Re: Linux 5.0.10

From: Greg KH
Date: Sat Apr 27 2019 - 08:45:00 EST

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diff --git a/Makefile b/Makefile
index ef192ca04330..b282c4143b21 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
VERSION = 5
PATCHLEVEL = 0
-SUBLEVEL = 9
+SUBLEVEL = 10
EXTRAVERSION =
NAME = Shy Crocodile

@@ -678,8 +678,7 @@ KBUILD_CFLAGS += $(call cc-disable-warning, format-overflow)
KBUILD_CFLAGS += $(call cc-disable-warning, int-in-bool-context)

ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
-KBUILD_CFLAGS += $(call cc-option,-Oz,-Os)
-KBUILD_CFLAGS += $(call cc-disable-warning,maybe-uninitialized,)
+KBUILD_CFLAGS += -Os $(call cc-disable-warning,maybe-uninitialized,)
else
ifdef CONFIG_PROFILE_ALL_BRANCHES
KBUILD_CFLAGS += -O2 $(call cc-disable-warning,maybe-uninitialized,)
diff --git a/arch/arm64/include/asm/futex.h b/arch/arm64/include/asm/futex.h
index e1d95f08f8e1..c7e1a7837706 100644
--- a/arch/arm64/include/asm/futex.h
+++ b/arch/arm64/include/asm/futex.h
@@ -50,7 +50,7 @@ do { \
static inline int
arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *_uaddr)
{
- int oldval, ret, tmp;
+ int oldval = 0, ret, tmp;
u32 __user *uaddr = __uaccess_mask_ptr(_uaddr);

pagefault_disable();
diff --git a/arch/s390/boot/mem_detect.c b/arch/s390/boot/mem_detect.c
index 4cb771ba13fa..5d316fe40480 100644
--- a/arch/s390/boot/mem_detect.c
+++ b/arch/s390/boot/mem_detect.c
@@ -25,7 +25,7 @@ static void *mem_detect_alloc_extended(void)
{
unsigned long offset = ALIGN(mem_safe_offset(), sizeof(u64));

- if (IS_ENABLED(BLK_DEV_INITRD) && INITRD_START && INITRD_SIZE &&
+ if (IS_ENABLED(CONFIG_BLK_DEV_INITRD) && INITRD_START && INITRD_SIZE &&
INITRD_START < offset + ENTRIES_EXTENDED_MAX)
offset = ALIGN(INITRD_START + INITRD_SIZE, sizeof(u64));

diff --git a/arch/x86/crypto/poly1305-avx2-x86_64.S b/arch/x86/crypto/poly1305-avx2-x86_64.S
index 3b6e70d085da..8457cdd47f75 100644
--- a/arch/x86/crypto/poly1305-avx2-x86_64.S
+++ b/arch/x86/crypto/poly1305-avx2-x86_64.S
@@ -323,6 +323,12 @@ ENTRY(poly1305_4block_avx2)
vpaddq t2,t1,t1
vmovq t1x,d4

+ # Now do a partial reduction mod (2^130)-5, carrying h0 -> h1 -> h2 ->
+ # h3 -> h4 -> h0 -> h1 to get h0,h2,h3,h4 < 2^26 and h1 < 2^26 + a small
+ # amount. Careful: we must not assume the carry bits 'd0 >> 26',
+ # 'd1 >> 26', 'd2 >> 26', 'd3 >> 26', and '(d4 >> 26) * 5' fit in 32-bit
+ # integers. It's true in a single-block implementation, but not here.
+
# d1 += d0 >> 26
mov d0,%rax
shr $26,%rax
@@ -361,16 +367,16 @@ ENTRY(poly1305_4block_avx2)
# h0 += (d4 >> 26) * 5
mov d4,%rax
shr $26,%rax
- lea (%eax,%eax,4),%eax
- add %eax,%ebx
+ lea (%rax,%rax,4),%rax
+ add %rax,%rbx
# h4 = d4 & 0x3ffffff
mov d4,%rax
and $0x3ffffff,%eax
mov %eax,h4

# h1 += h0 >> 26
- mov %ebx,%eax
- shr $26,%eax
+ mov %rbx,%rax
+ shr $26,%rax
add %eax,h1
# h0 = h0 & 0x3ffffff
andl $0x3ffffff,%ebx
diff --git a/arch/x86/crypto/poly1305-sse2-x86_64.S b/arch/x86/crypto/poly1305-sse2-x86_64.S
index c88c670cb5fc..5851c7418fb7 100644
--- a/arch/x86/crypto/poly1305-sse2-x86_64.S
+++ b/arch/x86/crypto/poly1305-sse2-x86_64.S
@@ -253,16 +253,16 @@ ENTRY(poly1305_block_sse2)
# h0 += (d4 >> 26) * 5
mov d4,%rax
shr $26,%rax
- lea (%eax,%eax,4),%eax
- add %eax,%ebx
+ lea (%rax,%rax,4),%rax
+ add %rax,%rbx
# h4 = d4 & 0x3ffffff
mov d4,%rax
and $0x3ffffff,%eax
mov %eax,h4

# h1 += h0 >> 26
- mov %ebx,%eax
- shr $26,%eax
+ mov %rbx,%rax
+ shr $26,%rax
add %eax,h1
# h0 = h0 & 0x3ffffff
andl $0x3ffffff,%ebx
@@ -520,6 +520,12 @@ ENTRY(poly1305_2block_sse2)
paddq t2,t1
movq t1,d4

+ # Now do a partial reduction mod (2^130)-5, carrying h0 -> h1 -> h2 ->
+ # h3 -> h4 -> h0 -> h1 to get h0,h2,h3,h4 < 2^26 and h1 < 2^26 + a small
+ # amount. Careful: we must not assume the carry bits 'd0 >> 26',
+ # 'd1 >> 26', 'd2 >> 26', 'd3 >> 26', and '(d4 >> 26) * 5' fit in 32-bit
+ # integers. It's true in a single-block implementation, but not here.
+
# d1 += d0 >> 26
mov d0,%rax
shr $26,%rax
@@ -558,16 +564,16 @@ ENTRY(poly1305_2block_sse2)
# h0 += (d4 >> 26) * 5
mov d4,%rax
shr $26,%rax
- lea (%eax,%eax,4),%eax
- add %eax,%ebx
+ lea (%rax,%rax,4),%rax
+ add %rax,%rbx
# h4 = d4 & 0x3ffffff
mov d4,%rax
and $0x3ffffff,%eax
mov %eax,h4

# h1 += h0 >> 26
- mov %ebx,%eax
- shr $26,%eax
+ mov %rbx,%rax
+ shr $26,%rax
add %eax,h1
# h0 = h0 & 0x3ffffff
andl $0x3ffffff,%ebx
diff --git a/arch/x86/events/amd/core.c b/arch/x86/events/amd/core.c
index 0ecfac84ba91..d45f3fbd232e 100644
--- a/arch/x86/events/amd/core.c
+++ b/arch/x86/events/amd/core.c
@@ -117,22 +117,39 @@ static __initconst const u64 amd_hw_cache_event_ids
};

/*
- * AMD Performance Monitor K7 and later.
+ * AMD Performance Monitor K7 and later, up to and including Family 16h:
*/
static const u64 amd_perfmon_event_map[PERF_COUNT_HW_MAX] =
{
- [PERF_COUNT_HW_CPU_CYCLES] = 0x0076,
- [PERF_COUNT_HW_INSTRUCTIONS] = 0x00c0,
- [PERF_COUNT_HW_CACHE_REFERENCES] = 0x077d,
- [PERF_COUNT_HW_CACHE_MISSES] = 0x077e,
- [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = 0x00c2,
- [PERF_COUNT_HW_BRANCH_MISSES] = 0x00c3,
- [PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = 0x00d0, /* "Decoder empty" event */
- [PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = 0x00d1, /* "Dispatch stalls" event */
+ [PERF_COUNT_HW_CPU_CYCLES] = 0x0076,
+ [PERF_COUNT_HW_INSTRUCTIONS] = 0x00c0,
+ [PERF_COUNT_HW_CACHE_REFERENCES] = 0x077d,
+ [PERF_COUNT_HW_CACHE_MISSES] = 0x077e,
+ [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = 0x00c2,
+ [PERF_COUNT_HW_BRANCH_MISSES] = 0x00c3,
+ [PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = 0x00d0, /* "Decoder empty" event */
+ [PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = 0x00d1, /* "Dispatch stalls" event */
+};
+
+/*
+ * AMD Performance Monitor Family 17h and later:
+ */
+static const u64 amd_f17h_perfmon_event_map[PERF_COUNT_HW_MAX] =
+{
+ [PERF_COUNT_HW_CPU_CYCLES] = 0x0076,
+ [PERF_COUNT_HW_INSTRUCTIONS] = 0x00c0,
+ [PERF_COUNT_HW_CACHE_REFERENCES] = 0xff60,
+ [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = 0x00c2,
+ [PERF_COUNT_HW_BRANCH_MISSES] = 0x00c3,
+ [PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = 0x0287,
+ [PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = 0x0187,
};

static u64 amd_pmu_event_map(int hw_event)
{
+ if (boot_cpu_data.x86 >= 0x17)
+ return amd_f17h_perfmon_event_map[hw_event];
+
return amd_perfmon_event_map[hw_event];
}

diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c
index 2480feb07df3..470d7daa915d 100644
--- a/arch/x86/events/intel/core.c
+++ b/arch/x86/events/intel/core.c
@@ -3130,7 +3130,7 @@ static unsigned long intel_pmu_large_pebs_flags(struct perf_event *event)
flags &= ~PERF_SAMPLE_TIME;
if (!event->attr.exclude_kernel)
flags &= ~PERF_SAMPLE_REGS_USER;
- if (event->attr.sample_regs_user & ~PEBS_REGS)
+ if (event->attr.sample_regs_user & ~PEBS_GP_REGS)
flags &= ~(PERF_SAMPLE_REGS_USER | PERF_SAMPLE_REGS_INTR);
return flags;
}
diff --git a/arch/x86/events/perf_event.h b/arch/x86/events/perf_event.h
index acd72e669c04..b68ab65454ff 100644
--- a/arch/x86/events/perf_event.h
+++ b/arch/x86/events/perf_event.h
@@ -96,25 +96,25 @@ struct amd_nb {
PERF_SAMPLE_REGS_INTR | PERF_SAMPLE_REGS_USER | \
PERF_SAMPLE_PERIOD)

-#define PEBS_REGS \
- (PERF_REG_X86_AX | \
- PERF_REG_X86_BX | \
- PERF_REG_X86_CX | \
- PERF_REG_X86_DX | \
- PERF_REG_X86_DI | \
- PERF_REG_X86_SI | \
- PERF_REG_X86_SP | \
- PERF_REG_X86_BP | \
- PERF_REG_X86_IP | \
- PERF_REG_X86_FLAGS | \
- PERF_REG_X86_R8 | \
- PERF_REG_X86_R9 | \
- PERF_REG_X86_R10 | \
- PERF_REG_X86_R11 | \
- PERF_REG_X86_R12 | \
- PERF_REG_X86_R13 | \
- PERF_REG_X86_R14 | \
- PERF_REG_X86_R15)
+#define PEBS_GP_REGS \
+ ((1ULL << PERF_REG_X86_AX) | \
+ (1ULL << PERF_REG_X86_BX) | \
+ (1ULL << PERF_REG_X86_CX) | \
+ (1ULL << PERF_REG_X86_DX) | \
+ (1ULL << PERF_REG_X86_DI) | \
+ (1ULL << PERF_REG_X86_SI) | \
+ (1ULL << PERF_REG_X86_SP) | \
+ (1ULL << PERF_REG_X86_BP) | \
+ (1ULL << PERF_REG_X86_IP) | \
+ (1ULL << PERF_REG_X86_FLAGS) | \
+ (1ULL << PERF_REG_X86_R8) | \
+ (1ULL << PERF_REG_X86_R9) | \
+ (1ULL << PERF_REG_X86_R10) | \
+ (1ULL << PERF_REG_X86_R11) | \
+ (1ULL << PERF_REG_X86_R12) | \
+ (1ULL << PERF_REG_X86_R13) | \
+ (1ULL << PERF_REG_X86_R14) | \
+ (1ULL << PERF_REG_X86_R15))

/*
* Per register state.
diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c
index 01874d54f4fd..482383c2b184 100644
--- a/arch/x86/kernel/cpu/bugs.c
+++ b/arch/x86/kernel/cpu/bugs.c
@@ -275,7 +275,7 @@ static const struct {
const char *option;
enum spectre_v2_user_cmd cmd;
bool secure;
-} v2_user_options[] __initdata = {
+} v2_user_options[] __initconst = {
{ "auto", SPECTRE_V2_USER_CMD_AUTO, false },
{ "off", SPECTRE_V2_USER_CMD_NONE, false },
{ "on", SPECTRE_V2_USER_CMD_FORCE, true },
@@ -419,7 +419,7 @@ static const struct {
const char *option;
enum spectre_v2_mitigation_cmd cmd;
bool secure;
-} mitigation_options[] __initdata = {
+} mitigation_options[] __initconst = {
{ "off", SPECTRE_V2_CMD_NONE, false },
{ "on", SPECTRE_V2_CMD_FORCE, true },
{ "retpoline", SPECTRE_V2_CMD_RETPOLINE, false },
@@ -658,7 +658,7 @@ static const char * const ssb_strings[] = {
static const struct {
const char *option;
enum ssb_mitigation_cmd cmd;
-} ssb_mitigation_options[] __initdata = {
+} ssb_mitigation_options[] __initconst = {
{ "auto", SPEC_STORE_BYPASS_CMD_AUTO }, /* Platform decides */
{ "on", SPEC_STORE_BYPASS_CMD_ON }, /* Disable Speculative Store Bypass */
{ "off", SPEC_STORE_BYPASS_CMD_NONE }, /* Don't touch Speculative Store Bypass */
diff --git a/arch/x86/kernel/kprobes/core.c b/arch/x86/kernel/kprobes/core.c
index 4ba75afba527..f4b954ff5b89 100644
--- a/arch/x86/kernel/kprobes/core.c
+++ b/arch/x86/kernel/kprobes/core.c
@@ -569,6 +569,7 @@ void arch_prepare_kretprobe(struct kretprobe_instance *ri, struct pt_regs *regs)
unsigned long *sara = stack_addr(regs);

ri->ret_addr = (kprobe_opcode_t *) *sara;
+ ri->fp = sara;

/* Replace the return addr with trampoline addr */
*sara = (unsigned long) &kretprobe_trampoline;
@@ -748,26 +749,48 @@ asm(
NOKPROBE_SYMBOL(kretprobe_trampoline);
STACK_FRAME_NON_STANDARD(kretprobe_trampoline);

+static struct kprobe kretprobe_kprobe = {
+ .addr = (void *)kretprobe_trampoline,
+};
+
/*
* Called from kretprobe_trampoline
*/
static __used void *trampoline_handler(struct pt_regs *regs)
{
+ struct kprobe_ctlblk *kcb;
struct kretprobe_instance *ri = NULL;
struct hlist_head *head, empty_rp;
struct hlist_node *tmp;
unsigned long flags, orig_ret_address = 0;
unsigned long trampoline_address = (unsigned long)&kretprobe_trampoline;
kprobe_opcode_t *correct_ret_addr = NULL;
+ void *frame_pointer;
+ bool skipped = false;
+
+ preempt_disable();
+
+ /*
+ * Set a dummy kprobe for avoiding kretprobe recursion.
+ * Since kretprobe never run in kprobe handler, kprobe must not
+ * be running at this point.
+ */
+ kcb = get_kprobe_ctlblk();
+ __this_cpu_write(current_kprobe, &kretprobe_kprobe);
+ kcb->kprobe_status = KPROBE_HIT_ACTIVE;

INIT_HLIST_HEAD(&empty_rp);
kretprobe_hash_lock(current, &head, &flags);
/* fixup registers */
#ifdef CONFIG_X86_64
regs->cs = __KERNEL_CS;
+ /* On x86-64, we use pt_regs->sp for return address holder. */
+ frame_pointer = &regs->sp;
#else
regs->cs = __KERNEL_CS | get_kernel_rpl();
regs->gs = 0;
+ /* On x86-32, we use pt_regs->flags for return address holder. */
+ frame_pointer = &regs->flags;
#endif
regs->ip = trampoline_address;
regs->orig_ax = ~0UL;
@@ -789,8 +812,25 @@ static __used void *trampoline_handler(struct pt_regs *regs)
if (ri->task != current)
/* another task is sharing our hash bucket */
continue;
+ /*
+ * Return probes must be pushed on this hash list correct
+ * order (same as return order) so that it can be poped
+ * correctly. However, if we find it is pushed it incorrect
+ * order, this means we find a function which should not be
+ * probed, because the wrong order entry is pushed on the
+ * path of processing other kretprobe itself.
+ */
+ if (ri->fp != frame_pointer) {
+ if (!skipped)
+ pr_warn("kretprobe is stacked incorrectly. Trying to fixup.\n");
+ skipped = true;
+ continue;
+ }

orig_ret_address = (unsigned long)ri->ret_addr;
+ if (skipped)
+ pr_warn("%ps must be blacklisted because of incorrect kretprobe order\n",
+ ri->rp->kp.addr);

if (orig_ret_address != trampoline_address)
/*
@@ -808,14 +848,15 @@ static __used void *trampoline_handler(struct pt_regs *regs)
if (ri->task != current)
/* another task is sharing our hash bucket */
continue;
+ if (ri->fp != frame_pointer)
+ continue;

orig_ret_address = (unsigned long)ri->ret_addr;
if (ri->rp && ri->rp->handler) {
__this_cpu_write(current_kprobe, &ri->rp->kp);
- get_kprobe_ctlblk()->kprobe_status = KPROBE_HIT_ACTIVE;
ri->ret_addr = correct_ret_addr;
ri->rp->handler(ri, regs);
- __this_cpu_write(current_kprobe, NULL);
+ __this_cpu_write(current_kprobe, &kretprobe_kprobe);
}

recycle_rp_inst(ri, &empty_rp);
@@ -831,6 +872,9 @@ static __used void *trampoline_handler(struct pt_regs *regs)

kretprobe_hash_unlock(current, &flags);

+ __this_cpu_write(current_kprobe, NULL);
+ preempt_enable();
+
hlist_for_each_entry_safe(ri, tmp, &empty_rp, hlist) {
hlist_del(&ri->hlist);
kfree(ri);
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
index 90ae0ca51083..9db049f06f2f 100644
--- a/arch/x86/kernel/process.c
+++ b/arch/x86/kernel/process.c
@@ -414,6 +414,8 @@ static __always_inline void __speculation_ctrl_update(unsigned long tifp,
u64 msr = x86_spec_ctrl_base;
bool updmsr = false;

+ lockdep_assert_irqs_disabled();
+
/*
* If TIF_SSBD is different, select the proper mitigation
* method. Note that if SSBD mitigation is disabled or permanentely
@@ -465,10 +467,12 @@ static unsigned long speculation_ctrl_update_tif(struct task_struct *tsk)

void speculation_ctrl_update(unsigned long tif)
{
+ unsigned long flags;
+
/* Forced update. Make sure all relevant TIF flags are different */
- preempt_disable();
+ local_irq_save(flags);
__speculation_ctrl_update(~tif, tif);
- preempt_enable();
+ local_irq_restore(flags);
}

/* Called from seccomp/prctl update */
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index c338984c850d..81be2165821f 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -2575,15 +2575,13 @@ static int em_rsm(struct x86_emulate_ctxt *ctxt)
* CR0/CR3/CR4/EFER. It's all a bit more complicated if the vCPU
* supports long mode.
*/
- cr4 = ctxt->ops->get_cr(ctxt, 4);
if (emulator_has_longmode(ctxt)) {
struct desc_struct cs_desc;

/* Zero CR4.PCIDE before CR0.PG. */
- if (cr4 & X86_CR4_PCIDE) {
+ cr4 = ctxt->ops->get_cr(ctxt, 4);
+ if (cr4 & X86_CR4_PCIDE)
ctxt->ops->set_cr(ctxt, 4, cr4 & ~X86_CR4_PCIDE);
- cr4 &= ~X86_CR4_PCIDE;
- }

/* A 32-bit code segment is required to clear EFER.LMA. */
memset(&cs_desc, 0, sizeof(cs_desc));
@@ -2597,13 +2595,16 @@ static int em_rsm(struct x86_emulate_ctxt *ctxt)
if (cr0 & X86_CR0_PE)
ctxt->ops->set_cr(ctxt, 0, cr0 & ~(X86_CR0_PG | X86_CR0_PE));

- /* Now clear CR4.PAE (which must be done before clearing EFER.LME). */
- if (cr4 & X86_CR4_PAE)
- ctxt->ops->set_cr(ctxt, 4, cr4 & ~X86_CR4_PAE);
+ if (emulator_has_longmode(ctxt)) {
+ /* Clear CR4.PAE before clearing EFER.LME. */
+ cr4 = ctxt->ops->get_cr(ctxt, 4);
+ if (cr4 & X86_CR4_PAE)
+ ctxt->ops->set_cr(ctxt, 4, cr4 & ~X86_CR4_PAE);

