[gentoo-commits] proj/linux-patches:5.4 commit in: /

[Mike Pagano]

commit:     6b83990b35d00daf19790e5ed53c976672be9481
Author:     Mike Pagano <mpagano <AT> gentoo <DOT> org>
AuthorDate: Thu May 14 11:31:58 2020 +0000
Commit:     Mike Pagano <mpagano <AT> gentoo <DOT> org>
CommitDate: Thu May 14 11:31:58 2020 +0000
URL:        https://gitweb.gentoo.org/proj/linux-patches.git/commit/?id=6b83990b

Linux patch 5.4.41

Signed-off-by: Mike Pagano <mpagano <AT> gentoo.org>

 0000_README             |    4 +
 1040_linux-5.4.41.patch | 2828 +++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 2832 insertions(+)

diff --git a/0000_README b/0000_README
index ed1776e..e6a9058 100644
--- a/0000_README
+++ b/0000_README
@@ -203,6 +203,10 @@ Patch:  1039_linux-5.4.40.patch
 From:   http://www.kernel.org
 Desc:   Linux 5.4.40
 
+Patch:  1040_linux-5.4.41.patch
+From:   http://www.kernel.org
+Desc:   Linux 5.4.41
+
 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/1040_linux-5.4.41.patch b/1040_linux-5.4.41.patch
new file mode 100644
index 0000000..50cddb8
--- /dev/null
+++ b/1040_linux-5.4.41.patch
@@ -0,0 +1,2828 @@
+diff --git a/Makefile b/Makefile
+index 6d4fca82529a..a8c772b299aa 100644
+--- a/Makefile
++++ b/Makefile
+@@ -1,7 +1,7 @@
+ # SPDX-License-Identifier: GPL-2.0
+ VERSION = 5
+ PATCHLEVEL = 4
+-SUBLEVEL = 40
++SUBLEVEL = 41
+ EXTRAVERSION =
+ NAME = Kleptomaniac Octopus
+ 
+diff --git a/arch/arm/crypto/nhpoly1305-neon-glue.c b/arch/arm/crypto/nhpoly1305-neon-glue.c
+index ae5aefc44a4d..ffa8d73fe722 100644
+--- a/arch/arm/crypto/nhpoly1305-neon-glue.c
++++ b/arch/arm/crypto/nhpoly1305-neon-glue.c
+@@ -30,7 +30,7 @@ static int nhpoly1305_neon_update(struct shash_desc *desc,
+ 		return crypto_nhpoly1305_update(desc, src, srclen);
+ 
+ 	do {
+-		unsigned int n = min_t(unsigned int, srclen, PAGE_SIZE);
++		unsigned int n = min_t(unsigned int, srclen, SZ_4K);
+ 
+ 		kernel_neon_begin();
+ 		crypto_nhpoly1305_update_helper(desc, src, n, _nh_neon);
+diff --git a/arch/arm64/crypto/nhpoly1305-neon-glue.c b/arch/arm64/crypto/nhpoly1305-neon-glue.c
+index 895d3727c1fb..c5405e6a6db7 100644
+--- a/arch/arm64/crypto/nhpoly1305-neon-glue.c
++++ b/arch/arm64/crypto/nhpoly1305-neon-glue.c
+@@ -30,7 +30,7 @@ static int nhpoly1305_neon_update(struct shash_desc *desc,
+ 		return crypto_nhpoly1305_update(desc, src, srclen);
+ 
+ 	do {
+-		unsigned int n = min_t(unsigned int, srclen, PAGE_SIZE);
++		unsigned int n = min_t(unsigned int, srclen, SZ_4K);
+ 
+ 		kernel_neon_begin();
+ 		crypto_nhpoly1305_update_helper(desc, src, n, _nh_neon);
+diff --git a/arch/arm64/kvm/guest.c b/arch/arm64/kvm/guest.c
+index dfd626447482..5271ab366bee 100644
+--- a/arch/arm64/kvm/guest.c
++++ b/arch/arm64/kvm/guest.c
+@@ -202,6 +202,13 @@ static int set_core_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg)
+ 	}
+ 
+ 	memcpy((u32 *)regs + off, valp, KVM_REG_SIZE(reg->id));
++
++	if (*vcpu_cpsr(vcpu) & PSR_MODE32_BIT) {
++		int i;
++
++		for (i = 0; i < 16; i++)
++			*vcpu_reg32(vcpu, i) = (u32)*vcpu_reg32(vcpu, i);
++	}
+ out:
+ 	return err;
+ }
+diff --git a/arch/arm64/mm/hugetlbpage.c b/arch/arm64/mm/hugetlbpage.c
+index bbeb6a5a6ba6..0be3355e3499 100644
+--- a/arch/arm64/mm/hugetlbpage.c
++++ b/arch/arm64/mm/hugetlbpage.c
+@@ -230,6 +230,8 @@ pte_t *huge_pte_alloc(struct mm_struct *mm,
+ 		ptep = (pte_t *)pudp;
+ 	} else if (sz == (CONT_PTE_SIZE)) {
+ 		pmdp = pmd_alloc(mm, pudp, addr);
++		if (!pmdp)
++			return NULL;
+ 
+ 		WARN_ON(addr & (sz - 1));
+ 		/*
+diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c
+index f5d813c1304d..319812923012 100644
+--- a/arch/riscv/mm/init.c
++++ b/arch/riscv/mm/init.c
+@@ -116,7 +116,8 @@ void __init setup_bootmem(void)
+ 	memblock_reserve(vmlinux_start, vmlinux_end - vmlinux_start);
+ 
+ 	set_max_mapnr(PFN_DOWN(mem_size));
+-	max_low_pfn = PFN_DOWN(memblock_end_of_DRAM());
++	max_pfn = PFN_DOWN(memblock_end_of_DRAM());
++	max_low_pfn = max_pfn;
+ 
+ #ifdef CONFIG_BLK_DEV_INITRD
+ 	setup_initrd();
+diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c
+index ed52ffa8d5d4..560310e29e27 100644
+--- a/arch/s390/kvm/priv.c
++++ b/arch/s390/kvm/priv.c
+@@ -626,10 +626,12 @@ static int handle_pqap(struct kvm_vcpu *vcpu)
+ 	 * available for the guest are AQIC and TAPQ with the t bit set
+ 	 * since we do not set IC.3 (FIII) we currently will only intercept
+ 	 * the AQIC function code.
++	 * Note: running nested under z/VM can result in intercepts for other
++	 * function codes, e.g. PQAP(QCI). We do not support this and bail out.
+ 	 */
+ 	reg0 = vcpu->run->s.regs.gprs[0];
+ 	fc = (reg0 >> 24) & 0xff;
+-	if (WARN_ON_ONCE(fc != 0x03))
++	if (fc != 0x03)
+ 		return -EOPNOTSUPP;
+ 
+ 	/* PQAP instruction is allowed for guest kernel only */
+diff --git a/arch/x86/crypto/nhpoly1305-avx2-glue.c b/arch/x86/crypto/nhpoly1305-avx2-glue.c
+index f7567cbd35b6..80fcb85736e1 100644
+--- a/arch/x86/crypto/nhpoly1305-avx2-glue.c
++++ b/arch/x86/crypto/nhpoly1305-avx2-glue.c
+@@ -29,7 +29,7 @@ static int nhpoly1305_avx2_update(struct shash_desc *desc,
+ 		return crypto_nhpoly1305_update(desc, src, srclen);
+ 
+ 	do {
+-		unsigned int n = min_t(unsigned int, srclen, PAGE_SIZE);
++		unsigned int n = min_t(unsigned int, srclen, SZ_4K);
+ 
+ 		kernel_fpu_begin();
+ 		crypto_nhpoly1305_update_helper(desc, src, n, _nh_avx2);
+diff --git a/arch/x86/crypto/nhpoly1305-sse2-glue.c b/arch/x86/crypto/nhpoly1305-sse2-glue.c
+index a661ede3b5cf..cc6b7c1a2705 100644
+--- a/arch/x86/crypto/nhpoly1305-sse2-glue.c
++++ b/arch/x86/crypto/nhpoly1305-sse2-glue.c
+@@ -29,7 +29,7 @@ static int nhpoly1305_sse2_update(struct shash_desc *desc,
+ 		return crypto_nhpoly1305_update(desc, src, srclen);
+ 
+ 	do {
+-		unsigned int n = min_t(unsigned int, srclen, PAGE_SIZE);
++		unsigned int n = min_t(unsigned int, srclen, SZ_4K);
+ 
+ 		kernel_fpu_begin();
+ 		crypto_nhpoly1305_update_helper(desc, src, n, _nh_sse2);
+diff --git a/arch/x86/entry/calling.h b/arch/x86/entry/calling.h
+index 515c0ceeb4a3..b3f121478738 100644
+--- a/arch/x86/entry/calling.h
++++ b/arch/x86/entry/calling.h
+@@ -98,13 +98,6 @@ For 32-bit we have the following conventions - kernel is built with
+ #define SIZEOF_PTREGS	21*8
+ 
+ .macro PUSH_AND_CLEAR_REGS rdx=%rdx rax=%rax save_ret=0
+-	/*
+-	 * Push registers and sanitize registers of values that a
+-	 * speculation attack might otherwise want to exploit. The
+-	 * lower registers are likely clobbered well before they
+-	 * could be put to use in a speculative execution gadget.
+-	 * Interleave XOR with PUSH for better uop scheduling:
+-	 */
+ 	.if \save_ret
+ 	pushq	%rsi		/* pt_regs->si */
+ 	movq	8(%rsp), %rsi	/* temporarily store the return address in %rsi */
+@@ -114,34 +107,43 @@ For 32-bit we have the following conventions - kernel is built with
+ 	pushq   %rsi		/* pt_regs->si */
+ 	.endif
+ 	pushq	\rdx		/* pt_regs->dx */
+-	xorl	%edx, %edx	/* nospec   dx */
+ 	pushq   %rcx		/* pt_regs->cx */
+-	xorl	%ecx, %ecx	/* nospec   cx */
+ 	pushq   \rax		/* pt_regs->ax */
+ 	pushq   %r8		/* pt_regs->r8 */
+-	xorl	%r8d, %r8d	/* nospec   r8 */
+ 	pushq   %r9		/* pt_regs->r9 */
+-	xorl	%r9d, %r9d	/* nospec   r9 */
+ 	pushq   %r10		/* pt_regs->r10 */
+-	xorl	%r10d, %r10d	/* nospec   r10 */
+ 	pushq   %r11		/* pt_regs->r11 */
+-	xorl	%r11d, %r11d	/* nospec   r11*/
+ 	pushq	%rbx		/* pt_regs->rbx */
+-	xorl    %ebx, %ebx	/* nospec   rbx*/
+ 	pushq	%rbp		/* pt_regs->rbp */
+-	xorl    %ebp, %ebp	/* nospec   rbp*/
+ 	pushq	%r12		/* pt_regs->r12 */
+-	xorl	%r12d, %r12d	/* nospec   r12*/
+ 	pushq	%r13		/* pt_regs->r13 */
+-	xorl	%r13d, %r13d	/* nospec   r13*/
+ 	pushq	%r14		/* pt_regs->r14 */
+-	xorl	%r14d, %r14d	/* nospec   r14*/
+ 	pushq	%r15		/* pt_regs->r15 */
+-	xorl	%r15d, %r15d	/* nospec   r15*/
+ 	UNWIND_HINT_REGS
++
+ 	.if \save_ret
+ 	pushq	%rsi		/* return address on top of stack */
+ 	.endif
++
++	/*
++	 * Sanitize registers of values that a speculation attack might
++	 * otherwise want to exploit. The lower registers are likely clobbered
++	 * well before they could be put to use in a speculative execution
++	 * gadget.
++	 */
++	xorl	%edx,  %edx	/* nospec dx  */
++	xorl	%ecx,  %ecx	/* nospec cx  */
++	xorl	%r8d,  %r8d	/* nospec r8  */
++	xorl	%r9d,  %r9d	/* nospec r9  */
++	xorl	%r10d, %r10d	/* nospec r10 */
++	xorl	%r11d, %r11d	/* nospec r11 */
++	xorl	%ebx,  %ebx	/* nospec rbx */
++	xorl	%ebp,  %ebp	/* nospec rbp */
++	xorl	%r12d, %r12d	/* nospec r12 */
++	xorl	%r13d, %r13d	/* nospec r13 */
++	xorl	%r14d, %r14d	/* nospec r14 */
++	xorl	%r15d, %r15d	/* nospec r15 */
++
+ .endm
+ 
+ .macro POP_REGS pop_rdi=1 skip_r11rcx=0
+diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S
+index b7c3ea4cb19d..2ba3d53ac5b1 100644
+--- a/arch/x86/entry/entry_64.S
++++ b/arch/x86/entry/entry_64.S
+@@ -249,7 +249,6 @@ GLOBAL(entry_SYSCALL_64_after_hwframe)
+ 	 */
+ syscall_return_via_sysret:
+ 	/* rcx and r11 are already restored (see code above) */
+-	UNWIND_HINT_EMPTY
+ 	POP_REGS pop_rdi=0 skip_r11rcx=1
+ 
+ 	/*
+@@ -258,6 +257,7 @@ syscall_return_via_sysret:
+ 	 */
+ 	movq	%rsp, %rdi
+ 	movq	PER_CPU_VAR(cpu_tss_rw + TSS_sp0), %rsp
++	UNWIND_HINT_EMPTY
+ 
+ 	pushq	RSP-RDI(%rdi)	/* RSP */
+ 	pushq	(%rdi)		/* RDI */
+@@ -512,7 +512,7 @@ END(spurious_entries_start)
+  * +----------------------------------------------------+
+  */
+ ENTRY(interrupt_entry)
+-	UNWIND_HINT_FUNC
++	UNWIND_HINT_IRET_REGS offset=16
+ 	ASM_CLAC
+ 	cld
+ 
+@@ -544,9 +544,9 @@ ENTRY(interrupt_entry)
+ 	pushq	5*8(%rdi)		/* regs->eflags */
+ 	pushq	4*8(%rdi)		/* regs->cs */
+ 	pushq	3*8(%rdi)		/* regs->ip */
++	UNWIND_HINT_IRET_REGS
+ 	pushq	2*8(%rdi)		/* regs->orig_ax */
+ 	pushq	8(%rdi)			/* return address */
+-	UNWIND_HINT_FUNC
+ 
+ 	movq	(%rdi), %rdi
+ 	jmp	2f
+@@ -637,6 +637,7 @@ GLOBAL(swapgs_restore_regs_and_return_to_usermode)
+ 	 */
+ 	movq	%rsp, %rdi
+ 	movq	PER_CPU_VAR(cpu_tss_rw + TSS_sp0), %rsp
++	UNWIND_HINT_EMPTY
+ 
+ 	/* Copy the IRET frame to the trampoline stack. */
+ 	pushq	6*8(%rdi)	/* SS */
+@@ -1739,7 +1740,7 @@ ENTRY(rewind_stack_do_exit)
+ 
+ 	movq	PER_CPU_VAR(cpu_current_top_of_stack), %rax
+ 	leaq	-PTREGS_SIZE(%rax), %rsp
+-	UNWIND_HINT_FUNC sp_offset=PTREGS_SIZE
++	UNWIND_HINT_REGS
+ 
+ 	call	do_exit
+ END(rewind_stack_do_exit)
+diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
+index 380cee9bc175..f5341edbfa16 100644
+--- a/arch/x86/include/asm/kvm_host.h
++++ b/arch/x86/include/asm/kvm_host.h
+@@ -1608,8 +1608,8 @@ void kvm_set_msi_irq(struct kvm *kvm, struct kvm_kernel_irq_routing_entry *e,
+ static inline bool kvm_irq_is_postable(struct kvm_lapic_irq *irq)
+ {
+ 	/* We can only post Fixed and LowPrio IRQs */
+-	return (irq->delivery_mode == dest_Fixed ||
+-		irq->delivery_mode == dest_LowestPrio);
++	return (irq->delivery_mode == APIC_DM_FIXED ||
++		irq->delivery_mode == APIC_DM_LOWEST);
+ }
+ 
+ static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu)
+diff --git a/arch/x86/include/asm/unwind.h b/arch/x86/include/asm/unwind.h
+index 499578f7e6d7..70fc159ebe69 100644
+--- a/arch/x86/include/asm/unwind.h
++++ b/arch/x86/include/asm/unwind.h
+@@ -19,7 +19,7 @@ struct unwind_state {
+ #if defined(CONFIG_UNWINDER_ORC)
+ 	bool signal, full_regs;
+ 	unsigned long sp, bp, ip;
+-	struct pt_regs *regs;
++	struct pt_regs *regs, *prev_regs;
+ #elif defined(CONFIG_UNWINDER_FRAME_POINTER)
+ 	bool got_irq;
+ 	unsigned long *bp, *orig_sp, ip;
+diff --git a/arch/x86/kernel/unwind_orc.c b/arch/x86/kernel/unwind_orc.c
+index 332ae6530fa8..fb37221a1532 100644
+--- a/arch/x86/kernel/unwind_orc.c
++++ b/arch/x86/kernel/unwind_orc.c
+@@ -142,9 +142,6 @@ static struct orc_entry *orc_find(unsigned long ip)
+ {
+ 	static struct orc_entry *orc;
+ 
+-	if (!orc_init)
+-		return NULL;
+-
+ 	if (ip == 0)
+ 		return &null_orc_entry;
+ 
+@@ -378,9 +375,38 @@ static bool deref_stack_iret_regs(struct unwind_state *state, unsigned long addr
+ 	return true;
+ }
+ 
++/*
++ * If state->regs is non-NULL, and points to a full pt_regs, just get the reg
++ * value from state->regs.
