIN))
+ if (kind != 2 && !netlink_net_capable(skb, CAP_NET_ADMIN))
return -EPERM;

if (kind == 2 && nlh->nlmsg_flags&NLM_F_DUMP) {
diff --git a/net/core/sock.c b/net/core/sock.c
index 0e2b67e5c903..b384ce6cda2a 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -144,6 +144,55 @@
static DEFINE_MUTEX(proto_list_mutex);
static LIST_HEAD(proto_list);

+/**
+ * sk_ns_capable - General socket capability test
+ * @sk: Socket to use a capability on or through
+ * @user_ns: The user namespace of the capability to use
+ * @cap: The capability to use
+ *
+ * Test to see if the opener of the socket had when the socket was
+ * created and the current process has the capability @cap in the user
+ * namespace @user_ns.
+ */
+bool sk_ns_capable(const struct sock *sk,
+ struct user_namespace *user_ns, int cap)
+{
+ return file_ns_capable(sk->sk_socket->file, user_ns, cap) &&
+ ns_capable(user_ns, cap);
+}
+EXPORT_SYMBOL(sk_ns_capable);
+
+/**
+ * sk_capable - Socket global capability test
+ * @sk: Socket to use a capability on or through
+ * @cap: The global capbility to use
+ *
+ * Test to see if the opener of the socket had when the socket was
+ * created and the current process has the capability @cap in all user
+ * namespaces.
+ */
+bool sk_capable(const struct sock *sk, int cap)
+{
+ return sk_ns_capable(sk, &init_user_ns, cap);
+}
+EXPORT_SYMBOL(sk_capable);
+
+/**
+ * sk_net_capable - Network namespace socket capability test
+ * @sk: Socket to use a capability on or through
+ * @cap: The capability to use
+ *
+ * Test to see if the opener of the socket had when the socke was created
+ * and the current process has the capability @cap over the network namespace
+ * the socket is a member of.
+ */
+bool sk_net_capable(const struct sock *sk, int cap)
+{
+ return sk_ns_capable(sk, sock_net(sk)->user_ns, cap);
+}
+EXPORT_SYMBOL(sk_net_capable);
+
+
#ifdef CONFIG_MEMCG_KMEM
int mem_cgroup_sockets_init(struct mem_cgroup *memcg, struct cgroup_subsys *ss)
{
diff --git a/net/core/sock_diag.c b/net/core/sock_diag.c
index 6a7fae228634..c38e7a2b5a8e 100644
--- a/net/core/sock_diag.c
+++ b/net/core/sock_diag.c
@@ -49,7 +49,7 @@ int sock_diag_put_meminfo(struct sock *sk, struct sk_buff *skb, int attrtype)
}
EXPORT_SYMBOL_GPL(sock_diag_put_meminfo);

-int sock_diag_put_filterinfo(struct sock *sk,
+int sock_diag_put_filterinfo(bool may_report_filterinfo, struct sock *sk,
struct sk_buff *skb, int attrtype)
{
struct nlattr *attr;
@@ -57,7 +57,7 @@ int sock_diag_put_filterinfo(struct sock *sk,
unsigned int len;
int err = 0;

- if (!ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN)) {
+ if (!may_report_filterinfo) {
nla_reserve(skb, attrtype, 0);
return 0;
}
diff --git a/net/dcb/dcbnl.c b/net/dcb/dcbnl.c
index 40d5829ed36a..1074ffb6d533 100644
--- a/net/dcb/dcbnl.c
+++ b/net/dcb/dcbnl.c
@@ -1670,7 +1670,7 @@ static int dcb_doit(struct sk_buff *skb, struct nlmsghdr *nlh)
struct nlmsghdr *reply_nlh = NULL;
const struct reply_func *fn;

- if ((nlh->nlmsg_type == RTM_SETDCB) && !capable(CAP_NET_ADMIN))
+ if ((nlh->nlmsg_type == RTM_SETDCB) && !netlink_capable(skb, CAP_NET_ADMIN))
return -EPERM;

ret = nlmsg_parse(nlh, sizeof(*dcb), tb, DCB_ATTR_MAX,
diff --git a/net/decnet/dn_dev.c b/net/decnet/dn_dev.c
index dd0dfb25f4b1..70f254912a36 100644
--- a/net/decnet/dn_dev.c
+++ b/net/decnet/dn_dev.c
@@ -573,7 +573,7 @@ static int dn_nl_deladdr(struct sk_buff *skb, struct nlmsghdr *nlh)
struct dn_ifaddr __rcu **ifap;
int err = -EINVAL;

- if (!capable(CAP_NET_ADMIN))
+ if (!netlink_capable(skb, CAP_NET_ADMIN))
return -EPERM;

if (!net_eq(net, &init_net))
@@ -617,7 +617,7 @@ static int dn_nl_newaddr(struct sk_buff *skb, struct nlmsghdr *nlh)
struct dn_ifaddr *ifa;
int err;

- if (!capable(CAP_NET_ADMIN))
+ if (!netlink_capable(skb, CAP_NET_ADMIN))
return -EPERM;

if (!net_eq(net, &init_net))
diff --git a/net/decnet/dn_fib.c b/net/decnet/dn_fib.c
index 57dc159245ec..d332aefb0846 100644
--- a/net/decnet/dn_fib.c
+++ b/net/decnet/dn_fib.c
@@ -505,7 +505,7 @@ static int dn_fib_rtm_delroute(struct sk_buff *skb, struct nlmsghdr *nlh)
struct nlattr *attrs[RTA_MAX+1];
int err;

- if (!capable(CAP_NET_ADMIN))
+ if (!netlink_capable(skb, CAP_NET_ADMIN))
return -EPERM;

if (!net_eq(net, &init_net))
@@ -530,7 +530,7 @@ static int dn_fib_rtm_newroute(struct sk_buff *skb, struct nlmsghdr *nlh)
struct nlattr *attrs[RTA_MAX+1];
int err;

- if (!capable(CAP_NET_ADMIN))
+ if (!netlink_capable(skb, CAP_NET_ADMIN))
return -EPERM;

if (!net_eq(net, &init_net))
diff --git a/net/decnet/netfilter/dn_rtmsg.c b/net/decnet/netfilter/dn_rtmsg.c
index 2a7efe388344..f3dc69a41d63 100644
--- a/net/decnet/netfilter/dn_rtmsg.c
+++ b/net/decnet/netfilter/dn_rtmsg.c
@@ -107,7 +107,7 @@ static inline void dnrmg_receive_user_skb(struct sk_buff *skb)
if (nlh->nlmsg_len < sizeof(*nlh) || skb->len < nlh->nlmsg_len)
return;

- if (!capable(CAP_NET_ADMIN))
+ if (!netlink_capable(skb, CAP_NET_ADMIN))
RCV_SKB_FAIL(-EPERM);

/* Eventually we might send routing messages too */
diff --git a/net/ipv4/datagram.c b/net/ipv4/datagram.c
index 19e36376d2a0..5f3dc1df04bf 100644
--- a/net/ipv4/datagram.c
+++ b/net/ipv4/datagram.c
@@ -86,18 +86,26 @@ out:
}
EXPORT_SYMBOL(ip4_datagram_connect);

+/* Because UDP xmit path can manipulate sk_dst_cache without holding
+ * socket lock, we need to use sk_dst_set() here,
+ * even if we own the socket lock.
+ */
void ip4_datagram_release_cb(struct sock *sk)
{
const struct inet_sock *inet = inet_sk(sk);
const struct ip_options_rcu *inet_opt;
__be32 daddr = inet->inet_daddr;
+ struct dst_entry *dst;
struct flowi4 fl4;
struct rtable *rt;

