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-rw-r--r--0000_README4
-rw-r--r--1005_linux-4.20.6.patch4954
2 files changed, 4958 insertions, 0 deletions
diff --git a/0000_README b/0000_README
index 32a3dd6f..8bd41638 100644
--- a/0000_README
+++ b/0000_README
@@ -63,6 +63,10 @@ Patch: 1004_linux-4.20.5.patch
From: http://www.kernel.org
Desc: Linux 4.20.5
+Patch: 1005_linux-4.20.6.patch
+From: http://www.kernel.org
+Desc: Linux 4.20.6
+
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/1005_linux-4.20.6.patch b/1005_linux-4.20.6.patch
new file mode 100644
index 00000000..231d7f33
--- /dev/null
+++ b/1005_linux-4.20.6.patch
@@ -0,0 +1,4954 @@
+diff --git a/Makefile b/Makefile
+index 690f6a9d9f1b..523922ea9c97 100644
+--- a/Makefile
++++ b/Makefile
+@@ -1,7 +1,7 @@
+ # SPDX-License-Identifier: GPL-2.0
+ VERSION = 4
+ PATCHLEVEL = 20
+-SUBLEVEL = 5
++SUBLEVEL = 6
+ EXTRAVERSION =
+ NAME = Shy Crocodile
+
+diff --git a/arch/arc/include/asm/perf_event.h b/arch/arc/include/asm/perf_event.h
+index 9185541035cc..6958545390f0 100644
+--- a/arch/arc/include/asm/perf_event.h
++++ b/arch/arc/include/asm/perf_event.h
+@@ -103,7 +103,8 @@ static const char * const arc_pmu_ev_hw_map[] = {
+
+ /* counts condition */
+ [PERF_COUNT_HW_INSTRUCTIONS] = "iall",
+- [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = "ijmp", /* Excludes ZOL jumps */
++ /* All jump instructions that are taken */
++ [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = "ijmptak",
+ [PERF_COUNT_ARC_BPOK] = "bpok", /* NP-NT, PT-T, PNT-NT */
+ #ifdef CONFIG_ISA_ARCV2
+ [PERF_COUNT_HW_BRANCH_MISSES] = "bpmp",
+diff --git a/arch/arc/lib/memset-archs.S b/arch/arc/lib/memset-archs.S
+index 62ad4bcb841a..f230bb7092fd 100644
+--- a/arch/arc/lib/memset-archs.S
++++ b/arch/arc/lib/memset-archs.S
+@@ -7,11 +7,39 @@
+ */
+
+ #include <linux/linkage.h>
++#include <asm/cache.h>
+
+-#undef PREALLOC_NOT_AVAIL
++/*
++ * The memset implementation below is optimized to use prefetchw and prealloc
++ * instruction in case of CPU with 64B L1 data cache line (L1_CACHE_SHIFT == 6)
++ * If you want to implement optimized memset for other possible L1 data cache
++ * line lengths (32B and 128B) you should rewrite code carefully checking
++ * we don't call any prefetchw/prealloc instruction for L1 cache lines which
++ * don't belongs to memset area.
++ */
++
++#if L1_CACHE_SHIFT == 6
++
++.macro PREALLOC_INSTR reg, off
++ prealloc [\reg, \off]
++.endm
++
++.macro PREFETCHW_INSTR reg, off
++ prefetchw [\reg, \off]
++.endm
++
++#else
++
++.macro PREALLOC_INSTR
++.endm
++
++.macro PREFETCHW_INSTR
++.endm
++
++#endif
+
+ ENTRY_CFI(memset)
+- prefetchw [r0] ; Prefetch the write location
++ PREFETCHW_INSTR r0, 0 ; Prefetch the first write location
+ mov.f 0, r2
+ ;;; if size is zero
+ jz.d [blink]
+@@ -48,11 +76,8 @@ ENTRY_CFI(memset)
+
+ lpnz @.Lset64bytes
+ ;; LOOP START
+-#ifdef PREALLOC_NOT_AVAIL
+- prefetchw [r3, 64] ;Prefetch the next write location
+-#else
+- prealloc [r3, 64]
+-#endif
++ PREALLOC_INSTR r3, 64 ; alloc next line w/o fetching
++
+ #ifdef CONFIG_ARC_HAS_LL64
+ std.ab r4, [r3, 8]
+ std.ab r4, [r3, 8]
+@@ -85,7 +110,6 @@ ENTRY_CFI(memset)
+ lsr.f lp_count, r2, 5 ;Last remaining max 124 bytes
+ lpnz .Lset32bytes
+ ;; LOOP START
+- prefetchw [r3, 32] ;Prefetch the next write location
+ #ifdef CONFIG_ARC_HAS_LL64
+ std.ab r4, [r3, 8]
+ std.ab r4, [r3, 8]
+diff --git a/arch/arc/mm/init.c b/arch/arc/mm/init.c
+index f8fe5668b30f..a56e6a8ed259 100644
+--- a/arch/arc/mm/init.c
++++ b/arch/arc/mm/init.c
+@@ -137,7 +137,8 @@ void __init setup_arch_memory(void)
+ */
+
+ memblock_add_node(low_mem_start, low_mem_sz, 0);
+- memblock_reserve(low_mem_start, __pa(_end) - low_mem_start);
++ memblock_reserve(CONFIG_LINUX_LINK_BASE,
++ __pa(_end) - CONFIG_LINUX_LINK_BASE);
+
+ #ifdef CONFIG_BLK_DEV_INITRD
+ if (initrd_start)
+diff --git a/arch/arm/mm/proc-macros.S b/arch/arm/mm/proc-macros.S
+index 19516fbc2c55..5461d589a1e2 100644
+--- a/arch/arm/mm/proc-macros.S
++++ b/arch/arm/mm/proc-macros.S
+@@ -278,7 +278,7 @@
+ * If we are building for big.Little with branch predictor hardening,
+ * we need the processor function tables to remain available after boot.
+ */
+-#if 1 // defined(CONFIG_BIG_LITTLE) && defined(CONFIG_HARDEN_BRANCH_PREDICTOR)
++#if defined(CONFIG_BIG_LITTLE) && defined(CONFIG_HARDEN_BRANCH_PREDICTOR)
+ .section ".rodata"
+ #endif
+ .type \name\()_processor_functions, #object
+@@ -316,7 +316,7 @@ ENTRY(\name\()_processor_functions)
+ .endif
+
+ .size \name\()_processor_functions, . - \name\()_processor_functions
+-#if 1 // defined(CONFIG_BIG_LITTLE) && defined(CONFIG_HARDEN_BRANCH_PREDICTOR)
++#if defined(CONFIG_BIG_LITTLE) && defined(CONFIG_HARDEN_BRANCH_PREDICTOR)
+ .previous
+ #endif
+ .endm
+diff --git a/arch/s390/include/asm/mmu_context.h b/arch/s390/include/asm/mmu_context.h
+index ccbb53e22024..8d04e6f3f796 100644
+--- a/arch/s390/include/asm/mmu_context.h
++++ b/arch/s390/include/asm/mmu_context.h
+@@ -25,7 +25,7 @@ static inline int init_new_context(struct task_struct *tsk,
+ atomic_set(&mm->context.flush_count, 0);
+ mm->context.gmap_asce = 0;
+ mm->context.flush_mm = 0;
+- mm->context.compat_mm = 0;
++ mm->context.compat_mm = test_thread_flag(TIF_31BIT);
+ #ifdef CONFIG_PGSTE
+ mm->context.alloc_pgste = page_table_allocate_pgste ||
+ test_thread_flag(TIF_PGSTE) ||
+@@ -90,8 +90,6 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
+ {
+ int cpu = smp_processor_id();
+
+- if (prev == next)
+- return;
+ S390_lowcore.user_asce = next->context.asce;
+ cpumask_set_cpu(cpu, &next->context.cpu_attach_mask);
+ /* Clear previous user-ASCE from CR1 and CR7 */
+@@ -103,7 +101,8 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
+ __ctl_load(S390_lowcore.vdso_asce, 7, 7);
+ clear_cpu_flag(CIF_ASCE_SECONDARY);
+ }
+- cpumask_clear_cpu(cpu, &prev->context.cpu_attach_mask);
++ if (prev != next)
++ cpumask_clear_cpu(cpu, &prev->context.cpu_attach_mask);
+ }
+
+ #define finish_arch_post_lock_switch finish_arch_post_lock_switch
+diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c
+index af5c2b3f7065..a8c7789b246b 100644
+--- a/arch/s390/kernel/early.c
++++ b/arch/s390/kernel/early.c
+@@ -63,10 +63,10 @@ static noinline __init void detect_machine_type(void)
+ if (stsi(vmms, 3, 2, 2) || !vmms->count)
+ return;
+
+- /* Running under KVM? If not we assume z/VM */
++ /* Detect known hypervisors */
+ if (!memcmp(vmms->vm[0].cpi, "\xd2\xe5\xd4", 3))
+ S390_lowcore.machine_flags |= MACHINE_FLAG_KVM;
+- else
++ else if (!memcmp(vmms->vm[0].cpi, "\xa9\x61\xe5\xd4", 4))
+ S390_lowcore.machine_flags |= MACHINE_FLAG_VM;
+ }
+
+diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
+index 72dd23ef771b..7ed90a759135 100644
+--- a/arch/s390/kernel/setup.c
++++ b/arch/s390/kernel/setup.c
+@@ -1006,6 +1006,8 @@ void __init setup_arch(char **cmdline_p)
+ pr_info("Linux is running under KVM in 64-bit mode\n");
+ else if (MACHINE_IS_LPAR)
+ pr_info("Linux is running natively in 64-bit mode\n");
++ else
++ pr_info("Linux is running as a guest in 64-bit mode\n");
+
+ /* Have one command line that is parsed and saved in /proc/cmdline */
+ /* boot_command_line has been already set up in early.c */
+diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
+index f82b3d3c36e2..b198ece2aad6 100644
+--- a/arch/s390/kernel/smp.c
++++ b/arch/s390/kernel/smp.c
+@@ -381,8 +381,13 @@ void smp_call_online_cpu(void (*func)(void *), void *data)
+ */
+ void smp_call_ipl_cpu(void (*func)(void *), void *data)
+ {
++ struct lowcore *lc = pcpu_devices->lowcore;
++
++ if (pcpu_devices[0].address == stap())
++ lc = &S390_lowcore;
++
+ pcpu_delegate(&pcpu_devices[0], func, data,
+- pcpu_devices->lowcore->nodat_stack);
++ lc->nodat_stack);
+ }
+
+ int smp_find_processor_id(u16 address)
+@@ -1166,7 +1171,11 @@ static ssize_t __ref rescan_store(struct device *dev,
+ {
+ int rc;
+
++ rc = lock_device_hotplug_sysfs();
++ if (rc)
++ return rc;
+ rc = smp_rescan_cpus();
++ unlock_device_hotplug();
+ return rc ? rc : count;
+ }
+ static DEVICE_ATTR_WO(rescan);
+diff --git a/arch/s390/kernel/vdso.c b/arch/s390/kernel/vdso.c
+index ebe748a9f472..4ff354887db4 100644
+--- a/arch/s390/kernel/vdso.c
++++ b/arch/s390/kernel/vdso.c
+@@ -224,10 +224,9 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
+
+ vdso_pages = vdso64_pages;
+ #ifdef CONFIG_COMPAT
+- if (is_compat_task()) {
++ mm->context.compat_mm = is_compat_task();
++ if (mm->context.compat_mm)
+ vdso_pages = vdso32_pages;
+- mm->context.compat_mm = 1;
+- }
+ #endif
+ /*
+ * vDSO has a problem and was disabled, just don't "enable" it for
+diff --git a/arch/x86/entry/entry_64_compat.S b/arch/x86/entry/entry_64_compat.S
+index 8eaf8952c408..39913770a44d 100644
+--- a/arch/x86/entry/entry_64_compat.S
++++ b/arch/x86/entry/entry_64_compat.S
+@@ -361,7 +361,8 @@ ENTRY(entry_INT80_compat)
+
+ /* Need to switch before accessing the thread stack. */
+ SWITCH_TO_KERNEL_CR3 scratch_reg=%rdi
+- movq %rsp, %rdi
++ /* In the Xen PV case we already run on the thread stack. */
++ ALTERNATIVE "movq %rsp, %rdi", "jmp .Lint80_keep_stack", X86_FEATURE_XENPV
+ movq PER_CPU_VAR(cpu_current_top_of_stack), %rsp
+
+ pushq 6*8(%rdi) /* regs->ss */
+@@ -370,8 +371,9 @@ ENTRY(entry_INT80_compat)
+ pushq 3*8(%rdi) /* regs->cs */
+ pushq 2*8(%rdi) /* regs->ip */
+ pushq 1*8(%rdi) /* regs->orig_ax */
+-
+ pushq (%rdi) /* pt_regs->di */
++.Lint80_keep_stack:
++
+ pushq %rsi /* pt_regs->si */
+ xorl %esi, %esi /* nospec si */
+ pushq %rdx /* pt_regs->dx */
+diff --git a/arch/x86/include/asm/mmu_context.h b/arch/x86/include/asm/mmu_context.h
+index 0ca50611e8ce..19d18fae6ec6 100644
+--- a/arch/x86/include/asm/mmu_context.h
++++ b/arch/x86/include/asm/mmu_context.h
+@@ -178,6 +178,10 @@ static inline void switch_ldt(struct mm_struct *prev, struct mm_struct *next)
+
+ void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk);
+
++/*
++ * Init a new mm. Used on mm copies, like at fork()
++ * and on mm's that are brand-new, like at execve().
++ */
+ static inline int init_new_context(struct task_struct *tsk,
+ struct mm_struct *mm)
+ {
+@@ -228,8 +232,22 @@ do { \
+ } while (0)
+ #endif
+
++static inline void arch_dup_pkeys(struct mm_struct *oldmm,
++ struct mm_struct *mm)
++{
++#ifdef CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS
++ if (!cpu_feature_enabled(X86_FEATURE_OSPKE))
++ return;
++
++ /* Duplicate the oldmm pkey state in mm: */
++ mm->context.pkey_allocation_map = oldmm->context.pkey_allocation_map;
++ mm->context.execute_only_pkey = oldmm->context.execute_only_pkey;
++#endif
++}
++
+ static inline int arch_dup_mmap(struct mm_struct *oldmm, struct mm_struct *mm)
+ {
++ arch_dup_pkeys(oldmm, mm);
+ paravirt_arch_dup_mmap(oldmm, mm);
+ return ldt_dup_context(oldmm, mm);
+ }
+diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c
+index ba4bfb7f6a36..5c93a65ee1e5 100644
+--- a/arch/x86/kernel/kvm.c
++++ b/arch/x86/kernel/kvm.c
+@@ -457,6 +457,7 @@ static void __send_ipi_mask(const struct cpumask *mask, int vector)
+ #else
+ u64 ipi_bitmap = 0;
+ #endif
++ long ret;
+
+ if (cpumask_empty(mask))
+ return;
+@@ -482,8 +483,9 @@ static void __send_ipi_mask(const struct cpumask *mask, int vector)
+ } else if (apic_id < min + KVM_IPI_CLUSTER_SIZE) {
+ max = apic_id < max ? max : apic_id;
+ } else {
+- kvm_hypercall4(KVM_HC_SEND_IPI, (unsigned long)ipi_bitmap,
++ ret = kvm_hypercall4(KVM_HC_SEND_IPI, (unsigned long)ipi_bitmap,
+ (unsigned long)(ipi_bitmap >> BITS_PER_LONG), min, icr);
++ WARN_ONCE(ret < 0, "KVM: failed to send PV IPI: %ld", ret);
+ min = max = apic_id;
+ ipi_bitmap = 0;
+ }
+@@ -491,8 +493,9 @@ static void __send_ipi_mask(const struct cpumask *mask, int vector)
+ }
+
+ if (ipi_bitmap) {
+- kvm_hypercall4(KVM_HC_SEND_IPI, (unsigned long)ipi_bitmap,
++ ret = kvm_hypercall4(KVM_HC_SEND_IPI, (unsigned long)ipi_bitmap,
+ (unsigned long)(ipi_bitmap >> BITS_PER_LONG), min, icr);
++ WARN_ONCE(ret < 0, "KVM: failed to send PV IPI: %ld", ret);
+ }
+
+ local_irq_restore(flags);
+diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
+index 95784bc4a53c..5a2c87552122 100644
+--- a/arch/x86/kvm/vmx.c
++++ b/arch/x86/kvm/vmx.c
+@@ -8315,11 +8315,11 @@ static int enter_vmx_operation(struct kvm_vcpu *vcpu)
+ if (r < 0)
+ goto out_vmcs02;
+
+- vmx->nested.cached_vmcs12 = kmalloc(VMCS12_SIZE, GFP_KERNEL);
++ vmx->nested.cached_vmcs12 = kzalloc(VMCS12_SIZE, GFP_KERNEL);
+ if (!vmx->nested.cached_vmcs12)
+ goto out_cached_vmcs12;
+
+- vmx->nested.cached_shadow_vmcs12 = kmalloc(VMCS12_SIZE, GFP_KERNEL);
++ vmx->nested.cached_shadow_vmcs12 = kzalloc(VMCS12_SIZE, GFP_KERNEL);
+ if (!vmx->nested.cached_shadow_vmcs12)
+ goto out_cached_shadow_vmcs12;
+
+@@ -14853,13 +14853,17 @@ static int vmx_get_nested_state(struct kvm_vcpu *vcpu,
+ copy_shadow_to_vmcs12(vmx);
+ }
+
+- if (copy_to_user(user_kvm_nested_state->data, vmcs12, sizeof(*vmcs12)))
++ /*
++ * Copy over the full allocated size of vmcs12 rather than just the size
++ * of the struct.
++ */
++ if (copy_to_user(user_kvm_nested_state->data, vmcs12, VMCS12_SIZE))
+ return -EFAULT;
+
+ if (nested_cpu_has_shadow_vmcs(vmcs12) &&
+ vmcs12->vmcs_link_pointer != -1ull) {
+ if (copy_to_user(user_kvm_nested_state->data + VMCS12_SIZE,
+- get_shadow_vmcs12(vcpu), sizeof(*vmcs12)))
++ get_shadow_vmcs12(vcpu), VMCS12_SIZE))
+ return -EFAULT;
+ }
+
+diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
+index f049ecfac7bb..4247cb230bd3 100644
+--- a/arch/x86/kvm/x86.c
++++ b/arch/x86/kvm/x86.c
+@@ -6407,8 +6407,7 @@ restart:
+ toggle_interruptibility(vcpu, ctxt->interruptibility);
+ vcpu->arch.emulate_regs_need_sync_to_vcpu = false;
+ kvm_rip_write(vcpu, ctxt->eip);
+- if (r == EMULATE_DONE &&
+- (ctxt->tf || (vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP)))
++ if (r == EMULATE_DONE && ctxt->tf)
+ kvm_vcpu_do_singlestep(vcpu, &r);
+ if (!ctxt->have_exception ||
+ exception_type(ctxt->exception.vector) == EXCPT_TRAP)
+@@ -6998,10 +6997,10 @@ int kvm_emulate_hypercall(struct kvm_vcpu *vcpu)
+ case KVM_HC_CLOCK_PAIRING:
+ ret = kvm_pv_clock_pairing(vcpu, a0, a1);
+ break;
++#endif
+ case KVM_HC_SEND_IPI:
+ ret = kvm_pv_send_ipi(vcpu->kvm, a0, a1, a2, a3, op_64_bit);
+ break;
+-#endif
+ default:
+ ret = -KVM_ENOSYS;
+ break;
+diff --git a/arch/x86/lib/kaslr.c b/arch/x86/lib/kaslr.c
+index 79778ab200e4..a53665116458 100644
+--- a/arch/x86/lib/kaslr.c
++++ b/arch/x86/lib/kaslr.c
+@@ -36,8 +36,8 @@ static inline u16 i8254(void)
+ u16 status, timer;
+
+ do {
+- outb(I8254_PORT_CONTROL,
+- I8254_CMD_READBACK | I8254_SELECT_COUNTER0);
++ outb(I8254_CMD_READBACK | I8254_SELECT_COUNTER0,
++ I8254_PORT_CONTROL);
+ status = inb(I8254_PORT_COUNTER0);
+ timer = inb(I8254_PORT_COUNTER0);
+ timer |= inb(I8254_PORT_COUNTER0) << 8;
+diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c
+index 5912d30020c7..8535e7999769 100644
+--- a/drivers/acpi/nfit/core.c
++++ b/drivers/acpi/nfit/core.c
+@@ -394,6 +394,32 @@ static u8 nfit_dsm_revid(unsigned family, unsigned func)
+ return id;
+ }
+
++static int cmd_to_func(struct nfit_mem *nfit_mem, unsigned int cmd,
++ struct nd_cmd_pkg *call_pkg)
++{
++ if (call_pkg) {
++ int i;
++
++ if (nfit_mem->family != call_pkg->nd_family)
++ return -ENOTTY;
++
++ for (i = 0; i < ARRAY_SIZE(call_pkg->nd_reserved2); i++)
++ if (call_pkg->nd_reserved2[i])
++ return -EINVAL;
++ return call_pkg->nd_command;
++ }
++
++ /* Linux ND commands == NVDIMM_FAMILY_INTEL function numbers */
++ if (nfit_mem->family == NVDIMM_FAMILY_INTEL)
++ return cmd;
++
++ /*
++ * Force function number validation to fail since 0 is never
++ * published as a valid function in dsm_mask.
++ */
++ return 0;
++}
++
+ int acpi_nfit_ctl(struct nvdimm_bus_descriptor *nd_desc, struct nvdimm *nvdimm,
+ unsigned int cmd, void *buf, unsigned int buf_len, int *cmd_rc)
+ {
+@@ -407,30 +433,23 @@ int acpi_nfit_ctl(struct nvdimm_bus_descriptor *nd_desc, struct nvdimm *nvdimm,
+ unsigned long cmd_mask, dsm_mask;
+ u32 offset, fw_status = 0;
+ acpi_handle handle;
+- unsigned int func;
+ const guid_t *guid;
+- int rc, i;
++ int func, rc, i;
+
+ if (cmd_rc)
+ *cmd_rc = -EINVAL;
+- func = cmd;
+- if (cmd == ND_CMD_CALL) {
+- call_pkg = buf;
+- func = call_pkg->nd_command;
+-
+- for (i = 0; i < ARRAY_SIZE(call_pkg->nd_reserved2); i++)
+- if (call_pkg->nd_reserved2[i])
+- return -EINVAL;
+- }
+
+ if (nvdimm) {
+ struct acpi_device *adev = nfit_mem->adev;
+
+ if (!adev)
+ return -ENOTTY;
+- if (call_pkg && nfit_mem->family != call_pkg->nd_family)
+- return -ENOTTY;
+
++ if (cmd == ND_CMD_CALL)
++ call_pkg = buf;
++ func = cmd_to_func(nfit_mem, cmd, call_pkg);
++ if (func < 0)
++ return func;
+ dimm_name = nvdimm_name(nvdimm);
+ cmd_name = nvdimm_cmd_name(cmd);
+ cmd_mask = nvdimm_cmd_mask(nvdimm);
+@@ -441,6 +460,7 @@ int acpi_nfit_ctl(struct nvdimm_bus_descriptor *nd_desc, struct nvdimm *nvdimm,
+ } else {
+ struct acpi_device *adev = to_acpi_dev(acpi_desc);
+
++ func = cmd;
+ cmd_name = nvdimm_bus_cmd_name(cmd);
+ cmd_mask = nd_desc->cmd_mask;
+ dsm_mask = cmd_mask;
+@@ -455,7 +475,13 @@ int acpi_nfit_ctl(struct nvdimm_bus_descriptor *nd_desc, struct nvdimm *nvdimm,
+ if (!desc || (cmd && (desc->out_num + desc->in_num == 0)))
+ return -ENOTTY;
+
+- if (!test_bit(cmd, &cmd_mask) || !test_bit(func, &dsm_mask))
++ /*
++ * Check for a valid command. For ND_CMD_CALL, we also have to
++ * make sure that the DSM function is supported.
++ */
++ if (cmd == ND_CMD_CALL && !test_bit(func, &dsm_mask))
++ return -ENOTTY;
++ else if (!test_bit(cmd, &cmd_mask))
+ return -ENOTTY;
+
+ in_obj.type = ACPI_TYPE_PACKAGE;
+@@ -1844,6 +1870,13 @@ static int acpi_nfit_add_dimm(struct acpi_nfit_desc *acpi_desc,
+ return 0;
+ }
+
++ /*
++ * Function 0 is the command interrogation function, don't
++ * export it to potential userspace use, and enable it to be
++ * used as an error value in acpi_nfit_ctl().