++ *
++ * Otherwise, if state->regs just points to IRET regs, and the previous frame
++ * had full regs, it's safe to get the value from the previous regs.  This can
++ * happen when early/late IRQ entry code gets interrupted by an NMI.
++ */
++static bool get_reg(struct unwind_state *state, unsigned int reg_off,
++		    unsigned long *val)
++{
++	unsigned int reg = reg_off/8;
++
++	if (!state->regs)
++		return false;
++
++	if (state->full_regs) {
++		*val = ((unsigned long *)state->regs)[reg];
++		return true;
++	}
++
++	if (state->prev_regs) {
++		*val = ((unsigned long *)state->prev_regs)[reg];
++		return true;
++	}
++
++	return false;
++}
++
+ bool unwind_next_frame(struct unwind_state *state)
+ {
+-	unsigned long ip_p, sp, orig_ip = state->ip, prev_sp = state->sp;
++	unsigned long ip_p, sp, tmp, orig_ip = state->ip, prev_sp = state->sp;
+ 	enum stack_type prev_type = state->stack_info.type;
+ 	struct orc_entry *orc;
+ 	bool indirect = false;
+@@ -442,39 +468,35 @@ bool unwind_next_frame(struct unwind_state *state)
+ 		break;
+ 
+ 	case ORC_REG_R10:
+-		if (!state->regs || !state->full_regs) {
++		if (!get_reg(state, offsetof(struct pt_regs, r10), &sp)) {
+ 			orc_warn("missing regs for base reg R10 at ip %pB\n",
+ 				 (void *)state->ip);
+ 			goto err;
+ 		}
+-		sp = state->regs->r10;
+ 		break;
+ 
+ 	case ORC_REG_R13:
+-		if (!state->regs || !state->full_regs) {
++		if (!get_reg(state, offsetof(struct pt_regs, r13), &sp)) {
+ 			orc_warn("missing regs for base reg R13 at ip %pB\n",
+ 				 (void *)state->ip);
+ 			goto err;
+ 		}
+-		sp = state->regs->r13;
+ 		break;
+ 
+ 	case ORC_REG_DI:
+-		if (!state->regs || !state->full_regs) {
++		if (!get_reg(state, offsetof(struct pt_regs, di), &sp)) {
+ 			orc_warn("missing regs for base reg DI at ip %pB\n",
+ 				 (void *)state->ip);
+ 			goto err;
+ 		}
+-		sp = state->regs->di;
+ 		break;
+ 
+ 	case ORC_REG_DX:
+-		if (!state->regs || !state->full_regs) {
++		if (!get_reg(state, offsetof(struct pt_regs, dx), &sp)) {
+ 			orc_warn("missing regs for base reg DX at ip %pB\n",
+ 				 (void *)state->ip);
+ 			goto err;
+ 		}
+-		sp = state->regs->dx;
+ 		break;
+ 
+ 	default:
+@@ -501,6 +523,7 @@ bool unwind_next_frame(struct unwind_state *state)
+ 
+ 		state->sp = sp;
+ 		state->regs = NULL;
++		state->prev_regs = NULL;
+ 		state->signal = false;
+ 		break;
+ 
+@@ -512,6 +535,7 @@ bool unwind_next_frame(struct unwind_state *state)
+ 		}
+ 
+ 		state->regs = (struct pt_regs *)sp;
++		state->prev_regs = NULL;
+ 		state->full_regs = true;
+ 		state->signal = true;
+ 		break;
+@@ -523,6 +547,8 @@ bool unwind_next_frame(struct unwind_state *state)
+ 			goto err;
+ 		}
+ 
++		if (state->full_regs)
++			state->prev_regs = state->regs;
+ 		state->regs = (void *)sp - IRET_FRAME_OFFSET;
+ 		state->full_regs = false;
+ 		state->signal = true;
+@@ -531,14 +557,14 @@ bool unwind_next_frame(struct unwind_state *state)
+ 	default:
+ 		orc_warn("unknown .orc_unwind entry type %d for ip %pB\n",
+ 			 orc->type, (void *)orig_ip);
+-		break;
++		goto err;
+ 	}
+ 
+ 	/* Find BP: */
+ 	switch (orc->bp_reg) {
+ 	case ORC_REG_UNDEFINED:
+-		if (state->regs && state->full_regs)
+-			state->bp = state->regs->bp;
++		if (get_reg(state, offsetof(struct pt_regs, bp), &tmp))
++			state->bp = tmp;
+ 		break;
+ 
+ 	case ORC_REG_PREV_SP:
+@@ -582,6 +608,9 @@ EXPORT_SYMBOL_GPL(unwind_next_frame);
+ void __unwind_start(struct unwind_state *state, struct task_struct *task,
+ 		    struct pt_regs *regs, unsigned long *first_frame)
+ {
++	if (!orc_init)
++		goto done;
++
+ 	memset(state, 0, sizeof(*state));
+ 	state->task = task;
+ 
+@@ -648,7 +677,7 @@ void __unwind_start(struct unwind_state *state, struct task_struct *task,
+ 	/* Otherwise, skip ahead to the user-specified starting frame: */
+ 	while (!unwind_done(state) &&
+ 	       (!on_stack(&state->stack_info, first_frame, sizeof(long)) ||
+-			state->sp <= (unsigned long)first_frame))
++			state->sp < (unsigned long)first_frame))
+ 		unwind_next_frame(state);
+ 
+ 	return;
+diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
+index 51ff6b342279..fda2126f9a97 100644
+--- a/arch/x86/kvm/svm.c
++++ b/arch/x86/kvm/svm.c
+@@ -1861,7 +1861,7 @@ static struct page **sev_pin_memory(struct kvm *kvm, unsigned long uaddr,
+ 		return NULL;
+ 
+ 	/* Pin the user virtual address. */
+-	npinned = get_user_pages_fast(uaddr, npages, FOLL_WRITE, pages);
++	npinned = get_user_pages_fast(uaddr, npages, write ? FOLL_WRITE : 0, pages);
+ 	if (npinned != npages) {
+ 		pr_err("SEV: Failure locking %lu pages.\n", npages);
+ 		goto err;
+diff --git a/arch/x86/kvm/vmx/vmenter.S b/arch/x86/kvm/vmx/vmenter.S
+index c7012f6c971c..ca4252f81bf8 100644
+--- a/arch/x86/kvm/vmx/vmenter.S
++++ b/arch/x86/kvm/vmx/vmenter.S
+@@ -86,6 +86,9 @@ ENTRY(vmx_vmexit)
+ 	/* IMPORTANT: Stuff the RSB immediately after VM-Exit, before RET! */
+ 	FILL_RETURN_BUFFER %_ASM_AX, RSB_CLEAR_LOOPS, X86_FEATURE_RETPOLINE
+ 
++	/* Clear RFLAGS.CF and RFLAGS.ZF to preserve VM-Exit, i.e. !VM-Fail. */
++	or $1, %_ASM_AX
++
+ 	pop %_ASM_AX
+ .Lvmexit_skip_rsb:
+ #endif
+diff --git a/block/blk-iocost.c b/block/blk-iocost.c
+index 2dc5dc54e257..d083f7704082 100644
+--- a/block/blk-iocost.c
++++ b/block/blk-iocost.c
+@@ -469,7 +469,7 @@ struct ioc_gq {
+ 	 */
+ 	atomic64_t			vtime;
+ 	atomic64_t			done_vtime;
+-	atomic64_t			abs_vdebt;
++	u64				abs_vdebt;
+ 	u64				last_vtime;
+ 
+ 	/*
+@@ -1145,7 +1145,7 @@ static void iocg_kick_waitq(struct ioc_gq *iocg, struct ioc_now *now)
+ 	struct iocg_wake_ctx ctx = { .iocg = iocg };
+ 	u64 margin_ns = (u64)(ioc->period_us *
+ 			      WAITQ_TIMER_MARGIN_PCT / 100) * NSEC_PER_USEC;
+-	u64 abs_vdebt, vdebt, vshortage, expires, oexpires;
++	u64 vdebt, vshortage, expires, oexpires;
+ 	s64 vbudget;
+ 	u32 hw_inuse;
+ 
+@@ -1155,18 +1155,15 @@ static void iocg_kick_waitq(struct ioc_gq *iocg, struct ioc_now *now)
+ 	vbudget = now->vnow - atomic64_read(&iocg->vtime);
+ 
+ 	/* pay off debt */
+-	abs_vdebt = atomic64_read(&iocg->abs_vdebt);
+-	vdebt = abs_cost_to_cost(abs_vdebt, hw_inuse);
++	vdebt = abs_cost_to_cost(iocg->abs_vdebt, hw_inuse);
+ 	if (vdebt && vbudget > 0) {
+ 		u64 delta = min_t(u64, vbudget, vdebt);
+ 		u64 abs_delta = min(cost_to_abs_cost(delta, hw_inuse),
+-				    abs_vdebt);
++				    iocg->abs_vdebt);
+ 
+ 		atomic64_add(delta, &iocg->vtime);
+ 		atomic64_add(delta, &iocg->done_vtime);
+-		atomic64_sub(abs_delta, &iocg->abs_vdebt);
+-		if (WARN_ON_ONCE(atomic64_read(&iocg->abs_vdebt) < 0))
+-			atomic64_set(&iocg->abs_vdebt, 0);
++		iocg->abs_vdebt -= abs_delta;
+ 	}
+ 
+ 	/*
+@@ -1222,12 +1219,18 @@ static bool iocg_kick_delay(struct ioc_gq *iocg, struct ioc_now *now, u64 cost)
+ 	u64 expires, oexpires;
+ 	u32 hw_inuse;
+ 
++	lockdep_assert_held(&iocg->waitq.lock);
++
+ 	/* debt-adjust vtime */
+ 	current_hweight(iocg, NULL, &hw_inuse);
+-	vtime += abs_cost_to_cost(atomic64_read(&iocg->abs_vdebt), hw_inuse);
++	vtime += abs_cost_to_cost(iocg->abs_vdebt, hw_inuse);
+ 
+-	/* clear or maintain depending on the overage */
+-	if (time_before_eq64(vtime, now->vnow)) {
++	/*
++	 * Clear or maintain depending on the overage. Non-zero vdebt is what
++	 * guarantees that @iocg is online and future iocg_kick_delay() will
++	 * clear use_delay. Don't leave it on when there's no vdebt.
++	 */
++	if (!iocg->abs_vdebt || time_before_eq64(vtime, now->vnow)) {
+ 		blkcg_clear_delay(blkg);
+ 		return false;
+ 	}
+@@ -1261,9 +1264,12 @@ static enum hrtimer_restart iocg_delay_timer_fn(struct hrtimer *timer)
+ {
+ 	struct ioc_gq *iocg = container_of(timer, struct ioc_gq, delay_timer);
+ 	struct ioc_now now;
++	unsigned long flags;
+ 
++	spin_lock_irqsave(&iocg->waitq.lock, flags);
+ 	ioc_now(iocg->ioc, &now);
+ 	iocg_kick_delay(iocg, &now, 0);
++	spin_unlock_irqrestore(&iocg->waitq.lock, flags);
+ 
+ 	return HRTIMER_NORESTART;
+ }
+@@ -1371,14 +1377,13 @@ static void ioc_timer_fn(struct timer_list *timer)
+ 	 * should have woken up in the last period and expire idle iocgs.
+ 	 */
+ 	list_for_each_entry_safe(iocg, tiocg, &ioc->active_iocgs, active_list) {
+-		if (!waitqueue_active(&iocg->waitq) &&
+-		    !atomic64_read(&iocg->abs_vdebt) && !iocg_is_idle(iocg))
++		if (!waitqueue_active(&iocg->waitq) && iocg->abs_vdebt &&
++		    !iocg_is_idle(iocg))
+ 			continue;
+ 
+ 		spin_lock(&iocg->waitq.lock);
+ 
+-		if (waitqueue_active(&iocg->waitq) ||
+-		    atomic64_read(&iocg->abs_vdebt)) {
++		if (waitqueue_active(&iocg->waitq) || iocg->abs_vdebt) {
+ 			/* might be oversleeping vtime / hweight changes, kick */
+ 			iocg_kick_waitq(iocg, &now);
+ 			iocg_kick_delay(iocg, &now, 0);
+@@ -1721,28 +1726,49 @@ static void ioc_rqos_throttle(struct rq_qos *rqos, struct bio *bio)
+ 	 * tests are racy but the races aren't systemic - we only miss once
+ 	 * in a while which is fine.
+ 	 */
+-	if (!waitqueue_active(&iocg->waitq) &&
+-	    !atomic64_read(&iocg->abs_vdebt) &&
++	if (!waitqueue_active(&iocg->waitq) && !iocg->abs_vdebt &&
+ 	    time_before_eq64(vtime + cost, now.vnow)) {
+ 		iocg_commit_bio(iocg, bio, cost);
+ 		return;
+ 	}
+ 
+ 	/*
+-	 * We're over budget.  If @bio has to be issued regardless,
+-	 * remember the abs_cost instead of advancing vtime.
+-	 * iocg_kick_waitq() will pay off the debt before waking more IOs.
++	 * We activated above but w/o any synchronization. Deactivation is
++	 * synchronized with waitq.lock and we won't get deactivated as long
++	 * as we're waiting or has debt, so we're good if we're activated
++	 * here. In the unlikely case that we aren't, just issue the IO.
++	 */
++	spin_lock_irq(&iocg->waitq.lock);
++
++	if (unlikely(list_empty(&iocg->active_list))) {
++		spin_unlock_irq(&iocg->waitq.lock);
++		iocg_commit_bio(iocg, bio, cost);
++		return;
++	}
++
++	/*
++	 * We're over budget. If @bio has to be issued regardless, remember
++	 * the abs_cost instead of advancing vtime. iocg_kick_waitq() will pay
++	 * off the debt before waking more IOs.
++	 *
+ 	 * This way, the debt is continuously paid off each period with the
+-	 * actual budget available to the cgroup.  If we just wound vtime,
+-	 * we would incorrectly use the current hw_inuse for the entire
+-	 * amount which, for example, can lead to the cgroup staying
+-	 * blocked for a long time even with substantially raised hw_inuse.
++	 * actual budget available to the cgroup. If we just wound vtime, we
++	 * would incorrectly use the current hw_inuse for the entire amount
++	 * which, for example, can lead to the cgroup staying blocked for a
++	 * long time even with substantially raised hw_inuse.
++	 *
++	 * An iocg with vdebt should stay online so that the timer can keep
++	 * deducting its vdebt and [de]activate use_delay mechanism
++	 * accordingly. We don't want to race against the timer trying to
++	 * clear them and leave @iocg inactive w/ dangling use_delay heavily
++	 * penalizing the cgroup and its descendants.
+ 	 */
+ 	if (bio_issue_as_root_blkg(bio) || fatal_signal_pending(current)) {
+-		atomic64_add(abs_cost, &iocg->abs_vdebt);
++		iocg->abs_vdebt += abs_cost;
+ 		if (iocg_kick_delay(iocg, &now, cost))
+ 			blkcg_schedule_throttle(rqos->q,
+ 					(bio->bi_opf & REQ_SWAP) == REQ_SWAP);
++		spin_unlock_irq(&iocg->waitq.lock);
+ 		return;
+ 	}
+ 
+@@ -1759,20 +1785,6 @@ static void ioc_rqos_throttle(struct rq_qos *rqos, struct bio *bio)
+ 	 * All waiters are on iocg->waitq and the wait states are
+ 	 * synchronized using waitq.lock.
+ 	 */
+-	spin_lock_irq(&iocg->waitq.lock);
+-
+-	/*
+-	 * We activated above but w/o any synchronization.  Deactivation is
+-	 * synchronized with waitq.lock and we won't get deactivated as
+-	 * long as we're waiting, so we're good if we're activated here.
+-	 * In the unlikely case that we are deactivated, just issue the IO.
+-	 */
+-	if (unlikely(list_empty(&iocg->active_list))) {
+-		spin_unlock_irq(&iocg->waitq.lock);
+-		iocg_commit_bio(iocg, bio, cost);
+-		return;
+-	}
+-
+ 	init_waitqueue_func_entry(&wait.wait, iocg_wake_fn);
+ 	wait.wait.private = current;
+ 	wait.bio = bio;
+@@ -1804,6 +1816,7 @@ static void ioc_rqos_merge(struct rq_qos *rqos, struct request *rq,
+ 	struct ioc_now now;
+ 	u32 hw_inuse;
+ 	u64 abs_cost, cost;
++	unsigned long flags;
+ 
+ 	/* bypass if disabled or for root cgroup */
+ 	if (!ioc->enabled || !iocg->level)
+@@ -1823,15 +1836,28 @@ static void ioc_rqos_merge(struct rq_qos *rqos, struct request *rq,
+ 		iocg->cursor = bio_end;
+ 
+ 	/*
+-	 * Charge if there's enough vtime budget and the existing request
+-	 * has cost assigned.  Otherwise, account it as debt.  See debt
+-	 * handling in ioc_rqos_throttle() for details.
++	 * Charge if there's enough vtime budget and the existing request has
++	 * cost assigned.