- if (! __sk_dst_get(sk) || __sk_dst_check(sk, 0))
- return;
-
rcu_read_lock();
+
+ dst = __sk_dst_get(sk);
+ if (!dst || !dst->obsolete || dst->ops->check(dst, 0)) {
+ rcu_read_unlock();
+ return;
+ }
inet_opt = rcu_dereference(inet->inet_opt);
if (inet_opt && inet_opt->opt.srr)
daddr = inet_opt->opt.faddr;
@@ -105,8 +113,10 @@ void ip4_datagram_release_cb(struct sock *sk)
inet->inet_saddr, inet->inet_dport,
inet->inet_sport, sk->sk_protocol,
RT_CONN_FLAGS(sk), sk->sk_bound_dev_if);
- if (!IS_ERR(rt))
- __sk_dst_set(sk, &rt->dst);
+
+ dst = !IS_ERR(rt) ? &rt->dst : NULL;
+ sk_dst_set(sk, dst);
+
rcu_read_unlock();
}
EXPORT_SYMBOL_GPL(ip4_datagram_release_cb);
diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c
index b3ac3c3f6219..30a3e285e807 100644
--- a/net/ipv4/ipip.c
+++ b/net/ipv4/ipip.c
@@ -149,13 +149,13 @@ static int ipip_err(struct sk_buff *skb, u32 info)

if (type == ICMP_DEST_UNREACH && code == ICMP_FRAG_NEEDED) {
ipv4_update_pmtu(skb, dev_net(skb->dev), info,
- t->dev->ifindex, 0, IPPROTO_IPIP, 0);
+ t->parms.link, 0, IPPROTO_IPIP, 0);
err = 0;
goto out;
}

if (type == ICMP_REDIRECT) {
- ipv4_redirect(skb, dev_net(skb->dev), t->dev->ifindex, 0,
+ ipv4_redirect(skb, dev_net(skb->dev), t->parms.link, 0,
IPPROTO_IPIP, 0);
err = 0;
goto out;
@@ -486,4 +486,5 @@ static void __exit ipip_fini(void)
module_init(ipip_init);
module_exit(ipip_fini);
MODULE_LICENSE("GPL");
+MODULE_ALIAS_RTNL_LINK("ipip");
MODULE_ALIAS_NETDEV("tunl0");
diff --git a/net/ipv4/netfilter/ipt_ULOG.c b/net/ipv4/netfilter/ipt_ULOG.c
index cbc22158af49..9cb993cd224b 100644
--- a/net/ipv4/netfilter/ipt_ULOG.c
+++ b/net/ipv4/netfilter/ipt_ULOG.c
@@ -220,6 +220,7 @@ static void ipt_ulog_packet(struct net *net,
ub->qlen++;

pm = nlmsg_data(nlh);
+ memset(pm, 0, sizeof(*pm));

/* We might not have a timestamp, get one */
if (skb->tstamp.tv64 == 0)
@@ -238,8 +239,6 @@ static void ipt_ulog_packet(struct net *net,
}
else if (loginfo->prefix[0] != '\0')
strncpy(pm->prefix, loginfo->prefix, sizeof(pm->prefix));
- else
- *(pm->prefix) = '\0';

if (in && in->hard_header_len > 0 &&
skb->mac_header != skb->network_header &&
@@ -251,13 +250,9 @@ static void ipt_ulog_packet(struct net *net,

if (in)
strncpy(pm->indev_name, in->name, sizeof(pm->indev_name));
- else
- pm->indev_name[0] = '\0';

if (out)
strncpy(pm->outdev_name, out->name, sizeof(pm->outdev_name));
- else
- pm->outdev_name[0] = '\0';

/* copy_len <= skb->len, so can't fail. */
if (skb_copy_bits(skb, 0, pm->payload, copy_len) < 0)
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 723951aec07e..d8e4c81bc114 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -2622,13 +2622,12 @@ static void tcp_process_loss(struct sock *sk, int flag, bool is_dupack)
bool recovered = !before(tp->snd_una, tp->high_seq);

if (tp->frto) { /* F-RTO RFC5682 sec 3.1 (sack enhanced version). */
- if (flag & FLAG_ORIG_SACK_ACKED) {
- /* Step 3.b. A timeout is spurious if not all data are
- * lost, i.e., never-retransmitted data are (s)acked.
- */
- tcp_try_undo_loss(sk, true);
+ /* Step 3.b. A timeout is spurious if not all data are
+ * lost, i.e., never-retransmitted data are (s)acked.
+ */
+ if (tcp_try_undo_loss(sk, flag & FLAG_ORIG_SACK_ACKED))
return;
- }
+
if (after(tp->snd_nxt, tp->high_seq) &&
(flag & FLAG_DATA_SACKED || is_dupack)) {
tp->frto = 0; /* Loss was real: 2nd part of step 3.a */
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index bdbbadcfb4e1..882464d8e9b8 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -61,6 +61,7 @@
MODULE_AUTHOR("Ville Nuorvala");
MODULE_DESCRIPTION("IPv6 tunneling device");
MODULE_LICENSE("GPL");
+MODULE_ALIAS_RTNL_LINK("ip6tnl");
MODULE_ALIAS_NETDEV("ip6tnl0");

#ifdef IP6_TNL_DEBUG
diff --git a/net/ipv6/output_core.c b/net/ipv6/output_core.c
index ab92a3673fbb..39f6ad1629ff 100644
--- a/net/ipv6/output_core.c
+++ b/net/ipv6/output_core.c
@@ -9,7 +9,7 @@
void ipv6_select_ident(struct frag_hdr *fhdr, struct rt6_info *rt)
{
static atomic_t ipv6_fragmentation_id;
- int old, new;
+ int ident;

#if IS_ENABLED(CONFIG_IPV6)
if (rt && !(rt->dst.flags & DST_NOPEER)) {
@@ -25,13 +25,8 @@ void ipv6_select_ident(struct frag_hdr *fhdr, struct rt6_info *rt)
}
}
#endif
- do {
- old = atomic_read(&ipv6_fragmentation_id);
- new = old + 1;
- if (!new)
- new = 1;
- } while (atomic_cmpxchg(&ipv6_fragmentation_id, old, new) != old);
- fhdr->identification = htonl(new);
+ ident = atomic_inc_return(&ipv6_fragmentation_id);
+ fhdr->identification = htonl(ident);
}
EXPORT_SYMBOL(ipv6_select_ident);

diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index bbe14021f80c..eb1e74f35033 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -530,12 +530,12 @@ static int ipip6_err(struct sk_buff *skb, u32 info)

if (type == ICMP_DEST_UNREACH && code == ICMP_FRAG_NEEDED) {
ipv4_update_pmtu(skb, dev_net(skb->dev), info,
- t->dev->ifindex, 0, IPPROTO_IPV6, 0);
+ t->parms.link, 0, IPPROTO_IPV6, 0);
err = 0;
goto out;
}
if (type == ICMP_REDIRECT) {
- ipv4_redirect(skb, dev_net(skb->dev), t->dev->ifindex, 0,
+ ipv4_redirect(skb, dev_net(skb->dev), t->parms.link, 0,
IPPROTO_IPV6, 0);
err = 0;
goto out;
@@ -1777,4 +1777,5 @@ xfrm_tunnel_failed:
module_init(sit_init);
module_exit(sit_cleanup);
MODULE_LICENSE("GPL");
+MODULE_ALIAS_RTNL_LINK("sit");
MODULE_ALIAS_NETDEV("sit0");
diff --git a/net/mac80211/debugfs_netdev.c b/net/mac80211/debugfs_netdev.c
index cafe614ef93d..8e41f0163c5a 100644
--- a/net/mac80211/debugfs_netdev.c
+++ b/net/mac80211/debugfs_netdev.c
@@ -34,8 +34,7 @@ static ssize_t ieee80211_if_read(
ssize_t ret = -EINVAL;

read_lock(&dev_base_lock);
- if (sdata->dev->reg_state == NETREG_REGISTERED)
- ret = (*format)(sdata, buf, sizeof(buf));
+ ret = (*format)(sdata, buf, sizeof(buf));
read_unlock(&dev_base_lock);

if (ret >= 0)
@@ -62,8 +61,7 @@ static ssize_t ieee80211_if_write(

ret = -ENODEV;
rtnl_lock();
- if (sdata->dev->reg_state == NETREG_REGISTERED)
- ret = (*write)(sdata, buf, count);
+ ret = (*write)(sdata, buf, count);
rtnl_unlock();

return ret;
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index cc117591f678..a84e8f55f8ec 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -1754,7 +1754,6 @@ void ieee80211_remove_interfaces(struct ieee80211_local *local)
}
mutex_unlock(&local->iflist_mtx);
unregister_netdevice_many(&unreg_list);
- list_del(&unreg_list);

list_for_each_entry_safe(sdata, tmp, &wdev_list, list) {
list_del(&sdata->list);
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index db41c190e76d..37025725c369 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -271,6 +271,7 @@ void sta_info_free(struct ieee80211_local *local, struct sta_info *sta)

sta_dbg(sta->sdata, "Destroyed STA %pM\n", sta->sta.addr);

