Re: [PATCH 3.2 00/70] 3.2.76-rc1 review

From: Ben Hutchings
Date: Sun Jan 17 2016 - 22:46:24 EST

This is the combined diff for 3.2.76-rc1 relative to 3.2.75.

Ben.

--
Ben Hutchings
A free society is one where it is safe to be unpopular. - Adlai Stevenson
diff --git a/Documentation/i2c/busses/i2c-i801 b/Documentation/i2c/busses/i2c-i801
index 99d4e44..4341d87 100644
--- a/Documentation/i2c/busses/i2c-i801
+++ b/Documentation/i2c/busses/i2c-i801
@@ -22,6 +22,17 @@ Supported adapters:
* Intel Panther Point (PCH)
* Intel Lynx Point (PCH)
* Intel Lynx Point-LP (PCH)
+ * Intel Avoton (SOC)
+ * Intel Wellsburg (PCH)
+ * Intel Coleto Creek (PCH)
+ * Intel Wildcat Point (PCH)
+ * Intel Wildcat Point-LP (PCH)
+ * Intel BayTrail (SOC)
+ * Intel Sunrise Point-H (PCH)
+ * Intel Sunrise Point-LP (PCH)
+ * Intel DNV (SOC)
+ * Intel Broxton (SOC)
+ * Intel Lewisburg (PCH)
Datasheets: Publicly available at the Intel website

On Intel Patsburg and later chipsets, both the normal host SMBus controller
diff --git a/Makefile b/Makefile
index 1fbb6f4..f032854 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
VERSION = 3
PATCHLEVEL = 2
-SUBLEVEL = 75
-EXTRAVERSION =
+SUBLEVEL = 76
+EXTRAVERSION = -rc1
NAME = Saber-toothed Squirrel

# *DOCUMENTATION*
diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S
index 1d39bea..532a330 100644
--- a/arch/mips/kernel/scall32-o32.S
+++ b/arch/mips/kernel/scall32-o32.S
@@ -192,6 +192,7 @@ illegal_syscall:
sll t1, t0, 3
beqz v0, einval
lw t2, sys_call_table(t1) # syscall routine
+ sw a0, PT_R2(sp) # call routine directly on restart

/* Some syscalls like execve get their arguments from struct pt_regs
and claim zero arguments in the syscall table. Thus we have to
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
index a56175b..6651759 100644
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -180,6 +180,7 @@ LEAF(sys32_syscall)
dsll t1, t0, 3
beqz v0, einval
ld t2, sys_call_table(t1) # syscall routine
+ sd a0, PT_R2(sp) # call routine directly on restart

move a0, a1 # shift argument registers
move a1, a2
diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index 12c1ed3..f7c8352 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -468,6 +468,55 @@ handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
return 1;
}

+/*
+ * Check how the syscall number gets loaded into %r20 within
+ * the delay branch in userspace and adjust as needed.
+ */
+
+static void check_syscallno_in_delay_branch(struct pt_regs *regs)
+{
+ u32 opcode, source_reg;
+ u32 __user *uaddr;
+ int err;
+
+ /* Usually we don't have to restore %r20 (the system call number)
+ * because it gets loaded in the delay slot of the branch external
+ * instruction via the ldi instruction.
+ * In some cases a register-to-register copy instruction might have
+ * been used instead, in which case we need to copy the syscall
+ * number into the source register before returning to userspace.
+ */
+
+ /* A syscall is just a branch, so all we have to do is fiddle the
+ * return pointer so that the ble instruction gets executed again.
+ */
+ regs->gr[31] -= 8; /* delayed branching */
+
+ /* Get assembler opcode of code in delay branch */
+ uaddr = (unsigned int *) ((regs->gr[31] & ~3) + 4);
+ err = get_user(opcode, uaddr);
+ if (err)
+ return;
+
+ /* Check if delay branch uses "ldi int,%r20" */
+ if ((opcode & 0xffff0000) == 0x34140000)
+ return; /* everything ok, just return */
+
+ /* Check if delay branch uses "nop" */
+ if (opcode == INSN_NOP)
+ return;
+
+ /* Check if delay branch uses "copy %rX,%r20" */
+ if ((opcode & 0xffe0ffff) == 0x08000254) {
+ source_reg = (opcode >> 16) & 31;
+ regs->gr[source_reg] = regs->gr[20];
+ return;
+ }
+
+ pr_warn("syscall restart: %s (pid %d): unexpected opcode 0x%08x\n",
+ current->comm, task_pid_nr(current), opcode);
+}
+
static inline void
syscall_restart(struct pt_regs *regs, struct k_sigaction *ka)
{
@@ -489,10 +538,7 @@ syscall_restart(struct pt_regs *regs, struct k_sigaction *ka)
}
/* fallthrough */
case -ERESTARTNOINTR:
- /* A syscall is just a branch, so all
- * we have to do is fiddle the return pointer.
- */
- regs->gr[31] -= 8; /* delayed branching */
+ check_syscallno_in_delay_branch(regs);
/* Preserve original r28. */
regs->gr[28] = regs->orig_r28;
break;
@@ -543,18 +589,12 @@ insert_restart_trampoline(struct pt_regs *regs)
}
case -ERESTARTNOHAND:
case -ERESTARTSYS:
- case -ERESTARTNOINTR: {
- /* Hooray for delayed branching. We don't
- * have to restore %r20 (the system call
- * number) because it gets loaded in the delay
- * slot of the branch external instruction.
- */
- regs->gr[31] -= 8;
+ case -ERESTARTNOINTR:
+ check_syscallno_in_delay_branch(regs);
/* Preserve original r28. */
regs->gr[28] = regs->orig_r28;

return;
- }
default:
break;
}
diff --git a/arch/s390/kernel/dis.c b/arch/s390/kernel/dis.c
index 45df6d4..847ea15 100644
--- a/arch/s390/kernel/dis.c
+++ b/arch/s390/kernel/dis.c
@@ -1503,14 +1503,21 @@ static int print_insn(char *buffer, unsigned char *code, unsigned long addr)
}
if (separator)
ptr += sprintf(ptr, "%c", separator);
+ /*
+ * Use four '%' characters below because of the
+ * following two conversions:
+ *
+ * 1) sprintf: %%%%r -> %%r
+ * 2) printk : %%r -> %r
+ */
if (operand->flags & OPERAND_GPR)
- ptr += sprintf(ptr, "%%r%i", value);
+ ptr += sprintf(ptr, "%%%%r%i", value);
else if (operand->flags & OPERAND_FPR)
- ptr += sprintf(ptr, "%%f%i", value);
+ ptr += sprintf(ptr, "%%%%f%i", value);
else if (operand->flags & OPERAND_AR)
- ptr += sprintf(ptr, "%%a%i", value);
+ ptr += sprintf(ptr, "%%%%a%i", value);
else if (operand->flags & OPERAND_CR)
- ptr += sprintf(ptr, "%%c%i", value);
+ ptr += sprintf(ptr, "%%%%c%i", value);
else if (operand->flags & OPERAND_PCREL)
ptr += sprintf(ptr, "%lx", (signed int) value
+ addr);
diff --git a/arch/x86/kvm/i8254.c b/arch/x86/kvm/i8254.c
index ab98fe5..aa21aa1 100644
--- a/arch/x86/kvm/i8254.c
+++ b/arch/x86/kvm/i8254.c
@@ -437,6 +437,7 @@ void kvm_pit_load_count(struct kvm *kvm, int channel, u32 val, int hpet_legacy_s
u8 saved_mode;
if (hpet_legacy_start) {
/* save existing mode for later reenablement */
+ WARN_ON(channel != 0);
saved_mode = kvm->arch.vpit->pit_state.channels[0].mode;
kvm->arch.vpit->pit_state.channels[0].mode = 0xff; /* disable timer */
pit_load_count(kvm, channel, val);
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 0e3289b..80c6d68 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -3434,10 +3434,11 @@ static int kvm_vm_ioctl_get_pit(struct kvm *kvm, struct kvm_pit_state *ps)
static int kvm_vm_ioctl_set_pit(struct kvm *kvm, struct kvm_pit_state *ps)
{
int r = 0;
-
+ int i;
mutex_lock(&kvm->arch.vpit->pit_state.lock);
memcpy(&kvm->arch.vpit->pit_state, ps, sizeof(struct kvm_pit_state));
- kvm_pit_load_count(kvm, 0, ps->channels[0].count, 0);
+ for (i = 0; i < 3; i++)
+ kvm_pit_load_count(kvm, i, ps->channels[i].count, 0);
mutex_unlock(&kvm->arch.vpit->pit_state.lock);
return r;
}
@@ -3458,6 +3459,7 @@ static int kvm_vm_ioctl_get_pit2(struct kvm *kvm, struct kvm_pit_state2 *ps)
static int kvm_vm_ioctl_set_pit2(struct kvm *kvm, struct kvm_pit_state2 *ps)
{
int r = 0, start = 0;
+ int i;
u32 prev_legacy, cur_legacy;
mutex_lock(&kvm->arch.vpit->pit_state.lock);
prev_legacy = kvm->arch.vpit->pit_state.flags & KVM_PIT_FLAGS_HPET_LEGACY;
@@ -3467,7 +3469,9 @@ static int kvm_vm_ioctl_set_pit2(struct kvm *kvm, struct kvm_pit_state2 *ps)
memcpy(&kvm->arch.vpit->pit_state.channels, &ps->channels,
sizeof(kvm->arch.vpit->pit_state.channels));
kvm->arch.vpit->pit_state.flags = ps->flags;
- kvm_pit_load_count(kvm, 0, kvm->arch.vpit->pit_state.channels[0].count, start);
+ for (i = 0; i < 3; i++)
+ kvm_pit_load_count(kvm, i, kvm->arch.vpit->pit_state.channels[i].count,
+ start && i == 0);
mutex_unlock(&kvm->arch.vpit->pit_state.lock);
return r;
}
diff --git a/crypto/ablkcipher.c b/crypto/ablkcipher.c
index d53a30b..6eb6eb1 100644
--- a/crypto/ablkcipher.c
+++ b/crypto/ablkcipher.c
@@ -280,12 +280,12 @@ static int ablkcipher_walk_first(struct ablkcipher_request *req,
if (WARN_ON_ONCE(in_irq()))
return -EDEADLK;

+ walk->iv = req->info;
walk->nbytes = walk->total;
if (unlikely(!walk->total))
return 0;

walk->iv_buffer = NULL;
- walk->iv = req->info;
if (unlikely(((unsigned long)walk->iv & alignmask))) {
int err = ablkcipher_copy_iv(walk, tfm, alignmask);
if (err)
diff --git a/crypto/blkcipher.c b/crypto/blkcipher.c
index 04f0f38..3041504 100644
--- a/crypto/blkcipher.c
+++ b/crypto/blkcipher.c
@@ -329,12 +329,12 @@ static int blkcipher_walk_first(struct blkcipher_desc *desc,
if (WARN_ON_ONCE(in_irq()))
return -EDEADLK;