+ 	 */
+ 	if (rq->bio && rq->bio->bi_iocost_cost &&
+-	    time_before_eq64(atomic64_read(&iocg->vtime) + cost, now.vnow))
++	    time_before_eq64(atomic64_read(&iocg->vtime) + cost, now.vnow)) {
+ 		iocg_commit_bio(iocg, bio, cost);
+-	else
+-		atomic64_add(abs_cost, &iocg->abs_vdebt);
++		return;
++	}
++
++	/*
++	 * Otherwise, account it as debt if @iocg is online, which it should
++	 * be for the vast majority of cases. See debt handling in
++	 * ioc_rqos_throttle() for details.
++	 */
++	spin_lock_irqsave(&iocg->waitq.lock, flags);
++	if (likely(!list_empty(&iocg->active_list))) {
++		iocg->abs_vdebt += abs_cost;
++		iocg_kick_delay(iocg, &now, cost);
++	} else {
++		iocg_commit_bio(iocg, bio, cost);
++	}
++	spin_unlock_irqrestore(&iocg->waitq.lock, flags);
+ }
+ 
+ static void ioc_rqos_done_bio(struct rq_qos *rqos, struct bio *bio)
+@@ -2001,7 +2027,6 @@ static void ioc_pd_init(struct blkg_policy_data *pd)
+ 	iocg->ioc = ioc;
+ 	atomic64_set(&iocg->vtime, now.vnow);
+ 	atomic64_set(&iocg->done_vtime, now.vnow);
+-	atomic64_set(&iocg->abs_vdebt, 0);
+ 	atomic64_set(&iocg->active_period, atomic64_read(&ioc->cur_period));
+ 	INIT_LIST_HEAD(&iocg->active_list);
+ 	iocg->hweight_active = HWEIGHT_WHOLE;
+diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+index 630e8342d162..5e1dce424154 100644
+--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
++++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+@@ -3070,15 +3070,12 @@ int amdgpu_device_suspend(struct drm_device *dev, bool suspend, bool fbcon)
+ 		}
+ 	}
+ 
+-	amdgpu_device_set_pg_state(adev, AMD_PG_STATE_UNGATE);
+-	amdgpu_device_set_cg_state(adev, AMD_CG_STATE_UNGATE);
+-
+-	amdgpu_amdkfd_suspend(adev);
+-
+ 	amdgpu_ras_suspend(adev);
+ 
+ 	r = amdgpu_device_ip_suspend_phase1(adev);
+ 
++	amdgpu_amdkfd_suspend(adev);
++
+ 	/* evict vram memory */
+ 	amdgpu_bo_evict_vram(adev);
+ 
+diff --git a/drivers/gpu/drm/ingenic/ingenic-drm.c b/drivers/gpu/drm/ingenic/ingenic-drm.c
+index f156f245fdec..9e95f6fd5406 100644
+--- a/drivers/gpu/drm/ingenic/ingenic-drm.c
++++ b/drivers/gpu/drm/ingenic/ingenic-drm.c
+@@ -824,6 +824,7 @@ static const struct of_device_id ingenic_drm_of_match[] = {
+ 	{ .compatible = "ingenic,jz4725b-lcd", .data = &jz4725b_soc_info },
+ 	{ /* sentinel */ },
+ };
++MODULE_DEVICE_TABLE(of, ingenic_drm_of_match);
+ 
+ static struct platform_driver ingenic_drm_driver = {
+ 	.driver = {
+diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c
+index c7bc9db5b192..17a638f15082 100644
+--- a/drivers/hid/usbhid/hid-core.c
++++ b/drivers/hid/usbhid/hid-core.c
+@@ -682,16 +682,21 @@ static int usbhid_open(struct hid_device *hid)
+ 	struct usbhid_device *usbhid = hid->driver_data;
+ 	int res;
+ 
++	mutex_lock(&usbhid->mutex);
++
+ 	set_bit(HID_OPENED, &usbhid->iofl);
+ 
+-	if (hid->quirks & HID_QUIRK_ALWAYS_POLL)
+-		return 0;
++	if (hid->quirks & HID_QUIRK_ALWAYS_POLL) {
++		res = 0;
++		goto Done;
++	}
+ 
+ 	res = usb_autopm_get_interface(usbhid->intf);
+ 	/* the device must be awake to reliably request remote wakeup */
+ 	if (res < 0) {
+ 		clear_bit(HID_OPENED, &usbhid->iofl);
+-		return -EIO;
++		res = -EIO;
++		goto Done;
+ 	}
+ 
+ 	usbhid->intf->needs_remote_wakeup = 1;
+@@ -725,6 +730,9 @@ static int usbhid_open(struct hid_device *hid)
+ 		msleep(50);
+ 
+ 	clear_bit(HID_RESUME_RUNNING, &usbhid->iofl);
++
++ Done:
++	mutex_unlock(&usbhid->mutex);
+ 	return res;
+ }
+ 
+@@ -732,6 +740,8 @@ static void usbhid_close(struct hid_device *hid)
+ {
+ 	struct usbhid_device *usbhid = hid->driver_data;
+ 
++	mutex_lock(&usbhid->mutex);
++
+ 	/*
+ 	 * Make sure we don't restart data acquisition due to
+ 	 * a resumption we no longer care about by avoiding racing
+@@ -743,12 +753,13 @@ static void usbhid_close(struct hid_device *hid)
+ 		clear_bit(HID_IN_POLLING, &usbhid->iofl);
+ 	spin_unlock_irq(&usbhid->lock);
+ 
+-	if (hid->quirks & HID_QUIRK_ALWAYS_POLL)
+-		return;
++	if (!(hid->quirks & HID_QUIRK_ALWAYS_POLL)) {
++		hid_cancel_delayed_stuff(usbhid);
++		usb_kill_urb(usbhid->urbin);
++		usbhid->intf->needs_remote_wakeup = 0;
++	}
+ 
+-	hid_cancel_delayed_stuff(usbhid);
+-	usb_kill_urb(usbhid->urbin);
+-	usbhid->intf->needs_remote_wakeup = 0;
++	mutex_unlock(&usbhid->mutex);
+ }
+ 
+ /*
+@@ -1057,6 +1068,8 @@ static int usbhid_start(struct hid_device *hid)
+ 	unsigned int n, insize = 0;
+ 	int ret;
+ 
++	mutex_lock(&usbhid->mutex);
++
+ 	clear_bit(HID_DISCONNECTED, &usbhid->iofl);
+ 
+ 	usbhid->bufsize = HID_MIN_BUFFER_SIZE;
+@@ -1177,6 +1190,8 @@ static int usbhid_start(struct hid_device *hid)
+ 		usbhid_set_leds(hid);
+ 		device_set_wakeup_enable(&dev->dev, 1);
+ 	}
++
++	mutex_unlock(&usbhid->mutex);
+ 	return 0;
+ 
+ fail:
+@@ -1187,6 +1202,7 @@ fail:
+ 	usbhid->urbout = NULL;
+ 	usbhid->urbctrl = NULL;
+ 	hid_free_buffers(dev, hid);
++	mutex_unlock(&usbhid->mutex);
+ 	return ret;
+ }
+ 
+@@ -1202,6 +1218,8 @@ static void usbhid_stop(struct hid_device *hid)
+ 		usbhid->intf->needs_remote_wakeup = 0;
+ 	}
+ 
++	mutex_lock(&usbhid->mutex);
++
+ 	clear_bit(HID_STARTED, &usbhid->iofl);
+ 	spin_lock_irq(&usbhid->lock);	/* Sync with error and led handlers */
+ 	set_bit(HID_DISCONNECTED, &usbhid->iofl);
+@@ -1222,6 +1240,8 @@ static void usbhid_stop(struct hid_device *hid)
+ 	usbhid->urbout = NULL;
+ 
+ 	hid_free_buffers(hid_to_usb_dev(hid), hid);
++
++	mutex_unlock(&usbhid->mutex);
+ }
+ 
+ static int usbhid_power(struct hid_device *hid, int lvl)
+@@ -1382,6 +1402,7 @@ static int usbhid_probe(struct usb_interface *intf, const struct usb_device_id *
+ 	INIT_WORK(&usbhid->reset_work, hid_reset);
+ 	timer_setup(&usbhid->io_retry, hid_retry_timeout, 0);
+ 	spin_lock_init(&usbhid->lock);
++	mutex_init(&usbhid->mutex);
+ 
+ 	ret = hid_add_device(hid);
+ 	if (ret) {
+diff --git a/drivers/hid/usbhid/usbhid.h b/drivers/hid/usbhid/usbhid.h
+index 8620408bd7af..75fe85d3d27a 100644
+--- a/drivers/hid/usbhid/usbhid.h
++++ b/drivers/hid/usbhid/usbhid.h
+@@ -80,6 +80,7 @@ struct usbhid_device {
+ 	dma_addr_t outbuf_dma;                                          /* Output buffer dma */
+ 	unsigned long last_out;							/* record of last output for timeouts */
+ 
++	struct mutex mutex;						/* start/stop/open/close */
+ 	spinlock_t lock;						/* fifo spinlock */
+ 	unsigned long iofl;                                             /* I/O flags (CTRL_RUNNING, OUT_RUNNING) */
+ 	struct timer_list io_retry;                                     /* Retry timer */
+diff --git a/drivers/hid/wacom_sys.c b/drivers/hid/wacom_sys.c
+index 5ded94b7bf68..cd71e7133944 100644
+--- a/drivers/hid/wacom_sys.c
++++ b/drivers/hid/wacom_sys.c
+@@ -319,9 +319,11 @@ static void wacom_feature_mapping(struct hid_device *hdev,
+ 			data[0] = field->report->id;
+ 			ret = wacom_get_report(hdev, HID_FEATURE_REPORT,
+ 					       data, n, WAC_CMD_RETRIES);
+-			if (ret == n) {
++			if (ret == n && features->type == HID_GENERIC) {
+ 				ret = hid_report_raw_event(hdev,
+ 					HID_FEATURE_REPORT, data, n, 0);
++			} else if (ret == 2 && features->type != HID_GENERIC) {
++				features->touch_max = data[1];
+ 			} else {
+ 				features->touch_max = 16;
+ 				hid_warn(hdev, "wacom_feature_mapping: "
+diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c
+index d99a9d407671..1c96809b51c9 100644
+--- a/drivers/hid/wacom_wac.c
++++ b/drivers/hid/wacom_wac.c
+@@ -1427,11 +1427,13 @@ static void wacom_intuos_pro2_bt_pad(struct wacom_wac *wacom)
+ {
+ 	struct input_dev *pad_input = wacom->pad_input;
+ 	unsigned char *data = wacom->data;
++	int nbuttons = wacom->features.numbered_buttons;
+ 
+-	int buttons = data[282] | ((data[281] & 0x40) << 2);
++	int expresskeys = data[282];
++	int center = (data[281] & 0x40) >> 6;
+ 	int ring = data[285] & 0x7F;
+ 	bool ringstatus = data[285] & 0x80;
+-	bool prox = buttons || ringstatus;
++	bool prox = expresskeys || center || ringstatus;
+ 
+ 	/* Fix touchring data: userspace expects 0 at left and increasing clockwise */
+ 	ring = 71 - ring;
+@@ -1439,7 +1441,8 @@ static void wacom_intuos_pro2_bt_pad(struct wacom_wac *wacom)
+ 	if (ring > 71)
+ 		ring -= 72;
+ 
+-	wacom_report_numbered_buttons(pad_input, 9, buttons);
++	wacom_report_numbered_buttons(pad_input, nbuttons,
++                                      expresskeys | (center << (nbuttons - 1)));
+ 
+ 	input_report_abs(pad_input, ABS_WHEEL, ringstatus ? ring : 0);
+ 
+@@ -2637,9 +2640,25 @@ static void wacom_wac_finger_pre_report(struct hid_device *hdev,
+ 			case HID_DG_TIPSWITCH:
+ 				hid_data->last_slot_field = equivalent_usage;
+ 				break;
++			case HID_DG_CONTACTCOUNT:
++				hid_data->cc_report = report->id;
++				hid_data->cc_index = i;
++				hid_data->cc_value_index = j;
++				break;
+ 			}
+ 		}
+ 	}
++
++	if (hid_data->cc_report != 0 &&
++	    hid_data->cc_index >= 0) {
++		struct hid_field *field = report->field[hid_data->cc_index];
++		int value = field->value[hid_data->cc_value_index];
++		if (value)
++			hid_data->num_expected = value;
++	}
++	else {
++		hid_data->num_expected = wacom_wac->features.touch_max;
++	}
+ }
+ 
+ static void wacom_wac_finger_report(struct hid_device *hdev,
+@@ -2649,7 +2668,6 @@ static void wacom_wac_finger_report(struct hid_device *hdev,
+ 	struct wacom_wac *wacom_wac = &wacom->wacom_wac;
+ 	struct input_dev *input = wacom_wac->touch_input;
+ 	unsigned touch_max = wacom_wac->features.touch_max;
+-	struct hid_data *hid_data = &wacom_wac->hid_data;
+ 
+ 	/* If more packets of data are expected, give us a chance to
+ 	 * process them rather than immediately syncing a partial
+@@ -2663,7 +2681,6 @@ static void wacom_wac_finger_report(struct hid_device *hdev,
+ 
+ 	input_sync(input);
+ 	wacom_wac->hid_data.num_received = 0;
+-	hid_data->num_expected = 0;
+ 
+ 	/* keep touch state for pen event */
+ 	wacom_wac->shared->touch_down = wacom_wac_finger_count_touches(wacom_wac);
+@@ -2738,73 +2755,12 @@ static void wacom_report_events(struct hid_device *hdev,
+ 	}
+ }
+ 
+-static void wacom_set_num_expected(struct hid_device *hdev,
+-				   struct hid_report *report,
+-				   int collection_index,
+-				   struct hid_field *field,
+-				   int field_index)
+-{
+-	struct wacom *wacom = hid_get_drvdata(hdev);
+-	struct wacom_wac *wacom_wac = &wacom->wacom_wac;
+-	struct hid_data *hid_data = &wacom_wac->hid_data;
+-	unsigned int original_collection_level =
+-		hdev->collection[collection_index].level;
+-	bool end_collection = false;
+-	int i;
+-
+-	if (hid_data->num_expected)
+-		return;
+-
+-	// find the contact count value for this segment
+-	for (i = field_index; i < report->maxfield && !end_collection; i++) {
+-		struct hid_field *field = report->field[i];
+-		unsigned int field_level =
+-			hdev->collection[field->usage[0].collection_index].level;
+-		unsigned int j;
+-
+-		if (field_level != original_collection_level)
+-			continue;
+-
+-		for (j = 0; j < field->maxusage; j++) {
+-			struct hid_usage *usage = &field->usage[j];
+-
+-			if (usage->collection_index != collection_index) {
+-				end_collection = true;
+-				break;
+-			}
+-			if (wacom_equivalent_usage(usage->hid) == HID_DG_CONTACTCOUNT) {
+-				hid_data->cc_report = report->id;
+-				hid_data->cc_index = i;
+-				hid_data->cc_value_index = j;
+-
+-				if (hid_data->cc_report != 0 &&
+-				    hid_data->cc_index >= 0) {
+-
+-					struct hid_field *field =
+-						report->field[hid_data->cc_index];
+-					int value =
+-						field->value[hid_data->cc_value_index];
+-
+-					if (value)
+-						hid_data->num_expected = value;
+-				}
+-			}
+-		}
+-	}
+-
+-	if (hid_data->cc_report == 0 || hid_data->cc_index < 0)
+-		hid_data->num_expected = wacom_wac->features.touch_max;
+-}
+-
+ static int wacom_wac_collection(struct hid_device *hdev, struct hid_report *report,
+ 			 int collection_index, struct hid_field *field,
+ 			 int field_index)
+ {
+ 	struct wacom *wacom = hid_get_drvdata(hdev);
+ 
+-	if (WACOM_FINGER_FIELD(field))
+-		wacom_set_num_expected(hdev, report, collection_index, field,
+-				       field_index);
+ 	wacom_report_events(hdev, report, collection_index, field_index);
+ 
+ 	/*
+diff --git a/drivers/iommu/virtio-iommu.c b/drivers/iommu/virtio-iommu.c
+index 6c340a4f4fd2..60e659a24f90 100644
+--- a/drivers/iommu/virtio-iommu.c
++++ b/drivers/iommu/virtio-iommu.c
+@@ -454,7 +454,7 @@ static int viommu_add_resv_mem(struct viommu_endpoint *vdev,
+ 	if (!region)
+ 		return -ENOMEM;
+ 
+-	list_add(&vdev->resv_regions, &region->list);
++	list_add(&region->list, &vdev->resv_regions);
+ 	return 0;
+ }
+ 
+diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+index 6862594b49ab..edf8452a2574 100644
+--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
++++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+@@ -6649,7 +6649,7 @@ static int bnxt_alloc_ctx_pg_tbls(struct bnxt *bp,
+ 	int rc;
+ 
+ 	if (!mem_size)
+-		return 0;
++		return -EINVAL;
+ 
+ 	ctx_pg->nr_pages = DIV_ROUND_UP(mem_size, BNXT_PAGE_SIZE);
+ 	if (ctx_pg->nr_pages > MAX_CTX_TOTAL_PAGES) {
+@@ -9755,6 +9755,7 @@ static netdev_features_t bnxt_fix_features(struct net_device *dev,
+ 					   netdev_features_t features)
+ {
+ 	struct bnxt *bp = netdev_priv(dev);
++	netdev_features_t vlan_features;
+ 
+ 	if ((features & NETIF_F_NTUPLE) && !bnxt_rfs_capable(bp))
+ 		features &= ~NETIF_F_NTUPLE;
+@@ -9771,12 +9772,14 @@ static netdev_features_t bnxt_fix_features(struct net_device *dev,
+ 	/* Both CTAG and STAG VLAN accelaration on the RX side have to be
+ 	 * turned on or off together.