+ kfree(rcu_dereference_raw(sta->sta.rates));
kfree(sta);
}

diff --git a/net/netfilter/ipvs/ip_vs_core.c b/net/netfilter/ipvs/ip_vs_core.c
index 1517b50b85d0..42796a6bbac0 100644
--- a/net/netfilter/ipvs/ip_vs_core.c
+++ b/net/netfilter/ipvs/ip_vs_core.c
@@ -1384,15 +1384,19 @@ ip_vs_in_icmp(struct sk_buff *skb, int *related, unsigned int hooknum)

if (ipip) {
__be32 info = ic->un.gateway;
+ __u8 type = ic->type;
+ __u8 code = ic->code;

/* Update the MTU */
if (ic->type == ICMP_DEST_UNREACH &&
ic->code == ICMP_FRAG_NEEDED) {
struct ip_vs_dest *dest = cp->dest;
u32 mtu = ntohs(ic->un.frag.mtu);
+ __be16 frag_off = cih->frag_off;

/* Strip outer IP and ICMP, go to IPIP header */
- __skb_pull(skb, ihl + sizeof(_icmph));
+ if (pskb_pull(skb, ihl + sizeof(_icmph)) == NULL)
+ goto ignore_ipip;
offset2 -= ihl + sizeof(_icmph);
skb_reset_network_header(skb);
IP_VS_DBG(12, "ICMP for IPIP %pI4->%pI4: mtu=%u\n",
@@ -1400,7 +1404,7 @@ ip_vs_in_icmp(struct sk_buff *skb, int *related, unsigned int hooknum)
ipv4_update_pmtu(skb, dev_net(skb->dev),
mtu, 0, 0, 0, 0);
/* Client uses PMTUD? */
- if (!(cih->frag_off & htons(IP_DF)))
+ if (!(frag_off & htons(IP_DF)))
goto ignore_ipip;
/* Prefer the resulting PMTU */
if (dest) {
@@ -1419,12 +1423,13 @@ ip_vs_in_icmp(struct sk_buff *skb, int *related, unsigned int hooknum)
/* Strip outer IP, ICMP and IPIP, go to IP header of
* original request.
*/
- __skb_pull(skb, offset2);
+ if (pskb_pull(skb, offset2) == NULL)
+ goto ignore_ipip;
skb_reset_network_header(skb);
IP_VS_DBG(12, "Sending ICMP for %pI4->%pI4: t=%u, c=%u, i=%u\n",
&ip_hdr(skb)->saddr, &ip_hdr(skb)->daddr,
- ic->type, ic->code, ntohl(info));
- icmp_send(skb, ic->type, ic->code, info);
+ type, code, ntohl(info));
+ icmp_send(skb, type, code, info);
/* ICMP can be shorter but anyways, account it */
ip_vs_out_stats(cp, skb);

diff --git a/net/netfilter/nfnetlink.c b/net/netfilter/nfnetlink.c
index 572d87dc116f..0a03662bfbef 100644
--- a/net/netfilter/nfnetlink.c
+++ b/net/netfilter/nfnetlink.c
@@ -147,7 +147,7 @@ static int nfnetlink_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
const struct nfnetlink_subsystem *ss;
int type, err;

- if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
+ if (!netlink_net_capable(skb, CAP_NET_ADMIN))
return -EPERM;

/* All the messages must at least contain nfgenmsg */
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 90b654b45876..7bbc40b63aa4 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -1334,7 +1334,74 @@ retry:
return err;
}

-static inline int netlink_capable(const struct socket *sock, unsigned int flag)
+/**
+ * __netlink_ns_capable - General netlink message capability test
+ * @nsp: NETLINK_CB of the socket buffer holding a netlink command from userspace.
+ * @user_ns: The user namespace of the capability to use
+ * @cap: The capability to use
+ *
+ * Test to see if the opener of the socket we received the message
+ * from had when the netlink socket was created and the sender of the
+ * message has has the capability @cap in the user namespace @user_ns.
+ */
+bool __netlink_ns_capable(const struct netlink_skb_parms *nsp,
+ struct user_namespace *user_ns, int cap)
+{
+ return ((nsp->flags & NETLINK_SKB_DST) ||
+ file_ns_capable(nsp->sk->sk_socket->file, user_ns, cap)) &&
+ ns_capable(user_ns, cap);
+}
+EXPORT_SYMBOL(__netlink_ns_capable);
+
+/**
+ * netlink_ns_capable - General netlink message capability test
+ * @skb: socket buffer holding a netlink command from userspace
+ * @user_ns: The user namespace of the capability to use
+ * @cap: The capability to use
+ *
+ * Test to see if the opener of the socket we received the message
+ * from had when the netlink socket was created and the sender of the
+ * message has has the capability @cap in the user namespace @user_ns.
+ */
+bool netlink_ns_capable(const struct sk_buff *skb,
+ struct user_namespace *user_ns, int cap)
+{
+ return __netlink_ns_capable(&NETLINK_CB(skb), user_ns, cap);
+}
+EXPORT_SYMBOL(netlink_ns_capable);
+
+/**
+ * netlink_capable - Netlink global message capability test
+ * @skb: socket buffer holding a netlink command from userspace
+ * @cap: The capability to use
+ *
+ * Test to see if the opener of the socket we received the message
+ * from had when the netlink socket was created and the sender of the
+ * message has has the capability @cap in all user namespaces.
+ */
+bool netlink_capable(const struct sk_buff *skb, int cap)
+{
+ return netlink_ns_capable(skb, &init_user_ns, cap);
+}
+EXPORT_SYMBOL(netlink_capable);
+
+/**
+ * netlink_net_capable - Netlink network namespace message capability test
+ * @skb: socket buffer holding a netlink command from userspace
+ * @cap: The capability to use
+ *
+ * Test to see if the opener of the socket we received the message
+ * from had when the netlink socket was created and the sender of the
+ * message has has the capability @cap over the network namespace of
+ * the socket we received the message from.
+ */
+bool netlink_net_capable(const struct sk_buff *skb, int cap)
+{
+ return netlink_ns_capable(skb, sock_net(skb->sk)->user_ns, cap);
+}
+EXPORT_SYMBOL(netlink_net_capable);
+
+static inline int netlink_allowed(const struct socket *sock, unsigned int flag)
{
return (nl_table[sock->sk->sk_protocol].flags & flag) ||
ns_capable(sock_net(sock->sk)->user_ns, CAP_NET_ADMIN);
@@ -1402,7 +1469,7 @@ static int netlink_bind(struct socket *sock, struct sockaddr *addr,

/* Only superuser is allowed to listen multicasts */
if (nladdr->nl_groups) {
- if (!netlink_capable(sock, NL_CFG_F_NONROOT_RECV))
+ if (!netlink_allowed(sock, NL_CFG_F_NONROOT_RECV))
return -EPERM;
err = netlink_realloc_groups(sk);
if (err)
@@ -1464,7 +1531,7 @@ static int netlink_connect(struct socket *sock, struct sockaddr *addr,
return -EINVAL;