+ walk->iv = desc->info;
walk->nbytes = walk->total;
if (unlikely(!walk->total))
return 0;

walk->buffer = NULL;
- walk->iv = desc->info;
if (unlikely(((unsigned long)walk->iv & alignmask))) {
int err = blkcipher_copy_iv(walk, tfm, alignmask);
if (err)
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index e2958aa..7117457 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -324,6 +324,8 @@ static const struct pci_device_id ahci_pci_tbl[] = {
{ PCI_VDEVICE(INTEL, 0x1f37), board_ahci_avn }, /* Avoton RAID */
{ PCI_VDEVICE(INTEL, 0x1f3e), board_ahci_avn }, /* Avoton RAID */
{ PCI_VDEVICE(INTEL, 0x1f3f), board_ahci_avn }, /* Avoton RAID */
+ { PCI_VDEVICE(INTEL, 0x2823), board_ahci }, /* Wellsburg RAID */
+ { PCI_VDEVICE(INTEL, 0x2827), board_ahci }, /* Wellsburg RAID */
{ PCI_VDEVICE(INTEL, 0x8d02), board_ahci }, /* Wellsburg AHCI */
{ PCI_VDEVICE(INTEL, 0x8d04), board_ahci }, /* Wellsburg RAID */
{ PCI_VDEVICE(INTEL, 0x8d06), board_ahci }, /* Wellsburg RAID */
@@ -348,15 +350,29 @@ static const struct pci_device_id ahci_pci_tbl[] = {
{ PCI_VDEVICE(INTEL, 0x9d03), board_ahci }, /* Sunrise Point-LP AHCI */
{ PCI_VDEVICE(INTEL, 0x9d05), board_ahci }, /* Sunrise Point-LP RAID */
{ PCI_VDEVICE(INTEL, 0x9d07), board_ahci }, /* Sunrise Point-LP RAID */
+ { PCI_VDEVICE(INTEL, 0xa102), board_ahci }, /* Sunrise Point-H AHCI */
{ PCI_VDEVICE(INTEL, 0xa103), board_ahci }, /* Sunrise Point-H AHCI */
- { PCI_VDEVICE(INTEL, 0xa103), board_ahci }, /* Sunrise Point-H RAID */
{ PCI_VDEVICE(INTEL, 0xa105), board_ahci }, /* Sunrise Point-H RAID */
+ { PCI_VDEVICE(INTEL, 0xa106), board_ahci }, /* Sunrise Point-H RAID */
{ PCI_VDEVICE(INTEL, 0xa107), board_ahci }, /* Sunrise Point-H RAID */
{ PCI_VDEVICE(INTEL, 0xa10f), board_ahci }, /* Sunrise Point-H RAID */
+ { PCI_VDEVICE(INTEL, 0x2822), board_ahci }, /* Lewisburg RAID*/
+ { PCI_VDEVICE(INTEL, 0x2826), board_ahci }, /* Lewisburg RAID*/
+ { PCI_VDEVICE(INTEL, 0xa182), board_ahci }, /* Lewisburg AHCI*/
+ { PCI_VDEVICE(INTEL, 0xa184), board_ahci }, /* Lewisburg RAID*/
+ { PCI_VDEVICE(INTEL, 0xa186), board_ahci }, /* Lewisburg RAID*/
+ { PCI_VDEVICE(INTEL, 0xa18e), board_ahci }, /* Lewisburg RAID*/
+ { PCI_VDEVICE(INTEL, 0xa202), board_ahci }, /* Lewisburg AHCI*/
+ { PCI_VDEVICE(INTEL, 0xa204), board_ahci }, /* Lewisburg RAID*/
+ { PCI_VDEVICE(INTEL, 0xa206), board_ahci }, /* Lewisburg RAID*/
+ { PCI_VDEVICE(INTEL, 0xa20e), board_ahci }, /* Lewisburg RAID*/

/* JMicron 360/1/3/5/6, match class to avoid IDE function */
{ PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci_ign_iferr },
+ /* JMicron 362B and 362C have an AHCI function with IDE class code */
+ { PCI_VDEVICE(JMICRON, 0x2362), board_ahci_ign_iferr },
+ { PCI_VDEVICE(JMICRON, 0x236f), board_ahci_ign_iferr },

/* ATI */
{ PCI_VDEVICE(ATI, 0x4380), board_ahci_sb600 }, /* ATI SB600 */
@@ -494,6 +510,8 @@ static const struct pci_device_id ahci_pci_tbl[] = {
.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, 0x91a2), /* 88se91a2 */
+ .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),
diff --git a/drivers/block/xen-blkback/common.h b/drivers/block/xen-blkback/common.h
index f67985d..2c6205e 100644
--- a/drivers/block/xen-blkback/common.h
+++ b/drivers/block/xen-blkback/common.h
@@ -238,11 +238,11 @@ static inline void blkif_get_x86_32_req(struct blkif_request *dst,
struct blkif_x86_32_request *src)
{
int i, n = BLKIF_MAX_SEGMENTS_PER_REQUEST;
- dst->operation = src->operation;
+ dst->operation = ACCESS_ONCE(src->operation);
dst->nr_segments = src->nr_segments;
dst->handle = src->handle;
dst->id = src->id;
- switch (src->operation) {
+ switch (dst->operation) {
case BLKIF_OP_READ:
case BLKIF_OP_WRITE:
case BLKIF_OP_WRITE_BARRIER:
@@ -267,11 +267,11 @@ static inline void blkif_get_x86_64_req(struct blkif_request *dst,
struct blkif_x86_64_request *src)
{
int i, n = BLKIF_MAX_SEGMENTS_PER_REQUEST;
- dst->operation = src->operation;
+ dst->operation = ACCESS_ONCE(src->operation);
dst->nr_segments = src->nr_segments;
dst->handle = src->handle;
dst->id = src->id;
- switch (src->operation) {
+ switch (dst->operation) {
case BLKIF_OP_READ:
case BLKIF_OP_WRITE:
case BLKIF_OP_WRITE_BARRIER:
diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c
index 1331740..a03e849 100644
--- a/drivers/cdrom/cdrom.c
+++ b/drivers/cdrom/cdrom.c
@@ -873,6 +873,7 @@ static int cdrom_is_dvd_rw(struct cdrom_device_info *cdi)
switch (cdi->mmc3_profile) {
case 0x12: /* DVD-RAM */
case 0x1A: /* DVD+RW */
+ case 0x43: /* BD-RE */
return 0;
default:
return 1;
diff --git a/drivers/gpu/drm/radeon/radeon_irq_kms.c b/drivers/gpu/drm/radeon/radeon_irq_kms.c
index 42f5a2b..931a8a9 100644
--- a/drivers/gpu/drm/radeon/radeon_irq_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_irq_kms.c
@@ -51,6 +51,11 @@ static void radeon_hotplug_work_func(struct work_struct *work)
struct drm_mode_config *mode_config = &dev->mode_config;
struct drm_connector *connector;

+ /* we can race here at startup, some boards seem to trigger
+ * hotplug irqs when they shouldn't. */
+ if (!rdev->mode_info.mode_config_initialized)
+ return;
+
mutex_lock(&mode_config->mutex);
if (mode_config->num_connector) {
list_for_each_entry(connector, &mode_config->connector_list, head)
diff --git a/drivers/hid/hid-dr.c b/drivers/hid/hid-dr.c
index e832f44..b50dab3 100644
--- a/drivers/hid/hid-dr.c
+++ b/drivers/hid/hid-dr.c
@@ -236,6 +236,58 @@ static __u8 pid0011_rdesc_fixed[] = {
0xC0 /* End Collection */
};

+static __u8 pid0006_rdesc_fixed[] = {
+ 0x05, 0x01, /* Usage Page (Generic Desktop) */
+ 0x09, 0x04, /* Usage (Joystick) */
+ 0xA1, 0x01, /* Collection (Application) */
+ 0xA1, 0x02, /* Collection (Logical) */
+ 0x75, 0x08, /* Report Size (8) */
+ 0x95, 0x05, /* Report Count (5) */
+ 0x15, 0x00, /* Logical Minimum (0) */
+ 0x26, 0xFF, 0x00, /* Logical Maximum (255) */
+ 0x35, 0x00, /* Physical Minimum (0) */
+ 0x46, 0xFF, 0x00, /* Physical Maximum (255) */
+ 0x09, 0x30, /* Usage (X) */
+ 0x09, 0x33, /* Usage (Ry) */
+ 0x09, 0x32, /* Usage (Z) */
+ 0x09, 0x31, /* Usage (Y) */
+ 0x09, 0x34, /* Usage (Ry) */
+ 0x81, 0x02, /* Input (Variable) */
+ 0x75, 0x04, /* Report Size (4) */
+ 0x95, 0x01, /* Report Count (1) */
+ 0x25, 0x07, /* Logical Maximum (7) */
+ 0x46, 0x3B, 0x01, /* Physical Maximum (315) */
+ 0x65, 0x14, /* Unit (Centimeter) */
+ 0x09, 0x39, /* Usage (Hat switch) */
+ 0x81, 0x42, /* Input (Variable) */
+ 0x65, 0x00, /* Unit (None) */
+ 0x75, 0x01, /* Report Size (1) */
+ 0x95, 0x0C, /* Report Count (12) */
+ 0x25, 0x01, /* Logical Maximum (1) */
+ 0x45, 0x01, /* Physical Maximum (1) */
+ 0x05, 0x09, /* Usage Page (Button) */
+ 0x19, 0x01, /* Usage Minimum (0x01) */
+ 0x29, 0x0C, /* Usage Maximum (0x0C) */
+ 0x81, 0x02, /* Input (Variable) */
+ 0x06, 0x00, 0xFF, /* Usage Page (Vendor Defined) */
+ 0x75, 0x01, /* Report Size (1) */
+ 0x95, 0x08, /* Report Count (8) */
+ 0x25, 0x01, /* Logical Maximum (1) */
+ 0x45, 0x01, /* Physical Maximum (1) */
+ 0x09, 0x01, /* Usage (0x01) */
+ 0x81, 0x02, /* Input (Variable) */
+ 0xC0, /* End Collection */
+ 0xA1, 0x02, /* Collection (Logical) */
+ 0x75, 0x08, /* Report Size (8) */
+ 0x95, 0x07, /* Report Count (7) */
+ 0x46, 0xFF, 0x00, /* Physical Maximum (255) */
+ 0x26, 0xFF, 0x00, /* Logical Maximum (255) */
+ 0x09, 0x02, /* Usage (0x02) */
+ 0x91, 0x02, /* Output (Variable) */
+ 0xC0, /* End Collection */
+ 0xC0 /* End Collection */
+};
+
static __u8 *dr_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
@@ -246,6 +298,12 @@ static __u8 *dr_report_fixup(struct hid_device *hdev, __u8 *rdesc,
*rsize = sizeof(pid0011_rdesc_fixed);
}
break;
+ case 0x0006:
+ if (*rsize == sizeof(pid0006_rdesc_fixed)) {
+ rdesc = pid0006_rdesc_fixed;
+ *rsize = sizeof(pid0006_rdesc_fixed);
+ }
+ break;
}
return rdesc;
}
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index 949ea640..ca1b2a4 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -105,6 +105,17 @@ config I2C_I801
Panther Point (PCH)
Lynx Point (PCH)
Lynx Point-LP (PCH)
+ Avoton (SOC)
+ Wellsburg (PCH)
+ Coleto Creek (PCH)
+ Wildcat Point (PCH)
+ Wildcat Point-LP (PCH)
+ BayTrail (SOC)
+ Sunrise Point-H (PCH)
+ Sunrise Point-LP (PCH)
+ DNV (SOC)
+ Broxton (SOC)
+ Lewisburg (PCH)

This driver can also be built as a module. If so, the module
will be called i2c-i801.
diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c
index 817d025..9ce14ac 100644
--- a/drivers/i2c/busses/i2c-i801.c
+++ b/drivers/i2c/busses/i2c-i801.c
@@ -22,48 +22,63 @@
*/