++ */
++ dsm_mask &= ~1UL;
++
+ guid = to_nfit_uuid(nfit_mem->family);
+ for_each_set_bit(i, &dsm_mask, BITS_PER_LONG)
+ if (acpi_check_dsm(adev_dimm->handle, guid,
+diff --git a/drivers/char/mwave/mwavedd.c b/drivers/char/mwave/mwavedd.c
+index b5e3103c1175..e43c876a9223 100644
+--- a/drivers/char/mwave/mwavedd.c
++++ b/drivers/char/mwave/mwavedd.c
+@@ -59,6 +59,7 @@
+ #include <linux/mutex.h>
+ #include <linux/delay.h>
+ #include <linux/serial_8250.h>
++#include <linux/nospec.h>
+ #include "smapi.h"
+ #include "mwavedd.h"
+ #include "3780i.h"
+@@ -289,6 +290,8 @@ static long mwave_ioctl(struct file *file, unsigned int iocmd,
+ ipcnum);
+ return -EINVAL;
+ }
++ ipcnum = array_index_nospec(ipcnum,
++ ARRAY_SIZE(pDrvData->IPCs));
+ PRINTK_3(TRACE_MWAVE,
+ "mwavedd::mwave_ioctl IOCTL_MW_REGISTER_IPC"
+ " ipcnum %x entry usIntCount %x\n",
+@@ -317,6 +320,8 @@ static long mwave_ioctl(struct file *file, unsigned int iocmd,
+ " Invalid ipcnum %x\n", ipcnum);
+ return -EINVAL;
+ }
++ ipcnum = array_index_nospec(ipcnum,
++ ARRAY_SIZE(pDrvData->IPCs));
+ PRINTK_3(TRACE_MWAVE,
+ "mwavedd::mwave_ioctl IOCTL_MW_GET_IPC"
+ " ipcnum %x, usIntCount %x\n",
+@@ -383,6 +388,8 @@ static long mwave_ioctl(struct file *file, unsigned int iocmd,
+ ipcnum);
+ return -EINVAL;
+ }
++ ipcnum = array_index_nospec(ipcnum,
++ ARRAY_SIZE(pDrvData->IPCs));
+ mutex_lock(&mwave_mutex);
+ if (pDrvData->IPCs[ipcnum].bIsEnabled == true) {
+ pDrvData->IPCs[ipcnum].bIsEnabled = false;
+diff --git a/drivers/clk/socfpga/clk-pll-s10.c b/drivers/clk/socfpga/clk-pll-s10.c
+index 2d5d8b43727e..c4d0b6f6abf2 100644
+--- a/drivers/clk/socfpga/clk-pll-s10.c
++++ b/drivers/clk/socfpga/clk-pll-s10.c
+@@ -43,7 +43,7 @@ static unsigned long clk_pll_recalc_rate(struct clk_hw *hwclk,
+ /* Read mdiv and fdiv from the fdbck register */
+ reg = readl(socfpgaclk->hw.reg + 0x4);
+ mdiv = (reg & SOCFPGA_PLL_MDIV_MASK) >> SOCFPGA_PLL_MDIV_SHIFT;
+- vco_freq = (unsigned long long)parent_rate * (mdiv + 6);
++ vco_freq = (unsigned long long)vco_freq * (mdiv + 6);
+
+ return (unsigned long)vco_freq;
+ }
+diff --git a/drivers/clk/socfpga/clk-s10.c b/drivers/clk/socfpga/clk-s10.c
+index 5b238fc314ac..8281dfbf38c2 100644
+--- a/drivers/clk/socfpga/clk-s10.c
++++ b/drivers/clk/socfpga/clk-s10.c
+@@ -12,17 +12,17 @@
+
+ #include "stratix10-clk.h"
+
+-static const char * const pll_mux[] = { "osc1", "cb_intosc_hs_div2_clk",
+- "f2s_free_clk",};
++static const char * const pll_mux[] = { "osc1", "cb-intosc-hs-div2-clk",
++ "f2s-free-clk",};
+ static const char * const cntr_mux[] = { "main_pll", "periph_pll",
+- "osc1", "cb_intosc_hs_div2_clk",
+- "f2s_free_clk"};
+-static const char * const boot_mux[] = { "osc1", "cb_intosc_hs_div2_clk",};
++ "osc1", "cb-intosc-hs-div2-clk",
++ "f2s-free-clk"};
++static const char * const boot_mux[] = { "osc1", "cb-intosc-hs-div2-clk",};
+
+ static const char * const noc_free_mux[] = {"main_noc_base_clk",
+ "peri_noc_base_clk",
+- "osc1", "cb_intosc_hs_div2_clk",
+- "f2s_free_clk"};
++ "osc1", "cb-intosc-hs-div2-clk",
++ "f2s-free-clk"};
+
+ static const char * const emaca_free_mux[] = {"peri_emaca_clk", "boot_clk"};
+ static const char * const emacb_free_mux[] = {"peri_emacb_clk", "boot_clk"};
+@@ -33,14 +33,14 @@ static const char * const s2f_usr1_free_mux[] = {"peri_s2f_usr1_clk", "boot_clk"
+ static const char * const psi_ref_free_mux[] = {"peri_psi_ref_clk", "boot_clk"};
+ static const char * const mpu_mux[] = { "mpu_free_clk", "boot_clk",};
+
+-static const char * const s2f_usr0_mux[] = {"f2s_free_clk", "boot_clk"};
++static const char * const s2f_usr0_mux[] = {"f2s-free-clk", "boot_clk"};
+ static const char * const emac_mux[] = {"emaca_free_clk", "emacb_free_clk"};
+ static const char * const noc_mux[] = {"noc_free_clk", "boot_clk"};
+
+ static const char * const mpu_free_mux[] = {"main_mpu_base_clk",
+ "peri_mpu_base_clk",
+- "osc1", "cb_intosc_hs_div2_clk",
+- "f2s_free_clk"};
++ "osc1", "cb-intosc-hs-div2-clk",
++ "f2s-free-clk"};
+
+ /* clocks in AO (always on) controller */
+ static const struct stratix10_pll_clock s10_pll_clks[] = {
+diff --git a/drivers/clk/zynqmp/clkc.c b/drivers/clk/zynqmp/clkc.c
+index f65cc0ff76ab..b0908ec62f73 100644
+--- a/drivers/clk/zynqmp/clkc.c
++++ b/drivers/clk/zynqmp/clkc.c
+@@ -669,8 +669,8 @@ static int zynqmp_clk_setup(struct device_node *np)
+ if (ret)
+ return ret;
+
+- zynqmp_data = kzalloc(sizeof(*zynqmp_data) + sizeof(*zynqmp_data) *
+- clock_max_idx, GFP_KERNEL);
++ zynqmp_data = kzalloc(struct_size(zynqmp_data, hws, clock_max_idx),
++ GFP_KERNEL);
+ if (!zynqmp_data)
+ return -ENOMEM;
+
+diff --git a/drivers/edac/altera_edac.h b/drivers/edac/altera_edac.h
+index 4213cb0bb2a7..f8664bac9fa8 100644
+--- a/drivers/edac/altera_edac.h
++++ b/drivers/edac/altera_edac.h
+@@ -295,8 +295,8 @@ struct altr_sdram_mc_data {
+ #define S10_SYSMGR_ECC_INTSTAT_DERR_OFST 0xA0
+
+ /* Sticky registers for Uncorrected Errors */
+-#define S10_SYSMGR_UE_VAL_OFST 0x120
+-#define S10_SYSMGR_UE_ADDR_OFST 0x124
++#define S10_SYSMGR_UE_VAL_OFST 0x220
++#define S10_SYSMGR_UE_ADDR_OFST 0x224
+
+ #define S10_DDR0_IRQ_MASK BIT(16)
+
+diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c
+index a028661d9e20..92b11de19581 100644
+--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c
++++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c
+@@ -576,6 +576,7 @@ static const struct amdgpu_px_quirk amdgpu_px_quirk_list[] = {
+ { 0x1002, 0x6900, 0x1028, 0x0812, AMDGPU_PX_QUIRK_FORCE_ATPX },
+ { 0x1002, 0x6900, 0x1028, 0x0813, AMDGPU_PX_QUIRK_FORCE_ATPX },
+ { 0x1002, 0x6900, 0x1025, 0x125A, AMDGPU_PX_QUIRK_FORCE_ATPX },
++ { 0x1002, 0x6900, 0x17AA, 0x3806, AMDGPU_PX_QUIRK_FORCE_ATPX },
+ { 0, 0, 0, 0, 0 },
+ };
+
+diff --git a/drivers/gpu/drm/meson/meson_crtc.c b/drivers/gpu/drm/meson/meson_crtc.c
+index 191b314f9e9e..709475d5cc30 100644
+--- a/drivers/gpu/drm/meson/meson_crtc.c
++++ b/drivers/gpu/drm/meson/meson_crtc.c
+@@ -45,7 +45,6 @@ struct meson_crtc {
+ struct drm_crtc base;
+ struct drm_pending_vblank_event *event;
+ struct meson_drm *priv;
+- bool enabled;
+ };
+ #define to_meson_crtc(x) container_of(x, struct meson_crtc, base)
+
+@@ -81,7 +80,8 @@ static const struct drm_crtc_funcs meson_crtc_funcs = {
+
+ };
+
+-static void meson_crtc_enable(struct drm_crtc *crtc)
++static void meson_crtc_atomic_enable(struct drm_crtc *crtc,
++ struct drm_crtc_state *old_state)
+ {
+ struct meson_crtc *meson_crtc = to_meson_crtc(crtc);
+ struct drm_crtc_state *crtc_state = crtc->state;
+@@ -103,20 +103,6 @@ static void meson_crtc_enable(struct drm_crtc *crtc)
+
+ drm_crtc_vblank_on(crtc);
+
+- meson_crtc->enabled = true;
+-}
+-
+-static void meson_crtc_atomic_enable(struct drm_crtc *crtc,
+- struct drm_crtc_state *old_state)
+-{
+- struct meson_crtc *meson_crtc = to_meson_crtc(crtc);
+- struct meson_drm *priv = meson_crtc->priv;
+-
+- DRM_DEBUG_DRIVER("\n");
+-
+- if (!meson_crtc->enabled)
+- meson_crtc_enable(crtc);
+-
+ priv->viu.osd1_enabled = true;
+ }
+
+@@ -142,8 +128,6 @@ static void meson_crtc_atomic_disable(struct drm_crtc *crtc,
+
+ crtc->state->event = NULL;
+ }
+-
+- meson_crtc->enabled = false;
+ }
+
+ static void meson_crtc_atomic_begin(struct drm_crtc *crtc,
+@@ -152,9 +136,6 @@ static void meson_crtc_atomic_begin(struct drm_crtc *crtc,
+ struct meson_crtc *meson_crtc = to_meson_crtc(crtc);
+ unsigned long flags;
+
+- if (crtc->state->enable && !meson_crtc->enabled)
+- meson_crtc_enable(crtc);
+-
+ if (crtc->state->event) {
+ WARN_ON(drm_crtc_vblank_get(crtc) != 0);
+
+diff --git a/drivers/gpu/drm/meson/meson_drv.c b/drivers/gpu/drm/meson/meson_drv.c
+index d3443125e661..bf5f294f172f 100644
+--- a/drivers/gpu/drm/meson/meson_drv.c
++++ b/drivers/gpu/drm/meson/meson_drv.c
+@@ -82,6 +82,10 @@ static const struct drm_mode_config_funcs meson_mode_config_funcs = {
+ .fb_create = drm_gem_fb_create,
+ };
+
++static const struct drm_mode_config_helper_funcs meson_mode_config_helpers = {
++ .atomic_commit_tail = drm_atomic_helper_commit_tail_rpm,
++};
++
+ static irqreturn_t meson_irq(int irq, void *arg)
+ {
+ struct drm_device *dev = arg;
+@@ -246,6 +250,7 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
+ drm->mode_config.max_width = 3840;
+ drm->mode_config.max_height = 2160;
+ drm->mode_config.funcs = &meson_mode_config_funcs;
++ drm->mode_config.helper_private = &meson_mode_config_helpers;
+
+ /* Hardware Initialization */
+
+diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c
+index fe00b12e4417..bea4c9850247 100644
+--- a/drivers/hv/channel.c
++++ b/drivers/hv/channel.c
+@@ -701,20 +701,12 @@ static int vmbus_close_internal(struct vmbus_channel *channel)
+ int vmbus_disconnect_ring(struct vmbus_channel *channel)
+ {
+ struct vmbus_channel *cur_channel, *tmp;
+- unsigned long flags;
+- LIST_HEAD(list);
+ int ret;
+
+ if (channel->primary_channel != NULL)
+ return -EINVAL;
+
+- /* Snapshot the list of subchannels */
+- spin_lock_irqsave(&channel->lock, flags);
+- list_splice_init(&channel->sc_list, &list);
+- channel->num_sc = 0;
+- spin_unlock_irqrestore(&channel->lock, flags);
+-
+- list_for_each_entry_safe(cur_channel, tmp, &list, sc_list) {
++ list_for_each_entry_safe(cur_channel, tmp, &channel->sc_list, sc_list) {
+ if (cur_channel->rescind)
+ wait_for_completion(&cur_channel->rescind_event);
+
+diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c
+index edd34c167a9b..d01689079e9b 100644
+--- a/drivers/hv/channel_mgmt.c
++++ b/drivers/hv/channel_mgmt.c
+@@ -405,7 +405,6 @@ void hv_process_channel_removal(struct vmbus_channel *channel)
+ primary_channel = channel->primary_channel;
+ spin_lock_irqsave(&primary_channel->lock, flags);
+ list_del(&channel->sc_list);
+- primary_channel->num_sc--;
+ spin_unlock_irqrestore(&primary_channel->lock, flags);
+ }
+
+@@ -1302,49 +1301,6 @@ cleanup:
+ return ret;
+ }
+
+-/*
+- * Retrieve the (sub) channel on which to send an outgoing request.
+- * When a primary channel has multiple sub-channels, we try to
+- * distribute the load equally amongst all available channels.
+- */
+-struct vmbus_channel *vmbus_get_outgoing_channel(struct vmbus_channel *primary)
+-{
+- struct list_head *cur, *tmp;
+- int cur_cpu;
+- struct vmbus_channel *cur_channel;
+- struct vmbus_channel *outgoing_channel = primary;
+- int next_channel;
+- int i = 1;
+-
+- if (list_empty(&primary->sc_list))
+- return outgoing_channel;
+-
+- next_channel = primary->next_oc++;
+-
+- if (next_channel > (primary->num_sc)) {
+- primary->next_oc = 0;
+- return outgoing_channel;
+- }
+-
+- cur_cpu = hv_cpu_number_to_vp_number(smp_processor_id());
+- list_for_each_safe(cur, tmp, &primary->sc_list) {
+- cur_channel = list_entry(cur, struct vmbus_channel, sc_list);
+- if (cur_channel->state != CHANNEL_OPENED_STATE)
+- continue;
+-
+- if (cur_channel->target_vp == cur_cpu)
+- return cur_channel;
+-
+- if (i == next_channel)
+- return cur_channel;
+-
+- i++;
+- }
+-
+- return outgoing_channel;
+-}
+-EXPORT_SYMBOL_GPL(vmbus_get_outgoing_channel);
+-
+ static void invoke_sc_cb(struct vmbus_channel *primary_channel)
+ {
+ struct list_head *cur, *tmp;
+diff --git a/drivers/hv/hv_balloon.c b/drivers/hv/hv_balloon.c
+index 41631512ae97..7b9fbd84d6df 100644
+--- a/drivers/hv/hv_balloon.c
++++ b/drivers/hv/hv_balloon.c
+@@ -888,12 +888,14 @@ static unsigned long handle_pg_range(unsigned long pg_start,
+ pfn_cnt -= pgs_ol;
+ /*
+ * Check if the corresponding memory block is already
+- * online by checking its last previously backed page.
+- * In case it is we need to bring rest (which was not
+- * backed previously) online too.
++ * online. It is possible to observe struct pages still
++ * being uninitialized here so check section instead.
++ * In case the section is online we need to bring the
++ * rest of pfns (which were not backed previously)
++ * online too.
+ */
+ if (start_pfn > has->start_pfn &&
+- !PageReserved(pfn_to_page(start_pfn - 1)))
++ online_section_nr(pfn_to_section_nr(start_pfn)))
+ hv_bring_pgs_online(has, start_pfn, pgs_ol);
+
+ }
+diff --git a/drivers/hv/ring_buffer.c b/drivers/hv/ring_buffer.c
+index 64d0c85d5161..1f1a55e07733 100644
+--- a/drivers/hv/ring_buffer.c
++++ b/drivers/hv/ring_buffer.c
+@@ -164,26 +164,25 @@ hv_get_ringbuffer_availbytes(const struct hv_ring_buffer_info *rbi,
+ }
+
+ /* Get various debug metrics for the specified ring buffer. */
+-void hv_ringbuffer_get_debuginfo(const struct hv_ring_buffer_info *ring_info,
+- struct hv_ring_buffer_debug_info *debug_info)
++int hv_ringbuffer_get_debuginfo(const struct hv_ring_buffer_info *ring_info,
++ struct hv_ring_buffer_debug_info *debug_info)
+ {
+ u32 bytes_avail_towrite;
+ u32 bytes_avail_toread;
+
+- if (ring_info->ring_buffer) {
+- hv_get_ringbuffer_availbytes(ring_info,
+- &bytes_avail_toread,
+- &bytes_avail_towrite);
+-
+- debug_info->bytes_avail_toread = bytes_avail_toread;
+- debug_info->bytes_avail_towrite = bytes_avail_towrite;
+- debug_info->current_read_index =
+- ring_info->ring_buffer->read_index;
+- debug_info->current_write_index =
+- ring_info->ring_buffer->write_index;
+- debug_info->current_interrupt_mask =
+- ring_info->ring_buffer->interrupt_mask;
+- }
++ if (!ring_info->ring_buffer)
++ return -EINVAL;
++
++ hv_get_ringbuffer_availbytes(ring_info,
++ &bytes_avail_toread,
++ &bytes_avail_towrite);
++ debug_info->bytes_avail_toread = bytes_avail_toread;
++ debug_info->bytes_avail_towrite = bytes_avail_towrite;
++ debug_info->current_read_index = ring_info->ring_buffer->read_index;
++ debug_info->current_write_index = ring_info->ring_buffer->write_index;
++ debug_info->current_interrupt_mask
++ = ring_info->ring_buffer->interrupt_mask;
++ return 0;
+ }
+ EXPORT_SYMBOL_GPL(hv_ringbuffer_get_debuginfo);
+
+diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
+index d0ff65675292..403fee01572c 100644
+--- a/drivers/hv/vmbus_drv.c
++++ b/drivers/hv/vmbus_drv.c
+@@ -313,12 +313,16 @@ static ssize_t out_intr_mask_show(struct device *dev,
+ {
+ struct hv_device *hv_dev = device_to_hv_device(dev);
+ struct hv_ring_buffer_debug_info outbound;
++ int ret;
+
+ if (!hv_dev->channel)
+ return -ENODEV;
+- if (hv_dev->channel->state != CHANNEL_OPENED_STATE)
+- return -EINVAL;
+- hv_ringbuffer_get_debuginfo(&hv_dev->channel->outbound, &outbound);
++
++ ret = hv_ringbuffer_get_debuginfo(&hv_dev->channel->outbound,
++ &outbound);
++ if (ret < 0)
++ return ret;
++
+ return sprintf(buf, "%d\n", outbound.current_interrupt_mask);
+ }
+ static DEVICE_ATTR_RO(out_intr_mask);
+@@ -328,12 +332,15 @@ static ssize_t out_read_index_show(struct device *dev,
+ {
+ struct hv_device *hv_dev = device_to_hv_device(dev);
+ struct hv_ring_buffer_debug_info outbound;
++ int ret;
+
+ if (!hv_dev->channel)
+ return -ENODEV;
+- if (hv_dev->channel->state != CHANNEL_OPENED_STATE)
+- return -EINVAL;
+- hv_ringbuffer_get_debuginfo(&hv_dev->channel->outbound, &outbound);
++
++ ret = hv_ringbuffer_get_debuginfo(&hv_dev->channel->outbound,
++ &outbound);
++ if (ret < 0)
++ return ret;
+ return sprintf(buf, "%d\n", outbound.current_read_index);
+ }
+ static DEVICE_ATTR_RO(out_read_index);
+@@ -344,12 +351,15 @@ static ssize_t out_write_index_show(struct device *dev,
+ {
+ struct hv_device *hv_dev = device_to_hv_device(dev);
+ struct hv_ring_buffer_debug_info outbound;
++ int ret;
+
+ if (!hv_dev->channel)
+ return -ENODEV;
+- if (hv_dev->channel->state != CHANNEL_OPENED_STATE)
+- return -EINVAL;
+- hv_ringbuffer_get_debuginfo(&hv_dev->channel->outbound, &outbound);
++
++ ret = hv_ringbuffer_get_debuginfo(&hv_dev->channel->outbound,
++ &outbound);
++ if (ret < 0)
++ return ret;
+ return sprintf(buf, "%d\n", outbound.current_write_index);
+ }
+ static DEVICE_ATTR_RO(out_write_index);
+@@ -360,12 +370,15 @@ static ssize_t out_read_bytes_avail_show(struct device *dev,
+ {
+ struct hv_device *hv_dev = device_to_hv_device(dev);
+ struct hv_ring_buffer_debug_info outbound;
++ int ret;
+
+ if (!hv_dev->channel)
+ return -ENODEV;
+- if (hv_dev->channel->state != CHANNEL_OPENED_STATE)
+- return -EINVAL;
+- hv_ringbuffer_get_debuginfo(&hv_dev->channel->outbound, &outbound);
++
++ ret = hv_ringbuffer_get_debuginfo(&hv_dev->channel->outbound,
++ &outbound);
++ if (ret < 0)
++ return ret;
+ return sprintf(buf, "%d\n", outbound.bytes_avail_toread);
+ }
+ static DEVICE_ATTR_RO(out_read_bytes_avail);
+@@ -376,12 +389,15 @@ static ssize_t out_write_bytes_avail_show(struct device *dev,
+ {
+ struct hv_device *hv_dev = device_to_hv_device(dev);
+ struct hv_ring_buffer_debug_info outbound;
++ int ret;
+
+ if (!hv_dev->channel)
+ return -ENODEV;
+- if (hv_dev->channel->state != CHANNEL_OPENED_STATE)
+- return -EINVAL;
+- hv_ringbuffer_get_debuginfo(&hv_dev->channel->outbound, &outbound);
++
++ ret = hv_ringbuffer_get_debuginfo(&hv_dev->channel->outbound,
++ &outbound);
++ if (ret < 0)
++ return ret;
+ return sprintf(buf, "%d\n", outbound.bytes_avail_towrite);
+ }
+ static DEVICE_ATTR_RO(out_write_bytes_avail);
+@@ -391,12 +407,15 @@ static ssize_t in_intr_mask_show(struct device *dev,
+ {
+ struct hv_device *hv_dev = device_to_hv_device(dev);
+ struct hv_ring_buffer_debug_info inbound;
++ int ret;
+
+ if (!hv_dev->channel)
+ return -ENODEV;
+- if (hv_dev->channel->state != CHANNEL_OPENED_STATE)
+- return -EINVAL;
+- hv_ringbuffer_get_debuginfo(&hv_dev->channel->inbound, &inbound);
++
++ ret = hv_ringbuffer_get_debuginfo(&hv_dev->channel->inbound, &inbound);
++ if (ret < 0)
++ return ret;
++
+ return sprintf(buf, "%d\n", inbound.current_interrupt_mask);
+ }
+ static DEVICE_ATTR_RO(in_intr_mask);
+@@ -406,12 +425,15 @@ static ssize_t in_read_index_show(struct device *dev,
+ {
+ struct hv_device *hv_dev = device_to_hv_device(dev);
+ struct hv_ring_buffer_debug_info inbound;
++ int ret;
+
+ if (!hv_dev->channel)
+ return -ENODEV;
+- if (hv_dev->channel->state != CHANNEL_OPENED_STATE)
+- return -EINVAL;
+- hv_ringbuffer_get_debuginfo(&hv_dev->channel->inbound, &inbound);
++
++ ret = hv_ringbuffer_get_debuginfo(&hv_dev->channel->inbound, &inbound);
++ if (ret < 0)
++ return ret;
++
+ return sprintf(buf, "%d\n", inbound.current_read_index);
+ }
+ static DEVICE_ATTR_RO(in_read_index);
+@@ -421,12 +443,15 @@ static ssize_t in_write_index_show(struct device *dev,
+ {
+ struct hv_device *hv_dev = device_to_hv_device(dev);
+ struct hv_ring_buffer_debug_info inbound;
++ int ret;
+
+ if (!hv_dev->channel)
+ return -ENODEV;
+- if (hv_dev->channel->state != CHANNEL_OPENED_STATE)
+- return -EINVAL;
+- hv_ringbuffer_get_debuginfo(&hv_dev->channel->inbound, &inbound);
++
++ ret = hv_ringbuffer_get_debuginfo(&hv_dev->channel->inbound, &inbound);
++ if (ret < 0)
++ return ret;
++
+ return sprintf(buf, "%d\n", inbound.current_write_index);
+ }
+ static DEVICE_ATTR_RO(in_write_index);
+@@ -437,12 +462,15 @@ static ssize_t in_read_bytes_avail_show(struct device *dev,
+ {
+ struct hv_device *hv_dev = device_to_hv_device(dev);
+ struct hv_ring_buffer_debug_info inbound;
++ int ret;
+
+ if (!hv_dev->channel)
+ return -ENODEV;
+- if (hv_dev->channel->state != CHANNEL_OPENED_STATE)
+- return -EINVAL;
+- hv_ringbuffer_get_debuginfo(&hv_dev->channel->inbound, &inbound);
++
++ ret = hv_ringbuffer_get_debuginfo(&hv_dev->channel->inbound, &inbound);
++ if (ret < 0)
++ return ret;
++
+ return sprintf(buf, "%d\n", inbound.bytes_avail_toread);
+ }
+ static DEVICE_ATTR_RO(in_read_bytes_avail);
+@@ -453,12 +481,15 @@ static ssize_t in_write_bytes_avail_show(struct device *dev,
+ {
+ struct hv_device *hv_dev = device_to_hv_device(dev);
+ struct hv_ring_buffer_debug_info inbound;
++ int ret;
+
+ if (!hv_dev->channel)
+ return -ENODEV;
+- if (hv_dev->channel->state != CHANNEL_OPENED_STATE)
+- return -EINVAL;
+- hv_ringbuffer_get_debuginfo(&hv_dev->channel->inbound, &inbound);
++
++ ret = hv_ringbuffer_get_debuginfo(&hv_dev->channel->inbound, &inbound);
++ if (ret < 0)
++ return ret;
++
+ return sprintf(buf, "%d\n", inbound.bytes_avail_towrite);
+ }
+ static DEVICE_ATTR_RO(in_write_bytes_avail);
+diff --git a/drivers/ide/ide-proc.c b/drivers/ide/ide-proc.c
+index 4c8c7a620d08..a5dc13576394 100644
+--- a/drivers/ide/ide-proc.c
++++ b/drivers/ide/ide-proc.c
+@@ -544,7 +544,7 @@ void ide_proc_port_register_devices(ide_hwif_t *hwif)
+ drive->proc = proc_mkdir(drive->name, parent);
+ if (drive->proc) {
+ ide_add_proc_entries(drive->proc, generic_drive_entries, drive);
+- proc_create_data("setting", S_IFREG|S_IRUSR|S_IWUSR,
++ proc_create_data("settings", S_IFREG|S_IRUSR|S_IWUSR,
+ drive->proc, &ide_settings_proc_fops,
+ drive);
+ }
+diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c
+index cfc8b94527b9..aa4e431cbcd3 100644
+--- a/drivers/input/joystick/xpad.c
++++ b/drivers/input/joystick/xpad.c
+@@ -252,6 +252,8 @@ static const struct xpad_device {