- /* And finally go back to 32-bit mode. */
- efer = 0;
- ctxt->ops->set_msr(ctxt, MSR_EFER, efer);
+ /* And finally go back to 32-bit mode. */
+ efer = 0;
+ ctxt->ops->set_msr(ctxt, MSR_EFER, efer);
+ }

smbase = ctxt->ops->get_smbase(ctxt);

diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index a9b8e38d78ad..516c1de03d47 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -2687,6 +2687,7 @@ static int npf_interception(struct vcpu_svm *svm)
static int db_interception(struct vcpu_svm *svm)
{
struct kvm_run *kvm_run = svm->vcpu.run;
+ struct kvm_vcpu *vcpu = &svm->vcpu;

if (!(svm->vcpu.guest_debug &
(KVM_GUESTDBG_SINGLESTEP | KVM_GUESTDBG_USE_HW_BP)) &&
@@ -2697,6 +2698,8 @@ static int db_interception(struct vcpu_svm *svm)

if (svm->nmi_singlestep) {
disable_nmi_singlestep(svm);
+ /* Make sure we check for pending NMIs upon entry */
+ kvm_make_request(KVM_REQ_EVENT, vcpu);
}

if (svm->vcpu.guest_debug &
@@ -4512,14 +4515,25 @@ static int avic_incomplete_ipi_interception(struct vcpu_svm *svm)
kvm_lapic_reg_write(apic, APIC_ICR, icrl);
break;
case AVIC_IPI_FAILURE_TARGET_NOT_RUNNING: {
+ int i;
+ struct kvm_vcpu *vcpu;
+ struct kvm *kvm = svm->vcpu.kvm;
struct kvm_lapic *apic = svm->vcpu.arch.apic;

/*
- * Update ICR high and low, then emulate sending IPI,
- * which is handled when writing APIC_ICR.
+ * At this point, we expect that the AVIC HW has already
+ * set the appropriate IRR bits on the valid target
+ * vcpus. So, we just need to kick the appropriate vcpu.
*/
- kvm_lapic_reg_write(apic, APIC_ICR2, icrh);
- kvm_lapic_reg_write(apic, APIC_ICR, icrl);
+ kvm_for_each_vcpu(i, vcpu, kvm) {
+ bool m = kvm_apic_match_dest(vcpu, apic,
+ icrl & KVM_APIC_SHORT_MASK,
+ GET_APIC_DEST_FIELD(icrh),
+ icrl & KVM_APIC_DEST_MASK);
+
+ if (m && !avic_vcpu_is_running(vcpu))
+ kvm_vcpu_wake_up(vcpu);
+ }
break;
}
case AVIC_IPI_FAILURE_INVALID_TARGET:
@@ -5620,6 +5634,7 @@ static void svm_vcpu_run(struct kvm_vcpu *vcpu)
svm->vmcb->save.cr2 = vcpu->arch.cr2;

clgi();
+ kvm_load_guest_xcr0(vcpu);

/*
* If this vCPU has touched SPEC_CTRL, restore the guest's value if
@@ -5765,6 +5780,7 @@ static void svm_vcpu_run(struct kvm_vcpu *vcpu)
if (unlikely(svm->vmcb->control.exit_code == SVM_EXIT_NMI))
kvm_before_interrupt(&svm->vcpu);

+ kvm_put_guest_xcr0(vcpu);
stgi();

/* Any pending NMI will happen here */
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index a0a770816429..34499081022c 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -6548,6 +6548,8 @@ static void vmx_vcpu_run(struct kvm_vcpu *vcpu)
if (vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP)
vmx_set_interrupt_shadow(vcpu, 0);

+ kvm_load_guest_xcr0(vcpu);
+
if (static_cpu_has(X86_FEATURE_PKU) &&
kvm_read_cr4_bits(vcpu, X86_CR4_PKE) &&
vcpu->arch.pkru != vmx->host_pkru)
@@ -6635,6 +6637,8 @@ static void vmx_vcpu_run(struct kvm_vcpu *vcpu)
__write_pkru(vmx->host_pkru);
}

+ kvm_put_guest_xcr0(vcpu);
+
vmx->nested.nested_run_pending = 0;
vmx->idt_vectoring_info = 0;

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 7ee802a92bc8..2db58067bb59 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -800,7 +800,7 @@ void kvm_lmsw(struct kvm_vcpu *vcpu, unsigned long msw)
}
EXPORT_SYMBOL_GPL(kvm_lmsw);

-static void kvm_load_guest_xcr0(struct kvm_vcpu *vcpu)
+void kvm_load_guest_xcr0(struct kvm_vcpu *vcpu)
{
if (kvm_read_cr4_bits(vcpu, X86_CR4_OSXSAVE) &&
!vcpu->guest_xcr0_loaded) {
@@ -810,8 +810,9 @@ static void kvm_load_guest_xcr0(struct kvm_vcpu *vcpu)
vcpu->guest_xcr0_loaded = 1;
}
}
+EXPORT_SYMBOL_GPL(kvm_load_guest_xcr0);

-static void kvm_put_guest_xcr0(struct kvm_vcpu *vcpu)
+void kvm_put_guest_xcr0(struct kvm_vcpu *vcpu)
{
if (vcpu->guest_xcr0_loaded) {
if (vcpu->arch.xcr0 != host_xcr0)
@@ -819,6 +820,7 @@ static void kvm_put_guest_xcr0(struct kvm_vcpu *vcpu)
vcpu->guest_xcr0_loaded = 0;
}
}
+EXPORT_SYMBOL_GPL(kvm_put_guest_xcr0);

static int __kvm_set_xcr(struct kvm_vcpu *vcpu, u32 index, u64 xcr)
{
@@ -7856,8 +7858,6 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu)
goto cancel_injection;
}

- kvm_load_guest_xcr0(vcpu);
-
if (req_immediate_exit) {
kvm_make_request(KVM_REQ_EVENT, vcpu);
kvm_x86_ops->request_immediate_exit(vcpu);
@@ -7910,8 +7910,6 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu)
vcpu->mode = OUTSIDE_GUEST_MODE;
smp_wmb();

- kvm_put_guest_xcr0(vcpu);
-
kvm_before_interrupt(vcpu);
kvm_x86_ops->handle_external_intr(vcpu);
kvm_after_interrupt(vcpu);
diff --git a/arch/x86/kvm/x86.h b/arch/x86/kvm/x86.h
index 20ede17202bf..de3d46769ee3 100644
--- a/arch/x86/kvm/x86.h
+++ b/arch/x86/kvm/x86.h
@@ -347,4 +347,6 @@ static inline void kvm_after_interrupt(struct kvm_vcpu *vcpu)
__this_cpu_write(current_vcpu, NULL);
}

+void kvm_load_guest_xcr0(struct kvm_vcpu *vcpu);
+void kvm_put_guest_xcr0(struct kvm_vcpu *vcpu);
#endif
diff --git a/crypto/testmgr.h b/crypto/testmgr.h
index ca8e8ebef309..db496aa360a3 100644
--- a/crypto/testmgr.h
+++ b/crypto/testmgr.h
@@ -5706,7 +5706,49 @@ static const struct hash_testvec poly1305_tv_template[] = {
.psize = 80,
.digest = "\x13\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00",
- },
+ }, { /* Regression test for overflow in AVX2 implementation */
+ .plaintext = "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff",
+ .psize = 300,
+ .digest = "\xfb\x5e\x96\xd8\x61\xd5\xc7\xc8"
+ "\x78\xe5\x87\xcc\x2d\x5a\x22\xe1",
+ }
};

/* NHPoly1305 test vectors from https://github.com/google/adiantum */
diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c
index f75f8f870ce3..4be4dc3e8aa6 100644
--- a/drivers/acpi/nfit/core.c
+++ b/drivers/acpi/nfit/core.c
@@ -1319,19 +1319,30 @@ static ssize_t scrub_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct nvdimm_bus_descriptor *nd_desc;
+ struct acpi_nfit_desc *acpi_desc;
ssize_t rc = -ENXIO;
+ bool busy;

device_lock(dev);
nd_desc = dev_get_drvdata(dev);
- if (nd_desc) {
- struct acpi_nfit_desc *acpi_desc = to_acpi_desc(nd_desc);
+ if (!nd_desc) {
+ device_unlock(dev);
+ return rc;
+ }
+ acpi_desc = to_acpi_desc(nd_desc);

- mutex_lock(&acpi_desc->init_mutex);
- rc = sprintf(buf, "%d%s", acpi_desc->scrub_count,
- acpi_desc->scrub_busy
- && !acpi_desc->cancel ? "+\n" : "\n");
- mutex_unlock(&acpi_desc->init_mutex);
+ mutex_lock(&acpi_desc->init_mutex);
+ busy = test_bit(ARS_BUSY, &acpi_desc->scrub_flags)
+ && !test_bit(ARS_CANCEL, &acpi_desc->scrub_flags);
+ rc = sprintf(buf, "%d%s", acpi_desc->scrub_count, busy ? "+\n" : "\n");
+ /* Allow an admin to poll the busy state at a higher rate */
+ if (busy && capable(CAP_SYS_RAWIO) && !test_and_set_bit(ARS_POLL,
+ &acpi_desc->scrub_flags)) {
+ acpi_desc->scrub_tmo = 1;
+ mod_delayed_work(nfit_wq, &acpi_desc->dwork, HZ);
}
+
+ mutex_unlock(&acpi_desc->init_mutex);
device_unlock(dev);
return rc;
}
@@ -2650,7 +2661,10 @@ static int ars_start(struct acpi_nfit_desc *acpi_desc,

if (rc < 0)
return rc;
- return cmd_rc;
+ if (cmd_rc < 0)
+ return cmd_rc;
+ set_bit(ARS_VALID, &acpi_desc->scrub_flags);
+ return 0;
}

static int ars_continue(struct acpi_nfit_desc *acpi_desc)
@@ -2660,11 +2674,11 @@ static int ars_continue(struct acpi_nfit_desc *acpi_desc)
struct nvdimm_bus_descriptor *nd_desc = &acpi_desc->nd_desc;
struct nd_cmd_ars_status *ars_status = acpi_desc->ars_status;

- memset(&ars_start, 0, sizeof(ars_start));
- ars_start.address = ars_status->restart_address;
- ars_start.length = ars_status->restart_length;
- ars_start.type = ars_status->type;
- ars_start.flags = acpi_desc->ars_start_flags;
+ ars_start = (struct nd_cmd_ars_start) {
+ .address = ars_status->restart_address,
+ .length = ars_status->restart_length,
+ .type = ars_status->type,
+ };
rc = nd_desc->ndctl(nd_desc, NULL, ND_CMD_ARS_START, &ars_start,
sizeof(ars_start), &cmd_rc);
if (rc < 0)
@@ -2743,6 +2757,17 @@ static int ars_status_process_records(struct acpi_nfit_desc *acpi_desc)
*/
if (ars_status->out_length < 44)
return 0;
+
+ /*
+ * Ignore potentially stale results that are only refreshed
+ * after a start-ARS event.
+ */
+ if (!test_and_clear_bit(ARS_VALID, &acpi_desc->scrub_flags)) {
+ dev_dbg(acpi_desc->dev, "skip %d stale records\n",
+ ars_status->num_records);
+ return 0;
+ }
+
for (i = 0; i < ars_status->num_records; i++) {
/* only process full records */
if (ars_status->out_length
@@ -3081,7 +3106,7 @@ static unsigned int __acpi_nfit_scrub(struct acpi_nfit_desc *acpi_desc,

lockdep_assert_held(&acpi_desc->init_mutex);

- if (acpi_desc->cancel)
+ if (test_bit(ARS_CANCEL, &acpi_desc->scrub_flags))
return 0;

if (query_rc == -EBUSY) {
@@ -3155,7 +3180,7 @@ static void __sched_ars(struct acpi_nfit_desc *acpi_desc, unsigned int tmo)
{
lockdep_assert_held(&acpi_desc->init_mutex);

- acpi_desc->scrub_busy = 1;
+ set_bit(ARS_BUSY, &acpi_desc->scrub_flags);
/* note this should only be set from within the workqueue */
if (tmo)
acpi_desc->scrub_tmo = tmo;
@@ -3171,7 +3196,7 @@ static void notify_ars_done(struct acpi_nfit_desc *acpi_desc)
{
lockdep_assert_held(&acpi_desc->init_mutex);

- acpi_desc->scrub_busy = 0;
+ clear_bit(ARS_BUSY, &acpi_desc->scrub_flags);
acpi_desc->scrub_count++;
if (acpi_desc->scrub_count_state)
sysfs_notify_dirent(acpi_desc->scrub_count_state);
@@ -3192,6 +3217,7 @@ static void acpi_nfit_scrub(struct work_struct *work)
else
notify_ars_done(acpi_desc);
memset(acpi_desc->ars_status, 0, acpi_desc->max_ars);
+ clear_bit(ARS_POLL, &acpi_desc->scrub_flags);
mutex_unlock(&acpi_desc->init_mutex);
}

@@ -3226,6 +3252,7 @@ static int acpi_nfit_register_regions(struct acpi_nfit_desc *acpi_desc)
struct nfit_spa *nfit_spa;
int rc;

+ set_bit(ARS_VALID, &acpi_desc->scrub_flags);
list_for_each_entry(nfit_spa, &acpi_desc->spas, list) {
switch (nfit_spa_type(nfit_spa->spa)) {
case NFIT_SPA_VOLATILE:
@@ -3460,7 +3487,7 @@ int acpi_nfit_ars_rescan(struct acpi_nfit_desc *acpi_desc,
struct nfit_spa *nfit_spa;

mutex_lock(&acpi_desc->init_mutex);
- if (acpi_desc->cancel) {
+ if (test_bit(ARS_CANCEL, &acpi_desc->scrub_flags)) {
mutex_unlock(&acpi_desc->init_mutex);
return 0;
}
@@ -3539,7 +3566,7 @@ void acpi_nfit_shutdown(void *data)
mutex_unlock(&acpi_desc_lock);

mutex_lock(&acpi_desc->init_mutex);
- acpi_desc->cancel = 1;
+ set_bit(ARS_CANCEL, &acpi_desc->scrub_flags);
cancel_delayed_work_sync(&acpi_desc->dwork);
mutex_unlock(&acpi_desc->init_mutex);

diff --git a/drivers/acpi/nfit/nfit.h b/drivers/acpi/nfit/nfit.h
index 33691aecfcee..0cbe5009eb2c 100644
--- a/drivers/acpi/nfit/nfit.h
+++ b/drivers/acpi/nfit/nfit.h
@@ -210,6 +210,13 @@ struct nfit_mem {
int family;
};

+enum scrub_flags {
+ ARS_BUSY,
+ ARS_CANCEL,
+ ARS_VALID,
+ ARS_POLL,
+};
+
struct acpi_nfit_desc {
struct nvdimm_bus_descriptor nd_desc;
struct acpi_table_header acpi_header;
@@ -223,7 +230,6 @@ struct acpi_nfit_desc {
struct list_head idts;
struct nvdimm_bus *nvdimm_bus;
struct device *dev;
- u8 ars_start_flags;
struct nd_cmd_ars_status *ars_status;
struct nfit_spa *scrub_spa;
struct delayed_work dwork;
@@ -232,8 +238,7 @@ struct acpi_nfit_desc {
unsigned int max_ars;
unsigned int scrub_count;
unsigned int scrub_mode;
- unsigned int scrub_busy:1;
- unsigned int cancel:1;
+ unsigned long scrub_flags;
unsigned long dimm_cmd_force_en;
unsigned long bus_cmd_force_en;
unsigned long bus_nfit_cmd_force_en;
diff --git a/drivers/base/memory.c b/drivers/base/memory.c
index 048cbf7d5233..23125f276ff1 100644
--- a/drivers/base/memory.c
+++ b/drivers/base/memory.c
@@ -505,7 +505,7 @@ static ssize_t probe_store(struct device *dev, struct device_attribute *attr,

ret = lock_device_hotplug_sysfs();
if (ret)
- goto out;
+ return ret;

nid = memory_add_physaddr_to_nid(phys_addr);
ret = __add_memory(nid, phys_addr,
diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c
index c518659b4d9f..ff9dd9adf803 100644
--- a/drivers/char/ipmi/ipmi_msghandler.c
+++ b/drivers/char/ipmi/ipmi_msghandler.c
@@ -214,6 +214,9 @@ struct ipmi_user {

/* Does this interface receive IPMI events? */
bool gets_events;
+
+ /* Free must run in process context for RCU cleanup. */
+ struct work_struct remove_work;
};

static struct ipmi_user *acquire_ipmi_user(struct ipmi_user *user, int *index)
@@ -1079,6 +1082,15 @@ static int intf_err_seq(struct ipmi_smi *intf,
}

+static void free_user_work(struct work_struct *work)
+{
+ struct ipmi_user *user = container_of(work, struct ipmi_user,
+ remove_work);
+
+ cleanup_srcu_struct(&user->release_barrier);
+ kfree(user);
+}
+
int ipmi_create_user(unsigned int if_num,
const struct ipmi_user_hndl *handler,
void *handler_data,
@@ -1122,6 +1134,8 @@ int ipmi_create_user(unsigned int if_num,
goto out_kfree;

found:
+ INIT_WORK(&new_user->remove_work, free_user_work);
+
rv = init_srcu_struct(&new_user->release_barrier);
if (rv)
goto out_kfree;
@@ -1184,8 +1198,9 @@ EXPORT_SYMBOL(ipmi_get_smi_info);
static void free_user(struct kref *ref)
{
struct ipmi_user *user = container_of(ref, struct ipmi_user, refcount);
- cleanup_srcu_struct(&user->release_barrier);
- kfree(user);
+
+ /* SRCU cleanup must happen in task context. */
+ schedule_work(&user->remove_work);
}

static void _ipmi_destroy_user(struct ipmi_user *user)
diff --git a/drivers/char/tpm/eventlog/tpm2.c b/drivers/char/tpm/eventlog/tpm2.c
index 1b8fa9de2cac..41b9f6c92da7 100644
--- a/drivers/char/tpm/eventlog/tpm2.c
+++ b/drivers/char/tpm/eventlog/tpm2.c
@@ -37,8 +37,8 @@
*
* Returns size of the event. If it is an invalid event, returns 0.
*/
-static int calc_tpm2_event_size(struct tcg_pcr_event2 *event,
- struct tcg_pcr_event *event_header)
+static size_t calc_tpm2_event_size(struct tcg_pcr_event2 *event,
+ struct tcg_pcr_event *event_header)
{
struct tcg_efi_specid_event *efispecid;
struct tcg_event_field *event_field;
diff --git a/drivers/char/tpm/tpm-dev-common.c b/drivers/char/tpm/tpm-dev-common.c
index 5eecad233ea1..744b0237300a 100644
--- a/drivers/char/tpm/tpm-dev-common.c
+++ b/drivers/char/tpm/tpm-dev-common.c
@@ -203,12 +203,19 @@ __poll_t tpm_common_poll(struct file *file, poll_table *wait)
__poll_t mask = 0;

poll_wait(file, &priv->async_wait, wait);
+ mutex_lock(&priv->buffer_mutex);

- if (!priv->response_read || priv->response_length)
+ /*
+ * The response_length indicates if there is still response
+ * (or part of it) to be consumed. Partial reads decrease it
+ * by the number of bytes read, and write resets it the zero.
+ */
+ if (priv->response_length)
mask = EPOLLIN | EPOLLRDNORM;
else
mask = EPOLLOUT | EPOLLWRNORM;

+ mutex_unlock(&priv->buffer_mutex);
return mask;
}

diff --git a/drivers/char/tpm/tpm_i2c_atmel.c b/drivers/char/tpm/tpm_i2c_atmel.c
index 32a8e27c5382..cc4e642d3180 100644
--- a/drivers/char/tpm/tpm_i2c_atmel.c
+++ b/drivers/char/tpm/tpm_i2c_atmel.c
@@ -69,6 +69,10 @@ static int i2c_atmel_send(struct tpm_chip *chip, u8 *buf, size_t len)
if (status < 0)
return status;

+ /* The upper layer does not support incomplete sends. */
+ if (status != len)
+ return -E2BIG;
+
return 0;
}

diff --git a/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c b/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c
index d0d966d6080a..1696644ec022 100644
--- a/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c
@@ -182,6 +182,7 @@ static void mmhub_v1_0_init_cache_regs(struct amdgpu_device *adev)
tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3,
L2_CACHE_BIGK_FRAGMENT_SIZE, 6);
}
+ WREG32_SOC15(MMHUB, 0, mmVM_L2_CNTL3, tmp);

tmp = mmVM_L2_CNTL4_DEFAULT;
tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_PDE_REQUEST_PHYSICAL, 0);
diff --git a/drivers/gpu/drm/ttm/ttm_page_alloc.c b/drivers/gpu/drm/ttm/ttm_page_alloc.c
index f841accc2c00..f77c81db161b 100644
--- a/drivers/gpu/drm/ttm/ttm_page_alloc.c
+++ b/drivers/gpu/drm/ttm/ttm_page_alloc.c
@@ -730,7 +730,8 @@ static void ttm_put_pages(struct page **pages, unsigned npages, int flags,
}