/*
- Supports the following Intel I/O Controller Hubs (ICH):
-
- I/O Block I2C
- region SMBus Block proc. block
- Chip name PCI ID size PEC buffer call read
- ----------------------------------------------------------------------
- 82801AA (ICH) 0x2413 16 no no no no
- 82801AB (ICH0) 0x2423 16 no no no no
- 82801BA (ICH2) 0x2443 16 no no no no
- 82801CA (ICH3) 0x2483 32 soft no no no
- 82801DB (ICH4) 0x24c3 32 hard yes no no
- 82801E (ICH5) 0x24d3 32 hard yes yes yes
- 6300ESB 0x25a4 32 hard yes yes yes
- 82801F (ICH6) 0x266a 32 hard yes yes yes
- 6310ESB/6320ESB 0x269b 32 hard yes yes yes
- 82801G (ICH7) 0x27da 32 hard yes yes yes
- 82801H (ICH8) 0x283e 32 hard yes yes yes
- 82801I (ICH9) 0x2930 32 hard yes yes yes
- EP80579 (Tolapai) 0x5032 32 hard yes yes yes
- ICH10 0x3a30 32 hard yes yes yes
- ICH10 0x3a60 32 hard yes yes yes
- 5/3400 Series (PCH) 0x3b30 32 hard yes yes yes
- 6 Series (PCH) 0x1c22 32 hard yes yes yes
- Patsburg (PCH) 0x1d22 32 hard yes yes yes
- Patsburg (PCH) IDF 0x1d70 32 hard yes yes yes
- Patsburg (PCH) IDF 0x1d71 32 hard yes yes yes
- Patsburg (PCH) IDF 0x1d72 32 hard yes yes yes
- DH89xxCC (PCH) 0x2330 32 hard yes yes yes
- Panther Point (PCH) 0x1e22 32 hard yes yes yes
- Lynx Point (PCH) 0x8c22 32 hard yes yes yes
- Lynx Point-LP (PCH) 0x9c22 32 hard yes yes yes
-
- Features supported by this driver:
- Software PEC no
- Hardware PEC yes
- Block buffer yes
- Block process call transaction no
- I2C block read transaction yes (doesn't use the block buffer)
- Slave mode no
-
- See the file Documentation/i2c/busses/i2c-i801 for details.
-*/
+ * Supports the following Intel I/O Controller Hubs (ICH):
+ *
+ * I/O Block I2C
+ * region SMBus Block proc. block
+ * Chip name PCI ID size PEC buffer call read
+ * ---------------------------------------------------------------------------
+ * 82801AA (ICH) 0x2413 16 no no no no
+ * 82801AB (ICH0) 0x2423 16 no no no no
+ * 82801BA (ICH2) 0x2443 16 no no no no
+ * 82801CA (ICH3) 0x2483 32 soft no no no
+ * 82801DB (ICH4) 0x24c3 32 hard yes no no
+ * 82801E (ICH5) 0x24d3 32 hard yes yes yes
+ * 6300ESB 0x25a4 32 hard yes yes yes
+ * 82801F (ICH6) 0x266a 32 hard yes yes yes
+ * 6310ESB/6320ESB 0x269b 32 hard yes yes yes
+ * 82801G (ICH7) 0x27da 32 hard yes yes yes
+ * 82801H (ICH8) 0x283e 32 hard yes yes yes
+ * 82801I (ICH9) 0x2930 32 hard yes yes yes
+ * EP80579 (Tolapai) 0x5032 32 hard yes yes yes
+ * ICH10 0x3a30 32 hard yes yes yes
+ * ICH10 0x3a60 32 hard yes yes yes
+ * 5/3400 Series (PCH) 0x3b30 32 hard yes yes yes
+ * 6 Series (PCH) 0x1c22 32 hard yes yes yes
+ * Patsburg (PCH) 0x1d22 32 hard yes yes yes
+ * Patsburg (PCH) IDF 0x1d70 32 hard yes yes yes
+ * Patsburg (PCH) IDF 0x1d71 32 hard yes yes yes
+ * Patsburg (PCH) IDF 0x1d72 32 hard yes yes yes
+ * DH89xxCC (PCH) 0x2330 32 hard yes yes yes
+ * Panther Point (PCH) 0x1e22 32 hard yes yes yes
+ * Lynx Point (PCH) 0x8c22 32 hard yes yes yes
+ * Lynx Point-LP (PCH) 0x9c22 32 hard yes yes yes
+ * Avoton (SOC) 0x1f3c 32 hard yes yes yes
+ * Wellsburg (PCH) 0x8d22 32 hard yes yes yes
+ * Wellsburg (PCH) MS 0x8d7d 32 hard yes yes yes
+ * Wellsburg (PCH) MS 0x8d7e 32 hard yes yes yes
+ * Wellsburg (PCH) MS 0x8d7f 32 hard yes yes yes
+ * Coleto Creek (PCH) 0x23b0 32 hard yes yes yes
+ * Wildcat Point (PCH) 0x8ca2 32 hard yes yes yes
+ * Wildcat Point-LP (PCH) 0x9ca2 32 hard yes yes yes
+ * BayTrail (SOC) 0x0f12 32 hard yes yes yes
+ * Sunrise Point-H (PCH) 0xa123 32 hard yes yes yes
+ * Sunrise Point-LP (PCH) 0x9d23 32 hard yes yes yes
+ * DNV (SOC) 0x19df 32 hard yes yes yes
+ * Broxton (SOC) 0x5ad4 32 hard yes yes yes
+ * Lewisburg (PCH) 0xa1a3 32 hard yes yes yes
+ * Lewisburg Supersku (PCH) 0xa223 32 hard yes yes yes
+ *
+ * Features supported by this driver:
+ * Software PEC no
+ * Hardware PEC yes
+ * Block buffer yes
+ * Block process call transaction no
+ * I2C block read transaction yes (doesn't use the block buffer)
+ * Slave mode no
+ *
+ * See the file Documentation/i2c/busses/i2c-i801 for details.
+ */

#include <linux/module.h>
#include <linux/pci.h>
@@ -138,17 +153,33 @@
SMBHSTSTS_INTR)

/* Older devices have their ID defined in <linux/pci_ids.h> */
-#define PCI_DEVICE_ID_INTEL_COUGARPOINT_SMBUS 0x1c22
-#define PCI_DEVICE_ID_INTEL_PATSBURG_SMBUS 0x1d22
+#define PCI_DEVICE_ID_INTEL_BAYTRAIL_SMBUS 0x0f12
+#define PCI_DEVICE_ID_INTEL_BRASWELL_SMBUS 0x2292
+#define PCI_DEVICE_ID_INTEL_COUGARPOINT_SMBUS 0x1c22
+#define PCI_DEVICE_ID_INTEL_PATSBURG_SMBUS 0x1d22
/* Patsburg also has three 'Integrated Device Function' SMBus controllers */
-#define PCI_DEVICE_ID_INTEL_PATSBURG_SMBUS_IDF0 0x1d70
-#define PCI_DEVICE_ID_INTEL_PATSBURG_SMBUS_IDF1 0x1d71
-#define PCI_DEVICE_ID_INTEL_PATSBURG_SMBUS_IDF2 0x1d72
-#define PCI_DEVICE_ID_INTEL_PANTHERPOINT_SMBUS 0x1e22
-#define PCI_DEVICE_ID_INTEL_DH89XXCC_SMBUS 0x2330
-#define PCI_DEVICE_ID_INTEL_5_3400_SERIES_SMBUS 0x3b30
-#define PCI_DEVICE_ID_INTEL_LYNXPOINT_SMBUS 0x8c22
-#define PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_SMBUS 0x9c22
+#define PCI_DEVICE_ID_INTEL_PATSBURG_SMBUS_IDF0 0x1d70
+#define PCI_DEVICE_ID_INTEL_PATSBURG_SMBUS_IDF1 0x1d71
+#define PCI_DEVICE_ID_INTEL_PATSBURG_SMBUS_IDF2 0x1d72
+#define PCI_DEVICE_ID_INTEL_PANTHERPOINT_SMBUS 0x1e22
+#define PCI_DEVICE_ID_INTEL_AVOTON_SMBUS 0x1f3c
+#define PCI_DEVICE_ID_INTEL_DH89XXCC_SMBUS 0x2330
+#define PCI_DEVICE_ID_INTEL_COLETOCREEK_SMBUS 0x23b0
+#define PCI_DEVICE_ID_INTEL_5_3400_SERIES_SMBUS 0x3b30
+#define PCI_DEVICE_ID_INTEL_LYNXPOINT_SMBUS 0x8c22
+#define PCI_DEVICE_ID_INTEL_WILDCATPOINT_SMBUS 0x8ca2
+#define PCI_DEVICE_ID_INTEL_WELLSBURG_SMBUS 0x8d22
+#define PCI_DEVICE_ID_INTEL_WELLSBURG_SMBUS_MS0 0x8d7d
+#define PCI_DEVICE_ID_INTEL_WELLSBURG_SMBUS_MS1 0x8d7e
+#define PCI_DEVICE_ID_INTEL_WELLSBURG_SMBUS_MS2 0x8d7f
+#define PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_SMBUS 0x9c22
+#define PCI_DEVICE_ID_INTEL_WILDCATPOINT_LP_SMBUS 0x9ca2
+#define PCI_DEVICE_ID_INTEL_SUNRISEPOINT_H_SMBUS 0xa123
+#define PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_SMBUS 0x9d23
+#define PCI_DEVICE_ID_INTEL_DNV_SMBUS 0x19df
+#define PCI_DEVICE_ID_INTEL_BROXTON_SMBUS 0x5ad4
+#define PCI_DEVICE_ID_INTEL_LEWISBURG_SMBUS 0xa1a3
+#define PCI_DEVICE_ID_INTEL_LEWISBURG_SSKU_SMBUS 0xa223

struct i801_priv {
struct i2c_adapter adapter;
@@ -639,6 +670,22 @@ static const struct pci_device_id i801_ids[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PANTHERPOINT_SMBUS) },
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_LYNXPOINT_SMBUS) },
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_SMBUS) },
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_AVOTON_SMBUS) },
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_WELLSBURG_SMBUS) },
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_WELLSBURG_SMBUS_MS0) },
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_WELLSBURG_SMBUS_MS1) },
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_WELLSBURG_SMBUS_MS2) },
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_COLETOCREEK_SMBUS) },
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_WILDCATPOINT_SMBUS) },
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_WILDCATPOINT_LP_SMBUS) },
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BAYTRAIL_SMBUS) },
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BRASWELL_SMBUS) },
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SUNRISEPOINT_H_SMBUS) },
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_SMBUS) },
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_DNV_SMBUS) },
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BROXTON_SMBUS) },
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_LEWISBURG_SMBUS) },
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_LEWISBURG_SSKU_SMBUS) },
{ 0, }
};

@@ -786,6 +833,9 @@ static int __devinit i801_probe(struct pci_dev *dev,
case PCI_DEVICE_ID_INTEL_PATSBURG_SMBUS_IDF0:
case PCI_DEVICE_ID_INTEL_PATSBURG_SMBUS_IDF1:
case PCI_DEVICE_ID_INTEL_PATSBURG_SMBUS_IDF2:
+ case PCI_DEVICE_ID_INTEL_WELLSBURG_SMBUS_MS0:
+ case PCI_DEVICE_ID_INTEL_WELLSBURG_SMBUS_MS1:
+ case PCI_DEVICE_ID_INTEL_WELLSBURG_SMBUS_MS2:
priv->features |= FEATURE_IDF;
/* fall through */
default:
diff --git a/drivers/isdn/gigaset/ser-gigaset.c b/drivers/isdn/gigaset/ser-gigaset.c
index 86a5c4f..cf3c1d4 100644
--- a/drivers/isdn/gigaset/ser-gigaset.c
+++ b/drivers/isdn/gigaset/ser-gigaset.c
@@ -371,19 +371,23 @@ static void gigaset_freecshw(struct cardstate *cs)
tasklet_kill(&cs->write_tasklet);
if (!cs->hw.ser)
return;
- dev_set_drvdata(&cs->hw.ser->dev.dev, NULL);
platform_device_unregister(&cs->hw.ser->dev);
- kfree(cs->hw.ser);
- cs->hw.ser = NULL;
}

static void gigaset_device_release(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
+ struct cardstate *cs = dev_get_drvdata(dev);