/* Only superuser is allowed to send multicasts */
- if (nladdr->nl_groups && !netlink_capable(sock, NL_CFG_F_NONROOT_SEND))
+ if (nladdr->nl_groups && !netlink_allowed(sock, NL_CFG_F_NONROOT_SEND))
return -EPERM;

if (!nlk->portid)
@@ -2070,7 +2137,7 @@ static int netlink_setsockopt(struct socket *sock, int level, int optname,
break;
case NETLINK_ADD_MEMBERSHIP:
case NETLINK_DROP_MEMBERSHIP: {
- if (!netlink_capable(sock, NL_CFG_F_NONROOT_RECV))
+ if (!netlink_allowed(sock, NL_CFG_F_NONROOT_RECV))
return -EPERM;
err = netlink_realloc_groups(sk);
if (err)
@@ -2202,6 +2269,7 @@ static int netlink_sendmsg(struct kiocb *kiocb, struct socket *sock,
struct sk_buff *skb;
int err;
struct scm_cookie scm;
+ u32 netlink_skb_flags = 0;

if (msg->msg_flags&MSG_OOB)
return -EOPNOTSUPP;
@@ -2221,8 +2289,9 @@ static int netlink_sendmsg(struct kiocb *kiocb, struct socket *sock,
dst_group = ffs(addr->nl_groups);
err = -EPERM;
if ((dst_group || dst_portid) &&
- !netlink_capable(sock, NL_CFG_F_NONROOT_SEND))
+ !netlink_allowed(sock, NL_CFG_F_NONROOT_SEND))
goto out;
+ netlink_skb_flags |= NETLINK_SKB_DST;
} else {
dst_portid = nlk->dst_portid;
dst_group = nlk->dst_group;
@@ -2252,6 +2321,7 @@ static int netlink_sendmsg(struct kiocb *kiocb, struct socket *sock,
NETLINK_CB(skb).portid = nlk->portid;
NETLINK_CB(skb).dst_group = dst_group;
NETLINK_CB(skb).creds = siocb->scm->creds;
+ NETLINK_CB(skb).flags = netlink_skb_flags;

err = -EFAULT;
if (memcpy_fromiovec(skb_put(skb, len), msg->msg_iov, len)) {
diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c
index 0c741cec4d0d..c7408dd8fd9a 100644
--- a/net/netlink/genetlink.c
+++ b/net/netlink/genetlink.c
@@ -592,7 +592,7 @@ static int genl_family_rcv_msg(struct genl_family *family,
return -EOPNOTSUPP;

if ((ops->flags & GENL_ADMIN_PERM) &&
- !capable(CAP_NET_ADMIN))
+ !netlink_capable(skb, CAP_NET_ADMIN))
return -EPERM;

if ((nlh->nlmsg_flags & NLM_F_DUMP) == NLM_F_DUMP) {
diff --git a/net/packet/diag.c b/net/packet/diag.c
index ec8b6e8a80b1..674b0a65df6c 100644
--- a/net/packet/diag.c
+++ b/net/packet/diag.c
@@ -127,6 +127,7 @@ static int pdiag_put_fanout(struct packet_sock *po, struct sk_buff *nlskb)

static int sk_diag_fill(struct sock *sk, struct sk_buff *skb,
struct packet_diag_req *req,
+ bool may_report_filterinfo,
struct user_namespace *user_ns,
u32 portid, u32 seq, u32 flags, int sk_ino)
{
@@ -171,7 +172,8 @@ static int sk_diag_fill(struct sock *sk, struct sk_buff *skb,
goto out_nlmsg_trim;

if ((req->pdiag_show & PACKET_SHOW_FILTER) &&
- sock_diag_put_filterinfo(sk, skb, PACKET_DIAG_FILTER))
+ sock_diag_put_filterinfo(may_report_filterinfo, sk, skb,
+ PACKET_DIAG_FILTER))
goto out_nlmsg_trim;

return nlmsg_end(skb, nlh);
@@ -187,9 +189,11 @@ static int packet_diag_dump(struct sk_buff *skb, struct netlink_callback *cb)
struct packet_diag_req *req;
struct net *net;
struct sock *sk;
+ bool may_report_filterinfo;

net = sock_net(skb->sk);
req = nlmsg_data(cb->nlh);
+ may_report_filterinfo = netlink_net_capable(cb->skb, CAP_NET_ADMIN);

mutex_lock(&net->packet.sklist_lock);
sk_for_each(sk, &net->packet.sklist) {
@@ -199,6 +203,7 @@ static int packet_diag_dump(struct sk_buff *skb, struct netlink_callback *cb)
goto next;

if (sk_diag_fill(sk, skb, req,
+ may_report_filterinfo,
sk_user_ns(NETLINK_CB(cb->skb).sk),
NETLINK_CB(cb->skb).portid,
cb->nlh->nlmsg_seq, NLM_F_MULTI,
diff --git a/net/phonet/pn_netlink.c b/net/phonet/pn_netlink.c
index dc15f4300808..b64151ade6b3 100644
--- a/net/phonet/pn_netlink.c
+++ b/net/phonet/pn_netlink.c
@@ -70,10 +70,10 @@ static int addr_doit(struct sk_buff *skb, struct nlmsghdr *nlh)
int err;
u8 pnaddr;

- if (!capable(CAP_NET_ADMIN))
+ if (!netlink_capable(skb, CAP_NET_ADMIN))
return -EPERM;

- if (!capable(CAP_SYS_ADMIN))
+ if (!netlink_capable(skb, CAP_SYS_ADMIN))
return -EPERM;

ASSERT_RTNL();
@@ -233,10 +233,10 @@ static int route_doit(struct sk_buff *skb, struct nlmsghdr *nlh)
int err;
u8 dst;

- if (!capable(CAP_NET_ADMIN))
+ if (!netlink_capable(skb, CAP_NET_ADMIN))
return -EPERM;

- if (!capable(CAP_SYS_ADMIN))
+ if (!netlink_capable(skb, CAP_SYS_ADMIN))
return -EPERM;

ASSERT_RTNL();
diff --git a/net/sched/act_api.c b/net/sched/act_api.c
index fd7072827a40..15d46b9166de 100644
--- a/net/sched/act_api.c
+++ b/net/sched/act_api.c
@@ -989,7 +989,7 @@ static int tc_ctl_action(struct sk_buff *skb, struct nlmsghdr *n)
u32 portid = skb ? NETLINK_CB(skb).portid : 0;
int ret = 0, ovr = 0;

- if ((n->nlmsg_type != RTM_GETACTION) && !capable(CAP_NET_ADMIN))
+ if ((n->nlmsg_type != RTM_GETACTION) && !netlink_capable(skb, CAP_NET_ADMIN))
return -EPERM;

ret = nlmsg_parse(n, sizeof(struct tcamsg), tca, TCA_ACT_MAX, NULL);
diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c
index 8e118af90973..2ea40d1877a6 100644
--- a/net/sched/cls_api.c
+++ b/net/sched/cls_api.c
@@ -138,7 +138,7 @@ static int tc_ctl_tfilter(struct sk_buff *skb, struct nlmsghdr *n)
int err;
int tp_created = 0;

- if ((n->nlmsg_type != RTM_GETTFILTER) && !capable(CAP_NET_ADMIN))
+ if ((n->nlmsg_type != RTM_GETTFILTER) && !netlink_capable(skb, CAP_NET_ADMIN))
return -EPERM;

replay:
diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index 51b968d3febb..2d2f07945c85 100644
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -1024,7 +1024,7 @@ static int tc_get_qdisc(struct sk_buff *skb, struct nlmsghdr *n)
struct Qdisc *p = NULL;
int err;

- if ((n->nlmsg_type != RTM_GETQDISC) && !capable(CAP_NET_ADMIN))
+ if ((n->nlmsg_type != RTM_GETQDISC) && !netlink_capable(skb, CAP_NET_ADMIN))
return -EPERM;

err = nlmsg_parse(n, sizeof(*tcm), tca, TCA_MAX, NULL);
@@ -1091,7 +1091,7 @@ static int tc_modify_qdisc(struct sk_buff *skb, struct nlmsghdr *n)
struct Qdisc *q, *p;
int err;