#ifdef CONFIG_TRANSPARENT_HUGEPAGE
- if (!(flags & TTM_PAGE_FLAG_DMA32)) {
+ if (!(flags & TTM_PAGE_FLAG_DMA32) &&
+ (npages - i) >= HPAGE_PMD_NR) {
for (j = 0; j < HPAGE_PMD_NR; ++j)
if (p++ != pages[i + j])
break;
@@ -759,7 +760,7 @@ static void ttm_put_pages(struct page **pages, unsigned npages, int flags,
unsigned max_size, n2free;

spin_lock_irqsave(&huge->lock, irq_flags);
- while (i < npages) {
+ while ((npages - i) >= HPAGE_PMD_NR) {
struct page *p = pages[i];
unsigned j;

diff --git a/drivers/i3c/master.c b/drivers/i3c/master.c
index 2dc628d4f1ae..1412abcff010 100644
--- a/drivers/i3c/master.c
+++ b/drivers/i3c/master.c
@@ -1980,7 +1980,6 @@ of_i3c_master_add_i3c_boardinfo(struct i3c_master_controller *master,
{
struct i3c_dev_boardinfo *boardinfo;
struct device *dev = &master->dev;
- struct i3c_device_info info = { };
enum i3c_addr_slot_status addrstatus;
u32 init_dyn_addr = 0;

@@ -2012,8 +2011,8 @@ of_i3c_master_add_i3c_boardinfo(struct i3c_master_controller *master,

boardinfo->pid = ((u64)reg[1] << 32) | reg[2];

- if ((info.pid & GENMASK_ULL(63, 48)) ||
- I3C_PID_RND_LOWER_32BITS(info.pid))
+ if ((boardinfo->pid & GENMASK_ULL(63, 48)) ||
+ I3C_PID_RND_LOWER_32BITS(boardinfo->pid))
return -EINVAL;

boardinfo->init_dyn_addr = init_dyn_addr;
diff --git a/drivers/i3c/master/dw-i3c-master.c b/drivers/i3c/master/dw-i3c-master.c
index bb03079fbade..ec385fbfef4c 100644
--- a/drivers/i3c/master/dw-i3c-master.c
+++ b/drivers/i3c/master/dw-i3c-master.c
@@ -300,7 +300,7 @@ to_dw_i3c_master(struct i3c_master_controller *master)

static void dw_i3c_master_disable(struct dw_i3c_master *master)
{
- writel(readl(master->regs + DEVICE_CTRL) & DEV_CTRL_ENABLE,
+ writel(readl(master->regs + DEVICE_CTRL) & ~DEV_CTRL_ENABLE,
master->regs + DEVICE_CTRL);
}

diff --git a/drivers/iio/accel/kxcjk-1013.c b/drivers/iio/accel/kxcjk-1013.c
index 7096e577b23f..50f3ff386bea 100644
--- a/drivers/iio/accel/kxcjk-1013.c
+++ b/drivers/iio/accel/kxcjk-1013.c
@@ -1437,6 +1437,8 @@ static int kxcjk1013_resume(struct device *dev)

mutex_lock(&data->mutex);
ret = kxcjk1013_set_mode(data, OPERATION);
+ if (ret == 0)
+ ret = kxcjk1013_set_range(data, data->range);
mutex_unlock(&data->mutex);

return ret;
diff --git a/drivers/iio/adc/ad_sigma_delta.c b/drivers/iio/adc/ad_sigma_delta.c
index ff5f2da2e1b1..54d9978b2740 100644
--- a/drivers/iio/adc/ad_sigma_delta.c
+++ b/drivers/iio/adc/ad_sigma_delta.c
@@ -121,6 +121,7 @@ static int ad_sd_read_reg_raw(struct ad_sigma_delta *sigma_delta,
if (sigma_delta->info->has_registers) {
data[0] = reg << sigma_delta->info->addr_shift;
data[0] |= sigma_delta->info->read_mask;
+ data[0] |= sigma_delta->comm;
spi_message_add_tail(&t[0], &m);
}
spi_message_add_tail(&t[1], &m);
diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c
index 75d2f73582a3..596841a3c4db 100644
--- a/drivers/iio/adc/at91_adc.c
+++ b/drivers/iio/adc/at91_adc.c
@@ -704,23 +704,29 @@ static int at91_adc_read_raw(struct iio_dev *idev,
ret = wait_event_interruptible_timeout(st->wq_data_avail,
st->done,
msecs_to_jiffies(1000));
- if (ret == 0)
- ret = -ETIMEDOUT;
- if (ret < 0) {
- mutex_unlock(&st->lock);
- return ret;
- }
-
- *val = st->last_value;

+ /* Disable interrupts, regardless if adc conversion was
+ * successful or not
+ */
at91_adc_writel(st, AT91_ADC_CHDR,
AT91_ADC_CH(chan->channel));
at91_adc_writel(st, AT91_ADC_IDR, BIT(chan->channel));

- st->last_value = 0;
- st->done = false;
+ if (ret > 0) {
+ /* a valid conversion took place */
+ *val = st->last_value;
+ st->last_value = 0;
+ st->done = false;
+ ret = IIO_VAL_INT;
+ } else if (ret == 0) {
+ /* conversion timeout */
+ dev_err(&idev->dev, "ADC Channel %d timeout.\n",
+ chan->channel);
+ ret = -ETIMEDOUT;
+ }
+
mutex_unlock(&st->lock);
- return IIO_VAL_INT;
+ return ret;

case IIO_CHAN_INFO_SCALE:
*val = st->vref_mv;
diff --git a/drivers/iio/chemical/bme680.h b/drivers/iio/chemical/bme680.h
index 0ae89b87e2d6..4edc5d21cb9f 100644
--- a/drivers/iio/chemical/bme680.h
+++ b/drivers/iio/chemical/bme680.h
@@ -2,11 +2,9 @@
#ifndef BME680_H_
#define BME680_H_

-#define BME680_REG_CHIP_I2C_ID 0xD0
-#define BME680_REG_CHIP_SPI_ID 0x50
+#define BME680_REG_CHIP_ID 0xD0
#define BME680_CHIP_ID_VAL 0x61
-#define BME680_REG_SOFT_RESET_I2C 0xE0
-#define BME680_REG_SOFT_RESET_SPI 0x60
+#define BME680_REG_SOFT_RESET 0xE0
#define BME680_CMD_SOFTRESET 0xB6
#define BME680_REG_STATUS 0x73
#define BME680_SPI_MEM_PAGE_BIT BIT(4)
diff --git a/drivers/iio/chemical/bme680_core.c b/drivers/iio/chemical/bme680_core.c
index 70c1fe4366f4..ccde4c65ff93 100644
--- a/drivers/iio/chemical/bme680_core.c
+++ b/drivers/iio/chemical/bme680_core.c
@@ -63,9 +63,23 @@ struct bme680_data {
s32 t_fine;
};

+static const struct regmap_range bme680_volatile_ranges[] = {
+ regmap_reg_range(BME680_REG_MEAS_STAT_0, BME680_REG_GAS_R_LSB),
+ regmap_reg_range(BME680_REG_STATUS, BME680_REG_STATUS),
+ regmap_reg_range(BME680_T2_LSB_REG, BME680_GH3_REG),
+};
+
+static const struct regmap_access_table bme680_volatile_table = {
+ .yes_ranges = bme680_volatile_ranges,
+ .n_yes_ranges = ARRAY_SIZE(bme680_volatile_ranges),
+};
+
const struct regmap_config bme680_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
+ .max_register = 0xef,
+ .volatile_table = &bme680_volatile_table,
+ .cache_type = REGCACHE_RBTREE,
};
EXPORT_SYMBOL(bme680_regmap_config);

@@ -316,6 +330,10 @@ static s16 bme680_compensate_temp(struct bme680_data *data,
s64 var1, var2, var3;
s16 calc_temp;

+ /* If the calibration is invalid, attempt to reload it */
+ if (!calib->par_t2)
+ bme680_read_calib(data, calib);
+
var1 = (adc_temp >> 3) - (calib->par_t1 << 1);
var2 = (var1 * calib->par_t2) >> 11;
var3 = ((var1 >> 1) * (var1 >> 1)) >> 12;
@@ -583,8 +601,7 @@ static int bme680_gas_config(struct bme680_data *data)
return ret;
}

-static int bme680_read_temp(struct bme680_data *data,
- int *val, int *val2)
+static int bme680_read_temp(struct bme680_data *data, int *val)
{
struct device *dev = regmap_get_device(data->regmap);
int ret;
@@ -617,10 +634,9 @@ static int bme680_read_temp(struct bme680_data *data,
* compensate_press/compensate_humid to get compensated
* pressure/humidity readings.
*/
- if (val && val2) {
- *val = comp_temp;
- *val2 = 100;
- return IIO_VAL_FRACTIONAL;
+ if (val) {
+ *val = comp_temp * 10; /* Centidegrees to millidegrees */
+ return IIO_VAL_INT;
}

return ret;
@@ -635,7 +651,7 @@ static int bme680_read_press(struct bme680_data *data,
s32 adc_press;

/* Read and compensate temperature to get a reading of t_fine */
- ret = bme680_read_temp(data, NULL, NULL);
+ ret = bme680_read_temp(data, NULL);
if (ret < 0)
return ret;

@@ -668,7 +684,7 @@ static int bme680_read_humid(struct bme680_data *data,
u32 comp_humidity;

/* Read and compensate temperature to get a reading of t_fine */
- ret = bme680_read_temp(data, NULL, NULL);
+ ret = bme680_read_temp(data, NULL);
if (ret < 0)
return ret;

@@ -761,7 +777,7 @@ static int bme680_read_raw(struct iio_dev *indio_dev,
case IIO_CHAN_INFO_PROCESSED:
switch (chan->type) {
case IIO_TEMP:
- return bme680_read_temp(data, val, val2);
+ return bme680_read_temp(data, val);
case IIO_PRESSURE:
return bme680_read_press(data, val, val2);
case IIO_HUMIDITYRELATIVE:
@@ -867,8 +883,28 @@ int bme680_core_probe(struct device *dev, struct regmap *regmap,
{
struct iio_dev *indio_dev;
struct bme680_data *data;
+ unsigned int val;
int ret;

+ ret = regmap_write(regmap, BME680_REG_SOFT_RESET,
+ BME680_CMD_SOFTRESET);
+ if (ret < 0) {
+ dev_err(dev, "Failed to reset chip\n");
+ return ret;
+ }
+
+ ret = regmap_read(regmap, BME680_REG_CHIP_ID, &val);
+ if (ret < 0) {
+ dev_err(dev, "Error reading chip ID\n");
+ return ret;
+ }
+
+ if (val != BME680_CHIP_ID_VAL) {
+ dev_err(dev, "Wrong chip ID, got %x expected %x\n",
+ val, BME680_CHIP_ID_VAL);
+ return -ENODEV;
+ }
+
indio_dev = devm_iio_device_alloc(dev, sizeof(*data));
if (!indio_dev)
return -ENOMEM;
diff --git a/drivers/iio/chemical/bme680_i2c.c b/drivers/iio/chemical/bme680_i2c.c
index 06d4be539d2e..cfc4449edf1b 100644
--- a/drivers/iio/chemical/bme680_i2c.c
+++ b/drivers/iio/chemical/bme680_i2c.c
@@ -23,8 +23,6 @@ static int bme680_i2c_probe(struct i2c_client *client,
{
struct regmap *regmap;
const char *name = NULL;
- unsigned int val;
- int ret;

regmap = devm_regmap_init_i2c(client, &bme680_regmap_config);
if (IS_ERR(regmap)) {
@@ -33,25 +31,6 @@ static int bme680_i2c_probe(struct i2c_client *client,
return PTR_ERR(regmap);
}

- ret = regmap_write(regmap, BME680_REG_SOFT_RESET_I2C,
- BME680_CMD_SOFTRESET);
- if (ret < 0) {
- dev_err(&client->dev, "Failed to reset chip\n");
- return ret;
- }
-
- ret = regmap_read(regmap, BME680_REG_CHIP_I2C_ID, &val);
- if (ret < 0) {
- dev_err(&client->dev, "Error reading I2C chip ID\n");
- return ret;
- }
-
- if (val != BME680_CHIP_ID_VAL) {
- dev_err(&client->dev, "Wrong chip ID, got %x expected %x\n",
- val, BME680_CHIP_ID_VAL);
- return -ENODEV;
- }
-
if (id)
name = id->name;

diff --git a/drivers/iio/chemical/bme680_spi.c b/drivers/iio/chemical/bme680_spi.c
index c9fb05e8d0b9..881778e55d38 100644
--- a/drivers/iio/chemical/bme680_spi.c
+++ b/drivers/iio/chemical/bme680_spi.c
@@ -11,28 +11,93 @@

#include "bme680.h"

+struct bme680_spi_bus_context {
+ struct spi_device *spi;
+ u8 current_page;
+};
+
+/*
+ * In SPI mode there are only 7 address bits, a "page" register determines
+ * which part of the 8-bit range is active. This function looks at the address
+ * and writes the page selection bit if needed
+ */
+static int bme680_regmap_spi_select_page(
+ struct bme680_spi_bus_context *ctx, u8 reg)
+{
+ struct spi_device *spi = ctx->spi;
+ int ret;
+ u8 buf[2];
+ u8 page = (reg & 0x80) ? 0 : 1; /* Page "1" is low range */
+
+ if (page == ctx->current_page)
+ return 0;
+
+ /*
+ * Data sheet claims we're only allowed to change bit 4, so we must do
+ * a read-modify-write on each and every page select
+ */
+ buf[0] = BME680_REG_STATUS;
+ ret = spi_write_then_read(spi, buf, 1, buf + 1, 1);
+ if (ret < 0) {
+ dev_err(&spi->dev, "failed to set page %u\n", page);
+ return ret;
+ }
+
+ buf[0] = BME680_REG_STATUS;
+ if (page)
+ buf[1] |= BME680_SPI_MEM_PAGE_BIT;
+ else
+ buf[1] &= ~BME680_SPI_MEM_PAGE_BIT;
+
+ ret = spi_write(spi, buf, 2);
+ if (ret < 0) {
+ dev_err(&spi->dev, "failed to set page %u\n", page);
+ return ret;
+ }
+
+ ctx->current_page = page;
+
+ return 0;
+}
+
static int bme680_regmap_spi_write(void *context, const void *data,
size_t count)
{
- struct spi_device *spi = context;
+ struct bme680_spi_bus_context *ctx = context;
+ struct spi_device *spi = ctx->spi;
+ int ret;
u8 buf[2];

memcpy(buf, data, 2);
+
+ ret = bme680_regmap_spi_select_page(ctx, buf[0]);
+ if (ret)
+ return ret;
+
/*
* The SPI register address (= full register address without bit 7)
* and the write command (bit7 = RW = '0')
*/
buf[0] &= ~0x80;

- return spi_write_then_read(spi, buf, 2, NULL, 0);
+ return spi_write(spi, buf, 2);
}

static int bme680_regmap_spi_read(void *context, const void *reg,
size_t reg_size, void *val, size_t val_size)
{
- struct spi_device *spi = context;
+ struct bme680_spi_bus_context *ctx = context;
+ struct spi_device *spi = ctx->spi;
+ int ret;
+ u8 addr = *(const u8 *)reg;
+
+ ret = bme680_regmap_spi_select_page(ctx, addr);
+ if (ret)
+ return ret;

- return spi_write_then_read(spi, reg, reg_size, val, val_size);
+ addr |= 0x80; /* bit7 = RW = '1' */
+
+ return spi_write_then_read(spi, &addr, 1, val, val_size);
}

static struct regmap_bus bme680_regmap_bus = {
@@ -45,8 +110,8 @@ static struct regmap_bus bme680_regmap_bus = {
static int bme680_spi_probe(struct spi_device *spi)
{
const struct spi_device_id *id = spi_get_device_id(spi);
+ struct bme680_spi_bus_context *bus_context;
struct regmap *regmap;
- unsigned int val;
int ret;

spi->bits_per_word = 8;
@@ -56,45 +121,21 @@ static int bme680_spi_probe(struct spi_device *spi)
return ret;
}

+ bus_context = devm_kzalloc(&spi->dev, sizeof(*bus_context), GFP_KERNEL);
+ if (!bus_context)
+ return -ENOMEM;
+
+ bus_context->spi = spi;
+ bus_context->current_page = 0xff; /* Undefined on warm boot */
+
regmap = devm_regmap_init(&spi->dev, &bme680_regmap_bus,
- &spi->dev, &bme680_regmap_config);
+ bus_context, &bme680_regmap_config);
if (IS_ERR(regmap)) {
dev_err(&spi->dev, "Failed to register spi regmap %d\n",
(int)PTR_ERR(regmap));
return PTR_ERR(regmap);
}

- ret = regmap_write(regmap, BME680_REG_SOFT_RESET_SPI,
- BME680_CMD_SOFTRESET);
- if (ret < 0) {
- dev_err(&spi->dev, "Failed to reset chip\n");
- return ret;
- }
-
- /* after power-on reset, Page 0(0x80-0xFF) of spi_mem_page is active */
- ret = regmap_read(regmap, BME680_REG_CHIP_SPI_ID, &val);
- if (ret < 0) {
- dev_err(&spi->dev, "Error reading SPI chip ID\n");
- return ret;
- }
-
- if (val != BME680_CHIP_ID_VAL) {
- dev_err(&spi->dev, "Wrong chip ID, got %x expected %x\n",
- val, BME680_CHIP_ID_VAL);
- return -ENODEV;
- }
- /*
- * select Page 1 of spi_mem_page to enable access to
- * to registers from address 0x00 to 0x7F.
- */
- ret = regmap_write_bits(regmap, BME680_REG_STATUS,
- BME680_SPI_MEM_PAGE_BIT,
- BME680_SPI_MEM_PAGE_1_VAL);
- if (ret < 0) {
- dev_err(&spi->dev, "failed to set page 1 of spi_mem_page\n");
- return ret;
- }
-
return bme680_core_probe(&spi->dev, regmap, id->name);
}

diff --git a/drivers/iio/common/cros_ec_sensors/cros_ec_sensors.c b/drivers/iio/common/cros_ec_sensors/cros_ec_sensors.c
index 89cb0066a6e0..8d76afb87d87 100644
--- a/drivers/iio/common/cros_ec_sensors/cros_ec_sensors.c
+++ b/drivers/iio/common/cros_ec_sensors/cros_ec_sensors.c
@@ -103,9 +103,10 @@ static int cros_ec_sensors_read(struct iio_dev *indio_dev,
* Do not use IIO_DEGREE_TO_RAD to avoid precision
* loss. Round to the nearest integer.
*/
- *val = div_s64(val64 * 314159 + 9000000ULL, 1000);
- *val2 = 18000 << (CROS_EC_SENSOR_BITS - 1);
- ret = IIO_VAL_FRACTIONAL;
+ *val = 0;
+ *val2 = div_s64(val64 * 3141592653ULL,
+ 180 << (CROS_EC_SENSOR_BITS - 1));
+ ret = IIO_VAL_INT_PLUS_NANO;
break;
case MOTIONSENSE_TYPE_MAG:
/*
diff --git a/drivers/iio/dac/mcp4725.c b/drivers/iio/dac/mcp4725.c
index 6d71fd905e29..c701a45469f6 100644
--- a/drivers/iio/dac/mcp4725.c
+++ b/drivers/iio/dac/mcp4725.c
@@ -92,6 +92,7 @@ static ssize_t mcp4725_store_eeprom(struct device *dev,

inoutbuf[0] = 0x60; /* write EEPROM */
inoutbuf[0] |= data->ref_mode << 3;
+ inoutbuf[0] |= data->powerdown ? ((data->powerdown_mode + 1) << 1) : 0;
inoutbuf[1] = data->dac_value >> 4;
inoutbuf[2] = (data->dac_value & 0xf) << 4;

diff --git a/drivers/iio/gyro/bmg160_core.c b/drivers/iio/gyro/bmg160_core.c
index 63ca31628a93..92c07ab826eb 100644
--- a/drivers/iio/gyro/bmg160_core.c
+++ b/drivers/iio/gyro/bmg160_core.c
@@ -582,11 +582,10 @@ static int bmg160_read_raw(struct iio_dev *indio_dev,
case IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY:
return bmg160_get_filter(data, val);
case IIO_CHAN_INFO_SCALE:
- *val = 0;
switch (chan->type) {
case IIO_TEMP:
- *val2 = 500000;
- return IIO_VAL_INT_PLUS_MICRO;
+ *val = 500;
+ return IIO_VAL_INT;
case IIO_ANGL_VEL:
{
int i;
@@ -594,6 +593,7 @@ static int bmg160_read_raw(struct iio_dev *indio_dev,
for (i = 0; i < ARRAY_SIZE(bmg160_scale_table); ++i) {
if (bmg160_scale_table[i].dps_range ==
data->dps_range) {
+ *val = 0;
*val2 = bmg160_scale_table[i].scale;
return IIO_VAL_INT_PLUS_MICRO;
}
diff --git a/drivers/iio/gyro/mpu3050-core.c b/drivers/iio/gyro/mpu3050-core.c
index 77fac81a3adc..5ddebede31a6 100644
--- a/drivers/iio/gyro/mpu3050-core.c
+++ b/drivers/iio/gyro/mpu3050-core.c
@@ -29,7 +29,8 @@

#include "mpu3050.h"

-#define MPU3050_CHIP_ID 0x69
+#define MPU3050_CHIP_ID 0x68
+#define MPU3050_CHIP_ID_MASK 0x7E

/*
* Register map: anything suffixed *_H is a big-endian high byte and always
@@ -1176,8 +1177,9 @@ int mpu3050_common_probe(struct device *dev,
goto err_power_down;
}