+ 	 */
+-	if ((features & (NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_STAG_RX)) !=
+-	    (NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_STAG_RX)) {
++	vlan_features = features & (NETIF_F_HW_VLAN_CTAG_RX |
++				    NETIF_F_HW_VLAN_STAG_RX);
++	if (vlan_features != (NETIF_F_HW_VLAN_CTAG_RX |
++			      NETIF_F_HW_VLAN_STAG_RX)) {
+ 		if (dev->features & NETIF_F_HW_VLAN_CTAG_RX)
+ 			features &= ~(NETIF_F_HW_VLAN_CTAG_RX |
+ 				      NETIF_F_HW_VLAN_STAG_RX);
+-		else
++		else if (vlan_features)
+ 			features |= NETIF_F_HW_VLAN_CTAG_RX |
+ 				    NETIF_F_HW_VLAN_STAG_RX;
+ 	}
+@@ -12066,12 +12069,15 @@ static pci_ers_result_t bnxt_io_slot_reset(struct pci_dev *pdev)
+ 		}
+ 	}
+ 
+-	if (result != PCI_ERS_RESULT_RECOVERED && netif_running(netdev))
+-		dev_close(netdev);
++	if (result != PCI_ERS_RESULT_RECOVERED) {
++		if (netif_running(netdev))
++			dev_close(netdev);
++		pci_disable_device(pdev);
++	}
+ 
+ 	rtnl_unlock();
+ 
+-	return PCI_ERS_RESULT_RECOVERED;
++	return result;
+ }
+ 
+ /**
+diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
+index cda7ba31095a..a61a5873ab0a 100644
+--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h
++++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
+@@ -1058,7 +1058,6 @@ struct bnxt_vf_info {
+ #define BNXT_VF_LINK_FORCED	0x4
+ #define BNXT_VF_LINK_UP		0x8
+ #define BNXT_VF_TRUST		0x10
+-	u32	func_flags; /* func cfg flags */
+ 	u32	min_tx_rate;
+ 	u32	max_tx_rate;
+ 	void	*hwrm_cmd_req_addr;
+diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.h b/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.h
+index 689c47ab2155..ba94edec9fb8 100644
+--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.h
++++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.h
+@@ -39,7 +39,7 @@ static inline void bnxt_link_bp_to_dl(struct bnxt *bp, struct devlink *dl)
+ #define NVM_OFF_DIS_GRE_VER_CHECK	171
+ #define NVM_OFF_ENABLE_SRIOV		401
+ 
+-#define BNXT_MSIX_VEC_MAX	1280
++#define BNXT_MSIX_VEC_MAX	512
+ #define BNXT_MSIX_VEC_MIN_MAX	128
+ 
+ enum bnxt_nvm_dir_type {
+diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c
+index f6f3454d6059..1046b22220a3 100644
+--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c
++++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c
+@@ -85,11 +85,10 @@ int bnxt_set_vf_spoofchk(struct net_device *dev, int vf_id, bool setting)
+ 	if (old_setting == setting)
+ 		return 0;
+ 
+-	func_flags = vf->func_flags;
+ 	if (setting)
+-		func_flags |= FUNC_CFG_REQ_FLAGS_SRC_MAC_ADDR_CHECK_ENABLE;
++		func_flags = FUNC_CFG_REQ_FLAGS_SRC_MAC_ADDR_CHECK_ENABLE;
+ 	else
+-		func_flags |= FUNC_CFG_REQ_FLAGS_SRC_MAC_ADDR_CHECK_DISABLE;
++		func_flags = FUNC_CFG_REQ_FLAGS_SRC_MAC_ADDR_CHECK_DISABLE;
+ 	/*TODO: if the driver supports VLAN filter on guest VLAN,
+ 	 * the spoof check should also include vlan anti-spoofing
+ 	 */
+@@ -98,7 +97,6 @@ int bnxt_set_vf_spoofchk(struct net_device *dev, int vf_id, bool setting)
+ 	req.flags = cpu_to_le32(func_flags);
+ 	rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
+ 	if (!rc) {
+-		vf->func_flags = func_flags;
+ 		if (setting)
+ 			vf->flags |= BNXT_VF_SPOOFCHK;
+ 		else
+@@ -230,7 +228,6 @@ int bnxt_set_vf_mac(struct net_device *dev, int vf_id, u8 *mac)
+ 	memcpy(vf->mac_addr, mac, ETH_ALEN);
+ 	bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_CFG, -1, -1);
+ 	req.fid = cpu_to_le16(vf->fw_fid);
+-	req.flags = cpu_to_le32(vf->func_flags);
+ 	req.enables = cpu_to_le32(FUNC_CFG_REQ_ENABLES_DFLT_MAC_ADDR);
+ 	memcpy(req.dflt_mac_addr, mac, ETH_ALEN);
+ 	return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
+@@ -268,7 +265,6 @@ int bnxt_set_vf_vlan(struct net_device *dev, int vf_id, u16 vlan_id, u8 qos,
+ 
+ 	bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_CFG, -1, -1);
+ 	req.fid = cpu_to_le16(vf->fw_fid);
+-	req.flags = cpu_to_le32(vf->func_flags);
+ 	req.dflt_vlan = cpu_to_le16(vlan_tag);
+ 	req.enables = cpu_to_le32(FUNC_CFG_REQ_ENABLES_DFLT_VLAN);
+ 	rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
+@@ -307,7 +303,6 @@ int bnxt_set_vf_bw(struct net_device *dev, int vf_id, int min_tx_rate,
+ 		return 0;
+ 	bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_CFG, -1, -1);
+ 	req.fid = cpu_to_le16(vf->fw_fid);
+-	req.flags = cpu_to_le32(vf->func_flags);
+ 	req.enables = cpu_to_le32(FUNC_CFG_REQ_ENABLES_MAX_BW);
+ 	req.max_bw = cpu_to_le32(max_tx_rate);
+ 	req.enables |= cpu_to_le32(FUNC_CFG_REQ_ENABLES_MIN_BW);
+@@ -479,7 +474,6 @@ static void __bnxt_set_vf_params(struct bnxt *bp, int vf_id)
+ 	vf = &bp->pf.vf[vf_id];
+ 	bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_CFG, -1, -1);
+ 	req.fid = cpu_to_le16(vf->fw_fid);
+-	req.flags = cpu_to_le32(vf->func_flags);
+ 
+ 	if (is_valid_ether_addr(vf->mac_addr)) {
+ 		req.enables |= cpu_to_le32(FUNC_CFG_REQ_ENABLES_DFLT_MAC_ADDR);
+diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c
+index 234c13ebbc41..1ec19d9fab00 100644
+--- a/drivers/net/ethernet/cadence/macb_main.c
++++ b/drivers/net/ethernet/cadence/macb_main.c
+@@ -334,8 +334,10 @@ static int macb_mdio_read(struct mii_bus *bus, int mii_id, int regnum)
+ 	int status;
+ 
+ 	status = pm_runtime_get_sync(&bp->pdev->dev);
+-	if (status < 0)
++	if (status < 0) {
++		pm_runtime_put_noidle(&bp->pdev->dev);
+ 		goto mdio_pm_exit;
++	}
+ 
+ 	status = macb_mdio_wait_for_idle(bp);
+ 	if (status < 0)
+@@ -367,8 +369,10 @@ static int macb_mdio_write(struct mii_bus *bus, int mii_id, int regnum,
+ 	int status;
+ 
+ 	status = pm_runtime_get_sync(&bp->pdev->dev);
+-	if (status < 0)
++	if (status < 0) {
++		pm_runtime_put_noidle(&bp->pdev->dev);
+ 		goto mdio_pm_exit;
++	}
+ 
+ 	status = macb_mdio_wait_for_idle(bp);
+ 	if (status < 0)
+@@ -3691,8 +3695,10 @@ static int at91ether_open(struct net_device *dev)
+ 	int ret;
+ 
+ 	ret = pm_runtime_get_sync(&lp->pdev->dev);
+-	if (ret < 0)
++	if (ret < 0) {
++		pm_runtime_put_noidle(&lp->pdev->dev);
+ 		return ret;
++	}
+ 
+ 	/* Clear internal statistics */
+ 	ctl = macb_readl(lp, NCR);
+@@ -4048,15 +4054,9 @@ static int fu540_c000_clk_init(struct platform_device *pdev, struct clk **pclk,
+ 
+ static int fu540_c000_init(struct platform_device *pdev)
+ {
+-	struct resource *res;
+-
+-	res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+-	if (!res)
+-		return -ENODEV;
+-
+-	mgmt->reg = ioremap(res->start, resource_size(res));
+-	if (!mgmt->reg)
+-		return -ENOMEM;
++	mgmt->reg = devm_platform_ioremap_resource(pdev, 1);
++	if (IS_ERR(mgmt->reg))
++		return PTR_ERR(mgmt->reg);
+ 
+ 	return macb_init(pdev);
+ }
+diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_cls.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_cls.c
+index 35478cba2aa5..4344a59c823f 100644
+--- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_cls.c
++++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_cls.c
+@@ -1422,6 +1422,9 @@ int mvpp2_ethtool_cls_rule_del(struct mvpp2_port *port,
+ 	struct mvpp2_ethtool_fs *efs;
+ 	int ret;
+ 
++	if (info->fs.location >= MVPP2_N_RFS_ENTRIES_PER_FLOW)
++		return -EINVAL;
++
+ 	efs = port->rfs_rules[info->fs.location];
+ 	if (!efs)
+ 		return -EINVAL;
+diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
+index ef44c6979a31..373b8c832850 100644
+--- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
++++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
+@@ -4319,6 +4319,8 @@ static int mvpp2_ethtool_get_rxfh_context(struct net_device *dev, u32 *indir,
+ 
+ 	if (!mvpp22_rss_is_supported())
+ 		return -EOPNOTSUPP;
++	if (rss_context >= MVPP22_N_RSS_TABLES)
++		return -EINVAL;
+ 
+ 	if (hfunc)
+ 		*hfunc = ETH_RSS_HASH_CRC32;
+diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c
+index d44ac666e730..87c2e8de6102 100644
+--- a/drivers/net/ethernet/mellanox/mlx4/main.c
++++ b/drivers/net/ethernet/mellanox/mlx4/main.c
+@@ -2550,6 +2550,7 @@ static int mlx4_allocate_default_counters(struct mlx4_dev *dev)
+ 
+ 		if (!err || err == -ENOSPC) {
+ 			priv->def_counter[port] = idx;
++			err = 0;
+ 		} else if (err == -ENOENT) {
+ 			err = 0;
+ 			continue;
+@@ -2600,7 +2601,8 @@ int mlx4_counter_alloc(struct mlx4_dev *dev, u32 *idx, u8 usage)
+ 				   MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED);
+ 		if (!err)
+ 			*idx = get_param_l(&out_param);
+-
++		if (WARN_ON(err == -ENOSPC))
++			err = -EINVAL;
+ 		return err;
+ 	}
+ 	return __mlx4_counter_alloc(dev, idx);
+diff --git a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
+index ea934cd02448..08048a2d7259 100644
+--- a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
++++ b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
+@@ -888,7 +888,6 @@ static void cmd_work_handler(struct work_struct *work)
+ 	}
+ 
+ 	cmd->ent_arr[ent->idx] = ent;
+-	set_bit(MLX5_CMD_ENT_STATE_PENDING_COMP, &ent->state);
+ 	lay = get_inst(cmd, ent->idx);
+ 	ent->lay = lay;
+ 	memset(lay, 0, sizeof(*lay));
+@@ -910,6 +909,7 @@ static void cmd_work_handler(struct work_struct *work)
+ 
+ 	if (ent->callback)
+ 		schedule_delayed_work(&ent->cb_timeout_work, cb_timeout);
++	set_bit(MLX5_CMD_ENT_STATE_PENDING_COMP, &ent->state);
+ 
+ 	/* Skip sending command to fw if internal error */
+ 	if (pci_channel_offline(dev->pdev) ||
+@@ -922,6 +922,10 @@ static void cmd_work_handler(struct work_struct *work)
+ 		MLX5_SET(mbox_out, ent->out, syndrome, drv_synd);
+ 
+ 		mlx5_cmd_comp_handler(dev, 1UL << ent->idx, true);
++		/* no doorbell, no need to keep the entry */
++		free_ent(cmd, ent->idx);
++		if (ent->callback)
++			free_cmd(ent);
+ 		return;
+ 	}
+ 
+diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_send.c b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_send.c
+index 095ec7b1399d..7c77378accf0 100644
+--- a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_send.c
++++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_send.c
+@@ -689,6 +689,12 @@ static void dr_cq_event(struct mlx5_core_cq *mcq,
+ 	pr_info("CQ event %u on CQ #%u\n", event, mcq->cqn);
+ }
+ 
++static void dr_cq_complete(struct mlx5_core_cq *mcq,
++			   struct mlx5_eqe *eqe)
++{
++	pr_err("CQ completion CQ: #%u\n", mcq->cqn);
++}
++
+ static struct mlx5dr_cq *dr_create_cq(struct mlx5_core_dev *mdev,
+ 				      struct mlx5_uars_page *uar,
+ 				      size_t ncqe)
+@@ -750,6 +756,7 @@ static struct mlx5dr_cq *dr_create_cq(struct mlx5_core_dev *mdev,
+ 	mlx5_fill_page_frag_array(&cq->wq_ctrl.buf, pas);
+ 
+ 	cq->mcq.event = dr_cq_event;
++	cq->mcq.comp  = dr_cq_complete;
+ 
+ 	err = mlx5_core_create_cq(mdev, &cq->mcq, in, inlen, out, sizeof(out));
+ 	kvfree(in);
+@@ -761,7 +768,12 @@ static struct mlx5dr_cq *dr_create_cq(struct mlx5_core_dev *mdev,
+ 	cq->mcq.set_ci_db = cq->wq_ctrl.db.db;
+ 	cq->mcq.arm_db = cq->wq_ctrl.db.db + 1;
+ 	*cq->mcq.set_ci_db = 0;
+-	*cq->mcq.arm_db = 0;
++
++	/* set no-zero value, in order to avoid the HW to run db-recovery on
++	 * CQ that used in polling mode.
