From: "Mike Pagano" <mpagano@gentoo.org>
To: gentoo-commits@lists.gentoo.org
Subject: [gentoo-commits] proj/linux-patches:4.19 commit in: /
Date: Sat, 27 Apr 2019 17:36:50 +0000 (UTC) [thread overview]
Message-ID: <1556386585.9a14f331fb8aa8fdc24e235cd198f4d86616db6e.mpagano@gentoo> (raw)
commit: 9a14f331fb8aa8fdc24e235cd198f4d86616db6e
Author: Mike Pagano <mpagano <AT> gentoo <DOT> org>
AuthorDate: Sat Apr 27 17:36:25 2019 +0000
Commit: Mike Pagano <mpagano <AT> gentoo <DOT> org>
CommitDate: Sat Apr 27 17:36:25 2019 +0000
URL: https://gitweb.gentoo.org/proj/linux-patches.git/commit/?id=9a14f331
Linux patch 4.19.37
Signed-off-by: Mike Pagano <mpagano <AT> gentoo.org>
0000_README | 4 +
1036_linux-4.19.37.patch | 5470 ++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 5474 insertions(+)
diff --git a/0000_README b/0000_README
index 043542a..2acba8b 100644
--- a/0000_README
+++ b/0000_README
@@ -187,6 +187,10 @@ Patch: 1035_linux-4.19.36.patch
From: http://www.kernel.org
Desc: Linux 4.19.36
+Patch: 1036_linux-4.19.37.patch
+From: http://www.kernel.org
+Desc: Linux 4.19.37
+
Patch: 1500_XATTR_USER_PREFIX.patch
From: https://bugs.gentoo.org/show_bug.cgi?id=470644
Desc: Support for namespace user.pax.* on tmpfs.
diff --git a/1036_linux-4.19.37.patch b/1036_linux-4.19.37.patch
new file mode 100644
index 0000000..0a0d611
--- /dev/null
+++ b/1036_linux-4.19.37.patch
@@ -0,0 +1,5470 @@
+diff --git a/Makefile b/Makefile
+index 3fac08f6a11e..7b495cad8c2e 100644
+--- a/Makefile
++++ b/Makefile
+@@ -1,7 +1,7 @@
+ # SPDX-License-Identifier: GPL-2.0
+ VERSION = 4
+ PATCHLEVEL = 19
+-SUBLEVEL = 36
++SUBLEVEL = 37
+ EXTRAVERSION =
+ NAME = "People's Front"
+
+@@ -661,8 +661,7 @@ 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 b447b4db423a..fd1e722f3821 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/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 3e5dd85b019a..263af6312329 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 12453cf7c11b..3dd204d1dd19 100644
+--- a/arch/x86/events/intel/core.c
++++ b/arch/x86/events/intel/core.c
+@@ -3014,7 +3014,7 @@ 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 42a36280d168..05659c7b43d4 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 1e0c4c74195c..e5258bd64200 100644
+--- a/arch/x86/kernel/cpu/bugs.c
++++ b/arch/x86/kernel/cpu/bugs.c
+@@ -272,7 +272,7 @@ 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 },
+@@ -407,7 +407,7 @@ 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 },
+@@ -643,7 +643,7 @@ 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 b0d1e81c96bb..acb901b43ce4 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;
+@@ -759,15 +760,21 @@ __visible __used void *trampoline_handler(struct pt_regs *regs)
+ 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;
+
+ 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 = ®s->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 = ®s->flags;
+ #endif
+ regs->ip = trampoline_address;
+ regs->orig_ax = ~0UL;
+@@ -789,8 +796,25 @@ __visible __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)
+ /*
+@@ -808,6 +832,8 @@ __visible __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) {
+diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
+index 7d31192296a8..b8b08e61ac73 100644
+--- a/arch/x86/kernel/process.c
++++ b/arch/x86/kernel/process.c
+@@ -411,6 +411,8 @@ 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
+@@ -462,10 +464,12 @@ 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 106482da6388..860bd271619d 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 6dc72804fe6e..813cb60eb401 100644
+--- a/arch/x86/kvm/svm.c
++++ b/arch/x86/kvm/svm.c
+@@ -2679,6 +2679,7 @@ 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)) &&
+@@ -2689,6 +2690,8 @@ 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 &
+@@ -4493,14 +4496,25 @@ 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:
+diff --git a/crypto/testmgr.h b/crypto/testmgr.h
+index 862ee1d04263..74e1454cae1e 100644
+--- a/crypto/testmgr.h
++++ b/crypto/testmgr.h
+@@ -5592,7 +5592,49 @@ 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",
++ }
+ };
+
+ /*
+diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c
+index df2175b1169a..925dbc751322 100644
+--- a/drivers/acpi/nfit/core.c
++++ b/drivers/acpi/nfit/core.c
+@@ -1298,19 +1298,30 @@ 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;
+ }
+@@ -2529,7 +2540,10 @@ 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)
+@@ -2539,11 +2553,11 @@ 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)
+@@ -2622,6 +2636,17 @@ 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
+@@ -2960,7 +2985,7 @@ 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) {
+@@ -3034,7 +3059,7 @@ 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;
+@@ -3050,7 +3075,7 @@ 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);
+@@ -3071,6 +3096,7 @@ 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);
+ }
+
+@@ -3105,6 +3131,7 @@ 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:
+@@ -3322,7 +3349,7 @@ 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;
+ }
+@@ -3401,7 +3428,7 @@ 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 02c10de50386..68848fc4b7c9 100644
+--- a/drivers/acpi/nfit/nfit.h
++++ b/drivers/acpi/nfit/nfit.h
+@@ -181,6 +181,13 @@ struct nfit_mem {
+ bool has_lsw;
+ };
+
++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;
+@@ -194,7 +201,6 @@ 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;
+@@ -203,8 +209,7 @@ 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/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c
+index d5f7a12e350e..3fb297b5fb17 100644
+--- a/drivers/char/ipmi/ipmi_msghandler.c
++++ b/drivers/char/ipmi/ipmi_msghandler.c
+@@ -213,6 +213,9 @@ 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)
+@@ -1078,6 +1081,15 @@ 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,
+@@ -1121,6 +1133,8 @@ 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;
+@@ -1183,8 +1197,9 @@ 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_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 e70a0d4d6db4..c963eec58c70 100644
+--- a/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c
++++ b/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c
+@@ -164,6 +164,7 @@ 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/hid/i2c-hid/i2c-hid-dmi-quirks.c b/drivers/hid/i2c-hid/i2c-hid-dmi-quirks.c
+index 1d645c9ab417..cac262a912c1 100644
+--- a/drivers/hid/i2c-hid/i2c-hid-dmi-quirks.c
++++ b/drivers/hid/i2c-hid/i2c-hid-dmi-quirks.c
+@@ -337,7 +337,8 @@ static const struct dmi_system_id i2c_hid_dmi_desc_override_table[] = {
+ DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "FlexBook edge11 - M-FBE11"),
+ },
+ .driver_data = (void *)&sipodev_desc
+- }
++ },
++ { } /* Terminate list */
+ };
+
+
+diff --git a/drivers/iio/accel/kxcjk-1013.c b/drivers/iio/accel/kxcjk-1013.c
+index 471caa5323e4..e5fdca74a630 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 fc9510716ac7..ae2a5097f449 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 e049323f209a..71dd635fce2d 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 7d9bb62baa3f..b2db59812755 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);
+
+@@ -330,6 +344,10 @@ 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;
+@@ -591,8 +609,7 @@ 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;
+@@ -625,10 +642,9 @@ 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;
+@@ -643,7 +659,7 @@ 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;
+
+@@ -676,7 +692,7 @@ 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;
+
+@@ -769,7 +785,7 @@ 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:
+@@ -905,8 +921,28 @@ 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 8b5aad4c32d9..30dc2775cbfb 100644
+--- a/drivers/iio/dac/mcp4725.c
++++ b/drivers/iio/dac/mcp4725.c
+@@ -98,6 +98,7 @@ 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 a062cfddc5af..49d4b4f1a457 100644
+--- a/drivers/iio/industrialio-core.c
++++ b/drivers/iio/industrialio-core.c
+@@ -1735,10 +1735,10 @@ 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/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/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
+index 8dae12b841b3..629860f7327c 100644
+--- a/drivers/mmc/host/sdhci-esdhc-imx.c
++++ b/drivers/mmc/host/sdhci-esdhc-imx.c
+@@ -429,7 +429,7 @@ static u16 esdhc_readw_le(struct sdhci_host *host, int reg)
+ val = readl(host->ioaddr + ESDHC_MIX_CTRL);
+ else if (imx_data->socdata->flags & ESDHC_FLAG_STD_TUNING)
+ /* the std tuning bits is in ACMD12_ERR for imx6sl */
+- val = readl(host->ioaddr + SDHCI_ACMD12_ERR);
++ val = readl(host->ioaddr + SDHCI_AUTO_CMD_STATUS);
+ }
+
+ if (val & ESDHC_MIX_CTRL_EXE_TUNE)
+@@ -494,7 +494,7 @@ static void esdhc_writew_le(struct sdhci_host *host, u16 val, int reg)
+ }
+ writel(new_val , host->ioaddr + ESDHC_MIX_CTRL);
+ } else if (imx_data->socdata->flags & ESDHC_FLAG_STD_TUNING) {
+- u32 v = readl(host->ioaddr + SDHCI_ACMD12_ERR);
++ u32 v = readl(host->ioaddr + SDHCI_AUTO_CMD_STATUS);
+ u32 m = readl(host->ioaddr + ESDHC_MIX_CTRL);
+ if (val & SDHCI_CTRL_TUNED_CLK) {
+ v |= ESDHC_MIX_CTRL_SMPCLK_SEL;
+@@ -512,7 +512,7 @@ static void esdhc_writew_le(struct sdhci_host *host, u16 val, int reg)
+ v &= ~ESDHC_MIX_CTRL_EXE_TUNE;
+ }
+
+- writel(v, host->ioaddr + SDHCI_ACMD12_ERR);
++ writel(v, host->ioaddr + SDHCI_AUTO_CMD_STATUS);
+ writel(m, host->ioaddr + ESDHC_MIX_CTRL);
+ }
+ return;
+@@ -957,9 +957,9 @@ static void esdhc_reset_tuning(struct sdhci_host *host)
+ writel(ctrl, host->ioaddr + ESDHC_MIX_CTRL);
+ writel(0, host->ioaddr + ESDHC_TUNE_CTRL_STATUS);
+ } else if (imx_data->socdata->flags & ESDHC_FLAG_STD_TUNING) {
+- ctrl = readl(host->ioaddr + SDHCI_ACMD12_ERR);
++ ctrl = readl(host->ioaddr + SDHCI_AUTO_CMD_STATUS);
+ ctrl &= ~ESDHC_MIX_CTRL_SMPCLK_SEL;
+- writel(ctrl, host->ioaddr + SDHCI_ACMD12_ERR);
++ writel(ctrl, host->ioaddr + SDHCI_AUTO_CMD_STATUS);
+ }
+ }
+ }
+@@ -1319,7 +1319,7 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev)
+
+ /* clear tuning bits in case ROM has set it already */
+ writel(0x0, host->ioaddr + ESDHC_MIX_CTRL);
+- writel(0x0, host->ioaddr + SDHCI_ACMD12_ERR);
++ writel(0x0, host->ioaddr + SDHCI_AUTO_CMD_STATUS);
+ writel(0x0, host->ioaddr + ESDHC_TUNE_CTRL_STATUS);
+ }
+
+diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
+index 654051e00117..c749d3dc1d36 100644
+--- a/drivers/mmc/host/sdhci.c
++++ b/drivers/mmc/host/sdhci.c
+@@ -82,8 +82,8 @@ void sdhci_dumpregs(struct sdhci_host *host)
+ SDHCI_DUMP("Int enab: 0x%08x | Sig enab: 0x%08x\n",
+ sdhci_readl(host, SDHCI_INT_ENABLE),
+ sdhci_readl(host, SDHCI_SIGNAL_ENABLE));
+- SDHCI_DUMP("AC12 err: 0x%08x | Slot int: 0x%08x\n",
+- sdhci_readw(host, SDHCI_ACMD12_ERR),
++ SDHCI_DUMP("ACmd stat: 0x%08x | Slot int: 0x%08x\n",
++ sdhci_readw(host, SDHCI_AUTO_CMD_STATUS),
+ sdhci_readw(host, SDHCI_SLOT_INT_STATUS));
+ SDHCI_DUMP("Caps: 0x%08x | Caps_1: 0x%08x\n",
+ sdhci_readl(host, SDHCI_CAPABILITIES),
+@@ -841,6 +841,11 @@ static void sdhci_set_transfer_irqs(struct sdhci_host *host)
+ else
+ host->ier = (host->ier & ~dma_irqs) | pio_irqs;
+
++ if (host->flags & (SDHCI_AUTO_CMD23 | SDHCI_AUTO_CMD12))
++ host->ier |= SDHCI_INT_AUTO_CMD_ERR;
++ else
++ host->ier &= ~SDHCI_INT_AUTO_CMD_ERR;
++
+ sdhci_writel(host, host->ier, SDHCI_INT_ENABLE);
+ sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE);
+ }
+@@ -1078,8 +1083,7 @@ static bool sdhci_needs_reset(struct sdhci_host *host, struct mmc_request *mrq)
+ return (!(host->flags & SDHCI_DEVICE_DEAD) &&
+ ((mrq->cmd && mrq->cmd->error) ||
+ (mrq->sbc && mrq->sbc->error) ||
+- (mrq->data && ((mrq->data->error && !mrq->data->stop) ||
+- (mrq->data->stop && mrq->data->stop->error))) ||
++ (mrq->data && mrq->data->stop && mrq->data->stop->error) ||
+ (host->quirks & SDHCI_QUIRK_RESET_AFTER_REQUEST)));
+ }
+
+@@ -1131,6 +1135,16 @@ static void sdhci_finish_data(struct sdhci_host *host)
+ host->data = NULL;
+ host->data_cmd = NULL;
+
++ /*
++ * The controller needs a reset of internal state machines upon error
++ * conditions.
++ */
++ if (data->error) {
++ if (!host->cmd || host->cmd == data_cmd)
++ sdhci_do_reset(host, SDHCI_RESET_CMD);
++ sdhci_do_reset(host, SDHCI_RESET_DATA);
++ }
++
+ if ((host->flags & (SDHCI_REQ_USE_DMA | SDHCI_USE_ADMA)) ==
+ (SDHCI_REQ_USE_DMA | SDHCI_USE_ADMA))
+ sdhci_adma_table_post(host, data);
+@@ -1155,17 +1169,6 @@ static void sdhci_finish_data(struct sdhci_host *host)
+ if (data->stop &&
+ (data->error ||
+ !data->mrq->sbc)) {
+-
+- /*
+- * The controller needs a reset of internal state machines
+- * upon error conditions.