- if (val != MPU3050_CHIP_ID) {
- dev_err(dev, "unsupported chip id %02x\n", (u8)val);
+ if ((val & MPU3050_CHIP_ID_MASK) != MPU3050_CHIP_ID) {
+ dev_err(dev, "unsupported chip id %02x\n",
+ (u8)(val & MPU3050_CHIP_ID_MASK));
ret = -ENODEV;
goto err_power_down;
}
diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c
index cd5bfe39591b..dadd921a4a30 100644
--- a/drivers/iio/industrialio-buffer.c
+++ b/drivers/iio/industrialio-buffer.c
@@ -320,9 +320,8 @@ static int iio_scan_mask_set(struct iio_dev *indio_dev,
const unsigned long *mask;
unsigned long *trialmask;

- trialmask = kmalloc_array(BITS_TO_LONGS(indio_dev->masklength),
- sizeof(*trialmask),
- GFP_KERNEL);
+ trialmask = kcalloc(BITS_TO_LONGS(indio_dev->masklength),
+ sizeof(*trialmask), GFP_KERNEL);
if (trialmask == NULL)
return -ENOMEM;
if (!indio_dev->masklength) {
diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index 4f5cd9f60870..5b65750ce775 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -1738,10 +1738,10 @@ EXPORT_SYMBOL(__iio_device_register);
**/
void iio_device_unregister(struct iio_dev *indio_dev)
{
- mutex_lock(&indio_dev->info_exist_lock);
-
cdev_device_del(&indio_dev->chrdev, &indio_dev->dev);

+ mutex_lock(&indio_dev->info_exist_lock);
+
iio_device_unregister_debugfs(indio_dev);

iio_disable_all_buffers(indio_dev);
diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c
index 5f366838b7ff..e2a4570a47e8 100644
--- a/drivers/infiniband/core/uverbs_main.c
+++ b/drivers/infiniband/core/uverbs_main.c
@@ -992,6 +992,8 @@ void uverbs_user_mmap_disassociate(struct ib_uverbs_file *ufile)
* will only be one mm, so no big deal.
*/
down_write(&mm->mmap_sem);
+ if (!mmget_still_valid(mm))
+ goto skip_mm;
mutex_lock(&ufile->umap_lock);
list_for_each_entry_safe (priv, next_priv, &ufile->umaps,
list) {
@@ -1006,6 +1008,7 @@ void uverbs_user_mmap_disassociate(struct ib_uverbs_file *ufile)
vma->vm_flags &= ~(VM_SHARED | VM_MAYSHARE);
}
mutex_unlock(&ufile->umap_lock);
+ skip_mm:
up_write(&mm->mmap_sem);
mmput(mm);
}
diff --git a/drivers/input/mouse/elan_i2c_core.c b/drivers/input/mouse/elan_i2c_core.c
index 628ef617bb2f..f9525d6f0bfe 100644
--- a/drivers/input/mouse/elan_i2c_core.c
+++ b/drivers/input/mouse/elan_i2c_core.c
@@ -1339,21 +1339,46 @@ static const struct acpi_device_id elan_acpi_id[] = {
{ "ELAN0600", 0 },
{ "ELAN0601", 0 },
{ "ELAN0602", 0 },
+ { "ELAN0603", 0 },
+ { "ELAN0604", 0 },
{ "ELAN0605", 0 },
+ { "ELAN0606", 0 },
+ { "ELAN0607", 0 },
{ "ELAN0608", 0 },
{ "ELAN0609", 0 },
{ "ELAN060B", 0 },
{ "ELAN060C", 0 },
+ { "ELAN060F", 0 },
+ { "ELAN0610", 0 },
{ "ELAN0611", 0 },
{ "ELAN0612", 0 },
+ { "ELAN0615", 0 },
+ { "ELAN0616", 0 },
{ "ELAN0617", 0 },
{ "ELAN0618", 0 },
+ { "ELAN0619", 0 },
+ { "ELAN061A", 0 },
+ { "ELAN061B", 0 },
{ "ELAN061C", 0 },
{ "ELAN061D", 0 },
{ "ELAN061E", 0 },
+ { "ELAN061F", 0 },
{ "ELAN0620", 0 },
{ "ELAN0621", 0 },
{ "ELAN0622", 0 },
+ { "ELAN0623", 0 },
+ { "ELAN0624", 0 },
+ { "ELAN0625", 0 },
+ { "ELAN0626", 0 },
+ { "ELAN0627", 0 },
+ { "ELAN0628", 0 },
+ { "ELAN0629", 0 },
+ { "ELAN062A", 0 },
+ { "ELAN062B", 0 },
+ { "ELAN062C", 0 },
+ { "ELAN062D", 0 },
+ { "ELAN0631", 0 },
+ { "ELAN0632", 0 },
{ "ELAN1000", 0 },
{ }
};
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 537c90c8eb0a..f89fc6ea6078 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -3214,8 +3214,12 @@ static int bond_netdev_event(struct notifier_block *this,
return NOTIFY_DONE;

if (event_dev->flags & IFF_MASTER) {
+ int ret;
+
netdev_dbg(event_dev, "IFF_MASTER\n");
- return bond_master_netdev_event(event, event_dev);
+ ret = bond_master_netdev_event(event, event_dev);
+ if (ret != NOTIFY_DONE)
+ return ret;
}

if (event_dev->flags & IFF_SLAVE) {
diff --git a/drivers/net/ethernet/cavium/thunder/nicvf_main.c b/drivers/net/ethernet/cavium/thunder/nicvf_main.c
index d4ee9f9c8c34..36263c77df46 100644
--- a/drivers/net/ethernet/cavium/thunder/nicvf_main.c
+++ b/drivers/net/ethernet/cavium/thunder/nicvf_main.c
@@ -32,6 +32,13 @@
#define DRV_NAME "nicvf"
#define DRV_VERSION "1.0"

+/* NOTE: Packets bigger than 1530 are split across multiple pages and XDP needs
+ * the buffer to be contiguous. Allow XDP to be set up only if we don't exceed
+ * this value, keeping headroom for the 14 byte Ethernet header and two
+ * VLAN tags (for QinQ)
+ */
+#define MAX_XDP_MTU (1530 - ETH_HLEN - VLAN_HLEN * 2)
+
/* Supported devices */
static const struct pci_device_id nicvf_id_table[] = {
{ PCI_DEVICE_SUB(PCI_VENDOR_ID_CAVIUM,
@@ -1582,6 +1589,15 @@ static int nicvf_change_mtu(struct net_device *netdev, int new_mtu)
struct nicvf *nic = netdev_priv(netdev);
int orig_mtu = netdev->mtu;

+ /* For now just support only the usual MTU sized frames,
+ * plus some headroom for VLAN, QinQ.
+ */
+ if (nic->xdp_prog && new_mtu > MAX_XDP_MTU) {
+ netdev_warn(netdev, "Jumbo frames not yet supported with XDP, current MTU %d.\n",
+ netdev->mtu);
+ return -EINVAL;
+ }
+
netdev->mtu = new_mtu;

if (!netif_running(netdev))
@@ -1830,8 +1846,10 @@ static int nicvf_xdp_setup(struct nicvf *nic, struct bpf_prog *prog)
bool bpf_attached = false;
int ret = 0;

- /* For now just support only the usual MTU sized frames */
- if (prog && (dev->mtu > 1500)) {
+ /* For now just support only the usual MTU sized frames,
+ * plus some headroom for VLAN, QinQ.
+ */
+ if (prog && dev->mtu > MAX_XDP_MTU) {
netdev_warn(dev, "Jumbo frames not yet supported with XDP, current MTU %d.\n",
dev->mtu);
return -EOPNOTSUPP;
diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index 697c2427f2b7..a96ad20ee484 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -1840,13 +1840,9 @@ static int fec_enet_clk_enable(struct net_device *ndev, bool enable)
int ret;

if (enable) {
- ret = clk_prepare_enable(fep->clk_ahb);
- if (ret)
- return ret;
-
ret = clk_prepare_enable(fep->clk_enet_out);
if (ret)
- goto failed_clk_enet_out;
+ return ret;

if (fep->clk_ptp) {
mutex_lock(&fep->ptp_clk_mutex);
@@ -1866,7 +1862,6 @@ static int fec_enet_clk_enable(struct net_device *ndev, bool enable)

phy_reset_after_clk_enable(ndev->phydev);
} else {
- clk_disable_unprepare(fep->clk_ahb);
clk_disable_unprepare(fep->clk_enet_out);
if (fep->clk_ptp) {
mutex_lock(&fep->ptp_clk_mutex);
@@ -1885,8 +1880,6 @@ static int fec_enet_clk_enable(struct net_device *ndev, bool enable)
failed_clk_ptp:
if (fep->clk_enet_out)
clk_disable_unprepare(fep->clk_enet_out);
-failed_clk_enet_out:
- clk_disable_unprepare(fep->clk_ahb);

return ret;
}
@@ -3470,6 +3463,9 @@ fec_probe(struct platform_device *pdev)
ret = clk_prepare_enable(fep->clk_ipg);
if (ret)
goto failed_clk_ipg;
+ ret = clk_prepare_enable(fep->clk_ahb);
+ if (ret)
+ goto failed_clk_ahb;

fep->reg_phy = devm_regulator_get_optional(&pdev->dev, "phy");
if (!IS_ERR(fep->reg_phy)) {
@@ -3563,6 +3559,9 @@ fec_probe(struct platform_device *pdev)
pm_runtime_put(&pdev->dev);
pm_runtime_disable(&pdev->dev);
failed_regulator:
+ clk_disable_unprepare(fep->clk_ahb);
+failed_clk_ahb:
+ clk_disable_unprepare(fep->clk_ipg);
failed_clk_ipg:
fec_enet_clk_enable(ndev, false);
failed_clk:
@@ -3686,6 +3685,7 @@ static int __maybe_unused fec_runtime_suspend(struct device *dev)
struct net_device *ndev = dev_get_drvdata(dev);
struct fec_enet_private *fep = netdev_priv(ndev);

+ clk_disable_unprepare(fep->clk_ahb);
clk_disable_unprepare(fep->clk_ipg);

return 0;
@@ -3695,8 +3695,20 @@ static int __maybe_unused fec_runtime_resume(struct device *dev)
{
struct net_device *ndev = dev_get_drvdata(dev);
struct fec_enet_private *fep = netdev_priv(ndev);
+ int ret;

- return clk_prepare_enable(fep->clk_ipg);
+ ret = clk_prepare_enable(fep->clk_ahb);
+ if (ret)
+ return ret;
+ ret = clk_prepare_enable(fep->clk_ipg);
+ if (ret)
+ goto failed_clk_ipg;
+
+ return 0;
+
+failed_clk_ipg:
+ clk_disable_unprepare(fep->clk_ahb);
+ return ret;
}

static const struct dev_pm_ops fec_pm_ops = {
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun.c b/drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun.c
index f3c7ab6faea5..b8521e2f64ac 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun.c
@@ -39,6 +39,10 @@ static int get_route_and_out_devs(struct mlx5e_priv *priv,
return -EOPNOTSUPP;
}

+ if (!(mlx5e_eswitch_rep(*out_dev) &&
+ mlx5e_is_uplink_rep(netdev_priv(*out_dev))))
+ return -EOPNOTSUPP;
+
return 0;
}

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
index e6099f51d25f..3b9e5f0d0212 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
@@ -1665,7 +1665,8 @@ static int set_pflag_rx_no_csum_complete(struct net_device *netdev, bool enable)
struct mlx5e_channel *c;
int i;

- if (!test_bit(MLX5E_STATE_OPENED, &priv->state))
+ if (!test_bit(MLX5E_STATE_OPENED, &priv->state) ||
+ priv->channels.params.xdp_prog)
return 0;

for (i = 0; i < channels->num; i++) {
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index 93e50ccd44c3..0cb19e4dd439 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -950,7 +950,11 @@ static int mlx5e_open_rq(struct mlx5e_channel *c,
if (params->rx_dim_enabled)
__set_bit(MLX5E_RQ_STATE_AM, &c->rq.state);

- if (MLX5E_GET_PFLAG(params, MLX5E_PFLAG_RX_NO_CSUM_COMPLETE))
+ /* We disable csum_complete when XDP is enabled since
+ * XDP programs might manipulate packets which will render
+ * skb->checksum incorrect.
+ */
+ if (MLX5E_GET_PFLAG(params, MLX5E_PFLAG_RX_NO_CSUM_COMPLETE) || c->xdp)
__set_bit(MLX5E_RQ_STATE_NO_CSUM_COMPLETE, &c->rq.state);

return 0;
@@ -4570,7 +4574,7 @@ void mlx5e_build_rss_params(struct mlx5e_rss_params *rss_params,
{
enum mlx5e_traffic_types tt;

- rss_params->hfunc = ETH_RSS_HASH_XOR;
+ rss_params->hfunc = ETH_RSS_HASH_TOP;
netdev_rss_key_fill(rss_params->toeplitz_hash_key,
sizeof(rss_params->toeplitz_hash_key));
mlx5e_build_default_indir_rqt(rss_params->indirection_rqt,
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
index f86e4804e83e..2cbda8abd8b9 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
@@ -693,7 +693,14 @@ static inline bool is_last_ethertype_ip(struct sk_buff *skb, int *network_depth,
{
*proto = ((struct ethhdr *)skb->data)->h_proto;
*proto = __vlan_get_protocol(skb, *proto, network_depth);
- return (*proto == htons(ETH_P_IP) || *proto == htons(ETH_P_IPV6));
+
+ if (*proto == htons(ETH_P_IP))
+ return pskb_may_pull(skb, *network_depth + sizeof(struct iphdr));
+
+ if (*proto == htons(ETH_P_IPV6))
+ return pskb_may_pull(skb, *network_depth + sizeof(struct ipv6hdr));
+
+ return false;
}

static inline void mlx5e_enable_ecn(struct mlx5e_rq *rq, struct sk_buff *skb)
@@ -713,17 +720,6 @@ static inline void mlx5e_enable_ecn(struct mlx5e_rq *rq, struct sk_buff *skb)
rq->stats->ecn_mark += !!rc;
}

-static u32 mlx5e_get_fcs(const struct sk_buff *skb)
-{
- const void *fcs_bytes;
- u32 _fcs_bytes;
-
- fcs_bytes = skb_header_pointer(skb, skb->len - ETH_FCS_LEN,
- ETH_FCS_LEN, &_fcs_bytes);
-
- return __get_unaligned_cpu32(fcs_bytes);
-}
-
static u8 get_ip_proto(struct sk_buff *skb, int network_depth, __be16 proto)
{
void *ip_p = skb->data + network_depth;
@@ -734,6 +730,68 @@ static u8 get_ip_proto(struct sk_buff *skb, int network_depth, __be16 proto)

#define short_frame(size) ((size) <= ETH_ZLEN + ETH_FCS_LEN)

+#define MAX_PADDING 8
+
+static void
+tail_padding_csum_slow(struct sk_buff *skb, int offset, int len,
+ struct mlx5e_rq_stats *stats)
+{
+ stats->csum_complete_tail_slow++;
+ skb->csum = csum_block_add(skb->csum,
+ skb_checksum(skb, offset, len, 0),
+ offset);
+}
+
+static void
+tail_padding_csum(struct sk_buff *skb, int offset,
+ struct mlx5e_rq_stats *stats)
+{
+ u8 tail_padding[MAX_PADDING];
+ int len = skb->len - offset;
+ void *tail;
+
+ if (unlikely(len > MAX_PADDING)) {
+ tail_padding_csum_slow(skb, offset, len, stats);
+ return;
+ }
+
+ tail = skb_header_pointer(skb, offset, len, tail_padding);
+ if (unlikely(!tail)) {
+ tail_padding_csum_slow(skb, offset, len, stats);
+ return;
+ }
+
+ stats->csum_complete_tail++;
+ skb->csum = csum_block_add(skb->csum, csum_partial(tail, len, 0), offset);
+}
+
+static void
+mlx5e_skb_padding_csum(struct sk_buff *skb, int network_depth, __be16 proto,
+ struct mlx5e_rq_stats *stats)
+{
+ struct ipv6hdr *ip6;
+ struct iphdr *ip4;
+ int pkt_len;
+
+ switch (proto) {
+ case htons(ETH_P_IP):
+ ip4 = (struct iphdr *)(skb->data + network_depth);
+ pkt_len = network_depth + ntohs(ip4->tot_len);
+ break;
+ case htons(ETH_P_IPV6):
+ ip6 = (struct ipv6hdr *)(skb->data + network_depth);
+ pkt_len = network_depth + sizeof(*ip6) + ntohs(ip6->payload_len);
+ break;
+ default:
+ return;
+ }
+
+ if (likely(pkt_len >= skb->len))
+ return;
+
+ tail_padding_csum(skb, pkt_len, stats);
+}
+
static inline void mlx5e_handle_csum(struct net_device *netdev,
struct mlx5_cqe64 *cqe,
struct mlx5e_rq *rq,
@@ -753,7 +811,8 @@ static inline void mlx5e_handle_csum(struct net_device *netdev,
return;
}

- if (unlikely(test_bit(MLX5E_RQ_STATE_NO_CSUM_COMPLETE, &rq->state)))
+ /* True when explicitly set via priv flag, or XDP prog is loaded */
+ if (test_bit(MLX5E_RQ_STATE_NO_CSUM_COMPLETE, &rq->state))
goto csum_unnecessary;

/* CQE csum doesn't cover padding octets in short ethernet
@@ -781,18 +840,15 @@ static inline void mlx5e_handle_csum(struct net_device *netdev,
skb->csum = csum_partial(skb->data + ETH_HLEN,
network_depth - ETH_HLEN,
skb->csum);
- if (unlikely(netdev->features & NETIF_F_RXFCS))
- skb->csum = csum_block_add(skb->csum,
- (__force __wsum)mlx5e_get_fcs(skb),
- skb->len - ETH_FCS_LEN);
+
+ mlx5e_skb_padding_csum(skb, network_depth, proto, stats);
stats->csum_complete++;
return;
}

csum_unnecessary:
if (likely((cqe->hds_ip_ext & CQE_L3_OK) &&
- ((cqe->hds_ip_ext & CQE_L4_OK) ||
- (get_cqe_l4_hdr_type(cqe) == CQE_L4_HDR_TYPE_NONE)))) {
+ (cqe->hds_ip_ext & CQE_L4_OK))) {
skb->ip_summed = CHECKSUM_UNNECESSARY;
if (cqe_is_tunneled(cqe)) {
skb->csum_level = 1;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c
index d3fe48ff9da9..4461b44acafc 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c
@@ -59,6 +59,8 @@ static const struct counter_desc sw_stats_desc[] = {
{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, rx_csum_unnecessary) },
{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, rx_csum_none) },
{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, rx_csum_complete) },
+ { MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, rx_csum_complete_tail) },
+ { MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, rx_csum_complete_tail_slow) },
{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, rx_csum_unnecessary_inner) },
{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, rx_xdp_drop) },
{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, rx_xdp_redirect) },
@@ -151,6 +153,8 @@ void mlx5e_grp_sw_update_stats(struct mlx5e_priv *priv)
s->rx_removed_vlan_packets += rq_stats->removed_vlan_packets;
s->rx_csum_none += rq_stats->csum_none;
s->rx_csum_complete += rq_stats->csum_complete;
+ s->rx_csum_complete_tail += rq_stats->csum_complete_tail;
+ s->rx_csum_complete_tail_slow += rq_stats->csum_complete_tail_slow;
s->rx_csum_unnecessary += rq_stats->csum_unnecessary;
s->rx_csum_unnecessary_inner += rq_stats->csum_unnecessary_inner;
s->rx_xdp_drop += rq_stats->xdp_drop;
@@ -1192,6 +1196,8 @@ static const struct counter_desc rq_stats_desc[] = {
{ MLX5E_DECLARE_RX_STAT(struct mlx5e_rq_stats, packets) },
{ MLX5E_DECLARE_RX_STAT(struct mlx5e_rq_stats, bytes) },
{ MLX5E_DECLARE_RX_STAT(struct mlx5e_rq_stats, csum_complete) },
+ { MLX5E_DECLARE_RX_STAT(struct mlx5e_rq_stats, csum_complete_tail) },
+ { MLX5E_DECLARE_RX_STAT(struct mlx5e_rq_stats, csum_complete_tail_slow) },
{ MLX5E_DECLARE_RX_STAT(struct mlx5e_rq_stats, csum_unnecessary) },
{ MLX5E_DECLARE_RX_STAT(struct mlx5e_rq_stats, csum_unnecessary_inner) },
{ MLX5E_DECLARE_RX_STAT(struct mlx5e_rq_stats, csum_none) },
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h
index fe91ec06e3c7..714303bf0797 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h
@@ -71,6 +71,8 @@ struct mlx5e_sw_stats {
u64 rx_csum_unnecessary;
u64 rx_csum_none;
u64 rx_csum_complete;
+ u64 rx_csum_complete_tail;
+ u64 rx_csum_complete_tail_slow;
u64 rx_csum_unnecessary_inner;
u64 rx_xdp_drop;
u64 rx_xdp_redirect;
@@ -181,6 +183,8 @@ struct mlx5e_rq_stats {
u64 packets;
u64 bytes;
u64 csum_complete;
+ u64 csum_complete_tail;
+ u64 csum_complete_tail_slow;
u64 csum_unnecessary;
u64 csum_unnecessary_inner;
u64 csum_none;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fpga/tls.c b/drivers/net/ethernet/mellanox/mlx5/core/fpga/tls.c
index 8de64e88c670..22a2ef111514 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fpga/tls.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fpga/tls.c
@@ -148,14 +148,16 @@ static int mlx5_fpga_tls_alloc_swid(struct idr *idr, spinlock_t *idr_spinlock,
return ret;
}