++	 */
++	*cq->mcq.arm_db = cpu_to_be32(2 << 28);
++
+ 	cq->mcq.vector = 0;
+ 	cq->mcq.irqn = irqn;
+ 	cq->mcq.uar = uar;
+diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_tcam.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_tcam.c
+index e993159e8e4c..295b27112d36 100644
+--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_tcam.c
++++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_tcam.c
+@@ -986,8 +986,9 @@ mlxsw_sp_acl_tcam_vchunk_create(struct mlxsw_sp *mlxsw_sp,
+ 				unsigned int priority,
+ 				struct mlxsw_afk_element_usage *elusage)
+ {
++	struct mlxsw_sp_acl_tcam_vchunk *vchunk, *vchunk2;
+ 	struct mlxsw_sp_acl_tcam_vregion *vregion;
+-	struct mlxsw_sp_acl_tcam_vchunk *vchunk;
++	struct list_head *pos;
+ 	int err;
+ 
+ 	if (priority == MLXSW_SP_ACL_TCAM_CATCHALL_PRIO)
+@@ -1025,7 +1026,14 @@ mlxsw_sp_acl_tcam_vchunk_create(struct mlxsw_sp *mlxsw_sp,
+ 	}
+ 
+ 	mlxsw_sp_acl_tcam_rehash_ctx_vregion_changed(vregion);
+-	list_add_tail(&vchunk->list, &vregion->vchunk_list);
++
++	/* Position the vchunk inside the list according to priority */
++	list_for_each(pos, &vregion->vchunk_list) {
++		vchunk2 = list_entry(pos, typeof(*vchunk2), list);
++		if (vchunk2->priority > priority)
++			break;
++	}
++	list_add_tail(&vchunk->list, pos);
+ 	mutex_unlock(&vregion->lock);
+ 
+ 	return vchunk;
+diff --git a/drivers/net/ethernet/netronome/nfp/abm/main.c b/drivers/net/ethernet/netronome/nfp/abm/main.c
+index 9183b3e85d21..354efffac0f9 100644
+--- a/drivers/net/ethernet/netronome/nfp/abm/main.c
++++ b/drivers/net/ethernet/netronome/nfp/abm/main.c
+@@ -283,6 +283,7 @@ nfp_abm_vnic_set_mac(struct nfp_pf *pf, struct nfp_abm *abm, struct nfp_net *nn,
+ 	if (!nfp_nsp_has_hwinfo_lookup(nsp)) {
+ 		nfp_warn(pf->cpp, "NSP doesn't support PF MAC generation\n");
+ 		eth_hw_addr_random(nn->dp.netdev);
++		nfp_nsp_close(nsp);
+ 		return;
+ 	}
+ 
+diff --git a/drivers/net/ethernet/toshiba/tc35815.c b/drivers/net/ethernet/toshiba/tc35815.c
+index 12466a72cefc..aab0cf57c654 100644
+--- a/drivers/net/ethernet/toshiba/tc35815.c
++++ b/drivers/net/ethernet/toshiba/tc35815.c
+@@ -644,7 +644,7 @@ static int tc_mii_probe(struct net_device *dev)
+ 		linkmode_set_bit(ETHTOOL_LINK_MODE_10baseT_Half_BIT, mask);
+ 		linkmode_set_bit(ETHTOOL_LINK_MODE_100baseT_Half_BIT, mask);
+ 	}
+-	linkmode_and(phydev->supported, phydev->supported, mask);
++	linkmode_andnot(phydev->supported, phydev->supported, mask);
+ 	linkmode_copy(phydev->advertising, phydev->supported);
+ 
+ 	lp->link = 0;
+diff --git a/drivers/net/macsec.c b/drivers/net/macsec.c
+index a0abc729f0ca..4c86a73db475 100644
+--- a/drivers/net/macsec.c
++++ b/drivers/net/macsec.c
+@@ -1309,7 +1309,8 @@ static struct crypto_aead *macsec_alloc_tfm(char *key, int key_len, int icv_len)
+ 	struct crypto_aead *tfm;
+ 	int ret;
+ 
+-	tfm = crypto_alloc_aead("gcm(aes)", 0, 0);
++	/* Pick a sync gcm(aes) cipher to ensure order is preserved. */
++	tfm = crypto_alloc_aead("gcm(aes)", 0, CRYPTO_ALG_ASYNC);
+ 
+ 	if (IS_ERR(tfm))
+ 		return tfm;
+diff --git a/drivers/net/phy/dp83640.c b/drivers/net/phy/dp83640.c
+index 8f241b57fcf6..1c75b2627ca8 100644
+--- a/drivers/net/phy/dp83640.c
++++ b/drivers/net/phy/dp83640.c
+@@ -1119,7 +1119,7 @@ static struct dp83640_clock *dp83640_clock_get_bus(struct mii_bus *bus)
+ 		goto out;
+ 	}
+ 	dp83640_clock_init(clock, bus);
+-	list_add_tail(&phyter_clocks, &clock->list);
++	list_add_tail(&clock->list, &phyter_clocks);
+ out:
+ 	mutex_unlock(&phyter_clocks_lock);
+ 
+diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c
+index 6c738a271257..4bb8552a00d3 100644
+--- a/drivers/net/usb/qmi_wwan.c
++++ b/drivers/net/usb/qmi_wwan.c
+@@ -1359,6 +1359,7 @@ static const struct usb_device_id products[] = {
+ 	{QMI_FIXED_INTF(0x413c, 0x81b3, 8)},	/* Dell Wireless 5809e Gobi(TM) 4G LTE Mobile Broadband Card (rev3) */
+ 	{QMI_FIXED_INTF(0x413c, 0x81b6, 8)},	/* Dell Wireless 5811e */
+ 	{QMI_FIXED_INTF(0x413c, 0x81b6, 10)},	/* Dell Wireless 5811e */
++	{QMI_FIXED_INTF(0x413c, 0x81cc, 8)},	/* Dell Wireless 5816e */
+ 	{QMI_FIXED_INTF(0x413c, 0x81d7, 0)},	/* Dell Wireless 5821e */
+ 	{QMI_FIXED_INTF(0x413c, 0x81d7, 1)},	/* Dell Wireless 5821e preproduction config */
+ 	{QMI_FIXED_INTF(0x413c, 0x81e0, 0)},	/* Dell Wireless 5821e with eSIM support*/
+diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
+index 31b7dcd791c2..f0e0af3aa714 100644
+--- a/drivers/nvme/host/core.c
++++ b/drivers/nvme/host/core.c
+@@ -1071,8 +1071,17 @@ static int nvme_identify_ns_descs(struct nvme_ctrl *ctrl, unsigned nsid,
+ 
+ 	status = nvme_submit_sync_cmd(ctrl->admin_q, &c, data,
+ 				      NVME_IDENTIFY_DATA_SIZE);
+-	if (status)
++	if (status) {
++		dev_warn(ctrl->device,
++			"Identify Descriptors failed (%d)\n", status);
++		 /*
++		  * Don't treat an error as fatal, as we potentially already
++		  * have a NGUID or EUI-64.
++		  */
++		if (status > 0 && !(status & NVME_SC_DNR))
++			status = 0;
+ 		goto free_data;
++	}
+ 
+ 	for (pos = 0; pos < NVME_IDENTIFY_DATA_SIZE; pos += len) {
+ 		struct nvme_ns_id_desc *cur = data + pos;
+@@ -1730,26 +1739,15 @@ static void nvme_config_write_zeroes(struct gendisk *disk, struct nvme_ns *ns)
+ static int nvme_report_ns_ids(struct nvme_ctrl *ctrl, unsigned int nsid,
+ 		struct nvme_id_ns *id, struct nvme_ns_ids *ids)
+ {
+-	int ret = 0;
+-
+ 	memset(ids, 0, sizeof(*ids));
+ 
+ 	if (ctrl->vs >= NVME_VS(1, 1, 0))
+ 		memcpy(ids->eui64, id->eui64, sizeof(id->eui64));
+ 	if (ctrl->vs >= NVME_VS(1, 2, 0))
+ 		memcpy(ids->nguid, id->nguid, sizeof(id->nguid));
+-	if (ctrl->vs >= NVME_VS(1, 3, 0)) {
+-		 /* Don't treat error as fatal we potentially
+-		  * already have a NGUID or EUI-64
+-		  */
+-		ret = nvme_identify_ns_descs(ctrl, nsid, ids);
+-		if (ret)
+-			dev_warn(ctrl->device,
+-				 "Identify Descriptors failed (%d)\n", ret);
+-		if (ret > 0)
+-			ret = 0;
+-	}
+-	return ret;
++	if (ctrl->vs >= NVME_VS(1, 3, 0))
++		return nvme_identify_ns_descs(ctrl, nsid, ids);
++	return 0;
+ }
+ 
+ static bool nvme_ns_ids_valid(struct nvme_ns_ids *ids)
+diff --git a/drivers/staging/gasket/gasket_core.c b/drivers/staging/gasket/gasket_core.c
+index 13179f063a61..6f9c0d18d9ce 100644
+--- a/drivers/staging/gasket/gasket_core.c
++++ b/drivers/staging/gasket/gasket_core.c
+@@ -926,6 +926,10 @@ do_map_region(const struct gasket_dev *gasket_dev, struct vm_area_struct *vma,
+ 		gasket_get_bar_index(gasket_dev,
+ 				     (vma->vm_pgoff << PAGE_SHIFT) +
+ 				     driver_desc->legacy_mmap_address_offset);
++
++	if (bar_index < 0)
++		return DO_MAP_REGION_INVALID;
++
+ 	phys_base = gasket_dev->bar_data[bar_index].phys_base + phys_offset;
+ 	while (mapped_bytes < map_length) {
+ 		/*
+diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c
+index fe098cf14e6a..3cb9aacfe0b2 100644
+--- a/drivers/tty/serial/xilinx_uartps.c
++++ b/drivers/tty/serial/xilinx_uartps.c
+@@ -1445,6 +1445,7 @@ static int cdns_uart_probe(struct platform_device *pdev)
+ 		cdns_uart_uart_driver.nr = CDNS_UART_NR_PORTS;
+ #ifdef CONFIG_SERIAL_XILINX_PS_UART_CONSOLE
+ 		cdns_uart_uart_driver.cons = &cdns_uart_console;
++		cdns_uart_console.index = id;
+ #endif
+ 
+ 		rc = uart_register_driver(&cdns_uart_uart_driver);
+diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
+index 8b3ecef50394..fd0361d72738 100644
+--- a/drivers/tty/vt/vt.c
++++ b/drivers/tty/vt/vt.c
+@@ -365,9 +365,14 @@ static struct uni_screen *vc_uniscr_alloc(unsigned int cols, unsigned int rows)
+ 	return uniscr;
+ }
+ 
++static void vc_uniscr_free(struct uni_screen *uniscr)
++{
++	vfree(uniscr);
++}
++
+ static void vc_uniscr_set(struct vc_data *vc, struct uni_screen *new_uniscr)
+ {
+-	vfree(vc->vc_uni_screen);
++	vc_uniscr_free(vc->vc_uni_screen);
+ 	vc->vc_uni_screen = new_uniscr;
+ }
+ 
+@@ -1230,7 +1235,7 @@ static int vc_do_resize(struct tty_struct *tty, struct vc_data *vc,
+ 	err = resize_screen(vc, new_cols, new_rows, user);
+ 	if (err) {
+ 		kfree(newscreen);
+-		kfree(new_uniscr);
++		vc_uniscr_free(new_uniscr);
+ 		return err;
+ 	}
+ 
+diff --git a/drivers/usb/chipidea/ci_hdrc_msm.c b/drivers/usb/chipidea/ci_hdrc_msm.c
+index af648ba6544d..46105457e1ca 100644
+--- a/drivers/usb/chipidea/ci_hdrc_msm.c
++++ b/drivers/usb/chipidea/ci_hdrc_msm.c
+@@ -114,7 +114,7 @@ static int ci_hdrc_msm_notify_event(struct ci_hdrc *ci, unsigned event)
+ 			hw_write_id_reg(ci, HS_PHY_GENCONFIG_2,
+ 					HS_PHY_ULPI_TX_PKT_EN_CLR_FIX, 0);
+ 
+-		if (!IS_ERR(ci->platdata->vbus_extcon.edev)) {
++		if (!IS_ERR(ci->platdata->vbus_extcon.edev) || ci->role_switch) {
+ 			hw_write_id_reg(ci, HS_PHY_GENCONFIG_2,
+ 					HS_PHY_SESS_VLD_CTRL_EN,
+ 					HS_PHY_SESS_VLD_CTRL_EN);
+diff --git a/drivers/usb/serial/garmin_gps.c b/drivers/usb/serial/garmin_gps.c
+index 633550ec3025..f29c3a936a08 100644
+--- a/drivers/usb/serial/garmin_gps.c
++++ b/drivers/usb/serial/garmin_gps.c
+@@ -1138,8 +1138,8 @@ static void garmin_read_process(struct garmin_data *garmin_data_p,
+ 		   send it directly to the tty port */
+ 		if (garmin_data_p->flags & FLAGS_QUEUING) {
+ 			pkt_add(garmin_data_p, data, data_length);
+-		} else if (bulk_data ||
+-			   getLayerId(data) == GARMIN_LAYERID_APPL) {
++		} else if (bulk_data || (data_length >= sizeof(u32) &&
++				getLayerId(data) == GARMIN_LAYERID_APPL)) {
+ 
+ 			spin_lock_irqsave(&garmin_data_p->lock, flags);
+ 			garmin_data_p->flags |= APP_RESP_SEEN;
+diff --git a/drivers/usb/serial/qcserial.c b/drivers/usb/serial/qcserial.c
+index 613f91add03d..ce0401d3137f 100644
+--- a/drivers/usb/serial/qcserial.c
++++ b/drivers/usb/serial/qcserial.c
+@@ -173,6 +173,7 @@ static const struct usb_device_id id_table[] = {
+ 	{DEVICE_SWI(0x413c, 0x81b3)},	/* Dell Wireless 5809e Gobi(TM) 4G LTE Mobile Broadband Card (rev3) */
+ 	{DEVICE_SWI(0x413c, 0x81b5)},	/* Dell Wireless 5811e QDL */
+ 	{DEVICE_SWI(0x413c, 0x81b6)},	/* Dell Wireless 5811e QDL */
++	{DEVICE_SWI(0x413c, 0x81cc)},	/* Dell Wireless 5816e */
+ 	{DEVICE_SWI(0x413c, 0x81cf)},   /* Dell Wireless 5819 */
+ 	{DEVICE_SWI(0x413c, 0x81d0)},   /* Dell Wireless 5819 */
+ 	{DEVICE_SWI(0x413c, 0x81d1)},   /* Dell Wireless 5818 */
+diff --git a/drivers/usb/storage/unusual_uas.h b/drivers/usb/storage/unusual_uas.h
+index 1b23741036ee..37157ed9a881 100644
+--- a/drivers/usb/storage/unusual_uas.h
++++ b/drivers/usb/storage/unusual_uas.h
+@@ -28,6 +28,13 @@
+  * and don't forget to CC: the USB development list <linux-usb@×××××××××××.org>
+  */
+ 
++/* Reported-by: Julian Groß <julian.g@××××××.de> */
++UNUSUAL_DEV(0x059f, 0x105f, 0x0000, 0x9999,
++		"LaCie",
++		"2Big Quadra USB3",
++		USB_SC_DEVICE, USB_PR_DEVICE, NULL,
++		US_FL_NO_REPORT_OPCODES),
++
+ /*
+  * Apricorn USB3 dongle sometimes returns "USBSUSBSUSBS" in response to SCSI
+  * commands in UAS mode.  Observed with the 1.28 firmware; are there others?
+diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
+index 8c1f04c3a684..b79fe6549df6 100644
+--- a/fs/ceph/mds_client.c
++++ b/fs/ceph/mds_client.c
+@@ -3072,8 +3072,7 @@ static void handle_session(struct ceph_mds_session *session,
+ 	void *end = p + msg->front.iov_len;
+ 	struct ceph_mds_session_head *h;
+ 	u32 op;
+-	u64 seq;
+-	unsigned long features = 0;
++	u64 seq, features = 0;
+ 	int wake = 0;
+ 	bool blacklisted = false;
+ 
+@@ -3092,9 +3091,8 @@ static void handle_session(struct ceph_mds_session *session,
+ 			goto bad;
+ 		/* version >= 3, feature bits */
+ 		ceph_decode_32_safe(&p, end, len, bad);
+-		ceph_decode_need(&p, end, len, bad);
+-		memcpy(&features, p, min_t(size_t, len, sizeof(features)));
+-		p += len;
++		ceph_decode_64_safe(&p, end, features, bad);
++		p += len - sizeof(features);
+ 	}
+ 
+ 	mutex_lock(&mdsc->mutex);
+diff --git a/fs/ceph/quota.c b/fs/ceph/quota.c
+index de56dee60540..19507e2fdb57 100644
+--- a/fs/ceph/quota.c
++++ b/fs/ceph/quota.c
+@@ -159,8 +159,8 @@ static struct inode *lookup_quotarealm_inode(struct ceph_mds_client *mdsc,
+ 	}
+ 
+ 	if (IS_ERR(in)) {
+-		pr_warn("Can't lookup inode %llx (err: %ld)\n",
+-			realm->ino, PTR_ERR(in));
++		dout("Can't lookup inode %llx (err: %ld)\n",
++		     realm->ino, PTR_ERR(in));
+ 		qri->timeout = jiffies + msecs_to_jiffies(60 * 1000); /* XXX */
+ 	} else {
+ 		qri->timeout = 0;
+diff --git a/fs/coredump.c b/fs/coredump.c
+index d25bad2ed061..5c0375e7440f 100644
+--- a/fs/coredump.c
++++ b/fs/coredump.c
+@@ -788,6 +788,14 @@ void do_coredump(const kernel_siginfo_t *siginfo)
+ 	if (displaced)
+ 		put_files_struct(displaced);
+ 	if (!dump_interrupted()) {
++		/*
++		 * umh disabled with CONFIG_STATIC_USERMODEHELPER_PATH="" would
++		 * have this set to NULL.
++		 */
++		if (!cprm.file) {
++			pr_info("Core dump to |%s disabled\n", cn.corename);
++			goto close_fail;
++		}
+ 		file_start_write(cprm.file);
+ 		core_dumped = binfmt->core_dump(&cprm);
+ 		file_end_write(cprm.file);
+diff --git a/fs/eventpoll.c b/fs/eventpoll.c
+index 33cff49769cc..6307c1d883e0 100644
+--- a/fs/eventpoll.c
++++ b/fs/eventpoll.c
+@@ -1176,6 +1176,10 @@ static inline bool chain_epi_lockless(struct epitem *epi)
+ {
+ 	struct eventpoll *ep = epi->ep;
+ 
++	/* Fast preliminary check */
++	if (epi->next != EP_UNACTIVE_PTR)
++		return false;
++
+ 	/* Check that the same epi has not been just chained from another CPU */
+ 	if (cmpxchg(&epi->next, EP_UNACTIVE_PTR, NULL) != EP_UNACTIVE_PTR)
+ 		return false;
+@@ -1242,16 +1246,12 @@ static int ep_poll_callback(wait_queue_entry_t *wait, unsigned mode, int sync, v
+ 	 * chained in ep->ovflist and requeued later on.