/* adapted from platform_device_release() in drivers/base/platform.c */
kfree(dev->platform_data);
kfree(pdev->resource);
+
+ if (!cs)
+ return;
+ dev_set_drvdata(dev, NULL);
+ kfree(cs->hw.ser);
+ cs->hw.ser = NULL;
}

/*
diff --git a/drivers/isdn/hardware/mISDN/mISDNipac.c b/drivers/isdn/hardware/mISDN/mISDNipac.c
index d2ffb1d..6614b28 100644
--- a/drivers/isdn/hardware/mISDN/mISDNipac.c
+++ b/drivers/isdn/hardware/mISDN/mISDNipac.c
@@ -1156,7 +1156,7 @@ mISDNipac_irq(struct ipac_hw *ipac, int maxloop)

if (ipac->type & IPAC_TYPE_IPACX) {
ista = ReadIPAC(ipac, ISACX_ISTA);
- while (ista && cnt--) {
+ while (ista && --cnt) {
pr_debug("%s: ISTA %02x\n", ipac->name, ista);
if (ista & IPACX__ICA)
ipac_irq(&ipac->hscx[0], ista);
@@ -1168,7 +1168,7 @@ mISDNipac_irq(struct ipac_hw *ipac, int maxloop)
}
} else if (ipac->type & IPAC_TYPE_IPAC) {
ista = ReadIPAC(ipac, IPAC_ISTA);
- while (ista && cnt--) {
+ while (ista && --cnt) {
pr_debug("%s: ISTA %02x\n", ipac->name, ista);
if (ista & (IPAC__ICD | IPAC__EXD)) {
istad = ReadISAC(isac, ISAC_ISTA);
@@ -1186,7 +1186,7 @@ mISDNipac_irq(struct ipac_hw *ipac, int maxloop)
ista = ReadIPAC(ipac, IPAC_ISTA);
}
} else if (ipac->type & IPAC_TYPE_HSCX) {
- while (cnt) {
+ while (--cnt) {
ista = ReadIPAC(ipac, IPAC_ISTAB + ipac->hscx[1].off);
pr_debug("%s: B2 ISTA %02x\n", ipac->name, ista);
if (ista)
@@ -1197,7 +1197,6 @@ mISDNipac_irq(struct ipac_hw *ipac, int maxloop)
mISDNisac_irq(isac, istad);
if (0 == (ista | istad))
break;
- cnt--;
}
}
if (cnt > maxloop) /* only for ISAC/HSCX without PCI IRQ test */
diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index e49208d..9842fd9 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -1499,8 +1499,7 @@ static int sh_eth_start_xmit(struct sk_buff *skb, struct net_device *ndev)
txdesc = &mdp->tx_ring[entry];
/* soft swap. */
if (!mdp->cd->hw_swap)
- sh_eth_soft_swap(phys_to_virt(ALIGN(txdesc->addr, 4)),
- skb->len + 2);
+ sh_eth_soft_swap(PTR_ALIGN(skb->data, 4), skb->len + 2);
txdesc->addr = dma_map_single(&ndev->dev, skb->data, skb->len,
DMA_TO_DEVICE);
if (skb->len < ETHERSMALL)
diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c
index b2528f6..7b71257 100644
--- a/drivers/net/xen-netback/netback.c
+++ b/drivers/net/xen-netback/netback.c
@@ -406,17 +406,17 @@ static struct netbk_rx_meta *get_next_rx_buffer(struct xenvif *vif,
struct netrx_pending_operations *npo)
{
struct netbk_rx_meta *meta;
- struct xen_netif_rx_request *req;
+ struct xen_netif_rx_request req;

- req = RING_GET_REQUEST(&vif->rx, vif->rx.req_cons++);
+ RING_COPY_REQUEST(&vif->rx, vif->rx.req_cons++, &req);

meta = npo->meta + npo->meta_prod++;
meta->gso_size = 0;
meta->size = 0;
- meta->id = req->id;
+ meta->id = req.id;

npo->copy_off = 0;
- npo->copy_gref = req->gref;
+ npo->copy_gref = req.gref;

return meta;
}
@@ -518,7 +518,7 @@ static int netbk_gop_skb(struct sk_buff *skb,
struct xenvif *vif = netdev_priv(skb->dev);
int nr_frags = skb_shinfo(skb)->nr_frags;
int i;
- struct xen_netif_rx_request *req;
+ struct xen_netif_rx_request req;
struct netbk_rx_meta *meta;
unsigned char *data;
int head = 1;
@@ -528,14 +528,14 @@ static int netbk_gop_skb(struct sk_buff *skb,

/* Set up a GSO prefix descriptor, if necessary */
if (skb_shinfo(skb)->gso_size && vif->gso_prefix) {
- req = RING_GET_REQUEST(&vif->rx, vif->rx.req_cons++);
+ RING_COPY_REQUEST(&vif->rx, vif->rx.req_cons++, &req);
meta = npo->meta + npo->meta_prod++;
meta->gso_size = skb_shinfo(skb)->gso_size;
meta->size = 0;
- meta->id = req->id;
+ meta->id = req.id;
}

- req = RING_GET_REQUEST(&vif->rx, vif->rx.req_cons++);
+ RING_COPY_REQUEST(&vif->rx, vif->rx.req_cons++, &req);
meta = npo->meta + npo->meta_prod++;

if (!vif->gso_prefix)
@@ -544,9 +544,9 @@ static int netbk_gop_skb(struct sk_buff *skb,
meta->gso_size = 0;

meta->size = 0;
- meta->id = req->id;
+ meta->id = req.id;
npo->copy_off = 0;
- npo->copy_gref = req->gref;
+ npo->copy_gref = req.gref;

data = skb->data;
while (data < skb_tail_pointer(skb)) {
@@ -864,9 +864,7 @@ static void tx_add_credit(struct xenvif *vif)
* Allow a burst big enough to transmit a jumbo packet of up to 128kB.
* Otherwise the interface can seize up due to insufficient credit.
*/
- max_burst = RING_GET_REQUEST(&vif->tx, vif->tx.req_cons)->size;
- max_burst = min(max_burst, 131072UL);
- max_burst = max(max_burst, vif->credit_bytes);
+ max_burst = max(131072UL, vif->credit_bytes);

/* Take care that adding a new chunk of credit doesn't wrap to zero. */
max_credit = vif->remaining_credit + vif->credit_bytes;
@@ -892,7 +890,7 @@ static void netbk_tx_err(struct xenvif *vif,
make_tx_response(vif, txp, XEN_NETIF_RSP_ERROR);
if (cons == end)
break;
- txp = RING_GET_REQUEST(&vif->tx, cons++);
+ RING_COPY_REQUEST(&vif->tx, cons++, txp);
} while (1);
vif->tx.req_cons = cons;
xen_netbk_check_rx_xenvif(vif);
@@ -959,8 +957,7 @@ static int netbk_count_requests(struct xenvif *vif,
if (drop_err)
txp = &dropped_tx;

- memcpy(txp, RING_GET_REQUEST(&vif->tx, cons + slots),
- sizeof(*txp));
+ RING_COPY_REQUEST(&vif->tx, cons + slots, txp);

/* If the guest submitted a frame >= 64 KiB then
* first->size overflowed and following slots will
@@ -1248,8 +1245,7 @@ static int xen_netbk_get_extras(struct xenvif *vif,
return -EBADR;
}

- memcpy(&extra, RING_GET_REQUEST(&vif->tx, cons),
- sizeof(extra));
+ RING_COPY_REQUEST(&vif->tx, cons, &extra);
if (unlikely(!extra.type ||
extra.type >= XEN_NETIF_EXTRA_TYPE_MAX)) {
vif->tx.req_cons = ++cons;
@@ -1444,7 +1440,7 @@ static unsigned xen_netbk_tx_build_gops(struct xen_netbk *netbk)

idx = vif->tx.req_cons;
rmb(); /* Ensure that we see the request before we copy it. */
- memcpy(&txreq, RING_GET_REQUEST(&vif->tx, idx), sizeof(txreq));
+ RING_COPY_REQUEST(&vif->tx, idx, &txreq);

/* Credit-based scheduling. */
if (txreq.size > vif->remaining_credit &&
diff --git a/drivers/scsi/ses.c b/drivers/scsi/ses.c
index eba183c..3643bbf 100644
--- a/drivers/scsi/ses.c
+++ b/drivers/scsi/ses.c
@@ -70,6 +70,7 @@ static int ses_probe(struct device *dev)
static int ses_recv_diag(struct scsi_device *sdev, int page_code,
void *buf, int bufflen)
{
+ int ret;
unsigned char cmd[] = {
RECEIVE_DIAGNOSTIC,
1, /* Set PCV bit */
@@ -78,9 +79,26 @@ static int ses_recv_diag(struct scsi_device *sdev, int page_code,
bufflen & 0xff,
0
};
+ unsigned char recv_page_code;

- return scsi_execute_req(sdev, cmd, DMA_FROM_DEVICE, buf, bufflen,
+ ret = scsi_execute_req(sdev, cmd, DMA_FROM_DEVICE, buf, bufflen,
NULL, SES_TIMEOUT, SES_RETRIES, NULL);
+ if (unlikely(!ret))
+ return ret;
+
+ recv_page_code = ((unsigned char *)buf)[0];
+
+ if (likely(recv_page_code == page_code))
+ return ret;
+
+ /* successful diagnostic but wrong page code. This happens to some
+ * USB devices, just print a message and pretend there was an error */
+
+ sdev_printk(KERN_ERR, sdev,
+ "Wrong diagnostic page; asked for %d got %u\n",
+ page_code, recv_page_code);
+
+ return -EINVAL;
}

static int ses_send_diag(struct scsi_device *sdev, int page_code,
@@ -436,7 +454,15 @@ static void ses_enclosure_data_process(struct enclosure_device *edev,
if (desc_ptr)
desc_ptr += len;

- if (addl_desc_ptr)
+ if (addl_desc_ptr &&
+ /* only find additional descriptions for specific devices */
+ (type_ptr[0] == ENCLOSURE_COMPONENT_DEVICE ||
+ type_ptr[0] == ENCLOSURE_COMPONENT_ARRAY_DEVICE ||
+ type_ptr[0] == ENCLOSURE_COMPONENT_SAS_EXPANDER ||
+ /* these elements are optional */
+ type_ptr[0] == ENCLOSURE_COMPONENT_SCSI_TARGET_PORT ||
+ type_ptr[0] == ENCLOSURE_COMPONENT_SCSI_INITIATOR_PORT ||
+ type_ptr[0] == ENCLOSURE_COMPONENT_CONTROLLER_ELECTRONICS))
addl_desc_ptr += addl_desc_ptr[1] + 2;

}
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index b2ccdea..f978051 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -554,7 +554,7 @@ struct spi_master *spi_alloc_master(struct device *dev, unsigned size)

device_initialize(&master->dev);
master->dev.class = &spi_master_class;
- master->dev.parent = get_device(dev);
+ master->dev.parent = dev;
spi_master_set_devdata(master, &master[1]);

return master;
diff --git a/drivers/tty/tty_buffer.c b/drivers/tty/tty_buffer.c
index 4f02f9c..a846618 100644
--- a/drivers/tty/tty_buffer.c
+++ b/drivers/tty/tty_buffer.c
@@ -442,10 +442,12 @@ static void flush_to_ldisc(struct work_struct *work)
char_buf = head->char_buf_ptr + head->read;
flag_buf = head->flag_buf_ptr + head->read;
head->read += count;
- spin_unlock_irqrestore(&tty->buf.lock, flags);
- disc->ops->receive_buf(tty, char_buf,
+ if (disc->ops->receive_buf) {
+ spin_unlock_irqrestore(&tty->buf.lock, flags);
+ disc->ops->receive_buf(tty, char_buf,
flag_buf, count);
- spin_lock_irqsave(&tty->buf.lock, flags);
+ spin_lock_irqsave(&tty->buf.lock, flags);
+ }
}
clear_bit(TTY_FLUSHING, &tty->flags);
}
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 7cfe286..dde0330 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -153,7 +153,7 @@ EXPORT_SYMBOL_GPL(ehci_cf_port_reset_rwsem);
#define HUB_DEBOUNCE_STEP 25
#define HUB_DEBOUNCE_STABLE 100