-static void mlx5_fpga_tls_release_swid(struct idr *idr,
- spinlock_t *idr_spinlock, u32 swid)
+static void *mlx5_fpga_tls_release_swid(struct idr *idr,
+ spinlock_t *idr_spinlock, u32 swid)
{
unsigned long flags;
+ void *ptr;

spin_lock_irqsave(idr_spinlock, flags);
- idr_remove(idr, swid);
+ ptr = idr_remove(idr, swid);
spin_unlock_irqrestore(idr_spinlock, flags);
+ return ptr;
}

static void mlx_tls_kfree_complete(struct mlx5_fpga_conn *conn,
@@ -165,20 +167,12 @@ static void mlx_tls_kfree_complete(struct mlx5_fpga_conn *conn,
kfree(buf);
}

-struct mlx5_teardown_stream_context {
- struct mlx5_fpga_tls_command_context cmd;
- u32 swid;
-};
-
static void
mlx5_fpga_tls_teardown_completion(struct mlx5_fpga_conn *conn,
struct mlx5_fpga_device *fdev,
struct mlx5_fpga_tls_command_context *cmd,
struct mlx5_fpga_dma_buf *resp)
{
- struct mlx5_teardown_stream_context *ctx =
- container_of(cmd, struct mlx5_teardown_stream_context, cmd);
-
if (resp) {
u32 syndrome = MLX5_GET(tls_resp, resp->sg[0].data, syndrome);

@@ -186,14 +180,6 @@ mlx5_fpga_tls_teardown_completion(struct mlx5_fpga_conn *conn,
mlx5_fpga_err(fdev,
"Teardown stream failed with syndrome = %d",
syndrome);
- else if (MLX5_GET(tls_cmd, cmd->buf.sg[0].data, direction_sx))
- mlx5_fpga_tls_release_swid(&fdev->tls->tx_idr,
- &fdev->tls->tx_idr_spinlock,
- ctx->swid);
- else
- mlx5_fpga_tls_release_swid(&fdev->tls->rx_idr,
- &fdev->tls->rx_idr_spinlock,
- ctx->swid);
}
mlx5_fpga_tls_put_command_ctx(cmd);
}
@@ -217,22 +203,22 @@ int mlx5_fpga_tls_resync_rx(struct mlx5_core_dev *mdev, u32 handle, u32 seq,
void *cmd;
int ret;

- rcu_read_lock();
- flow = idr_find(&mdev->fpga->tls->rx_idr, ntohl(handle));
- rcu_read_unlock();
-
- if (!flow) {
- WARN_ONCE(1, "Received NULL pointer for handle\n");
- return -EINVAL;
- }
-
buf = kzalloc(size, GFP_ATOMIC);
if (!buf)
return -ENOMEM;

cmd = (buf + 1);

+ rcu_read_lock();
+ flow = idr_find(&mdev->fpga->tls->rx_idr, ntohl(handle));
+ if (unlikely(!flow)) {
+ rcu_read_unlock();
+ WARN_ONCE(1, "Received NULL pointer for handle\n");
+ kfree(buf);
+ return -EINVAL;
+ }
mlx5_fpga_tls_flow_to_cmd(flow, cmd);
+ rcu_read_unlock();

MLX5_SET(tls_cmd, cmd, swid, ntohl(handle));
MLX5_SET64(tls_cmd, cmd, tls_rcd_sn, be64_to_cpu(rcd_sn));
@@ -253,7 +239,7 @@ int mlx5_fpga_tls_resync_rx(struct mlx5_core_dev *mdev, u32 handle, u32 seq,
static void mlx5_fpga_tls_send_teardown_cmd(struct mlx5_core_dev *mdev,
void *flow, u32 swid, gfp_t flags)
{
- struct mlx5_teardown_stream_context *ctx;
+ struct mlx5_fpga_tls_command_context *ctx;
struct mlx5_fpga_dma_buf *buf;
void *cmd;

@@ -261,7 +247,7 @@ static void mlx5_fpga_tls_send_teardown_cmd(struct mlx5_core_dev *mdev,
if (!ctx)
return;

- buf = &ctx->cmd.buf;
+ buf = &ctx->buf;
cmd = (ctx + 1);
MLX5_SET(tls_cmd, cmd, command_type, CMD_TEARDOWN_STREAM);
MLX5_SET(tls_cmd, cmd, swid, swid);
@@ -272,8 +258,7 @@ static void mlx5_fpga_tls_send_teardown_cmd(struct mlx5_core_dev *mdev,
buf->sg[0].data = cmd;
buf->sg[0].size = MLX5_TLS_COMMAND_SIZE;

- ctx->swid = swid;
- mlx5_fpga_tls_cmd_send(mdev->fpga, &ctx->cmd,
+ mlx5_fpga_tls_cmd_send(mdev->fpga, ctx,
mlx5_fpga_tls_teardown_completion);
}

@@ -283,13 +268,14 @@ void mlx5_fpga_tls_del_flow(struct mlx5_core_dev *mdev, u32 swid,
struct mlx5_fpga_tls *tls = mdev->fpga->tls;
void *flow;

- rcu_read_lock();
if (direction_sx)
- flow = idr_find(&tls->tx_idr, swid);
+ flow = mlx5_fpga_tls_release_swid(&tls->tx_idr,
+ &tls->tx_idr_spinlock,
+ swid);
else
- flow = idr_find(&tls->rx_idr, swid);
-
- rcu_read_unlock();
+ flow = mlx5_fpga_tls_release_swid(&tls->rx_idr,
+ &tls->rx_idr_spinlock,
+ swid);

if (!flow) {
mlx5_fpga_err(mdev->fpga, "No flow information for swid %u\n",
@@ -297,6 +283,7 @@ void mlx5_fpga_tls_del_flow(struct mlx5_core_dev *mdev, u32 swid,
return;
}

+ synchronize_rcu(); /* before kfree(flow) */
mlx5_fpga_tls_send_teardown_cmd(mdev, flow, swid, flags);
}

diff --git a/drivers/net/ethernet/mellanox/mlxsw/core.c b/drivers/net/ethernet/mellanox/mlxsw/core.c
index ddedf8ab5b64..fc643fde5a4a 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/core.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/core.c
@@ -568,7 +568,7 @@ static int mlxsw_emad_init(struct mlxsw_core *mlxsw_core)
if (!(mlxsw_core->bus->features & MLXSW_BUS_F_TXRX))
return 0;

- emad_wq = alloc_workqueue("mlxsw_core_emad", WQ_MEM_RECLAIM, 0);
+ emad_wq = alloc_workqueue("mlxsw_core_emad", 0, 0);
if (!emad_wq)
return -ENOMEM;
mlxsw_core->emad_wq = emad_wq;
@@ -1912,10 +1912,10 @@ static int __init mlxsw_core_module_init(void)
{
int err;

- mlxsw_wq = alloc_workqueue(mlxsw_core_driver_name, WQ_MEM_RECLAIM, 0);
+ mlxsw_wq = alloc_workqueue(mlxsw_core_driver_name, 0, 0);
if (!mlxsw_wq)
return -ENOMEM;
- mlxsw_owq = alloc_ordered_workqueue("%s_ordered", WQ_MEM_RECLAIM,
+ mlxsw_owq = alloc_ordered_workqueue("%s_ordered", 0,
mlxsw_core_driver_name);
if (!mlxsw_owq) {
err = -ENOMEM;
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
index 98e5ffd71b91..2f6afbfd689f 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
@@ -6745,7 +6745,7 @@ static int mlxsw_sp_router_port_check_rif_addr(struct mlxsw_sp *mlxsw_sp,
/* A RIF is not created for macvlan netdevs. Their MAC is used to
* populate the FDB
*/
- if (netif_is_macvlan(dev))
+ if (netif_is_macvlan(dev) || netif_is_l3_master(dev))
return 0;

for (i = 0; i < MLXSW_CORE_RES_GET(mlxsw_sp->core, MAX_RIFS); i++) {
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
index c772109b638d..f5a10e286400 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
@@ -1654,7 +1654,7 @@ static int mlxsw_sp_port_mdb_add(struct mlxsw_sp_port *mlxsw_sp_port,
u16 fid_index;
int err = 0;

- if (switchdev_trans_ph_prepare(trans))
+ if (switchdev_trans_ph_commit(trans))
return 0;

bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp->bridge, orig_dev);
diff --git a/drivers/net/ethernet/netronome/nfp/flower/action.c b/drivers/net/ethernet/netronome/nfp/flower/action.c
index 8d54b36afee8..2bbc5b8f92c2 100644
--- a/drivers/net/ethernet/netronome/nfp/flower/action.c
+++ b/drivers/net/ethernet/netronome/nfp/flower/action.c
@@ -49,8 +49,7 @@ nfp_fl_push_vlan(struct nfp_fl_push_vlan *push_vlan,

tmp_push_vlan_tci =
FIELD_PREP(NFP_FL_PUSH_VLAN_PRIO, tcf_vlan_push_prio(action)) |
- FIELD_PREP(NFP_FL_PUSH_VLAN_VID, tcf_vlan_push_vid(action)) |
- NFP_FL_PUSH_VLAN_CFI;
+ FIELD_PREP(NFP_FL_PUSH_VLAN_VID, tcf_vlan_push_vid(action));
push_vlan->vlan_tci = cpu_to_be16(tmp_push_vlan_tci);
}

diff --git a/drivers/net/ethernet/netronome/nfp/flower/cmsg.h b/drivers/net/ethernet/netronome/nfp/flower/cmsg.h
index 15f41cfef9f1..ab07d76b4186 100644
--- a/drivers/net/ethernet/netronome/nfp/flower/cmsg.h
+++ b/drivers/net/ethernet/netronome/nfp/flower/cmsg.h
@@ -26,7 +26,7 @@
#define NFP_FLOWER_LAYER2_GENEVE_OP BIT(6)

#define NFP_FLOWER_MASK_VLAN_PRIO GENMASK(15, 13)
-#define NFP_FLOWER_MASK_VLAN_CFI BIT(12)
+#define NFP_FLOWER_MASK_VLAN_PRESENT BIT(12)
#define NFP_FLOWER_MASK_VLAN_VID GENMASK(11, 0)

#define NFP_FLOWER_MASK_MPLS_LB GENMASK(31, 12)
@@ -82,7 +82,6 @@
#define NFP_FL_OUT_FLAGS_TYPE_IDX GENMASK(2, 0)

#define NFP_FL_PUSH_VLAN_PRIO GENMASK(15, 13)
-#define NFP_FL_PUSH_VLAN_CFI BIT(12)
#define NFP_FL_PUSH_VLAN_VID GENMASK(11, 0)

#define IPV6_FLOW_LABEL_MASK cpu_to_be32(0x000fffff)
diff --git a/drivers/net/ethernet/netronome/nfp/flower/match.c b/drivers/net/ethernet/netronome/nfp/flower/match.c
index cdf75595f627..571cc8ced33e 100644
--- a/drivers/net/ethernet/netronome/nfp/flower/match.c
+++ b/drivers/net/ethernet/netronome/nfp/flower/match.c
@@ -26,14 +26,12 @@ nfp_flower_compile_meta_tci(struct nfp_flower_meta_tci *frame,
FLOW_DISSECTOR_KEY_VLAN,
target);
/* Populate the tci field. */
- if (flow_vlan->vlan_id || flow_vlan->vlan_priority) {
- tmp_tci = FIELD_PREP(NFP_FLOWER_MASK_VLAN_PRIO,
- flow_vlan->vlan_priority) |
- FIELD_PREP(NFP_FLOWER_MASK_VLAN_VID,
- flow_vlan->vlan_id) |
- NFP_FLOWER_MASK_VLAN_CFI;
- frame->tci = cpu_to_be16(tmp_tci);
- }
+ tmp_tci = NFP_FLOWER_MASK_VLAN_PRESENT;
+ tmp_tci |= FIELD_PREP(NFP_FLOWER_MASK_VLAN_PRIO,
+ flow_vlan->vlan_priority) |
+ FIELD_PREP(NFP_FLOWER_MASK_VLAN_VID,
+ flow_vlan->vlan_id);
+ frame->tci = cpu_to_be16(tmp_tci);
}
}

diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
index 6ce3f666d142..1283632091d5 100644
--- a/drivers/net/team/team.c
+++ b/drivers/net/team/team.c
@@ -1247,6 +1247,23 @@ static int team_port_add(struct team *team, struct net_device *port_dev,
goto err_option_port_add;
}

+ /* set promiscuity level to new slave */
+ if (dev->flags & IFF_PROMISC) {
+ err = dev_set_promiscuity(port_dev, 1);
+ if (err)
+ goto err_set_slave_promisc;
+ }
+
+ /* set allmulti level to new slave */
+ if (dev->flags & IFF_ALLMULTI) {
+ err = dev_set_allmulti(port_dev, 1);
+ if (err) {
+ if (dev->flags & IFF_PROMISC)
+ dev_set_promiscuity(port_dev, -1);
+ goto err_set_slave_promisc;
+ }
+ }
+
netif_addr_lock_bh(dev);
dev_uc_sync_multiple(port_dev, dev);
dev_mc_sync_multiple(port_dev, dev);
@@ -1263,6 +1280,9 @@ static int team_port_add(struct team *team, struct net_device *port_dev,

return 0;

+err_set_slave_promisc:
+ __team_option_inst_del_port(team, port);
+
err_option_port_add:
team_upper_dev_unlink(team, port);

@@ -1308,6 +1328,12 @@ static int team_port_del(struct team *team, struct net_device *port_dev)

team_port_disable(team, port);
list_del_rcu(&port->list);
+
+ if (dev->flags & IFF_PROMISC)
+ dev_set_promiscuity(port_dev, -1);
+ if (dev->flags & IFF_ALLMULTI)
+ dev_set_allmulti(port_dev, -1);
+
team_upper_dev_unlink(team, port);
netdev_rx_handler_unregister(port_dev);
team_port_disable_netpoll(port);
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02_mac.c b/drivers/net/wireless/mediatek/mt76/mt76x02_mac.c
index 7c9dfa54fee8..9678322aca60 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76x02_mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76x02_mac.c
@@ -421,7 +421,6 @@ void mt76x02_send_tx_status(struct mt76x02_dev *dev,
return;

rcu_read_lock();
- mt76_tx_status_lock(mdev, &list);

if (stat->wcid < ARRAY_SIZE(dev->mt76.wcid))
wcid = rcu_dereference(dev->mt76.wcid[stat->wcid]);
@@ -434,6 +433,8 @@ void mt76x02_send_tx_status(struct mt76x02_dev *dev,
drv_priv);
}

+ mt76_tx_status_lock(mdev, &list);
+
if (wcid) {
if (stat->pktid)
status.skb = mt76_tx_status_skb_get(mdev, wcid,
@@ -453,7 +454,9 @@ void mt76x02_send_tx_status(struct mt76x02_dev *dev,
if (*update == 0 && stat_val == stat_cache &&
stat->wcid == msta->status.wcid && msta->n_frames < 32) {
msta->n_frames++;
- goto out;
+ mt76_tx_status_unlock(mdev, &list);
+ rcu_read_unlock();
+ return;
}

mt76x02_mac_fill_tx_status(dev, status.info, &msta->status,
@@ -469,11 +472,10 @@ void mt76x02_send_tx_status(struct mt76x02_dev *dev,

if (status.skb)
mt76_tx_status_skb_done(mdev, status.skb, &list);
- else
- ieee80211_tx_status_ext(mt76_hw(dev), &status);
-
-out:
mt76_tx_status_unlock(mdev, &list);
+
+ if (!status.skb)
+ ieee80211_tx_status_ext(mt76_hw(dev), &status);
rcu_read_unlock();
}

diff --git a/drivers/net/wireless/ralink/rt2x00/rt2x00.h b/drivers/net/wireless/ralink/rt2x00/rt2x00.h
index 4b1744e9fb78..50b92ca92bd7 100644
--- a/drivers/net/wireless/ralink/rt2x00/rt2x00.h
+++ b/drivers/net/wireless/ralink/rt2x00/rt2x00.h
@@ -673,7 +673,6 @@ enum rt2x00_state_flags {
CONFIG_CHANNEL_HT40,
CONFIG_POWERSAVING,
CONFIG_HT_DISABLED,
- CONFIG_QOS_DISABLED,
CONFIG_MONITORING,

/*
diff --git a/drivers/net/wireless/ralink/rt2x00/rt2x00mac.c b/drivers/net/wireless/ralink/rt2x00/rt2x00mac.c
index 2825560e2424..e8462f25d252 100644
--- a/drivers/net/wireless/ralink/rt2x00/rt2x00mac.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2x00mac.c
@@ -642,18 +642,8 @@ void rt2x00mac_bss_info_changed(struct ieee80211_hw *hw,
rt2x00dev->intf_associated--;

rt2x00leds_led_assoc(rt2x00dev, !!rt2x00dev->intf_associated);
-
- clear_bit(CONFIG_QOS_DISABLED, &rt2x00dev->flags);
}

- /*
- * Check for access point which do not support 802.11e . We have to
- * generate data frames sequence number in S/W for such AP, because
- * of H/W bug.
- */
- if (changes & BSS_CHANGED_QOS && !bss_conf->qos)
- set_bit(CONFIG_QOS_DISABLED, &rt2x00dev->flags);
-
/*
* When the erp information has changed, we should perform
* additional configuration steps. For all other changes we are done.
diff --git a/drivers/net/wireless/ralink/rt2x00/rt2x00queue.c b/drivers/net/wireless/ralink/rt2x00/rt2x00queue.c
index 92ddc19e7bf7..4834b4eb0206 100644
--- a/drivers/net/wireless/ralink/rt2x00/rt2x00queue.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2x00queue.c
@@ -201,15 +201,18 @@ static void rt2x00queue_create_tx_descriptor_seq(struct rt2x00_dev *rt2x00dev,
if (!rt2x00_has_cap_flag(rt2x00dev, REQUIRE_SW_SEQNO)) {
/*
* rt2800 has a H/W (or F/W) bug, device incorrectly increase
- * seqno on retransmited data (non-QOS) frames. To workaround
- * the problem let's generate seqno in software if QOS is
- * disabled.
+ * seqno on retransmitted data (non-QOS) and management frames.
+ * To workaround the problem let's generate seqno in software.
+ * Except for beacons which are transmitted periodically by H/W
+ * hence hardware has to assign seqno for them.
*/
- if (test_bit(CONFIG_QOS_DISABLED, &rt2x00dev->flags))
- __clear_bit(ENTRY_TXD_GENERATE_SEQ, &txdesc->flags);
- else
+ if (ieee80211_is_beacon(hdr->frame_control)) {
+ __set_bit(ENTRY_TXD_GENERATE_SEQ, &txdesc->flags);
/* H/W will generate sequence number */
return;
+ }
+
+ __clear_bit(ENTRY_TXD_GENERATE_SEQ, &txdesc->flags);
}

/*
diff --git a/drivers/scsi/libfc/fc_rport.c b/drivers/scsi/libfc/fc_rport.c
index dfba4921b265..5bf61431434b 100644
--- a/drivers/scsi/libfc/fc_rport.c
+++ b/drivers/scsi/libfc/fc_rport.c
@@ -2162,7 +2162,6 @@ static void fc_rport_recv_logo_req(struct fc_lport *lport, struct fc_frame *fp)
FC_RPORT_DBG(rdata, "Received LOGO request while in state %s\n",
fc_rport_state(rdata));

- rdata->flags &= ~FC_RP_STARTED;
fc_rport_enter_delete(rdata, RPORT_EV_STOP);
mutex_unlock(&rdata->rp_mutex);
kref_put(&rdata->kref, fc_rport_destroy);
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 655ad26106e4..5c78710b713f 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -1763,8 +1763,12 @@ static blk_status_t scsi_queue_rq(struct blk_mq_hw_ctx *hctx,
ret = BLK_STS_DEV_RESOURCE;
break;
default:
+ if (unlikely(!scsi_device_online(sdev)))
+ scsi_req(req)->result = DID_NO_CONNECT << 16;
+ else
+ scsi_req(req)->result = DID_ERROR << 16;
/*
- * Make sure to release all allocated ressources when
+ * Make sure to release all allocated resources when
* we hit an error, as we will never see this command
* again.
*/
diff --git a/drivers/staging/comedi/drivers/ni_usb6501.c b/drivers/staging/comedi/drivers/ni_usb6501.c
index 808ed92ed66f..1bb1cb651349 100644
--- a/drivers/staging/comedi/drivers/ni_usb6501.c
+++ b/drivers/staging/comedi/drivers/ni_usb6501.c
@@ -463,10 +463,8 @@ static int ni6501_alloc_usb_buffers(struct comedi_device *dev)

size = usb_endpoint_maxp(devpriv->ep_tx);
devpriv->usb_tx_buf = kzalloc(size, GFP_KERNEL);
- if (!devpriv->usb_tx_buf) {
- kfree(devpriv->usb_rx_buf);
+ if (!devpriv->usb_tx_buf)
return -ENOMEM;
- }

return 0;
}
@@ -518,6 +516,9 @@ static int ni6501_auto_attach(struct comedi_device *dev,
if (!devpriv)
return -ENOMEM;