+ { 0x0f30, 0x0202, "Joytech Advanced Controller", 0, XTYPE_XBOX },
+ { 0x0f30, 0x8888, "BigBen XBMiniPad Controller", 0, XTYPE_XBOX },
+ { 0x102c, 0xff0c, "Joytech Wireless Advanced Controller", 0, XTYPE_XBOX },
++ { 0x1038, 0x1430, "SteelSeries Stratus Duo", 0, XTYPE_XBOX360 },
++ { 0x1038, 0x1431, "SteelSeries Stratus Duo", 0, XTYPE_XBOX360 },
+ { 0x11c9, 0x55f0, "Nacon GC-100XF", 0, XTYPE_XBOX360 },
+ { 0x12ab, 0x0004, "Honey Bee Xbox360 dancepad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360 },
+ { 0x12ab, 0x0301, "PDP AFTERGLOW AX.1", 0, XTYPE_XBOX360 },
+@@ -428,6 +430,7 @@ static const struct usb_device_id xpad_table[] = {
+ XPAD_XBOXONE_VENDOR(0x0e6f), /* 0x0e6f X-Box One controllers */
+ XPAD_XBOX360_VENDOR(0x0f0d), /* Hori Controllers */
+ XPAD_XBOXONE_VENDOR(0x0f0d), /* Hori Controllers */
++ XPAD_XBOX360_VENDOR(0x1038), /* SteelSeries Controllers */
+ XPAD_XBOX360_VENDOR(0x11c9), /* Nacon GC100XF */
+ XPAD_XBOX360_VENDOR(0x12ab), /* X-Box 360 dance pads */
+ XPAD_XBOX360_VENDOR(0x1430), /* RedOctane X-Box 360 controllers */
+diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c
+index 8ec483e8688b..26ec603fe220 100644
+--- a/drivers/input/misc/uinput.c
++++ b/drivers/input/misc/uinput.c
+@@ -39,6 +39,7 @@
+ #include <linux/init.h>
+ #include <linux/fs.h>
+ #include <linux/miscdevice.h>
++#include <linux/overflow.h>
+ #include <linux/input/mt.h>
+ #include "../input-compat.h"
+
+@@ -405,7 +406,7 @@ static int uinput_open(struct inode *inode, struct file *file)
+ static int uinput_validate_absinfo(struct input_dev *dev, unsigned int code,
+ const struct input_absinfo *abs)
+ {
+- int min, max;
++ int min, max, range;
+
+ min = abs->minimum;
+ max = abs->maximum;
+@@ -417,7 +418,7 @@ static int uinput_validate_absinfo(struct input_dev *dev, unsigned int code,
+ return -EINVAL;
+ }
+
+- if (abs->flat > max - min) {
++ if (!check_sub_overflow(max, min, &range) && abs->flat > range) {
+ printk(KERN_DEBUG
+ "%s: abs_flat #%02x out of range: %d (min:%d/max:%d)\n",
+ UINPUT_NAME, code, abs->flat, min, max);
+diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c
+index db20e992a40f..7f2a45445b00 100644
+--- a/drivers/irqchip/irq-gic-v3-its.c
++++ b/drivers/irqchip/irq-gic-v3-its.c
+@@ -2399,13 +2399,14 @@ static void its_free_device(struct its_device *its_dev)
+ kfree(its_dev);
+ }
+
+-static int its_alloc_device_irq(struct its_device *dev, irq_hw_number_t *hwirq)
++static int its_alloc_device_irq(struct its_device *dev, int nvecs, irq_hw_number_t *hwirq)
+ {
+ int idx;
+
+- idx = find_first_zero_bit(dev->event_map.lpi_map,
+- dev->event_map.nr_lpis);
+- if (idx == dev->event_map.nr_lpis)
++ idx = bitmap_find_free_region(dev->event_map.lpi_map,
++ dev->event_map.nr_lpis,
++ get_count_order(nvecs));
++ if (idx < 0)
+ return -ENOSPC;
+
+ *hwirq = dev->event_map.lpi_base + idx;
+@@ -2501,21 +2502,21 @@ static int its_irq_domain_alloc(struct irq_domain *domain, unsigned int virq,
+ int err;
+ int i;
+
+- for (i = 0; i < nr_irqs; i++) {
+- err = its_alloc_device_irq(its_dev, &hwirq);
+- if (err)
+- return err;
++ err = its_alloc_device_irq(its_dev, nr_irqs, &hwirq);
++ if (err)
++ return err;
+
+- err = its_irq_gic_domain_alloc(domain, virq + i, hwirq);
++ for (i = 0; i < nr_irqs; i++) {
++ err = its_irq_gic_domain_alloc(domain, virq + i, hwirq + i);
+ if (err)
+ return err;
+
+ irq_domain_set_hwirq_and_chip(domain, virq + i,
+- hwirq, &its_irq_chip, its_dev);
++ hwirq + i, &its_irq_chip, its_dev);
+ irqd_set_single_target(irq_desc_get_irq_data(irq_to_desc(virq + i)));
+ pr_debug("ID:%d pID:%d vID:%d\n",
+- (int)(hwirq - its_dev->event_map.lpi_base),
+- (int) hwirq, virq + i);
++ (int)(hwirq + i - its_dev->event_map.lpi_base),
++ (int)(hwirq + i), virq + i);
+ }
+
+ return 0;
+diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
+index fc7d8b8a654f..1ef828575fae 100644
+--- a/drivers/md/dm-crypt.c
++++ b/drivers/md/dm-crypt.c
+@@ -2405,9 +2405,21 @@ static int crypt_ctr_cipher_new(struct dm_target *ti, char *cipher_in, char *key
+ * capi:cipher_api_spec-iv:ivopts
+ */
+ tmp = &cipher_in[strlen("capi:")];
+- cipher_api = strsep(&tmp, "-");
+- *ivmode = strsep(&tmp, ":");
+- *ivopts = tmp;
++
++ /* Separate IV options if present, it can contain another '-' in hash name */
++ *ivopts = strrchr(tmp, ':');
++ if (*ivopts) {
++ **ivopts = '\0';
++ (*ivopts)++;
++ }
++ /* Parse IV mode */
++ *ivmode = strrchr(tmp, '-');
++ if (*ivmode) {
++ **ivmode = '\0';
++ (*ivmode)++;
++ }
++ /* The rest is crypto API spec */
++ cipher_api = tmp;
+
+ if (*ivmode && !strcmp(*ivmode, "lmk"))
+ cc->tfms_count = 64;
+@@ -2477,11 +2489,8 @@ static int crypt_ctr_cipher_old(struct dm_target *ti, char *cipher_in, char *key
+ goto bad_mem;
+
+ chainmode = strsep(&tmp, "-");
+- *ivopts = strsep(&tmp, "-");
+- *ivmode = strsep(&*ivopts, ":");
+-
+- if (tmp)
+- DMWARN("Ignoring unexpected additional cipher options");
++ *ivmode = strsep(&tmp, ":");
++ *ivopts = tmp;
+
+ /*
+ * For compatibility with the original dm-crypt mapping format, if
+diff --git a/drivers/md/dm-thin-metadata.c b/drivers/md/dm-thin-metadata.c
+index 20b0776e39ef..ed3caceaed07 100644
+--- a/drivers/md/dm-thin-metadata.c
++++ b/drivers/md/dm-thin-metadata.c
+@@ -1678,7 +1678,7 @@ int dm_thin_remove_range(struct dm_thin_device *td,
+ return r;
+ }
+
+-int dm_pool_block_is_used(struct dm_pool_metadata *pmd, dm_block_t b, bool *result)
++int dm_pool_block_is_shared(struct dm_pool_metadata *pmd, dm_block_t b, bool *result)
+ {
+ int r;
+ uint32_t ref_count;
+@@ -1686,7 +1686,7 @@ int dm_pool_block_is_used(struct dm_pool_metadata *pmd, dm_block_t b, bool *resu
+ down_read(&pmd->root_lock);
+ r = dm_sm_get_count(pmd->data_sm, b, &ref_count);
+ if (!r)
+- *result = (ref_count != 0);
++ *result = (ref_count > 1);
+ up_read(&pmd->root_lock);
+
+ return r;
+diff --git a/drivers/md/dm-thin-metadata.h b/drivers/md/dm-thin-metadata.h
+index 35e954ea20a9..f6be0d733c20 100644
+--- a/drivers/md/dm-thin-metadata.h
++++ b/drivers/md/dm-thin-metadata.h
+@@ -195,7 +195,7 @@ int dm_pool_get_metadata_dev_size(struct dm_pool_metadata *pmd,
+
+ int dm_pool_get_data_dev_size(struct dm_pool_metadata *pmd, dm_block_t *result);
+
+-int dm_pool_block_is_used(struct dm_pool_metadata *pmd, dm_block_t b, bool *result);
++int dm_pool_block_is_shared(struct dm_pool_metadata *pmd, dm_block_t b, bool *result);
+
+ int dm_pool_inc_data_range(struct dm_pool_metadata *pmd, dm_block_t b, dm_block_t e);
+ int dm_pool_dec_data_range(struct dm_pool_metadata *pmd, dm_block_t b, dm_block_t e);
+diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
+index dadd9696340c..ca8af21bf644 100644
+--- a/drivers/md/dm-thin.c
++++ b/drivers/md/dm-thin.c
+@@ -1048,7 +1048,7 @@ static void passdown_double_checking_shared_status(struct dm_thin_new_mapping *m
+ * passdown we have to check that these blocks are now unused.
+ */
+ int r = 0;
+- bool used = true;
++ bool shared = true;
+ struct thin_c *tc = m->tc;
+ struct pool *pool = tc->pool;
+ dm_block_t b = m->data_block, e, end = m->data_block + m->virt_end - m->virt_begin;
+@@ -1058,11 +1058,11 @@ static void passdown_double_checking_shared_status(struct dm_thin_new_mapping *m
+ while (b != end) {
+ /* find start of unmapped run */
+ for (; b < end; b++) {
+- r = dm_pool_block_is_used(pool->pmd, b, &used);
++ r = dm_pool_block_is_shared(pool->pmd, b, &shared);
+ if (r)
+ goto out;
+
+- if (!used)
++ if (!shared)
+ break;
+ }
+
+@@ -1071,11 +1071,11 @@ static void passdown_double_checking_shared_status(struct dm_thin_new_mapping *m
+
+ /* find end of run */
+ for (e = b + 1; e != end; e++) {
+- r = dm_pool_block_is_used(pool->pmd, e, &used);
++ r = dm_pool_block_is_shared(pool->pmd, e, &shared);
+ if (r)
+ goto out;
+
+- if (used)
++ if (shared)
+ break;
+ }
+
+diff --git a/drivers/misc/ibmvmc.c b/drivers/misc/ibmvmc.c
+index b8aaa684c397..2ed23c99f59f 100644
+--- a/drivers/misc/ibmvmc.c
++++ b/drivers/misc/ibmvmc.c
+@@ -820,21 +820,24 @@ static int ibmvmc_send_msg(struct crq_server_adapter *adapter,
+ *
+ * Return:
+ * 0 - Success
++ * Non-zero - Failure
+ */
+ static int ibmvmc_open(struct inode *inode, struct file *file)
+ {
+ struct ibmvmc_file_session *session;
+- int rc = 0;
+
+ pr_debug("%s: inode = 0x%lx, file = 0x%lx, state = 0x%x\n", __func__,
+ (unsigned long)inode, (unsigned long)file,
+ ibmvmc.state);
+
+ session = kzalloc(sizeof(*session), GFP_KERNEL);
++ if (!session)
++ return -ENOMEM;
++
+ session->file = file;
+ file->private_data = session;
+
+- return rc;
++ return 0;
+ }
+
+ /**
+diff --git a/drivers/misc/mei/hw-me-regs.h b/drivers/misc/mei/hw-me-regs.h
+index e4b10b2d1a08..23739a60517f 100644
+--- a/drivers/misc/mei/hw-me-regs.h
++++ b/drivers/misc/mei/hw-me-regs.h
+@@ -127,6 +127,8 @@
+ #define MEI_DEV_ID_BXT_M 0x1A9A /* Broxton M */
+ #define MEI_DEV_ID_APL_I 0x5A9A /* Apollo Lake I */
+
++#define MEI_DEV_ID_DNV_IE 0x19E5 /* Denverton IE */
++
+ #define MEI_DEV_ID_GLK 0x319A /* Gemini Lake */
+
+ #define MEI_DEV_ID_KBP 0xA2BA /* Kaby Point */
+diff --git a/drivers/misc/mei/pci-me.c b/drivers/misc/mei/pci-me.c
+index ea4e152270a3..c8e21c894a5f 100644
+--- a/drivers/misc/mei/pci-me.c
++++ b/drivers/misc/mei/pci-me.c
+@@ -88,11 +88,13 @@ static const struct pci_device_id mei_me_pci_tbl[] = {
+ {MEI_PCI_DEVICE(MEI_DEV_ID_SPT_2, MEI_ME_PCH8_CFG)},
+ {MEI_PCI_DEVICE(MEI_DEV_ID_SPT_H, MEI_ME_PCH8_SPS_CFG)},
+ {MEI_PCI_DEVICE(MEI_DEV_ID_SPT_H_2, MEI_ME_PCH8_SPS_CFG)},
+- {MEI_PCI_DEVICE(MEI_DEV_ID_LBG, MEI_ME_PCH8_CFG)},
++ {MEI_PCI_DEVICE(MEI_DEV_ID_LBG, MEI_ME_PCH12_CFG)},
+
+ {MEI_PCI_DEVICE(MEI_DEV_ID_BXT_M, MEI_ME_PCH8_CFG)},
+ {MEI_PCI_DEVICE(MEI_DEV_ID_APL_I, MEI_ME_PCH8_CFG)},
+
++ {MEI_PCI_DEVICE(MEI_DEV_ID_DNV_IE, MEI_ME_PCH8_CFG)},
++
+ {MEI_PCI_DEVICE(MEI_DEV_ID_GLK, MEI_ME_PCH8_CFG)},
+
+ {MEI_PCI_DEVICE(MEI_DEV_ID_KBP, MEI_ME_PCH8_CFG)},
+diff --git a/drivers/mmc/host/dw_mmc-bluefield.c b/drivers/mmc/host/dw_mmc-bluefield.c
+index 54c3fbb4a391..db56d4f58aaa 100644
+--- a/drivers/mmc/host/dw_mmc-bluefield.c
++++ b/drivers/mmc/host/dw_mmc-bluefield.c
+@@ -1,11 +1,6 @@
+ // SPDX-License-Identifier: GPL-2.0
+ /*
+ * Copyright (C) 2018 Mellanox Technologies.
+- *
+- * This program is free software; you can redistribute it and/or modify
+- * it under the terms of the GNU General Public License as published by
+- * the Free Software Foundation; either version 2 of the License, or
+- * (at your option) any later version.
+ */
+
+ #include <linux/bitfield.h>
+diff --git a/drivers/mmc/host/meson-gx-mmc.c b/drivers/mmc/host/meson-gx-mmc.c
+index c201c378537e..ef9deaa361c7 100644
+--- a/drivers/mmc/host/meson-gx-mmc.c
++++ b/drivers/mmc/host/meson-gx-mmc.c
+@@ -174,6 +174,8 @@ struct meson_host {
+ struct sd_emmc_desc *descs;
+ dma_addr_t descs_dma_addr;
+
++ int irq;
++
+ bool vqmmc_enabled;
+ };
+
+@@ -1181,7 +1183,7 @@ static int meson_mmc_probe(struct platform_device *pdev)
+ struct resource *res;
+ struct meson_host *host;
+ struct mmc_host *mmc;
+- int ret, irq;
++ int ret;
+
+ mmc = mmc_alloc_host(sizeof(struct meson_host), &pdev->dev);
+ if (!mmc)
+@@ -1228,8 +1230,8 @@ static int meson_mmc_probe(struct platform_device *pdev)
+ goto free_host;
+ }
+
+- irq = platform_get_irq(pdev, 0);
+- if (irq <= 0) {
++ host->irq = platform_get_irq(pdev, 0);
++ if (host->irq <= 0) {
+ dev_err(&pdev->dev, "failed to get interrupt resource.\n");
+ ret = -EINVAL;
+ goto free_host;
+@@ -1283,9 +1285,8 @@ static int meson_mmc_probe(struct platform_device *pdev)
+ writel(IRQ_CRC_ERR | IRQ_TIMEOUTS | IRQ_END_OF_CHAIN,
+ host->regs + SD_EMMC_IRQ_EN);
+
+- ret = devm_request_threaded_irq(&pdev->dev, irq, meson_mmc_irq,
+- meson_mmc_irq_thread, IRQF_SHARED,
+- NULL, host);
++ ret = request_threaded_irq(host->irq, meson_mmc_irq,
++ meson_mmc_irq_thread, IRQF_SHARED, NULL, host);
+ if (ret)
+ goto err_init_clk;
+
+@@ -1303,7 +1304,7 @@ static int meson_mmc_probe(struct platform_device *pdev)
+ if (host->bounce_buf == NULL) {
+ dev_err(host->dev, "Unable to map allocate DMA bounce buffer.\n");
+ ret = -ENOMEM;
+- goto err_init_clk;
++ goto err_free_irq;
+ }
+
+ host->descs = dma_alloc_coherent(host->dev, SD_EMMC_DESC_BUF_LEN,
+@@ -1322,6 +1323,8 @@ static int meson_mmc_probe(struct platform_device *pdev)
+ err_bounce_buf:
+ dma_free_coherent(host->dev, host->bounce_buf_size,
+ host->bounce_buf, host->bounce_dma_addr);
++err_free_irq:
++ free_irq(host->irq, host);
+ err_init_clk:
+ clk_disable_unprepare(host->mmc_clk);
+ err_core_clk:
+@@ -1339,6 +1342,7 @@ static int meson_mmc_remove(struct platform_device *pdev)
+
+ /* disable interrupts */
+ writel(0, host->regs + SD_EMMC_IRQ_EN);
++ free_irq(host->irq, host);
+
+ dma_free_coherent(host->dev, SD_EMMC_DESC_BUF_LEN,
+ host->descs, host->descs_dma_addr);
+diff --git a/drivers/mmc/host/sdhci-iproc.c b/drivers/mmc/host/sdhci-iproc.c
+index 0db99057c44f..9d12c06c7fd6 100644
+--- a/drivers/mmc/host/sdhci-iproc.c
++++ b/drivers/mmc/host/sdhci-iproc.c
+@@ -296,7 +296,10 @@ static int sdhci_iproc_probe(struct platform_device *pdev)
+
+ iproc_host->data = iproc_data;
+
+- mmc_of_parse(host->mmc);
++ ret = mmc_of_parse(host->mmc);
++ if (ret)
++ goto err;
++
+ sdhci_get_property(pdev);
+
+ host->mmc->caps |= iproc_host->data->mmc_caps;
+diff --git a/drivers/net/can/dev.c b/drivers/net/can/dev.c
+index 3b3f88ffab53..c05e4d50d43d 100644
+--- a/drivers/net/can/dev.c
++++ b/drivers/net/can/dev.c
+@@ -480,8 +480,6 @@ EXPORT_SYMBOL_GPL(can_put_echo_skb);
+ struct sk_buff *__can_get_echo_skb(struct net_device *dev, unsigned int idx, u8 *len_ptr)
+ {
+ struct can_priv *priv = netdev_priv(dev);
+- struct sk_buff *skb = priv->echo_skb[idx];
+- struct canfd_frame *cf;
+
+ if (idx >= priv->echo_skb_max) {
+ netdev_err(dev, "%s: BUG! Trying to access can_priv::echo_skb out of bounds (%u/max %u)\n",
+@@ -489,20 +487,21 @@ struct sk_buff *__can_get_echo_skb(struct net_device *dev, unsigned int idx, u8
+ return NULL;
+ }
+
+- if (!skb) {
+- netdev_err(dev, "%s: BUG! Trying to echo non existing skb: can_priv::echo_skb[%u]\n",
+- __func__, idx);
+- return NULL;
+- }
++ if (priv->echo_skb[idx]) {
++ /* Using "struct canfd_frame::len" for the frame
++ * length is supported on both CAN and CANFD frames.
++ */
++ struct sk_buff *skb = priv->echo_skb[idx];
++ struct canfd_frame *cf = (struct canfd_frame *)skb->data;
++ u8 len = cf->len;
+
+- /* Using "struct canfd_frame::len" for the frame
+- * length is supported on both CAN and CANFD frames.
+- */
+- cf = (struct canfd_frame *)skb->data;
+- *len_ptr = cf->len;
+- priv->echo_skb[idx] = NULL;
++ *len_ptr = len;
++ priv->echo_skb[idx] = NULL;
+
+- return skb;
++ return skb;
++ }
++
++ return NULL;
+ }
+
+ /*
+diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c
+index 75ce11395ee8..ae219b8a7754 100644
+--- a/drivers/net/can/flexcan.c
++++ b/drivers/net/can/flexcan.c
+@@ -1004,7 +1004,7 @@ static int flexcan_chip_start(struct net_device *dev)
+ }
+ } else {
+ /* clear and invalidate unused mailboxes first */
+- for (i = FLEXCAN_TX_MB_RESERVED_OFF_FIFO; i <= ARRAY_SIZE(regs->mb); i++) {
++ for (i = FLEXCAN_TX_MB_RESERVED_OFF_FIFO; i < ARRAY_SIZE(regs->mb); i++) {
+ priv->write(FLEXCAN_MB_CODE_RX_INACTIVE,
+ &regs->mb[i].can_ctrl);
+ }
+diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-common.h b/drivers/net/ethernet/amd/xgbe/xgbe-common.h
+index d272dc6984ac..b40d4377cc71 100644
+--- a/drivers/net/ethernet/amd/xgbe/xgbe-common.h
++++ b/drivers/net/ethernet/amd/xgbe/xgbe-common.h
+@@ -431,8 +431,6 @@
+ #define MAC_MDIOSCAR_PA_WIDTH 5
+ #define MAC_MDIOSCAR_RA_INDEX 0
+ #define MAC_MDIOSCAR_RA_WIDTH 16
+-#define MAC_MDIOSCAR_REG_INDEX 0
+-#define MAC_MDIOSCAR_REG_WIDTH 21
+ #define MAC_MDIOSCCDR_BUSY_INDEX 22
+ #define MAC_MDIOSCCDR_BUSY_WIDTH 1
+ #define MAC_MDIOSCCDR_CMD_INDEX 16
+diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-dev.c b/drivers/net/ethernet/amd/xgbe/xgbe-dev.c
+index 1e929a1e4ca7..4666084eda16 100644
+--- a/drivers/net/ethernet/amd/xgbe/xgbe-dev.c
++++ b/drivers/net/ethernet/amd/xgbe/xgbe-dev.c
+@@ -1284,6 +1284,20 @@ static void xgbe_write_mmd_regs(struct xgbe_prv_data *pdata, int prtad,
+ }
+ }
+
++static unsigned int xgbe_create_mdio_sca(int port, int reg)
++{
++ unsigned int mdio_sca, da;
++
++ da = (reg & MII_ADDR_C45) ? reg >> 16 : 0;
++
++ mdio_sca = 0;
++ XGMAC_SET_BITS(mdio_sca, MAC_MDIOSCAR, RA, reg);
++ XGMAC_SET_BITS(mdio_sca, MAC_MDIOSCAR, PA, port);
++ XGMAC_SET_BITS(mdio_sca, MAC_MDIOSCAR, DA, da);
++
++ return mdio_sca;
++}
++
+ static int xgbe_write_ext_mii_regs(struct xgbe_prv_data *pdata, int addr,
+ int reg, u16 val)
+ {
+@@ -1291,9 +1305,7 @@ static int xgbe_write_ext_mii_regs(struct xgbe_prv_data *pdata, int addr,
+
+ reinit_completion(&pdata->mdio_complete);
+
+- mdio_sca = 0;
+- XGMAC_SET_BITS(mdio_sca, MAC_MDIOSCAR, REG, reg);
+- XGMAC_SET_BITS(mdio_sca, MAC_MDIOSCAR, DA, addr);
++ mdio_sca = xgbe_create_mdio_sca(addr, reg);
+ XGMAC_IOWRITE(pdata, MAC_MDIOSCAR, mdio_sca);
+
+ mdio_sccd = 0;
+@@ -1317,9 +1329,7 @@ static int xgbe_read_ext_mii_regs(struct xgbe_prv_data *pdata, int addr,
+
+ reinit_completion(&pdata->mdio_complete);
+
+- mdio_sca = 0;
+- XGMAC_SET_BITS(mdio_sca, MAC_MDIOSCAR, REG, reg);
+- XGMAC_SET_BITS(mdio_sca, MAC_MDIOSCAR, DA, addr);
++ mdio_sca = xgbe_create_mdio_sca(addr, reg);
+ XGMAC_IOWRITE(pdata, MAC_MDIOSCAR, mdio_sca);
+
+ mdio_sccd = 0;
+diff --git a/drivers/net/ethernet/mellanox/mlxsw/pci.c b/drivers/net/ethernet/mellanox/mlxsw/pci.c
+index 5890fdfd62c3..c7901a3f2a79 100644
+--- a/drivers/net/ethernet/mellanox/mlxsw/pci.c
++++ b/drivers/net/ethernet/mellanox/mlxsw/pci.c
+@@ -604,29 +604,31 @@ static void mlxsw_pci_cq_tasklet(unsigned long data)
+ u16 wqe_counter = mlxsw_pci_cqe_wqe_counter_get(cqe);
+ u8 sendq = mlxsw_pci_cqe_sr_get(q->u.cq.v, cqe);
+ u8 dqn = mlxsw_pci_cqe_dqn_get(q->u.cq.v, cqe);
++ char ncqe[MLXSW_PCI_CQE_SIZE_MAX];
++
++ memcpy(ncqe, cqe, q->elem_size);
++ mlxsw_pci_queue_doorbell_consumer_ring(mlxsw_pci, q);
+
+ if (sendq) {
+ struct mlxsw_pci_queue *sdq;
+
+ sdq = mlxsw_pci_sdq_get(mlxsw_pci, dqn);
+ mlxsw_pci_cqe_sdq_handle(mlxsw_pci, sdq,
+- wqe_counter, cqe);
++ wqe_counter, ncqe);
+ q->u.cq.comp_sdq_count++;
+ } else {
+ struct mlxsw_pci_queue *rdq;
+
+ rdq = mlxsw_pci_rdq_get(mlxsw_pci, dqn);
+ mlxsw_pci_cqe_rdq_handle(mlxsw_pci, rdq,
+- wqe_counter, q->u.cq.v, cqe);
++ wqe_counter, q->u.cq.v, ncqe);
+ q->u.cq.comp_rdq_count++;
+ }
+ if (++items == credits)
+ break;
+ }
+- if (items) {
+- mlxsw_pci_queue_doorbell_consumer_ring(mlxsw_pci, q);
++ if (items)
+ mlxsw_pci_queue_doorbell_arm_consumer_ring(mlxsw_pci, q);
+- }
+ }
+
+ static u16 mlxsw_pci_cq_elem_count(const struct mlxsw_pci_queue *q)
+diff --git a/drivers/net/ethernet/mellanox/mlxsw/pci_hw.h b/drivers/net/ethernet/mellanox/mlxsw/pci_hw.h
+index bb99f6d41fe0..ffee38e36ce8 100644
+--- a/drivers/net/ethernet/mellanox/mlxsw/pci_hw.h
++++ b/drivers/net/ethernet/mellanox/mlxsw/pci_hw.h
+@@ -27,7 +27,7 @@
+
+ #define MLXSW_PCI_SW_RESET 0xF0010
+ #define MLXSW_PCI_SW_RESET_RST_BIT BIT(0)
+-#define MLXSW_PCI_SW_RESET_TIMEOUT_MSECS 5000
++#define MLXSW_PCI_SW_RESET_TIMEOUT_MSECS 13000
+ #define MLXSW_PCI_SW_RESET_WAIT_MSECS 100
+ #define MLXSW_PCI_FW_READY 0xA1844
+ #define MLXSW_PCI_FW_READY_MASK 0xFFFF
+@@ -53,6 +53,7 @@
+ #define MLXSW_PCI_WQE_SIZE 32 /* 32 bytes per element */
+ #define MLXSW_PCI_CQE01_SIZE 16 /* 16 bytes per element */
+ #define MLXSW_PCI_CQE2_SIZE 32 /* 32 bytes per element */
++#define MLXSW_PCI_CQE_SIZE_MAX MLXSW_PCI_CQE2_SIZE
+ #define MLXSW_PCI_EQE_SIZE 16 /* 16 bytes per element */
+ #define MLXSW_PCI_WQE_COUNT (MLXSW_PCI_AQ_SIZE / MLXSW_PCI_WQE_SIZE)
+ #define MLXSW_PCI_CQE01_COUNT (MLXSW_PCI_AQ_SIZE / MLXSW_PCI_CQE01_SIZE)
+diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_fid.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_fid.c
+index a3db033d7399..b490589ef25c 100644
+--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_fid.c
++++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_fid.c
+@@ -882,8 +882,8 @@ static const struct mlxsw_sp_fid_ops mlxsw_sp_fid_dummy_ops = {
+ static const struct mlxsw_sp_fid_family mlxsw_sp_fid_dummy_family = {
+ .type = MLXSW_SP_FID_TYPE_DUMMY,
+ .fid_size = sizeof(struct mlxsw_sp_fid),
+- .start_index = MLXSW_SP_RFID_BASE - 1,
+- .end_index = MLXSW_SP_RFID_BASE - 1,
++ .start_index = VLAN_N_VID - 1,
++ .end_index = VLAN_N_VID - 1,
+ .ops = &mlxsw_sp_fid_dummy_ops,
+ };
+
+diff --git a/drivers/net/ethernet/sun/cassini.c b/drivers/net/ethernet/sun/cassini.c
+index 9020b084b953..7ec4eb74fe21 100644
+--- a/drivers/net/ethernet/sun/cassini.c
++++ b/drivers/net/ethernet/sun/cassini.c
+@@ -1,22 +1,9 @@
+-// SPDX-License-Identifier: GPL-2.0
++// SPDX-License-Identifier: GPL-2.0+
+ /* cassini.c: Sun Microsystems Cassini(+) ethernet driver.