-
+static void hub_release(struct kref *kref);
static int usb_reset_and_verify_device(struct usb_device *udev);

static inline char *portspeed(struct usb_hub *hub, int portstatus)
@@ -792,10 +792,20 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type)
unsigned delay;

/* Continue a partial initialization */
- if (type == HUB_INIT2)
- goto init2;
- if (type == HUB_INIT3)
+ if (type == HUB_INIT2 || type == HUB_INIT3) {
+ device_lock(hub->intfdev);
+
+ /* Was the hub disconnected while we were waiting? */
+ if (hub->disconnected) {
+ device_unlock(hub->intfdev);
+ kref_put(&hub->kref, hub_release);
+ return;
+ }
+ if (type == HUB_INIT2)
+ goto init2;
goto init3;
+ }
+ kref_get(&hub->kref);

/* The superspeed hub except for root hub has to use Hub Depth
* value as an offset into the route string to locate the bits
@@ -984,6 +994,7 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type)
PREPARE_DELAYED_WORK(&hub->init_work, hub_init_func3);
schedule_delayed_work(&hub->init_work,
msecs_to_jiffies(delay));
+ device_unlock(hub->intfdev);
return; /* Continues at init3: below */
} else {
msleep(delay);
@@ -1004,6 +1015,11 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type)
/* Allow autosuspend if it was suppressed */
if (type <= HUB_INIT3)
usb_autopm_put_interface_async(to_usb_interface(hub->intfdev));
+
+ if (type == HUB_INIT2 || type == HUB_INIT3)
+ device_unlock(hub->intfdev);
+
+ kref_put(&hub->kref, hub_release);
}

/* Implement the continuations for the delays above */
diff --git a/drivers/usb/serial/ipaq.c b/drivers/usb/serial/ipaq.c
index 4735931..fa3ddf9 100644
--- a/drivers/usb/serial/ipaq.c
+++ b/drivers/usb/serial/ipaq.c
@@ -582,7 +582,8 @@ static int ipaq_open(struct tty_struct *tty,
* through. Since this has a reasonably high failure rate, we retry
* several times.
*/
- while (retries--) {
+ while (retries) {
+ retries--;
result = usb_control_msg(serial->dev,
usb_sndctrlpipe(serial->dev, 0), 0x22, 0x21,
0x1, 0, NULL, 0, 100);
diff --git a/drivers/video/fsl-diu-fb.c b/drivers/video/fsl-diu-fb.c
index a16beeb..b7f6485 100644
--- a/drivers/video/fsl-diu-fb.c
+++ b/drivers/video/fsl-diu-fb.c
@@ -446,7 +446,10 @@ static enum fsl_diu_monitor_port fsl_diu_name_to_port(const char *s)
port = FSL_DIU_PORT_DLVDS;
}

- return diu_ops.valid_monitor_port(port);
+ if (diu_ops.valid_monitor_port)
+ port = diu_ops.valid_monitor_port(port);
+
+ return port;
}

/**
@@ -1759,6 +1762,14 @@ static int __init fsl_diu_init(void)
#else
monitor_port = fsl_diu_name_to_port(monitor_string);
#endif
+
+ /*
+ * Must to verify set_pixel_clock. If not implement on platform,
+ * then that means that there is no platform support for the DIU.
+ */
+ if (!diu_ops.set_pixel_clock)
+ return -ENODEV;
+
pr_info("Freescale Display Interface Unit (DIU) framebuffer driver\n");

#ifdef CONFIG_NOT_COHERENT_CACHE
diff --git a/drivers/xen/xen-pciback/pciback.h b/drivers/xen/xen-pciback/pciback.h
index e9b4011..9447fcb 100644
--- a/drivers/xen/xen-pciback/pciback.h
+++ b/drivers/xen/xen-pciback/pciback.h
@@ -37,6 +37,7 @@ struct xen_pcibk_device {
struct xen_pci_sharedinfo *sh_info;
unsigned long flags;
struct work_struct op_work;
+ struct xen_pci_op op;
};

struct xen_pcibk_dev_data {
diff --git a/drivers/xen/xen-pciback/pciback_ops.c b/drivers/xen/xen-pciback/pciback_ops.c
index e947e78..31c8580 100644
--- a/drivers/xen/xen-pciback/pciback_ops.c
+++ b/drivers/xen/xen-pciback/pciback_ops.c
@@ -68,6 +68,13 @@ static void xen_pcibk_control_isr(struct pci_dev *dev, int reset)
enable ? "enable" : "disable");

if (enable) {
+ /*
+ * The MSI or MSI-X should not have an IRQ handler. Otherwise
+ * if the guest terminates we BUG_ON in free_msi_irqs.
+ */
+ if (dev->msi_enabled || dev->msix_enabled)
+ goto out;
+
rc = request_irq(dev_data->irq,
xen_pcibk_guest_interrupt, IRQF_SHARED,
dev_data->irq_name, dev);
@@ -142,7 +149,12 @@ int xen_pcibk_enable_msi(struct xen_pcibk_device *pdev,
if (unlikely(verbose_request))
printk(KERN_DEBUG DRV_NAME ": %s: enable MSI\n", pci_name(dev));

- status = pci_enable_msi(dev);
+ if (dev->msi_enabled)
+ status = -EALREADY;
+ else if (dev->msix_enabled)
+ status = -ENXIO;
+ else
+ status = pci_enable_msi(dev);

if (status) {
pr_warn_ratelimited(DRV_NAME ": %s: error enabling MSI for guest %u: err %d\n",
@@ -171,20 +183,23 @@ static
int xen_pcibk_disable_msi(struct xen_pcibk_device *pdev,
struct pci_dev *dev, struct xen_pci_op *op)
{
- struct xen_pcibk_dev_data *dev_data;
-
if (unlikely(verbose_request))
printk(KERN_DEBUG DRV_NAME ": %s: disable MSI\n",
pci_name(dev));
- pci_disable_msi(dev);

+ if (dev->msi_enabled) {
+ struct xen_pcibk_dev_data *dev_data;
+
+ pci_disable_msi(dev);
+
+ dev_data = pci_get_drvdata(dev);
+ if (dev_data)
+ dev_data->ack_intr = 1;
+ }
op->value = dev->irq ? xen_pirq_from_irq(dev->irq) : 0;
if (unlikely(verbose_request))
printk(KERN_DEBUG DRV_NAME ": %s: MSI: %d\n", pci_name(dev),
op->value);
- dev_data = pci_get_drvdata(dev);
- if (dev_data)
- dev_data->ack_intr = 1;
return 0;
}

@@ -195,13 +210,26 @@ int xen_pcibk_enable_msix(struct xen_pcibk_device *pdev,
struct xen_pcibk_dev_data *dev_data;
int i, result;
struct msix_entry *entries;
+ u16 cmd;

if (unlikely(verbose_request))
printk(KERN_DEBUG DRV_NAME ": %s: enable MSI-X\n",
pci_name(dev));
+
if (op->value > SH_INFO_MAX_VEC)
return -EINVAL;

+ if (dev->msix_enabled)
+ return -EALREADY;
+
+ /*
+ * PCI_COMMAND_MEMORY must be enabled, otherwise we may not be able
+ * to access the BARs where the MSI-X entries reside.
+ */
+ pci_read_config_word(dev, PCI_COMMAND, &cmd);
+ if (dev->msi_enabled || !(cmd & PCI_COMMAND_MEMORY))
+ return -ENXIO;
+
entries = kmalloc(op->value * sizeof(*entries), GFP_KERNEL);
if (entries == NULL)
return -ENOMEM;
@@ -243,23 +271,27 @@ static
int xen_pcibk_disable_msix(struct xen_pcibk_device *pdev,
struct pci_dev *dev, struct xen_pci_op *op)
{
- struct xen_pcibk_dev_data *dev_data;
if (unlikely(verbose_request))
printk(KERN_DEBUG DRV_NAME ": %s: disable MSI-X\n",
pci_name(dev));
- pci_disable_msix(dev);

+ if (dev->msix_enabled) {
+ struct xen_pcibk_dev_data *dev_data;
+
+ pci_disable_msix(dev);
+
+ dev_data = pci_get_drvdata(dev);
+ if (dev_data)
+ dev_data->ack_intr = 1;
+ }
/*
* SR-IOV devices (which don't have any legacy IRQ) have
* an undefined IRQ value of zero.
*/
op->value = dev->irq ? xen_pirq_from_irq(dev->irq) : 0;
if (unlikely(verbose_request))
- printk(KERN_DEBUG DRV_NAME ": %s: MSI-X: %d\n", pci_name(dev),
- op->value);
- dev_data = pci_get_drvdata(dev);
- if (dev_data)
- dev_data->ack_intr = 1;
+ printk(KERN_DEBUG DRV_NAME ": %s: MSI-X: %d\n",
+ pci_name(dev), op->value);
return 0;
}
#endif
@@ -296,9 +328,11 @@ void xen_pcibk_do_op(struct work_struct *data)
container_of(data, struct xen_pcibk_device, op_work);
struct pci_dev *dev;
struct xen_pcibk_dev_data *dev_data = NULL;
- struct xen_pci_op *op = &pdev->sh_info->op;
+ struct xen_pci_op *op = &pdev->op;
int test_intx = 0;

+ *op = pdev->sh_info->op;
+ barrier();
dev = xen_pcibk_get_pci_dev(pdev, op->domain, op->bus, op->devfn);

if (dev == NULL)
@@ -340,6 +374,17 @@ void xen_pcibk_do_op(struct work_struct *data)
if ((dev_data->enable_intx != test_intx))
xen_pcibk_control_isr(dev, 0 /* no reset */);
}
+ pdev->sh_info->op.err = op->err;
+ pdev->sh_info->op.value = op->value;
+#ifdef CONFIG_PCI_MSI
+ if (op->cmd == XEN_PCI_OP_enable_msix && op->err == 0) {
+ unsigned int i;
+
+ for (i = 0; i < op->value; i++)
+ pdev->sh_info->op.msix_entries[i].vector =
+ op->msix_entries[i].vector;
+ }
+#endif
/* Tell the driver domain that we're done. */
wmb();
clear_bit(_XEN_PCIF_active, (unsigned long *)&pdev->sh_info->flags);
diff --git a/fs/ocfs2/resize.c b/fs/ocfs2/resize.c
index ec55add..2ca64fa 100644
--- a/fs/ocfs2/resize.c
+++ b/fs/ocfs2/resize.c
@@ -56,11 +56,12 @@ static u16 ocfs2_calc_new_backup_super(struct inode *inode,
int new_clusters,
u32 first_new_cluster,
u16 cl_cpg,
+ u16 old_bg_clusters,
int set)
{
int i;
u16 backups = 0;
- u32 cluster;
+ u32 cluster, lgd_cluster;
u64 blkno, gd_blkno, lgd_blkno = le64_to_cpu(gd->bg_blkno);

for (i = 0; i < OCFS2_MAX_BACKUP_SUPERBLOCKS; i++) {
@@ -73,6 +74,12 @@ static u16 ocfs2_calc_new_backup_super(struct inode *inode,
else if (gd_blkno > lgd_blkno)
break;