+- */
+- if (data->error) {
+- if (!host->cmd || host->cmd == data_cmd)
+- sdhci_do_reset(host, SDHCI_RESET_CMD);
+- sdhci_do_reset(host, SDHCI_RESET_DATA);
+- }
+-
+ /*
+ * 'cap_cmd_during_tfr' request must not use the command line
+ * after mmc_command_done() has been called. It is upper layer's
+@@ -2642,8 +2645,23 @@ static void sdhci_timeout_data_timer(struct timer_list *t)
+ * *
+ \*****************************************************************************/
+
+-static void sdhci_cmd_irq(struct sdhci_host *host, u32 intmask)
++static void sdhci_cmd_irq(struct sdhci_host *host, u32 intmask, u32 *intmask_p)
+ {
++ /* Handle auto-CMD12 error */
++ if (intmask & SDHCI_INT_AUTO_CMD_ERR && host->data_cmd) {
++ struct mmc_request *mrq = host->data_cmd->mrq;
++ u16 auto_cmd_status = sdhci_readw(host, SDHCI_AUTO_CMD_STATUS);
++ int data_err_bit = (auto_cmd_status & SDHCI_AUTO_CMD_TIMEOUT) ?
++ SDHCI_INT_DATA_TIMEOUT :
++ SDHCI_INT_DATA_CRC;
++
++ /* Treat auto-CMD12 error the same as data error */
++ if (!mrq->sbc && (host->flags & SDHCI_AUTO_CMD12)) {
++ *intmask_p |= data_err_bit;
++ return;
++ }
++ }
++
+ if (!host->cmd) {
+ /*
+ * SDHCI recovers from errors by resetting the cmd and data
+@@ -2665,20 +2683,12 @@ static void sdhci_cmd_irq(struct sdhci_host *host, u32 intmask)
+ else
+ host->cmd->error = -EILSEQ;
+
+- /*
+- * If this command initiates a data phase and a response
+- * CRC error is signalled, the card can start transferring
+- * data - the card may have received the command without
+- * error. We must not terminate the mmc_request early.
+- *
+- * If the card did not receive the command or returned an
+- * error which prevented it sending data, the data phase
+- * will time out.
+- */
++ /* Treat data command CRC error the same as data CRC error */
+ if (host->cmd->data &&
+ (intmask & (SDHCI_INT_CRC | SDHCI_INT_TIMEOUT)) ==
+ SDHCI_INT_CRC) {
+ host->cmd = NULL;
++ *intmask_p |= SDHCI_INT_DATA_CRC;
+ return;
+ }
+
+@@ -2686,6 +2696,21 @@ static void sdhci_cmd_irq(struct sdhci_host *host, u32 intmask)
+ return;
+ }
+
++ /* Handle auto-CMD23 error */
++ if (intmask & SDHCI_INT_AUTO_CMD_ERR) {
++ struct mmc_request *mrq = host->cmd->mrq;
++ u16 auto_cmd_status = sdhci_readw(host, SDHCI_AUTO_CMD_STATUS);
++ int err = (auto_cmd_status & SDHCI_AUTO_CMD_TIMEOUT) ?
++ -ETIMEDOUT :
++ -EILSEQ;
++
++ if (mrq->sbc && (host->flags & SDHCI_AUTO_CMD23)) {
++ mrq->sbc->error = err;
++ sdhci_finish_mrq(host, mrq);
++ return;
++ }
++ }
++
+ if (intmask & SDHCI_INT_RESPONSE)
+ sdhci_finish_command(host);
+ }
+@@ -2906,7 +2931,7 @@ static irqreturn_t sdhci_irq(int irq, void *dev_id)
+ }
+
+ if (intmask & SDHCI_INT_CMD_MASK)
+- sdhci_cmd_irq(host, intmask & SDHCI_INT_CMD_MASK);
++ sdhci_cmd_irq(host, intmask & SDHCI_INT_CMD_MASK, &intmask);
+
+ if (intmask & SDHCI_INT_DATA_MASK)
+ sdhci_data_irq(host, intmask & SDHCI_INT_DATA_MASK);
+diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h
+index f0bd36ce3817..0f8c4f3ccafc 100644
+--- a/drivers/mmc/host/sdhci.h
++++ b/drivers/mmc/host/sdhci.h
+@@ -144,14 +144,15 @@
+ #define SDHCI_INT_DATA_CRC 0x00200000
+ #define SDHCI_INT_DATA_END_BIT 0x00400000
+ #define SDHCI_INT_BUS_POWER 0x00800000
+-#define SDHCI_INT_ACMD12ERR 0x01000000
++#define SDHCI_INT_AUTO_CMD_ERR 0x01000000
+ #define SDHCI_INT_ADMA_ERROR 0x02000000
+
+ #define SDHCI_INT_NORMAL_MASK 0x00007FFF
+ #define SDHCI_INT_ERROR_MASK 0xFFFF8000
+
+ #define SDHCI_INT_CMD_MASK (SDHCI_INT_RESPONSE | SDHCI_INT_TIMEOUT | \
+- SDHCI_INT_CRC | SDHCI_INT_END_BIT | SDHCI_INT_INDEX)
++ SDHCI_INT_CRC | SDHCI_INT_END_BIT | SDHCI_INT_INDEX | \
++ SDHCI_INT_AUTO_CMD_ERR)
+ #define SDHCI_INT_DATA_MASK (SDHCI_INT_DATA_END | SDHCI_INT_DMA_END | \
+ SDHCI_INT_DATA_AVAIL | SDHCI_INT_SPACE_AVAIL | \
+ SDHCI_INT_DATA_TIMEOUT | SDHCI_INT_DATA_CRC | \
+@@ -166,7 +167,11 @@
+
+ #define SDHCI_CQE_INT_MASK (SDHCI_CQE_INT_ERR_MASK | SDHCI_INT_CQE)
+
+-#define SDHCI_ACMD12_ERR 0x3C
++#define SDHCI_AUTO_CMD_STATUS 0x3C
++#define SDHCI_AUTO_CMD_TIMEOUT 0x00000002
++#define SDHCI_AUTO_CMD_CRC 0x00000004
++#define SDHCI_AUTO_CMD_END_BIT 0x00000008
++#define SDHCI_AUTO_CMD_INDEX 0x00000010
+
+ #define SDHCI_HOST_CONTROL2 0x3E
+ #define SDHCI_CTRL_UHS_MASK 0x0007
+diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
+index b2c42cae3081..091b454e83fc 100644
+--- a/drivers/net/bonding/bond_main.c
++++ b/drivers/net/bonding/bond_main.c
+@@ -3198,8 +3198,12 @@ 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 9800738448ec..dca02b35c231 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,
+@@ -1547,6 +1554,15 @@ 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))
+@@ -1795,8 +1811,10 @@ 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/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/netronome/nfp/flower/action.c b/drivers/net/ethernet/netronome/nfp/flower/action.c
+index 7a1e9cd9cc62..777b99416062 100644
+--- a/drivers/net/ethernet/netronome/nfp/flower/action.c
++++ b/drivers/net/ethernet/netronome/nfp/flower/action.c
+@@ -80,8 +80,7 @@ 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 325954b829c8..9b018321e24e 100644
+--- a/drivers/net/ethernet/netronome/nfp/flower/cmsg.h
++++ b/drivers/net/ethernet/netronome/nfp/flower/cmsg.h
+@@ -55,7 +55,7 @@
+ #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)
+@@ -109,7 +109,6 @@
+ #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)
+
+ /* LAG ports */
+diff --git a/drivers/net/ethernet/netronome/nfp/flower/match.c b/drivers/net/ethernet/netronome/nfp/flower/match.c
+index 17acb8cc6044..b99d55cf81f1 100644
+--- a/drivers/net/ethernet/netronome/nfp/flower/match.c
++++ b/drivers/net/ethernet/netronome/nfp/flower/match.c
+@@ -56,14 +56,12 @@ 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 95ee9d815d76..e23eaf3f6d03 100644
+--- a/drivers/net/team/team.c
++++ b/drivers/net/team/team.c
+@@ -1250,6 +1250,23 @@ 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);
+@@ -1266,6 +1283,9 @@ 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);
+
+@@ -1311,6 +1331,12 @@ 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/ralink/rt2x00/rt2x00.h b/drivers/net/wireless/ralink/rt2x00/rt2x00.h
+index a279a4363bc1..1d21424eae8a 100644
+--- a/drivers/net/wireless/ralink/rt2x00/rt2x00.h
++++ b/drivers/net/wireless/ralink/rt2x00/rt2x00.h
+@@ -672,7 +672,6 @@ 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 fa2fd64084ac..da526684596f 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 710e9641552e..85e320178a0e 100644
+--- a/drivers/net/wireless/ralink/rt2x00/rt2x00queue.c
++++ b/drivers/net/wireless/ralink/rt2x00/rt2x00queue.c
+@@ -200,15 +200,18 @@ 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 1797e47fab38..3d51a936f6d5 100644
+--- a/drivers/scsi/libfc/fc_rport.c
++++ b/drivers/scsi/libfc/fc_rport.c
+@@ -2153,7 +2153,6 @@ 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 655790f30434..1fc832751a4f 100644
+--- a/drivers/scsi/scsi_lib.c
++++ b/drivers/scsi/scsi_lib.c
+@@ -2149,8 +2149,12 @@ out_put_budget:
+ 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 df0499fc4802..6857a4bf7297 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 52ad62722996..25a077f4ea94 100644
+--- a/drivers/staging/most/core.c
++++ b/drivers/staging/most/core.c
+@@ -1412,7 +1412,7 @@ 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 cbbf239aea0f..03fe3fb4bff6 100644
+--- a/drivers/tty/serial/sh-sci.c
++++ b/drivers/tty/serial/sh-sci.c
+@@ -2497,14 +2497,16 @@ done:
+ * 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 b9a9a07f1ee9..3e5ec1cee059 100644
+--- a/drivers/tty/vt/vt.c
++++ b/drivers/tty/vt/vt.c
+@@ -1521,7 +1521,8 @@ 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 b214a72d5caa..c163bc15976a 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 80f33582059e..6f227cc781e5 100644
+--- a/fs/cifs/cifsglob.h
++++ b/fs/cifs/cifsglob.h
+@@ -1263,6 +1263,7 @@ 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
+@@ -1763,6 +1764,7 @@ 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 d847132ab027..d6b45682833b 100644
+--- a/fs/cifs/file.c
++++ b/fs/cifs/file.c
+@@ -358,12 +358,30 @@ 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);
+@@ -411,7 +429,8 @@ 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;
+@@ -4170,6 +4189,7 @@ 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 6926685e513c..facc94e159a1 100644
+--- a/fs/cifs/misc.c
++++ b/fs/cifs/misc.c
+@@ -490,8 +490,7 @@ 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);
+@@ -588,6 +587,28 @@ 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 d4d7d61a6fe2..2001184afe70 100644
+--- a/fs/cifs/smb2ops.c
++++ b/fs/cifs/smb2ops.c
+@@ -1906,6 +1906,8 @@ 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 71f32d983384..c6fd3acc5560 100644
+--- a/fs/cifs/smb2pdu.c
++++ b/fs/cifs/smb2pdu.c
+@@ -3273,8 +3273,6 @@ 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) {
+@@ -3293,6 +3291,8 @@ 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)) {
+@@ -3591,7 +3591,6 @@ 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) {
+@@ -3609,6 +3608,7 @@ 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/proc/task_mmu.c b/fs/proc/task_mmu.c
+index d76fe166f6ce..c5819baee35c 100644
+--- a/fs/proc/task_mmu.c
++++ b/fs/proc/task_mmu.c
+@@ -1138,6 +1138,24 @@ 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 d8b8323e80f4..aaca81b5e119 100644
+--- a/fs/userfaultfd.c
++++ b/fs/userfaultfd.c
+@@ -630,6 +630,8 @@ 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;
+@@ -884,6 +886,8 @@ 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();
+@@ -906,6 +910,7 @@ 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:
+@@ -1334,6 +1339,8 @@ 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;
+@@ -1521,6 +1528,8 @@ 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 e909413e4e38..32cae0f35b9d 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 21fef8c5eca7..8c2fec0bcb26 100644
+--- a/include/linux/netdevice.h
++++ b/include/linux/netdevice.h
+@@ -1456,6 +1456,7 @@ 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,
+@@ -1488,6 +1489,7 @@ 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
+@@ -1519,6 +1521,7 @@ 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 aebb370a0006..cebb79fe2c72 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/inet_frag.h b/include/net/inet_frag.h
+index 1662cbc0b46b..b02bf737d019 100644
+--- a/include/net/inet_frag.h
++++ b/include/net/inet_frag.h
+@@ -77,8 +77,8 @@ struct inet_frag_queue {
+ struct timer_list timer;
+ spinlock_t lock;
+ refcount_t refcnt;
+- struct sk_buff *fragments; /* Used in IPv6. */
+- struct rb_root rb_fragments; /* Used in IPv4. */
++ struct sk_buff *fragments; /* used in 6lopwpan IPv6. */
++ struct rb_root rb_fragments; /* Used in IPv4/IPv6. */
+ struct sk_buff *fragments_tail;
+ struct sk_buff *last_run_head;
+ ktime_t stamp;
+@@ -153,4 +153,16 @@ static inline void add_frag_mem_limit(struct netns_frags *nf, long val)
+
+ extern const u8 ip_frag_ecn_table[16];
+
++/* Return values of inet_frag_queue_insert() */
++#define IPFRAG_OK 0
++#define IPFRAG_DUP 1
++#define IPFRAG_OVERLAP 2
++int inet_frag_queue_insert(struct inet_frag_queue *q, struct sk_buff *skb,
++ int offset, int end);
++void *inet_frag_reasm_prepare(struct inet_frag_queue *q, struct sk_buff *skb,
++ struct sk_buff *parent);
++void inet_frag_reasm_finish(struct inet_frag_queue *q, struct sk_buff *head,
++ void *reasm_data);
++struct sk_buff *inet_frag_pull_head(struct inet_frag_queue *q);
++
+ #endif
+diff --git a/include/net/ipv6_frag.h b/include/net/ipv6_frag.h
+index 6ced1e6899b6..28aa9b30aece 100644
+--- a/include/net/ipv6_frag.h
++++ b/include/net/ipv6_frag.h
+@@ -82,8 +82,15 @@ ip6frag_expire_frag_queue(struct net *net, struct frag_queue *fq)
+ __IP6_INC_STATS(net, __in6_dev_get(dev), IPSTATS_MIB_REASMTIMEOUT);
+
+ /* Don't send error if the first segment did not arrive. */
+- head = fq->q.fragments;
+- if (!(fq->q.flags & INET_FRAG_FIRST_IN) || !head)
++ if (!(fq->q.flags & INET_FRAG_FIRST_IN))
++ goto out;
++
++ /* sk_buff::dev and sk_buff::rbnode are unionized. So we
++ * pull the head out of the tree in order to be able to
++ * deal with head->dev.