+ mutex_init(&devpriv->mut);
+ usb_set_intfdata(intf, devpriv);
+
ret = ni6501_find_endpoints(dev);
if (ret)
return ret;
@@ -526,9 +527,6 @@ static int ni6501_auto_attach(struct comedi_device *dev,
if (ret)
return ret;

- mutex_init(&devpriv->mut);
- usb_set_intfdata(intf, devpriv);
-
ret = comedi_alloc_subdevices(dev, 2);
if (ret)
return ret;
diff --git a/drivers/staging/comedi/drivers/vmk80xx.c b/drivers/staging/comedi/drivers/vmk80xx.c
index 6234b649d887..65dc6c51037e 100644
--- a/drivers/staging/comedi/drivers/vmk80xx.c
+++ b/drivers/staging/comedi/drivers/vmk80xx.c
@@ -682,10 +682,8 @@ static int vmk80xx_alloc_usb_buffers(struct comedi_device *dev)

size = usb_endpoint_maxp(devpriv->ep_tx);
devpriv->usb_tx_buf = kzalloc(size, GFP_KERNEL);
- if (!devpriv->usb_tx_buf) {
- kfree(devpriv->usb_rx_buf);
+ if (!devpriv->usb_tx_buf)
return -ENOMEM;
- }

return 0;
}
@@ -800,6 +798,8 @@ static int vmk80xx_auto_attach(struct comedi_device *dev,

devpriv->model = board->model;

+ sema_init(&devpriv->limit_sem, 8);
+
ret = vmk80xx_find_usb_endpoints(dev);
if (ret)
return ret;
@@ -808,8 +808,6 @@ static int vmk80xx_auto_attach(struct comedi_device *dev,
if (ret)
return ret;

- sema_init(&devpriv->limit_sem, 8);
-
usb_set_intfdata(intf, devpriv);

if (devpriv->model == VMK8055_MODEL)
diff --git a/drivers/staging/iio/adc/ad7192.c b/drivers/staging/iio/adc/ad7192.c
index acdbc07fd259..2fc8bc22b57b 100644
--- a/drivers/staging/iio/adc/ad7192.c
+++ b/drivers/staging/iio/adc/ad7192.c
@@ -109,10 +109,10 @@
#define AD7192_CH_AIN3 BIT(6) /* AIN3 - AINCOM */
#define AD7192_CH_AIN4 BIT(7) /* AIN4 - AINCOM */

-#define AD7193_CH_AIN1P_AIN2M 0x000 /* AIN1(+) - AIN2(-) */
-#define AD7193_CH_AIN3P_AIN4M 0x001 /* AIN3(+) - AIN4(-) */
-#define AD7193_CH_AIN5P_AIN6M 0x002 /* AIN5(+) - AIN6(-) */
-#define AD7193_CH_AIN7P_AIN8M 0x004 /* AIN7(+) - AIN8(-) */
+#define AD7193_CH_AIN1P_AIN2M 0x001 /* AIN1(+) - AIN2(-) */
+#define AD7193_CH_AIN3P_AIN4M 0x002 /* AIN3(+) - AIN4(-) */
+#define AD7193_CH_AIN5P_AIN6M 0x004 /* AIN5(+) - AIN6(-) */
+#define AD7193_CH_AIN7P_AIN8M 0x008 /* AIN7(+) - AIN8(-) */
#define AD7193_CH_TEMP 0x100 /* Temp senseor */
#define AD7193_CH_AIN2P_AIN2M 0x200 /* AIN2(+) - AIN2(-) */
#define AD7193_CH_AIN1 0x401 /* AIN1 - AINCOM */
diff --git a/drivers/staging/iio/meter/ade7854.c b/drivers/staging/iio/meter/ade7854.c
index 029c3bf42d4d..07774c000c5a 100644
--- a/drivers/staging/iio/meter/ade7854.c
+++ b/drivers/staging/iio/meter/ade7854.c
@@ -269,7 +269,7 @@ static IIO_DEV_ATTR_VPEAK(0644,
static IIO_DEV_ATTR_IPEAK(0644,
ade7854_read_32bit,
ade7854_write_32bit,
- ADE7854_VPEAK);
+ ADE7854_IPEAK);
static IIO_DEV_ATTR_APHCAL(0644,
ade7854_read_16bit,
ade7854_write_16bit,
diff --git a/drivers/staging/most/core.c b/drivers/staging/most/core.c
index 18936cdb1083..956daf8c3bd2 100644
--- a/drivers/staging/most/core.c
+++ b/drivers/staging/most/core.c
@@ -1431,7 +1431,7 @@ int most_register_interface(struct most_interface *iface)

INIT_LIST_HEAD(&iface->p->channel_list);
iface->p->dev_id = id;
- snprintf(iface->p->name, STRING_SIZE, "mdev%d", id);
+ strcpy(iface->p->name, iface->description);
iface->dev.init_name = iface->p->name;
iface->dev.bus = &mc.bus;
iface->dev.parent = &mc.dev;
diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index 93bd90f1ff14..e9a8b79ba77e 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -2497,14 +2497,16 @@ static void sci_set_termios(struct uart_port *port, struct ktermios *termios,
* center of the last stop bit in sampling clocks.
*/
int last_stop = bits * 2 - 1;
- int deviation = min_err * srr * last_stop / 2 / baud;
+ int deviation = DIV_ROUND_CLOSEST(min_err * last_stop *
+ (int)(srr + 1),
+ 2 * (int)baud);

if (abs(deviation) >= 2) {
/* At least two sampling clocks off at the
* last stop bit; we can increase the error
* margin by shifting the sampling point.
*/
- int shift = min(-8, max(7, deviation / 2));
+ int shift = clamp(deviation / 2, -8, 7);

hssrr |= (shift << HSCIF_SRHP_SHIFT) &
HSCIF_SRHP_MASK;
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index 9646ff63e77a..b6621a2e916d 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -1518,7 +1518,8 @@ static void csi_J(struct vc_data *vc, int vpar)
return;
}
scr_memsetw(start, vc->vc_video_erase_char, 2 * count);
- update_region(vc, (unsigned long) start, count);
+ if (con_should_update(vc))
+ do_update_region(vc, (unsigned long) start, count);
vc->vc_need_wrap = 0;
}

diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index a2e5dc7716e2..674cfc5a4084 100644
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -911,8 +911,12 @@ static int vhost_new_umem_range(struct vhost_umem *umem,
u64 start, u64 size, u64 end,
u64 userspace_addr, int perm)
{
- struct vhost_umem_node *tmp, *node = kmalloc(sizeof(*node), GFP_ATOMIC);
+ struct vhost_umem_node *tmp, *node;

+ if (!size)
+ return -EFAULT;
+
+ node = kmalloc(sizeof(*node), GFP_ATOMIC);
if (!node)
return -ENOMEM;

diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 6c934ab3722b..10ead04346ee 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -1303,6 +1303,7 @@ cifsFileInfo_get_locked(struct cifsFileInfo *cifs_file)
}

struct cifsFileInfo *cifsFileInfo_get(struct cifsFileInfo *cifs_file);
+void _cifsFileInfo_put(struct cifsFileInfo *cifs_file, bool wait_oplock_hdlr);
void cifsFileInfo_put(struct cifsFileInfo *cifs_file);

#define CIFS_CACHE_READ_FLG 1
@@ -1824,6 +1825,7 @@ GLOBAL_EXTERN spinlock_t gidsidlock;
#endif /* CONFIG_CIFS_ACL */

void cifs_oplock_break(struct work_struct *work);
+void cifs_queue_oplock_break(struct cifsFileInfo *cfile);

extern const struct slow_work_ops cifs_oplock_break_ops;
extern struct workqueue_struct *cifsiod_wq;
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 8d107587208f..7c05353b766c 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -360,12 +360,30 @@ cifsFileInfo_get(struct cifsFileInfo *cifs_file)
return cifs_file;
}

-/*
- * Release a reference on the file private data. This may involve closing
- * the filehandle out on the server. Must be called without holding
- * tcon->open_file_lock and cifs_file->file_info_lock.
+/**
+ * cifsFileInfo_put - release a reference of file priv data
+ *
+ * Always potentially wait for oplock handler. See _cifsFileInfo_put().
*/
void cifsFileInfo_put(struct cifsFileInfo *cifs_file)
+{
+ _cifsFileInfo_put(cifs_file, true);
+}
+
+/**
+ * _cifsFileInfo_put - release a reference of file priv data
+ *
+ * This may involve closing the filehandle @cifs_file out on the
+ * server. Must be called without holding tcon->open_file_lock and
+ * cifs_file->file_info_lock.
+ *
+ * If @wait_for_oplock_handler is true and we are releasing the last
+ * reference, wait for any running oplock break handler of the file
+ * and cancel any pending one. If calling this function from the
+ * oplock break handler, you need to pass false.
+ *
+ */
+void _cifsFileInfo_put(struct cifsFileInfo *cifs_file, bool wait_oplock_handler)
{
struct inode *inode = d_inode(cifs_file->dentry);
struct cifs_tcon *tcon = tlink_tcon(cifs_file->tlink);
@@ -414,7 +432,8 @@ void cifsFileInfo_put(struct cifsFileInfo *cifs_file)

spin_unlock(&tcon->open_file_lock);

- oplock_break_cancelled = cancel_work_sync(&cifs_file->oplock_break);
+ oplock_break_cancelled = wait_oplock_handler ?
+ cancel_work_sync(&cifs_file->oplock_break) : false;

if (!tcon->need_reconnect && !cifs_file->invalidHandle) {
struct TCP_Server_Info *server = tcon->ses->server;
@@ -4480,6 +4499,7 @@ void cifs_oplock_break(struct work_struct *work)
cinode);
cifs_dbg(FYI, "Oplock release rc = %d\n", rc);
}
+ _cifsFileInfo_put(cfile, false /* do not wait for ourself */);
cifs_done_oplock_break(cinode);
}

diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c
index bee203055b30..1e1626a2cfc3 100644
--- a/fs/cifs/misc.c
+++ b/fs/cifs/misc.c
@@ -501,8 +501,7 @@ is_valid_oplock_break(char *buffer, struct TCP_Server_Info *srv)
CIFS_INODE_DOWNGRADE_OPLOCK_TO_L2,
&pCifsInode->flags);

- queue_work(cifsoplockd_wq,
- &netfile->oplock_break);
+ cifs_queue_oplock_break(netfile);
netfile->oplock_break_cancelled = false;

spin_unlock(&tcon->open_file_lock);
@@ -607,6 +606,28 @@ void cifs_put_writer(struct cifsInodeInfo *cinode)
spin_unlock(&cinode->writers_lock);
}

+/**
+ * cifs_queue_oplock_break - queue the oplock break handler for cfile
+ *
+ * This function is called from the demultiplex thread when it
+ * receives an oplock break for @cfile.
+ *
+ * Assumes the tcon->open_file_lock is held.
+ * Assumes cfile->file_info_lock is NOT held.
+ */
+void cifs_queue_oplock_break(struct cifsFileInfo *cfile)
+{
+ /*
+ * Bump the handle refcount now while we hold the
+ * open_file_lock to enforce the validity of it for the oplock
+ * break handler. The matching put is done at the end of the
+ * handler.
+ */
+ cifsFileInfo_get(cfile);
+
+ queue_work(cifsoplockd_wq, &cfile->oplock_break);
+}
+
void cifs_done_oplock_break(struct cifsInodeInfo *cinode)
{
clear_bit(CIFS_INODE_PENDING_OPLOCK_BREAK, &cinode->flags);
diff --git a/fs/cifs/smb2misc.c b/fs/cifs/smb2misc.c
index 58700d2ba8cd..0a7ed2e3ad4f 100644
--- a/fs/cifs/smb2misc.c
+++ b/fs/cifs/smb2misc.c
@@ -555,7 +555,7 @@ smb2_tcon_has_lease(struct cifs_tcon *tcon, struct smb2_lease_break *rsp,
clear_bit(CIFS_INODE_DOWNGRADE_OPLOCK_TO_L2,
&cinode->flags);

- queue_work(cifsoplockd_wq, &cfile->oplock_break);
+ cifs_queue_oplock_break(cfile);
kfree(lw);
return true;
}
@@ -719,8 +719,8 @@ smb2_is_valid_oplock_break(char *buffer, struct TCP_Server_Info *server)
CIFS_INODE_DOWNGRADE_OPLOCK_TO_L2,
&cinode->flags);
spin_unlock(&cfile->file_info_lock);
- queue_work(cifsoplockd_wq,
- &cfile->oplock_break);
+
+ cifs_queue_oplock_break(cfile);

spin_unlock(&tcon->open_file_lock);
spin_unlock(&cifs_tcp_ses_lock);
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index ea56b1cdbdde..d5434ac0571b 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -2210,6 +2210,8 @@ smb2_query_symlink(const unsigned int xid, struct cifs_tcon *tcon,

rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, &err_iov,
&resp_buftype);
+ if (!rc)
+ SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid);
if (!rc || !err_iov.iov_base) {
rc = -ENOENT;
goto free_path;
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 068febe37fe4..938e75cc3b66 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -815,8 +815,11 @@ SMB2_negotiate(const unsigned int xid, struct cifs_ses *ses)
} else if (rsp->DialectRevision == cpu_to_le16(SMB21_PROT_ID)) {
/* ops set to 3.0 by default for default so update */
ses->server->ops = &smb21_operations;
- } else if (rsp->DialectRevision == cpu_to_le16(SMB311_PROT_ID))
+ ses->server->vals = &smb21_values;
+ } else if (rsp->DialectRevision == cpu_to_le16(SMB311_PROT_ID)) {
ses->server->ops = &smb311_operations;
+ ses->server->vals = &smb311_values;
+ }
} else if (le16_to_cpu(rsp->DialectRevision) !=
ses->server->vals->protocol_id) {
/* if requested single dialect ensure returned dialect matched */
@@ -3387,8 +3390,6 @@ SMB2_read(const unsigned int xid, struct cifs_io_parms *io_parms,
rqst.rq_nvec = 1;

rc = cifs_send_recv(xid, ses, &rqst, &resp_buftype, flags, &rsp_iov);
- cifs_small_buf_release(req);
-
rsp = (struct smb2_read_rsp *)rsp_iov.iov_base;

if (rc) {
@@ -3407,6 +3408,8 @@ SMB2_read(const unsigned int xid, struct cifs_io_parms *io_parms,
io_parms->tcon->tid, ses->Suid,
io_parms->offset, io_parms->length);

+ cifs_small_buf_release(req);
+
*nbytes = le32_to_cpu(rsp->DataLength);
if ((*nbytes > CIFS_MAX_MSGSIZE) ||
(*nbytes > io_parms->length)) {
@@ -3705,7 +3708,6 @@ SMB2_write(const unsigned int xid, struct cifs_io_parms *io_parms,

rc = cifs_send_recv(xid, io_parms->tcon->ses, &rqst,
&resp_buftype, flags, &rsp_iov);
- cifs_small_buf_release(req);
rsp = (struct smb2_write_rsp *)rsp_iov.iov_base;

if (rc) {
@@ -3723,6 +3725,7 @@ SMB2_write(const unsigned int xid, struct cifs_io_parms *io_parms,
io_parms->offset, *nbytes);
}

+ cifs_small_buf_release(req);
free_rsp_buf(resp_buftype, rsp);
return rc;
}
diff --git a/fs/dax.c b/fs/dax.c
index 05cca2214ae3..827ee143413e 100644
--- a/fs/dax.c
+++ b/fs/dax.c
@@ -33,6 +33,7 @@
#include <linux/sizes.h>
#include <linux/mmu_notifier.h>
#include <linux/iomap.h>
+#include <asm/pgalloc.h>
#include "internal.h"

#define CREATE_TRACE_POINTS
@@ -1409,7 +1410,9 @@ static vm_fault_t dax_pmd_load_hole(struct xa_state *xas, struct vm_fault *vmf,
{
struct address_space *mapping = vmf->vma->vm_file->f_mapping;
unsigned long pmd_addr = vmf->address & PMD_MASK;
+ struct vm_area_struct *vma = vmf->vma;
struct inode *inode = mapping->host;
+ pgtable_t pgtable = NULL;
struct page *zero_page;
spinlock_t *ptl;
pmd_t pmd_entry;
@@ -1424,12 +1427,22 @@ static vm_fault_t dax_pmd_load_hole(struct xa_state *xas, struct vm_fault *vmf,
*entry = dax_insert_entry(xas, mapping, vmf, *entry, pfn,
DAX_PMD | DAX_ZERO_PAGE, false);

+ if (arch_needs_pgtable_deposit()) {
+ pgtable = pte_alloc_one(vma->vm_mm);
+ if (!pgtable)
+ return VM_FAULT_OOM;
+ }
+
ptl = pmd_lock(vmf->vma->vm_mm, vmf->pmd);
if (!pmd_none(*(vmf->pmd))) {
spin_unlock(ptl);
goto fallback;
}

+ if (pgtable) {
+ pgtable_trans_huge_deposit(vma->vm_mm, vmf->pmd, pgtable);
+ mm_inc_nr_ptes(vma->vm_mm);
+ }
pmd_entry = mk_pmd(zero_page, vmf->vma->vm_page_prot);
pmd_entry = pmd_mkhuge(pmd_entry);
set_pmd_at(vmf->vma->vm_mm, pmd_addr, vmf->pmd, pmd_entry);
@@ -1438,6 +1451,8 @@ static vm_fault_t dax_pmd_load_hole(struct xa_state *xas, struct vm_fault *vmf,
return VM_FAULT_NOPAGE;

fallback:
+ if (pgtable)
+ pte_free(vma->vm_mm, pgtable);
trace_dax_pmd_load_hole_fallback(inode, vmf, zero_page, *entry);
return VM_FAULT_FALLBACK;
}
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index 85b0ef890b28..91bd2ff0c62c 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -1141,6 +1141,24 @@ static ssize_t clear_refs_write(struct file *file, const char __user *buf,
count = -EINTR;
goto out_mm;
}
+ /*
+ * Avoid to modify vma->vm_flags
+ * without locked ops while the
+ * coredump reads the vm_flags.
+ */
+ if (!mmget_still_valid(mm)) {
+ /*
+ * Silently return "count"
+ * like if get_task_mm()
+ * failed. FIXME: should this
+ * function have returned
+ * -ESRCH if get_task_mm()
+ * failed like if
+ * get_proc_task() fails?
+ */
+ up_write(&mm->mmap_sem);
+ goto out_mm;
+ }
for (vma = mm->mmap; vma; vma = vma->vm_next) {
vma->vm_flags &= ~VM_SOFTDIRTY;
vma_set_page_prot(vma);
diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c
index 89800fc7dc9d..f5de1e726356 100644
--- a/fs/userfaultfd.c
+++ b/fs/userfaultfd.c
@@ -629,6 +629,8 @@ static void userfaultfd_event_wait_completion(struct userfaultfd_ctx *ctx,

/* the various vma->vm_userfaultfd_ctx still points to it */
down_write(&mm->mmap_sem);
+ /* no task can run (and in turn coredump) yet */
+ VM_WARN_ON(!mmget_still_valid(mm));
for (vma = mm->mmap; vma; vma = vma->vm_next)
if (vma->vm_userfaultfd_ctx.ctx == release_new_ctx) {
vma->vm_userfaultfd_ctx = NULL_VM_UFFD_CTX;
@@ -883,6 +885,8 @@ static int userfaultfd_release(struct inode *inode, struct file *file)
* taking the mmap_sem for writing.
*/
down_write(&mm->mmap_sem);
+ if (!mmget_still_valid(mm))
+ goto skip_mm;
prev = NULL;
for (vma = mm->mmap; vma; vma = vma->vm_next) {
cond_resched();
@@ -905,6 +909,7 @@ static int userfaultfd_release(struct inode *inode, struct file *file)
vma->vm_flags = new_flags;
vma->vm_userfaultfd_ctx = NULL_VM_UFFD_CTX;
}
+skip_mm:
up_write(&mm->mmap_sem);
mmput(mm);
wakeup:
@@ -1333,6 +1338,8 @@ static int userfaultfd_register(struct userfaultfd_ctx *ctx,
goto out;

down_write(&mm->mmap_sem);
+ if (!mmget_still_valid(mm))
+ goto out_unlock;
vma = find_vma_prev(mm, start, &prev);
if (!vma)
goto out_unlock;
@@ -1520,6 +1527,8 @@ static int userfaultfd_unregister(struct userfaultfd_ctx *ctx,
goto out;

down_write(&mm->mmap_sem);
+ if (!mmget_still_valid(mm))
+ goto out_unlock;
vma = find_vma_prev(mm, start, &prev);
if (!vma)
goto out_unlock;
diff --git a/include/linux/kprobes.h b/include/linux/kprobes.h
index e07e91daaacc..72ff78c33033 100644
--- a/include/linux/kprobes.h
+++ b/include/linux/kprobes.h
@@ -173,6 +173,7 @@ struct kretprobe_instance {
struct kretprobe *rp;
kprobe_opcode_t *ret_addr;
struct task_struct *task;
+ void *fp;
char data[0];
};

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 848b54b7ec91..7df56decae37 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1484,6 +1484,7 @@ struct net_device_ops {
* @IFF_FAILOVER: device is a failover master device
* @IFF_FAILOVER_SLAVE: device is lower dev of a failover master device
* @IFF_L3MDEV_RX_HANDLER: only invoke the rx handler of L3 master device
+ * @IFF_LIVE_RENAME_OK: rename is allowed while device is up and running
*/
enum netdev_priv_flags {
IFF_802_1Q_VLAN = 1<<0,
@@ -1516,6 +1517,7 @@ enum netdev_priv_flags {
IFF_FAILOVER = 1<<27,
IFF_FAILOVER_SLAVE = 1<<28,
IFF_L3MDEV_RX_HANDLER = 1<<29,
+ IFF_LIVE_RENAME_OK = 1<<30,
};