- if (!capable(CAP_NET_ADMIN))
+ if (!netlink_capable(skb, CAP_NET_ADMIN))
return -EPERM;

replay:
@@ -1431,7 +1431,7 @@ static int tc_ctl_tclass(struct sk_buff *skb, struct nlmsghdr *n)
u32 qid;
int err;

- if ((n->nlmsg_type != RTM_GETTCLASS) && !capable(CAP_NET_ADMIN))
+ if ((n->nlmsg_type != RTM_GETTCLASS) && !netlink_capable(skb, CAP_NET_ADMIN))
return -EPERM;

err = nlmsg_parse(n, sizeof(*tcm), tca, TCA_MAX, NULL);
diff --git a/net/sctp/associola.c b/net/sctp/associola.c
index ab67efc64b24..619c781e6691 100644
--- a/net/sctp/associola.c
+++ b/net/sctp/associola.c
@@ -381,7 +381,7 @@ void sctp_association_free(struct sctp_association *asoc)
/* Only real associations count against the endpoint, so
* don't bother for if this is a temporary association.
*/
- if (!asoc->temp) {
+ if (!list_empty(&asoc->asocs)) {
list_del(&asoc->asocs);

/* Decrement the backlog value for a TCP-style listening
diff --git a/net/sunrpc/svc_xprt.c b/net/sunrpc/svc_xprt.c
index 80a6640f329b..b9aad4723a9d 100644
--- a/net/sunrpc/svc_xprt.c
+++ b/net/sunrpc/svc_xprt.c
@@ -730,6 +730,8 @@ static int svc_handle_xprt(struct svc_rqst *rqstp, struct svc_xprt *xprt)
newxpt = xprt->xpt_ops->xpo_accept(xprt);
if (newxpt)
svc_add_new_temp_xprt(serv, newxpt);
+ else
+ module_put(xprt->xpt_class->xcl_owner);
} else if (xprt->xpt_ops->xpo_has_wspace(xprt)) {
/* XPT_DATA|XPT_DEFERRED case: */
dprintk("svc: server %p, pool %u, transport %p, inuse=%d\n",
diff --git a/net/tipc/netlink.c b/net/tipc/netlink.c
index 8bcd4985d0fb..1e6081fb6078 100644
--- a/net/tipc/netlink.c
+++ b/net/tipc/netlink.c
@@ -47,7 +47,7 @@ static int handle_cmd(struct sk_buff *skb, struct genl_info *info)
int hdr_space = nlmsg_total_size(GENL_HDRLEN + TIPC_GENL_HDRLEN);
u16 cmd;

- if ((req_userhdr->cmd & 0xC000) && (!capable(CAP_NET_ADMIN)))
+ if ((req_userhdr->cmd & 0xC000) && (!netlink_capable(skb, CAP_NET_ADMIN)))
cmd = TIPC_CMD_NOT_NET_ADMIN;
else
cmd = req_userhdr->cmd;
diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index 3f565e495ac6..7a70a5a5671a 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -2362,7 +2362,7 @@ static int xfrm_user_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
link = &xfrm_dispatch[type];

/* All operations require privileges, even GET */
- if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
+ if (!netlink_net_capable(skb, CAP_NET_ADMIN))
return -EPERM;

if ((type == (XFRM_MSG_GETSA - XFRM_MSG_BASE) ||
diff --git a/security/integrity/evm/evm_main.c b/security/integrity/evm/evm_main.c
index df0fa451a871..bb0631a8d1c4 100644
--- a/security/integrity/evm/evm_main.c
+++ b/security/integrity/evm/evm_main.c
@@ -285,12 +285,20 @@ out:
* @xattr_value: pointer to the new extended attribute value
* @xattr_value_len: pointer to the new extended attribute value length
*
- * Updating 'security.evm' requires CAP_SYS_ADMIN privileges and that
- * the current value is valid.
+ * Before allowing the 'security.evm' protected xattr to be updated,
+ * verify the existing value is valid. As only the kernel should have
+ * access to the EVM encrypted key needed to calculate the HMAC, prevent
+ * userspace from writing HMAC value. Writing 'security.evm' requires
+ * requires CAP_SYS_ADMIN privileges.
*/
int evm_inode_setxattr(struct dentry *dentry, const char *xattr_name,
const void *xattr_value, size_t xattr_value_len)
{
+ const struct evm_ima_xattr_data *xattr_data = xattr_value;
+
+ if ((strcmp(xattr_name, XATTR_NAME_EVM) == 0)
+ && (xattr_data->type == EVM_XATTR_HMAC))
+ return -EPERM;
return evm_protect_xattr(dentry, xattr_name, xattr_value,
xattr_value_len);
}
diff --git a/security/integrity/ima/ima_api.c b/security/integrity/ima/ima_api.c
index 1c03e8f1e0e1..4e1529e3a53d 100644
--- a/security/integrity/ima/ima_api.c
+++ b/security/integrity/ima/ima_api.c
@@ -140,6 +140,7 @@ int ima_must_measure(struct inode *inode, int mask, int function)
int ima_collect_measurement(struct integrity_iint_cache *iint,
struct file *file)
{
+ const char *audit_cause = "failed";
struct inode *inode = file_inode(file);
const char *filename = file->f_dentry->d_name.name;
int result = 0;
@@ -147,6 +148,11 @@ int ima_collect_measurement(struct integrity_iint_cache *iint,
if (!(iint->flags & IMA_COLLECTED)) {
u64 i_version = file_inode(file)->i_version;

+ if (file->f_flags & O_DIRECT) {
+ audit_cause = "failed(directio)";
+ result = -EACCES;
+ goto out;
+ }
iint->ima_xattr.type = IMA_XATTR_DIGEST;
result = ima_calc_file_hash(file, iint->ima_xattr.digest);
if (!result) {
@@ -154,9 +160,10 @@ int ima_collect_measurement(struct integrity_iint_cache *iint,
iint->flags |= IMA_COLLECTED;
}
}
+out:
if (result)
integrity_audit_msg(AUDIT_INTEGRITY_DATA, inode,
- filename, "collect_data", "failed",
+ filename, "collect_data", audit_cause,
result, 0);
return result;
}
diff --git a/security/integrity/ima/ima_crypto.c b/security/integrity/ima/ima_crypto.c
index a02e0791cf15..9da974c0f958 100644
--- a/security/integrity/ima/ima_crypto.c
+++ b/security/integrity/ima/ima_crypto.c
@@ -24,6 +24,36 @@

static struct crypto_shash *ima_shash_tfm;

+/**
+ * ima_kernel_read - read file content
+ *
+ * This is a function for reading file content instead of kernel_read().
+ * It does not perform locking checks to ensure it cannot be blocked.
+ * It does not perform security checks because it is irrelevant for IMA.
+ *
+ */
+static int ima_kernel_read(struct file *file, loff_t offset,
+ char *addr, unsigned long count)
+{
+ mm_segment_t old_fs;
+ char __user *buf = addr;
+ ssize_t ret;
+
+ if (!(file->f_mode & FMODE_READ))
+ return -EBADF;
+ if (!file->f_op->read && !file->f_op->aio_read)
+ return -EINVAL;
+
+ old_fs = get_fs();
+ set_fs(get_ds());
+ if (file->f_op->read)
+ ret = file->f_op->read(file, buf, count, &offset);
+ else
+ ret = do_sync_read(file, buf, count, &offset);
+ set_fs(old_fs);
+ return ret;
+}
+
int ima_init_crypto(void)
{
long rc;
@@ -70,7 +100,7 @@ int ima_calc_file_hash(struct file *file, char *digest)
while (offset < i_size) {
int rbuf_len;