++ */
++ head = inet_frag_pull_head(&fq->q);
++ if (!head)
+ goto out;
+
+ head->dev = dev;
+diff --git a/include/net/tls.h b/include/net/tls.h
+index 0a769cf2f5f3..c423b7d0b6ab 100644
+--- a/include/net/tls.h
++++ b/include/net/tls.h
+@@ -317,7 +317,7 @@ 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/kprobes.c b/kernel/kprobes.c
+index 4344381664cc..29ff6635d259 100644
+--- a/kernel/kprobes.c
++++ b/kernel/kprobes.c
+@@ -703,7 +703,6 @@ static void unoptimize_kprobe(struct kprobe *p, bool force)
+ static int reuse_unused_kprobe(struct kprobe *ap)
+ {
+ struct optimized_kprobe *op;
+- int ret;
+
+ BUG_ON(!kprobe_unused(ap));
+ /*
+@@ -715,9 +714,8 @@ 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/locking/lockdep.c b/kernel/locking/lockdep.c
+index 0cbdbbb0729f..26b57e24476f 100644
+--- a/kernel/locking/lockdep.c
++++ b/kernel/locking/lockdep.c
+@@ -3567,9 +3567,6 @@ __lock_set_class(struct lockdep_map *lock, const char *name,
+ unsigned int depth;
+ int i;
+
+- if (unlikely(!debug_locks))
+- return 0;
+-
+ depth = curr->lockdep_depth;
+ /*
+ * This function is about (re)setting the class of a held lock,
+diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
+index 640094391169..4aa8e7d90c25 100644
+--- a/kernel/sched/fair.c
++++ b/kernel/sched/fair.c
+@@ -4847,12 +4847,15 @@ 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 (;;) {
+@@ -4860,6 +4863,28 @@ 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 9e22660153ff..9a85c7ae7362 100644
+--- a/kernel/sysctl.c
++++ b/kernel/sysctl.c
+@@ -125,6 +125,7 @@ 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;
+@@ -1696,7 +1697,7 @@ 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 cbc72c2c1fca..78eb05aa8003 100644
+--- a/kernel/time/sched_clock.c
++++ b/kernel/time/sched_clock.c
+@@ -275,7 +275,7 @@ 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];
+
+@@ -286,7 +286,7 @@ 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 14de3727b18e..a02e0f6b287c 100644
+--- a/kernel/time/tick-common.c
++++ b/kernel/time/tick-common.c
+@@ -491,6 +491,7 @@ 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();
+@@ -514,6 +515,7 @@ 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 e23eb9fc77aa..1688782f3dfb 100644
+--- a/kernel/trace/ftrace.c
++++ b/kernel/trace/ftrace.c
+@@ -34,6 +34,7 @@
+ #include <linux/list.h>
+ #include <linux/hash.h>
+ #include <linux/rcupdate.h>
++#include <linux/kprobes.h>
+
+ #include <trace/events/sched.h>
+
+@@ -6250,7 +6251,7 @@ 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)
+ {
+@@ -6310,11 +6311,13 @@ 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
+
+ /*
+@@ -6341,6 +6344,7 @@ 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 43507f7e66b4..1480880ff814 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>
+@@ -2491,7 +2492,8 @@ 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);
+@@ -2517,6 +2519,9 @@ 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 4b90682623e9..41e58f3d8fbf 100644
+--- a/mm/percpu.c
++++ b/mm/percpu.c
+@@ -2529,8 +2529,8 @@ 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);
+@@ -2651,8 +2651,8 @@ 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 2878dc4e9af6..4a387937f9f5 100644
+--- a/mm/vmstat.c
++++ b/mm/vmstat.c
+@@ -1272,13 +1272,8 @@ 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 72074276c088..fed0ff446abb 100644
+--- a/net/bridge/br_input.c
++++ b/net/bridge/br_input.c
+@@ -195,13 +195,10 @@ 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;
+ }
+
+ /*
+@@ -278,10 +275,18 @@ 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 20ed7adcf1cc..75901c4641b1 100644
+--- a/net/bridge/br_multicast.c
++++ b/net/bridge/br_multicast.c
+@@ -2152,7 +2152,8 @@ 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;
+@@ -2164,6 +2165,7 @@ 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/core/dev.c b/net/core/dev.c
+index d47554307a6d..3bcec116a5f2 100644
+--- a/net/core/dev.c
++++ b/net/core/dev.c
+@@ -1180,7 +1180,21 @@ 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 ceee28e184af..8b5768113acd 100644
+--- a/net/core/skbuff.c
++++ b/net/core/skbuff.c
+@@ -5071,7 +5071,8 @@ 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);
+@@ -5083,6 +5084,13 @@ 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 500a59906b87..854ff1e4c41f 100644
+--- a/net/ipv4/fou.c
++++ b/net/ipv4/fou.c
+@@ -120,6 +120,7 @@ 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;
+@@ -211,13 +212,14 @@ 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/inet_fragment.c b/net/ipv4/inet_fragment.c
+index 760a9e52e02b..9f69411251d0 100644
+--- a/net/ipv4/inet_fragment.c
++++ b/net/ipv4/inet_fragment.c
+@@ -25,6 +25,62 @@
+ #include <net/sock.h>
+ #include <net/inet_frag.h>
+ #include <net/inet_ecn.h>
++#include <net/ip.h>
++#include <net/ipv6.h>
++
++/* Use skb->cb to track consecutive/adjacent fragments coming at
++ * the end of the queue. Nodes in the rb-tree queue will
++ * contain "runs" of one or more adjacent fragments.
++ *
++ * Invariants:
++ * - next_frag is NULL at the tail of a "run";
++ * - the head of a "run" has the sum of all fragment lengths in frag_run_len.
++ */
++struct ipfrag_skb_cb {
++ union {
++ struct inet_skb_parm h4;
++ struct inet6_skb_parm h6;
++ };
++ struct sk_buff *next_frag;
++ int frag_run_len;
++};
++
++#define FRAG_CB(skb) ((struct ipfrag_skb_cb *)((skb)->cb))
++
++static void fragcb_clear(struct sk_buff *skb)
++{
++ RB_CLEAR_NODE(&skb->rbnode);
++ FRAG_CB(skb)->next_frag = NULL;
++ FRAG_CB(skb)->frag_run_len = skb->len;
++}
++
++/* Append skb to the last "run". */
++static void fragrun_append_to_last(struct inet_frag_queue *q,
++ struct sk_buff *skb)
++{
++ fragcb_clear(skb);
++
++ FRAG_CB(q->last_run_head)->frag_run_len += skb->len;
++ FRAG_CB(q->fragments_tail)->next_frag = skb;
++ q->fragments_tail = skb;
++}
++
++/* Create a new "run" with the skb. */
++static void fragrun_create(struct inet_frag_queue *q, struct sk_buff *skb)
++{
++ BUILD_BUG_ON(sizeof(struct ipfrag_skb_cb) > sizeof(skb->cb));
++ fragcb_clear(skb);
++
++ if (q->last_run_head)
++ rb_link_node(&skb->rbnode, &q->last_run_head->rbnode,
++ &q->last_run_head->rbnode.rb_right);
++ else
++ rb_link_node(&skb->rbnode, NULL, &q->rb_fragments.rb_node);
++ rb_insert_color(&skb->rbnode, &q->rb_fragments);
++
++ q->fragments_tail = skb;
++ q->last_run_head = skb;
++}
+
+ /* Given the OR values of all fragments, apply RFC 3168 5.3 requirements
+ * Value : 0xff if frame should be dropped.
+@@ -123,6 +179,28 @@ static void inet_frag_destroy_rcu(struct rcu_head *head)
+ kmem_cache_free(f->frags_cachep, q);
+ }
+
++unsigned int inet_frag_rbtree_purge(struct rb_root *root)
++{
++ struct rb_node *p = rb_first(root);
++ unsigned int sum = 0;
++
++ while (p) {
++ struct sk_buff *skb = rb_entry(p, struct sk_buff, rbnode);
++
++ p = rb_next(p);
++ rb_erase(&skb->rbnode, root);
++ while (skb) {
++ struct sk_buff *next = FRAG_CB(skb)->next_frag;
++
++ sum += skb->truesize;
++ kfree_skb(skb);
++ skb = next;
++ }
++ }
++ return sum;
++}
++EXPORT_SYMBOL(inet_frag_rbtree_purge);
++
+ void inet_frag_destroy(struct inet_frag_queue *q)
+ {
+ struct sk_buff *fp;
+@@ -224,3 +302,218 @@ struct inet_frag_queue *inet_frag_find(struct netns_frags *nf, void *key)
+ return fq;
+ }
+ EXPORT_SYMBOL(inet_frag_find);
++
++int inet_frag_queue_insert(struct inet_frag_queue *q, struct sk_buff *skb,
++ int offset, int end)
++{
++ struct sk_buff *last = q->fragments_tail;
++
++ /* RFC5722, Section 4, amended by Errata ID : 3089
++ * When reassembling an IPv6 datagram, if
++ * one or more its constituent fragments is determined to be an
++ * overlapping fragment, the entire datagram (and any constituent
++ * fragments) MUST be silently discarded.
++ *
++ * Duplicates, however, should be ignored (i.e. skb dropped, but the
++ * queue/fragments kept for later reassembly).
++ */
++ if (!last)
++ fragrun_create(q, skb); /* First fragment. */
++ else if (last->ip_defrag_offset + last->len < end) {
++ /* This is the common case: skb goes to the end. */
++ /* Detect and discard overlaps. */
++ if (offset < last->ip_defrag_offset + last->len)
++ return IPFRAG_OVERLAP;
++ if (offset == last->ip_defrag_offset + last->len)
++ fragrun_append_to_last(q, skb);
++ else
++ fragrun_create(q, skb);
++ } else {
++ /* Binary search. Note that skb can become the first fragment,
++ * but not the last (covered above).
++ */
++ struct rb_node **rbn, *parent;
++
++ rbn = &q->rb_fragments.rb_node;
++ do {
++ struct sk_buff *curr;
++ int curr_run_end;
++
++ parent = *rbn;
++ curr = rb_to_skb(parent);
++ curr_run_end = curr->ip_defrag_offset +
++ FRAG_CB(curr)->frag_run_len;
++ if (end <= curr->ip_defrag_offset)
++ rbn = &parent->rb_left;
++ else if (offset >= curr_run_end)
++ rbn = &parent->rb_right;
++ else if (offset >= curr->ip_defrag_offset &&
++ end <= curr_run_end)
++ return IPFRAG_DUP;
++ else
++ return IPFRAG_OVERLAP;
++ } while (*rbn);
++ /* Here we have parent properly set, and rbn pointing to
++ * one of its NULL left/right children. Insert skb.
++ */
++ fragcb_clear(skb);
++ rb_link_node(&skb->rbnode, parent, rbn);
++ rb_insert_color(&skb->rbnode, &q->rb_fragments);
++ }
++
++ skb->ip_defrag_offset = offset;
++
++ return IPFRAG_OK;
++}
++EXPORT_SYMBOL(inet_frag_queue_insert);
++
++void *inet_frag_reasm_prepare(struct inet_frag_queue *q, struct sk_buff *skb,
++ struct sk_buff *parent)
++{
++ struct sk_buff *fp, *head = skb_rb_first(&q->rb_fragments);
++ struct sk_buff **nextp;
++ int delta;
++
++ if (head != skb) {
++ fp = skb_clone(skb, GFP_ATOMIC);
++ if (!fp)
++ return NULL;
++ FRAG_CB(fp)->next_frag = FRAG_CB(skb)->next_frag;
++ if (RB_EMPTY_NODE(&skb->rbnode))
++ FRAG_CB(parent)->next_frag = fp;
++ else
++ rb_replace_node(&skb->rbnode, &fp->rbnode,
++ &q->rb_fragments);
++ if (q->fragments_tail == skb)
++ q->fragments_tail = fp;
++ skb_morph(skb, head);
++ FRAG_CB(skb)->next_frag = FRAG_CB(head)->next_frag;
++ rb_replace_node(&head->rbnode, &skb->rbnode,
++ &q->rb_fragments);
++ consume_skb(head);
++ head = skb;
++ }
++ WARN_ON(head->ip_defrag_offset != 0);
++
++ delta = -head->truesize;
++
++ /* Head of list must not be cloned. */
++ if (skb_unclone(head, GFP_ATOMIC))
++ return NULL;
++
++ delta += head->truesize;
++ if (delta)
++ add_frag_mem_limit(q->net, delta);
++
++ /* If the first fragment is fragmented itself, we split
++ * it to two chunks: the first with data and paged part
++ * and the second, holding only fragments.
++ */
++ if (skb_has_frag_list(head)) {
++ struct sk_buff *clone;
++ int i, plen = 0;
++
++ clone = alloc_skb(0, GFP_ATOMIC);
++ if (!clone)
++ return NULL;
++ skb_shinfo(clone)->frag_list = skb_shinfo(head)->frag_list;
++ skb_frag_list_init(head);
++ for (i = 0; i < skb_shinfo(head)->nr_frags; i++)
++ plen += skb_frag_size(&skb_shinfo(head)->frags[i]);
++ clone->data_len = head->data_len - plen;
++ clone->len = clone->data_len;
++ head->truesize += clone->truesize;
++ clone->csum = 0;
++ clone->ip_summed = head->ip_summed;
++ add_frag_mem_limit(q->net, clone->truesize);
++ skb_shinfo(head)->frag_list = clone;
++ nextp = &clone->next;
++ } else {
++ nextp = &skb_shinfo(head)->frag_list;
++ }
++
++ return nextp;
++}
++EXPORT_SYMBOL(inet_frag_reasm_prepare);
++
++void inet_frag_reasm_finish(struct inet_frag_queue *q, struct sk_buff *head,
++ void *reasm_data)
++{
++ struct sk_buff **nextp = (struct sk_buff **)reasm_data;
++ struct rb_node *rbn;
++ struct sk_buff *fp;
++
++ skb_push(head, head->data - skb_network_header(head));
++
++ /* Traverse the tree in order, to build frag_list. */
++ fp = FRAG_CB(head)->next_frag;
++ rbn = rb_next(&head->rbnode);
++ rb_erase(&head->rbnode, &q->rb_fragments);
++ while (rbn || fp) {
++ /* fp points to the next sk_buff in the current run;
++ * rbn points to the next run.