+ /* check if already done backup super */
+ lgd_cluster = ocfs2_blocks_to_clusters(inode->i_sb, lgd_blkno);
+ lgd_cluster += old_bg_clusters;
+ if (lgd_cluster >= cluster)
+ continue;
+
if (set)
ocfs2_set_bit(cluster % cl_cpg,
(unsigned long *)gd->bg_bitmap);
@@ -101,6 +108,7 @@ static int ocfs2_update_last_group_and_inode(handle_t *handle,
u16 chain, num_bits, backups = 0;
u16 cl_bpc = le16_to_cpu(cl->cl_bpc);
u16 cl_cpg = le16_to_cpu(cl->cl_cpg);
+ u16 old_bg_clusters;

trace_ocfs2_update_last_group_and_inode(new_clusters,
first_new_cluster);
@@ -114,6 +122,7 @@ static int ocfs2_update_last_group_and_inode(handle_t *handle,

group = (struct ocfs2_group_desc *)group_bh->b_data;

+ old_bg_clusters = le16_to_cpu(group->bg_bits) / cl_bpc;
/* update the group first. */
num_bits = new_clusters * cl_bpc;
le16_add_cpu(&group->bg_bits, num_bits);
@@ -129,7 +138,7 @@ static int ocfs2_update_last_group_and_inode(handle_t *handle,
group,
new_clusters,
first_new_cluster,
- cl_cpg, 1);
+ cl_cpg, old_bg_clusters, 1);
le16_add_cpu(&group->bg_free_bits_count, -1 * backups);
}

@@ -169,7 +178,7 @@ out_rollback:
group,
new_clusters,
first_new_cluster,
- cl_cpg, 0);
+ cl_cpg, old_bg_clusters, 0);
le16_add_cpu(&group->bg_free_bits_count, backups);
le16_add_cpu(&group->bg_bits, -1 * num_bits);
le16_add_cpu(&group->bg_free_bits_count, -1 * num_bits);
diff --git a/include/linux/enclosure.h b/include/linux/enclosure.h
index 9a33c5f..f6c229e 100644
--- a/include/linux/enclosure.h
+++ b/include/linux/enclosure.h
@@ -29,7 +29,11 @@
/* A few generic types ... taken from ses-2 */
enum enclosure_component_type {
ENCLOSURE_COMPONENT_DEVICE = 0x01,
+ ENCLOSURE_COMPONENT_CONTROLLER_ELECTRONICS = 0x07,
+ ENCLOSURE_COMPONENT_SCSI_TARGET_PORT = 0x14,
+ ENCLOSURE_COMPONENT_SCSI_INITIATOR_PORT = 0x15,
ENCLOSURE_COMPONENT_ARRAY_DEVICE = 0x17,
+ ENCLOSURE_COMPONENT_SAS_EXPANDER = 0x18,
};

/* ses-2 common element status */
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index d0c9e6d..d9c4a60 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -2134,8 +2134,7 @@ extern int skb_copy_datagram_iovec(const struct sk_buff *from,
int size);
extern int skb_copy_and_csum_datagram_iovec(struct sk_buff *skb,
int hlen,
- struct iovec *iov,
- int len);
+ struct iovec *iov);
extern int skb_copy_datagram_from_iovec(struct sk_buff *skb,
int offset,
const struct iovec *from,
diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h
index 2cccd82..9069f8d 100644
--- a/include/net/sctp/structs.h
+++ b/include/net/sctp/structs.h
@@ -1586,7 +1586,8 @@ struct sctp_association {
* : order. When DATA chunks are out of order,
* : SACK's are not delayed (see Section 6).
*/
- __u8 sack_needed; /* Do we need to sack the peer? */
+ __u8 sack_needed:1, /* Do we need to sack the peer? */
+ zero_window_announced:1;
__u32 sack_cnt;

/* These are capabilities which our peer advertised. */
diff --git a/include/net/sock.h b/include/net/sock.h
index ce6f641..38fcee9 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -302,8 +302,8 @@ struct sock {
sk_no_check : 2,
sk_userlocks : 4,
sk_protocol : 8,
-#define SK_PROTOCOL_MAX ((u8)~0U)
sk_type : 16;
+#define SK_PROTOCOL_MAX ((u8)~0U)
kmemcheck_bitfield_end(flags);
int sk_wmem_queued;
gfp_t sk_allocation;
diff --git a/include/sound/tlv.h b/include/sound/tlv.h
index 7067e2d..49e7bd6 100644
--- a/include/sound/tlv.h
+++ b/include/sound/tlv.h
@@ -38,21 +38,26 @@
#define SNDRV_CTL_TLVT_DB_MINMAX 4 /* dB scale with min/max */
#define SNDRV_CTL_TLVT_DB_MINMAX_MUTE 5 /* dB scale with min/max with mute */

+#define TLV_ITEM(type, ...) \
+ (type), TLV_LENGTH(__VA_ARGS__), __VA_ARGS__
+#define TLV_LENGTH(...) \
+ ((unsigned int)sizeof((const unsigned int[]) { __VA_ARGS__ }))
+
#define TLV_DB_SCALE_MASK 0xffff
#define TLV_DB_SCALE_MUTE 0x10000
#define TLV_DB_SCALE_ITEM(min, step, mute) \
- SNDRV_CTL_TLVT_DB_SCALE, 2 * sizeof(unsigned int), \
- (min), ((step) & TLV_DB_SCALE_MASK) | ((mute) ? TLV_DB_SCALE_MUTE : 0)
+ TLV_ITEM(SNDRV_CTL_TLVT_DB_SCALE, \
+ (min), \
+ ((step) & TLV_DB_SCALE_MASK) | \
+ ((mute) ? TLV_DB_SCALE_MUTE : 0))
#define DECLARE_TLV_DB_SCALE(name, min, step, mute) \
unsigned int name[] = { TLV_DB_SCALE_ITEM(min, step, mute) }

/* dB scale specified with min/max values instead of step */
#define TLV_DB_MINMAX_ITEM(min_dB, max_dB) \
- SNDRV_CTL_TLVT_DB_MINMAX, 2 * sizeof(unsigned int), \
- (min_dB), (max_dB)
+ TLV_ITEM(SNDRV_CTL_TLVT_DB_MINMAX, (min_dB), (max_dB))
#define TLV_DB_MINMAX_MUTE_ITEM(min_dB, max_dB) \
- SNDRV_CTL_TLVT_DB_MINMAX_MUTE, 2 * sizeof(unsigned int), \
- (min_dB), (max_dB)
+ TLV_ITEM(SNDRV_CTL_TLVT_DB_MINMAX_MUTE, (min_dB), (max_dB))
#define DECLARE_TLV_DB_MINMAX(name, min_dB, max_dB) \
unsigned int name[] = { TLV_DB_MINMAX_ITEM(min_dB, max_dB) }
#define DECLARE_TLV_DB_MINMAX_MUTE(name, min_dB, max_dB) \
@@ -60,13 +65,16 @@

/* linear volume between min_dB and max_dB (.01dB unit) */
#define TLV_DB_LINEAR_ITEM(min_dB, max_dB) \
- SNDRV_CTL_TLVT_DB_LINEAR, 2 * sizeof(unsigned int), \
- (min_dB), (max_dB)
+ TLV_ITEM(SNDRV_CTL_TLVT_DB_LINEAR, (min_dB), (max_dB))
#define DECLARE_TLV_DB_LINEAR(name, min_dB, max_dB) \
unsigned int name[] = { TLV_DB_LINEAR_ITEM(min_dB, max_dB) }

/* dB range container */
/* Each item is: <min> <max> <TLV> */
+#define TLV_DB_RANGE_ITEM(...) \
+ TLV_ITEM(SNDRV_CTL_TLVT_DB_RANGE, __VA_ARGS__)
+#define DECLARE_TLV_DB_RANGE(name, ...) \
+ unsigned int name[] = { TLV_DB_RANGE_ITEM(__VA_ARGS__) }
/* The below assumes that each item TLV is 4 words like DB_SCALE or LINEAR */
#define TLV_DB_RANGE_HEAD(num) \
SNDRV_CTL_TLVT_DB_RANGE, 6 * (num) * sizeof(unsigned int)
diff --git a/include/xen/interface/io/ring.h b/include/xen/interface/io/ring.h
index 7d28aff..7dc685b4 100644
--- a/include/xen/interface/io/ring.h
+++ b/include/xen/interface/io/ring.h
@@ -181,6 +181,20 @@ struct __name##_back_ring { \
#define RING_GET_REQUEST(_r, _idx) \
(&((_r)->sring->ring[((_idx) & (RING_SIZE(_r) - 1))].req))

+/*
+ * Get a local copy of a request.
+ *
+ * Use this in preference to RING_GET_REQUEST() so all processing is
+ * done on a local copy that cannot be modified by the other end.
+ *
+ * Note that https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58145 may cause this
+ * to be ineffective where _req is a struct which consists of only bitfields.
+ */
+#define RING_COPY_REQUEST(_r, _idx, _req) do { \
+ /* Use volatile to force the copy into _req. */ \
+ *(_req) = *(volatile typeof(_req))RING_GET_REQUEST(_r, _idx); \
+} while (0)
+
#define RING_GET_RESPONSE(_r, _idx) \
(&((_r)->sring->ring[((_idx) & (RING_SIZE(_r) - 1))].rsp))

diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index 127a32e..8080f98 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -1200,6 +1200,7 @@ static struct irqaction *__free_irq(unsigned int irq, void *dev_id)
if (!desc)
return NULL;

+ chip_bus_lock(desc);
raw_spin_lock_irqsave(&desc->lock, flags);

/*
@@ -1213,7 +1214,7 @@ static struct irqaction *__free_irq(unsigned int irq, void *dev_id)
if (!action) {
WARN(1, "Trying to free already-free IRQ %d\n", irq);
raw_spin_unlock_irqrestore(&desc->lock, flags);
-
+ chip_bus_sync_unlock(desc);
return NULL;
}

@@ -1242,6 +1243,7 @@ static struct irqaction *__free_irq(unsigned int irq, void *dev_id)
#endif

raw_spin_unlock_irqrestore(&desc->lock, flags);
+ chip_bus_sync_unlock(desc);

unregister_handler_proc(irq, action);

@@ -1316,9 +1318,7 @@ void free_irq(unsigned int irq, void *dev_id)
desc->affinity_notify = NULL;
#endif

- chip_bus_lock(desc);
kfree(__free_irq(irq, dev_id));
- chip_bus_sync_unlock(desc);
}
EXPORT_SYMBOL(free_irq);

diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 09d87b7..223232a 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -716,23 +716,30 @@ int is_mem_section_removable(unsigned long start_pfn, unsigned long nr_pages)
*/
static int test_pages_in_a_zone(unsigned long start_pfn, unsigned long end_pfn)
{
- unsigned long pfn;
+ unsigned long pfn, sec_end_pfn;
struct zone *zone = NULL;
struct page *page;
int i;
- for (pfn = start_pfn;
+ for (pfn = start_pfn, sec_end_pfn = SECTION_ALIGN_UP(start_pfn);
pfn < end_pfn;
- pfn += MAX_ORDER_NR_PAGES) {
- i = 0;
- /* This is just a CONFIG_HOLES_IN_ZONE check.*/
- while ((i < MAX_ORDER_NR_PAGES) && !pfn_valid_within(pfn + i))
- i++;
- if (i == MAX_ORDER_NR_PAGES)
+ pfn = sec_end_pfn + 1, sec_end_pfn += PAGES_PER_SECTION) {
+ /* Make sure the memory section is present first */
+ if (!present_section_nr(pfn_to_section_nr(pfn)))
continue;
- page = pfn_to_page(pfn + i);
- if (zone && page_zone(page) != zone)
- return 0;
- zone = page_zone(page);
+ for (; pfn < sec_end_pfn && pfn < end_pfn;
+ pfn += MAX_ORDER_NR_PAGES) {
+ i = 0;
+ /* This is just a CONFIG_HOLES_IN_ZONE check.*/
+ while ((i < MAX_ORDER_NR_PAGES) &&
+ !pfn_valid_within(pfn + i))
+ i++;
+ if (i == MAX_ORDER_NR_PAGES)
+ continue;
+ page = pfn_to_page(pfn + i);
+ if (zone && page_zone(page) != zone)
+ return 0;
+ zone = page_zone(page);
+ }
}
return 1;
}
diff --git a/mm/vmstat.c b/mm/vmstat.c
index 14d8cb4..887e83f 100644
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -1203,9 +1203,10 @@ static int __init setup_vmstat(void)
#ifdef CONFIG_SMP
int cpu;