- rbuf_len = kernel_read(file, offset, rbuf, PAGE_SIZE);
+ rbuf_len = ima_kernel_read(file, offset, rbuf, PAGE_SIZE);
if (rbuf_len < 0) {
rc = rbuf_len;
break;
diff --git a/security/integrity/ima/ima_main.c b/security/integrity/ima/ima_main.c
index e9508d5bbfcf..03fb126d215a 100644
--- a/security/integrity/ima/ima_main.c
+++ b/security/integrity/ima/ima_main.c
@@ -186,8 +186,11 @@ static int process_measurement(struct file *file, const char *filename,
}

rc = ima_collect_measurement(iint, file);
- if (rc != 0)
+ if (rc != 0) {
+ if (file->f_flags & O_DIRECT)
+ rc = (iint->flags & IMA_PERMIT_DIRECTIO) ? 0 : -EACCES;
goto out_digsig;
+ }

pathname = !filename ? ima_d_path(&file->f_path, &pathbuf) : filename;
if (!pathname)
diff --git a/security/integrity/ima/ima_policy.c b/security/integrity/ima/ima_policy.c
index a9c3d3cd1990..085c4964be99 100644
--- a/security/integrity/ima/ima_policy.c
+++ b/security/integrity/ima/ima_policy.c
@@ -351,7 +351,7 @@ enum {
Opt_obj_user, Opt_obj_role, Opt_obj_type,
Opt_subj_user, Opt_subj_role, Opt_subj_type,
Opt_func, Opt_mask, Opt_fsmagic, Opt_uid, Opt_fowner,
- Opt_appraise_type, Opt_fsuuid
+ Opt_appraise_type, Opt_fsuuid, Opt_permit_directio
};

static match_table_t policy_tokens = {
@@ -373,6 +373,7 @@ static match_table_t policy_tokens = {
{Opt_uid, "uid=%s"},
{Opt_fowner, "fowner=%s"},
{Opt_appraise_type, "appraise_type=%s"},
+ {Opt_permit_directio, "permit_directio"},
{Opt_err, NULL}
};

@@ -621,6 +622,9 @@ static int ima_parse_rule(char *rule, struct ima_rule_entry *entry)
else
result = -EINVAL;
break;
+ case Opt_permit_directio:
+ entry->flags |= IMA_PERMIT_DIRECTIO;
+ break;
case Opt_err:
ima_log_string(ab, "UNKNOWN", p);
result = -EINVAL;
diff --git a/security/integrity/integrity.h b/security/integrity/integrity.h
index c42fb7a70dee..ecbb6f20f46a 100644
--- a/security/integrity/integrity.h
+++ b/security/integrity/integrity.h
@@ -30,6 +30,7 @@
#define IMA_ACTION_FLAGS 0xff000000
#define IMA_DIGSIG 0x01000000
#define IMA_DIGSIG_REQUIRED 0x02000000
+#define IMA_PERMIT_DIRECTIO 0x04000000

#define IMA_DO_MASK (IMA_MEASURE | IMA_APPRAISE | IMA_AUDIT | \
IMA_APPRAISE_SUBMASK)
diff --git a/sound/core/control.c b/sound/core/control.c
index d8aa206e8bde..98a29b26c5f4 100644
--- a/sound/core/control.c
+++ b/sound/core/control.c
@@ -289,6 +289,10 @@ static bool snd_ctl_remove_numid_conflict(struct snd_card *card,
{
struct snd_kcontrol *kctl;

+ /* Make sure that the ids assigned to the control do not wrap around */
+ if (card->last_numid >= UINT_MAX - count)
+ card->last_numid = 0;
+
list_for_each_entry(kctl, &card->controls, list) {
if (kctl->id.numid < card->last_numid + 1 + count &&
kctl->id.numid + kctl->count > card->last_numid + 1) {
@@ -331,6 +335,7 @@ int snd_ctl_add(struct snd_card *card, struct snd_kcontrol *kcontrol)
{
struct snd_ctl_elem_id id;
unsigned int idx;
+ unsigned int count;
int err = -EINVAL;

if (! kcontrol)
@@ -338,6 +343,9 @@ int snd_ctl_add(struct snd_card *card, struct snd_kcontrol *kcontrol)
if (snd_BUG_ON(!card || !kcontrol->info))
goto error;
id = kcontrol->id;
+ if (id.index > UINT_MAX - kcontrol->count)
+ goto error;
+
down_write(&card->controls_rwsem);
if (snd_ctl_find_id(card, &id)) {
up_write(&card->controls_rwsem);
@@ -359,8 +367,9 @@ int snd_ctl_add(struct snd_card *card, struct snd_kcontrol *kcontrol)
card->controls_count += kcontrol->count;
kcontrol->id.numid = card->last_numid + 1;
card->last_numid += kcontrol->count;
+ count = kcontrol->count;
up_write(&card->controls_rwsem);
- for (idx = 0; idx < kcontrol->count; idx++, id.index++, id.numid++)
+ for (idx = 0; idx < count; idx++, id.index++, id.numid++)
snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_ADD, &id);
return 0;

@@ -389,6 +398,7 @@ int snd_ctl_replace(struct snd_card *card, struct snd_kcontrol *kcontrol,
bool add_on_replace)
{
struct snd_ctl_elem_id id;
+ unsigned int count;
unsigned int idx;
struct snd_kcontrol *old;
int ret;
@@ -424,8 +434,9 @@ add:
card->controls_count += kcontrol->count;
kcontrol->id.numid = card->last_numid + 1;
card->last_numid += kcontrol->count;
+ count = kcontrol->count;
up_write(&card->controls_rwsem);
- for (idx = 0; idx < kcontrol->count; idx++, id.index++, id.numid++)
+ for (idx = 0; idx < count; idx++, id.index++, id.numid++)
snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_ADD, &id);
return 0;

@@ -898,9 +909,9 @@ static int snd_ctl_elem_write(struct snd_card *card, struct snd_ctl_file *file,
result = kctl->put(kctl, control);
}
if (result > 0) {
+ struct snd_ctl_elem_id id = control->id;
up_read(&card->controls_rwsem);
- snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
- &control->id);
+ snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &id);
return 0;
}
}
@@ -992,6 +1003,7 @@ static int snd_ctl_elem_unlock(struct snd_ctl_file *file,

struct user_element {
struct snd_ctl_elem_info info;
+ struct snd_card *card;
void *elem_data; /* element data */
unsigned long elem_data_size; /* size of element data in bytes */
void *tlv_data; /* TLV data */
@@ -1035,7 +1047,9 @@ static int snd_ctl_elem_user_get(struct snd_kcontrol *kcontrol,
{
struct user_element *ue = kcontrol->private_data;

+ mutex_lock(&ue->card->user_ctl_lock);
memcpy(&ucontrol->value, ue->elem_data, ue->elem_data_size);
+ mutex_unlock(&ue->card->user_ctl_lock);
return 0;
}

@@ -1044,10 +1058,12 @@ static int snd_ctl_elem_user_put(struct snd_kcontrol *kcontrol,
{
int change;
struct user_element *ue = kcontrol->private_data;
-
+
+ mutex_lock(&ue->card->user_ctl_lock);
change = memcmp(&ucontrol->value, ue->elem_data, ue->elem_data_size) != 0;
if (change)
memcpy(ue->elem_data, &ucontrol->value, ue->elem_data_size);
+ mutex_unlock(&ue->card->user_ctl_lock);
return change;
}

@@ -1067,19 +1083,32 @@ static int snd_ctl_elem_user_tlv(struct snd_kcontrol *kcontrol,
new_data = memdup_user(tlv, size);
if (IS_ERR(new_data))
return PTR_ERR(new_data);
+ mutex_lock(&ue->card->user_ctl_lock);
change = ue->tlv_data_size != size;
if (!change)
change = memcmp(ue->tlv_data, new_data, size);
kfree(ue->tlv_data);
ue->tlv_data = new_data;
ue->tlv_data_size = size;
+ mutex_unlock(&ue->card->user_ctl_lock);
} else {
- if (! ue->tlv_data_size || ! ue->tlv_data)
- return -ENXIO;
- if (size < ue->tlv_data_size)
- return -ENOSPC;
+ int ret = 0;
+
+ mutex_lock(&ue->card->user_ctl_lock);
+ if (!ue->tlv_data_size || !ue->tlv_data) {
+ ret = -ENXIO;
+ goto err_unlock;
+ }
+ if (size < ue->tlv_data_size) {
+ ret = -ENOSPC;
+ goto err_unlock;
+ }
if (copy_to_user(tlv, ue->tlv_data, ue->tlv_data_size))
- return -EFAULT;
+ ret = -EFAULT;
+err_unlock:
+ mutex_unlock(&ue->card->user_ctl_lock);
+ if (ret)
+ return ret;
}
return change;
}
@@ -1137,8 +1166,6 @@ static int snd_ctl_elem_add(struct snd_ctl_file *file,
struct user_element *ue;
int idx, err;