++ */
++ /* Go through the current run. */
++ while (fp) {
++ *nextp = fp;
++ nextp = &fp->next;
++ fp->prev = NULL;
++ memset(&fp->rbnode, 0, sizeof(fp->rbnode));
++ fp->sk = NULL;
++ head->data_len += fp->len;
++ head->len += fp->len;
++ if (head->ip_summed != fp->ip_summed)
++ head->ip_summed = CHECKSUM_NONE;
++ else if (head->ip_summed == CHECKSUM_COMPLETE)
++ head->csum = csum_add(head->csum, fp->csum);
++ head->truesize += fp->truesize;
++ fp = FRAG_CB(fp)->next_frag;
++ }
++ /* Move to the next run. */
++ if (rbn) {
++ struct rb_node *rbnext = rb_next(rbn);
++
++ fp = rb_to_skb(rbn);
++ rb_erase(rbn, &q->rb_fragments);
++ rbn = rbnext;
++ }
++ }
++ sub_frag_mem_limit(q->net, head->truesize);
++
++ *nextp = NULL;
++ skb_mark_not_on_list(head);
++ head->prev = NULL;
++ head->tstamp = q->stamp;
++}
++EXPORT_SYMBOL(inet_frag_reasm_finish);
++
++struct sk_buff *inet_frag_pull_head(struct inet_frag_queue *q)
++{
++ struct sk_buff *head;
++
++ if (q->fragments) {
++ head = q->fragments;
++ q->fragments = head->next;
++ } else {
++ struct sk_buff *skb;
++
++ head = skb_rb_first(&q->rb_fragments);
++ if (!head)
++ return NULL;
++ skb = FRAG_CB(head)->next_frag;
++ if (skb)
++ rb_replace_node(&head->rbnode, &skb->rbnode,
++ &q->rb_fragments);
++ else
++ rb_erase(&head->rbnode, &q->rb_fragments);
++ memset(&head->rbnode, 0, sizeof(head->rbnode));
++ barrier();
++ }
++ if (head == q->fragments_tail)
++ q->fragments_tail = NULL;
++
++ sub_frag_mem_limit(q->net, head->truesize);
++
++ return head;
++}
++EXPORT_SYMBOL(inet_frag_pull_head);
+diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c
+index d95b32af4a0e..5a1d39e32196 100644
+--- a/net/ipv4/ip_fragment.c
++++ b/net/ipv4/ip_fragment.c
+@@ -57,57 +57,6 @@
+ */
+ static const char ip_frag_cache_name[] = "ip4-frags";
+
+-/* Use skb->cb to track consecutive/adjacent fragments coming at
+- * the end of the queue. Nodes in the rb-tree queue will
+- * contain "runs" of one or more adjacent fragments.
+- *
+- * Invariants:
+- * - next_frag is NULL at the tail of a "run";
+- * - the head of a "run" has the sum of all fragment lengths in frag_run_len.
+- */
+-struct ipfrag_skb_cb {
+- struct inet_skb_parm h;
+- struct sk_buff *next_frag;
+- int frag_run_len;
+-};
+-
+-#define FRAG_CB(skb) ((struct ipfrag_skb_cb *)((skb)->cb))
+-
+-static void ip4_frag_init_run(struct sk_buff *skb)
+-{
+- BUILD_BUG_ON(sizeof(struct ipfrag_skb_cb) > sizeof(skb->cb));
+-
+- FRAG_CB(skb)->next_frag = NULL;
+- FRAG_CB(skb)->frag_run_len = skb->len;
+-}
+-
+-/* Append skb to the last "run". */
+-static void ip4_frag_append_to_last_run(struct inet_frag_queue *q,
+- struct sk_buff *skb)
+-{
+- RB_CLEAR_NODE(&skb->rbnode);
+- FRAG_CB(skb)->next_frag = NULL;
+-
+- FRAG_CB(q->last_run_head)->frag_run_len += skb->len;
+- FRAG_CB(q->fragments_tail)->next_frag = skb;
+- q->fragments_tail = skb;
+-}
+-
+-/* Create a new "run" with the skb. */
+-static void ip4_frag_create_run(struct inet_frag_queue *q, struct sk_buff *skb)
+-{
+- if (q->last_run_head)
+- rb_link_node(&skb->rbnode, &q->last_run_head->rbnode,
+- &q->last_run_head->rbnode.rb_right);
+- else
+- rb_link_node(&skb->rbnode, NULL, &q->rb_fragments.rb_node);
+- rb_insert_color(&skb->rbnode, &q->rb_fragments);
+-
+- ip4_frag_init_run(skb);
+- q->fragments_tail = skb;
+- q->last_run_head = skb;
+-}
+-
+ /* Describe an entry in the "incomplete datagrams" queue. */
+ struct ipq {
+ struct inet_frag_queue q;
+@@ -212,27 +161,9 @@ static void ip_expire(struct timer_list *t)
+ * pull the head out of the tree in order to be able to
+ * deal with head->dev.
+ */
+- if (qp->q.fragments) {
+- head = qp->q.fragments;
+- qp->q.fragments = head->next;
+- } else {
+- head = skb_rb_first(&qp->q.rb_fragments);
+- if (!head)
+- goto out;
+- if (FRAG_CB(head)->next_frag)
+- rb_replace_node(&head->rbnode,
+- &FRAG_CB(head)->next_frag->rbnode,
+- &qp->q.rb_fragments);
+- else
+- rb_erase(&head->rbnode, &qp->q.rb_fragments);
+- memset(&head->rbnode, 0, sizeof(head->rbnode));
+- barrier();
+- }
+- if (head == qp->q.fragments_tail)
+- qp->q.fragments_tail = NULL;
+-
+- sub_frag_mem_limit(qp->q.net, head->truesize);
+-
++ head = inet_frag_pull_head(&qp->q);
++ if (!head)
++ goto out;
+ head->dev = dev_get_by_index_rcu(net, qp->iif);
+ if (!head->dev)
+ goto out;
+@@ -345,12 +276,10 @@ static int ip_frag_reinit(struct ipq *qp)
+ static int ip_frag_queue(struct ipq *qp, struct sk_buff *skb)
+ {
+ struct net *net = container_of(qp->q.net, struct net, ipv4.frags);
+- struct rb_node **rbn, *parent;
+- struct sk_buff *skb1, *prev_tail;
+- int ihl, end, skb1_run_end;
++ int ihl, end, flags, offset;
++ struct sk_buff *prev_tail;
+ struct net_device *dev;
+ unsigned int fragsize;
+- int flags, offset;
+ int err = -ENOENT;
+ u8 ecn;
+
+@@ -382,7 +311,7 @@ static int ip_frag_queue(struct ipq *qp, struct sk_buff *skb)
+ */
+ if (end < qp->q.len ||
+ ((qp->q.flags & INET_FRAG_LAST_IN) && end != qp->q.len))
+- goto err;
++ goto discard_qp;
+ qp->q.flags |= INET_FRAG_LAST_IN;
+ qp->q.len = end;
+ } else {
+@@ -394,82 +323,33 @@ static int ip_frag_queue(struct ipq *qp, struct sk_buff *skb)
+ if (end > qp->q.len) {
+ /* Some bits beyond end -> corruption. */
+ if (qp->q.flags & INET_FRAG_LAST_IN)
+- goto err;
++ goto discard_qp;
+ qp->q.len = end;
+ }
+ }
+ if (end == offset)
+- goto err;
++ goto discard_qp;
+
+ err = -ENOMEM;
+ if (!pskb_pull(skb, skb_network_offset(skb) + ihl))
+- goto err;
++ goto discard_qp;
+
+ err = pskb_trim_rcsum(skb, end - offset);
+ if (err)
+- goto err;
++ goto discard_qp;
+
+ /* Note : skb->rbnode and skb->dev share the same location. */
+ dev = skb->dev;
+ /* Makes sure compiler wont do silly aliasing games */
+ barrier();
+
+- /* RFC5722, Section 4, amended by Errata ID : 3089
+- * When reassembling an IPv6 datagram, if
+- * one or more its constituent fragments is determined to be an
+- * overlapping fragment, the entire datagram (and any constituent
+- * fragments) MUST be silently discarded.
+- *
+- * We do the same here for IPv4 (and increment an snmp counter) but
+- * we do not want to drop the whole queue in response to a duplicate
+- * fragment.
+- */
+-
+- err = -EINVAL;
+- /* Find out where to put this fragment. */
+ prev_tail = qp->q.fragments_tail;
+- if (!prev_tail)
+- ip4_frag_create_run(&qp->q, skb); /* First fragment. */
+- else if (prev_tail->ip_defrag_offset + prev_tail->len < end) {
+- /* This is the common case: skb goes to the end. */
+- /* Detect and discard overlaps. */
+- if (offset < prev_tail->ip_defrag_offset + prev_tail->len)
+- goto discard_qp;
+- if (offset == prev_tail->ip_defrag_offset + prev_tail->len)
+- ip4_frag_append_to_last_run(&qp->q, skb);
+- else
+- ip4_frag_create_run(&qp->q, skb);
+- } else {
+- /* Binary search. Note that skb can become the first fragment,
+- * but not the last (covered above).
+- */
+- rbn = &qp->q.rb_fragments.rb_node;
+- do {
+- parent = *rbn;
+- skb1 = rb_to_skb(parent);
+- skb1_run_end = skb1->ip_defrag_offset +
+- FRAG_CB(skb1)->frag_run_len;
+- if (end <= skb1->ip_defrag_offset)
+- rbn = &parent->rb_left;
+- else if (offset >= skb1_run_end)
+- rbn = &parent->rb_right;
+- else if (offset >= skb1->ip_defrag_offset &&
+- end <= skb1_run_end)
+- goto err; /* No new data, potential duplicate */
+- else
+- goto discard_qp; /* Found an overlap */
+- } while (*rbn);
+- /* Here we have parent properly set, and rbn pointing to
+- * one of its NULL left/right children. Insert skb.
+- */
+- ip4_frag_init_run(skb);
+- rb_link_node(&skb->rbnode, parent, rbn);
+- rb_insert_color(&skb->rbnode, &qp->q.rb_fragments);
+- }
++ err = inet_frag_queue_insert(&qp->q, skb, offset, end);
++ if (err)
++ goto insert_error;
+
+ if (dev)
+ qp->iif = dev->ifindex;
+- skb->ip_defrag_offset = offset;
+
+ qp->q.stamp = skb->tstamp;
+ qp->q.meat += skb->len;
+@@ -494,15 +374,24 @@ static int ip_frag_queue(struct ipq *qp, struct sk_buff *skb)
+ skb->_skb_refdst = 0UL;
+ err = ip_frag_reasm(qp, skb, prev_tail, dev);
+ skb->_skb_refdst = orefdst;
++ if (err)
++ inet_frag_kill(&qp->q);
+ return err;
+ }
+
+ skb_dst_drop(skb);
+ return -EINPROGRESS;
+
++insert_error:
++ if (err == IPFRAG_DUP) {
++ kfree_skb(skb);
++ return -EINVAL;
++ }
++ err = -EINVAL;
++ __IP_INC_STATS(net, IPSTATS_MIB_REASM_OVERLAPS);
+ discard_qp:
+ inet_frag_kill(&qp->q);
+- __IP_INC_STATS(net, IPSTATS_MIB_REASM_OVERLAPS);
++ __IP_INC_STATS(net, IPSTATS_MIB_REASMFAILS);
+ err:
+ kfree_skb(skb);
+ return err;
+@@ -514,13 +403,8 @@ static int ip_frag_reasm(struct ipq *qp, struct sk_buff *skb,
+ {
+ struct net *net = container_of(qp->q.net, struct net, ipv4.frags);
+ struct iphdr *iph;
+- struct sk_buff *fp, *head = skb_rb_first(&qp->q.rb_fragments);
+- struct sk_buff **nextp; /* To build frag_list. */
+- struct rb_node *rbn;
+- int len;
+- int ihlen;
+- int delta;
+- int err;
++ void *reasm_data;
++ int len, err;
+ u8 ecn;
+
+ ipq_kill(qp);
+@@ -530,117 +414,23 @@ static int ip_frag_reasm(struct ipq *qp, struct sk_buff *skb,
+ err = -EINVAL;
+ goto out_fail;
+ }
+- /* Make the one we just received the head. */
+- if (head != skb) {
+- fp = skb_clone(skb, GFP_ATOMIC);
+- if (!fp)
+- goto out_nomem;
+- FRAG_CB(fp)->next_frag = FRAG_CB(skb)->next_frag;
+- if (RB_EMPTY_NODE(&skb->rbnode))
+- FRAG_CB(prev_tail)->next_frag = fp;
+- else
+- rb_replace_node(&skb->rbnode, &fp->rbnode,
+- &qp->q.rb_fragments);
+- if (qp->q.fragments_tail == skb)
+- qp->q.fragments_tail = fp;
+- skb_morph(skb, head);
+- FRAG_CB(skb)->next_frag = FRAG_CB(head)->next_frag;
+- rb_replace_node(&head->rbnode, &skb->rbnode,
+- &qp->q.rb_fragments);
+- consume_skb(head);
+- head = skb;
+- }
+
+- WARN_ON(head->ip_defrag_offset != 0);
+-
+- /* Allocate a new buffer for the datagram. */
+- ihlen = ip_hdrlen(head);
+- len = ihlen + qp->q.len;
++ /* Make the one we just received the head. */
++ reasm_data = inet_frag_reasm_prepare(&qp->q, skb, prev_tail);
++ if (!reasm_data)
++ goto out_nomem;
+
++ len = ip_hdrlen(skb) + qp->q.len;
+ err = -E2BIG;
+ if (len > 65535)
+ goto out_oversize;
+
+- delta = - head->truesize;
+-
+- /* Head of list must not be cloned. */
+- if (skb_unclone(head, GFP_ATOMIC))
+- goto out_nomem;
+-
+- delta += head->truesize;
+- if (delta)
+- add_frag_mem_limit(qp->q.net, delta);
+-
+- /* If the first fragment is fragmented itself, we split
+- * it to two chunks: the first with data and paged part
+- * and the second, holding only fragments. */
+- if (skb_has_frag_list(head)) {
+- struct sk_buff *clone;
+- int i, plen = 0;
+-
+- clone = alloc_skb(0, GFP_ATOMIC);
+- if (!clone)
+- goto out_nomem;
+- skb_shinfo(clone)->frag_list = skb_shinfo(head)->frag_list;
+- skb_frag_list_init(head);
+- for (i = 0; i < skb_shinfo(head)->nr_frags; i++)
+- plen += skb_frag_size(&skb_shinfo(head)->frags[i]);
+- clone->len = clone->data_len = head->data_len - plen;
+- head->truesize += clone->truesize;
+- clone->csum = 0;
+- clone->ip_summed = head->ip_summed;
+- add_frag_mem_limit(qp->q.net, clone->truesize);
+- skb_shinfo(head)->frag_list = clone;
+- nextp = &clone->next;
+- } else {
+- nextp = &skb_shinfo(head)->frag_list;
+- }
++ inet_frag_reasm_finish(&qp->q, skb, reasm_data);
+
+- skb_push(head, head->data - skb_network_header(head));
++ skb->dev = dev;
++ IPCB(skb)->frag_max_size = max(qp->max_df_size, qp->q.max_size);
+
+- /* Traverse the tree in order, to build frag_list. */
+- fp = FRAG_CB(head)->next_frag;
+- rbn = rb_next(&head->rbnode);
+- rb_erase(&head->rbnode, &qp->q.rb_fragments);
+- while (rbn || fp) {
+- /* fp points to the next sk_buff in the current run;
+- * rbn points to the next run.