+ vmstat_wq = alloc_workqueue("vmstat", WQ_FREEZABLE|WQ_MEM_RECLAIM, 0);
+
register_cpu_notifier(&vmstat_notifier);

- vmstat_wq = alloc_workqueue("vmstat", WQ_FREEZABLE|WQ_MEM_RECLAIM, 0);
for_each_online_cpu(cpu)
start_cpu_timer(cpu);
#endif
diff --git a/net/core/datagram.c b/net/core/datagram.c
index 6616bfb..a496313 100644
--- a/net/core/datagram.c
+++ b/net/core/datagram.c
@@ -709,7 +709,6 @@ EXPORT_SYMBOL(__skb_checksum_complete);
* @skb: skbuff
* @hlen: hardware length
* @iov: io vector
- * @len: amount of data to copy from skb to iov
*
* Caller _must_ check that skb will fit to this iovec.
*
@@ -719,14 +718,11 @@ EXPORT_SYMBOL(__skb_checksum_complete);
* can be modified!
*/
int skb_copy_and_csum_datagram_iovec(struct sk_buff *skb,
- int hlen, struct iovec *iov, int len)
+ int hlen, struct iovec *iov)
{
__wsum csum;
int chunk = skb->len - hlen;

- if (chunk > len)
- chunk = len;
-
if (!chunk)
return 0;

diff --git a/net/core/dev.c b/net/core/dev.c
index 9a95205..ec29958 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -5446,7 +5446,10 @@ int __netdev_update_features(struct net_device *dev)
netdev_err(dev,
"set_features() failed (%d); wanted 0x%08x, left 0x%08x\n",
err, features, dev->features);
- return 0;
+ /* return non-0 since some features might have changed and
+ * it's better to fire a spurious notification than miss it
+ */
+ return -1;
}

if (!err)
diff --git a/net/core/dst.c b/net/core/dst.c
index 946e214..59381de 100644
--- a/net/core/dst.c
+++ b/net/core/dst.c
@@ -269,10 +269,11 @@ void dst_release(struct dst_entry *dst)
{
if (dst) {
int newrefcnt;
+ unsigned short nocache = dst->flags & DST_NOCACHE;

newrefcnt = atomic_dec_return(&dst->__refcnt);
WARN_ON(newrefcnt < 0);
- if (!newrefcnt && unlikely(dst->flags & DST_NOCACHE)) {
+ if (!newrefcnt && unlikely(nocache)) {
dst = dst_destroy(dst);
if (dst)
__dst_free(dst);
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 3877e16..039e40f 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -5198,7 +5198,7 @@ static int tcp_copy_to_iovec(struct sock *sk, struct sk_buff *skb, int hlen)
err = skb_copy_datagram_iovec(skb, hlen, tp->ucopy.iov, chunk);
else
err = skb_copy_and_csum_datagram_iovec(skb, hlen,
- tp->ucopy.iov, chunk);
+ tp->ucopy.iov);

if (!err) {
tp->ucopy.len -= chunk;
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index b111221..f602611 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -1172,6 +1172,7 @@ int udp_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
int peeked;
int err;
int is_udplite = IS_UDPLITE(sk);
+ bool checksum_valid = false;
bool slow;

if (flags & MSG_ERRQUEUE)
@@ -1197,17 +1198,18 @@ try_again:
*/

if (copied < ulen || UDP_SKB_CB(skb)->partial_cov) {
- if (udp_lib_checksum_complete(skb))
+ checksum_valid = !udp_lib_checksum_complete(skb);
+ if (!checksum_valid)
goto csum_copy_err;
}

- if (skb_csum_unnecessary(skb))
+ if (checksum_valid || skb_csum_unnecessary(skb))
err = skb_copy_datagram_iovec(skb, sizeof(struct udphdr),
msg->msg_iov, copied);
else {
err = skb_copy_and_csum_datagram_iovec(skb,
sizeof(struct udphdr),
- msg->msg_iov, copied);
+ msg->msg_iov);

if (err == -EINVAL)
goto csum_copy_err;
diff --git a/net/ipv6/addrlabel.c b/net/ipv6/addrlabel.c
index 2d8ddba..c8c6a12 100644
--- a/net/ipv6/addrlabel.c
+++ b/net/ipv6/addrlabel.c
@@ -558,7 +558,7 @@ static int ip6addrlbl_get(struct sk_buff *in_skb, struct nlmsghdr* nlh,

rcu_read_lock();
p = __ipv6_addr_label(net, addr, ipv6_addr_type(addr), ifal->ifal_index);
- if (p && ip6addrlbl_hold(p))
+ if (p && !ip6addrlbl_hold(p))
p = NULL;
lseq = ip6addrlbl_table.seq;
rcu_read_unlock();
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index d1e528c..bebc821 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -479,7 +479,7 @@ static int rawv6_recvmsg(struct kiocb *iocb, struct sock *sk,
goto csum_copy_err;
err = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied);
} else {
- err = skb_copy_and_csum_datagram_iovec(skb, 0, msg->msg_iov, copied);
+ err = skb_copy_and_csum_datagram_iovec(skb, 0, msg->msg_iov);
if (err == -EINVAL)
goto csum_copy_err;
}
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 3308803..03a7ed1 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -344,6 +344,7 @@ int udpv6_recvmsg(struct kiocb *iocb, struct sock *sk,
int peeked;
int err;
int is_udplite = IS_UDPLITE(sk);
+ bool checksum_valid = false;
int is_udp4;
bool slow;

@@ -375,16 +376,16 @@ try_again:
*/

if (copied < ulen || UDP_SKB_CB(skb)->partial_cov) {
- if (udp_lib_checksum_complete(skb))
+ checksum_valid = !udp_lib_checksum_complete(skb);
+ if (!checksum_valid)
goto csum_copy_err;
}

- if (skb_csum_unnecessary(skb))
+ if (checksum_valid || skb_csum_unnecessary(skb))
err = skb_copy_datagram_iovec(skb, sizeof(struct udphdr),
msg->msg_iov, copied );
else {
- err = skb_copy_and_csum_datagram_iovec(skb, sizeof(struct udphdr),
- msg->msg_iov, copied);
+ err = skb_copy_and_csum_datagram_iovec(skb, sizeof(struct udphdr), msg->msg_iov);
if (err == -EINVAL)
goto csum_copy_err;
}
diff --git a/net/rfkill/core.c b/net/rfkill/core.c
index 5be1957..13d0fb6 100644
--- a/net/rfkill/core.c
+++ b/net/rfkill/core.c
@@ -50,7 +50,6 @@
struct rfkill {
spinlock_t lock;

- const char *name;
enum rfkill_type type;

unsigned long state;
@@ -74,6 +73,7 @@ struct rfkill {
struct delayed_work poll_work;
struct work_struct uevent_work;
struct work_struct sync_work;
+ char name[];
};
#define to_rfkill(d) container_of(d, struct rfkill, dev)

@@ -848,14 +848,14 @@ struct rfkill * __must_check rfkill_alloc(const char *name,
if (WARN_ON(type == RFKILL_TYPE_ALL || type >= NUM_RFKILL_TYPES))
return NULL;

- rfkill = kzalloc(sizeof(*rfkill), GFP_KERNEL);
+ rfkill = kzalloc(sizeof(*rfkill) + strlen(name) + 1, GFP_KERNEL);
if (!rfkill)
return NULL;

spin_lock_init(&rfkill->lock);
INIT_LIST_HEAD(&rfkill->node);
rfkill->type = type;
- rfkill->name = name;
+ strcpy(rfkill->name, name);
rfkill->ops = ops;
rfkill->data = ops_data;

diff --git a/net/rxrpc/ar-recvmsg.c b/net/rxrpc/ar-recvmsg.c
index c67f5d3..5cc2da5 100644
--- a/net/rxrpc/ar-recvmsg.c
+++ b/net/rxrpc/ar-recvmsg.c
@@ -185,8 +185,7 @@ int rxrpc_recvmsg(struct kiocb *iocb, struct socket *sock,
msg->msg_iov, copy);
} else {
ret = skb_copy_and_csum_datagram_iovec(skb, offset,
- msg->msg_iov,
- copy);
+ msg->msg_iov);
if (ret == -EINVAL)
goto csum_copy_error;
}
diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c
index 1f9a6f7..054c6a2 100644
--- a/net/sctp/ipv6.c
+++ b/net/sctp/ipv6.c
@@ -314,14 +314,13 @@ static void sctp_v6_get_dst(struct sctp_transport *t, union sctp_addr *saddr,
}
}
}
- rcu_read_unlock();
-
if (baddr) {
ipv6_addr_copy(&fl6->saddr, &baddr->v6.sin6_addr);
fl6->fl6_sport = baddr->v6.sin6_port;
final_p = fl6_update_dst(fl6, np->opt, &final);
dst = ip6_dst_lookup_flow(sk, fl6, final_p, false);
}
+ rcu_read_unlock();

out:
if (!IS_ERR(dst)) {
diff --git a/net/sctp/outqueue.c b/net/sctp/outqueue.c
index 3dd7207..7b28546 100644
--- a/net/sctp/outqueue.c
+++ b/net/sctp/outqueue.c
@@ -1265,6 +1265,7 @@ int sctp_outq_sack(struct sctp_outq *q, struct sctp_sackhdr *sack)
*/

sack_a_rwnd = ntohl(sack->a_rwnd);
+ asoc->peer.zero_window_announced = !sack_a_rwnd;
outstanding = q->outstanding_bytes;

if (outstanding < sack_a_rwnd)
diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c
index d02dd3c..eb638dd 100644
--- a/net/sctp/sm_statefuns.c
+++ b/net/sctp/sm_statefuns.c
@@ -5302,7 +5302,8 @@ sctp_disposition_t sctp_sf_do_6_3_3_rtx(const struct sctp_endpoint *ep,
SCTP_INC_STATS(SCTP_MIB_T3_RTX_EXPIREDS);

if (asoc->overall_error_count >= asoc->max_retrans) {
- if (asoc->state == SCTP_STATE_SHUTDOWN_PENDING) {
+ if (asoc->peer.zero_window_announced &&
+ asoc->state == SCTP_STATE_SHUTDOWN_PENDING) {
/*
* We are here likely because the receiver had its rwnd
* closed for a while and we have not been able to
diff --git a/scripts/recordmcount.c b/scripts/recordmcount.c
index ee52cb8..0d5ae4a 100644
--- a/scripts/recordmcount.c
+++ b/scripts/recordmcount.c
@@ -35,12 +35,17 @@

static int fd_map; /* File descriptor for file being modified. */
static int mmap_failed; /* Boolean flag. */
-static void *ehdr_curr; /* current ElfXX_Ehdr * for resource cleanup */
static char gpfx; /* prefix for global symbol name (sometimes '_') */
static struct stat sb; /* Remember .st_size, etc. */
static jmp_buf jmpenv; /* setjmp/longjmp per-file error escape */
static const char *altmcount; /* alternate mcount symbol name */
static int warn_on_notrace_sect; /* warn when section has mcount not being recorded */
+static void *file_map; /* pointer of the mapped file */
+static void *file_end; /* pointer to the end of the mapped file */
+static int file_updated; /* flag to state file was changed */
+static void *file_ptr; /* current file pointer location */
+static void *file_append; /* added to the end of the file */
+static size_t file_append_size; /* how much is added to end of file */