+ 	 */
+ 	if (READ_ONCE(ep->ovflist) != EP_UNACTIVE_PTR) {
+-		if (epi->next == EP_UNACTIVE_PTR &&
+-		    chain_epi_lockless(epi))
++		if (chain_epi_lockless(epi))
++			ep_pm_stay_awake_rcu(epi);
++	} else if (!ep_is_linked(epi)) {
++		/* In the usual case, add event to ready list. */
++		if (list_add_tail_lockless(&epi->rdllink, &ep->rdllist))
+ 			ep_pm_stay_awake_rcu(epi);
+-		goto out_unlock;
+-	}
+-
+-	/* If this file is already in the ready list we exit soon */
+-	if (!ep_is_linked(epi) &&
+-	    list_add_tail_lockless(&epi->rdllink, &ep->rdllist)) {
+-		ep_pm_stay_awake_rcu(epi);
+ 	}
+ 
+ 	/*
+@@ -1827,7 +1827,6 @@ static int ep_poll(struct eventpoll *ep, struct epoll_event __user *events,
+ {
+ 	int res = 0, eavail, timed_out = 0;
+ 	u64 slack = 0;
+-	bool waiter = false;
+ 	wait_queue_entry_t wait;
+ 	ktime_t expires, *to = NULL;
+ 
+@@ -1872,21 +1871,23 @@ fetch_events:
+ 	 */
+ 	ep_reset_busy_poll_napi_id(ep);
+ 
+-	/*
+-	 * We don't have any available event to return to the caller.  We need
+-	 * to sleep here, and we will be woken by ep_poll_callback() when events
+-	 * become available.
+-	 */
+-	if (!waiter) {
+-		waiter = true;
+-		init_waitqueue_entry(&wait, current);
+-
++	do {
++		/*
++		 * Internally init_wait() uses autoremove_wake_function(),
++		 * thus wait entry is removed from the wait queue on each
++		 * wakeup. Why it is important? In case of several waiters
++		 * each new wakeup will hit the next waiter, giving it the
++		 * chance to harvest new event. Otherwise wakeup can be
++		 * lost. This is also good performance-wise, because on
++		 * normal wakeup path no need to call __remove_wait_queue()
++		 * explicitly, thus ep->lock is not taken, which halts the
++		 * event delivery.
++		 */
++		init_wait(&wait);
+ 		write_lock_irq(&ep->lock);
+ 		__add_wait_queue_exclusive(&ep->wq, &wait);
+ 		write_unlock_irq(&ep->lock);
+-	}
+ 
+-	for (;;) {
+ 		/*
+ 		 * We don't want to sleep if the ep_poll_callback() sends us
+ 		 * a wakeup in between. That's why we set the task state
+@@ -1916,10 +1917,20 @@ fetch_events:
+ 			timed_out = 1;
+ 			break;
+ 		}
+-	}
++
++		/* We were woken up, thus go and try to harvest some events */
++		eavail = 1;
++
++	} while (0);
+ 
+ 	__set_current_state(TASK_RUNNING);
+ 
++	if (!list_empty_careful(&wait.entry)) {
++		write_lock_irq(&ep->lock);
++		__remove_wait_queue(&ep->wq, &wait);
++		write_unlock_irq(&ep->lock);
++	}
++
+ send_events:
+ 	/*
+ 	 * Try to transfer events to user space. In case we get 0 events and
+@@ -1930,12 +1941,6 @@ send_events:
+ 	    !(res = ep_send_events(ep, events, maxevents)) && !timed_out)
+ 		goto fetch_events;
+ 
+-	if (waiter) {
+-		write_lock_irq(&ep->lock);
+-		__remove_wait_queue(&ep->wq, &wait);
+-		write_unlock_irq(&ep->lock);
+-	}
+-
+ 	return res;
+ }
+ 
+diff --git a/fs/notify/fanotify/fanotify.c b/fs/notify/fanotify/fanotify.c
+index 5778d1347b35..f5d30573f4a9 100644
+--- a/fs/notify/fanotify/fanotify.c
++++ b/fs/notify/fanotify/fanotify.c
+@@ -26,7 +26,7 @@ static bool should_merge(struct fsnotify_event *old_fsn,
+ 	old = FANOTIFY_E(old_fsn);
+ 	new = FANOTIFY_E(new_fsn);
+ 
+-	if (old_fsn->inode != new_fsn->inode || old->pid != new->pid ||
++	if (old_fsn->objectid != new_fsn->objectid || old->pid != new->pid ||
+ 	    old->fh_type != new->fh_type || old->fh_len != new->fh_len)
+ 		return false;
+ 
+@@ -314,7 +314,12 @@ struct fanotify_event *fanotify_alloc_event(struct fsnotify_group *group,
+ 	if (!event)
+ 		goto out;
+ init: __maybe_unused
+-	fsnotify_init_event(&event->fse, inode);
++	/*
++	 * Use the victim inode instead of the watching inode as the id for
++	 * event queue, so event reported on parent is merged with event
++	 * reported on child when both directory and child watches exist.
++	 */
++	fsnotify_init_event(&event->fse, (unsigned long)id);
+ 	event->mask = mask;
+ 	if (FAN_GROUP_FLAG(group, FAN_REPORT_TID))
+ 		event->pid = get_pid(task_pid(current));
+diff --git a/fs/notify/inotify/inotify_fsnotify.c b/fs/notify/inotify/inotify_fsnotify.c
+index d510223d302c..589dee962993 100644
+--- a/fs/notify/inotify/inotify_fsnotify.c
++++ b/fs/notify/inotify/inotify_fsnotify.c
+@@ -39,7 +39,7 @@ static bool event_compare(struct fsnotify_event *old_fsn,
+ 	if (old->mask & FS_IN_IGNORED)
+ 		return false;
+ 	if ((old->mask == new->mask) &&
+-	    (old_fsn->inode == new_fsn->inode) &&
++	    (old_fsn->objectid == new_fsn->objectid) &&
+ 	    (old->name_len == new->name_len) &&
+ 	    (!old->name_len || !strcmp(old->name, new->name)))
+ 		return true;
+@@ -118,7 +118,7 @@ int inotify_handle_event(struct fsnotify_group *group,
+ 		mask &= ~IN_ISDIR;
+ 
+ 	fsn_event = &event->fse;
+-	fsnotify_init_event(fsn_event, inode);
++	fsnotify_init_event(fsn_event, (unsigned long)inode);
+ 	event->mask = mask;
+ 	event->wd = i_mark->wd;
+ 	event->sync_cookie = cookie;
+diff --git a/fs/notify/inotify/inotify_user.c b/fs/notify/inotify/inotify_user.c
+index 107537a543fd..81ffc8629fc4 100644
+--- a/fs/notify/inotify/inotify_user.c
++++ b/fs/notify/inotify/inotify_user.c
+@@ -635,7 +635,7 @@ static struct fsnotify_group *inotify_new_group(unsigned int max_events)
+ 		return ERR_PTR(-ENOMEM);
+ 	}
+ 	group->overflow_event = &oevent->fse;
+-	fsnotify_init_event(group->overflow_event, NULL);
++	fsnotify_init_event(group->overflow_event, 0);
+ 	oevent->mask = FS_Q_OVERFLOW;
+ 	oevent->wd = -1;
+ 	oevent->sync_cookie = 0;
+diff --git a/include/linux/backing-dev-defs.h b/include/linux/backing-dev-defs.h
+index 4fc87dee005a..2849bdbb3acb 100644
+--- a/include/linux/backing-dev-defs.h
++++ b/include/linux/backing-dev-defs.h
+@@ -220,6 +220,7 @@ struct backing_dev_info {
+ 	wait_queue_head_t wb_waitq;
+ 
+ 	struct device *dev;
++	char dev_name[64];
+ 	struct device *owner;
+ 
+ 	struct timer_list laptop_mode_wb_timer;
+diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h
+index f88197c1ffc2..c9ad5c3b7b4b 100644
+--- a/include/linux/backing-dev.h
++++ b/include/linux/backing-dev.h
+@@ -505,13 +505,6 @@ static inline int bdi_rw_congested(struct backing_dev_info *bdi)
+ 				  (1 << WB_async_congested));
+ }
+ 
+-extern const char *bdi_unknown_name;
+-
+-static inline const char *bdi_dev_name(struct backing_dev_info *bdi)
+-{
+-	if (!bdi || !bdi->dev)
+-		return bdi_unknown_name;
+-	return dev_name(bdi->dev);
+-}
++const char *bdi_dev_name(struct backing_dev_info *bdi);
+ 
+ #endif	/* _LINUX_BACKING_DEV_H */
+diff --git a/include/linux/fsnotify_backend.h b/include/linux/fsnotify_backend.h
+index 1915bdba2fad..64cfb5446f4d 100644
+--- a/include/linux/fsnotify_backend.h
++++ b/include/linux/fsnotify_backend.h
+@@ -133,8 +133,7 @@ struct fsnotify_ops {
+  */
+ struct fsnotify_event {
+ 	struct list_head list;
+-	/* inode may ONLY be dereferenced during handle_event(). */
+-	struct inode *inode;	/* either the inode the event happened to or its parent */
++	unsigned long objectid;	/* identifier for queue merges */
+ };
+ 
+ /*
+@@ -500,10 +499,10 @@ extern void fsnotify_finish_user_wait(struct fsnotify_iter_info *iter_info);
+ extern bool fsnotify_prepare_user_wait(struct fsnotify_iter_info *iter_info);
+ 
+ static inline void fsnotify_init_event(struct fsnotify_event *event,
+-				       struct inode *inode)
++				       unsigned long objectid)
+ {
+ 	INIT_LIST_HEAD(&event->list);
+-	event->inode = inode;
++	event->objectid = objectid;
+ }
+ 
+ #else
+diff --git a/include/linux/virtio_net.h b/include/linux/virtio_net.h
+index 0d1fe9297ac6..6f6ade63b04c 100644
+--- a/include/linux/virtio_net.h
++++ b/include/linux/virtio_net.h
+@@ -3,6 +3,8 @@
+ #define _LINUX_VIRTIO_NET_H
+ 
+ #include <linux/if_vlan.h>
++#include <uapi/linux/tcp.h>
++#include <uapi/linux/udp.h>
+ #include <uapi/linux/virtio_net.h>
+ 
+ static inline int virtio_net_hdr_set_proto(struct sk_buff *skb,
+@@ -28,17 +30,25 @@ static inline int virtio_net_hdr_to_skb(struct sk_buff *skb,
+ 					bool little_endian)
+ {
+ 	unsigned int gso_type = 0;
++	unsigned int thlen = 0;
++	unsigned int ip_proto;
+ 
+ 	if (hdr->gso_type != VIRTIO_NET_HDR_GSO_NONE) {
+ 		switch (hdr->gso_type & ~VIRTIO_NET_HDR_GSO_ECN) {
+ 		case VIRTIO_NET_HDR_GSO_TCPV4:
+ 			gso_type = SKB_GSO_TCPV4;
++			ip_proto = IPPROTO_TCP;
++			thlen = sizeof(struct tcphdr);
+ 			break;
+ 		case VIRTIO_NET_HDR_GSO_TCPV6:
+ 			gso_type = SKB_GSO_TCPV6;
++			ip_proto = IPPROTO_TCP;
++			thlen = sizeof(struct tcphdr);
+ 			break;
+ 		case VIRTIO_NET_HDR_GSO_UDP:
+ 			gso_type = SKB_GSO_UDP;
++			ip_proto = IPPROTO_UDP;
++			thlen = sizeof(struct udphdr);
+ 			break;
+ 		default:
+ 			return -EINVAL;
+@@ -57,16 +67,22 @@ static inline int virtio_net_hdr_to_skb(struct sk_buff *skb,
+ 
+ 		if (!skb_partial_csum_set(skb, start, off))
+ 			return -EINVAL;
++
++		if (skb_transport_offset(skb) + thlen > skb_headlen(skb))
++			return -EINVAL;
+ 	} else {
+ 		/* gso packets without NEEDS_CSUM do not set transport_offset.
+ 		 * probe and drop if does not match one of the above types.
+ 		 */
+ 		if (gso_type && skb->network_header) {
++			struct flow_keys_basic keys;
++
+ 			if (!skb->protocol)
+ 				virtio_net_hdr_set_proto(skb, hdr);
+ retry:
+-			skb_probe_transport_header(skb);
+-			if (!skb_transport_header_was_set(skb)) {
++			if (!skb_flow_dissect_flow_keys_basic(NULL, skb, &keys,
++							      NULL, 0, 0, 0,
++							      0)) {
+ 				/* UFO does not specify ipv4 or 6: try both */
+ 				if (gso_type & SKB_GSO_UDP &&
+ 				    skb->protocol == htons(ETH_P_IP)) {
+@@ -75,6 +91,12 @@ retry:
+ 				}
+ 				return -EINVAL;
+ 			}
++
++			if (keys.control.thoff + thlen > skb_headlen(skb) ||
++			    keys.basic.ip_proto != ip_proto)
++				return -EINVAL;
++
++			skb_set_transport_header(skb, keys.control.thoff);
+ 		}
+ 	}
+ 
+diff --git a/include/net/inet_ecn.h b/include/net/inet_ecn.h
+index c8e2bebd8d93..0f0d1efe06dd 100644
+--- a/include/net/inet_ecn.h
++++ b/include/net/inet_ecn.h
+@@ -99,6 +99,20 @@ static inline int IP_ECN_set_ce(struct iphdr *iph)
+ 	return 1;
+ }
+ 
++static inline int IP_ECN_set_ect1(struct iphdr *iph)
++{
++	u32 check = (__force u32)iph->check;
++
++	if ((iph->tos & INET_ECN_MASK) != INET_ECN_ECT_0)
++		return 0;
++
++	check += (__force u16)htons(0x100);
++
++	iph->check = (__force __sum16)(check + (check>=0xFFFF));
++	iph->tos ^= INET_ECN_MASK;
++	return 1;
++}
++
+ static inline void IP_ECN_clear(struct iphdr *iph)
+ {
+ 	iph->tos &= ~INET_ECN_MASK;
+@@ -134,6 +148,22 @@ static inline int IP6_ECN_set_ce(struct sk_buff *skb, struct ipv6hdr *iph)
+ 	return 1;
+ }
+ 
++static inline int IP6_ECN_set_ect1(struct sk_buff *skb, struct ipv6hdr *iph)
++{
++	__be32 from, to;
++
++	if ((ipv6_get_dsfield(iph) & INET_ECN_MASK) != INET_ECN_ECT_0)
++		return 0;
++
++	from = *(__be32 *)iph;
++	to = from ^ htonl(INET_ECN_MASK << 20);
++	*(__be32 *)iph = to;
++	if (skb->ip_summed == CHECKSUM_COMPLETE)
++		skb->csum = csum_add(csum_sub(skb->csum, (__force __wsum)from),
++				     (__force __wsum)to);
++	return 1;
++}
++
+ static inline void ipv6_copy_dscp(unsigned int dscp, struct ipv6hdr *inner)
+ {
+ 	dscp &= ~INET_ECN_MASK;
+@@ -159,6 +189,25 @@ static inline int INET_ECN_set_ce(struct sk_buff *skb)
+ 	return 0;
+ }
+ 
++static inline int INET_ECN_set_ect1(struct sk_buff *skb)
++{
++	switch (skb->protocol) {
++	case cpu_to_be16(ETH_P_IP):
++		if (skb_network_header(skb) + sizeof(struct iphdr) <=
++		    skb_tail_pointer(skb))
++			return IP_ECN_set_ect1(ip_hdr(skb));
++		break;
++
++	case cpu_to_be16(ETH_P_IPV6):
++		if (skb_network_header(skb) + sizeof(struct ipv6hdr) <=
++		    skb_tail_pointer(skb))
++			return IP6_ECN_set_ect1(skb, ipv6_hdr(skb));
++		break;
++	}
++
++	return 0;
++}
++
+ /*
+  * RFC 6040 4.2
+  *  To decapsulate the inner header at the tunnel egress, a compliant
+@@ -208,8 +257,12 @@ static inline int INET_ECN_decapsulate(struct sk_buff *skb,
+ 	int rc;
+ 
+ 	rc = __INET_ECN_decapsulate(outer, inner, &set_ce);
+-	if (!rc && set_ce)
+-		INET_ECN_set_ce(skb);
++	if (!rc) {
++		if (set_ce)
++			INET_ECN_set_ce(skb);
++		else if ((outer & INET_ECN_MASK) == INET_ECN_ECT_1)
++			INET_ECN_set_ect1(skb);
++	}
+ 
+ 	return rc;
+ }
+diff --git a/include/net/ip6_fib.h b/include/net/ip6_fib.h
+index 4b5656c71abc..bd0f1595bdc7 100644
+--- a/include/net/ip6_fib.h
++++ b/include/net/ip6_fib.h
+@@ -177,6 +177,7 @@ struct fib6_info {
+ struct rt6_info {
+ 	struct dst_entry		dst;
+ 	struct fib6_info __rcu		*from;
++	int				sernum;
+ 
+ 	struct rt6key			rt6i_dst;
+ 	struct rt6key			rt6i_src;
+@@ -260,6 +261,9 @@ static inline u32 rt6_get_cookie(const struct rt6_info *rt)
+ 	struct fib6_info *from;
+ 	u32 cookie = 0;
+ 
++	if (rt->sernum)
++		return rt->sernum;
++
+ 	rcu_read_lock();
+ 
+ 	from = rcu_dereference(rt->from);
+diff --git a/include/net/net_namespace.h b/include/net/net_namespace.h
+index c7e15a213ef2..0fca98a3d2d3 100644
+--- a/include/net/net_namespace.h
++++ b/include/net/net_namespace.h
+@@ -428,6 +428,13 @@ static inline int rt_genid_ipv4(struct net *net)
+ 	return atomic_read(&net->ipv4.rt_genid);
+ }
+ 
++#if IS_ENABLED(CONFIG_IPV6)
++static inline int rt_genid_ipv6(const struct net *net)
++{
++	return atomic_read(&net->ipv6.fib6_sernum);
++}
++#endif
++
+ static inline void rt_genid_bump_ipv4(struct net *net)
+ {
+ 	atomic_inc(&net->ipv4.rt_genid);
+diff --git a/ipc/mqueue.c b/ipc/mqueue.c
+index 3d920ff15c80..2ea0c08188e6 100644
+--- a/ipc/mqueue.c
++++ b/ipc/mqueue.c
+@@ -82,6 +82,7 @@ struct mqueue_inode_info {
+ 
+ 	struct sigevent notify;
+ 	struct pid *notify_owner;
++	u32 notify_self_exec_id;
+ 	struct user_namespace *notify_user_ns;
+ 	struct user_struct *user;	/* user who created, for accounting */
+ 	struct sock *notify_sock;
+@@ -709,28 +710,44 @@ static void __do_notify(struct mqueue_inode_info *info)
+ 	 * synchronously. */
+ 	if (info->notify_owner &&
+ 	    info->attr.mq_curmsgs == 1) {
+-		struct kernel_siginfo sig_i;
+ 		switch (info->notify.sigev_notify) {
+ 		case SIGEV_NONE:
+ 			break;
+-		case SIGEV_SIGNAL:
+-			/* sends signal */
++		case SIGEV_SIGNAL: {
++			struct kernel_siginfo sig_i;
++			struct task_struct *task;
++
++			/* do_mq_notify() accepts sigev_signo == 0, why?? */
++			if (!info->notify.sigev_signo)
++				break;
+ 
+ 			clear_siginfo(&sig_i);
+ 			sig_i.si_signo = info->notify.sigev_signo;
+ 			sig_i.si_errno = 0;
+ 			sig_i.si_code = SI_MESGQ;
+ 			sig_i.si_value = info->notify.sigev_value;
+-			/* map current pid/uid into info->owner's namespaces */
+ 			rcu_read_lock();
++			/* map current pid/uid into info->owner's namespaces */
+ 			sig_i.si_pid = task_tgid_nr_ns(current,
+ 						ns_of_pid(info->notify_owner));
+-			sig_i.si_uid = from_kuid_munged(info->notify_user_ns, current_uid());
++			sig_i.si_uid = from_kuid_munged(info->notify_user_ns,
++						current_uid());
++			/*
++			 * We can't use kill_pid_info(), this signal should
++			 * bypass check_kill_permission(). It is from kernel
++			 * but si_fromuser() can't know this.