+ *
+ * Copyright (C) 2004 Sun Microsystems Inc.
+ * Copyright (C) 2003 Adrian Sun (asun@darksunrising.com)
+ *
+- * This program is free software; you can redistribute it and/or
+- * modify it under the terms of the GNU General Public License as
+- * published by the Free Software Foundation; either version 2 of the
+- * License, or (at your option) any later version.
+- *
+- * This program is distributed in the hope that it will be useful,
+- * but WITHOUT ANY WARRANTY; without even the implied warranty of
+- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+- * GNU General Public License for more details.
+- *
+- * You should have received a copy of the GNU General Public License
+- * along with this program; if not, see <http://www.gnu.org/licenses/>.
+- *
+ * This driver uses the sungem driver (c) David Miller
+ * (davem@redhat.com) as its basis.
+ *
+diff --git a/drivers/net/ethernet/sun/cassini.h b/drivers/net/ethernet/sun/cassini.h
+index 13f3860496a8..ae5f05f03f88 100644
+--- a/drivers/net/ethernet/sun/cassini.h
++++ b/drivers/net/ethernet/sun/cassini.h
+@@ -1,23 +1,10 @@
+-/* SPDX-License-Identifier: GPL-2.0 */
++/* SPDX-License-Identifier: GPL-2.0+ */
+ /* $Id: cassini.h,v 1.16 2004/08/17 21:15:16 zaumen Exp $
+ * cassini.h: Definitions for Sun Microsystems Cassini(+) ethernet driver.
+ *
+ * Copyright (C) 2004 Sun Microsystems Inc.
+ * Copyright (c) 2003 Adrian Sun (asun@darksunrising.com)
+ *
+- * This program is free software; you can redistribute it and/or
+- * modify it under the terms of the GNU General Public License as
+- * published by the Free Software Foundation; either version 2 of the
+- * License, or (at your option) any later version.
+- *
+- * This program is distributed in the hope that it will be useful,
+- * but WITHOUT ANY WARRANTY; without even the implied warranty of
+- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+- * GNU General Public License for more details.
+- *
+- * You should have received a copy of the GNU General Public License
+- * along with this program; if not, see <http://www.gnu.org/licenses/>.
+- *
+ * vendor id: 0x108E (Sun Microsystems, Inc.)
+ * device id: 0xabba (Cassini)
+ * revision ids: 0x01 = Cassini
+diff --git a/drivers/net/phy/marvell.c b/drivers/net/phy/marvell.c
+index cbec296107bd..f46da6262abe 100644
+--- a/drivers/net/phy/marvell.c
++++ b/drivers/net/phy/marvell.c
+@@ -1042,6 +1042,39 @@ static int m88e1145_config_init(struct phy_device *phydev)
+ return 0;
+ }
+
++/* The VOD can be out of specification on link up. Poke an
++ * undocumented register, in an undocumented page, with a magic value
++ * to fix this.
++ */
++static int m88e6390_errata(struct phy_device *phydev)
++{
++ int err;
++
++ err = phy_write(phydev, MII_BMCR,
++ BMCR_ANENABLE | BMCR_SPEED1000 | BMCR_FULLDPLX);
++ if (err)
++ return err;
++
++ usleep_range(300, 400);
++
++ err = phy_write_paged(phydev, 0xf8, 0x08, 0x36);
++ if (err)
++ return err;
++
++ return genphy_soft_reset(phydev);
++}
++
++static int m88e6390_config_aneg(struct phy_device *phydev)
++{
++ int err;
++
++ err = m88e6390_errata(phydev);
++ if (err)
++ return err;
++
++ return m88e1510_config_aneg(phydev);
++}
++
+ /**
+ * fiber_lpa_to_ethtool_lpa_t
+ * @lpa: value of the MII_LPA register for fiber link
+@@ -1397,7 +1430,7 @@ static int m88e1318_set_wol(struct phy_device *phydev,
+ * before enabling it if !phy_interrupt_is_valid()
+ */
+ if (!phy_interrupt_is_valid(phydev))
+- phy_read(phydev, MII_M1011_IEVENT);
++ __phy_read(phydev, MII_M1011_IEVENT);
+
+ /* Enable the WOL interrupt */
+ err = __phy_modify(phydev, MII_88E1318S_PHY_CSIER, 0,
+@@ -2292,7 +2325,7 @@ static struct phy_driver marvell_drivers[] = {
+ .flags = PHY_HAS_INTERRUPT,
+ .probe = m88e6390_probe,
+ .config_init = &marvell_config_init,
+- .config_aneg = &m88e1510_config_aneg,
++ .config_aneg = &m88e6390_config_aneg,
+ .read_status = &marvell_read_status,
+ .ack_interrupt = &marvell_ack_interrupt,
+ .config_intr = &marvell_config_intr,
+diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c
+index 2e59a8419b17..66b9cfe692fc 100644
+--- a/drivers/net/phy/mdio_bus.c
++++ b/drivers/net/phy/mdio_bus.c
+@@ -390,6 +390,7 @@ int __mdiobus_register(struct mii_bus *bus, struct module *owner)
+ if (IS_ERR(gpiod)) {
+ dev_err(&bus->dev, "mii_bus %s couldn't get reset GPIO\n",
+ bus->id);
++ device_del(&bus->dev);
+ return PTR_ERR(gpiod);
+ } else if (gpiod) {
+ bus->reset_gpiod = gpiod;
+diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
+index fd051ae787cb..5dd661fb662f 100644
+--- a/drivers/net/phy/phy_device.c
++++ b/drivers/net/phy/phy_device.c
+@@ -2196,6 +2196,11 @@ int phy_driver_register(struct phy_driver *new_driver, struct module *owner)
+ {
+ int retval;
+
++ if (WARN_ON(!new_driver->features)) {
++ pr_err("%s: Driver features are missing\n", new_driver->name);
++ return -EINVAL;
++ }
++
+ new_driver->mdiodrv.flags |= MDIO_DEVICE_IS_PHY;
+ new_driver->mdiodrv.driver.name = new_driver->name;
+ new_driver->mdiodrv.driver.bus = &mdio_bus_type;
+diff --git a/drivers/net/ppp/pppoe.c b/drivers/net/ppp/pppoe.c
+index 62dc564b251d..f22639f0116a 100644
+--- a/drivers/net/ppp/pppoe.c
++++ b/drivers/net/ppp/pppoe.c
+@@ -445,6 +445,7 @@ static int pppoe_rcv(struct sk_buff *skb, struct net_device *dev,
+ if (pskb_trim_rcsum(skb, len))
+ goto drop;
+
++ ph = pppoe_hdr(skb);
+ pn = pppoe_pernet(dev_net(dev));
+
+ /* Note that get_item does a sock_hold(), so sk_pppox(po)
+diff --git a/drivers/net/wireless/mediatek/mt76/mt76.h b/drivers/net/wireless/mediatek/mt76/mt76.h
+index 3bfa7f5e3513..2e5bcb3fdff7 100644
+--- a/drivers/net/wireless/mediatek/mt76/mt76.h
++++ b/drivers/net/wireless/mediatek/mt76/mt76.h
+@@ -1,3 +1,4 @@
++
+ /*
+ * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
+ *
+diff --git a/drivers/net/wireless/mediatek/mt76/mt76x0/main.c b/drivers/net/wireless/mediatek/mt76/mt76x0/main.c
+index 9273d2d2764a..732f4b87fdcb 100644
+--- a/drivers/net/wireless/mediatek/mt76/mt76x0/main.c
++++ b/drivers/net/wireless/mediatek/mt76/mt76x0/main.c
+@@ -116,9 +116,6 @@ void mt76x0_bss_info_changed(struct ieee80211_hw *hw,
+ MT_BKOFF_SLOT_CFG_SLOTTIME, slottime);
+ }
+
+- if (changed & BSS_CHANGED_ASSOC)
+- mt76x0_phy_recalibrate_after_assoc(dev);
+-
+ mutex_unlock(&dev->mt76.mutex);
+ }
+ EXPORT_SYMBOL_GPL(mt76x0_bss_info_changed);
+@@ -138,6 +135,12 @@ void mt76x0_sw_scan_complete(struct ieee80211_hw *hw,
+ struct mt76x02_dev *dev = hw->priv;
+
+ clear_bit(MT76_SCANNING, &dev->mt76.state);
++
++ if (dev->cal.gain_init_done) {
++ /* Restore AGC gain and resume calibration after scanning. */
++ dev->cal.low_gain = -1;
++ ieee80211_queue_delayed_work(hw, &dev->cal_work, 0);
++ }
+ }
+ EXPORT_SYMBOL_GPL(mt76x0_sw_scan_complete);
+
+diff --git a/drivers/net/wireless/mediatek/mt76/mt76x0/mt76x0.h b/drivers/net/wireless/mediatek/mt76/mt76x0/mt76x0.h
+index 2187bafaf2e9..0057f69d0c36 100644
+--- a/drivers/net/wireless/mediatek/mt76/mt76x0/mt76x0.h
++++ b/drivers/net/wireless/mediatek/mt76/mt76x0/mt76x0.h
+@@ -41,6 +41,11 @@ static inline bool is_mt7610e(struct mt76x02_dev *dev)
+
+ void mt76x0_init_debugfs(struct mt76x02_dev *dev);
+
++static inline bool is_mt7630(struct mt76x02_dev *dev)
++{
++ return mt76_chip(&dev->mt76) == 0x7630;
++}
++
+ /* Init */
+ struct mt76x02_dev *
+ mt76x0_alloc_device(struct device *pdev,
+diff --git a/drivers/net/wireless/mediatek/mt76/mt76x0/phy.c b/drivers/net/wireless/mediatek/mt76/mt76x0/phy.c
+index cf024950e0ed..c34abd1c6030 100644
+--- a/drivers/net/wireless/mediatek/mt76/mt76x0/phy.c
++++ b/drivers/net/wireless/mediatek/mt76/mt76x0/phy.c
+@@ -215,62 +215,6 @@ int mt76x0_wait_bbp_ready(struct mt76x02_dev *dev)
+ return 0;
+ }
+
+-static void mt76x0_vco_cal(struct mt76x02_dev *dev, u8 channel)
+-{
+- u8 val;
+-
+- val = rf_rr(dev, MT_RF(0, 4));
+- if ((val & 0x70) != 0x30)
+- return;
+-
+- /*
+- * Calibration Mode - Open loop, closed loop, and amplitude:
+- * B0.R06.[0]: 1
+- * B0.R06.[3:1] bp_close_code: 100
+- * B0.R05.[7:0] bp_open_code: 0x0
+- * B0.R04.[2:0] cal_bits: 000
+- * B0.R03.[2:0] startup_time: 011
+- * B0.R03.[6:4] settle_time:
+- * 80MHz channel: 110
+- * 40MHz channel: 101
+- * 20MHz channel: 100
+- */
+- val = rf_rr(dev, MT_RF(0, 6));
+- val &= ~0xf;
+- val |= 0x09;
+- rf_wr(dev, MT_RF(0, 6), val);
+-
+- val = rf_rr(dev, MT_RF(0, 5));
+- if (val != 0)
+- rf_wr(dev, MT_RF(0, 5), 0x0);
+-
+- val = rf_rr(dev, MT_RF(0, 4));
+- val &= ~0x07;
+- rf_wr(dev, MT_RF(0, 4), val);
+-
+- val = rf_rr(dev, MT_RF(0, 3));
+- val &= ~0x77;
+- if (channel == 1 || channel == 7 || channel == 9 || channel >= 13) {
+- val |= 0x63;
+- } else if (channel == 3 || channel == 4 || channel == 10) {
+- val |= 0x53;
+- } else if (channel == 2 || channel == 5 || channel == 6 ||
+- channel == 8 || channel == 11 || channel == 12) {
+- val |= 0x43;
+- } else {
+- WARN(1, "Unknown channel %u\n", channel);
+- return;
+- }
+- rf_wr(dev, MT_RF(0, 3), val);
+-
+- /* TODO replace by mt76x0_rf_set(dev, MT_RF(0, 4), BIT(7)); */
+- val = rf_rr(dev, MT_RF(0, 4));
+- val = ((val & ~(0x80)) | 0x80);
+- rf_wr(dev, MT_RF(0, 4), val);
+-
+- msleep(2);
+-}
+-
+ static void
+ mt76x0_phy_set_band(struct mt76x02_dev *dev, enum nl80211_band band)
+ {
+@@ -518,21 +462,47 @@ mt76x0_phy_set_chan_bbp_params(struct mt76x02_dev *dev, u16 rf_bw_band)
+
+ static void mt76x0_ant_select(struct mt76x02_dev *dev)
+ {
+- struct ieee80211_channel *chan = dev->mt76.chandef.chan;
+-
+- /* single antenna mode */
+- if (chan->band == NL80211_BAND_2GHZ) {
+- mt76_rmw(dev, MT_COEXCFG3,
+- BIT(5) | BIT(4) | BIT(3) | BIT(2), BIT(1));
+- mt76_rmw(dev, MT_WLAN_FUN_CTRL, BIT(5), BIT(6));
++ u16 ee_ant = mt76x02_eeprom_get(dev, MT_EE_ANTENNA);
++ u16 nic_conf2 = mt76x02_eeprom_get(dev, MT_EE_NIC_CONF_2);
++ u32 wlan, coex3, cmb;
++ bool ant_div;
++
++ wlan = mt76_rr(dev, MT_WLAN_FUN_CTRL);
++ cmb = mt76_rr(dev, MT_CMB_CTRL);
++ coex3 = mt76_rr(dev, MT_COEXCFG3);
++
++ cmb &= ~(BIT(14) | BIT(12));
++ wlan &= ~(BIT(6) | BIT(5));
++ coex3 &= ~GENMASK(5, 2);
++
++ if (ee_ant & MT_EE_ANTENNA_DUAL) {
++ /* dual antenna mode */
++ ant_div = !(nic_conf2 & MT_EE_NIC_CONF_2_ANT_OPT) &&
++ (nic_conf2 & MT_EE_NIC_CONF_2_ANT_DIV);
++ if (ant_div)
++ cmb |= BIT(12);
++ else
++ coex3 |= BIT(4);
++ coex3 |= BIT(3);
++ if (dev->mt76.cap.has_2ghz)
++ wlan |= BIT(6);
+ } else {
+- mt76_rmw(dev, MT_COEXCFG3, BIT(5) | BIT(2),
+- BIT(4) | BIT(3));
+- mt76_clear(dev, MT_WLAN_FUN_CTRL,
+- BIT(6) | BIT(5));
++ /* sigle antenna mode */
++ if (dev->mt76.cap.has_5ghz) {
++ coex3 |= BIT(3) | BIT(4);
++ } else {
++ wlan |= BIT(6);
++ coex3 |= BIT(1);
++ }
+ }
+- mt76_clear(dev, MT_CMB_CTRL, BIT(14) | BIT(12));
++
++ if (is_mt7630(dev))
++ cmb |= BIT(14) | BIT(11);
++
++ mt76_wr(dev, MT_WLAN_FUN_CTRL, wlan);
++ mt76_wr(dev, MT_CMB_CTRL, cmb);
+ mt76_clear(dev, MT_COEXCFG0, BIT(2));
++ mt76_wr(dev, MT_COEXCFG3, coex3);
+ }
+
+ static void
+@@ -585,8 +555,12 @@ void mt76x0_phy_set_txpower(struct mt76x02_dev *dev)
+ void mt76x0_phy_calibrate(struct mt76x02_dev *dev, bool power_on)
+ {
+ struct ieee80211_channel *chan = dev->mt76.chandef.chan;
++ int is_5ghz = (chan->band == NL80211_BAND_5GHZ) ? 1 : 0;
+ u32 val, tx_alc, reg_val;
+
++ if (is_mt7630(dev))
++ return;
++
+ if (power_on) {
+ mt76x02_mcu_calibrate(dev, MCU_CAL_R, 0, false);
+ mt76x02_mcu_calibrate(dev, MCU_CAL_VCO, chan->hw_value,
+@@ -602,7 +576,7 @@ void mt76x0_phy_calibrate(struct mt76x02_dev *dev, bool power_on)
+ reg_val = mt76_rr(dev, MT_BBP(IBI, 9));
+ mt76_wr(dev, MT_BBP(IBI, 9), 0xffffff7e);
+
+- if (chan->band == NL80211_BAND_5GHZ) {
++ if (is_5ghz) {
+ if (chan->hw_value < 100)
+ val = 0x701;
+ else if (chan->hw_value < 140)
+@@ -615,7 +589,7 @@ void mt76x0_phy_calibrate(struct mt76x02_dev *dev, bool power_on)
+
+ mt76x02_mcu_calibrate(dev, MCU_CAL_FULL, val, false);
+ msleep(350);
+- mt76x02_mcu_calibrate(dev, MCU_CAL_LC, 1, false);
++ mt76x02_mcu_calibrate(dev, MCU_CAL_LC, is_5ghz, false);
+ usleep_range(15000, 20000);
+
+ mt76_wr(dev, MT_BBP(IBI, 9), reg_val);
+@@ -696,7 +670,6 @@ int mt76x0_phy_set_channel(struct mt76x02_dev *dev,
+ mt76x02_phy_set_bw(dev, chandef->width, ch_group_index);
+ mt76x02_phy_set_band(dev, chandef->chan->band,
+ ch_group_index & 1);
+- mt76x0_ant_select(dev);
+
+ mt76_rmw(dev, MT_EXT_CCA_CFG,
+ (MT_EXT_CCA_CFG_CCA0 |
+@@ -719,20 +692,16 @@ int mt76x0_phy_set_channel(struct mt76x02_dev *dev,
+
+ mt76x0_read_rx_gain(dev);
+ mt76x0_phy_set_chan_bbp_params(dev, rf_bw_band);
+- mt76x02_init_agc_gain(dev);
+
+- if (mt76_is_usb(dev)) {
+- mt76x0_vco_cal(dev, channel);
+- } else {
+- /* enable vco */
+- rf_set(dev, MT_RF(0, 4), BIT(7));
+- }
++ /* enable vco */
++ rf_set(dev, MT_RF(0, 4), BIT(7));
+
+ if (scan)
+ return 0;
+
+- if (mt76_is_mmio(dev))
+- mt76x0_phy_calibrate(dev, false);
++ mt76x0_phy_calibrate(dev, false);
++ mt76x02_init_agc_gain(dev);
++
+ mt76x0_phy_set_txpower(dev);
+
+ ieee80211_queue_delayed_work(dev->mt76.hw, &dev->cal_work,
+@@ -741,39 +710,6 @@ int mt76x0_phy_set_channel(struct mt76x02_dev *dev,
+ return 0;
+ }
+
+-void mt76x0_phy_recalibrate_after_assoc(struct mt76x02_dev *dev)
+-{
+- u32 tx_alc, reg_val;
+- u8 channel = dev->mt76.chandef.chan->hw_value;
+- int is_5ghz = (dev->mt76.chandef.chan->band == NL80211_BAND_5GHZ) ? 1 : 0;
+-
+- mt76x02_mcu_calibrate(dev, MCU_CAL_R, 0, false);
+-
+- mt76x0_vco_cal(dev, channel);
+-
+- tx_alc = mt76_rr(dev, MT_TX_ALC_CFG_0);
+- mt76_wr(dev, MT_TX_ALC_CFG_0, 0);
+- usleep_range(500, 700);
+-
+- reg_val = mt76_rr(dev, MT_BBP(IBI, 9));
+- mt76_wr(dev, MT_BBP(IBI, 9), 0xffffff7e);
+-
+- mt76x02_mcu_calibrate(dev, MCU_CAL_RXDCOC, 0, false);
+-
+- mt76x02_mcu_calibrate(dev, MCU_CAL_LC, is_5ghz, false);
+- mt76x02_mcu_calibrate(dev, MCU_CAL_LOFT, is_5ghz, false);
+- mt76x02_mcu_calibrate(dev, MCU_CAL_TXIQ, is_5ghz, false);
+- mt76x02_mcu_calibrate(dev, MCU_CAL_TX_GROUP_DELAY, is_5ghz, false);
+- mt76x02_mcu_calibrate(dev, MCU_CAL_RXIQ, is_5ghz, false);
+- mt76x02_mcu_calibrate(dev, MCU_CAL_RX_GROUP_DELAY, is_5ghz, false);
+-
+- mt76_wr(dev, MT_BBP(IBI, 9), reg_val);
+- mt76_wr(dev, MT_TX_ALC_CFG_0, tx_alc);
+- msleep(100);
+-
+- mt76x02_mcu_calibrate(dev, MCU_CAL_RXDCOC, 1, false);
+-}
+-
+ static void mt76x0_temp_sensor(struct mt76x02_dev *dev)
+ {
+ u8 rf_b7_73, rf_b0_66, rf_b0_67;
+@@ -817,10 +753,8 @@ done:
+ static void mt76x0_phy_set_gain_val(struct mt76x02_dev *dev)
+ {
+ u8 gain = dev->cal.agc_gain_cur[0] - dev->cal.agc_gain_adjust;
+- u32 val = 0x122c << 16 | 0xf2;
+
+- mt76_wr(dev, MT_BBP(AGC, 8),
+- val | FIELD_PREP(MT_BBP_AGC_GAIN, gain));
++ mt76_rmw_field(dev, MT_BBP(AGC, 8), MT_BBP_AGC_GAIN, gain);
+ }
+
+ static void
+@@ -835,7 +769,8 @@ mt76x0_phy_update_channel_gain(struct mt76x02_dev *dev)
+ low_gain = (dev->cal.avg_rssi_all > mt76x02_get_rssi_gain_thresh(dev)) +
+ (dev->cal.avg_rssi_all > mt76x02_get_low_rssi_gain_thresh(dev));
+
+- gain_change = (dev->cal.low_gain & 2) ^ (low_gain & 2);
++ gain_change = dev->cal.low_gain < 0 ||
++ (dev->cal.low_gain & 2) ^ (low_gain & 2);
+ dev->cal.low_gain = low_gain;
+
+ if (!gain_change) {
+@@ -924,6 +859,7 @@ void mt76x0_phy_init(struct mt76x02_dev *dev)
+ {
+ INIT_DELAYED_WORK(&dev->cal_work, mt76x0_phy_calibration_work);
+
++ mt76x0_ant_select(dev);
+ mt76x0_rf_init(dev);
+ mt76x02_phy_set_rxpath(dev);
+ mt76x02_phy_set_txdac(dev);
+diff --git a/drivers/net/wireless/mediatek/mt76/mt76x0/usb.c b/drivers/net/wireless/mediatek/mt76/mt76x0/usb.c
+index a7fd36c2f633..ea517864186b 100644
+--- a/drivers/net/wireless/mediatek/mt76/mt76x0/usb.c
++++ b/drivers/net/wireless/mediatek/mt76/mt76x0/usb.c
+@@ -117,6 +117,7 @@ static int mt76x0u_start(struct ieee80211_hw *hw)
+ if (ret)
+ goto out;
+
++ mt76x0_phy_calibrate(dev, true);
+ ieee80211_queue_delayed_work(dev->mt76.hw, &dev->mac_work,
+ MT_CALIBRATE_INTERVAL);
+ ieee80211_queue_delayed_work(dev->mt76.hw, &dev->cal_work,
+diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02.h b/drivers/net/wireless/mediatek/mt76/mt76x02.h
+index 7806963b1905..9a5ae5c06840 100644
+--- a/drivers/net/wireless/mediatek/mt76/mt76x02.h
++++ b/drivers/net/wireless/mediatek/mt76/mt76x02.h
+@@ -63,6 +63,7 @@ struct mt76x02_calibration {
+ bool tssi_comp_pending;
+ bool dpd_cal_done;
+ bool channel_cal_done;
++ bool gain_init_done;
+ };
+
+ struct mt76x02_dev {
+diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02_eeprom.h b/drivers/net/wireless/mediatek/mt76/mt76x02_eeprom.h
+index b3ec74835d10..1de041590050 100644
+--- a/drivers/net/wireless/mediatek/mt76/mt76x02_eeprom.h
++++ b/drivers/net/wireless/mediatek/mt76/mt76x02_eeprom.h
+@@ -25,6 +25,7 @@ enum mt76x02_eeprom_field {
+ MT_EE_VERSION = 0x002,
+ MT_EE_MAC_ADDR = 0x004,
+ MT_EE_PCI_ID = 0x00A,
++ MT_EE_ANTENNA = 0x022,
+ MT_EE_NIC_CONF_0 = 0x034,
+ MT_EE_NIC_CONF_1 = 0x036,
+ MT_EE_COUNTRY_REGION_5GHZ = 0x038,
+@@ -104,6 +105,8 @@ enum mt76x02_eeprom_field {
+ __MT_EE_MAX
+ };
+
++#define MT_EE_ANTENNA_DUAL BIT(15)
++
+ #define MT_EE_NIC_CONF_0_RX_PATH GENMASK(3, 0)
+ #define MT_EE_NIC_CONF_0_TX_PATH GENMASK(7, 4)
+ #define MT_EE_NIC_CONF_0_PA_TYPE GENMASK(9, 8)
+@@ -118,12 +121,9 @@ enum mt76x02_eeprom_field {
+ #define MT_EE_NIC_CONF_1_LNA_EXT_5G BIT(3)
+ #define MT_EE_NIC_CONF_1_TX_ALC_EN BIT(13)
+
+-#define MT_EE_NIC_CONF_2_RX_STREAM GENMASK(3, 0)