+- */
+- /* Go through the current run. */
+- while (fp) {
+- *nextp = fp;
+- nextp = &fp->next;
+- fp->prev = NULL;
+- memset(&fp->rbnode, 0, sizeof(fp->rbnode));
+- fp->sk = NULL;
+- head->data_len += fp->len;
+- head->len += fp->len;
+- if (head->ip_summed != fp->ip_summed)
+- head->ip_summed = CHECKSUM_NONE;
+- else if (head->ip_summed == CHECKSUM_COMPLETE)
+- head->csum = csum_add(head->csum, fp->csum);
+- head->truesize += fp->truesize;
+- fp = FRAG_CB(fp)->next_frag;
+- }
+- /* Move to the next run. */
+- if (rbn) {
+- struct rb_node *rbnext = rb_next(rbn);
+-
+- fp = rb_to_skb(rbn);
+- rb_erase(rbn, &qp->q.rb_fragments);
+- rbn = rbnext;
+- }
+- }
+- sub_frag_mem_limit(qp->q.net, head->truesize);
+-
+- *nextp = NULL;
+- head->next = NULL;
+- head->prev = NULL;
+- head->dev = dev;
+- head->tstamp = qp->q.stamp;
+- IPCB(head)->frag_max_size = max(qp->max_df_size, qp->q.max_size);
+-
+- iph = ip_hdr(head);
++ iph = ip_hdr(skb);
+ iph->tot_len = htons(len);
+ iph->tos |= ecn;
+
+@@ -653,7 +443,7 @@ static int ip_frag_reasm(struct ipq *qp, struct sk_buff *skb,
+ * from one very small df-fragment and one large non-df frag.
+ */
+ if (qp->max_df_size == qp->q.max_size) {
+- IPCB(head)->flags |= IPSKB_FRAG_PMTU;
++ IPCB(skb)->flags |= IPSKB_FRAG_PMTU;
+ iph->frag_off = htons(IP_DF);
+ } else {
+ iph->frag_off = 0;
+@@ -751,28 +541,6 @@ struct sk_buff *ip_check_defrag(struct net *net, struct sk_buff *skb, u32 user)
+ }
+ EXPORT_SYMBOL(ip_check_defrag);
+
+-unsigned int inet_frag_rbtree_purge(struct rb_root *root)
+-{
+- struct rb_node *p = rb_first(root);
+- unsigned int sum = 0;
+-
+- while (p) {
+- struct sk_buff *skb = rb_entry(p, struct sk_buff, rbnode);
+-
+- p = rb_next(p);
+- rb_erase(&skb->rbnode, root);
+- while (skb) {
+- struct sk_buff *next = FRAG_CB(skb)->next_frag;
+-
+- sum += skb->truesize;
+- kfree_skb(skb);
+- skb = next;
+- }
+- }
+- return sum;
+-}
+-EXPORT_SYMBOL(inet_frag_rbtree_purge);
+-
+ #ifdef CONFIG_SYSCTL
+ static int dist_min;
+
+diff --git a/net/ipv4/route.c b/net/ipv4/route.c
+index 7a556e459375..98c81c21b753 100644
+--- a/net/ipv4/route.c
++++ b/net/ipv4/route.c
+@@ -1187,9 +1187,23 @@ 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 572f79abd393..cfdd70e32755 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/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c
+index 043ed8eb0ab9..cb1b4772dac0 100644
+--- a/net/ipv6/netfilter/nf_conntrack_reasm.c
++++ b/net/ipv6/netfilter/nf_conntrack_reasm.c
+@@ -136,6 +136,9 @@ static void __net_exit nf_ct_frags6_sysctl_unregister(struct net *net)
+ }
+ #endif
+
++static int nf_ct_frag6_reasm(struct frag_queue *fq, struct sk_buff *skb,
++ struct sk_buff *prev_tail, struct net_device *dev);
++
+ static inline u8 ip6_frag_ecn(const struct ipv6hdr *ipv6h)
+ {
+ return 1 << (ipv6_get_dsfield(ipv6h) & INET_ECN_MASK);
+@@ -177,9 +180,10 @@ static struct frag_queue *fq_find(struct net *net, __be32 id, u32 user,
+ static int nf_ct_frag6_queue(struct frag_queue *fq, struct sk_buff *skb,
+ const struct frag_hdr *fhdr, int nhoff)
+ {
+- struct sk_buff *prev, *next;
+ unsigned int payload_len;
+- int offset, end;
++ struct net_device *dev;
++ struct sk_buff *prev;
++ int offset, end, err;
+ u8 ecn;
+
+ if (fq->q.flags & INET_FRAG_COMPLETE) {
+@@ -254,55 +258,18 @@ static int nf_ct_frag6_queue(struct frag_queue *fq, struct sk_buff *skb,
+ goto err;
+ }
+
+- /* Find out which fragments are in front and at the back of us
+- * in the chain of fragments so far. We must know where to put
+- * this fragment, right?
+- */
+- prev = fq->q.fragments_tail;
+- if (!prev || prev->ip_defrag_offset < offset) {
+- next = NULL;
+- goto found;
+- }
+- prev = NULL;
+- for (next = fq->q.fragments; next != NULL; next = next->next) {
+- if (next->ip_defrag_offset >= offset)
+- break; /* bingo! */
+- prev = next;
+- }
+-
+-found:
+- /* RFC5722, Section 4:
+- * When reassembling an IPv6 datagram, if
+- * one or more its constituent fragments is determined to be an
+- * overlapping fragment, the entire datagram (and any constituent
+- * fragments, including those not yet received) MUST be silently
+- * discarded.
+- */
+-
+- /* Check for overlap with preceding fragment. */
+- if (prev &&
+- (prev->ip_defrag_offset + prev->len) > offset)
+- goto discard_fq;
+-
+- /* Look for overlap with succeeding segment. */
+- if (next && next->ip_defrag_offset < end)
+- goto discard_fq;
+-
+- /* Note : skb->ip_defrag_offset and skb->dev share the same location */
+- if (skb->dev)
+- fq->iif = skb->dev->ifindex;
++ /* Note : skb->rbnode and skb->dev share the same location. */
++ dev = skb->dev;
+ /* Makes sure compiler wont do silly aliasing games */
+ barrier();
+- skb->ip_defrag_offset = offset;
+
+- /* Insert this fragment in the chain of fragments. */
+- skb->next = next;
+- if (!next)
+- fq->q.fragments_tail = skb;
+- if (prev)
+- prev->next = skb;
+- else
+- fq->q.fragments = skb;
++ prev = fq->q.fragments_tail;
++ err = inet_frag_queue_insert(&fq->q, skb, offset, end);
++ if (err)
++ goto insert_error;
++
++ if (dev)
++ fq->iif = dev->ifindex;
+
+ fq->q.stamp = skb->tstamp;
+ fq->q.meat += skb->len;
+@@ -319,11 +286,25 @@ found:
+ fq->q.flags |= INET_FRAG_FIRST_IN;
+ }
+
+- return 0;
++ if (fq->q.flags == (INET_FRAG_FIRST_IN | INET_FRAG_LAST_IN) &&
++ fq->q.meat == fq->q.len) {
++ unsigned long orefdst = skb->_skb_refdst;
++
++ skb->_skb_refdst = 0UL;
++ err = nf_ct_frag6_reasm(fq, skb, prev, dev);
++ skb->_skb_refdst = orefdst;
++ return err;
++ }
++
++ skb_dst_drop(skb);
++ return -EINPROGRESS;
+
+-discard_fq:
++insert_error:
++ if (err == IPFRAG_DUP)
++ goto err;
+ inet_frag_kill(&fq->q);
+ err:
++ skb_dst_drop(skb);
+ return -EINVAL;
+ }
+
+@@ -333,147 +314,67 @@ err:
+ * It is called with locked fq, and caller must check that
+ * queue is eligible for reassembly i.e. it is not COMPLETE,
+ * the last and the first frames arrived and all the bits are here.
+- *
+- * returns true if *prev skb has been transformed into the reassembled
+- * skb, false otherwise.
+ */
+-static bool
+-nf_ct_frag6_reasm(struct frag_queue *fq, struct sk_buff *prev, struct net_device *dev)
++static int nf_ct_frag6_reasm(struct frag_queue *fq, struct sk_buff *skb,
++ struct sk_buff *prev_tail, struct net_device *dev)
+ {
+- struct sk_buff *fp, *head = fq->q.fragments;
+- int payload_len, delta;
++ void *reasm_data;
++ int payload_len;
+ u8 ecn;
+
+ inet_frag_kill(&fq->q);
+
+- WARN_ON(head == NULL);
+- WARN_ON(head->ip_defrag_offset != 0);
+-
+ ecn = ip_frag_ecn_table[fq->ecn];
+ if (unlikely(ecn == 0xff))
+- return false;
++ goto err;
++
++ reasm_data = inet_frag_reasm_prepare(&fq->q, skb, prev_tail);
++ if (!reasm_data)
++ goto err;
+
+- /* Unfragmented part is taken from the first segment. */
+- payload_len = ((head->data - skb_network_header(head)) -
++ payload_len = ((skb->data - skb_network_header(skb)) -
+ sizeof(struct ipv6hdr) + fq->q.len -
+ sizeof(struct frag_hdr));
+ if (payload_len > IPV6_MAXPLEN) {
+ net_dbg_ratelimited("nf_ct_frag6_reasm: payload len = %d\n",
+ payload_len);
+- return false;
+- }
+-
+- delta = - head->truesize;
+-
+- /* Head of list must not be cloned. */
+- if (skb_unclone(head, GFP_ATOMIC))
+- return false;
+-
+- delta += head->truesize;
+- if (delta)
+- add_frag_mem_limit(fq->q.net, delta);
+-
+- /* If the first fragment is fragmented itself, we split
+- * it to two chunks: the first with data and paged part
+- * and the second, holding only fragments. */
+- if (skb_has_frag_list(head)) {
+- struct sk_buff *clone;
+- int i, plen = 0;
+-
+- clone = alloc_skb(0, GFP_ATOMIC);
+- if (clone == NULL)
+- return false;
+-
+- clone->next = head->next;
+- head->next = clone;
+- skb_shinfo(clone)->frag_list = skb_shinfo(head)->frag_list;
+- skb_frag_list_init(head);
+- for (i = 0; i < skb_shinfo(head)->nr_frags; i++)
+- plen += skb_frag_size(&skb_shinfo(head)->frags[i]);
+- clone->len = clone->data_len = head->data_len - plen;
+- head->data_len -= clone->len;
+- head->len -= clone->len;
+- clone->csum = 0;
+- clone->ip_summed = head->ip_summed;
+-
+- add_frag_mem_limit(fq->q.net, clone->truesize);
+- }
+-
+- /* morph head into last received skb: prev.
+- *
+- * This allows callers of ipv6 conntrack defrag to continue
+- * to use the last skb(frag) passed into the reasm engine.
+- * The last skb frag 'silently' turns into the full reassembled skb.
+- *
+- * Since prev is also part of q->fragments we have to clone it first.
+- */
+- if (head != prev) {
+- struct sk_buff *iter;
+-
+- fp = skb_clone(prev, GFP_ATOMIC);
+- if (!fp)
+- return false;
+-
+- fp->next = prev->next;
+-
+- iter = head;
+- while (iter) {
+- if (iter->next == prev) {
+- iter->next = fp;
+- break;
+- }
+- iter = iter->next;
+- }
+-
+- skb_morph(prev, head);
+- prev->next = head->next;
+- consume_skb(head);
+- head = prev;
++ goto err;
+ }
+
+ /* We have to remove fragment header from datagram and to relocate
+ * header in order to calculate ICV correctly. */
+- skb_network_header(head)[fq->nhoffset] = skb_transport_header(head)[0];
+- memmove(head->head + sizeof(struct frag_hdr), head->head,
+- (head->data - head->head) - sizeof(struct frag_hdr));
+- head->mac_header += sizeof(struct frag_hdr);
+- head->network_header += sizeof(struct frag_hdr);
+-
+- skb_shinfo(head)->frag_list = head->next;
+- skb_reset_transport_header(head);
+- skb_push(head, head->data - skb_network_header(head));
+-
+- for (fp = head->next; fp; fp = fp->next) {
+- head->data_len += fp->len;
+- head->len += fp->len;
+- if (head->ip_summed != fp->ip_summed)
+- head->ip_summed = CHECKSUM_NONE;
+- else if (head->ip_summed == CHECKSUM_COMPLETE)
+- head->csum = csum_add(head->csum, fp->csum);
+- head->truesize += fp->truesize;
+- fp->sk = NULL;
+- }
+- sub_frag_mem_limit(fq->q.net, head->truesize);
++ skb_network_header(skb)[fq->nhoffset] = skb_transport_header(skb)[0];
++ memmove(skb->head + sizeof(struct frag_hdr), skb->head,
++ (skb->data - skb->head) - sizeof(struct frag_hdr));
++ skb->mac_header += sizeof(struct frag_hdr);
++ skb->network_header += sizeof(struct frag_hdr);
++
++ skb_reset_transport_header(skb);
++
++ inet_frag_reasm_finish(&fq->q, skb, reasm_data);
+
+- head->ignore_df = 1;
+- head->next = NULL;
+- head->dev = dev;
+- head->tstamp = fq->q.stamp;
+- ipv6_hdr(head)->payload_len = htons(payload_len);
+- ipv6_change_dsfield(ipv6_hdr(head), 0xff, ecn);
+- IP6CB(head)->frag_max_size = sizeof(struct ipv6hdr) + fq->q.max_size;
++ skb->ignore_df = 1;
++ skb->dev = dev;
++ ipv6_hdr(skb)->payload_len = htons(payload_len);
++ ipv6_change_dsfield(ipv6_hdr(skb), 0xff, ecn);
++ IP6CB(skb)->frag_max_size = sizeof(struct ipv6hdr) + fq->q.max_size;
+
+ /* Yes, and fold redundant checksum back. 8) */
+- if (head->ip_summed == CHECKSUM_COMPLETE)
+- head->csum = csum_partial(skb_network_header(head),
+- skb_network_header_len(head),
+- head->csum);
++ if (skb->ip_summed == CHECKSUM_COMPLETE)
++ skb->csum = csum_partial(skb_network_header(skb),
++ skb_network_header_len(skb),
++ skb->csum);
+
+ fq->q.fragments = NULL;
+ fq->q.rb_fragments = RB_ROOT;
+ fq->q.fragments_tail = NULL;
++ fq->q.last_run_head = NULL;
+
+- return true;
++ return 0;
++
++err:
++ inet_frag_kill(&fq->q);
++ return -EINVAL;
+ }
+
+ /*
+@@ -542,7 +443,6 @@ find_prev_fhdr(struct sk_buff *skb, u8 *prevhdrp, int *prevhoff, int *fhoff)
+ int nf_ct_frag6_gather(struct net *net, struct sk_buff *skb, u32 user)
+ {
+ u16 savethdr = skb->transport_header;
+- struct net_device *dev = skb->dev;
+ int fhoff, nhoff, ret;
+ struct frag_hdr *fhdr;
+ struct frag_queue *fq;
+@@ -565,10 +465,6 @@ int nf_ct_frag6_gather(struct net *net, struct sk_buff *skb, u32 user)
+ hdr = ipv6_hdr(skb);
+ fhdr = (struct frag_hdr *)skb_transport_header(skb);
+
+- if (skb->len - skb_network_offset(skb) < IPV6_MIN_MTU &&
+- fhdr->frag_off & htons(IP6_MF))
+- return -EINVAL;
+-
+ skb_orphan(skb);
+ fq = fq_find(net, fhdr->identification, user, hdr,
+ skb->dev ? skb->dev->ifindex : 0);
+@@ -580,31 +476,17 @@ int nf_ct_frag6_gather(struct net *net, struct sk_buff *skb, u32 user)
+ spin_lock_bh(&fq->q.lock);
+
+ ret = nf_ct_frag6_queue(fq, skb, fhdr, nhoff);
+- if (ret < 0) {
+- if (ret == -EPROTO) {
+- skb->transport_header = savethdr;
+- ret = 0;
+- }
+- goto out_unlock;
++ if (ret == -EPROTO) {
++ skb->transport_header = savethdr;
++ ret = 0;
+ }
+
+ /* after queue has assumed skb ownership, only 0 or -EINPROGRESS
+ * must be returned.