#define IFF_802_1Q_VLAN IFF_802_1Q_VLAN
@@ -1547,6 +1549,7 @@ enum netdev_priv_flags {
#define IFF_FAILOVER IFF_FAILOVER
#define IFF_FAILOVER_SLAVE IFF_FAILOVER_SLAVE
#define IFF_L3MDEV_RX_HANDLER IFF_L3MDEV_RX_HANDLER
+#define IFF_LIVE_RENAME_OK IFF_LIVE_RENAME_OK

/**
* struct net_device - The DEVICE structure.
diff --git a/include/linux/sched/mm.h b/include/linux/sched/mm.h
index 3bfa6a0cbba4..c1dbb737a36c 100644
--- a/include/linux/sched/mm.h
+++ b/include/linux/sched/mm.h
@@ -49,6 +49,27 @@ static inline void mmdrop(struct mm_struct *mm)
__mmdrop(mm);
}

+/*
+ * This has to be called after a get_task_mm()/mmget_not_zero()
+ * followed by taking the mmap_sem for writing before modifying the
+ * vmas or anything the coredump pretends not to change from under it.
+ *
+ * NOTE: find_extend_vma() called from GUP context is the only place
+ * that can modify the "mm" (notably the vm_start/end) under mmap_sem
+ * for reading and outside the context of the process, so it is also
+ * the only case that holds the mmap_sem for reading that must call
+ * this function. Generally if the mmap_sem is hold for reading
+ * there's no need of this check after get_task_mm()/mmget_not_zero().
+ *
+ * This function can be obsoleted and the check can be removed, after
+ * the coredump code will hold the mmap_sem for writing before
+ * invoking the ->core_dump methods.
+ */
+static inline bool mmget_still_valid(struct mm_struct *mm)
+{
+ return likely(!mm->core_state);
+}
+
/**
* mmget() - Pin the address space associated with a &struct mm_struct.
* @mm: The address space to pin.
diff --git a/include/net/nfc/nci_core.h b/include/net/nfc/nci_core.h
index 87499b6b35d6..df5c69db68af 100644
--- a/include/net/nfc/nci_core.h
+++ b/include/net/nfc/nci_core.h
@@ -166,7 +166,7 @@ struct nci_conn_info {
* According to specification 102 622 chapter 4.4 Pipes,
* the pipe identifier is 7 bits long.
*/
-#define NCI_HCI_MAX_PIPES 127
+#define NCI_HCI_MAX_PIPES 128

struct nci_hci_gate {
u8 gate;
diff --git a/include/net/tls.h b/include/net/tls.h
index 1486b60c4de8..8b3d10917d99 100644
--- a/include/net/tls.h
+++ b/include/net/tls.h
@@ -289,6 +289,7 @@ int tls_device_sendmsg(struct sock *sk, struct msghdr *msg, size_t size);
int tls_device_sendpage(struct sock *sk, struct page *page,
int offset, size_t size, int flags);
void tls_device_sk_destruct(struct sock *sk);
+void tls_device_free_resources_tx(struct sock *sk);
void tls_device_init(void);
void tls_device_cleanup(void);
int tls_tx_records(struct sock *sk, int flags);
@@ -312,6 +313,7 @@ int tls_push_sg(struct sock *sk, struct tls_context *ctx,
int flags);
int tls_push_partial_record(struct sock *sk, struct tls_context *ctx,
int flags);
+bool tls_free_partial_record(struct sock *sk, struct tls_context *ctx);

int tls_push_pending_closed_record(struct sock *sk, struct tls_context *ctx,
int flags, long *timeo);
@@ -364,7 +366,7 @@ tls_validate_xmit_skb(struct sock *sk, struct net_device *dev,
static inline bool tls_is_sk_tx_device_offloaded(struct sock *sk)
{
#ifdef CONFIG_SOCK_VALIDATE_XMIT
- return sk_fullsock(sk) &
+ return sk_fullsock(sk) &&
(smp_load_acquire(&sk->sk_validate_xmit_skb) ==
&tls_validate_xmit_skb);
#else
diff --git a/kernel/events/ring_buffer.c b/kernel/events/ring_buffer.c
index 878c62ec0190..dbd7656b4f73 100644
--- a/kernel/events/ring_buffer.c
+++ b/kernel/events/ring_buffer.c
@@ -456,24 +456,21 @@ void perf_aux_output_end(struct perf_output_handle *handle, unsigned long size)
rb->aux_head += size;
}

- if (size || handle->aux_flags) {
- /*
- * Only send RECORD_AUX if we have something useful to communicate
- *
- * Note: the OVERWRITE records by themselves are not considered
- * useful, as they don't communicate any *new* information,
- * aside from the short-lived offset, that becomes history at
- * the next event sched-in and therefore isn't useful.
- * The userspace that needs to copy out AUX data in overwrite
- * mode should know to use user_page::aux_head for the actual
- * offset. So, from now on we don't output AUX records that
- * have *only* OVERWRITE flag set.
- */
-
- if (handle->aux_flags & ~(u64)PERF_AUX_FLAG_OVERWRITE)
- perf_event_aux_event(handle->event, aux_head, size,
- handle->aux_flags);
- }
+ /*
+ * Only send RECORD_AUX if we have something useful to communicate
+ *
+ * Note: the OVERWRITE records by themselves are not considered
+ * useful, as they don't communicate any *new* information,
+ * aside from the short-lived offset, that becomes history at
+ * the next event sched-in and therefore isn't useful.
+ * The userspace that needs to copy out AUX data in overwrite
+ * mode should know to use user_page::aux_head for the actual
+ * offset. So, from now on we don't output AUX records that
+ * have *only* OVERWRITE flag set.
+ */
+ if (size || (handle->aux_flags & ~(u64)PERF_AUX_FLAG_OVERWRITE))
+ perf_event_aux_event(handle->event, aux_head, size,
+ handle->aux_flags);

rb->user_page->aux_head = rb->aux_head;
if (rb_need_aux_wakeup(rb))
diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index f4ddfdd2d07e..de78d1b998f8 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -709,7 +709,6 @@ static void unoptimize_kprobe(struct kprobe *p, bool force)
static int reuse_unused_kprobe(struct kprobe *ap)
{
struct optimized_kprobe *op;
- int ret;

/*
* Unused kprobe MUST be on the way of delayed unoptimizing (means
@@ -720,9 +719,8 @@ static int reuse_unused_kprobe(struct kprobe *ap)
/* Enable the probe again */
ap->flags &= ~KPROBE_FLAG_DISABLED;
/* Optimize it again (remove from op->list) */
- ret = kprobe_optready(ap);
- if (ret)
- return ret;
+ if (!kprobe_optready(ap))
+ return -EINVAL;

optimize_kprobe(ap);
return 0;
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 5e61a1a99e38..eeb605656d59 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -4859,12 +4859,15 @@ static enum hrtimer_restart sched_cfs_slack_timer(struct hrtimer *timer)
return HRTIMER_NORESTART;
}

+extern const u64 max_cfs_quota_period;
+
static enum hrtimer_restart sched_cfs_period_timer(struct hrtimer *timer)
{
struct cfs_bandwidth *cfs_b =
container_of(timer, struct cfs_bandwidth, period_timer);
int overrun;
int idle = 0;
+ int count = 0;

raw_spin_lock(&cfs_b->lock);
for (;;) {
@@ -4872,6 +4875,28 @@ static enum hrtimer_restart sched_cfs_period_timer(struct hrtimer *timer)
if (!overrun)
break;

+ if (++count > 3) {
+ u64 new, old = ktime_to_ns(cfs_b->period);
+
+ new = (old * 147) / 128; /* ~115% */
+ new = min(new, max_cfs_quota_period);
+
+ cfs_b->period = ns_to_ktime(new);
+
+ /* since max is 1s, this is limited to 1e9^2, which fits in u64 */
+ cfs_b->quota *= new;
+ cfs_b->quota = div64_u64(cfs_b->quota, old);
+
+ pr_warn_ratelimited(
+ "cfs_period_timer[cpu%d]: period too short, scaling up (new cfs_period_us %lld, cfs_quota_us = %lld)\n",
+ smp_processor_id(),
+ div_u64(new, NSEC_PER_USEC),
+ div_u64(cfs_b->quota, NSEC_PER_USEC));
+
+ /* reset count so we don't come right back in here */
+ count = 0;
+ }
+
idle = do_sched_cfs_period_timer(cfs_b, overrun);
}
if (idle)
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 28ec71d914c7..f50f1471c119 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -126,6 +126,7 @@ static int zero;
static int __maybe_unused one = 1;
static int __maybe_unused two = 2;
static int __maybe_unused four = 4;
+static unsigned long zero_ul;
static unsigned long one_ul = 1;
static unsigned long long_max = LONG_MAX;
static int one_hundred = 100;
@@ -1723,7 +1724,7 @@ static struct ctl_table fs_table[] = {
.maxlen = sizeof(files_stat.max_files),
.mode = 0644,
.proc_handler = proc_doulongvec_minmax,
- .extra1 = &zero,
+ .extra1 = &zero_ul,
.extra2 = &long_max,
},
{
diff --git a/kernel/time/sched_clock.c b/kernel/time/sched_clock.c
index 094b82ca95e5..930113b9799a 100644
--- a/kernel/time/sched_clock.c
+++ b/kernel/time/sched_clock.c
@@ -272,7 +272,7 @@ static u64 notrace suspended_sched_clock_read(void)
return cd.read_data[seq & 1].epoch_cyc;
}

-static int sched_clock_suspend(void)
+int sched_clock_suspend(void)
{
struct clock_read_data *rd = &cd.read_data[0];

@@ -283,7 +283,7 @@ static int sched_clock_suspend(void)
return 0;
}

-static void sched_clock_resume(void)
+void sched_clock_resume(void)
{
struct clock_read_data *rd = &cd.read_data[0];

diff --git a/kernel/time/tick-common.c b/kernel/time/tick-common.c
index 529143b4c8d2..df401463a191 100644
--- a/kernel/time/tick-common.c
+++ b/kernel/time/tick-common.c
@@ -487,6 +487,7 @@ void tick_freeze(void)
trace_suspend_resume(TPS("timekeeping_freeze"),
smp_processor_id(), true);
system_state = SYSTEM_SUSPEND;
+ sched_clock_suspend();
timekeeping_suspend();
} else {
tick_suspend_local();
@@ -510,6 +511,7 @@ void tick_unfreeze(void)

if (tick_freeze_depth == num_online_cpus()) {
timekeeping_resume();
+ sched_clock_resume();
system_state = SYSTEM_RUNNING;
trace_suspend_resume(TPS("timekeeping_freeze"),
smp_processor_id(), false);
diff --git a/kernel/time/timekeeping.h b/kernel/time/timekeeping.h
index 7a9b4eb7a1d5..141ab3ab0354 100644
--- a/kernel/time/timekeeping.h
+++ b/kernel/time/timekeeping.h
@@ -14,6 +14,13 @@ extern u64 timekeeping_max_deferment(void);
extern void timekeeping_warp_clock(void);
extern int timekeeping_suspend(void);
extern void timekeeping_resume(void);
+#ifdef CONFIG_GENERIC_SCHED_CLOCK
+extern int sched_clock_suspend(void);
+extern void sched_clock_resume(void);
+#else
+static inline int sched_clock_suspend(void) { return 0; }
+static inline void sched_clock_resume(void) { }
+#endif

extern void do_timer(unsigned long ticks);
extern void update_wall_time(void);
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index aac7847c0214..f546ae5102e0 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -33,6 +33,7 @@
#include <linux/list.h>
#include <linux/hash.h>
#include <linux/rcupdate.h>
+#include <linux/kprobes.h>

#include <trace/events/sched.h>

@@ -6216,7 +6217,7 @@ void ftrace_reset_array_ops(struct trace_array *tr)
tr->ops->func = ftrace_stub;
}

-static inline void
+static nokprobe_inline void
__ftrace_ops_list_func(unsigned long ip, unsigned long parent_ip,
struct ftrace_ops *ignored, struct pt_regs *regs)
{
@@ -6276,11 +6277,13 @@ static void ftrace_ops_list_func(unsigned long ip, unsigned long parent_ip,
{
__ftrace_ops_list_func(ip, parent_ip, NULL, regs);
}
+NOKPROBE_SYMBOL(ftrace_ops_list_func);
#else
static void ftrace_ops_no_ops(unsigned long ip, unsigned long parent_ip)
{
__ftrace_ops_list_func(ip, parent_ip, NULL, NULL);
}
+NOKPROBE_SYMBOL(ftrace_ops_no_ops);
#endif

/*
@@ -6307,6 +6310,7 @@ static void ftrace_ops_assist_func(unsigned long ip, unsigned long parent_ip,
preempt_enable_notrace();
trace_clear_recursion(bit);
}
+NOKPROBE_SYMBOL(ftrace_ops_assist_func);

/**
* ftrace_ops_get_func - get the function a trampoline should call
diff --git a/mm/mmap.c b/mm/mmap.c
index fc1809b1bed6..da9236a5022e 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -45,6 +45,7 @@
#include <linux/moduleparam.h>
#include <linux/pkeys.h>
#include <linux/oom.h>
+#include <linux/sched/mm.h>

#include <linux/uaccess.h>
#include <asm/cacheflush.h>
@@ -2526,7 +2527,8 @@ find_extend_vma(struct mm_struct *mm, unsigned long addr)
vma = find_vma_prev(mm, addr, &prev);
if (vma && (vma->vm_start <= addr))
return vma;
- if (!prev || expand_stack(prev, addr))
+ /* don't alter vm_end if the coredump is running */
+ if (!prev || !mmget_still_valid(mm) || expand_stack(prev, addr))
return NULL;
if (prev->vm_flags & VM_LOCKED)
populate_vma_page_range(prev, addr, prev->vm_end, NULL);
@@ -2552,6 +2554,9 @@ find_extend_vma(struct mm_struct *mm, unsigned long addr)
return vma;
if (!(vma->vm_flags & VM_GROWSDOWN))
return NULL;
+ /* don't alter vm_start if the coredump is running */
+ if (!mmget_still_valid(mm))
+ return NULL;
start = vma->vm_start;
if (expand_stack(vma, addr))
return NULL;
diff --git a/mm/percpu.c b/mm/percpu.c
index db86282fd024..59bd6a51954c 100644
--- a/mm/percpu.c
+++ b/mm/percpu.c
@@ -2531,8 +2531,8 @@ int __init pcpu_embed_first_chunk(size_t reserved_size, size_t dyn_size,
ai->groups[group].base_offset = areas[group] - base;
}

- pr_info("Embedded %zu pages/cpu @%p s%zu r%zu d%zu u%zu\n",
- PFN_DOWN(size_sum), base, ai->static_size, ai->reserved_size,
+ pr_info("Embedded %zu pages/cpu s%zu r%zu d%zu u%zu\n",
+ PFN_DOWN(size_sum), ai->static_size, ai->reserved_size,
ai->dyn_size, ai->unit_size);

rc = pcpu_setup_first_chunk(ai, base);
@@ -2653,8 +2653,8 @@ int __init pcpu_page_first_chunk(size_t reserved_size,
}

/* we're ready, commit */
- pr_info("%d %s pages/cpu @%p s%zu r%zu d%zu\n",
- unit_pages, psize_str, vm.addr, ai->static_size,
+ pr_info("%d %s pages/cpu s%zu r%zu d%zu\n",
+ unit_pages, psize_str, ai->static_size,
ai->reserved_size, ai->dyn_size);

rc = pcpu_setup_first_chunk(ai, vm.addr);
diff --git a/mm/vmstat.c b/mm/vmstat.c
index 83b30edc2f7f..f807f2e3b4cb 100644
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -1274,13 +1274,8 @@ const char * const vmstat_text[] = {
#endif
#endif /* CONFIG_MEMORY_BALLOON */
#ifdef CONFIG_DEBUG_TLBFLUSH
-#ifdef CONFIG_SMP
"nr_tlb_remote_flush",
"nr_tlb_remote_flush_received",
-#else
- "", /* nr_tlb_remote_flush */
- "", /* nr_tlb_remote_flush_received */
-#endif /* CONFIG_SMP */
"nr_tlb_local_flush_all",
"nr_tlb_local_flush_one",
#endif /* CONFIG_DEBUG_TLBFLUSH */
diff --git a/net/atm/lec.c b/net/atm/lec.c
index d7f5cf5b7594..ad4f829193f0 100644
--- a/net/atm/lec.c
+++ b/net/atm/lec.c
@@ -710,7 +710,10 @@ static int lec_vcc_attach(struct atm_vcc *vcc, void __user *arg)

static int lec_mcast_attach(struct atm_vcc *vcc, int arg)
{
- if (arg < 0 || arg >= MAX_LEC_ITF || !dev_lec[arg])
+ if (arg < 0 || arg >= MAX_LEC_ITF)
+ return -EINVAL;
+ arg = array_index_nospec(arg, MAX_LEC_ITF);
+ if (!dev_lec[arg])
return -EINVAL;
vcc->proto_data = dev_lec[arg];
return lec_mcast_make(netdev_priv(dev_lec[arg]), vcc);
@@ -728,6 +731,7 @@ static int lecd_attach(struct atm_vcc *vcc, int arg)
i = arg;
if (arg >= MAX_LEC_ITF)
return -EINVAL;
+ i = array_index_nospec(arg, MAX_LEC_ITF);
if (!dev_lec[i]) {
int size;

diff --git a/net/bridge/br_input.c b/net/bridge/br_input.c
index 5ea7e56119c1..ba303ee99b9b 100644
--- a/net/bridge/br_input.c
+++ b/net/bridge/br_input.c
@@ -197,13 +197,10 @@ static void __br_handle_local_finish(struct sk_buff *skb)
/* note: already called with rcu_read_lock */
static int br_handle_local_finish(struct net *net, struct sock *sk, struct sk_buff *skb)
{
- struct net_bridge_port *p = br_port_get_rcu(skb->dev);
-
__br_handle_local_finish(skb);

- BR_INPUT_SKB_CB(skb)->brdev = p->br->dev;
- br_pass_frame_up(skb);
- return 0;
+ /* return 1 to signal the okfn() was called so it's ok to use the skb */
+ return 1;
}

/*
@@ -280,10 +277,18 @@ rx_handler_result_t br_handle_frame(struct sk_buff **pskb)
goto forward;
}

- /* Deliver packet to local host only */
- NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_IN, dev_net(skb->dev),
- NULL, skb, skb->dev, NULL, br_handle_local_finish);
- return RX_HANDLER_CONSUMED;
+ /* The else clause should be hit when nf_hook():
+ * - returns < 0 (drop/error)
+ * - returns = 0 (stolen/nf_queue)
+ * Thus return 1 from the okfn() to signal the skb is ok to pass
+ */
+ if (NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_IN,
+ dev_net(skb->dev), NULL, skb, skb->dev, NULL,
+ br_handle_local_finish) == 1) {
+ return RX_HANDLER_PASS;
+ } else {
+ return RX_HANDLER_CONSUMED;
+ }
}

forward:
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index e4777614a8a0..61ff0d497da6 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -1916,7 +1916,8 @@ static void br_multicast_start_querier(struct net_bridge *br,

__br_multicast_open(br, query);

- list_for_each_entry(port, &br->port_list, list) {
+ rcu_read_lock();
+ list_for_each_entry_rcu(port, &br->port_list, list) {
if (port->state == BR_STATE_DISABLED ||
port->state == BR_STATE_BLOCKING)
continue;
@@ -1928,6 +1929,7 @@ static void br_multicast_start_querier(struct net_bridge *br,
br_multicast_enable(&port->ip6_own_query);
#endif
}
+ rcu_read_unlock();
}

int br_multicast_toggle(struct net_bridge *br, unsigned long val)
diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index 9c07591b0232..7104cf13da84 100644
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c
@@ -1441,7 +1441,7 @@ static int br_fill_info(struct sk_buff *skb, const struct net_device *brdev)
nla_put_u8(skb, IFLA_BR_VLAN_STATS_ENABLED,
br_opt_get(br, BROPT_VLAN_STATS_ENABLED)) ||
nla_put_u8(skb, IFLA_BR_VLAN_STATS_PER_PORT,
- br_opt_get(br, IFLA_BR_VLAN_STATS_PER_PORT)))
+ br_opt_get(br, BROPT_VLAN_STATS_PER_PORT)))
return -EMSGSIZE;
#endif
#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
diff --git a/net/core/dev.c b/net/core/dev.c
index 12824e007e06..7277dd393c00 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1184,7 +1184,21 @@ int dev_change_name(struct net_device *dev, const char *newname)
BUG_ON(!dev_net(dev));

net = dev_net(dev);
- if (dev->flags & IFF_UP)
+
+ /* Some auto-enslaved devices e.g. failover slaves are
+ * special, as userspace might rename the device after
+ * the interface had been brought up and running since
+ * the point kernel initiated auto-enslavement. Allow
+ * live name change even when these slave devices are
+ * up and running.
+ *
+ * Typically, users of these auto-enslaving devices
+ * don't actually care about slave name change, as
+ * they are supposed to operate on master interface
+ * directly.
+ */
+ if (dev->flags & IFF_UP &&
+ likely(!(dev->priv_flags & IFF_LIVE_RENAME_OK)))
return -EBUSY;

write_seqcount_begin(&devnet_rename_seq);
diff --git a/net/core/failover.c b/net/core/failover.c
index 4a92a98ccce9..b5cd3c727285 100644
--- a/net/core/failover.c
+++ b/net/core/failover.c
@@ -80,14 +80,14 @@ static int failover_slave_register(struct net_device *slave_dev)
goto err_upper_link;
}