+-#define MT_EE_NIC_CONF_2_TX_STREAM GENMASK(7, 4)
+-#define MT_EE_NIC_CONF_2_HW_ANTDIV BIT(8)
++#define MT_EE_NIC_CONF_2_ANT_OPT BIT(3)
++#define MT_EE_NIC_CONF_2_ANT_DIV BIT(4)
+ #define MT_EE_NIC_CONF_2_XTAL_OPTION GENMASK(10, 9)
+-#define MT_EE_NIC_CONF_2_TEMP_DISABLE BIT(11)
+-#define MT_EE_NIC_CONF_2_COEX_METHOD GENMASK(15, 13)
+
+ #define MT_EFUSE_USAGE_MAP_SIZE (MT_EE_USAGE_MAP_END - \
+ MT_EE_USAGE_MAP_START + 1)
+diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02_phy.c b/drivers/net/wireless/mediatek/mt76/mt76x02_phy.c
+index 0f1d7b5c9f68..977a8e7e26df 100644
+--- a/drivers/net/wireless/mediatek/mt76/mt76x02_phy.c
++++ b/drivers/net/wireless/mediatek/mt76/mt76x02_phy.c
+@@ -254,5 +254,6 @@ void mt76x02_init_agc_gain(struct mt76x02_dev *dev)
+ memcpy(dev->cal.agc_gain_cur, dev->cal.agc_gain_init,
+ sizeof(dev->cal.agc_gain_cur));
+ dev->cal.low_gain = -1;
++ dev->cal.gain_init_done = true;
+ }
+ EXPORT_SYMBOL_GPL(mt76x02_init_agc_gain);
+diff --git a/drivers/net/wireless/mediatek/mt76/mt76x2/usb_main.c b/drivers/net/wireless/mediatek/mt76/mt76x2/usb_main.c
+index 1971a1b00038..9471b44ce558 100644
+--- a/drivers/net/wireless/mediatek/mt76/mt76x2/usb_main.c
++++ b/drivers/net/wireless/mediatek/mt76/mt76x2/usb_main.c
+@@ -156,6 +156,9 @@ mt76x2u_sw_scan_complete(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
+ struct mt76x02_dev *dev = hw->priv;
+
+ clear_bit(MT76_SCANNING, &dev->mt76.state);
++
++ if (dev->cal.gain_init_done)
++ ieee80211_queue_delayed_work(hw, &dev->cal_work, 0);
+ }
+
+ const struct ieee80211_ops mt76x2u_ops = {
+diff --git a/drivers/nvme/target/rdma.c b/drivers/nvme/target/rdma.c
+index 583086dd9cb9..bfc5ef6d85b7 100644
+--- a/drivers/nvme/target/rdma.c
++++ b/drivers/nvme/target/rdma.c
+@@ -139,6 +139,10 @@ static void nvmet_rdma_recv_done(struct ib_cq *cq, struct ib_wc *wc);
+ static void nvmet_rdma_read_data_done(struct ib_cq *cq, struct ib_wc *wc);
+ static void nvmet_rdma_qp_event(struct ib_event *event, void *priv);
+ static void nvmet_rdma_queue_disconnect(struct nvmet_rdma_queue *queue);
++static void nvmet_rdma_free_rsp(struct nvmet_rdma_device *ndev,
++ struct nvmet_rdma_rsp *r);
++static int nvmet_rdma_alloc_rsp(struct nvmet_rdma_device *ndev,
++ struct nvmet_rdma_rsp *r);
+
+ static const struct nvmet_fabrics_ops nvmet_rdma_ops;
+
+@@ -182,9 +186,17 @@ nvmet_rdma_get_rsp(struct nvmet_rdma_queue *queue)
+ spin_unlock_irqrestore(&queue->rsps_lock, flags);
+
+ if (unlikely(!rsp)) {
+- rsp = kmalloc(sizeof(*rsp), GFP_KERNEL);
++ int ret;
++
++ rsp = kzalloc(sizeof(*rsp), GFP_KERNEL);
+ if (unlikely(!rsp))
+ return NULL;
++ ret = nvmet_rdma_alloc_rsp(queue->dev, rsp);
++ if (unlikely(ret)) {
++ kfree(rsp);
++ return NULL;
++ }
++
+ rsp->allocated = true;
+ }
+
+@@ -196,7 +208,8 @@ nvmet_rdma_put_rsp(struct nvmet_rdma_rsp *rsp)
+ {
+ unsigned long flags;
+
+- if (rsp->allocated) {
++ if (unlikely(rsp->allocated)) {
++ nvmet_rdma_free_rsp(rsp->queue->dev, rsp);
+ kfree(rsp);
+ return;
+ }
+diff --git a/drivers/s390/char/sclp_config.c b/drivers/s390/char/sclp_config.c
+index 194ffd5c8580..039b2074db7e 100644
+--- a/drivers/s390/char/sclp_config.c
++++ b/drivers/s390/char/sclp_config.c
+@@ -60,7 +60,9 @@ static void sclp_cpu_capability_notify(struct work_struct *work)
+
+ static void __ref sclp_cpu_change_notify(struct work_struct *work)
+ {
++ lock_device_hotplug();
+ smp_rescan_cpus();
++ unlock_device_hotplug();
+ }
+
+ static void sclp_conf_receiver_fn(struct evbuf_header *evbuf)
+diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
+index f1c57cd33b5b..1cb35ab8a4ec 100644
+--- a/drivers/scsi/ufs/ufshcd.c
++++ b/drivers/scsi/ufs/ufshcd.c
+@@ -110,13 +110,19 @@
+ int ufshcd_dump_regs(struct ufs_hba *hba, size_t offset, size_t len,
+ const char *prefix)
+ {
+- u8 *regs;
++ u32 *regs;
++ size_t pos;
++
++ if (offset % 4 != 0 || len % 4 != 0) /* keep readl happy */
++ return -EINVAL;
+
+ regs = kzalloc(len, GFP_KERNEL);
+ if (!regs)
+ return -ENOMEM;
+
+- memcpy_fromio(regs, hba->mmio_base + offset, len);
++ for (pos = 0; pos < len; pos += 4)
++ regs[pos / 4] = ufshcd_readl(hba, offset + pos);
++
+ ufshcd_hex_dump(prefix, regs, len);
+ kfree(regs);
+
+diff --git a/drivers/staging/rtl8188eu/os_dep/usb_intf.c b/drivers/staging/rtl8188eu/os_dep/usb_intf.c
+index 28cbd6b3d26c..dfee6985efa6 100644
+--- a/drivers/staging/rtl8188eu/os_dep/usb_intf.c
++++ b/drivers/staging/rtl8188eu/os_dep/usb_intf.c
+@@ -35,6 +35,7 @@ static const struct usb_device_id rtw_usb_id_tbl[] = {
+ {USB_DEVICE(0x2001, 0x330F)}, /* DLink DWA-125 REV D1 */
+ {USB_DEVICE(0x2001, 0x3310)}, /* Dlink DWA-123 REV D1 */
+ {USB_DEVICE(0x2001, 0x3311)}, /* DLink GO-USB-N150 REV B1 */
++ {USB_DEVICE(0x2001, 0x331B)}, /* D-Link DWA-121 rev B1 */
+ {USB_DEVICE(0x2357, 0x010c)}, /* TP-Link TL-WN722N v2 */
+ {USB_DEVICE(0x0df6, 0x0076)}, /* Sitecom N150 v2 */
+ {USB_DEVICE(USB_VENDER_ID_REALTEK, 0xffef)}, /* Rosewill RNX-N150NUB */
+diff --git a/drivers/tty/n_hdlc.c b/drivers/tty/n_hdlc.c
+index dabb391909aa..bb63519db7ae 100644
+--- a/drivers/tty/n_hdlc.c
++++ b/drivers/tty/n_hdlc.c
+@@ -597,6 +597,7 @@ static ssize_t n_hdlc_tty_read(struct tty_struct *tty, struct file *file,
+ /* too large for caller's buffer */
+ ret = -EOVERFLOW;
+ } else {
++ __set_current_state(TASK_RUNNING);
+ if (copy_to_user(buf, rbuf->buf, rbuf->count))
+ ret = -EFAULT;
+ else
+diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
+index d4cca5bdaf1c..5c01bb6d1c24 100644
+--- a/drivers/tty/serial/serial_core.c
++++ b/drivers/tty/serial/serial_core.c
+@@ -550,10 +550,12 @@ static int uart_put_char(struct tty_struct *tty, unsigned char c)
+ int ret = 0;
+
+ circ = &state->xmit;
+- if (!circ->buf)
++ port = uart_port_lock(state, flags);
++ if (!circ->buf) {
++ uart_port_unlock(port, flags);
+ return 0;
++ }
+
+- port = uart_port_lock(state, flags);
+ if (port && uart_circ_chars_free(circ) != 0) {
+ circ->buf[circ->head] = c;
+ circ->head = (circ->head + 1) & (UART_XMIT_SIZE - 1);
+@@ -586,11 +588,13 @@ static int uart_write(struct tty_struct *tty,
+ return -EL3HLT;
+ }
+
++ port = uart_port_lock(state, flags);
+ circ = &state->xmit;
+- if (!circ->buf)
++ if (!circ->buf) {
++ uart_port_unlock(port, flags);
+ return 0;
++ }
+
+- port = uart_port_lock(state, flags);
+ while (port) {
+ c = CIRC_SPACE_TO_END(circ->head, circ->tail, UART_XMIT_SIZE);
+ if (count < c)
+diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
+index 23c6fd238422..21ffcce16927 100644
+--- a/drivers/tty/tty_io.c
++++ b/drivers/tty/tty_io.c
+@@ -2189,7 +2189,8 @@ static int tiocsti(struct tty_struct *tty, char __user *p)
+ ld = tty_ldisc_ref_wait(tty);
+ if (!ld)
+ return -EIO;
+- ld->ops->receive_buf(tty, &ch, &mbz, 1);
++ if (ld->ops->receive_buf)
++ ld->ops->receive_buf(tty, &ch, &mbz, 1);
+ tty_ldisc_deref(ld);
+ return 0;
+ }
+diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
+index 41ec8e5010f3..bba75560d11e 100644
+--- a/drivers/tty/vt/vt.c
++++ b/drivers/tty/vt/vt.c
+@@ -1272,6 +1272,7 @@ static int vc_do_resize(struct tty_struct *tty, struct vc_data *vc,
+ if (con_is_visible(vc))
+ update_screen(vc);
+ vt_event_post(VT_EVENT_RESIZE, vc->vc_num, vc->vc_num);
++ notify_update(vc);
+ return err;
+ }
+
+@@ -2764,8 +2765,8 @@ rescan_last_byte:
+ con_flush(vc, draw_from, draw_to, &draw_x);
+ vc_uniscr_debug_check(vc);
+ console_conditional_schedule();
+- console_unlock();
+ notify_update(vc);
++ console_unlock();
+ return n;
+ }
+
+@@ -2884,8 +2885,7 @@ static void vt_console_print(struct console *co, const char *b, unsigned count)
+ unsigned char c;
+ static DEFINE_SPINLOCK(printing_lock);
+ const ushort *start;
+- ushort cnt = 0;
+- ushort myx;
++ ushort start_x, cnt;
+ int kmsg_console;
+
+ /* console busy or not yet initialized */
+@@ -2898,10 +2898,6 @@ static void vt_console_print(struct console *co, const char *b, unsigned count)
+ if (kmsg_console && vc_cons_allocated(kmsg_console - 1))
+ vc = vc_cons[kmsg_console - 1].d;
+
+- /* read `x' only after setting currcons properly (otherwise
+- the `x' macro will read the x of the foreground console). */
+- myx = vc->vc_x;
+-
+ if (!vc_cons_allocated(fg_console)) {
+ /* impossible */
+ /* printk("vt_console_print: tty %d not allocated ??\n", currcons+1); */
+@@ -2916,53 +2912,41 @@ static void vt_console_print(struct console *co, const char *b, unsigned count)
+ hide_cursor(vc);
+
+ start = (ushort *)vc->vc_pos;
+-
+- /* Contrived structure to try to emulate original need_wrap behaviour
+- * Problems caused when we have need_wrap set on '\n' character */
++ start_x = vc->vc_x;
++ cnt = 0;
+ while (count--) {
+ c = *b++;
+ if (c == 10 || c == 13 || c == 8 || vc->vc_need_wrap) {
+- if (cnt > 0) {
+- if (con_is_visible(vc))
+- vc->vc_sw->con_putcs(vc, start, cnt, vc->vc_y, vc->vc_x);
+- vc->vc_x += cnt;
+- if (vc->vc_need_wrap)
+- vc->vc_x--;
+- cnt = 0;
+- }
++ if (cnt && con_is_visible(vc))
++ vc->vc_sw->con_putcs(vc, start, cnt, vc->vc_y, start_x);
++ cnt = 0;
+ if (c == 8) { /* backspace */
+ bs(vc);
+ start = (ushort *)vc->vc_pos;
+- myx = vc->vc_x;
++ start_x = vc->vc_x;
+ continue;
+ }
+ if (c != 13)
+ lf(vc);
+ cr(vc);
+ start = (ushort *)vc->vc_pos;
+- myx = vc->vc_x;
++ start_x = vc->vc_x;
+ if (c == 10 || c == 13)
+ continue;
+ }
++ vc_uniscr_putc(vc, c);
+ scr_writew((vc->vc_attr << 8) + c, (unsigned short *)vc->vc_pos);
+ notify_write(vc, c);
+ cnt++;
+- if (myx == vc->vc_cols - 1) {
+- vc->vc_need_wrap = 1;
+- continue;
+- }
+- vc->vc_pos += 2;
+- myx++;
+- }
+- if (cnt > 0) {
+- if (con_is_visible(vc))
+- vc->vc_sw->con_putcs(vc, start, cnt, vc->vc_y, vc->vc_x);
+- vc->vc_x += cnt;
+- if (vc->vc_x == vc->vc_cols) {
+- vc->vc_x--;
++ if (vc->vc_x == vc->vc_cols - 1) {
+ vc->vc_need_wrap = 1;
++ } else {
++ vc->vc_pos += 2;
++ vc->vc_x++;
+ }
+ }
++ if (cnt && con_is_visible(vc))
++ vc->vc_sw->con_putcs(vc, start, cnt, vc->vc_y, start_x);
+ set_cursor(vc);
+ notify_update(vc);
+
+diff --git a/drivers/usb/core/ledtrig-usbport.c b/drivers/usb/core/ledtrig-usbport.c
+index dc7f7fd71684..c12ac56606c3 100644
+--- a/drivers/usb/core/ledtrig-usbport.c
++++ b/drivers/usb/core/ledtrig-usbport.c
+@@ -119,11 +119,6 @@ static const struct attribute_group ports_group = {
+ .attrs = ports_attrs,
+ };
+
+-static const struct attribute_group *ports_groups[] = {
+- &ports_group,
+- NULL
+-};
+-
+ /***************************************
+ * Adding & removing ports
+ ***************************************/
+@@ -307,6 +302,7 @@ static int usbport_trig_notify(struct notifier_block *nb, unsigned long action,
+ static int usbport_trig_activate(struct led_classdev *led_cdev)
+ {
+ struct usbport_trig_data *usbport_data;
++ int err;
+
+ usbport_data = kzalloc(sizeof(*usbport_data), GFP_KERNEL);
+ if (!usbport_data)
+@@ -315,6 +311,9 @@ static int usbport_trig_activate(struct led_classdev *led_cdev)
+
+ /* List of ports */
+ INIT_LIST_HEAD(&usbport_data->ports);
++ err = sysfs_create_group(&led_cdev->dev->kobj, &ports_group);
++ if (err)
++ goto err_free;
+ usb_for_each_dev(usbport_data, usbport_trig_add_usb_dev_ports);
+ usbport_trig_update_count(usbport_data);
+
+@@ -322,8 +321,11 @@ static int usbport_trig_activate(struct led_classdev *led_cdev)
+ usbport_data->nb.notifier_call = usbport_trig_notify;
+ led_set_trigger_data(led_cdev, usbport_data);
+ usb_register_notify(&usbport_data->nb);
+-
+ return 0;
++
++err_free:
++ kfree(usbport_data);
++ return err;
+ }
+
+ static void usbport_trig_deactivate(struct led_classdev *led_cdev)
+@@ -335,6 +337,8 @@ static void usbport_trig_deactivate(struct led_classdev *led_cdev)
+ usbport_trig_remove_port(usbport_data, port);
+ }
+
++ sysfs_remove_group(&led_cdev->dev->kobj, &ports_group);
++
+ usb_unregister_notify(&usbport_data->nb);
+
+ kfree(usbport_data);
+@@ -344,7 +348,6 @@ static struct led_trigger usbport_led_trigger = {
+ .name = "usbport",
+ .activate = usbport_trig_activate,
+ .deactivate = usbport_trig_deactivate,
+- .groups = ports_groups,
+ };
+
+ static int __init usbport_trig_init(void)
+diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
+index 9f92ee03dde7..2a4ea9a1b1e3 100644
+--- a/drivers/usb/dwc3/gadget.c
++++ b/drivers/usb/dwc3/gadget.c
+@@ -177,6 +177,8 @@ static void dwc3_gadget_del_and_unmap_request(struct dwc3_ep *dep,
+ req->started = false;
+ list_del(&req->list);
+ req->remaining = 0;
++ req->unaligned = false;
++ req->zero = false;
+
+ if (req->request.status == -EINPROGRESS)
+ req->request.status = status;
+diff --git a/drivers/usb/host/ehci-mv.c b/drivers/usb/host/ehci-mv.c
+index f26109eafdbf..66ec1fdf9fe7 100644
+--- a/drivers/usb/host/ehci-mv.c
++++ b/drivers/usb/host/ehci-mv.c
+@@ -302,3 +302,4 @@ MODULE_AUTHOR("Chao Xie <chao.xie@marvell.com>");
+ MODULE_AUTHOR("Neil Zhang <zhangwm@marvell.com>");
+ MODULE_ALIAS("mv-ehci");
+ MODULE_LICENSE("GPL");
++MODULE_DEVICE_TABLE(of, ehci_mv_dt_ids);
+diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
+index 609198d9594c..f459c1a18156 100644
+--- a/drivers/usb/serial/ftdi_sio.c
++++ b/drivers/usb/serial/ftdi_sio.c
+@@ -1783,6 +1783,10 @@ static int ftdi_set_bitmode(struct usb_serial_port *port, u8 mode)
+ int result;
+ u16 val;
+
++ result = usb_autopm_get_interface(serial->interface);
++ if (result)
++ return result;
++
+ val = (mode << 8) | (priv->gpio_output << 4) | priv->gpio_value;
+ result = usb_control_msg(serial->dev,
+ usb_sndctrlpipe(serial->dev, 0),
+@@ -1795,6 +1799,8 @@ static int ftdi_set_bitmode(struct usb_serial_port *port, u8 mode)
+ val, result);
+ }
+
++ usb_autopm_put_interface(serial->interface);
++
+ return result;
+ }
+
+@@ -1846,9 +1852,15 @@ static int ftdi_read_cbus_pins(struct usb_serial_port *port)
+ unsigned char *buf;
+ int result;
+
++ result = usb_autopm_get_interface(serial->interface);
++ if (result)
++ return result;
++
+ buf = kmalloc(1, GFP_KERNEL);
+- if (!buf)
++ if (!buf) {
++ usb_autopm_put_interface(serial->interface);
+ return -ENOMEM;
++ }
+
+ result = usb_control_msg(serial->dev,
+ usb_rcvctrlpipe(serial->dev, 0),
+@@ -1863,6 +1875,7 @@ static int ftdi_read_cbus_pins(struct usb_serial_port *port)
+ }
+
+ kfree(buf);
++ usb_autopm_put_interface(serial->interface);
+
+ return result;
+ }
+diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c
+index 98e7a5df0f6d..bb3f9aa4a909 100644
+--- a/drivers/usb/serial/pl2303.c
++++ b/drivers/usb/serial/pl2303.c
+@@ -46,6 +46,7 @@ static const struct usb_device_id id_table[] = {
+ { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_HCR331) },
+ { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_MOTOROLA) },
+ { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_ZTEK) },
++ { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_TB) },
+ { USB_DEVICE(IODATA_VENDOR_ID, IODATA_PRODUCT_ID) },
+ { USB_DEVICE(IODATA_VENDOR_ID, IODATA_PRODUCT_ID_RSAQ5) },
+ { USB_DEVICE(ATEN_VENDOR_ID, ATEN_PRODUCT_ID),
+diff --git a/drivers/usb/serial/pl2303.h b/drivers/usb/serial/pl2303.h
+index 4e2554d55362..559941ca884d 100644
+--- a/drivers/usb/serial/pl2303.h
++++ b/drivers/usb/serial/pl2303.h
+@@ -8,6 +8,7 @@
+
+ #define PL2303_VENDOR_ID 0x067b
+ #define PL2303_PRODUCT_ID 0x2303
++#define PL2303_PRODUCT_ID_TB 0x2304
+ #define PL2303_PRODUCT_ID_RSAQ2 0x04bb
+ #define PL2303_PRODUCT_ID_DCU11 0x1234
+ #define PL2303_PRODUCT_ID_PHAROS 0xaaa0
+@@ -20,6 +21,7 @@
+ #define PL2303_PRODUCT_ID_MOTOROLA 0x0307
+ #define PL2303_PRODUCT_ID_ZTEK 0xe1f1
+
++
+ #define ATEN_VENDOR_ID 0x0557
+ #define ATEN_VENDOR_ID2 0x0547
+ #define ATEN_PRODUCT_ID 0x2008
+diff --git a/drivers/usb/serial/usb-serial-simple.c b/drivers/usb/serial/usb-serial-simple.c
+index 4d0273508043..edbbb13d6de6 100644
+--- a/drivers/usb/serial/usb-serial-simple.c
++++ b/drivers/usb/serial/usb-serial-simple.c
+@@ -85,7 +85,8 @@ DEVICE(moto_modem, MOTO_IDS);
+ /* Motorola Tetra driver */
+ #define MOTOROLA_TETRA_IDS() \
+ { USB_DEVICE(0x0cad, 0x9011) }, /* Motorola Solutions TETRA PEI */ \
+- { USB_DEVICE(0x0cad, 0x9012) } /* MTP6550 */
++ { USB_DEVICE(0x0cad, 0x9012) }, /* MTP6550 */ \
++ { USB_DEVICE(0x0cad, 0x9016) } /* TPG2200 */
+ DEVICE(motorola_tetra, MOTOROLA_TETRA_IDS);
+
+ /* Novatel Wireless GPS driver */
+diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
+index ad7a6f475a44..784df2b49628 100644
+--- a/drivers/vhost/net.c
++++ b/drivers/vhost/net.c
+@@ -1192,7 +1192,8 @@ static void handle_rx(struct vhost_net *net)
+ if (nvq->done_idx > VHOST_NET_BATCH)
+ vhost_net_signal_used(nvq);
+ if (unlikely(vq_log))
+- vhost_log_write(vq, vq_log, log, vhost_len);
++ vhost_log_write(vq, vq_log, log, vhost_len,
++ vq->iov, in);
+ total_len += vhost_len;
+ if (unlikely(vhost_exceeds_weight(++recv_pkts, total_len))) {
+ vhost_poll_queue(&vq->poll);
+diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
+index 55e5aa662ad5..c66fc8308b5e 100644
+--- a/drivers/vhost/vhost.c
++++ b/drivers/vhost/vhost.c
+@@ -1733,13 +1733,87 @@ static int log_write(void __user *log_base,
+ return r;
+ }
+
++static int log_write_hva(struct vhost_virtqueue *vq, u64 hva, u64 len)
++{
++ struct vhost_umem *umem = vq->umem;
++ struct vhost_umem_node *u;
++ u64 start, end, l, min;
++ int r;
++ bool hit = false;
++
++ while (len) {
++ min = len;
++ /* More than one GPAs can be mapped into a single HVA. So
++ * iterate all possible umems here to be safe.