- if (!replace && card->user_ctl_count >= MAX_USER_CONTROLS)
- return -ENOMEM;
if (info->count < 1)
return -EINVAL;
access = info->access == 0 ? SNDRV_CTL_ELEM_ACCESS_READWRITE :
@@ -1147,21 +1174,16 @@ static int snd_ctl_elem_add(struct snd_ctl_file *file,
SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE));
info->id.numid = 0;
memset(&kctl, 0, sizeof(kctl));
- down_write(&card->controls_rwsem);
- _kctl = snd_ctl_find_id(card, &info->id);
- err = 0;
- if (_kctl) {
- if (replace)
- err = snd_ctl_remove(card, _kctl);
- else
- err = -EBUSY;
- } else {
- if (replace)
- err = -ENOENT;
+
+ if (replace) {
+ err = snd_ctl_remove_user_ctl(file, &info->id);
+ if (err)
+ return err;
}
- up_write(&card->controls_rwsem);
- if (err < 0)
- return err;
+
+ if (card->user_ctl_count >= MAX_USER_CONTROLS)
+ return -ENOMEM;
+
memcpy(&kctl.id, &info->id, sizeof(info->id));
kctl.count = info->owner ? info->owner : 1;
access |= SNDRV_CTL_ELEM_ACCESS_USER;
@@ -1211,6 +1233,7 @@ static int snd_ctl_elem_add(struct snd_ctl_file *file,
ue = kzalloc(sizeof(struct user_element) + private_size, GFP_KERNEL);
if (ue == NULL)
return -ENOMEM;
+ ue->card = card;
ue->info = *info;
ue->info.access = 0;
ue->elem_data = (char *)ue + sizeof(*ue);
@@ -1322,8 +1345,9 @@ static int snd_ctl_tlv_ioctl(struct snd_ctl_file *file,
}
err = kctl->tlv.c(kctl, op_flag, tlv.length, _tlv->tlv);
if (err > 0) {
+ struct snd_ctl_elem_id id = kctl->id;
up_read(&card->controls_rwsem);
- snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_TLV, &kctl->id);
+ snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_TLV, &id);
return 0;
}
} else {
diff --git a/sound/core/init.c b/sound/core/init.c
index d04785144601..b9268a55126b 100644
--- a/sound/core/init.c
+++ b/sound/core/init.c
@@ -215,6 +215,7 @@ int snd_card_create(int idx, const char *xid,
INIT_LIST_HEAD(&card->devices);
init_rwsem(&card->controls_rwsem);
rwlock_init(&card->ctl_files_rwlock);
+ mutex_init(&card->user_ctl_lock);
INIT_LIST_HEAD(&card->controls);
INIT_LIST_HEAD(&card->ctl_files);
spin_lock_init(&card->files_lock);
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index cdb307f2e028..1c527501d5ce 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -3464,6 +3464,7 @@ enum {
ALC269_FIXUP_STEREO_DMIC,
ALC269_FIXUP_QUANTA_MUTE,
ALC269_FIXUP_LIFEBOOK,
+ ALC269_FIXUP_LIFEBOOK_EXTMIC,
ALC269_FIXUP_AMIC,
ALC269_FIXUP_DMIC,
ALC269VB_FIXUP_AMIC,
@@ -3572,6 +3573,13 @@ static const struct hda_fixup alc269_fixups[] = {
.chained = true,
.chain_id = ALC269_FIXUP_QUANTA_MUTE
},
+ [ALC269_FIXUP_LIFEBOOK_EXTMIC] = {
+ .type = HDA_FIXUP_PINS,
+ .v.pins = (const struct hda_pintbl[]) {
+ { 0x19, 0x01a1903c }, /* headset mic, with jack detect */
+ { }
+ },
+ },
[ALC269_FIXUP_AMIC] = {
.type = HDA_FIXUP_PINS,
.v.pins = (const struct hda_pintbl[]) {
@@ -3814,14 +3822,24 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
SND_PCI_QUIRK(0x103c, 0x1973, "HP Pavilion", ALC269_FIXUP_HP_MUTE_LED_MIC1),
SND_PCI_QUIRK(0x103c, 0x1983, "HP Pavilion", ALC269_FIXUP_HP_MUTE_LED_MIC1),
/* ALC282 */
+ SND_PCI_QUIRK(0x103c, 0x220d, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC1),
+ SND_PCI_QUIRK(0x103c, 0x220e, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC1),
SND_PCI_QUIRK(0x103c, 0x220f, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC1),
+ SND_PCI_QUIRK(0x103c, 0x2210, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC1),
+ SND_PCI_QUIRK(0x103c, 0x2211, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC1),
+ SND_PCI_QUIRK(0x103c, 0x2212, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC1),
SND_PCI_QUIRK(0x103c, 0x2213, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC1),
+ SND_PCI_QUIRK(0x103c, 0x2214, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC1),
SND_PCI_QUIRK(0x103c, 0x2266, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC1),
SND_PCI_QUIRK(0x103c, 0x2267, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC1),
SND_PCI_QUIRK(0x103c, 0x2268, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC1),
SND_PCI_QUIRK(0x103c, 0x2269, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC1),
SND_PCI_QUIRK(0x103c, 0x226a, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC1),
SND_PCI_QUIRK(0x103c, 0x226b, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC1),
+ SND_PCI_QUIRK(0x103c, 0x226c, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC1),
+ SND_PCI_QUIRK(0x103c, 0x226d, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC1),
+ SND_PCI_QUIRK(0x103c, 0x226e, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC1),
+ SND_PCI_QUIRK(0x103c, 0x226f, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC1),
SND_PCI_QUIRK(0x103c, 0x227a, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC1),
SND_PCI_QUIRK(0x103c, 0x227b, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC1),
SND_PCI_QUIRK(0x103c, 0x229e, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC1),
@@ -3861,6 +3879,10 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
SND_PCI_QUIRK(0x103c, 0x22c8, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC1),
SND_PCI_QUIRK(0x103c, 0x22c3, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC1),
SND_PCI_QUIRK(0x103c, 0x22c4, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC1),
+ SND_PCI_QUIRK(0x103c, 0x2334, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC1),
+ SND_PCI_QUIRK(0x103c, 0x2335, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC1),
+ SND_PCI_QUIRK(0x103c, 0x2336, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC1),
+ SND_PCI_QUIRK(0x103c, 0x2337, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC1),
SND_PCI_QUIRK_VENDOR(0x103c, "HP", ALC269_FIXUP_HP_MUTE_LED),
SND_PCI_QUIRK(0x1043, 0x106d, "Asus K53BE", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
SND_PCI_QUIRK(0x1043, 0x115d, "Asus 1015E", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
@@ -3887,6 +3909,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
SND_PCI_QUIRK(0x1025, 0x0742, "Acer AO756", ALC271_FIXUP_HP_GATE_MIC_JACK),
SND_PCI_QUIRK_VENDOR(0x1025, "Acer Aspire", ALC271_FIXUP_DMIC),
SND_PCI_QUIRK(0x10cf, 0x1475, "Lifebook", ALC269_FIXUP_LIFEBOOK),
+ SND_PCI_QUIRK(0x10cf, 0x1845, "Lifebook U904", ALC269_FIXUP_LIFEBOOK_EXTMIC),
SND_PCI_QUIRK(0x17aa, 0x20f2, "Thinkpad SL410/510", ALC269_FIXUP_SKU_IGNORE),
SND_PCI_QUIRK(0x17aa, 0x215e, "Thinkpad L512", ALC269_FIXUP_SKU_IGNORE),
SND_PCI_QUIRK(0x17aa, 0x21b8, "Thinkpad Edge 14", ALC269_FIXUP_SKU_IGNORE),
@@ -4851,6 +4874,7 @@ static const struct hda_codec_preset snd_hda_preset_realtek[] = {
{ .id = 0x10ec0670, .name = "ALC670", .patch = patch_alc662 },
{ .id = 0x10ec0671, .name = "ALC671", .patch = patch_alc662 },
{ .id = 0x10ec0680, .name = "ALC680", .patch = patch_alc680 },
+ { .id = 0x10ec0867, .name = "ALC891", .patch = patch_alc882 },
{ .id = 0x10ec0880, .name = "ALC880", .patch = patch_alc880 },
{ .id = 0x10ec0882, .name = "ALC882", .patch = patch_alc882 },
{ .id = 0x10ec0883, .name = "ALC883", .patch = patch_alc882 },
diff --git a/sound/soc/codecs/max98090.c b/sound/soc/codecs/max98090.c
index 29c368925d59..4df62ce4f96c 100644
--- a/sound/soc/codecs/max98090.c
+++ b/sound/soc/codecs/max98090.c
@@ -255,6 +255,7 @@ static struct reg_default max98090_reg[] = {
static bool max98090_volatile_register(struct device *dev, unsigned int reg)
{
switch (reg) {
+ case M98090_REG_SOFTWARE_RESET:
case M98090_REG_DEVICE_STATUS:
case M98090_REG_JACK_STATUS:
case M98090_REG_REVISION_ID:
@@ -2358,6 +2359,8 @@ static int max98090_runtime_resume(struct device *dev)