+ */
+- ret = -EINPROGRESS;
+- if (fq->q.flags == (INET_FRAG_FIRST_IN | INET_FRAG_LAST_IN) &&
+- fq->q.meat == fq->q.len) {
+- unsigned long orefdst = skb->_skb_refdst;
+-
+- skb->_skb_refdst = 0UL;
+- if (nf_ct_frag6_reasm(fq, skb, dev))
+- ret = 0;
+- skb->_skb_refdst = orefdst;
+- } else {
+- skb_dst_drop(skb);
+- }
++ if (ret)
++ ret = -EINPROGRESS;
+
+-out_unlock:
+ spin_unlock_bh(&fq->q.lock);
+ inet_frag_put(&fq->q);
+ return ret;
+diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c
+index 7c943392c128..095825f964e2 100644
+--- a/net/ipv6/reassembly.c
++++ b/net/ipv6/reassembly.c
+@@ -69,8 +69,8 @@ static u8 ip6_frag_ecn(const struct ipv6hdr *ipv6h)
+
+ static struct inet_frags ip6_frags;
+
+-static int ip6_frag_reasm(struct frag_queue *fq, struct sk_buff *prev,
+- struct net_device *dev);
++static int ip6_frag_reasm(struct frag_queue *fq, struct sk_buff *skb,
++ struct sk_buff *prev_tail, struct net_device *dev);
+
+ static void ip6_frag_expire(struct timer_list *t)
+ {
+@@ -111,21 +111,26 @@ static int ip6_frag_queue(struct frag_queue *fq, struct sk_buff *skb,
+ struct frag_hdr *fhdr, int nhoff,
+ u32 *prob_offset)
+ {
+- struct sk_buff *prev, *next;
+- struct net_device *dev;
+- int offset, end, fragsize;
+ struct net *net = dev_net(skb_dst(skb)->dev);
++ int offset, end, fragsize;
++ struct sk_buff *prev_tail;
++ struct net_device *dev;
++ int err = -ENOENT;
+ u8 ecn;
+
+ if (fq->q.flags & INET_FRAG_COMPLETE)
+ goto err;
+
++ err = -EINVAL;
+ offset = ntohs(fhdr->frag_off) & ~0x7;
+ end = offset + (ntohs(ipv6_hdr(skb)->payload_len) -
+ ((u8 *)(fhdr + 1) - (u8 *)(ipv6_hdr(skb) + 1)));
+
+ if ((unsigned int)end > IPV6_MAXPLEN) {
+ *prob_offset = (u8 *)&fhdr->frag_off - skb_network_header(skb);
++ /* note that if prob_offset is set, the skb is freed elsewhere,
++ * we do not free it here.
++ */
+ return -1;
+ }
+
+@@ -145,7 +150,7 @@ static int ip6_frag_queue(struct frag_queue *fq, struct sk_buff *skb,
+ */
+ if (end < fq->q.len ||
+ ((fq->q.flags & INET_FRAG_LAST_IN) && end != fq->q.len))
+- goto err;
++ goto discard_fq;
+ fq->q.flags |= INET_FRAG_LAST_IN;
+ fq->q.len = end;
+ } else {
+@@ -162,70 +167,35 @@ static int ip6_frag_queue(struct frag_queue *fq, struct sk_buff *skb,
+ if (end > fq->q.len) {
+ /* Some bits beyond end -> corruption. */
+ if (fq->q.flags & INET_FRAG_LAST_IN)
+- goto err;
++ goto discard_fq;
+ fq->q.len = end;
+ }
+ }
+
+ if (end == offset)
+- goto err;
++ goto discard_fq;
+
++ err = -ENOMEM;
+ /* Point into the IP datagram 'data' part. */
+ if (!pskb_pull(skb, (u8 *) (fhdr + 1) - skb->data))
+- goto err;
+-
+- if (pskb_trim_rcsum(skb, end - offset))
+- goto err;
+-
+- /* Find out which fragments are in front and at the back of us
+- * in the chain of fragments so far. We must know where to put
+- * this fragment, right?
+- */
+- prev = fq->q.fragments_tail;
+- if (!prev || prev->ip_defrag_offset < offset) {
+- next = NULL;
+- goto found;
+- }
+- prev = NULL;
+- for (next = fq->q.fragments; next != NULL; next = next->next) {
+- if (next->ip_defrag_offset >= offset)
+- break; /* bingo! */
+- prev = next;
+- }
+-
+-found:
+- /* RFC5722, Section 4, amended by Errata ID : 3089
+- * When reassembling an IPv6 datagram, if
+- * one or more its constituent fragments is determined to be an
+- * overlapping fragment, the entire datagram (and any constituent
+- * fragments) MUST be silently discarded.
+- */
+-
+- /* Check for overlap with preceding fragment. */
+- if (prev &&
+- (prev->ip_defrag_offset + prev->len) > offset)
+ goto discard_fq;
+
+- /* Look for overlap with succeeding segment. */
+- if (next && next->ip_defrag_offset < end)
++ err = pskb_trim_rcsum(skb, end - offset);
++ if (err)
+ goto discard_fq;
+
+- /* Note : skb->ip_defrag_offset and skb->dev share the same location */
++ /* Note : skb->rbnode and skb->dev share the same location. */
+ dev = skb->dev;
+- if (dev)
+- fq->iif = dev->ifindex;
+ /* Makes sure compiler wont do silly aliasing games */
+ barrier();
+- skb->ip_defrag_offset = offset;
+
+- /* Insert this fragment in the chain of fragments. */
+- skb->next = next;
+- if (!next)
+- fq->q.fragments_tail = skb;
+- if (prev)
+- prev->next = skb;
+- else
+- fq->q.fragments = skb;
++ prev_tail = fq->q.fragments_tail;
++ err = inet_frag_queue_insert(&fq->q, skb, offset, end);
++ if (err)
++ goto insert_error;
++
++ if (dev)
++ fq->iif = dev->ifindex;
+
+ fq->q.stamp = skb->tstamp;
+ fq->q.meat += skb->len;
+@@ -246,44 +216,48 @@ found:
+
+ if (fq->q.flags == (INET_FRAG_FIRST_IN | INET_FRAG_LAST_IN) &&
+ fq->q.meat == fq->q.len) {
+- int res;
+ unsigned long orefdst = skb->_skb_refdst;
+
+ skb->_skb_refdst = 0UL;
+- res = ip6_frag_reasm(fq, prev, dev);
++ err = ip6_frag_reasm(fq, skb, prev_tail, dev);
+ skb->_skb_refdst = orefdst;
+- return res;
++ return err;
+ }
+
+ skb_dst_drop(skb);
+- return -1;
++ return -EINPROGRESS;
+
++insert_error:
++ if (err == IPFRAG_DUP) {
++ kfree_skb(skb);
++ return -EINVAL;
++ }
++ err = -EINVAL;
++ __IP6_INC_STATS(net, ip6_dst_idev(skb_dst(skb)),
++ IPSTATS_MIB_REASM_OVERLAPS);
+ discard_fq:
+ inet_frag_kill(&fq->q);
+-err:
+ __IP6_INC_STATS(net, ip6_dst_idev(skb_dst(skb)),
+ IPSTATS_MIB_REASMFAILS);
++err:
+ kfree_skb(skb);
+- return -1;
++ return err;
+ }
+
+ /*
+ * Check if this packet is complete.
+- * Returns NULL on failure by any reason, and pointer
+- * to current nexthdr field in reassembled frame.
+ *
+ * It is called with locked fq, and caller must check that
+ * queue is eligible for reassembly i.e. it is not COMPLETE,
+ * the last and the first frames arrived and all the bits are here.
+ */
+-static int ip6_frag_reasm(struct frag_queue *fq, struct sk_buff *prev,
+- struct net_device *dev)
++static int ip6_frag_reasm(struct frag_queue *fq, struct sk_buff *skb,
++ struct sk_buff *prev_tail, struct net_device *dev)
+ {
+ struct net *net = container_of(fq->q.net, struct net, ipv6.frags);
+- struct sk_buff *fp, *head = fq->q.fragments;
+- int payload_len, delta;
+ unsigned int nhoff;
+- int sum_truesize;
++ void *reasm_data;
++ int payload_len;
+ u8 ecn;
+
+ inet_frag_kill(&fq->q);
+@@ -292,121 +266,40 @@ static int ip6_frag_reasm(struct frag_queue *fq, struct sk_buff *prev,
+ if (unlikely(ecn == 0xff))
+ goto out_fail;
+
+- /* Make the one we just received the head. */
+- if (prev) {
+- head = prev->next;
+- fp = skb_clone(head, GFP_ATOMIC);
+-
+- if (!fp)
+- goto out_oom;
+-
+- fp->next = head->next;
+- if (!fp->next)
+- fq->q.fragments_tail = fp;
+- prev->next = fp;
+-
+- skb_morph(head, fq->q.fragments);
+- head->next = fq->q.fragments->next;
+-
+- consume_skb(fq->q.fragments);
+- fq->q.fragments = head;
+- }
+-
+- WARN_ON(head == NULL);
+- WARN_ON(head->ip_defrag_offset != 0);
++ reasm_data = inet_frag_reasm_prepare(&fq->q, skb, prev_tail);
++ if (!reasm_data)
++ goto out_oom;
+
+- /* Unfragmented part is taken from the first segment. */
+- payload_len = ((head->data - skb_network_header(head)) -
++ payload_len = ((skb->data - skb_network_header(skb)) -
+ sizeof(struct ipv6hdr) + fq->q.len -
+ sizeof(struct frag_hdr));
+ if (payload_len > IPV6_MAXPLEN)
+ goto out_oversize;
+
+- delta = - head->truesize;
+-
+- /* Head of list must not be cloned. */
+- if (skb_unclone(head, GFP_ATOMIC))
+- goto out_oom;
+-
+- delta += head->truesize;
+- if (delta)
+- add_frag_mem_limit(fq->q.net, delta);
+-
+- /* If the first fragment is fragmented itself, we split
+- * it to two chunks: the first with data and paged part
+- * and the second, holding only fragments. */
+- if (skb_has_frag_list(head)) {
+- struct sk_buff *clone;
+- int i, plen = 0;
+-
+- clone = alloc_skb(0, GFP_ATOMIC);
+- if (!clone)
+- goto out_oom;
+- clone->next = head->next;
+- head->next = clone;
+- skb_shinfo(clone)->frag_list = skb_shinfo(head)->frag_list;
+- skb_frag_list_init(head);
+- for (i = 0; i < skb_shinfo(head)->nr_frags; i++)
+- plen += skb_frag_size(&skb_shinfo(head)->frags[i]);
+- clone->len = clone->data_len = head->data_len - plen;
+- head->data_len -= clone->len;
+- head->len -= clone->len;
+- clone->csum = 0;
+- clone->ip_summed = head->ip_summed;
+- add_frag_mem_limit(fq->q.net, clone->truesize);
+- }
+-
+ /* We have to remove fragment header from datagram and to relocate
+ * header in order to calculate ICV correctly. */
+ nhoff = fq->nhoffset;
+- skb_network_header(head)[nhoff] = skb_transport_header(head)[0];
+- memmove(head->head + sizeof(struct frag_hdr), head->head,
+- (head->data - head->head) - sizeof(struct frag_hdr));
+- if (skb_mac_header_was_set(head))
+- head->mac_header += sizeof(struct frag_hdr);
+- head->network_header += sizeof(struct frag_hdr);
+-
+- skb_reset_transport_header(head);
+- skb_push(head, head->data - skb_network_header(head));
+-
+- sum_truesize = head->truesize;
+- for (fp = head->next; fp;) {
+- bool headstolen;
+- int delta;
+- struct sk_buff *next = fp->next;
+-
+- sum_truesize += fp->truesize;
+- if (head->ip_summed != fp->ip_summed)
+- head->ip_summed = CHECKSUM_NONE;
+- else if (head->ip_summed == CHECKSUM_COMPLETE)
+- head->csum = csum_add(head->csum, fp->csum);
+-
+- if (skb_try_coalesce(head, fp, &headstolen, &delta)) {
+- kfree_skb_partial(fp, headstolen);
+- } else {
+- fp->sk = NULL;
+- if (!skb_shinfo(head)->frag_list)
+- skb_shinfo(head)->frag_list = fp;
+- head->data_len += fp->len;
+- head->len += fp->len;
+- head->truesize += fp->truesize;
+- }
+- fp = next;
+- }
+- sub_frag_mem_limit(fq->q.net, sum_truesize);
++ skb_network_header(skb)[nhoff] = skb_transport_header(skb)[0];
++ memmove(skb->head + sizeof(struct frag_hdr), skb->head,
++ (skb->data - skb->head) - sizeof(struct frag_hdr));
++ if (skb_mac_header_was_set(skb))
++ skb->mac_header += sizeof(struct frag_hdr);
++ skb->network_header += sizeof(struct frag_hdr);
++
++ skb_reset_transport_header(skb);
++
++ inet_frag_reasm_finish(&fq->q, skb, reasm_data);
+
+- head->next = NULL;
+- head->dev = dev;
+- head->tstamp = fq->q.stamp;
+- ipv6_hdr(head)->payload_len = htons(payload_len);
+- ipv6_change_dsfield(ipv6_hdr(head), 0xff, ecn);
+- IP6CB(head)->nhoff = nhoff;
+- IP6CB(head)->flags |= IP6SKB_FRAGMENTED;
+- IP6CB(head)->frag_max_size = fq->q.max_size;
++ skb->dev = dev;
++ ipv6_hdr(skb)->payload_len = htons(payload_len);
++ ipv6_change_dsfield(ipv6_hdr(skb), 0xff, ecn);
++ IP6CB(skb)->nhoff = nhoff;
++ IP6CB(skb)->flags |= IP6SKB_FRAGMENTED;
++ IP6CB(skb)->frag_max_size = fq->q.max_size;
+
+ /* Yes, and fold redundant checksum back. 8) */
+- skb_postpush_rcsum(head, skb_network_header(head),
+- skb_network_header_len(head));
++ skb_postpush_rcsum(skb, skb_network_header(skb),
++ skb_network_header_len(skb));
+
+ rcu_read_lock();
+ __IP6_INC_STATS(net, __in6_dev_get(dev), IPSTATS_MIB_REASMOKS);
+@@ -414,6 +307,7 @@ static int ip6_frag_reasm(struct frag_queue *fq, struct sk_buff *prev,
+ fq->q.fragments = NULL;
+ fq->q.rb_fragments = RB_ROOT;
+ fq->q.fragments_tail = NULL;
++ fq->q.last_run_head = NULL;
+ return 1;
+
+ out_oversize:
+@@ -425,6 +319,7 @@ out_fail:
+ rcu_read_lock();
+ __IP6_INC_STATS(net, __in6_dev_get(dev), IPSTATS_MIB_REASMFAILS);