++ */
++ list_for_each_entry(u, &umem->umem_list, link) {
++ if (u->userspace_addr > hva - 1 + len ||
++ u->userspace_addr - 1 + u->size < hva)
++ continue;
++ start = max(u->userspace_addr, hva);
++ end = min(u->userspace_addr - 1 + u->size,
++ hva - 1 + len);
++ l = end - start + 1;
++ r = log_write(vq->log_base,
++ u->start + start - u->userspace_addr,
++ l);
++ if (r < 0)
++ return r;
++ hit = true;
++ min = min(l, min);
++ }
++
++ if (!hit)
++ return -EFAULT;
++
++ len -= min;
++ hva += min;
++ }
++
++ return 0;
++}
++
++static int log_used(struct vhost_virtqueue *vq, u64 used_offset, u64 len)
++{
++ struct iovec iov[64];
++ int i, ret;
++
++ if (!vq->iotlb)
++ return log_write(vq->log_base, vq->log_addr + used_offset, len);
++
++ ret = translate_desc(vq, (uintptr_t)vq->used + used_offset,
++ len, iov, 64, VHOST_ACCESS_WO);
++ if (ret)
++ return ret;
++
++ for (i = 0; i < ret; i++) {
++ ret = log_write_hva(vq, (uintptr_t)iov[i].iov_base,
++ iov[i].iov_len);
++ if (ret)
++ return ret;
++ }
++
++ return 0;
++}
++
+ int vhost_log_write(struct vhost_virtqueue *vq, struct vhost_log *log,
+- unsigned int log_num, u64 len)
++ unsigned int log_num, u64 len, struct iovec *iov, int count)
+ {
+ int i, r;
+
+ /* Make sure data written is seen before log. */
+ smp_wmb();
++
++ if (vq->iotlb) {
++ for (i = 0; i < count; i++) {
++ r = log_write_hva(vq, (uintptr_t)iov[i].iov_base,
++ iov[i].iov_len);
++ if (r < 0)
++ return r;
++ }
++ return 0;
++ }
++
+ for (i = 0; i < log_num; ++i) {
+ u64 l = min(log[i].len, len);
+ r = log_write(vq->log_base, log[i].addr, l);
+@@ -1769,9 +1843,8 @@ static int vhost_update_used_flags(struct vhost_virtqueue *vq)
+ smp_wmb();
+ /* Log used flag write. */
+ used = &vq->used->flags;
+- log_write(vq->log_base, vq->log_addr +
+- (used - (void __user *)vq->used),
+- sizeof vq->used->flags);
++ log_used(vq, (used - (void __user *)vq->used),
++ sizeof vq->used->flags);
+ if (vq->log_ctx)
+ eventfd_signal(vq->log_ctx, 1);
+ }
+@@ -1789,9 +1862,8 @@ static int vhost_update_avail_event(struct vhost_virtqueue *vq, u16 avail_event)
+ smp_wmb();
+ /* Log avail event write */
+ used = vhost_avail_event(vq);
+- log_write(vq->log_base, vq->log_addr +
+- (used - (void __user *)vq->used),
+- sizeof *vhost_avail_event(vq));
++ log_used(vq, (used - (void __user *)vq->used),
++ sizeof *vhost_avail_event(vq));
+ if (vq->log_ctx)
+ eventfd_signal(vq->log_ctx, 1);
+ }
+@@ -2191,10 +2263,8 @@ static int __vhost_add_used_n(struct vhost_virtqueue *vq,
+ /* Make sure data is seen before log. */
+ smp_wmb();
+ /* Log used ring entry write. */
+- log_write(vq->log_base,
+- vq->log_addr +
+- ((void __user *)used - (void __user *)vq->used),
+- count * sizeof *used);
++ log_used(vq, ((void __user *)used - (void __user *)vq->used),
++ count * sizeof *used);
+ }
+ old = vq->last_used_idx;
+ new = (vq->last_used_idx += count);
+@@ -2236,9 +2306,8 @@ int vhost_add_used_n(struct vhost_virtqueue *vq, struct vring_used_elem *heads,
+ /* Make sure used idx is seen before log. */
+ smp_wmb();
+ /* Log used index update. */
+- log_write(vq->log_base,
+- vq->log_addr + offsetof(struct vring_used, idx),
+- sizeof vq->used->idx);
++ log_used(vq, offsetof(struct vring_used, idx),
++ sizeof vq->used->idx);
+ if (vq->log_ctx)
+ eventfd_signal(vq->log_ctx, 1);
+ }
+diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h
+index 466ef7542291..1b675dad5e05 100644
+--- a/drivers/vhost/vhost.h
++++ b/drivers/vhost/vhost.h
+@@ -205,7 +205,8 @@ bool vhost_vq_avail_empty(struct vhost_dev *, struct vhost_virtqueue *);
+ bool vhost_enable_notify(struct vhost_dev *, struct vhost_virtqueue *);
+
+ int vhost_log_write(struct vhost_virtqueue *vq, struct vhost_log *log,
+- unsigned int log_num, u64 len);
++ unsigned int log_num, u64 len,
++ struct iovec *iov, int count);
+ int vq_iotlb_prefetch(struct vhost_virtqueue *vq);
+
+ struct vhost_msg_node *vhost_new_msg(struct vhost_virtqueue *vq, int type);
+diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c
+index 09731b2f6815..c6b3bdbbdbc9 100644
+--- a/drivers/video/console/vgacon.c
++++ b/drivers/video/console/vgacon.c
+@@ -271,6 +271,7 @@ static void vgacon_scrollback_update(struct vc_data *c, int t, int count)
+
+ static void vgacon_restore_screen(struct vc_data *c)
+ {
++ c->vc_origin = c->vc_visible_origin;
+ vgacon_scrollback_cur->save = 0;
+
+ if (!vga_is_gfx && !vgacon_scrollback_cur->restore) {
+@@ -287,8 +288,7 @@ static void vgacon_scrolldelta(struct vc_data *c, int lines)
+ int start, end, count, soff;
+
+ if (!lines) {
+- c->vc_visible_origin = c->vc_origin;
+- vga_set_mem_top(c);
++ vgacon_restore_screen(c);
+ return;
+ }
+
+@@ -298,6 +298,7 @@ static void vgacon_scrolldelta(struct vc_data *c, int lines)
+ if (!vgacon_scrollback_cur->save) {
+ vgacon_cursor(c, CM_ERASE);
+ vgacon_save_screen(c);
++ c->vc_origin = (unsigned long)c->vc_screenbuf;
+ vgacon_scrollback_cur->save = 1;
+ }
+
+@@ -335,7 +336,7 @@ static void vgacon_scrolldelta(struct vc_data *c, int lines)
+ int copysize;
+
+ int diff = c->vc_rows - count;
+- void *d = (void *) c->vc_origin;
++ void *d = (void *) c->vc_visible_origin;
+ void *s = (void *) c->vc_screenbuf;
+
+ count *= c->vc_size_row;
+diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
+index a58666a3f8dd..08aaf580fa1c 100644
+--- a/fs/ceph/caps.c
++++ b/fs/ceph/caps.c
+@@ -1032,6 +1032,8 @@ static void drop_inode_snap_realm(struct ceph_inode_info *ci)
+ list_del_init(&ci->i_snap_realm_item);
+ ci->i_snap_realm_counter++;
+ ci->i_snap_realm = NULL;
++ if (realm->ino == ci->i_vino.ino)
++ realm->inode = NULL;
+ spin_unlock(&realm->inodes_with_caps_lock);
+ ceph_put_snap_realm(ceph_sb_to_client(ci->vfs_inode.i_sb)->mdsc,
+ realm);
+diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
+index f82fd342bca5..fce610f6cd24 100644
+--- a/fs/cifs/cifssmb.c
++++ b/fs/cifs/cifssmb.c
+@@ -1458,18 +1458,26 @@ cifs_discard_remaining_data(struct TCP_Server_Info *server)
+ }
+
+ static int
+-cifs_readv_discard(struct TCP_Server_Info *server, struct mid_q_entry *mid)
++__cifs_readv_discard(struct TCP_Server_Info *server, struct mid_q_entry *mid,
++ bool malformed)
+ {
+ int length;
+- struct cifs_readdata *rdata = mid->callback_data;
+
+ length = cifs_discard_remaining_data(server);
+- dequeue_mid(mid, rdata->result);
++ dequeue_mid(mid, malformed);
+ mid->resp_buf = server->smallbuf;
+ server->smallbuf = NULL;
+ return length;
+ }
+
++static int
++cifs_readv_discard(struct TCP_Server_Info *server, struct mid_q_entry *mid)
++{
++ struct cifs_readdata *rdata = mid->callback_data;
++
++ return __cifs_readv_discard(server, mid, rdata->result);
++}
++
+ int
+ cifs_readv_receive(struct TCP_Server_Info *server, struct mid_q_entry *mid)
+ {
+@@ -1511,12 +1519,23 @@ cifs_readv_receive(struct TCP_Server_Info *server, struct mid_q_entry *mid)
+ return -1;
+ }
+
++ /* set up first two iov for signature check and to get credits */
++ rdata->iov[0].iov_base = buf;
++ rdata->iov[0].iov_len = 4;
++ rdata->iov[1].iov_base = buf + 4;
++ rdata->iov[1].iov_len = server->total_read - 4;
++ cifs_dbg(FYI, "0: iov_base=%p iov_len=%zu\n",
++ rdata->iov[0].iov_base, rdata->iov[0].iov_len);
++ cifs_dbg(FYI, "1: iov_base=%p iov_len=%zu\n",
++ rdata->iov[1].iov_base, rdata->iov[1].iov_len);
++
+ /* Was the SMB read successful? */
+ rdata->result = server->ops->map_error(buf, false);
+ if (rdata->result != 0) {
+ cifs_dbg(FYI, "%s: server returned error %d\n",
+ __func__, rdata->result);
+- return cifs_readv_discard(server, mid);
++ /* normal error on read response */
++ return __cifs_readv_discard(server, mid, false);
+ }
+
+ /* Is there enough to get to the rest of the READ_RSP header? */
+@@ -1560,14 +1579,6 @@ cifs_readv_receive(struct TCP_Server_Info *server, struct mid_q_entry *mid)
+ server->total_read += length;
+ }
+
+- /* set up first iov for signature check */
+- rdata->iov[0].iov_base = buf;
+- rdata->iov[0].iov_len = 4;
+- rdata->iov[1].iov_base = buf + 4;
+- rdata->iov[1].iov_len = server->total_read - 4;
+- cifs_dbg(FYI, "0: iov_base=%p iov_len=%u\n",
+- rdata->iov[0].iov_base, server->total_read);
+-
+ /* how much data is in the response? */
+ #ifdef CONFIG_CIFS_SMB_DIRECT
+ use_rdma_mr = rdata->mr;
+diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
+index 6f24f129a751..b83ab72cf855 100644
+--- a/fs/cifs/connect.c
++++ b/fs/cifs/connect.c
+@@ -534,6 +534,21 @@ server_unresponsive(struct TCP_Server_Info *server)
+ return false;
+ }
+
++static inline bool
++zero_credits(struct TCP_Server_Info *server)
++{
++ int val;
++
++ spin_lock(&server->req_lock);
++ val = server->credits + server->echo_credits + server->oplock_credits;
++ if (server->in_flight == 0 && val == 0) {
++ spin_unlock(&server->req_lock);
++ return true;
++ }
++ spin_unlock(&server->req_lock);
++ return false;
++}
++
+ static int
+ cifs_readv_from_socket(struct TCP_Server_Info *server, struct msghdr *smb_msg)
+ {
+@@ -546,6 +561,12 @@ cifs_readv_from_socket(struct TCP_Server_Info *server, struct msghdr *smb_msg)
+ for (total_read = 0; msg_data_left(smb_msg); total_read += length) {
+ try_to_freeze();
+
++ /* reconnect if no credits and no requests in flight */
++ if (zero_credits(server)) {
++ cifs_reconnect(server);
++ return -ECONNABORTED;
++ }
++
+ if (server_unresponsive(server))
+ return -ECONNABORTED;
+ if (cifs_rdma_enabled(server) && server->smbd_conn)
+diff --git a/fs/cifs/smb2misc.c b/fs/cifs/smb2misc.c
+index 6a9c47541c53..7b8b58fb4d3f 100644
+--- a/fs/cifs/smb2misc.c
++++ b/fs/cifs/smb2misc.c
+@@ -648,6 +648,13 @@ smb2_is_valid_oplock_break(char *buffer, struct TCP_Server_Info *server)
+ if (rsp->sync_hdr.Command != SMB2_OPLOCK_BREAK)
+ return false;
+
++ if (rsp->sync_hdr.CreditRequest) {
++ spin_lock(&server->req_lock);
++ server->credits += le16_to_cpu(rsp->sync_hdr.CreditRequest);
++ spin_unlock(&server->req_lock);
++ wake_up(&server->request_q);
++ }
++
+ if (rsp->StructureSize !=
+ smb2_rsp_struct_sizes[SMB2_OPLOCK_BREAK_HE]) {
+ if (le16_to_cpu(rsp->StructureSize) == 44)
+diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
+index 391b40e91910..d7dd7d38fad6 100644
+--- a/fs/cifs/smb2ops.c
++++ b/fs/cifs/smb2ops.c
+@@ -34,6 +34,7 @@
+ #include "cifs_ioctl.h"
+ #include "smbdirect.h"
+
++/* Change credits for different ops and return the total number of credits */
+ static int
+ change_conf(struct TCP_Server_Info *server)
+ {
+@@ -41,17 +42,15 @@ change_conf(struct TCP_Server_Info *server)
+ server->oplock_credits = server->echo_credits = 0;
+ switch (server->credits) {
+ case 0:
+- return -1;
++ return 0;
+ case 1:
+ server->echoes = false;
+ server->oplocks = false;
+- cifs_dbg(VFS, "disabling echoes and oplocks\n");
+ break;
+ case 2:
+ server->echoes = true;
+ server->oplocks = false;
+ server->echo_credits = 1;
+- cifs_dbg(FYI, "disabling oplocks\n");
+ break;
+ default:
+ server->echoes = true;
+@@ -64,14 +63,15 @@ change_conf(struct TCP_Server_Info *server)
+ server->echo_credits = 1;
+ }
+ server->credits -= server->echo_credits + server->oplock_credits;
+- return 0;
++ return server->credits + server->echo_credits + server->oplock_credits;
+ }
+
+ static void
+ smb2_add_credits(struct TCP_Server_Info *server, const unsigned int add,
+ const int optype)
+ {
+- int *val, rc = 0;
++ int *val, rc = -1;
++
+ spin_lock(&server->req_lock);
+ val = server->ops->get_credits_field(server, optype);
+
+@@ -101,8 +101,26 @@ smb2_add_credits(struct TCP_Server_Info *server, const unsigned int add,
+ }
+ spin_unlock(&server->req_lock);
+ wake_up(&server->request_q);
+- if (rc)
+- cifs_reconnect(server);
++
++ if (server->tcpStatus == CifsNeedReconnect)
++ return;
++
++ switch (rc) {
++ case -1:
++ /* change_conf hasn't been executed */
++ break;
++ case 0:
++ cifs_dbg(VFS, "Possible client or server bug - zero credits\n");
++ break;
++ case 1:
++ cifs_dbg(VFS, "disabling echoes and oplocks\n");
++ break;
++ case 2:
++ cifs_dbg(FYI, "disabling oplocks\n");
++ break;
++ default:
++ cifs_dbg(FYI, "add %u credits total=%d\n", add, rc);
++ }
+ }
+
+ static void
+@@ -165,14 +183,14 @@ smb2_wait_mtu_credits(struct TCP_Server_Info *server, unsigned int size,
+
+ scredits = server->credits;
+ /* can deadlock with reopen */
+- if (scredits == 1) {
++ if (scredits <= 8) {
+ *num = SMB2_MAX_BUFFER_SIZE;
+ *credits = 0;
+ break;
+ }
+
+- /* leave one credit for a possible reopen */
+- scredits--;
++ /* leave some credits for reopen and other ops */
++ scredits -= 8;
+ *num = min_t(unsigned int, size,
+ scredits * SMB2_MAX_BUFFER_SIZE);
+
+@@ -3101,11 +3119,23 @@ handle_read_data(struct TCP_Server_Info *server, struct mid_q_entry *mid,
+ server->ops->is_status_pending(buf, server, 0))
+ return -1;
+
+- rdata->result = server->ops->map_error(buf, false);
++ /* set up first two iov to get credits */
++ rdata->iov[0].iov_base = buf;
++ rdata->iov[0].iov_len = 4;
++ rdata->iov[1].iov_base = buf + 4;
++ rdata->iov[1].iov_len =
++ min_t(unsigned int, buf_len, server->vals->read_rsp_size) - 4;
++ cifs_dbg(FYI, "0: iov_base=%p iov_len=%zu\n",
++ rdata->iov[0].iov_base, rdata->iov[0].iov_len);
++ cifs_dbg(FYI, "1: iov_base=%p iov_len=%zu\n",
++ rdata->iov[1].iov_base, rdata->iov[1].iov_len);
++
++ rdata->result = server->ops->map_error(buf, true);
+ if (rdata->result != 0) {
+ cifs_dbg(FYI, "%s: server returned error %d\n",
+ __func__, rdata->result);
+- dequeue_mid(mid, rdata->result);
++ /* normal error on read response */
++ dequeue_mid(mid, false);
+ return 0;
+ }
+
+@@ -3178,14 +3208,6 @@ handle_read_data(struct TCP_Server_Info *server, struct mid_q_entry *mid,
+ return 0;
+ }
+
+- /* set up first iov for signature check */
+- rdata->iov[0].iov_base = buf;
+- rdata->iov[0].iov_len = 4;
+- rdata->iov[1].iov_base = buf + 4;
+- rdata->iov[1].iov_len = server->vals->read_rsp_size - 4;
+- cifs_dbg(FYI, "0: iov_base=%p iov_len=%zu\n",
+- rdata->iov[0].iov_base, server->vals->read_rsp_size);
+-
+ length = rdata->copy_into_pages(server, rdata, &iter);
+
+ kfree(bvec);
+diff --git a/fs/notify/inotify/inotify_user.c b/fs/notify/inotify/inotify_user.c
+index 105576daca4a..798f1253141a 100644
+--- a/fs/notify/inotify/inotify_user.c
++++ b/fs/notify/inotify/inotify_user.c
+@@ -724,8 +724,10 @@ SYSCALL_DEFINE3(inotify_add_watch, int, fd, const char __user *, pathname,
+ return -EBADF;
+
+ /* IN_MASK_ADD and IN_MASK_CREATE don't make sense together */
+- if (unlikely((mask & IN_MASK_ADD) && (mask & IN_MASK_CREATE)))
+- return -EINVAL;
++ if (unlikely((mask & IN_MASK_ADD) && (mask & IN_MASK_CREATE))) {
++ ret = -EINVAL;
++ goto fput_and_out;
++ }
+
+ /* verify that this is indeed an inotify instance */
+ if (unlikely(f.file->f_op != &inotify_fops)) {
+diff --git a/include/linux/bpf_verifier.h b/include/linux/bpf_verifier.h
+index d93e89761a8b..a6349a29748c 100644
+--- a/include/linux/bpf_verifier.h
++++ b/include/linux/bpf_verifier.h
+@@ -147,6 +147,7 @@ struct bpf_verifier_state {
+ /* call stack tracking */
+ struct bpf_func_state *frame[MAX_CALL_FRAMES];
+ u32 curframe;
++ bool speculative;
+ };
+
+ #define bpf_get_spilled_reg(slot, frame) \
+@@ -166,15 +167,25 @@ struct bpf_verifier_state_list {
+ struct bpf_verifier_state_list *next;
+ };
+
++/* Possible states for alu_state member. */
++#define BPF_ALU_SANITIZE_SRC 1U
++#define BPF_ALU_SANITIZE_DST 2U
++#define BPF_ALU_NEG_VALUE (1U << 2)
++#define BPF_ALU_NON_POINTER (1U << 3)
++#define BPF_ALU_SANITIZE (BPF_ALU_SANITIZE_SRC | \
++ BPF_ALU_SANITIZE_DST)
++
+ struct bpf_insn_aux_data {
+ union {
+ enum bpf_reg_type ptr_type; /* pointer type for load/store insns */
+ unsigned long map_state; /* pointer/poison value for maps */
+ s32 call_imm; /* saved imm field of call insn */
++ u32 alu_limit; /* limit for add/sub register with pointer */
+ };
+ int ctx_field_size; /* the ctx field size for load insn, maybe 0 */
+ int sanitize_stack_off; /* stack slot to be cleared */
+ bool seen; /* this insn was processed by the verifier */
++ u8 alu_state; /* used in combination with alu_limit */
+ };
+
+ #define MAX_USED_MAPS 64 /* max number of maps accessed by one eBPF program */
+@@ -210,6 +221,8 @@ struct bpf_subprog_info {
+ * one verifier_env per bpf_check() call
+ */
+ struct bpf_verifier_env {
++ u32 insn_idx;
++ u32 prev_insn_idx;
+ struct bpf_prog *prog; /* eBPF program being verified */
+ const struct bpf_verifier_ops *ops;
+ struct bpf_verifier_stack_elem *head; /* stack of verifier states to be processed */
+diff --git a/include/linux/filter.h b/include/linux/filter.h
+index 25a556589ae8..b776626aeb84 100644
+--- a/include/linux/filter.h
++++ b/include/linux/filter.h
+@@ -53,14 +53,10 @@ struct sock_reuseport;
+ #define BPF_REG_D BPF_REG_8 /* data, callee-saved */
+ #define BPF_REG_H BPF_REG_9 /* hlen, callee-saved */
+
+-/* Kernel hidden auxiliary/helper register for hardening step.
+- * Only used by eBPF JITs. It's nothing more than a temporary
+- * register that JITs use internally, only that here it's part
+- * of eBPF instructions that have been rewritten for blinding
+- * constants. See JIT pre-step in bpf_jit_blind_constants().
+- */
++/* Kernel hidden auxiliary/helper register. */
+ #define BPF_REG_AX MAX_BPF_REG
+-#define MAX_BPF_JIT_REG (MAX_BPF_REG + 1)
++#define MAX_BPF_EXT_REG (MAX_BPF_REG + 1)
++#define MAX_BPF_JIT_REG MAX_BPF_EXT_REG
+
+ /* unused opcode to mark special call to bpf_tail_call() helper */
+ #define BPF_TAIL_CALL 0xf0
+diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
+index 14131b6fae68..dcb6977afce9 100644
+--- a/include/linux/hyperv.h
++++ b/include/linux/hyperv.h
+@@ -830,15 +830,6 @@ struct vmbus_channel {
+ * All Sub-channels of a primary channel are linked here.
+ */
+ struct list_head sc_list;
+- /*
+- * Current number of sub-channels.
+- */
+- int num_sc;
+- /*
+- * Number of a sub-channel (position within sc_list) which is supposed
+- * to be used as the next outgoing channel.
+- */
+- int next_oc;
+ /*
+ * The primary channel this sub-channel belongs to.
+ * This will be NULL for the primary channel.
+@@ -972,14 +963,6 @@ void vmbus_set_sc_create_callback(struct vmbus_channel *primary_channel,
+ void vmbus_set_chn_rescind_callback(struct vmbus_channel *channel,
+ void (*chn_rescind_cb)(struct vmbus_channel *));
+
+-/*
+- * Retrieve the (sub) channel on which to send an outgoing request.
+- * When a primary channel has multiple sub-channels, we choose a
+- * channel whose VCPU binding is closest to the VCPU on which
+- * this call is being made.
+- */
+-struct vmbus_channel *vmbus_get_outgoing_channel(struct vmbus_channel *primary);
+-
+ /*
+ * Check if sub-channels have already been offerred. This API will be useful
+ * when the driver is unloaded after establishing sub-channels. In this case,
+@@ -1176,8 +1159,9 @@ struct hv_ring_buffer_debug_info {
+ u32 bytes_avail_towrite;
+ };
+
+-void hv_ringbuffer_get_debuginfo(const struct hv_ring_buffer_info *ring_info,
+- struct hv_ring_buffer_debug_info *debug_info);
++
++int hv_ringbuffer_get_debuginfo(const struct hv_ring_buffer_info *ring_info,
++ struct hv_ring_buffer_debug_info *debug_info);
+
+ /* Vmbus interface */
+ #define vmbus_driver_register(driver) \
+diff --git a/include/linux/phy.h b/include/linux/phy.h
+index 306630d13523..f5d4235e3844 100644
+--- a/include/linux/phy.h
++++ b/include/linux/phy.h
+@@ -502,8 +502,8 @@ struct phy_device {
+ * only works for PHYs with IDs which match this field
+ * name: The friendly name of this PHY type
+ * phy_id_mask: Defines the important bits of the phy_id
+- * features: A list of features (speed, duplex, etc) supported
+- * by this PHY
++ * features: A mandatory list of features (speed, duplex, etc)
++ * supported by this PHY
+ * flags: A bitfield defining certain other features this PHY
+ * supports (like interrupts)
+ *
+diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
+index 0d1b2c3f127b..a6d820ad17f0 100644
+--- a/include/linux/skbuff.h
++++ b/include/linux/skbuff.h
+@@ -3204,6 +3204,7 @@ int pskb_trim_rcsum_slow(struct sk_buff *skb, unsigned int len);
+ *
+ * This is exactly the same as pskb_trim except that it ensures the
+ * checksum of received packets are still valid after the operation.
++ * It can change skb pointers.
+ */
+
+ static inline int pskb_trim_rcsum(struct sk_buff *skb, unsigned int len)
+diff --git a/include/net/ip_fib.h b/include/net/ip_fib.h
+index c5969762a8f4..9c8214d2116d 100644
+--- a/include/net/ip_fib.h
++++ b/include/net/ip_fib.h
+@@ -241,7 +241,7 @@ int fib_table_delete(struct net *, struct fib_table *, struct fib_config *,
+ struct netlink_ext_ack *extack);
+ int fib_table_dump(struct fib_table *table, struct sk_buff *skb,
+ struct netlink_callback *cb, struct fib_dump_filter *filter);
+-int fib_table_flush(struct net *net, struct fib_table *table);
++int fib_table_flush(struct net *net, struct fib_table *table, bool flush_all);
+ struct fib_table *fib_trie_unmerge(struct fib_table *main_tb);
+ void fib_table_flush_external(struct fib_table *table);
+ void fib_free_table(struct fib_table *tb);
+diff --git a/include/uapi/linux/input.h b/include/uapi/linux/input.h
+index fb78f6f500f3..f056b2a00d5c 100644
+--- a/include/uapi/linux/input.h
++++ b/include/uapi/linux/input.h
+@@ -26,13 +26,17 @@
+ */
+
+ struct input_event {
+-#if (__BITS_PER_LONG != 32 || !defined(__USE_TIME_BITS64)) && !defined(__KERNEL)
++#if (__BITS_PER_LONG != 32 || !defined(__USE_TIME_BITS64)) && !defined(__KERNEL__)
+ struct timeval time;
+ #define input_event_sec time.tv_sec
+ #define input_event_usec time.tv_usec
+ #else
+ __kernel_ulong_t __sec;
++#if defined(__sparc__) && defined(__arch64__)
++ unsigned int __usec;
++#else
+ __kernel_ulong_t __usec;
++#endif
+ #define input_event_sec __sec
+ #define input_event_usec __usec
+ #endif
+diff --git a/kernel/bpf/core.c b/kernel/bpf/core.c
+index b2890c268cb3..ac44653025ad 100644
+--- a/kernel/bpf/core.c
++++ b/kernel/bpf/core.c
+@@ -52,6 +52,7 @@
+ #define DST regs[insn->dst_reg]
+ #define SRC regs[insn->src_reg]
+ #define FP regs[BPF_REG_FP]
++#define AX regs[BPF_REG_AX]
+ #define ARG1 regs[BPF_REG_ARG1]
+ #define CTX regs[BPF_REG_CTX]
+ #define IMM insn->imm
+@@ -726,6 +727,26 @@ static int bpf_jit_blind_insn(const struct bpf_insn *from,
+ BUILD_BUG_ON(BPF_REG_AX + 1 != MAX_BPF_JIT_REG);
+ BUILD_BUG_ON(MAX_BPF_REG + 1 != MAX_BPF_JIT_REG);
+
++ /* Constraints on AX register:
++ *
++ * AX register is inaccessible from user space. It is mapped in
++ * all JITs, and used here for constant blinding rewrites. It is
++ * typically "stateless" meaning its contents are only valid within
++ * the executed instruction, but not across several instructions.