regcache_cache_only(max98090->regmap, false);

+ max98090_reset(max98090);
+
regcache_sync(max98090->regmap);

return 0;
diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile
index 4cb14cae3791..9f3eae290900 100644
--- a/tools/testing/selftests/Makefile
+++ b/tools/testing/selftests/Makefile
@@ -8,6 +8,7 @@ TARGETS += net
TARGETS += ptrace
TARGETS += timers
TARGETS += vm
+TARGETS += powerpc

all:
for TARGET in $(TARGETS); do \
diff --git a/tools/testing/selftests/powerpc/Makefile b/tools/testing/selftests/powerpc/Makefile
new file mode 100644
index 000000000000..436953b1719c
--- /dev/null
+++ b/tools/testing/selftests/powerpc/Makefile
@@ -0,0 +1,39 @@
+# Makefile for powerpc selftests
+
+# ARCH can be overridden by the user for cross compiling
+ARCH ?= $(shell uname -m)
+ARCH := $(shell echo $(ARCH) | sed -e s/ppc.*/powerpc/)
+
+ifeq ($(ARCH),powerpc)
+
+GIT_VERSION = $(shell git describe --always --long --dirty || echo "unknown")
+
+CC := $(CROSS_COMPILE)$(CC)
+CFLAGS := -Wall -O2 -flto -Wall -Werror -DGIT_VERSION='"$(GIT_VERSION)"' -I$(CURDIR) $(CFLAGS)
+
+export CC CFLAGS
+
+TARGETS = tm
+
+endif
+
+all:
+ @for TARGET in $(TARGETS); do \
+ $(MAKE) -C $$TARGET all; \
+ done;
+
+run_tests: all
+ @for TARGET in $(TARGETS); do \
+ $(MAKE) -C $$TARGET run_tests; \
+ done;
+
+clean:
+ @for TARGET in $(TARGETS); do \
+ $(MAKE) -C $$TARGET clean; \
+ done;
+ rm -f tags
+
+tags:
+ find . -name '*.c' -o -name '*.h' | xargs ctags
+
+.PHONY: all run_tests clean tags
diff --git a/tools/testing/selftests/powerpc/tm/Makefile b/tools/testing/selftests/powerpc/tm/Makefile
new file mode 100644
index 000000000000..51267f4184a6
--- /dev/null
+++ b/tools/testing/selftests/powerpc/tm/Makefile
@@ -0,0 +1,15 @@
+PROGS := tm-resched-dscr
+
+all: $(PROGS)
+
+$(PROGS):
+
+run_tests: all
+ @-for PROG in $(PROGS); do \
+ ./$$PROG; \
+ done;
+
+clean:
+ rm -f $(PROGS) *.o
+
+.PHONY: all run_tests clean
diff --git a/tools/testing/selftests/powerpc/tm/tm-resched-dscr.c b/tools/testing/selftests/powerpc/tm/tm-resched-dscr.c
new file mode 100644
index 000000000000..ee98e3886af2
--- /dev/null
+++ b/tools/testing/selftests/powerpc/tm/tm-resched-dscr.c
@@ -0,0 +1,90 @@
+/* Test context switching to see if the DSCR SPR is correctly preserved
+ * when within a transaction.
+ *
+ * Note: We assume that the DSCR has been left at the default value (0)
+ * for all CPUs.
+ *
+ * Method:
+ *
+ * Set a value into the DSCR.
+ *
+ * Start a transaction, and suspend it (*).
+ *
+ * Hard loop checking to see if the transaction has become doomed.
+ *
+ * Now that we *may* have been preempted, record the DSCR and TEXASR SPRS.
+ *
+ * If the abort was because of a context switch, check the DSCR value.
+ * Otherwise, try again.
+ *
+ * (*) If the transaction is not suspended we can't see the problem because
+ * the transaction abort handler will restore the DSCR to it's checkpointed
+ * value before we regain control.
+ */
+
+#include <inttypes.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <assert.h>
+#include <asm/tm.h>
+
+#define TBEGIN ".long 0x7C00051D ;"
+#define TEND ".long 0x7C00055D ;"
+#define TCHECK ".long 0x7C00059C ;"
+#define TSUSPEND ".long 0x7C0005DD ;"
+#define TRESUME ".long 0x7C2005DD ;"
+#define SPRN_TEXASR 0x82
+#define SPRN_DSCR 0x03
+
+int main(void) {
+ uint64_t rv, dscr1 = 1, dscr2, texasr;
+
+ printf("Check DSCR TM context switch: ");
+ fflush(stdout);
+ for (;;) {
+ rv = 1;
+ asm __volatile__ (
+ /* set a known value into the DSCR */
+ "ld 3, %[dscr1];"
+ "mtspr %[sprn_dscr], 3;"
+
+ /* start and suspend a transaction */
+ TBEGIN
+ "beq 1f;"
+ TSUSPEND
+
+ /* hard loop until the transaction becomes doomed */
+ "2: ;"
+ TCHECK
+ "bc 4, 0, 2b;"
+
+ /* record DSCR and TEXASR */
+ "mfspr 3, %[sprn_dscr];"
+ "std 3, %[dscr2];"
+ "mfspr 3, %[sprn_texasr];"
+ "std 3, %[texasr];"
+
+ TRESUME
+ TEND
+ "li %[rv], 0;"
+ "1: ;"
+ : [rv]"=r"(rv), [dscr2]"=m"(dscr2), [texasr]"=m"(texasr)
+ : [dscr1]"m"(dscr1)
+ , [sprn_dscr]"i"(SPRN_DSCR), [sprn_texasr]"i"(SPRN_TEXASR)
+ : "memory", "r3"
+ );
+ assert(rv); /* make sure the transaction aborted */
+ if ((texasr >> 56) != TM_CAUSE_RESCHED) {
+ putchar('.');
+ fflush(stdout);
+ continue;
+ }
+ if (dscr2 != dscr1) {
+ printf(" FAIL\n");
+ exit(EXIT_FAILURE);
+ } else {
+ printf(" OK\n");
+ exit(EXIT_SUCCESS);
+ }
+ }
+}
--
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