+ rcu_read_unlock();
++ inet_frag_kill(&fq->q);
+ return -1;
+ }
+
+@@ -463,10 +358,6 @@ static int ipv6_frag_rcv(struct sk_buff *skb)
+ return 1;
+ }
+
+- if (skb->len - skb_network_offset(skb) < IPV6_MIN_MTU &&
+- fhdr->frag_off & htons(IP6_MF))
+- goto fail_hdr;
+-
+ iif = skb->dev ? skb->dev->ifindex : 0;
+ fq = fq_find(net, fhdr->identification, hdr, iif);
+ if (fq) {
+@@ -484,6 +375,7 @@ static int ipv6_frag_rcv(struct sk_buff *skb)
+ if (prob_offset) {
+ __IP6_INC_STATS(net, __in6_dev_get_safely(skb->dev),
+ IPSTATS_MIB_INHDRERRORS);
++ /* icmpv6_param_prob() calls kfree_skb(skb) */
+ icmpv6_param_prob(skb, ICMPV6_HDR_FIELD, prob_offset);
+ }
+ return ret;
+diff --git a/net/ipv6/route.c b/net/ipv6/route.c
+index 9006bb3c9e72..06fa8425d82c 100644
+--- a/net/ipv6/route.c
++++ b/net/ipv6/route.c
+@@ -2367,6 +2367,10 @@ 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 8f6998091d26..2123f6e90fc0 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/sched/sch_cake.c b/net/sched/sch_cake.c
+index 793016d722ec..9fd37d91b5ed 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/tipc/name_table.c b/net/tipc/name_table.c
+index 66d5b2c5987a..d72985ca1d55 100644
+--- a/net/tipc/name_table.c
++++ b/net/tipc/name_table.c
+@@ -908,7 +908,8 @@ 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/scripts/mod/file2alias.c b/scripts/mod/file2alias.c
+index 7be43697ff84..7f40b6aab689 100644
+--- a/scripts/mod/file2alias.c
++++ b/scripts/mod/file2alias.c
+@@ -47,49 +47,9 @@ typedef struct {
+ struct devtable {
+ const char *device_id; /* name of table, __mod_<name>__*_device_table. */
+ unsigned long id_size;
+- void *function;
++ int (*do_entry)(const char *filename, void *symval, char *alias);
+ };
+
+-#define ___cat(a,b) a ## b
+-#define __cat(a,b) ___cat(a,b)
+-
+-/* we need some special handling for this host tool running eventually on
+- * Darwin. The Mach-O section handling is a bit different than ELF section
+- * handling. The differnces in detail are:
+- * a) we have segments which have sections
+- * b) we need a API call to get the respective section symbols */
+-#if defined(__MACH__)
+-#include <mach-o/getsect.h>
+-
+-#define INIT_SECTION(name) do { \
+- unsigned long name ## _len; \
+- char *__cat(pstart_,name) = getsectdata("__TEXT", \
+- #name, &__cat(name,_len)); \
+- char *__cat(pstop_,name) = __cat(pstart_,name) + \
+- __cat(name, _len); \
+- __cat(__start_,name) = (void *)__cat(pstart_,name); \
+- __cat(__stop_,name) = (void *)__cat(pstop_,name); \
+- } while (0)
+-#define SECTION(name) __attribute__((section("__TEXT, " #name)))
+-
+-struct devtable **__start___devtable, **__stop___devtable;
+-#else
+-#define INIT_SECTION(name) /* no-op for ELF */
+-#define SECTION(name) __attribute__((section(#name)))
+-
+-/* We construct a table of pointers in an ELF section (pointers generally
+- * go unpadded by gcc). ld creates boundary syms for us. */
+-extern struct devtable *__start___devtable[], *__stop___devtable[];
+-#endif /* __MACH__ */
+-
+-#if !defined(__used)
+-# if __GNUC__ == 3 && __GNUC_MINOR__ < 3
+-# define __used __attribute__((__unused__))
+-# else
+-# define __used __attribute__((__used__))
+-# endif
+-#endif
+-
+ /* Define a variable f that holds the value of field f of struct devid
+ * based at address m.
+ */
+@@ -102,16 +62,6 @@ extern struct devtable *__start___devtable[], *__stop___devtable[];
+ #define DEF_FIELD_ADDR(m, devid, f) \
+ typeof(((struct devid *)0)->f) *f = ((m) + OFF_##devid##_##f)
+
+-/* Add a table entry. We test function type matches while we're here. */
+-#define ADD_TO_DEVTABLE(device_id, type, function) \
+- static struct devtable __cat(devtable,__LINE__) = { \
+- device_id + 0*sizeof((function)((const char *)NULL, \
+- (void *)NULL, \
+- (char *)NULL)), \
+- SIZE_##type, (function) }; \
+- static struct devtable *SECTION(__devtable) __used \
+- __cat(devtable_ptr,__LINE__) = &__cat(devtable,__LINE__)
+-
+ #define ADD(str, sep, cond, field) \
+ do { \
+ strcat(str, sep); \
+@@ -431,7 +381,6 @@ static int do_hid_entry(const char *filename,
+
+ return 1;
+ }
+-ADD_TO_DEVTABLE("hid", hid_device_id, do_hid_entry);
+
+ /* Looks like: ieee1394:venNmoNspNverN */
+ static int do_ieee1394_entry(const char *filename,
+@@ -456,7 +405,6 @@ static int do_ieee1394_entry(const char *filename,
+ add_wildcard(alias);
+ return 1;
+ }
+-ADD_TO_DEVTABLE("ieee1394", ieee1394_device_id, do_ieee1394_entry);
+
+ /* Looks like: pci:vNdNsvNsdNbcNscNiN. */
+ static int do_pci_entry(const char *filename,
+@@ -500,7 +448,6 @@ static int do_pci_entry(const char *filename,
+ add_wildcard(alias);
+ return 1;
+ }
+-ADD_TO_DEVTABLE("pci", pci_device_id, do_pci_entry);
+
+ /* looks like: "ccw:tNmNdtNdmN" */
+ static int do_ccw_entry(const char *filename,
+@@ -524,7 +471,6 @@ static int do_ccw_entry(const char *filename,
+ add_wildcard(alias);
+ return 1;
+ }
+-ADD_TO_DEVTABLE("ccw", ccw_device_id, do_ccw_entry);
+
+ /* looks like: "ap:tN" */
+ static int do_ap_entry(const char *filename,
+@@ -535,7 +481,6 @@ static int do_ap_entry(const char *filename,
+ sprintf(alias, "ap:t%02X*", dev_type);
+ return 1;
+ }
+-ADD_TO_DEVTABLE("ap", ap_device_id, do_ap_entry);
+
+ /* looks like: "css:tN" */
+ static int do_css_entry(const char *filename,
+@@ -546,7 +491,6 @@ static int do_css_entry(const char *filename,
+ sprintf(alias, "css:t%01X", type);
+ return 1;
+ }
+-ADD_TO_DEVTABLE("css", css_device_id, do_css_entry);
+
+ /* Looks like: "serio:tyNprNidNexN" */
+ static int do_serio_entry(const char *filename,
+@@ -566,7 +510,6 @@ static int do_serio_entry(const char *filename,
+ add_wildcard(alias);
+ return 1;
+ }
+-ADD_TO_DEVTABLE("serio", serio_device_id, do_serio_entry);
+
+ /* looks like: "acpi:ACPI0003" or "acpi:PNP0C0B" or "acpi:LNXVIDEO" or
+ * "acpi:bbsspp" (bb=base-class, ss=sub-class, pp=prog-if)
+@@ -604,7 +547,6 @@ static int do_acpi_entry(const char *filename,
+ }
+ return 1;
+ }
+-ADD_TO_DEVTABLE("acpi", acpi_device_id, do_acpi_entry);
+
+ /* looks like: "pnp:dD" */
+ static void do_pnp_device_entry(void *symval, unsigned long size,
+@@ -725,7 +667,6 @@ static int do_pcmcia_entry(const char *filename,
+ add_wildcard(alias);
+ return 1;
+ }
+-ADD_TO_DEVTABLE("pcmcia", pcmcia_device_id, do_pcmcia_entry);
+
+ static int do_vio_entry(const char *filename, void *symval,
+ char *alias)
+@@ -745,7 +686,6 @@ static int do_vio_entry(const char *filename, void *symval,
+ add_wildcard(alias);
+ return 1;
+ }
+-ADD_TO_DEVTABLE("vio", vio_device_id, do_vio_entry);
+
+ #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
+
+@@ -818,7 +758,6 @@ static int do_input_entry(const char *filename, void *symval,
+ do_input(alias, *swbit, 0, INPUT_DEVICE_ID_SW_MAX);
+ return 1;
+ }
+-ADD_TO_DEVTABLE("input", input_device_id, do_input_entry);
+
+ static int do_eisa_entry(const char *filename, void *symval,
+ char *alias)
+@@ -830,7 +769,6 @@ static int do_eisa_entry(const char *filename, void *symval,
+ strcat(alias, "*");
+ return 1;
+ }
+-ADD_TO_DEVTABLE("eisa", eisa_device_id, do_eisa_entry);
+
+ /* Looks like: parisc:tNhvNrevNsvN */
+ static int do_parisc_entry(const char *filename, void *symval,
+@@ -850,7 +788,6 @@ static int do_parisc_entry(const char *filename, void *symval,
+ add_wildcard(alias);
+ return 1;
+ }
+-ADD_TO_DEVTABLE("parisc", parisc_device_id, do_parisc_entry);
+
+ /* Looks like: sdio:cNvNdN. */
+ static int do_sdio_entry(const char *filename,
+@@ -867,7 +804,6 @@ static int do_sdio_entry(const char *filename,
+ add_wildcard(alias);
+ return 1;
+ }
+-ADD_TO_DEVTABLE("sdio", sdio_device_id, do_sdio_entry);
+
+ /* Looks like: ssb:vNidNrevN. */
+ static int do_ssb_entry(const char *filename,
+@@ -884,7 +820,6 @@ static int do_ssb_entry(const char *filename,
+ add_wildcard(alias);
+ return 1;
+ }
+-ADD_TO_DEVTABLE("ssb", ssb_device_id, do_ssb_entry);
+
+ /* Looks like: bcma:mNidNrevNclN. */
+ static int do_bcma_entry(const char *filename,
+@@ -903,7 +838,6 @@ static int do_bcma_entry(const char *filename,
+ add_wildcard(alias);
+ return 1;
+ }
+-ADD_TO_DEVTABLE("bcma", bcma_device_id, do_bcma_entry);
+
+ /* Looks like: virtio:dNvN */
+ static int do_virtio_entry(const char *filename, void *symval,
+@@ -919,7 +853,6 @@ static int do_virtio_entry(const char *filename, void *symval,
+ add_wildcard(alias);
+ return 1;
+ }
+-ADD_TO_DEVTABLE("virtio", virtio_device_id, do_virtio_entry);
+
+ /*
+ * Looks like: vmbus:guid
+@@ -942,7 +875,6 @@ static int do_vmbus_entry(const char *filename, void *symval,
+
+ return 1;
+ }
+-ADD_TO_DEVTABLE("vmbus", hv_vmbus_device_id, do_vmbus_entry);
+
+ /* Looks like: rpmsg:S */
+ static int do_rpmsg_entry(const char *filename, void *symval,
+@@ -953,7 +885,6 @@ static int do_rpmsg_entry(const char *filename, void *symval,
+
+ return 1;
+ }
+-ADD_TO_DEVTABLE("rpmsg", rpmsg_device_id, do_rpmsg_entry);
+
+ /* Looks like: i2c:S */
+ static int do_i2c_entry(const char *filename, void *symval,
+@@ -964,7 +895,6 @@ static int do_i2c_entry(const char *filename, void *symval,
+
+ return 1;
+ }
+-ADD_TO_DEVTABLE("i2c", i2c_device_id, do_i2c_entry);
+
+ /* Looks like: spi:S */
+ static int do_spi_entry(const char *filename, void *symval,
+@@ -975,7 +905,6 @@ static int do_spi_entry(const char *filename, void *symval,
+
+ return 1;
+ }
+-ADD_TO_DEVTABLE("spi", spi_device_id, do_spi_entry);
+
+ static const struct dmifield {
+ const char *prefix;
+@@ -1030,7 +959,6 @@ static int do_dmi_entry(const char *filename, void *symval,
+ strcat(alias, ":");
+ return 1;
+ }
+-ADD_TO_DEVTABLE("dmi", dmi_system_id, do_dmi_entry);
+
+ static int do_platform_entry(const char *filename,
+ void *symval, char *alias)
+@@ -1039,7 +967,6 @@ static int do_platform_entry(const char *filename,
+ sprintf(alias, PLATFORM_MODULE_PREFIX "%s", *name);
+ return 1;
+ }
+-ADD_TO_DEVTABLE("platform", platform_device_id, do_platform_entry);
+
+ static int do_mdio_entry(const char *filename,
+ void *symval, char *alias)
+@@ -1064,7 +991,6 @@ static int do_mdio_entry(const char *filename,
+
+ return 1;
+ }
+-ADD_TO_DEVTABLE("mdio", mdio_device_id, do_mdio_entry);
+
+ /* Looks like: zorro:iN. */
+ static int do_zorro_entry(const char *filename, void *symval,
+@@ -1075,7 +1001,6 @@ static int do_zorro_entry(const char *filename, void *symval,
+ ADD(alias, "i", id != ZORRO_WILDCARD, id);
+ return 1;
+ }
+-ADD_TO_DEVTABLE("zorro", zorro_device_id, do_zorro_entry);
+
+ /* looks like: "pnp:dD" */
+ static int do_isapnp_entry(const char *filename,
+@@ -1091,7 +1016,6 @@ static int do_isapnp_entry(const char *filename,
+ (function >> 12) & 0x0f, (function >> 8) & 0x0f);
+ return 1;
+ }
+-ADD_TO_DEVTABLE("isapnp", isapnp_device_id, do_isapnp_entry);
+
+ /* Looks like: "ipack:fNvNdN". */
+ static int do_ipack_entry(const char *filename,
+@@ -1107,7 +1031,6 @@ static int do_ipack_entry(const char *filename,
+ add_wildcard(alias);
+ return 1;
+ }
+-ADD_TO_DEVTABLE("ipack", ipack_device_id, do_ipack_entry);
+
+ /*
+ * Append a match expression for a single masked hex digit.