- slave_dev->priv_flags |= IFF_FAILOVER_SLAVE;
+ slave_dev->priv_flags |= (IFF_FAILOVER_SLAVE | IFF_LIVE_RENAME_OK);

if (fops && fops->slave_register &&
!fops->slave_register(slave_dev, failover_dev))
return NOTIFY_OK;

netdev_upper_dev_unlink(slave_dev, failover_dev);
- slave_dev->priv_flags &= ~IFF_FAILOVER_SLAVE;
+ slave_dev->priv_flags &= ~(IFF_FAILOVER_SLAVE | IFF_LIVE_RENAME_OK);
err_upper_link:
netdev_rx_handler_unregister(slave_dev);
done:
@@ -121,7 +121,7 @@ int failover_slave_unregister(struct net_device *slave_dev)

netdev_rx_handler_unregister(slave_dev);
netdev_upper_dev_unlink(slave_dev, failover_dev);
- slave_dev->priv_flags &= ~IFF_FAILOVER_SLAVE;
+ slave_dev->priv_flags &= ~(IFF_FAILOVER_SLAVE | IFF_LIVE_RENAME_OK);

if (fops && fops->slave_unregister &&
!fops->slave_unregister(slave_dev, failover_dev))
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index ef2cd5712098..40796b8bf820 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -5083,7 +5083,8 @@ EXPORT_SYMBOL_GPL(skb_gso_validate_mac_len);

static struct sk_buff *skb_reorder_vlan_header(struct sk_buff *skb)
{
- int mac_len;
+ int mac_len, meta_len;
+ void *meta;

if (skb_cow(skb, skb_headroom(skb)) < 0) {
kfree_skb(skb);
@@ -5095,6 +5096,13 @@ static struct sk_buff *skb_reorder_vlan_header(struct sk_buff *skb)
memmove(skb_mac_header(skb) + VLAN_HLEN, skb_mac_header(skb),
mac_len - VLAN_HLEN - ETH_TLEN);
}
+
+ meta_len = skb_metadata_len(skb);
+ if (meta_len) {
+ meta = skb_metadata_end(skb) - meta_len;
+ memmove(meta + VLAN_HLEN, meta, meta_len);
+ }
+
skb->mac_header += VLAN_HLEN;
return skb;
}
diff --git a/net/ipv4/fou.c b/net/ipv4/fou.c
index 79e98e21cdd7..12ce6c526d72 100644
--- a/net/ipv4/fou.c
+++ b/net/ipv4/fou.c
@@ -121,6 +121,7 @@ static int gue_udp_recv(struct sock *sk, struct sk_buff *skb)
struct guehdr *guehdr;
void *data;
u16 doffset = 0;
+ u8 proto_ctype;

if (!fou)
return 1;
@@ -212,13 +213,14 @@ static int gue_udp_recv(struct sock *sk, struct sk_buff *skb)
if (unlikely(guehdr->control))
return gue_control_message(skb, guehdr);

+ proto_ctype = guehdr->proto_ctype;
__skb_pull(skb, sizeof(struct udphdr) + hdrlen);
skb_reset_transport_header(skb);

if (iptunnel_pull_offloads(skb))
goto drop;

- return -guehdr->proto_ctype;
+ return -proto_ctype;

drop:
kfree_skb(skb);
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index e04cdb58a602..25d9bef27d03 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -1185,9 +1185,23 @@ static struct dst_entry *ipv4_dst_check(struct dst_entry *dst, u32 cookie)

static void ipv4_link_failure(struct sk_buff *skb)
{
+ struct ip_options opt;
struct rtable *rt;
+ int res;

- icmp_send(skb, ICMP_DEST_UNREACH, ICMP_HOST_UNREACH, 0);
+ /* Recompile ip options since IPCB may not be valid anymore.
+ */
+ memset(&opt, 0, sizeof(opt));
+ opt.optlen = ip_hdr(skb)->ihl*4 - sizeof(struct iphdr);
+
+ rcu_read_lock();
+ res = __ip_options_compile(dev_net(skb->dev), &opt, skb, NULL);
+ rcu_read_unlock();
+
+ if (res)
+ return;
+
+ __icmp_send(skb, ICMP_DEST_UNREACH, ICMP_HOST_UNREACH, 0, &opt);

rt = skb_rtable(skb);
if (rt)
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 7b1ef897b398..95b2e31fff08 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -402,11 +402,12 @@ static int __tcp_grow_window(const struct sock *sk, const struct sk_buff *skb)
static void tcp_grow_window(struct sock *sk, const struct sk_buff *skb)
{
struct tcp_sock *tp = tcp_sk(sk);
+ int room;
+
+ room = min_t(int, tp->window_clamp, tcp_space(sk)) - tp->rcv_ssthresh;

/* Check #1 */
- if (tp->rcv_ssthresh < tp->window_clamp &&
- (int)tp->rcv_ssthresh < tcp_space(sk) &&
- !tcp_under_memory_pressure(sk)) {
+ if (room > 0 && !tcp_under_memory_pressure(sk)) {
int incr;

/* Check #2. Increase window, if skb with such overhead
@@ -419,8 +420,7 @@ static void tcp_grow_window(struct sock *sk, const struct sk_buff *skb)

if (incr) {
incr = max_t(int, incr, 2 * skb->len);
- tp->rcv_ssthresh = min(tp->rcv_ssthresh + incr,
- tp->window_clamp);
+ tp->rcv_ssthresh += min(room, incr);
inet_csk(sk)->icsk_ack.quick |= 1;
}
}
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 0086acc16f3c..b6a97115a906 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -2336,6 +2336,10 @@ static void __ip6_rt_update_pmtu(struct dst_entry *dst, const struct sock *sk,

rcu_read_lock();
from = rcu_dereference(rt6->from);
+ if (!from) {
+ rcu_read_unlock();
+ return;
+ }
nrt6 = ip6_rt_cache_alloc(from, daddr, saddr);
if (nrt6) {
rt6_do_update_pmtu(nrt6, mtu);
diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h
index 3e0d5922a440..a9c1d6e3cdae 100644
--- a/net/mac80211/driver-ops.h
+++ b/net/mac80211/driver-ops.h
@@ -1166,6 +1166,9 @@ static inline void drv_wake_tx_queue(struct ieee80211_local *local,
{
struct ieee80211_sub_if_data *sdata = vif_to_sdata(txq->txq.vif);

+ if (local->in_reconfig)
+ return;
+
if (!check_sdata_in_driver(sdata))
return;

diff --git a/net/nfc/nci/hci.c b/net/nfc/nci/hci.c
index ddfc52ac1f9b..c0d323b58e73 100644
--- a/net/nfc/nci/hci.c
+++ b/net/nfc/nci/hci.c
@@ -312,6 +312,10 @@ static void nci_hci_cmd_received(struct nci_dev *ndev, u8 pipe,
create_info = (struct nci_hci_create_pipe_resp *)skb->data;
dest_gate = create_info->dest_gate;
new_pipe = create_info->pipe;
+ if (new_pipe >= NCI_HCI_MAX_PIPES) {
+ status = NCI_HCI_ANY_E_NOK;
+ goto exit;
+ }

/* Save the new created pipe and bind with local gate,
* the description for skb->data[3] is destination gate id
@@ -336,6 +340,10 @@ static void nci_hci_cmd_received(struct nci_dev *ndev, u8 pipe,
goto exit;
}
delete_info = (struct nci_hci_delete_pipe_noti *)skb->data;
+ if (delete_info->pipe >= NCI_HCI_MAX_PIPES) {
+ status = NCI_HCI_ANY_E_NOK;
+ goto exit;
+ }

ndev->hci_dev->pipes[delete_info->pipe].gate =
NCI_HCI_INVALID_GATE;
diff --git a/net/sched/sch_cake.c b/net/sched/sch_cake.c
index 73940293700d..7b5ce1343474 100644
--- a/net/sched/sch_cake.c
+++ b/net/sched/sch_cake.c
@@ -1508,32 +1508,29 @@ static unsigned int cake_drop(struct Qdisc *sch, struct sk_buff **to_free)
return idx + (tin << 16);
}

-static void cake_wash_diffserv(struct sk_buff *skb)
-{
- switch (skb->protocol) {
- case htons(ETH_P_IP):
- ipv4_change_dsfield(ip_hdr(skb), INET_ECN_MASK, 0);
- break;
- case htons(ETH_P_IPV6):
- ipv6_change_dsfield(ipv6_hdr(skb), INET_ECN_MASK, 0);
- break;
- default:
- break;
- }
-}
-
static u8 cake_handle_diffserv(struct sk_buff *skb, u16 wash)
{
+ int wlen = skb_network_offset(skb);
u8 dscp;

- switch (skb->protocol) {
+ switch (tc_skb_protocol(skb)) {
case htons(ETH_P_IP):
+ wlen += sizeof(struct iphdr);
+ if (!pskb_may_pull(skb, wlen) ||
+ skb_try_make_writable(skb, wlen))
+ return 0;
+
dscp = ipv4_get_dsfield(ip_hdr(skb)) >> 2;
if (wash && dscp)
ipv4_change_dsfield(ip_hdr(skb), INET_ECN_MASK, 0);
return dscp;

case htons(ETH_P_IPV6):
+ wlen += sizeof(struct ipv6hdr);
+ if (!pskb_may_pull(skb, wlen) ||
+ skb_try_make_writable(skb, wlen))
+ return 0;
+
dscp = ipv6_get_dsfield(ipv6_hdr(skb)) >> 2;
if (wash && dscp)
ipv6_change_dsfield(ipv6_hdr(skb), INET_ECN_MASK, 0);
@@ -1553,25 +1550,27 @@ static struct cake_tin_data *cake_select_tin(struct Qdisc *sch,
{
struct cake_sched_data *q = qdisc_priv(sch);
u32 tin;
+ u8 dscp;
+
+ /* Tin selection: Default to diffserv-based selection, allow overriding
+ * using firewall marks or skb->priority.
+ */
+ dscp = cake_handle_diffserv(skb,
+ q->rate_flags & CAKE_FLAG_WASH);

- if (TC_H_MAJ(skb->priority) == sch->handle &&
- TC_H_MIN(skb->priority) > 0 &&
- TC_H_MIN(skb->priority) <= q->tin_cnt) {
+ if (q->tin_mode == CAKE_DIFFSERV_BESTEFFORT)
+ tin = 0;
+
+ else if (TC_H_MAJ(skb->priority) == sch->handle &&
+ TC_H_MIN(skb->priority) > 0 &&
+ TC_H_MIN(skb->priority) <= q->tin_cnt)
tin = q->tin_order[TC_H_MIN(skb->priority) - 1];

- if (q->rate_flags & CAKE_FLAG_WASH)
- cake_wash_diffserv(skb);
- } else if (q->tin_mode != CAKE_DIFFSERV_BESTEFFORT) {
- /* extract the Diffserv Precedence field, if it exists */
- /* and clear DSCP bits if washing */
- tin = q->tin_index[cake_handle_diffserv(skb,
- q->rate_flags & CAKE_FLAG_WASH)];
+ else {
+ tin = q->tin_index[dscp];
+
if (unlikely(tin >= q->tin_cnt))
tin = 0;
- } else {
- tin = 0;
- if (q->rate_flags & CAKE_FLAG_WASH)
- cake_wash_diffserv(skb);
}

return &q->tins[tin];
diff --git a/net/strparser/strparser.c b/net/strparser/strparser.c
index da1a676860ca..0f4e42792878 100644
--- a/net/strparser/strparser.c
+++ b/net/strparser/strparser.c
@@ -140,13 +140,11 @@ static int __strp_recv(read_descriptor_t *desc, struct sk_buff *orig_skb,
/* We are going to append to the frags_list of head.
* Need to unshare the frag_list.
*/
- if (skb_has_frag_list(head)) {
- err = skb_unclone(head, GFP_ATOMIC);
- if (err) {
- STRP_STATS_INCR(strp->stats.mem_fail);
- desc->error = err;
- return 0;
- }
+ err = skb_unclone(head, GFP_ATOMIC);
+ if (err) {
+ STRP_STATS_INCR(strp->stats.mem_fail);
+ desc->error = err;
+ return 0;
}

if (unlikely(skb_shinfo(head)->frag_list)) {
diff --git a/net/tipc/name_table.c b/net/tipc/name_table.c
index bff241f03525..89993afe0fbd 100644
--- a/net/tipc/name_table.c
+++ b/net/tipc/name_table.c
@@ -909,7 +909,8 @@ static int tipc_nl_service_list(struct net *net, struct tipc_nl_msg *msg,
for (; i < TIPC_NAMETBL_SIZE; i++) {
head = &tn->nametbl->services[i];

- if (*last_type) {
+ if (*last_type ||
+ (!i && *last_key && (*last_lower == *last_key))) {
service = tipc_service_find(net, *last_type);
if (!service)
return -EPIPE;
diff --git a/net/tls/tls_device.c b/net/tls/tls_device.c
index d753e362d2d9..4b5ff3d44912 100644
--- a/net/tls/tls_device.c
+++ b/net/tls/tls_device.c
@@ -52,8 +52,11 @@ static DEFINE_SPINLOCK(tls_device_lock);

static void tls_device_free_ctx(struct tls_context *ctx)
{
- if (ctx->tx_conf == TLS_HW)
+ if (ctx->tx_conf == TLS_HW) {
kfree(tls_offload_ctx_tx(ctx));
+ kfree(ctx->tx.rec_seq);
+ kfree(ctx->tx.iv);
+ }

if (ctx->rx_conf == TLS_HW)
kfree(tls_offload_ctx_rx(ctx));
@@ -216,6 +219,13 @@ void tls_device_sk_destruct(struct sock *sk)
}
EXPORT_SYMBOL(tls_device_sk_destruct);

+void tls_device_free_resources_tx(struct sock *sk)
+{
+ struct tls_context *tls_ctx = tls_get_ctx(sk);
+
+ tls_free_partial_record(sk, tls_ctx);
+}
+
static void tls_append_frag(struct tls_record_info *record,
struct page_frag *pfrag,
int size)
diff --git a/net/tls/tls_main.c b/net/tls/tls_main.c
index 78cb4a584080..96dbac91ac6e 100644
--- a/net/tls/tls_main.c
+++ b/net/tls/tls_main.c
@@ -220,6 +220,26 @@ int tls_push_pending_closed_record(struct sock *sk,
return tls_ctx->push_pending_record(sk, flags);
}

+bool tls_free_partial_record(struct sock *sk, struct tls_context *ctx)
+{
+ struct scatterlist *sg;
+
+ sg = ctx->partially_sent_record;
+ if (!sg)
+ return false;
+
+ while (1) {
+ put_page(sg_page(sg));
+ sk_mem_uncharge(sk, sg->length);
+
+ if (sg_is_last(sg))
+ break;
+ sg++;
+ }
+ ctx->partially_sent_record = NULL;
+ return true;
+}
+
static void tls_write_space(struct sock *sk)
{
struct tls_context *ctx = tls_get_ctx(sk);
@@ -278,6 +298,10 @@ static void tls_sk_proto_close(struct sock *sk, long timeout)
kfree(ctx->tx.rec_seq);
kfree(ctx->tx.iv);
tls_sw_free_resources_tx(sk);
+#ifdef CONFIG_TLS_DEVICE
+ } else if (ctx->tx_conf == TLS_HW) {
+ tls_device_free_resources_tx(sk);
+#endif
}

if (ctx->rx_conf == TLS_SW) {
diff --git a/net/tls/tls_sw.c b/net/tls/tls_sw.c
index bf5b54b513bc..d2d4f7c0d4be 100644
--- a/net/tls/tls_sw.c
+++ b/net/tls/tls_sw.c
@@ -1804,20 +1804,7 @@ void tls_sw_free_resources_tx(struct sock *sk)
/* Free up un-sent records in tx_list. First, free
* the partially sent record if any at head of tx_list.
*/
- if (tls_ctx->partially_sent_record) {
- struct scatterlist *sg = tls_ctx->partially_sent_record;
-
- while (1) {
- put_page(sg_page(sg));
- sk_mem_uncharge(sk, sg->length);
-
- if (sg_is_last(sg))
- break;
- sg++;
- }
-
- tls_ctx->partially_sent_record = NULL;
-
+ if (tls_free_partial_record(sk, tls_ctx)) {
rec = list_first_entry(&ctx->tx_list,
struct tls_rec, list);
list_del(&rec->list);
diff --git a/security/device_cgroup.c b/security/device_cgroup.c
index cd97929fac66..dc28914fa72e 100644
--- a/security/device_cgroup.c
+++ b/security/device_cgroup.c
@@ -560,7 +560,7 @@ static int propagate_exception(struct dev_cgroup *devcg_root,
devcg->behavior == DEVCG_DEFAULT_ALLOW) {
rc = dev_exception_add(devcg, ex);
if (rc)
- break;
+ return rc;
} else {
/*
* in the other possible cases:
diff --git a/sound/core/info.c b/sound/core/info.c
index fe502bc5e6d2..679136fba730 100644
--- a/sound/core/info.c
+++ b/sound/core/info.c
@@ -722,8 +722,11 @@ snd_info_create_entry(const char *name, struct snd_info_entry *parent)
INIT_LIST_HEAD(&entry->children);
INIT_LIST_HEAD(&entry->list);
entry->parent = parent;
- if (parent)
+ if (parent) {
+ mutex_lock(&parent->access);
list_add_tail(&entry->list, &parent->children);
+ mutex_unlock(&parent->access);
+ }
return entry;
}

@@ -805,7 +808,12 @@ void snd_info_free_entry(struct snd_info_entry * entry)
list_for_each_entry_safe(p, n, &entry->children, list)
snd_info_free_entry(p);

- list_del(&entry->list);
+ p = entry->parent;
+ if (p) {
+ mutex_lock(&p->access);
+ list_del(&entry->list);
+ mutex_unlock(&p->access);
+ }
kfree(entry->name);
if (entry->private_free)
entry->private_free(entry);
diff --git a/sound/core/init.c b/sound/core/init.c
index 4849c611c0fe..16b7cc7aa66b 100644
--- a/sound/core/init.c
+++ b/sound/core/init.c
@@ -407,14 +407,7 @@ int snd_card_disconnect(struct snd_card *card)
card->shutdown = 1;
spin_unlock(&card->files_lock);

- /* phase 1: disable fops (user space) operations for ALSA API */
- mutex_lock(&snd_card_mutex);
- snd_cards[card->number] = NULL;
- clear_bit(card->number, snd_cards_lock);
- mutex_unlock(&snd_card_mutex);
-
- /* phase 2: replace file->f_op with special dummy operations */
-
+ /* replace file->f_op with special dummy operations */
spin_lock(&card->files_lock);
list_for_each_entry(mfile, &card->files_list, list) {
/* it's critical part, use endless loop */
@@ -430,7 +423,7 @@ int snd_card_disconnect(struct snd_card *card)
}
spin_unlock(&card->files_lock);

- /* phase 3: notify all connected devices about disconnection */
+ /* notify all connected devices about disconnection */
/* at this point, they cannot respond to any calls except release() */

#if IS_ENABLED(CONFIG_SND_MIXER_OSS)
@@ -446,6 +439,13 @@ int snd_card_disconnect(struct snd_card *card)
device_del(&card->card_dev);
card->registered = false;
}
+
+ /* disable fops (user space) operations for ALSA API */
+ mutex_lock(&snd_card_mutex);
+ snd_cards[card->number] = NULL;
+ clear_bit(card->number, snd_cards_lock);
+ mutex_unlock(&snd_card_mutex);
+
#ifdef CONFIG_PM
wake_up(&card->power_sleep);
#endif
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 84fae0df59e9..f061167062bc 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -7247,6 +7247,8 @@ static const struct snd_hda_pin_quirk alc269_pin_fixup_tbl[] = {
{0x12, 0x90a60140},
{0x14, 0x90170150},
{0x21, 0x02211020}),
+ SND_HDA_PIN_QUIRK(0x10ec0236, 0x1028, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE,
+ {0x21, 0x02211020}),
SND_HDA_PIN_QUIRK(0x10ec0255, 0x1028, "Dell", ALC255_FIXUP_DELL2_MIC_NO_PRESENCE,
{0x14, 0x90170110},
{0x21, 0x02211020}),
@@ -7357,6 +7359,10 @@ static const struct snd_hda_pin_quirk alc269_pin_fixup_tbl[] = {
{0x21, 0x0221101f}),
SND_HDA_PIN_QUIRK(0x10ec0256, 0x1028, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE,
ALC256_STANDARD_PINS),
+ SND_HDA_PIN_QUIRK(0x10ec0256, 0x1028, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE,
+ {0x14, 0x90170110},
+ {0x1b, 0x01011020},
+ {0x21, 0x0221101f}),
SND_HDA_PIN_QUIRK(0x10ec0256, 0x1043, "ASUS", ALC256_FIXUP_ASUS_MIC,
{0x14, 0x90170110},
{0x1b, 0x90a70130},

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