++ * There are a few exceptions however which are further detailed
++ * below.
++ *
++ * Constant blinding is only used by JITs, not in the interpreter.
++ * The interpreter uses AX in some occasions as a local temporary
++ * register e.g. in DIV or MOD instructions.
++ *
++ * In restricted circumstances, the verifier can also use the AX
++ * register for rewrites as long as they do not interfere with
++ * the above cases!
++ */
++ if (from->dst_reg == BPF_REG_AX || from->src_reg == BPF_REG_AX)
++ goto out;
++
+ if (from->imm == 0 &&
+ (from->code == (BPF_ALU | BPF_MOV | BPF_K) ||
+ from->code == (BPF_ALU64 | BPF_MOV | BPF_K))) {
+@@ -1055,7 +1076,6 @@ bool bpf_opcode_in_insntable(u8 code)
+ */
+ static u64 ___bpf_prog_run(u64 *regs, const struct bpf_insn *insn, u64 *stack)
+ {
+- u64 tmp;
+ #define BPF_INSN_2_LBL(x, y) [BPF_##x | BPF_##y] = &&x##_##y
+ #define BPF_INSN_3_LBL(x, y, z) [BPF_##x | BPF_##y | BPF_##z] = &&x##_##y##_##z
+ static const void *jumptable[256] = {
+@@ -1129,36 +1149,36 @@ select_insn:
+ (*(s64 *) &DST) >>= IMM;
+ CONT;
+ ALU64_MOD_X:
+- div64_u64_rem(DST, SRC, &tmp);
+- DST = tmp;
++ div64_u64_rem(DST, SRC, &AX);
++ DST = AX;
+ CONT;
+ ALU_MOD_X:
+- tmp = (u32) DST;
+- DST = do_div(tmp, (u32) SRC);
++ AX = (u32) DST;
++ DST = do_div(AX, (u32) SRC);
+ CONT;
+ ALU64_MOD_K:
+- div64_u64_rem(DST, IMM, &tmp);
+- DST = tmp;
++ div64_u64_rem(DST, IMM, &AX);
++ DST = AX;
+ CONT;
+ ALU_MOD_K:
+- tmp = (u32) DST;
+- DST = do_div(tmp, (u32) IMM);
++ AX = (u32) DST;
++ DST = do_div(AX, (u32) IMM);
+ CONT;
+ ALU64_DIV_X:
+ DST = div64_u64(DST, SRC);
+ CONT;
+ ALU_DIV_X:
+- tmp = (u32) DST;
+- do_div(tmp, (u32) SRC);
+- DST = (u32) tmp;
++ AX = (u32) DST;
++ do_div(AX, (u32) SRC);
++ DST = (u32) AX;
+ CONT;
+ ALU64_DIV_K:
+ DST = div64_u64(DST, IMM);
+ CONT;
+ ALU_DIV_K:
+- tmp = (u32) DST;
+- do_div(tmp, (u32) IMM);
+- DST = (u32) tmp;
++ AX = (u32) DST;
++ do_div(AX, (u32) IMM);
++ DST = (u32) AX;
+ CONT;
+ ALU_END_TO_BE:
+ switch (IMM) {
+@@ -1414,7 +1434,7 @@ STACK_FRAME_NON_STANDARD(___bpf_prog_run); /* jump table */
+ static unsigned int PROG_NAME(stack_size)(const void *ctx, const struct bpf_insn *insn) \
+ { \
+ u64 stack[stack_size / sizeof(u64)]; \
+- u64 regs[MAX_BPF_REG]; \
++ u64 regs[MAX_BPF_EXT_REG]; \
+ \
+ FP = (u64) (unsigned long) &stack[ARRAY_SIZE(stack)]; \
+ ARG1 = (u64) (unsigned long) ctx; \
+@@ -1427,7 +1447,7 @@ static u64 PROG_NAME_ARGS(stack_size)(u64 r1, u64 r2, u64 r3, u64 r4, u64 r5, \
+ const struct bpf_insn *insn) \
+ { \
+ u64 stack[stack_size / sizeof(u64)]; \
+- u64 regs[MAX_BPF_REG]; \
++ u64 regs[MAX_BPF_EXT_REG]; \
+ \
+ FP = (u64) (unsigned long) &stack[ARRAY_SIZE(stack)]; \
+ BPF_R1 = r1; \
+diff --git a/kernel/bpf/map_in_map.c b/kernel/bpf/map_in_map.c
+index 99d243e1ad6e..52378d3e34b3 100644
+--- a/kernel/bpf/map_in_map.c
++++ b/kernel/bpf/map_in_map.c
+@@ -12,6 +12,7 @@
+ struct bpf_map *bpf_map_meta_alloc(int inner_map_ufd)
+ {
+ struct bpf_map *inner_map, *inner_map_meta;
++ u32 inner_map_meta_size;
+ struct fd f;
+
+ f = fdget(inner_map_ufd);
+@@ -36,7 +37,12 @@ struct bpf_map *bpf_map_meta_alloc(int inner_map_ufd)
+ return ERR_PTR(-EINVAL);
+ }
+
+- inner_map_meta = kzalloc(sizeof(*inner_map_meta), GFP_USER);
++ inner_map_meta_size = sizeof(*inner_map_meta);
++ /* In some cases verifier needs to access beyond just base map. */
++ if (inner_map->ops == &array_map_ops)
++ inner_map_meta_size = sizeof(struct bpf_array);
++
++ inner_map_meta = kzalloc(inner_map_meta_size, GFP_USER);
+ if (!inner_map_meta) {
+ fdput(f);
+ return ERR_PTR(-ENOMEM);
+@@ -46,9 +52,16 @@ struct bpf_map *bpf_map_meta_alloc(int inner_map_ufd)
+ inner_map_meta->key_size = inner_map->key_size;
+ inner_map_meta->value_size = inner_map->value_size;
+ inner_map_meta->map_flags = inner_map->map_flags;
+- inner_map_meta->ops = inner_map->ops;
+ inner_map_meta->max_entries = inner_map->max_entries;
+
++ /* Misc members not needed in bpf_map_meta_equal() check. */
++ inner_map_meta->ops = inner_map->ops;
++ if (inner_map->ops == &array_map_ops) {
++ inner_map_meta->unpriv_array = inner_map->unpriv_array;
++ container_of(inner_map_meta, struct bpf_array, map)->index_mask =
++ container_of(inner_map, struct bpf_array, map)->index_mask;
++ }
++
+ fdput(f);
+ return inner_map_meta;
+ }
+diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
+index eedc7bd4185d..e4c826229152 100644
+--- a/kernel/bpf/verifier.c
++++ b/kernel/bpf/verifier.c
+@@ -648,6 +648,7 @@ static int copy_verifier_state(struct bpf_verifier_state *dst_state,
+ free_func_state(dst_state->frame[i]);
+ dst_state->frame[i] = NULL;
+ }
++ dst_state->speculative = src->speculative;
+ dst_state->curframe = src->curframe;
+ for (i = 0; i <= src->curframe; i++) {
+ dst = dst_state->frame[i];
+@@ -692,7 +693,8 @@ static int pop_stack(struct bpf_verifier_env *env, int *prev_insn_idx,
+ }
+
+ static struct bpf_verifier_state *push_stack(struct bpf_verifier_env *env,
+- int insn_idx, int prev_insn_idx)
++ int insn_idx, int prev_insn_idx,
++ bool speculative)
+ {
+ struct bpf_verifier_state *cur = env->cur_state;
+ struct bpf_verifier_stack_elem *elem;
+@@ -710,6 +712,7 @@ static struct bpf_verifier_state *push_stack(struct bpf_verifier_env *env,
+ err = copy_verifier_state(&elem->st, cur);
+ if (err)
+ goto err;
++ elem->st.speculative |= speculative;
+ if (env->stack_size > BPF_COMPLEXITY_LIMIT_STACK) {
+ verbose(env, "BPF program is too complex\n");
+ goto err;
+@@ -1314,6 +1317,31 @@ static int check_stack_read(struct bpf_verifier_env *env,
+ }
+ }
+
++static int check_stack_access(struct bpf_verifier_env *env,
++ const struct bpf_reg_state *reg,
++ int off, int size)
++{
++ /* Stack accesses must be at a fixed offset, so that we
++ * can determine what type of data were returned. See
++ * check_stack_read().
++ */
++ if (!tnum_is_const(reg->var_off)) {
++ char tn_buf[48];
++
++ tnum_strn(tn_buf, sizeof(tn_buf), reg->var_off);
++ verbose(env, "variable stack access var_off=%s off=%d size=%d",
++ tn_buf, off, size);
++ return -EACCES;
++ }
++
++ if (off >= 0 || off < -MAX_BPF_STACK) {
++ verbose(env, "invalid stack off=%d size=%d\n", off, size);
++ return -EACCES;
++ }
++
++ return 0;
++}
++
+ /* check read/write into map element returned by bpf_map_lookup_elem() */
+ static int __check_map_access(struct bpf_verifier_env *env, u32 regno, int off,
+ int size, bool zero_size_allowed)
+@@ -1345,13 +1373,17 @@ static int check_map_access(struct bpf_verifier_env *env, u32 regno,
+ */
+ if (env->log.level)
+ print_verifier_state(env, state);
++
+ /* The minimum value is only important with signed
+ * comparisons where we can't assume the floor of a
+ * value is 0. If we are using signed variables for our
+ * index'es we need to make sure that whatever we use
+ * will have a set floor within our range.
+ */
+- if (reg->smin_value < 0) {
++ if (reg->smin_value < 0 &&
++ (reg->smin_value == S64_MIN ||
++ (off + reg->smin_value != (s64)(s32)(off + reg->smin_value)) ||
++ reg->smin_value + off < 0)) {
+ verbose(env, "R%d min value is negative, either use unsigned index or do a if (index >=0) check.\n",
+ regno);
+ return -EACCES;
+@@ -1870,24 +1902,10 @@ static int check_mem_access(struct bpf_verifier_env *env, int insn_idx, u32 regn
+ }
+
+ } else if (reg->type == PTR_TO_STACK) {
+- /* stack accesses must be at a fixed offset, so that we can
+- * determine what type of data were returned.
+- * See check_stack_read().
+- */
+- if (!tnum_is_const(reg->var_off)) {
+- char tn_buf[48];
+-
+- tnum_strn(tn_buf, sizeof(tn_buf), reg->var_off);
+- verbose(env, "variable stack access var_off=%s off=%d size=%d",
+- tn_buf, off, size);
+- return -EACCES;
+- }
+ off += reg->var_off.value;
+- if (off >= 0 || off < -MAX_BPF_STACK) {
+- verbose(env, "invalid stack off=%d size=%d\n", off,
+- size);
+- return -EACCES;
+- }
++ err = check_stack_access(env, reg, off, size);
++ if (err)
++ return err;
+
+ state = func(env, reg);
+ err = update_stack_depth(env, state, off);
+@@ -2968,6 +2986,125 @@ static bool check_reg_sane_offset(struct bpf_verifier_env *env,
+ return true;
+ }
+
++static struct bpf_insn_aux_data *cur_aux(struct bpf_verifier_env *env)
++{
++ return &env->insn_aux_data[env->insn_idx];
++}
++
++static int retrieve_ptr_limit(const struct bpf_reg_state *ptr_reg,
++ u32 *ptr_limit, u8 opcode, bool off_is_neg)
++{
++ bool mask_to_left = (opcode == BPF_ADD && off_is_neg) ||
++ (opcode == BPF_SUB && !off_is_neg);
++ u32 off;
++
++ switch (ptr_reg->type) {
++ case PTR_TO_STACK:
++ off = ptr_reg->off + ptr_reg->var_off.value;
++ if (mask_to_left)
++ *ptr_limit = MAX_BPF_STACK + off;
++ else
++ *ptr_limit = -off;
++ return 0;
++ case PTR_TO_MAP_VALUE:
++ if (mask_to_left) {
++ *ptr_limit = ptr_reg->umax_value + ptr_reg->off;
++ } else {
++ off = ptr_reg->smin_value + ptr_reg->off;
++ *ptr_limit = ptr_reg->map_ptr->value_size - off;
++ }
++ return 0;
++ default:
++ return -EINVAL;
++ }
++}
++
++static bool can_skip_alu_sanitation(const struct bpf_verifier_env *env,
++ const struct bpf_insn *insn)
++{
++ return env->allow_ptr_leaks || BPF_SRC(insn->code) == BPF_K;
++}
++
++static int update_alu_sanitation_state(struct bpf_insn_aux_data *aux,
++ u32 alu_state, u32 alu_limit)
++{
++ /* If we arrived here from different branches with different
++ * state or limits to sanitize, then this won't work.
++ */
++ if (aux->alu_state &&
++ (aux->alu_state != alu_state ||
++ aux->alu_limit != alu_limit))
++ return -EACCES;
++
++ /* Corresponding fixup done in fixup_bpf_calls(). */
++ aux->alu_state = alu_state;
++ aux->alu_limit = alu_limit;
++ return 0;
++}
++
++static int sanitize_val_alu(struct bpf_verifier_env *env,
++ struct bpf_insn *insn)
++{
++ struct bpf_insn_aux_data *aux = cur_aux(env);
++
++ if (can_skip_alu_sanitation(env, insn))
++ return 0;
++
++ return update_alu_sanitation_state(aux, BPF_ALU_NON_POINTER, 0);
++}
++
++static int sanitize_ptr_alu(struct bpf_verifier_env *env,
++ struct bpf_insn *insn,
++ const struct bpf_reg_state *ptr_reg,
++ struct bpf_reg_state *dst_reg,
++ bool off_is_neg)
++{
++ struct bpf_verifier_state *vstate = env->cur_state;
++ struct bpf_insn_aux_data *aux = cur_aux(env);
++ bool ptr_is_dst_reg = ptr_reg == dst_reg;
++ u8 opcode = BPF_OP(insn->code);
++ u32 alu_state, alu_limit;
++ struct bpf_reg_state tmp;
++ bool ret;
++
++ if (can_skip_alu_sanitation(env, insn))
++ return 0;
++
++ /* We already marked aux for masking from non-speculative
++ * paths, thus we got here in the first place. We only care
++ * to explore bad access from here.
++ */
++ if (vstate->speculative)
++ goto do_sim;
++
++ alu_state = off_is_neg ? BPF_ALU_NEG_VALUE : 0;
++ alu_state |= ptr_is_dst_reg ?
++ BPF_ALU_SANITIZE_SRC : BPF_ALU_SANITIZE_DST;
++
++ if (retrieve_ptr_limit(ptr_reg, &alu_limit, opcode, off_is_neg))
++ return 0;
++ if (update_alu_sanitation_state(aux, alu_state, alu_limit))
++ return -EACCES;
++do_sim:
++ /* Simulate and find potential out-of-bounds access under
++ * speculative execution from truncation as a result of
++ * masking when off was not within expected range. If off
++ * sits in dst, then we temporarily need to move ptr there
++ * to simulate dst (== 0) +/-= ptr. Needed, for example,
++ * for cases where we use K-based arithmetic in one direction
++ * and truncated reg-based in the other in order to explore
++ * bad access.
++ */
++ if (!ptr_is_dst_reg) {
++ tmp = *dst_reg;
++ *dst_reg = *ptr_reg;
++ }
++ ret = push_stack(env, env->insn_idx + 1, env->insn_idx, true);
++ if (!ptr_is_dst_reg)
++ *dst_reg = tmp;
++ return !ret ? -EFAULT : 0;
++}
++
+ /* Handles arithmetic on a pointer and a scalar: computes new min/max and var_off.
+ * Caller should also handle BPF_MOV case separately.
+ * If we return -EACCES, caller may want to try again treating pointer as a
+@@ -2986,8 +3123,9 @@ static int adjust_ptr_min_max_vals(struct bpf_verifier_env *env,
+ smin_ptr = ptr_reg->smin_value, smax_ptr = ptr_reg->smax_value;
+ u64 umin_val = off_reg->umin_value, umax_val = off_reg->umax_value,
+ umin_ptr = ptr_reg->umin_value, umax_ptr = ptr_reg->umax_value;
++ u32 dst = insn->dst_reg, src = insn->src_reg;
+ u8 opcode = BPF_OP(insn->code);
+- u32 dst = insn->dst_reg;
++ int ret;
+
+ dst_reg = &regs[dst];
+
+@@ -3020,6 +3158,13 @@ static int adjust_ptr_min_max_vals(struct bpf_verifier_env *env,
+ verbose(env, "R%d pointer arithmetic on %s prohibited\n",
+ dst, reg_type_str[ptr_reg->type]);
+ return -EACCES;
++ case PTR_TO_MAP_VALUE:
++ if (!env->allow_ptr_leaks && !known && (smin_val < 0) != (smax_val < 0)) {
++ verbose(env, "R%d has unknown scalar with mixed signed bounds, pointer arithmetic with it prohibited for !root\n",
++ off_reg == dst_reg ? dst : src);
++ return -EACCES;
++ }
++ /* fall-through */
+ default:
+ break;
+ }
+@@ -3036,6 +3181,11 @@ static int adjust_ptr_min_max_vals(struct bpf_verifier_env *env,
+
+ switch (opcode) {
+ case BPF_ADD:
++ ret = sanitize_ptr_alu(env, insn, ptr_reg, dst_reg, smin_val < 0);
++ if (ret < 0) {
++ verbose(env, "R%d tried to add from different maps or paths\n", dst);
++ return ret;
++ }
+ /* We can take a fixed offset as long as it doesn't overflow
+ * the s32 'off' field
+ */
+@@ -3086,6 +3236,11 @@ static int adjust_ptr_min_max_vals(struct bpf_verifier_env *env,
+ }
+ break;
+ case BPF_SUB:
++ ret = sanitize_ptr_alu(env, insn, ptr_reg, dst_reg, smin_val < 0);
++ if (ret < 0) {
++ verbose(env, "R%d tried to sub from different maps or paths\n", dst);
++ return ret;
++ }
+ if (dst_reg == off_reg) {
+ /* scalar -= pointer. Creates an unknown scalar */
+ verbose(env, "R%d tried to subtract pointer from scalar\n",
+@@ -3165,6 +3320,25 @@ static int adjust_ptr_min_max_vals(struct bpf_verifier_env *env,
+ __update_reg_bounds(dst_reg);
+ __reg_deduce_bounds(dst_reg);
+ __reg_bound_offset(dst_reg);
++
++ /* For unprivileged we require that resulting offset must be in bounds
++ * in order to be able to sanitize access later on.
++ */
++ if (!env->allow_ptr_leaks) {
++ if (dst_reg->type == PTR_TO_MAP_VALUE &&
++ check_map_access(env, dst, dst_reg->off, 1, false)) {
++ verbose(env, "R%d pointer arithmetic of map value goes out of range, "
++ "prohibited for !root\n", dst);
++ return -EACCES;
++ } else if (dst_reg->type == PTR_TO_STACK &&
++ check_stack_access(env, dst_reg, dst_reg->off +
++ dst_reg->var_off.value, 1)) {
++ verbose(env, "R%d stack pointer arithmetic goes out of range, "
++ "prohibited for !root\n", dst);
++ return -EACCES;
++ }
++ }
++
+ return 0;
+ }
+
+@@ -3183,6 +3357,8 @@ static int adjust_scalar_min_max_vals(struct bpf_verifier_env *env,
+ s64 smin_val, smax_val;
+ u64 umin_val, umax_val;
+ u64 insn_bitness = (BPF_CLASS(insn->code) == BPF_ALU64) ? 64 : 32;
++ u32 dst = insn->dst_reg;
++ int ret;
+
+ if (insn_bitness == 32) {
+ /* Relevant for 32-bit RSH: Information can propagate towards
+@@ -3217,6 +3393,11 @@ static int adjust_scalar_min_max_vals(struct bpf_verifier_env *env,
+
+ switch (opcode) {
+ case BPF_ADD:
++ ret = sanitize_val_alu(env, insn);
++ if (ret < 0) {
++ verbose(env, "R%d tried to add from different pointers or scalars\n", dst);
++ return ret;
++ }
+ if (signed_add_overflows(dst_reg->smin_value, smin_val) ||
+ signed_add_overflows(dst_reg->smax_value, smax_val)) {
+ dst_reg->smin_value = S64_MIN;
+@@ -3236,6 +3417,11 @@ static int adjust_scalar_min_max_vals(struct bpf_verifier_env *env,
+ dst_reg->var_off = tnum_add(dst_reg->var_off, src_reg.var_off);
+ break;
+ case BPF_SUB:
++ ret = sanitize_val_alu(env, insn);
++ if (ret < 0) {
++ verbose(env, "R%d tried to sub from different pointers or scalars\n", dst);
++ return ret;
++ }
+ if (signed_sub_overflows(dst_reg->smin_value, smax_val) ||
+ signed_sub_overflows(dst_reg->smax_value, smin_val)) {
+ /* Overflow possible, we know nothing */
+@@ -4249,7 +4435,8 @@ static int check_cond_jmp_op(struct bpf_verifier_env *env,
+ }
+ }
+
+- other_branch = push_stack(env, *insn_idx + insn->off + 1, *insn_idx);
++ other_branch = push_stack(env, *insn_idx + insn->off + 1, *insn_idx,
++ false);
+ if (!other_branch)
+ return -EFAULT;
+ other_branch_regs = other_branch->frame[other_branch->curframe]->regs;
+@@ -4990,6 +5177,12 @@ static bool states_equal(struct bpf_verifier_env *env,
+ if (old->curframe != cur->curframe)
+ return false;
+
++ /* Verification state from speculative execution simulation
++ * must never prune a non-speculative execution one.
++ */
++ if (old->speculative && !cur->speculative)
++ return false;
++
+ /* for states to be equal callsites have to be the same
+ * and all frame states need to be equivalent
+ */
+@@ -5180,7 +5373,6 @@ static int do_check(struct bpf_verifier_env *env)
+ struct bpf_insn *insns = env->prog->insnsi;
+ struct bpf_reg_state *regs;
+ int insn_cnt = env->prog->len, i;
+- int insn_idx, prev_insn_idx = 0;
+ int insn_processed = 0;
+ bool do_print_state = false;
+
+@@ -5188,6 +5380,7 @@ static int do_check(struct bpf_verifier_env *env)
+ if (!state)
+ return -ENOMEM;
+ state->curframe = 0;
++ state->speculative = false;
+ state->frame[0] = kzalloc(sizeof(struct bpf_func_state), GFP_KERNEL);
+ if (!state->frame[0]) {
+ kfree(state);
+@@ -5198,19 +5391,19 @@ static int do_check(struct bpf_verifier_env *env)
+ BPF_MAIN_FUNC /* callsite */,
+ 0 /* frameno */,
+ 0 /* subprogno, zero == main subprog */);
+- insn_idx = 0;
++
+ for (;;) {
+ struct bpf_insn *insn;
+ u8 class;
+ int err;
+
+- if (insn_idx >= insn_cnt) {
++ if (env->insn_idx >= insn_cnt) {
+ verbose(env, "invalid insn idx %d insn_cnt %d\n",
+- insn_idx, insn_cnt);
++ env->insn_idx, insn_cnt);
+ return -EFAULT;
+ }
+
+- insn = &insns[insn_idx];
++ insn = &insns[env->insn_idx];
+ class = BPF_CLASS(insn->code);
+
+ if (++insn_processed > BPF_COMPLEXITY_LIMIT_INSNS) {
+@@ -5220,17 +5413,19 @@ static int do_check(struct bpf_verifier_env *env)
+ return -E2BIG;
+ }
+
+- err = is_state_visited(env, insn_idx);
++ err = is_state_visited(env, env->insn_idx);
+ if (err < 0)
+ return err;
+ if (err == 1) {
+ /* found equivalent state, can prune the search */
+ if (env->log.level) {
+ if (do_print_state)
+- verbose(env, "\nfrom %d to %d: safe\n",
+- prev_insn_idx, insn_idx);
++ verbose(env, "\nfrom %d to %d%s: safe\n",
++ env->prev_insn_idx, env->insn_idx,
++ env->cur_state->speculative ?
++ " (speculative execution)" : "");
+ else
+- verbose(env, "%d: safe\n", insn_idx);
++ verbose(env, "%d: safe\n", env->insn_idx);
+ }
+ goto process_bpf_exit;
+ }
+@@ -5243,10 +5438,12 @@ static int do_check(struct bpf_verifier_env *env)
+
+ if (env->log.level > 1 || (env->log.level && do_print_state)) {
+ if (env->log.level > 1)
+- verbose(env, "%d:", insn_idx);
++ verbose(env, "%d:", env->insn_idx);
+ else
+- verbose(env, "\nfrom %d to %d:",
+- prev_insn_idx, insn_idx);
++ verbose(env, "\nfrom %d to %d%s:",
++ env->prev_insn_idx, env->insn_idx,
++ env->cur_state->speculative ?