+@@ -1178,7 +1101,6 @@ static int do_amba_entry(const char *filename,
+
+ return 1;
+ }
+-ADD_TO_DEVTABLE("amba", amba_id, do_amba_entry);
+
+ /*
+ * looks like: "mipscdmm:tN"
+@@ -1194,7 +1116,6 @@ static int do_mips_cdmm_entry(const char *filename,
+ sprintf(alias, "mipscdmm:t%02X*", type);
+ return 1;
+ }
+-ADD_TO_DEVTABLE("mipscdmm", mips_cdmm_device_id, do_mips_cdmm_entry);
+
+ /* LOOKS like cpu:type:x86,venVVVVfamFFFFmodMMMM:feature:*,FEAT,*
+ * All fields are numbers. It would be nicer to use strings for vendor
+@@ -1219,7 +1140,6 @@ static int do_x86cpu_entry(const char *filename, void *symval,
+ sprintf(alias + strlen(alias), "%04X*", feature);
+ return 1;
+ }
+-ADD_TO_DEVTABLE("x86cpu", x86_cpu_id, do_x86cpu_entry);
+
+ /* LOOKS like cpu:type:*:feature:*FEAT* */
+ static int do_cpu_entry(const char *filename, void *symval, char *alias)
+@@ -1229,7 +1149,6 @@ static int do_cpu_entry(const char *filename, void *symval, char *alias)
+ sprintf(alias, "cpu:type:*:feature:*%04X*", feature);
+ return 1;
+ }
+-ADD_TO_DEVTABLE("cpu", cpu_feature, do_cpu_entry);
+
+ /* Looks like: mei:S:uuid:N:* */
+ static int do_mei_entry(const char *filename, void *symval,
+@@ -1248,7 +1167,6 @@ static int do_mei_entry(const char *filename, void *symval,
+
+ return 1;
+ }
+-ADD_TO_DEVTABLE("mei", mei_cl_device_id, do_mei_entry);
+
+ /* Looks like: rapidio:vNdNavNadN */
+ static int do_rio_entry(const char *filename,
+@@ -1268,7 +1186,6 @@ static int do_rio_entry(const char *filename,
+ add_wildcard(alias);
+ return 1;
+ }
+-ADD_TO_DEVTABLE("rapidio", rio_device_id, do_rio_entry);
+
+ /* Looks like: ulpi:vNpN */
+ static int do_ulpi_entry(const char *filename, void *symval,
+@@ -1281,7 +1198,6 @@ static int do_ulpi_entry(const char *filename, void *symval,
+
+ return 1;
+ }
+-ADD_TO_DEVTABLE("ulpi", ulpi_device_id, do_ulpi_entry);
+
+ /* Looks like: hdaudio:vNrNaN */
+ static int do_hda_entry(const char *filename, void *symval, char *alias)
+@@ -1298,7 +1214,6 @@ static int do_hda_entry(const char *filename, void *symval, char *alias)
+ add_wildcard(alias);
+ return 1;
+ }
+-ADD_TO_DEVTABLE("hdaudio", hda_device_id, do_hda_entry);
+
+ /* Looks like: sdw:mNpN */
+ static int do_sdw_entry(const char *filename, void *symval, char *alias)
+@@ -1313,7 +1228,6 @@ static int do_sdw_entry(const char *filename, void *symval, char *alias)
+ add_wildcard(alias);
+ return 1;
+ }
+-ADD_TO_DEVTABLE("sdw", sdw_device_id, do_sdw_entry);
+
+ /* Looks like: fsl-mc:vNdN */
+ static int do_fsl_mc_entry(const char *filename, void *symval,
+@@ -1325,7 +1239,6 @@ static int do_fsl_mc_entry(const char *filename, void *symval,
+ sprintf(alias, "fsl-mc:v%08Xd%s", vendor, *obj_type);
+ return 1;
+ }
+-ADD_TO_DEVTABLE("fslmc", fsl_mc_device_id, do_fsl_mc_entry);
+
+ /* Looks like: tbsvc:kSpNvNrN */
+ static int do_tbsvc_entry(const char *filename, void *symval, char *alias)
+@@ -1350,7 +1263,6 @@ static int do_tbsvc_entry(const char *filename, void *symval, char *alias)
+ add_wildcard(alias);
+ return 1;
+ }
+-ADD_TO_DEVTABLE("tbsvc", tb_service_id, do_tbsvc_entry);
+
+ /* Looks like: typec:idNmN */
+ static int do_typec_entry(const char *filename, void *symval, char *alias)
+@@ -1363,7 +1275,6 @@ static int do_typec_entry(const char *filename, void *symval, char *alias)
+
+ return 1;
+ }
+-ADD_TO_DEVTABLE("typec", typec_device_id, do_typec_entry);
+
+ /* Does namelen bytes of name exactly match the symbol? */
+ static bool sym_is(const char *name, unsigned namelen, const char *symbol)
+@@ -1377,12 +1288,11 @@ static bool sym_is(const char *name, unsigned namelen, const char *symbol)
+ static void do_table(void *symval, unsigned long size,
+ unsigned long id_size,
+ const char *device_id,
+- void *function,
++ int (*do_entry)(const char *filename, void *symval, char *alias),
+ struct module *mod)
+ {
+ unsigned int i;
+ char alias[500];
+- int (*do_entry)(const char *, void *entry, char *alias) = function;
+
+ device_id_check(mod->name, device_id, size, id_size, symval);
+ /* Leave last one: it's the terminator. */
+@@ -1396,6 +1306,48 @@ static void do_table(void *symval, unsigned long size,
+ }
+ }
+
++static const struct devtable devtable[] = {
++ {"hid", SIZE_hid_device_id, do_hid_entry},
++ {"ieee1394", SIZE_ieee1394_device_id, do_ieee1394_entry},
++ {"pci", SIZE_pci_device_id, do_pci_entry},
++ {"ccw", SIZE_ccw_device_id, do_ccw_entry},
++ {"ap", SIZE_ap_device_id, do_ap_entry},
++ {"css", SIZE_css_device_id, do_css_entry},
++ {"serio", SIZE_serio_device_id, do_serio_entry},
++ {"acpi", SIZE_acpi_device_id, do_acpi_entry},
++ {"pcmcia", SIZE_pcmcia_device_id, do_pcmcia_entry},
++ {"vio", SIZE_vio_device_id, do_vio_entry},
++ {"input", SIZE_input_device_id, do_input_entry},
++ {"eisa", SIZE_eisa_device_id, do_eisa_entry},
++ {"parisc", SIZE_parisc_device_id, do_parisc_entry},
++ {"sdio", SIZE_sdio_device_id, do_sdio_entry},
++ {"ssb", SIZE_ssb_device_id, do_ssb_entry},
++ {"bcma", SIZE_bcma_device_id, do_bcma_entry},
++ {"virtio", SIZE_virtio_device_id, do_virtio_entry},
++ {"vmbus", SIZE_hv_vmbus_device_id, do_vmbus_entry},
++ {"rpmsg", SIZE_rpmsg_device_id, do_rpmsg_entry},
++ {"i2c", SIZE_i2c_device_id, do_i2c_entry},
++ {"spi", SIZE_spi_device_id, do_spi_entry},
++ {"dmi", SIZE_dmi_system_id, do_dmi_entry},
++ {"platform", SIZE_platform_device_id, do_platform_entry},
++ {"mdio", SIZE_mdio_device_id, do_mdio_entry},
++ {"zorro", SIZE_zorro_device_id, do_zorro_entry},
++ {"isapnp", SIZE_isapnp_device_id, do_isapnp_entry},
++ {"ipack", SIZE_ipack_device_id, do_ipack_entry},
++ {"amba", SIZE_amba_id, do_amba_entry},
++ {"mipscdmm", SIZE_mips_cdmm_device_id, do_mips_cdmm_entry},
++ {"x86cpu", SIZE_x86_cpu_id, do_x86cpu_entry},
++ {"cpu", SIZE_cpu_feature, do_cpu_entry},
++ {"mei", SIZE_mei_cl_device_id, do_mei_entry},
++ {"rapidio", SIZE_rio_device_id, do_rio_entry},
++ {"ulpi", SIZE_ulpi_device_id, do_ulpi_entry},
++ {"hdaudio", SIZE_hda_device_id, do_hda_entry},
++ {"sdw", SIZE_sdw_device_id, do_sdw_entry},
++ {"fslmc", SIZE_fsl_mc_device_id, do_fsl_mc_entry},
++ {"tbsvc", SIZE_tb_service_id, do_tbsvc_entry},
++ {"typec", SIZE_typec_device_id, do_typec_entry},
++};
++
+ /* Create MODULE_ALIAS() statements.
+ * At this time, we cannot write the actual output C source yet,
+ * so we write into the mod->dev_table_buf buffer. */
+@@ -1450,13 +1402,14 @@ void handle_moddevtable(struct module *mod, struct elf_info *info,
+ else if (sym_is(name, namelen, "pnp_card"))
+ do_pnp_card_entries(symval, sym->st_size, mod);
+ else {
+- struct devtable **p;
+- INIT_SECTION(__devtable);
++ int i;
++
++ for (i = 0; i < ARRAY_SIZE(devtable); i++) {
++ const struct devtable *p = &devtable[i];
+
+- for (p = __start___devtable; p < __stop___devtable; p++) {
+- if (sym_is(name, namelen, (*p)->device_id)) {
+- do_table(symval, sym->st_size, (*p)->id_size,
+- (*p)->device_id, (*p)->function, mod);
++ if (sym_is(name, namelen, p->device_id)) {
++ do_table(symval, sym->st_size, p->id_size,
++ p->device_id, p->do_entry, mod);
+ break;
+ }
+ }
+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 bd60eb7168fa..0a745d677b1c 100644
+--- a/sound/pci/hda/patch_realtek.c
++++ b/sound/pci/hda/patch_realtek.c
+@@ -7170,6 +7170,8 @@ 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}),
+@@ -7280,6 +7282,10 @@ 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},
+diff --git a/sound/soc/rockchip/rockchip_pcm.c b/sound/soc/rockchip/rockchip_pcm.c
+index 7029e0b85f9e..4ac78d7a4b2d 100644
+--- a/sound/soc/rockchip/rockchip_pcm.c
++++ b/sound/soc/rockchip/rockchip_pcm.c
+@@ -21,7 +21,8 @@ static const struct snd_pcm_hardware snd_rockchip_hardware = {
+ .info = SNDRV_PCM_INFO_MMAP |
+ SNDRV_PCM_INFO_MMAP_VALID |
+ SNDRV_PCM_INFO_PAUSE |
+- SNDRV_PCM_INFO_RESUME,
++ SNDRV_PCM_INFO_RESUME |
++ SNDRV_PCM_INFO_INTERLEAVED,
+ .period_bytes_min = 32,
+ .period_bytes_max = 8192,
+ .periods_min = 1,
+diff --git a/tools/include/linux/bitops.h b/tools/include/linux/bitops.h
+index acc704bd3998..0b0ef3abc966 100644
+--- a/tools/include/linux/bitops.h
++++ b/tools/include/linux/bitops.h
+@@ -3,8 +3,6 @@
+ #define _TOOLS_LINUX_BITOPS_H_
+
+ #include <asm/types.h>
+-#include <linux/compiler.h>
+-
+ #ifndef __WORDSIZE
+ #define __WORDSIZE (__SIZEOF_LONG__ * 8)
+ #endif
+@@ -12,10 +10,9 @@
+ #ifndef BITS_PER_LONG
+ # define BITS_PER_LONG __WORDSIZE
+ #endif
++#include <linux/bits.h>
++#include <linux/compiler.h>
+
+-#define BIT_MASK(nr) (1UL << ((nr) % BITS_PER_LONG))
+-#define BIT_WORD(nr) ((nr) / BITS_PER_LONG)
+-#define BITS_PER_BYTE 8
+ #define BITS_TO_LONGS(nr) DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(long))
+ #define BITS_TO_U64(nr) DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(u64))
+ #define BITS_TO_U32(nr) DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(u32))
+diff --git a/tools/include/linux/bits.h b/tools/include/linux/bits.h
+new file mode 100644
+index 000000000000..2b7b532c1d51
+--- /dev/null
++++ b/tools/include/linux/bits.h
+@@ -0,0 +1,26 @@
++/* SPDX-License-Identifier: GPL-2.0 */
++#ifndef __LINUX_BITS_H
++#define __LINUX_BITS_H
++#include <asm/bitsperlong.h>
++
++#define BIT(nr) (1UL << (nr))
++#define BIT_ULL(nr) (1ULL << (nr))
++#define BIT_MASK(nr) (1UL << ((nr) % BITS_PER_LONG))
++#define BIT_WORD(nr) ((nr) / BITS_PER_LONG)
++#define BIT_ULL_MASK(nr) (1ULL << ((nr) % BITS_PER_LONG_LONG))
++#define BIT_ULL_WORD(nr) ((nr) / BITS_PER_LONG_LONG)
++#define BITS_PER_BYTE 8
++
++/*
++ * Create a contiguous bitmask starting at bit position @l and ending at
++ * position @h. For example
++ * GENMASK_ULL(39, 21) gives us the 64bit vector 0x000000ffffe00000.
++ */
++#define GENMASK(h, l) \
++ (((~0UL) - (1UL << (l)) + 1) & (~0UL >> (BITS_PER_LONG - 1 - (h))))
++
++#define GENMASK_ULL(h, l) \
++ (((~0ULL) - (1ULL << (l)) + 1) & \
++ (~0ULL >> (BITS_PER_LONG_LONG - 1 - (h))))
++
++#endif /* __LINUX_BITS_H */
+diff --git a/tools/perf/check-headers.sh b/tools/perf/check-headers.sh
+index 466540ee8ea7..c72cc73a6b09 100755
+--- a/tools/perf/check-headers.sh
++++ b/tools/perf/check-headers.sh
+@@ -14,6 +14,7 @@ include/uapi/linux/sched.h
+ include/uapi/linux/stat.h
+ include/uapi/linux/vhost.h
+ include/uapi/sound/asound.h
++include/linux/bits.h
+ include/linux/hash.h
+ include/uapi/linux/hw_breakpoint.h
+ arch/x86/include/asm/disabled-features.h
next reply other threads:[~2019-04-27 17:36 UTC|newest]
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