++			 * We do check the self_exec_id, to avoid sending
++			 * signals to programs that don't expect them.
++			 */
++			task = pid_task(info->notify_owner, PIDTYPE_TGID);
++			if (task && task->self_exec_id ==
++						info->notify_self_exec_id) {
++				do_send_sig_info(info->notify.sigev_signo,
++						&sig_i, task, PIDTYPE_TGID);
++			}
+ 			rcu_read_unlock();
+-
+-			kill_pid_info(info->notify.sigev_signo,
+-				      &sig_i, info->notify_owner);
+ 			break;
++		}
+ 		case SIGEV_THREAD:
+ 			set_cookie(info->notify_cookie, NOTIFY_WOKENUP);
+ 			netlink_sendskb(info->notify_sock, info->notify_cookie);
+@@ -1315,6 +1332,7 @@ retry:
+ 			info->notify.sigev_signo = notification->sigev_signo;
+ 			info->notify.sigev_value = notification->sigev_value;
+ 			info->notify.sigev_notify = SIGEV_SIGNAL;
++			info->notify_self_exec_id = current->self_exec_id;
+ 			break;
+ 		}
+ 
+diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
+index c6ccaf6c62f7..721947b9962d 100644
+--- a/kernel/trace/trace.c
++++ b/kernel/trace/trace.c
+@@ -8318,6 +8318,19 @@ static int allocate_trace_buffers(struct trace_array *tr, int size)
+ 	 */
+ 	allocate_snapshot = false;
+ #endif
++
++	/*
++	 * Because of some magic with the way alloc_percpu() works on
++	 * x86_64, we need to synchronize the pgd of all the tables,
++	 * otherwise the trace events that happen in x86_64 page fault
++	 * handlers can't cope with accessing the chance that a
++	 * alloc_percpu()'d memory might be touched in the page fault trace
++	 * event. Oh, and we need to audit all other alloc_percpu() and vmalloc()
++	 * calls in tracing, because something might get triggered within a
++	 * page fault trace event!
++	 */
++	vmalloc_sync_mappings();
++
+ 	return 0;
+ }
+ 
+diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c
+index 2f0f7fcee73e..fba4b48451f6 100644
+--- a/kernel/trace/trace_kprobe.c
++++ b/kernel/trace/trace_kprobe.c
+@@ -454,7 +454,7 @@ static bool __within_notrace_func(unsigned long addr)
+ 
+ static bool within_notrace_func(struct trace_kprobe *tk)
+ {
+-	unsigned long addr = addr = trace_kprobe_address(tk);
++	unsigned long addr = trace_kprobe_address(tk);
+ 	char symname[KSYM_NAME_LEN], *p;
+ 
+ 	if (!__within_notrace_func(addr))
+diff --git a/kernel/umh.c b/kernel/umh.c
+index 7f255b5a8845..11bf5eea474c 100644
+--- a/kernel/umh.c
++++ b/kernel/umh.c
+@@ -544,6 +544,11 @@ EXPORT_SYMBOL_GPL(fork_usermode_blob);
+  * Runs a user-space application.  The application is started
+  * asynchronously if wait is not set, and runs as a child of system workqueues.
+  * (ie. it runs with full root capabilities and optimized affinity).
++ *
++ * Note: successful return value does not guarantee the helper was called at
++ * all. You can't rely on sub_info->{init,cleanup} being called even for
++ * UMH_WAIT_* wait modes as STATIC_USERMODEHELPER_PATH="" turns all helpers
++ * into a successful no-op.
+  */
+ int call_usermodehelper_exec(struct subprocess_info *sub_info, int wait)
+ {
+diff --git a/mm/backing-dev.c b/mm/backing-dev.c
+index 62f05f605fb5..3f2480e4c5af 100644
+--- a/mm/backing-dev.c
++++ b/mm/backing-dev.c
+@@ -21,7 +21,7 @@ struct backing_dev_info noop_backing_dev_info = {
+ EXPORT_SYMBOL_GPL(noop_backing_dev_info);
+ 
+ static struct class *bdi_class;
+-const char *bdi_unknown_name = "(unknown)";
++static const char *bdi_unknown_name = "(unknown)";
+ 
+ /*
+  * bdi_lock protects bdi_tree and updates to bdi_list. bdi_list has RCU
+@@ -938,7 +938,8 @@ int bdi_register_va(struct backing_dev_info *bdi, const char *fmt, va_list args)
+ 	if (bdi->dev)	/* The driver needs to use separate queues per device */
+ 		return 0;
+ 
+-	dev = device_create_vargs(bdi_class, NULL, MKDEV(0, 0), bdi, fmt, args);
++	vsnprintf(bdi->dev_name, sizeof(bdi->dev_name), fmt, args);
++	dev = device_create(bdi_class, NULL, MKDEV(0, 0), bdi, bdi->dev_name);
+ 	if (IS_ERR(dev))
+ 		return PTR_ERR(dev);
+ 
+@@ -1043,6 +1044,14 @@ void bdi_put(struct backing_dev_info *bdi)
+ }
+ EXPORT_SYMBOL(bdi_put);
+ 
++const char *bdi_dev_name(struct backing_dev_info *bdi)
++{
++	if (!bdi || !bdi->dev)
++		return bdi_unknown_name;
++	return bdi->dev_name;
++}
++EXPORT_SYMBOL_GPL(bdi_dev_name);
++
+ static wait_queue_head_t congestion_wqh[2] = {
+ 		__WAIT_QUEUE_HEAD_INITIALIZER(congestion_wqh[0]),
+ 		__WAIT_QUEUE_HEAD_INITIALIZER(congestion_wqh[1])
+diff --git a/mm/memcontrol.c b/mm/memcontrol.c
+index 8159000781be..0d6f3ea86738 100644
+--- a/mm/memcontrol.c
++++ b/mm/memcontrol.c
+@@ -5101,19 +5101,22 @@ static struct mem_cgroup *mem_cgroup_alloc(void)
+ 	unsigned int size;
+ 	int node;
+ 	int __maybe_unused i;
++	long error = -ENOMEM;
+ 
+ 	size = sizeof(struct mem_cgroup);
+ 	size += nr_node_ids * sizeof(struct mem_cgroup_per_node *);
+ 
+ 	memcg = kzalloc(size, GFP_KERNEL);
+ 	if (!memcg)
+-		return NULL;
++		return ERR_PTR(error);
+ 
+ 	memcg->id.id = idr_alloc(&mem_cgroup_idr, NULL,
+ 				 1, MEM_CGROUP_ID_MAX,
+ 				 GFP_KERNEL);
+-	if (memcg->id.id < 0)
++	if (memcg->id.id < 0) {
++		error = memcg->id.id;
+ 		goto fail;
++	}
+ 
+ 	memcg->vmstats_local = alloc_percpu(struct memcg_vmstats_percpu);
+ 	if (!memcg->vmstats_local)
+@@ -5158,7 +5161,7 @@ static struct mem_cgroup *mem_cgroup_alloc(void)
+ fail:
+ 	mem_cgroup_id_remove(memcg);
+ 	__mem_cgroup_free(memcg);
+-	return NULL;
++	return ERR_PTR(error);
+ }
+ 
+ static struct cgroup_subsys_state * __ref
+@@ -5169,8 +5172,8 @@ mem_cgroup_css_alloc(struct cgroup_subsys_state *parent_css)
+ 	long error = -ENOMEM;
+ 
+ 	memcg = mem_cgroup_alloc();
+-	if (!memcg)
+-		return ERR_PTR(error);
++	if (IS_ERR(memcg))
++		return ERR_CAST(memcg);
+ 
+ 	memcg->high = PAGE_COUNTER_MAX;
+ 	memcg->soft_limit = PAGE_COUNTER_MAX;
+@@ -5220,7 +5223,7 @@ mem_cgroup_css_alloc(struct cgroup_subsys_state *parent_css)
+ fail:
+ 	mem_cgroup_id_remove(memcg);
+ 	mem_cgroup_free(memcg);
+-	return ERR_PTR(-ENOMEM);
++	return ERR_PTR(error);
+ }
+ 
+ static int mem_cgroup_css_online(struct cgroup_subsys_state *css)
+diff --git a/mm/page_alloc.c b/mm/page_alloc.c
+index d387ca74cb5a..98d5c940facd 100644
+--- a/mm/page_alloc.c
++++ b/mm/page_alloc.c
+@@ -1555,6 +1555,7 @@ void set_zone_contiguous(struct zone *zone)
+ 		if (!__pageblock_pfn_to_page(block_start_pfn,
+ 					     block_end_pfn, zone))
+ 			return;
++		cond_resched();
+ 	}
+ 
+ 	/* We confirm that there is no hole */
+@@ -2350,6 +2351,14 @@ static inline void boost_watermark(struct zone *zone)
+ 
+ 	if (!watermark_boost_factor)
+ 		return;
++	/*
++	 * Don't bother in zones that are unlikely to produce results.
++	 * On small machines, including kdump capture kernels running
++	 * in a small area, boosting the watermark can cause an out of
++	 * memory situation immediately.
++	 */
++	if ((pageblock_nr_pages * 4) > zone_managed_pages(zone))
++		return;
+ 
+ 	max_boost = mult_frac(zone->_watermark[WMARK_HIGH],
+ 			watermark_boost_factor, 10000);
+diff --git a/net/batman-adv/bat_v_ogm.c b/net/batman-adv/bat_v_ogm.c
+index 8033f24f506c..a9e7540c5691 100644
+--- a/net/batman-adv/bat_v_ogm.c
++++ b/net/batman-adv/bat_v_ogm.c
+@@ -897,7 +897,7 @@ static void batadv_v_ogm_process(const struct sk_buff *skb, int ogm_offset,
+ 
+ 	orig_node = batadv_v_ogm_orig_get(bat_priv, ogm_packet->orig);
+ 	if (!orig_node)
+-		return;
++		goto out;
+ 
+ 	neigh_node = batadv_neigh_node_get_or_create(orig_node, if_incoming,
+ 						     ethhdr->h_source);
+diff --git a/net/batman-adv/network-coding.c b/net/batman-adv/network-coding.c
+index 580609389f0f..70e3b161c663 100644
+--- a/net/batman-adv/network-coding.c
++++ b/net/batman-adv/network-coding.c
+@@ -1009,15 +1009,8 @@ static struct batadv_nc_path *batadv_nc_get_path(struct batadv_priv *bat_priv,
+  */
+ static u8 batadv_nc_random_weight_tq(u8 tq)
+ {
+-	u8 rand_val, rand_tq;
+-
+-	get_random_bytes(&rand_val, sizeof(rand_val));
+-
+ 	/* randomize the estimated packet loss (max TQ - estimated TQ) */
+-	rand_tq = rand_val * (BATADV_TQ_MAX_VALUE - tq);
+-
+-	/* normalize the randomized packet loss */
+-	rand_tq /= BATADV_TQ_MAX_VALUE;
++	u8 rand_tq = prandom_u32_max(BATADV_TQ_MAX_VALUE + 1 - tq);
+ 
+ 	/* convert to (randomized) estimated tq again */
+ 	return BATADV_TQ_MAX_VALUE - rand_tq;
+diff --git a/net/batman-adv/sysfs.c b/net/batman-adv/sysfs.c
+index e5bbc28ed12c..079a13493880 100644
+--- a/net/batman-adv/sysfs.c
++++ b/net/batman-adv/sysfs.c
+@@ -1150,7 +1150,7 @@ static ssize_t batadv_store_throughput_override(struct kobject *kobj,
+ 	ret = batadv_parse_throughput(net_dev, buff, "throughput_override",
+ 				      &tp_override);
+ 	if (!ret)
+-		return count;
++		goto out;
+ 
+ 	old_tp_override = atomic_read(&hard_iface->bat_v.throughput_override);
+ 	if (old_tp_override == tp_override)
+@@ -1190,6 +1190,7 @@ static ssize_t batadv_show_throughput_override(struct kobject *kobj,
+ 
+ 	tp_override = atomic_read(&hard_iface->bat_v.throughput_override);
+ 
++	batadv_hardif_put(hard_iface);
+ 	return sprintf(buff, "%u.%u MBit\n", tp_override / 10,
+ 		       tp_override % 10);
+ }
+diff --git a/net/core/devlink.c b/net/core/devlink.c
+index 4c25f1aa2d37..5667cae57072 100644
+--- a/net/core/devlink.c
++++ b/net/core/devlink.c
+@@ -3907,6 +3907,11 @@ static int devlink_nl_cmd_region_read_dumpit(struct sk_buff *skb,
+ 		end_offset = nla_get_u64(attrs[DEVLINK_ATTR_REGION_CHUNK_ADDR]);
+ 		end_offset += nla_get_u64(attrs[DEVLINK_ATTR_REGION_CHUNK_LEN]);
+ 		dump = false;
++
++		if (start_offset == end_offset) {
++			err = 0;
++			goto nla_put_failure;
++		}
+ 	}
+ 
+ 	err = devlink_nl_region_read_snapshot_fill(skb, devlink,
+diff --git a/net/core/neighbour.c b/net/core/neighbour.c
+index 920784a9b7ff..7b40d12f0c22 100644
+--- a/net/core/neighbour.c
++++ b/net/core/neighbour.c
+@@ -1954,6 +1954,9 @@ static int neigh_add(struct sk_buff *skb, struct nlmsghdr *nlh,
+ 				   NEIGH_UPDATE_F_OVERRIDE_ISROUTER);
+ 	}
+ 
++	if (protocol)
++		neigh->protocol = protocol;
++
+ 	if (ndm->ndm_flags & NTF_EXT_LEARNED)
+ 		flags |= NEIGH_UPDATE_F_EXT_LEARNED;
+ 
+@@ -1967,9 +1970,6 @@ static int neigh_add(struct sk_buff *skb, struct nlmsghdr *nlh,
+ 		err = __neigh_update(neigh, lladdr, ndm->ndm_state, flags,
+ 				     NETLINK_CB(skb).portid, extack);
+ 
+-	if (protocol)
+-		neigh->protocol = protocol;
+-
+ 	neigh_release(neigh);
+ 
+ out:
+diff --git a/net/dsa/master.c b/net/dsa/master.c
+index 3255dfc97f86..be0b4ed3b7d8 100644
+--- a/net/dsa/master.c
++++ b/net/dsa/master.c
+@@ -259,7 +259,8 @@ static void dsa_master_ndo_teardown(struct net_device *dev)
+ {
+ 	struct dsa_port *cpu_dp = dev->dsa_ptr;
+ 
+-	dev->netdev_ops = cpu_dp->orig_ndo_ops;
++	if (cpu_dp->orig_ndo_ops)
++		dev->netdev_ops = cpu_dp->orig_ndo_ops;
+ 	cpu_dp->orig_ndo_ops = NULL;
+ }
+ 
+diff --git a/net/ipv6/route.c b/net/ipv6/route.c
+index 894c7370c1bd..c81d8e9e5169 100644
+--- a/net/ipv6/route.c
++++ b/net/ipv6/route.c
+@@ -1388,9 +1388,18 @@ static struct rt6_info *ip6_rt_pcpu_alloc(const struct fib6_result *res)
+ 	}
+ 	ip6_rt_copy_init(pcpu_rt, res);
+ 	pcpu_rt->rt6i_flags |= RTF_PCPU;
++
++	if (f6i->nh)
++		pcpu_rt->sernum = rt_genid_ipv6(dev_net(dev));
++
+ 	return pcpu_rt;
+ }
+ 
++static bool rt6_is_valid(const struct rt6_info *rt6)