/* setjmp() return values */
enum {
@@ -54,10 +59,14 @@ static void
cleanup(void)
{
if (!mmap_failed)
- munmap(ehdr_curr, sb.st_size);
+ munmap(file_map, sb.st_size);
else
- free(ehdr_curr);
- close(fd_map);
+ free(file_map);
+ file_map = NULL;
+ free(file_append);
+ file_append = NULL;
+ file_append_size = 0;
+ file_updated = 0;
}

static void __attribute__((noreturn))
@@ -79,12 +88,22 @@ succeed_file(void)
static off_t
ulseek(int const fd, off_t const offset, int const whence)
{
- off_t const w = lseek(fd, offset, whence);
- if (w == (off_t)-1) {
- perror("lseek");
+ switch (whence) {
+ case SEEK_SET:
+ file_ptr = file_map + offset;
+ break;
+ case SEEK_CUR:
+ file_ptr += offset;
+ break;
+ case SEEK_END:
+ file_ptr = file_map + (sb.st_size - offset);
+ break;
+ }
+ if (file_ptr < file_map) {
+ fprintf(stderr, "lseek: seek before file\n");
fail_file();
}
- return w;
+ return file_ptr - file_map;
}

static size_t
@@ -101,12 +120,38 @@ uread(int const fd, void *const buf, size_t const count)
static size_t
uwrite(int const fd, void const *const buf, size_t const count)
{
- size_t const n = write(fd, buf, count);
- if (n != count) {
- perror("write");
- fail_file();
+ size_t cnt = count;
+ off_t idx = 0;
+
+ file_updated = 1;
+
+ if (file_ptr + count >= file_end) {
+ off_t aoffset = (file_ptr + count) - file_end;
+
+ if (aoffset > file_append_size) {
+ file_append = realloc(file_append, aoffset);
+ file_append_size = aoffset;
+ }
+ if (!file_append) {
+ perror("write");
+ fail_file();
+ }
+ if (file_ptr < file_end) {
+ cnt = file_end - file_ptr;
+ } else {
+ cnt = 0;
+ idx = aoffset - count;
+ }
}
- return n;
+
+ if (cnt)
+ memcpy(file_ptr, buf, cnt);
+
+ if (cnt < count)
+ memcpy(file_append + idx, buf + cnt, count - cnt);
+
+ file_ptr += count;
+ return count;
}

static void *
@@ -163,9 +208,7 @@ static int make_nop_x86(void *map, size_t const offset)
*/
static void *mmap_file(char const *fname)
{
- void *addr;
-
- fd_map = open(fname, O_RDWR);
+ fd_map = open(fname, O_RDONLY);
if (fd_map < 0 || fstat(fd_map, &sb) < 0) {
perror(fname);
fail_file();
@@ -174,15 +217,58 @@ static void *mmap_file(char const *fname)
fprintf(stderr, "not a regular file: %s\n", fname);
fail_file();
}
- addr = mmap(0, sb.st_size, PROT_READ|PROT_WRITE, MAP_PRIVATE,
- fd_map, 0);
+ file_map = mmap(0, sb.st_size, PROT_READ|PROT_WRITE, MAP_PRIVATE,
+ fd_map, 0);
mmap_failed = 0;
- if (addr == MAP_FAILED) {
+ if (file_map == MAP_FAILED) {
mmap_failed = 1;
- addr = umalloc(sb.st_size);
- uread(fd_map, addr, sb.st_size);
+ file_map = umalloc(sb.st_size);
+ uread(fd_map, file_map, sb.st_size);
+ }
+ close(fd_map);
+
+ file_end = file_map + sb.st_size;
+
+ return file_map;
+}
+
+static void write_file(const char *fname)
+{
+ char tmp_file[strlen(fname) + 4];
+ size_t n;
+
+ if (!file_updated)
+ return;
+
+ sprintf(tmp_file, "%s.rc", fname);
+
+ /*
+ * After reading the entire file into memory, delete it
+ * and write it back, to prevent weird side effects of modifying
+ * an object file in place.
+ */
+ fd_map = open(tmp_file, O_WRONLY | O_TRUNC | O_CREAT, sb.st_mode);
+ if (fd_map < 0) {
+ perror(fname);
+ fail_file();
+ }
+ n = write(fd_map, file_map, sb.st_size);
+ if (n != sb.st_size) {
+ perror("write");
+ fail_file();
+ }
+ if (file_append_size) {
+ n = write(fd_map, file_append, file_append_size);
+ if (n != file_append_size) {
+ perror("write");
+ fail_file();
+ }
+ }
+ close(fd_map);
+ if (rename(tmp_file, fname) < 0) {
+ perror(fname);
+ fail_file();
}
- return addr;
}

/* w8rev, w8nat, ...: Handle endianness. */
@@ -289,7 +375,6 @@ do_file(char const *const fname)
Elf32_Ehdr *const ehdr = mmap_file(fname);
unsigned int reltype = 0;

- ehdr_curr = ehdr;
w = w4nat;
w2 = w2nat;
w8 = w8nat;
@@ -401,6 +486,7 @@ do_file(char const *const fname)
}
} /* end switch */

+ write_file(fname);
cleanup();
}

@@ -453,11 +539,14 @@ main(int argc, char *argv[])
case SJ_SETJMP: /* normal sequence */
/* Avoid problems if early cleanup() */
fd_map = -1;
- ehdr_curr = NULL;
mmap_failed = 1;
+ file_map = NULL;
+ file_ptr = NULL;
+ file_updated = 0;
do_file(file);
break;
case SJ_FAIL: /* error in do_file or below */
+ fprintf(stderr, "%s: failed\n", file);
++n_error;
break;
case SJ_SUCCEED: /* premature success */
diff --git a/security/keys/keyctl.c b/security/keys/keyctl.c
index b70eaa2..234ce30 100644
--- a/security/keys/keyctl.c
+++ b/security/keys/keyctl.c
@@ -688,16 +688,16 @@ long keyctl_read_key(key_serial_t keyid, char __user *buffer, size_t buflen)

/* the key is probably readable - now try to read it */
can_read_key:
- ret = key_validate(key);
- if (ret == 0) {
- ret = -EOPNOTSUPP;
- if (key->type->read) {
- /* read the data with the semaphore held (since we
- * might sleep) */
- down_read(&key->sem);
+ ret = -EOPNOTSUPP;
+ if (key->type->read) {
+ /* Read the data with the semaphore held (since we might sleep)
+ * to protect against the key being updated or revoked.
+ */
+ down_read(&key->sem);
+ ret = key_validate(key);
+ if (ret == 0)
ret = key->type->read(key, buffer, buflen);
- up_read(&key->sem);
- }
+ up_read(&key->sem);
}

error2:
diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c
index 488e531..2dc90a4 100644
--- a/sound/usb/mixer.c
+++ b/sound/usb/mixer.c
@@ -1213,6 +1213,8 @@ static void build_feature_ctl(struct mixer_build *state, void *raw_desc,
break;
}

+ snd_usb_mixer_fu_apply_quirk(state->mixer, cval, unitid, kctl);
+
range = (cval->max - cval->min) / cval->res;
/* Are there devices with volume range more than 255? I use a bit more
* to be sure. 384 is a resolution magic number found on Logitech
diff --git a/sound/usb/mixer_maps.c b/sound/usb/mixer_maps.c
index 893b750..cb98040 100644
--- a/sound/usb/mixer_maps.c
+++ b/sound/usb/mixer_maps.c
@@ -319,13 +319,6 @@ static struct usbmix_name_map bose_companion5_map[] = {
{ 0 } /* terminator */
};

-/* Dragonfly DAC 1.2, the dB conversion factor is 1 instead of 256 */
-static struct usbmix_dB_map dragonfly_1_2_dB = {0, 5000};
-static struct usbmix_name_map dragonfly_1_2_map[] = {
- { 7, NULL, .dB = &dragonfly_1_2_dB },
- { 0 } /* terminator */
-};
-
/*
* Control map entries
*/
@@ -413,11 +406,6 @@ static struct usbmix_ctl_map usbmix_ctl_maps[] = {
.id = USB_ID(0x05a7, 0x1020),
.map = bose_companion5_map,
},
- {
- /* Dragonfly DAC 1.2 */
- .id = USB_ID(0x21b4, 0x0081),
- .map = dragonfly_1_2_map,
- },
{ 0 } /* terminator */
};

diff --git a/sound/usb/mixer_quirks.c b/sound/usb/mixer_quirks.c
index 040d101..21f4d44 100644
--- a/sound/usb/mixer_quirks.c
+++ b/sound/usb/mixer_quirks.c
@@ -34,6 +34,7 @@
#include <sound/control.h>
#include <sound/hwdep.h>
#include <sound/info.h>
+#include <sound/tlv.h>

#include "usbaudio.h"
#include "mixer.h"
@@ -682,3 +683,39 @@ void snd_usb_mixer_rc_memory_change(struct usb_mixer_interface *mixer,
}
}

+static void snd_dragonfly_quirk_db_scale(struct usb_mixer_interface *mixer,
+ struct snd_kcontrol *kctl)
+{
+ /* Approximation using 10 ranges based on output measurement on hw v1.2.
+ * This seems close to the cubic mapping e.g. alsamixer uses. */
+ static const DECLARE_TLV_DB_RANGE(scale,
+ 0, 1, TLV_DB_MINMAX_ITEM(-5300, -4970),
+ 2, 5, TLV_DB_MINMAX_ITEM(-4710, -4160),
+ 6, 7, TLV_DB_MINMAX_ITEM(-3884, -3710),
+ 8, 14, TLV_DB_MINMAX_ITEM(-3443, -2560),
+ 15, 16, TLV_DB_MINMAX_ITEM(-2475, -2324),
+ 17, 19, TLV_DB_MINMAX_ITEM(-2228, -2031),
+ 20, 26, TLV_DB_MINMAX_ITEM(-1910, -1393),
+ 27, 31, TLV_DB_MINMAX_ITEM(-1322, -1032),
+ 32, 40, TLV_DB_MINMAX_ITEM(-968, -490),
+ 41, 50, TLV_DB_MINMAX_ITEM(-441, 0),
+ );
+
+ dev_info(&mixer->chip->dev->dev, "applying DragonFly dB scale quirk\n");
+ kctl->tlv.p = scale;
+ kctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_TLV_READ;
+ kctl->vd[0].access &= ~SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK;
+}
+
+void snd_usb_mixer_fu_apply_quirk(struct usb_mixer_interface *mixer,
+ struct usb_mixer_elem_info *cval, int unitid,
+ struct snd_kcontrol *kctl)
+{
+ switch (mixer->chip->usb_id) {
+ case USB_ID(0x21b4, 0x0081): /* AudioQuest DragonFly */
+ if (unitid == 7 && cval->min == 0 && cval->max == 50)
+ snd_dragonfly_quirk_db_scale(mixer, kctl);
+ break;
+ }
+}
+
diff --git a/sound/usb/mixer_quirks.h b/sound/usb/mixer_quirks.h
index bdbfab0..177c329 100644
--- a/sound/usb/mixer_quirks.h
+++ b/sound/usb/mixer_quirks.h
@@ -9,5 +9,9 @@ void snd_emuusb_set_samplerate(struct snd_usb_audio *chip,
void snd_usb_mixer_rc_memory_change(struct usb_mixer_interface *mixer,
int unitid);

+void snd_usb_mixer_fu_apply_quirk(struct usb_mixer_interface *mixer,
+ struct usb_mixer_elem_info *cval, int unitid,
+ struct snd_kcontrol *kctl);
+
#endif /* SND_USB_MIXER_QUIRKS_H */

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