++{
++	return rt6->sernum == rt_genid_ipv6(dev_net(rt6->dst.dev));
++}
++
+ /* It should be called with rcu_read_lock() acquired */
+ static struct rt6_info *rt6_get_pcpu_route(const struct fib6_result *res)
+ {
+@@ -1398,6 +1407,19 @@ static struct rt6_info *rt6_get_pcpu_route(const struct fib6_result *res)
+ 
+ 	pcpu_rt = this_cpu_read(*res->nh->rt6i_pcpu);
+ 
++	if (pcpu_rt && pcpu_rt->sernum && !rt6_is_valid(pcpu_rt)) {
++		struct rt6_info *prev, **p;
++
++		p = this_cpu_ptr(res->nh->rt6i_pcpu);
++		prev = xchg(p, NULL);
++		if (prev) {
++			dst_dev_put(&prev->dst);
++			dst_release(&prev->dst);
++		}
++
++		pcpu_rt = NULL;
++	}
++
+ 	return pcpu_rt;
+ }
+ 
+@@ -2599,6 +2621,9 @@ static struct dst_entry *ip6_dst_check(struct dst_entry *dst, u32 cookie)
+ 
+ 	rt = container_of(dst, struct rt6_info, dst);
+ 
++	if (rt->sernum)
++		return rt6_is_valid(rt) ? dst : NULL;
++
+ 	rcu_read_lock();
+ 
+ 	/* All IPV6 dsts are created with ->obsolete set to the value
+diff --git a/net/netfilter/nf_nat_proto.c b/net/netfilter/nf_nat_proto.c
+index 3d816a1e5442..59151dc07fdc 100644
+--- a/net/netfilter/nf_nat_proto.c
++++ b/net/netfilter/nf_nat_proto.c
+@@ -68,15 +68,13 @@ static bool udp_manip_pkt(struct sk_buff *skb,
+ 			  enum nf_nat_manip_type maniptype)
+ {
+ 	struct udphdr *hdr;
+-	bool do_csum;
+ 
+ 	if (skb_ensure_writable(skb, hdroff + sizeof(*hdr)))
+ 		return false;
+ 
+ 	hdr = (struct udphdr *)(skb->data + hdroff);
+-	do_csum = hdr->check || skb->ip_summed == CHECKSUM_PARTIAL;
++	__udp_manip_pkt(skb, iphdroff, hdr, tuple, maniptype, !!hdr->check);
+ 
+-	__udp_manip_pkt(skb, iphdroff, hdr, tuple, maniptype, do_csum);
+ 	return true;
+ }
+ 
+diff --git a/net/netfilter/nfnetlink_osf.c b/net/netfilter/nfnetlink_osf.c
+index 9f5dea0064ea..916a3c7f9eaf 100644
+--- a/net/netfilter/nfnetlink_osf.c
++++ b/net/netfilter/nfnetlink_osf.c
+@@ -165,12 +165,12 @@ static bool nf_osf_match_one(const struct sk_buff *skb,
+ static const struct tcphdr *nf_osf_hdr_ctx_init(struct nf_osf_hdr_ctx *ctx,
+ 						const struct sk_buff *skb,
+ 						const struct iphdr *ip,
+-						unsigned char *opts)
++						unsigned char *opts,
++						struct tcphdr *_tcph)
+ {
+ 	const struct tcphdr *tcp;
+-	struct tcphdr _tcph;
+ 
+-	tcp = skb_header_pointer(skb, ip_hdrlen(skb), sizeof(struct tcphdr), &_tcph);
++	tcp = skb_header_pointer(skb, ip_hdrlen(skb), sizeof(struct tcphdr), _tcph);
+ 	if (!tcp)
+ 		return NULL;
+ 
+@@ -205,10 +205,11 @@ nf_osf_match(const struct sk_buff *skb, u_int8_t family,
+ 	int fmatch = FMATCH_WRONG;
+ 	struct nf_osf_hdr_ctx ctx;
+ 	const struct tcphdr *tcp;
++	struct tcphdr _tcph;
+ 
+ 	memset(&ctx, 0, sizeof(ctx));
+ 
+-	tcp = nf_osf_hdr_ctx_init(&ctx, skb, ip, opts);
++	tcp = nf_osf_hdr_ctx_init(&ctx, skb, ip, opts, &_tcph);
+ 	if (!tcp)
+ 		return false;
+ 
+@@ -265,10 +266,11 @@ bool nf_osf_find(const struct sk_buff *skb,
+ 	const struct nf_osf_finger *kf;
+ 	struct nf_osf_hdr_ctx ctx;
+ 	const struct tcphdr *tcp;
++	struct tcphdr _tcph;
+ 
+ 	memset(&ctx, 0, sizeof(ctx));
+ 
+-	tcp = nf_osf_hdr_ctx_init(&ctx, skb, ip, opts);
++	tcp = nf_osf_hdr_ctx_init(&ctx, skb, ip, opts, &_tcph);
+ 	if (!tcp)
+ 		return false;
+ 
+diff --git a/net/sched/sch_choke.c b/net/sched/sch_choke.c
+index dba70377bbd9..4021f726b58f 100644
+--- a/net/sched/sch_choke.c
++++ b/net/sched/sch_choke.c
+@@ -323,7 +323,8 @@ static void choke_reset(struct Qdisc *sch)
+ 
+ 	sch->q.qlen = 0;
+ 	sch->qstats.backlog = 0;
+-	memset(q->tab, 0, (q->tab_mask + 1) * sizeof(struct sk_buff *));
++	if (q->tab)
++		memset(q->tab, 0, (q->tab_mask + 1) * sizeof(struct sk_buff *));
+ 	q->head = q->tail = 0;
+ 	red_restart(&q->vars);
+ }
+diff --git a/net/sched/sch_fq_codel.c b/net/sched/sch_fq_codel.c
+index c261c0a18868..76d72c3f52ed 100644
+--- a/net/sched/sch_fq_codel.c
++++ b/net/sched/sch_fq_codel.c
+@@ -417,7 +417,7 @@ static int fq_codel_change(struct Qdisc *sch, struct nlattr *opt,
+ 		q->quantum = max(256U, nla_get_u32(tb[TCA_FQ_CODEL_QUANTUM]));
+ 
+ 	if (tb[TCA_FQ_CODEL_DROP_BATCH_SIZE])
+-		q->drop_batch_size = min(1U, nla_get_u32(tb[TCA_FQ_CODEL_DROP_BATCH_SIZE]));
++		q->drop_batch_size = max(1U, nla_get_u32(tb[TCA_FQ_CODEL_DROP_BATCH_SIZE]));
+ 
+ 	if (tb[TCA_FQ_CODEL_MEMORY_LIMIT])
+ 		q->memory_limit = min(1U << 31, nla_get_u32(tb[TCA_FQ_CODEL_MEMORY_LIMIT]));
+diff --git a/net/sched/sch_sfq.c b/net/sched/sch_sfq.c
+index c787d4d46017..5a6def5e4e6d 100644
+--- a/net/sched/sch_sfq.c
++++ b/net/sched/sch_sfq.c
+@@ -637,6 +637,15 @@ static int sfq_change(struct Qdisc *sch, struct nlattr *opt)
+ 	if (ctl->divisor &&
+ 	    (!is_power_of_2(ctl->divisor) || ctl->divisor > 65536))
+ 		return -EINVAL;
++
++	/* slot->allot is a short, make sure quantum is not too big. */
++	if (ctl->quantum) {
++		unsigned int scaled = SFQ_ALLOT_SIZE(ctl->quantum);
++
++		if (scaled <= 0 || scaled > SHRT_MAX)
++			return -EINVAL;
++	}
++
+ 	if (ctl_v1 && !red_check_params(ctl_v1->qth_min, ctl_v1->qth_max,
+ 					ctl_v1->Wlog))
+ 		return -EINVAL;
+diff --git a/net/sched/sch_skbprio.c b/net/sched/sch_skbprio.c
+index 0fb10abf7579..7a5e4c454715 100644
+--- a/net/sched/sch_skbprio.c
++++ b/net/sched/sch_skbprio.c
+@@ -169,6 +169,9 @@ static int skbprio_change(struct Qdisc *sch, struct nlattr *opt,
+ {
+ 	struct tc_skbprio_qopt *ctl = nla_data(opt);
+ 
++	if (opt->nla_len != nla_attr_size(sizeof(*ctl)))
++		return -EINVAL;
++
+ 	sch->limit = ctl->limit;
+ 	return 0;
+ }
+diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c
+index c6d83a64eac3..5625a9500f21 100644
+--- a/net/sctp/sm_statefuns.c
++++ b/net/sctp/sm_statefuns.c
+@@ -1865,7 +1865,7 @@ static enum sctp_disposition sctp_sf_do_dupcook_a(
+ 		 */
+ 		sctp_add_cmd_sf(commands, SCTP_CMD_REPLY, SCTP_CHUNK(repl));
+ 		return sctp_sf_do_9_2_start_shutdown(net, ep, asoc,
+-						     SCTP_ST_CHUNK(0), NULL,
++						     SCTP_ST_CHUNK(0), repl,
+ 						     commands);
+ 	} else {
+ 		sctp_add_cmd_sf(commands, SCTP_CMD_NEW_STATE,
+@@ -5470,7 +5470,7 @@ enum sctp_disposition sctp_sf_do_9_2_start_shutdown(
+ 	 * in the Cumulative TSN Ack field the last sequential TSN it
+ 	 * has received from the peer.
+ 	 */
+-	reply = sctp_make_shutdown(asoc, NULL);
++	reply = sctp_make_shutdown(asoc, arg);
+ 	if (!reply)
+ 		goto nomem;
+ 
+@@ -6068,7 +6068,7 @@ enum sctp_disposition sctp_sf_autoclose_timer_expire(
+ 	disposition = SCTP_DISPOSITION_CONSUME;
+ 	if (sctp_outq_is_empty(&asoc->outqueue)) {
+ 		disposition = sctp_sf_do_9_2_start_shutdown(net, ep, asoc, type,
+-							    arg, commands);
++							    NULL, commands);
+ 	}
+ 
+ 	return disposition;
+diff --git a/net/tipc/topsrv.c b/net/tipc/topsrv.c
+index 3a12fc18239b..73dbed0c4b6b 100644
+--- a/net/tipc/topsrv.c
++++ b/net/tipc/topsrv.c
+@@ -402,10 +402,11 @@ static int tipc_conn_rcv_from_sock(struct tipc_conn *con)
+ 		read_lock_bh(&sk->sk_callback_lock);
+ 		ret = tipc_conn_rcv_sub(srv, con, &s);
+ 		read_unlock_bh(&sk->sk_callback_lock);
++		if (!ret)
++			return 0;
+ 	}
+-	if (ret < 0)
+-		tipc_conn_close(con);
+ 
++	tipc_conn_close(con);
+ 	return ret;
+ }
+ 
+diff --git a/net/tls/tls_sw.c b/net/tls/tls_sw.c
+index 41e9c2932b34..5513a08a4308 100644
+--- a/net/tls/tls_sw.c
++++ b/net/tls/tls_sw.c
+@@ -797,6 +797,8 @@ static int bpf_exec_tx_verdict(struct sk_msg *msg, struct sock *sk,
+ 			*copied -= sk_msg_free(sk, msg);
+ 			tls_free_open_rec(sk);
+ 		}
++		if (psock)
++			sk_psock_put(sk, psock);
+ 		return err;
+ 	}
+ more_data:
+@@ -2076,8 +2078,9 @@ static void tls_data_ready(struct sock *sk)
+ 	strp_data_ready(&ctx->strp);
+ 
+ 	psock = sk_psock_get(sk);
+-	if (psock && !list_empty(&psock->ingress_msg)) {
+-		ctx->saved_data_ready(sk);
++	if (psock) {
++		if (!list_empty(&psock->ingress_msg))
++			ctx->saved_data_ready(sk);
+ 		sk_psock_put(sk, psock);
+ 	}
+ }
+diff --git a/scripts/decodecode b/scripts/decodecode
+index ba8b8d5834e6..fbdb325cdf4f 100755
+--- a/scripts/decodecode
++++ b/scripts/decodecode
+@@ -126,7 +126,7 @@ faultlinenum=$(( $(wc -l $T.oo  | cut -d" " -f1) - \
+ faultline=`cat $T.dis | head -1 | cut -d":" -f2-`
+ faultline=`echo "$faultline" | sed -e 's/\[/\\\[/g; s/\]/\\\]/g'`
+ 
+-cat $T.oo | sed -e "${faultlinenum}s/^\(.*:\)\(.*\)/\1\*\2\t\t<-- trapping instruction/"
++cat $T.oo | sed -e "${faultlinenum}s/^\([^:]*:\)\(.*\)/\1\*\2\t\t<-- trapping instruction/"
+ echo
+ cat $T.aa
+ cleanup
+diff --git a/tools/cgroup/iocost_monitor.py b/tools/cgroup/iocost_monitor.py
+index f79b23582a1d..7e344a78a627 100644
+--- a/tools/cgroup/iocost_monitor.py
++++ b/tools/cgroup/iocost_monitor.py
+@@ -159,7 +159,12 @@ class IocgStat:
+         else:
+             self.inflight_pct = 0
+ 
+-        self.debt_ms = iocg.abs_vdebt.counter.value_() / VTIME_PER_USEC / 1000
++        # vdebt used to be an atomic64_t and is now u64, support both
++        try:
++            self.debt_ms = iocg.abs_vdebt.counter.value_() / VTIME_PER_USEC / 1000
++        except:
++            self.debt_ms = iocg.abs_vdebt.value_() / VTIME_PER_USEC / 1000
++
+         self.use_delay = blkg.use_delay.counter.value_()
+         self.delay_ms = blkg.delay_nsec.counter.value_() / 1_000_000
+ 
+diff --git a/tools/objtool/check.c b/tools/objtool/check.c
+index d6a971326f87..fcc6cd404f56 100644
+--- a/tools/objtool/check.c
++++ b/tools/objtool/check.c
+@@ -1402,7 +1402,7 @@ static int update_insn_state_regs(struct instruction *insn, struct insn_state *s
+ 	struct cfi_reg *cfa = &state->cfa;
+ 	struct stack_op *op = &insn->stack_op;
+ 
+-	if (cfa->base != CFI_SP)
++	if (cfa->base != CFI_SP && cfa->base != CFI_SP_INDIRECT)
+ 		return 0;
+ 
+ 	/* push */
+diff --git a/virt/kvm/arm/hyp/aarch32.c b/virt/kvm/arm/hyp/aarch32.c
+index d31f267961e7..25c0e47d57cb 100644
+--- a/virt/kvm/arm/hyp/aarch32.c
++++ b/virt/kvm/arm/hyp/aarch32.c
+@@ -125,12 +125,16 @@ static void __hyp_text kvm_adjust_itstate(struct kvm_vcpu *vcpu)
+  */
+ void __hyp_text kvm_skip_instr32(struct kvm_vcpu *vcpu, bool is_wide_instr)
+ {
++	u32 pc = *vcpu_pc(vcpu);
+ 	bool is_thumb;
+ 
+ 	is_thumb = !!(*vcpu_cpsr(vcpu) & PSR_AA32_T_BIT);
+ 	if (is_thumb && !is_wide_instr)
+-		*vcpu_pc(vcpu) += 2;
++		pc += 2;
+ 	else
+-		*vcpu_pc(vcpu) += 4;
++		pc += 4;
++
++	*vcpu_pc(vcpu) = pc;
++
+ 	kvm_adjust_itstate(vcpu);
+ }
+diff --git a/virt/kvm/arm/vgic/vgic-mmio.c b/virt/kvm/arm/vgic/vgic-mmio.c
+index 0d090482720d..7eacf00e5abe 100644
+--- a/virt/kvm/arm/vgic/vgic-mmio.c
++++ b/virt/kvm/arm/vgic/vgic-mmio.c
+@@ -389,7 +389,7 @@ static void vgic_mmio_change_active(struct kvm_vcpu *vcpu, struct vgic_irq *irq,
+ static void vgic_change_active_prepare(struct kvm_vcpu *vcpu, u32 intid)
+ {
+ 	if (vcpu->kvm->arch.vgic.vgic_model == KVM_DEV_TYPE_ARM_VGIC_V3 ||
+-	    intid > VGIC_NR_PRIVATE_IRQS)
++	    intid >= VGIC_NR_PRIVATE_IRQS)
+ 		kvm_arm_halt_guest(vcpu->kvm);
+ }
+ 
+@@ -397,7 +397,7 @@ static void vgic_change_active_prepare(struct kvm_vcpu *vcpu, u32 intid)
+ static void vgic_change_active_finish(struct kvm_vcpu *vcpu, u32 intid)
+ {
+ 	if (vcpu->kvm->arch.vgic.vgic_model == KVM_DEV_TYPE_ARM_VGIC_V3 ||
+-	    intid > VGIC_NR_PRIVATE_IRQS)
++	    intid >= VGIC_NR_PRIVATE_IRQS)
+ 		kvm_arm_resume_guest(vcpu->kvm);
+ }
+