++ " (speculative execution)" : "");
+ print_verifier_state(env, state->frame[state->curframe]);
+ do_print_state = false;
+ }
+@@ -5257,19 +5454,19 @@ static int do_check(struct bpf_verifier_env *env)
+ .private_data = env,
+ };
+
+- verbose(env, "%d: ", insn_idx);
++ verbose(env, "%d: ", env->insn_idx);
+ print_bpf_insn(&cbs, insn, env->allow_ptr_leaks);
+ }
+
+ if (bpf_prog_is_dev_bound(env->prog->aux)) {
+- err = bpf_prog_offload_verify_insn(env, insn_idx,
+- prev_insn_idx);
++ err = bpf_prog_offload_verify_insn(env, env->insn_idx,
++ env->prev_insn_idx);
+ if (err)
+ return err;
+ }
+
+ regs = cur_regs(env);
+- env->insn_aux_data[insn_idx].seen = true;
++ env->insn_aux_data[env->insn_idx].seen = true;
+
+ if (class == BPF_ALU || class == BPF_ALU64) {
+ err = check_alu_op(env, insn);
+@@ -5295,13 +5492,13 @@ static int do_check(struct bpf_verifier_env *env)
+ /* check that memory (src_reg + off) is readable,
+ * the state of dst_reg will be updated by this func
+ */
+- err = check_mem_access(env, insn_idx, insn->src_reg, insn->off,
+- BPF_SIZE(insn->code), BPF_READ,
+- insn->dst_reg, false);
++ err = check_mem_access(env, env->insn_idx, insn->src_reg,
++ insn->off, BPF_SIZE(insn->code),
++ BPF_READ, insn->dst_reg, false);
+ if (err)
+ return err;
+
+- prev_src_type = &env->insn_aux_data[insn_idx].ptr_type;
++ prev_src_type = &env->insn_aux_data[env->insn_idx].ptr_type;
+
+ if (*prev_src_type == NOT_INIT) {
+ /* saw a valid insn
+@@ -5326,10 +5523,10 @@ static int do_check(struct bpf_verifier_env *env)
+ enum bpf_reg_type *prev_dst_type, dst_reg_type;
+
+ if (BPF_MODE(insn->code) == BPF_XADD) {
+- err = check_xadd(env, insn_idx, insn);
++ err = check_xadd(env, env->insn_idx, insn);
+ if (err)
+ return err;
+- insn_idx++;
++ env->insn_idx++;
+ continue;
+ }
+
+@@ -5345,13 +5542,13 @@ static int do_check(struct bpf_verifier_env *env)
+ dst_reg_type = regs[insn->dst_reg].type;
+
+ /* check that memory (dst_reg + off) is writeable */
+- err = check_mem_access(env, insn_idx, insn->dst_reg, insn->off,
+- BPF_SIZE(insn->code), BPF_WRITE,
+- insn->src_reg, false);
++ err = check_mem_access(env, env->insn_idx, insn->dst_reg,
++ insn->off, BPF_SIZE(insn->code),
++ BPF_WRITE, insn->src_reg, false);
+ if (err)
+ return err;
+
+- prev_dst_type = &env->insn_aux_data[insn_idx].ptr_type;
++ prev_dst_type = &env->insn_aux_data[env->insn_idx].ptr_type;
+
+ if (*prev_dst_type == NOT_INIT) {
+ *prev_dst_type = dst_reg_type;
+@@ -5379,9 +5576,9 @@ static int do_check(struct bpf_verifier_env *env)
+ }
+
+ /* check that memory (dst_reg + off) is writeable */
+- err = check_mem_access(env, insn_idx, insn->dst_reg, insn->off,
+- BPF_SIZE(insn->code), BPF_WRITE,
+- -1, false);
++ err = check_mem_access(env, env->insn_idx, insn->dst_reg,
++ insn->off, BPF_SIZE(insn->code),
++ BPF_WRITE, -1, false);
+ if (err)
+ return err;
+
+@@ -5399,9 +5596,9 @@ static int do_check(struct bpf_verifier_env *env)
+ }
+
+ if (insn->src_reg == BPF_PSEUDO_CALL)
+- err = check_func_call(env, insn, &insn_idx);
++ err = check_func_call(env, insn, &env->insn_idx);
+ else
+- err = check_helper_call(env, insn->imm, insn_idx);
++ err = check_helper_call(env, insn->imm, env->insn_idx);
+ if (err)
+ return err;
+
+@@ -5414,7 +5611,7 @@ static int do_check(struct bpf_verifier_env *env)
+ return -EINVAL;
+ }
+
+- insn_idx += insn->off + 1;
++ env->insn_idx += insn->off + 1;
+ continue;
+
+ } else if (opcode == BPF_EXIT) {
+@@ -5428,8 +5625,8 @@ static int do_check(struct bpf_verifier_env *env)
+
+ if (state->curframe) {
+ /* exit from nested function */
+- prev_insn_idx = insn_idx;
+- err = prepare_func_exit(env, &insn_idx);
++ env->prev_insn_idx = env->insn_idx;
++ err = prepare_func_exit(env, &env->insn_idx);
+ if (err)
+ return err;
+ do_print_state = true;
+@@ -5459,7 +5656,8 @@ static int do_check(struct bpf_verifier_env *env)
+ if (err)
+ return err;
+ process_bpf_exit:
+- err = pop_stack(env, &prev_insn_idx, &insn_idx);
++ err = pop_stack(env, &env->prev_insn_idx,
++ &env->insn_idx);
+ if (err < 0) {
+ if (err != -ENOENT)
+ return err;
+@@ -5469,7 +5667,7 @@ process_bpf_exit:
+ continue;
+ }
+ } else {
+- err = check_cond_jmp_op(env, insn, &insn_idx);
++ err = check_cond_jmp_op(env, insn, &env->insn_idx);
+ if (err)
+ return err;
+ }
+@@ -5486,8 +5684,8 @@ process_bpf_exit:
+ if (err)
+ return err;
+
+- insn_idx++;
+- env->insn_aux_data[insn_idx].seen = true;
++ env->insn_idx++;
++ env->insn_aux_data[env->insn_idx].seen = true;
+ } else {
+ verbose(env, "invalid BPF_LD mode\n");
+ return -EINVAL;
+@@ -5497,7 +5695,7 @@ process_bpf_exit:
+ return -EINVAL;
+ }
+
+- insn_idx++;
++ env->insn_idx++;
+ }
+
+ verbose(env, "processed %d insns (limit %d), stack depth ",
+@@ -6220,6 +6418,57 @@ static int fixup_bpf_calls(struct bpf_verifier_env *env)
+ continue;
+ }
+
++ if (insn->code == (BPF_ALU64 | BPF_ADD | BPF_X) ||
++ insn->code == (BPF_ALU64 | BPF_SUB | BPF_X)) {
++ const u8 code_add = BPF_ALU64 | BPF_ADD | BPF_X;
++ const u8 code_sub = BPF_ALU64 | BPF_SUB | BPF_X;
++ struct bpf_insn insn_buf[16];
++ struct bpf_insn *patch = &insn_buf[0];
++ bool issrc, isneg;
++ u32 off_reg;
++
++ aux = &env->insn_aux_data[i + delta];
++ if (!aux->alu_state)
++ continue;
++
++ isneg = aux->alu_state & BPF_ALU_NEG_VALUE;
++ issrc = (aux->alu_state & BPF_ALU_SANITIZE) ==
++ BPF_ALU_SANITIZE_SRC;
++
++ off_reg = issrc ? insn->src_reg : insn->dst_reg;
++ if (isneg)
++ *patch++ = BPF_ALU64_IMM(BPF_MUL, off_reg, -1);
++ *patch++ = BPF_MOV32_IMM(BPF_REG_AX, aux->alu_limit - 1);
++ *patch++ = BPF_ALU64_REG(BPF_SUB, BPF_REG_AX, off_reg);
++ *patch++ = BPF_ALU64_REG(BPF_OR, BPF_REG_AX, off_reg);
++ *patch++ = BPF_ALU64_IMM(BPF_NEG, BPF_REG_AX, 0);
++ *patch++ = BPF_ALU64_IMM(BPF_ARSH, BPF_REG_AX, 63);
++ if (issrc) {
++ *patch++ = BPF_ALU64_REG(BPF_AND, BPF_REG_AX,
++ off_reg);
++ insn->src_reg = BPF_REG_AX;
++ } else {
++ *patch++ = BPF_ALU64_REG(BPF_AND, off_reg,
++ BPF_REG_AX);
++ }
++ if (isneg)
++ insn->code = insn->code == code_add ?
++ code_sub : code_add;
++ *patch++ = *insn;
++ if (issrc && isneg)
++ *patch++ = BPF_ALU64_IMM(BPF_MUL, off_reg, -1);
++ cnt = patch - insn_buf;
++
++ new_prog = bpf_patch_insn_data(env, i + delta, insn_buf, cnt);
++ if (!new_prog)
++ return -ENOMEM;
++
++ delta += cnt - 1;
++ env->prog = prog = new_prog;
++ insn = new_prog->insnsi + i + delta;
++ continue;
++ }
++
+ if (insn->code != (BPF_JMP | BPF_CALL))
+ continue;
+ if (insn->src_reg == BPF_PSEUDO_CALL)
+diff --git a/kernel/time/posix-cpu-timers.c b/kernel/time/posix-cpu-timers.c
+index 8f0644af40be..80f955210861 100644
+--- a/kernel/time/posix-cpu-timers.c
++++ b/kernel/time/posix-cpu-timers.c
+@@ -685,6 +685,7 @@ static int posix_cpu_timer_set(struct k_itimer *timer, int timer_flags,
+ * set up the signal and overrun bookkeeping.
+ */
+ timer->it.cpu.incr = timespec64_to_ns(&new->it_interval);
++ timer->it_interval = ns_to_ktime(timer->it.cpu.incr);
+
+ /*
+ * This acts as a modification timestamp for the timer,
+diff --git a/mm/page_alloc.c b/mm/page_alloc.c
+index e95b5b7c9c3d..995d1079f958 100644
+--- a/mm/page_alloc.c
++++ b/mm/page_alloc.c
+@@ -5542,18 +5542,6 @@ void __meminit memmap_init_zone(unsigned long size, int nid, unsigned long zone,
+ cond_resched();
+ }
+ }
+-#ifdef CONFIG_SPARSEMEM
+- /*
+- * If the zone does not span the rest of the section then
+- * we should at least initialize those pages. Otherwise we
+- * could blow up on a poisoned page in some paths which depend
+- * on full sections being initialized (e.g. memory hotplug).
+- */
+- while (end_pfn % PAGES_PER_SECTION) {
+- __init_single_page(pfn_to_page(end_pfn), end_pfn, zone, nid);
+- end_pfn++;
+- }
+-#endif
+ }
+
+ #ifdef CONFIG_ZONE_DEVICE
+diff --git a/net/bridge/br_forward.c b/net/bridge/br_forward.c
+index 2cb8da465b98..48ddc60b4fbd 100644
+--- a/net/bridge/br_forward.c
++++ b/net/bridge/br_forward.c
+@@ -36,10 +36,10 @@ static inline int should_deliver(const struct net_bridge_port *p,
+
+ int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb)
+ {
++ skb_push(skb, ETH_HLEN);
+ if (!is_skb_forwardable(skb->dev, skb))
+ goto drop;
+
+- skb_push(skb, ETH_HLEN);
+ br_drop_fake_rtable(skb);
+
+ if (skb->ip_summed == CHECKSUM_PARTIAL &&
+@@ -98,12 +98,11 @@ static void __br_forward(const struct net_bridge_port *to,
+ net = dev_net(indev);
+ } else {
+ if (unlikely(netpoll_tx_running(to->br->dev))) {
+- if (!is_skb_forwardable(skb->dev, skb)) {
++ skb_push(skb, ETH_HLEN);
++ if (!is_skb_forwardable(skb->dev, skb))
+ kfree_skb(skb);
+- } else {
+- skb_push(skb, ETH_HLEN);
++ else
+ br_netpoll_send_skb(to, skb);
+- }
+ return;
+ }
+ br_hook = NF_BR_LOCAL_OUT;
+diff --git a/net/bridge/br_netfilter_ipv6.c b/net/bridge/br_netfilter_ipv6.c
+index 96c072e71ea2..5811208863b7 100644
+--- a/net/bridge/br_netfilter_ipv6.c
++++ b/net/bridge/br_netfilter_ipv6.c
+@@ -131,6 +131,7 @@ int br_validate_ipv6(struct net *net, struct sk_buff *skb)
+ IPSTATS_MIB_INDISCARDS);
+ goto drop;
+ }
++ hdr = ipv6_hdr(skb);
+ }
+ if (hdr->nexthdr == NEXTHDR_HOP && br_nf_check_hbh_len(skb))
+ goto drop;
+diff --git a/net/bridge/netfilter/nft_reject_bridge.c b/net/bridge/netfilter/nft_reject_bridge.c
+index 08cbed7d940e..419e8edf23ba 100644
+--- a/net/bridge/netfilter/nft_reject_bridge.c
++++ b/net/bridge/netfilter/nft_reject_bridge.c
+@@ -229,6 +229,7 @@ static bool reject6_br_csum_ok(struct sk_buff *skb, int hook)
+ pskb_trim_rcsum(skb, ntohs(ip6h->payload_len) + sizeof(*ip6h)))
+ return false;
+
++ ip6h = ipv6_hdr(skb);
+ thoff = ipv6_skip_exthdr(skb, ((u8*)(ip6h+1) - skb->data), &proto, &fo);
+ if (thoff < 0 || thoff >= skb->len || (fo & htons(~0x7)) != 0)
+ return false;
+diff --git a/net/can/bcm.c b/net/can/bcm.c
+index 0af8f0db892a..79bb8afa9c0c 100644
+--- a/net/can/bcm.c
++++ b/net/can/bcm.c
+@@ -67,6 +67,9 @@
+ */
+ #define MAX_NFRAMES 256
+
++/* limit timers to 400 days for sending/timeouts */
++#define BCM_TIMER_SEC_MAX (400 * 24 * 60 * 60)
++
+ /* use of last_frames[index].flags */
+ #define RX_RECV 0x40 /* received data for this element */
+ #define RX_THR 0x80 /* element not been sent due to throttle feature */
+@@ -140,6 +143,22 @@ static inline ktime_t bcm_timeval_to_ktime(struct bcm_timeval tv)
+ return ktime_set(tv.tv_sec, tv.tv_usec * NSEC_PER_USEC);
+ }
+
++/* check limitations for timeval provided by user */
++static bool bcm_is_invalid_tv(struct bcm_msg_head *msg_head)
++{
++ if ((msg_head->ival1.tv_sec < 0) ||
++ (msg_head->ival1.tv_sec > BCM_TIMER_SEC_MAX) ||
++ (msg_head->ival1.tv_usec < 0) ||
++ (msg_head->ival1.tv_usec >= USEC_PER_SEC) ||
++ (msg_head->ival2.tv_sec < 0) ||
++ (msg_head->ival2.tv_sec > BCM_TIMER_SEC_MAX) ||
++ (msg_head->ival2.tv_usec < 0) ||
++ (msg_head->ival2.tv_usec >= USEC_PER_SEC))
++ return true;
++
++ return false;
++}
++
+ #define CFSIZ(flags) ((flags & CAN_FD_FRAME) ? CANFD_MTU : CAN_MTU)
+ #define OPSIZ sizeof(struct bcm_op)
+ #define MHSIZ sizeof(struct bcm_msg_head)
+@@ -873,6 +892,10 @@ static int bcm_tx_setup(struct bcm_msg_head *msg_head, struct msghdr *msg,
+ if (msg_head->nframes < 1 || msg_head->nframes > MAX_NFRAMES)
+ return -EINVAL;
+
++ /* check timeval limitations */
++ if ((msg_head->flags & SETTIMER) && bcm_is_invalid_tv(msg_head))
++ return -EINVAL;
++
+ /* check the given can_id */
+ op = bcm_find_op(&bo->tx_ops, msg_head, ifindex);
+ if (op) {
+@@ -1053,6 +1076,10 @@ static int bcm_rx_setup(struct bcm_msg_head *msg_head, struct msghdr *msg,
+ (!(msg_head->can_id & CAN_RTR_FLAG))))
+ return -EINVAL;
+
++ /* check timeval limitations */
++ if ((msg_head->flags & SETTIMER) && bcm_is_invalid_tv(msg_head))
++ return -EINVAL;
++
+ /* check the given can_id */
+ op = bcm_find_op(&bo->rx_ops, msg_head, ifindex);
+ if (op) {
+diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
+index 6df95be96311..fe4f6a624238 100644
+--- a/net/ipv4/fib_frontend.c
++++ b/net/ipv4/fib_frontend.c
+@@ -203,7 +203,7 @@ static void fib_flush(struct net *net)
+ struct fib_table *tb;
+
+ hlist_for_each_entry_safe(tb, tmp, head, tb_hlist)
+- flushed += fib_table_flush(net, tb);
++ flushed += fib_table_flush(net, tb, false);
+ }
+
+ if (flushed)
+@@ -1463,7 +1463,7 @@ static void ip_fib_net_exit(struct net *net)
+
+ hlist_for_each_entry_safe(tb, tmp, head, tb_hlist) {
+ hlist_del(&tb->tb_hlist);
+- fib_table_flush(net, tb);
++ fib_table_flush(net, tb, true);
+ fib_free_table(tb);
+ }
+ }
+diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
+index 237c9f72b265..a573e37e0615 100644
+--- a/net/ipv4/fib_trie.c
++++ b/net/ipv4/fib_trie.c
+@@ -1856,7 +1856,7 @@ void fib_table_flush_external(struct fib_table *tb)
+ }
+
+ /* Caller must hold RTNL. */
+-int fib_table_flush(struct net *net, struct fib_table *tb)
++int fib_table_flush(struct net *net, struct fib_table *tb, bool flush_all)
+ {
+ struct trie *t = (struct trie *)tb->tb_data;
+ struct key_vector *pn = t->kv;
+@@ -1904,8 +1904,17 @@ int fib_table_flush(struct net *net, struct fib_table *tb)
+ hlist_for_each_entry_safe(fa, tmp, &n->leaf, fa_list) {
+ struct fib_info *fi = fa->fa_info;
+
+- if (!fi || !(fi->fib_flags & RTNH_F_DEAD) ||
+- tb->tb_id != fa->tb_id) {
++ if (!fi || tb->tb_id != fa->tb_id ||
++ (!(fi->fib_flags & RTNH_F_DEAD) &&
++ !fib_props[fa->fa_type].error)) {
++ slen = fa->fa_slen;
++ continue;
++ }
++
++ /* Do not flush error routes if network namespace is
++ * not being dismantled
++ */
++ if (!flush_all && fib_props[fa->fa_type].error) {
+ slen = fa->fa_slen;
+ continue;
+ }
+diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
+index 0fe9419bd12b..3407a82d4549 100644
+--- a/net/ipv4/ip_gre.c
++++ b/net/ipv4/ip_gre.c
+@@ -567,8 +567,7 @@ err_free_skb:
+ dev->stats.tx_dropped++;
+ }
+
+-static void erspan_fb_xmit(struct sk_buff *skb, struct net_device *dev,
+- __be16 proto)
++static void erspan_fb_xmit(struct sk_buff *skb, struct net_device *dev)
+ {
+ struct ip_tunnel *tunnel = netdev_priv(dev);
+ struct ip_tunnel_info *tun_info;
+@@ -576,10 +575,10 @@ static void erspan_fb_xmit(struct sk_buff *skb, struct net_device *dev,
+ struct erspan_metadata *md;
+ struct rtable *rt = NULL;
+ bool truncate = false;
++ __be16 df, proto;
+ struct flowi4 fl;
+ int tunnel_hlen;
+ int version;
+- __be16 df;
+ int nhoff;
+ int thoff;
+
+@@ -624,18 +623,20 @@ static void erspan_fb_xmit(struct sk_buff *skb, struct net_device *dev,
+ if (version == 1) {
+ erspan_build_header(skb, ntohl(tunnel_id_to_key32(key->tun_id)),
+ ntohl(md->u.index), truncate, true);
++ proto = htons(ETH_P_ERSPAN);
+ } else if (version == 2) {
+ erspan_build_header_v2(skb,
+ ntohl(tunnel_id_to_key32(key->tun_id)),
+ md->u.md2.dir,
+ get_hwid(&md->u.md2),
+ truncate, true);
++ proto = htons(ETH_P_ERSPAN2);
+ } else {
+ goto err_free_rt;
+ }
+
+ gre_build_header(skb, 8, TUNNEL_SEQ,
+- htons(ETH_P_ERSPAN), 0, htonl(tunnel->o_seqno++));
++ proto, 0, htonl(tunnel->o_seqno++));
+
+ df = key->tun_flags & TUNNEL_DONT_FRAGMENT ? htons(IP_DF) : 0;
+
+@@ -719,12 +720,13 @@ static netdev_tx_t erspan_xmit(struct sk_buff *skb,
+ {
+ struct ip_tunnel *tunnel = netdev_priv(dev);
+ bool truncate = false;
++ __be16 proto;
+
+ if (!pskb_inet_may_pull(skb))
+ goto free_skb;
+
+ if (tunnel->collect_md) {
+- erspan_fb_xmit(skb, dev, skb->protocol);
++ erspan_fb_xmit(skb, dev);
+ return NETDEV_TX_OK;
+ }
+
+@@ -740,19 +742,22 @@ static netdev_tx_t erspan_xmit(struct sk_buff *skb,
+ }
+
+ /* Push ERSPAN header */
+- if (tunnel->erspan_ver == 1)
++ if (tunnel->erspan_ver == 1) {
+ erspan_build_header(skb, ntohl(tunnel->parms.o_key),
+ tunnel->index,
+ truncate, true);
+- else if (tunnel->erspan_ver == 2)
++ proto = htons(ETH_P_ERSPAN);
++ } else if (tunnel->erspan_ver == 2) {
+ erspan_build_header_v2(skb, ntohl(tunnel->parms.o_key),
+ tunnel->dir, tunnel->hwid,
+ truncate, true);
+- else
++ proto = htons(ETH_P_ERSPAN2);
++ } else {
+ goto free_skb;
++ }
+
+ tunnel->parms.o_flags &= ~TUNNEL_KEY;
+- __gre_xmit(skb, dev, &tunnel->parms.iph, htons(ETH_P_ERSPAN));
++ __gre_xmit(skb, dev, &tunnel->parms.iph, proto);
+ return NETDEV_TX_OK;
+
+ free_skb:
+diff --git a/net/ipv4/ip_input.c b/net/ipv4/ip_input.c
+index e609b08c9df4..3163428219cd 100644
+--- a/net/ipv4/ip_input.c
++++ b/net/ipv4/ip_input.c
+@@ -489,6 +489,7 @@ static struct sk_buff *ip_rcv_core(struct sk_buff *skb, struct net *net)
+ goto drop;
+ }
+
++ iph = ip_hdr(skb);
+ skb->transport_header = skb->network_header + iph->ihl*4;
+
+ /* Remove any debris in the socket control block */
+diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
+index 9e6bc4d6daa7..40cbe5609663 100644
+--- a/net/ipv4/tcp.c
++++ b/net/ipv4/tcp.c
+@@ -1186,7 +1186,7 @@ int tcp_sendmsg_locked(struct sock *sk, struct msghdr *msg, size_t size)
+ flags = msg->msg_flags;
+
+ if (flags & MSG_ZEROCOPY && size && sock_flag(sk, SOCK_ZEROCOPY)) {
+- if (sk->sk_state != TCP_ESTABLISHED) {
++ if ((1 << sk->sk_state) & ~(TCPF_ESTABLISHED | TCPF_CLOSE_WAIT)) {
+ err = -EINVAL;
+ goto out_err;
+ }
+diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
+index 1976fddb9e00..ce125f4dc810 100644
+--- a/net/ipv4/udp.c
++++ b/net/ipv4/udp.c
+@@ -785,15 +785,23 @@ static int udp_send_skb(struct sk_buff *skb, struct flowi4 *fl4,
+ const int hlen = skb_network_header_len(skb) +
+ sizeof(struct udphdr);
+
+- if (hlen + cork->gso_size > cork->fragsize)
++ if (hlen + cork->gso_size > cork->fragsize) {
++ kfree_skb(skb);
+ return -EINVAL;
+- if (skb->len > cork->gso_size * UDP_MAX_SEGMENTS)
++ }
++ if (skb->len > cork->gso_size * UDP_MAX_SEGMENTS) {
++ kfree_skb(skb);
+ return -EINVAL;
+- if (sk->sk_no_check_tx)
++ }
++ if (sk->sk_no_check_tx) {
++ kfree_skb(skb);
+ return -EINVAL;
++ }
+ if (skb->ip_summed != CHECKSUM_PARTIAL || is_udplite ||
+- dst_xfrm(skb_dst(skb)))
++ dst_xfrm(skb_dst(skb))) {
++ kfree_skb(skb);
+ return -EIO;
++ }
+
+ skb_shinfo(skb)->gso_size = cork->gso_size;
+ skb_shinfo(skb)->gso_type = SKB_GSO_UDP_L4;
+diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c
+index 0f7d434c1eed..b529a79ac222 100644
+--- a/net/ipv6/ip6_gre.c
++++ b/net/ipv6/ip6_gre.c
+@@ -920,6 +920,7 @@ static netdev_tx_t ip6erspan_tunnel_xmit(struct sk_buff *skb,
+ __u8 dsfield = false;
+ struct flowi6 fl6;
+ int err = -EINVAL;
++ __be16 proto;
+ __u32 mtu;
+ int nhoff;
+ int thoff;
+@@ -1033,8 +1034,9 @@ static netdev_tx_t ip6erspan_tunnel_xmit(struct sk_buff *skb,
+ }
+
+ /* Push GRE header. */
+- gre_build_header(skb, 8, TUNNEL_SEQ,
+- htons(ETH_P_ERSPAN), 0, htonl(t->o_seqno++));
++ proto = (t->parms.erspan_ver == 1) ? htons(ETH_P_ERSPAN)
++ : htons(ETH_P_ERSPAN2);
++ gre_build_header(skb, 8, TUNNEL_SEQ, proto, 0, htonl(t->o_seqno++));
+
+ /* TooBig packet may have updated dst->dev's mtu */
+ if (!t->parms.collect_md && dst && dst_mtu(dst) > dst->dev->mtu)
+@@ -1167,6 +1169,10 @@ static void ip6gre_tnl_copy_tnl_parm(struct ip6_tnl *t,
+ t->parms.i_flags = p->i_flags;
+ t->parms.o_flags = p->o_flags;
+ t->parms.fwmark = p->fwmark;
++ t->parms.erspan_ver = p->erspan_ver;
++ t->parms.index = p->index;
++ t->parms.dir = p->dir;
++ t->parms.hwid = p->hwid;
+ dst_cache_reset(&t->dst_cache);
+ }
+
+@@ -2029,9 +2035,9 @@ static int ip6gre_changelink(struct net_device *dev, struct nlattr *tb[],
+ struct nlattr *data[],
+ struct netlink_ext_ack *extack)
+ {
+- struct ip6gre_net *ign = net_generic(dev_net(dev), ip6gre_net_id);
++ struct ip6_tnl *t = netdev_priv(dev);
++ struct ip6gre_net *ign = net_generic(t->net, ip6gre_net_id);
+ struct __ip6_tnl_parm p;
+- struct ip6_tnl *t;
+
+ t = ip6gre_changelink_common(dev, tb, data, &p, extack);
+ if (IS_ERR(t))
+diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
+index d2d97d07ef27..d01ec252cb81 100644
+--- a/net/ipv6/udp.c
++++ b/net/ipv6/udp.c
+@@ -1056,15 +1056,23 @@ static int udp_v6_send_skb(struct sk_buff *skb, struct flowi6 *fl6,
+ const int hlen = skb_network_header_len(skb) +
+ sizeof(struct udphdr);
+
+- if (hlen + cork->gso_size > cork->fragsize)
++ if (hlen + cork->gso_size > cork->fragsize) {
++ kfree_skb(skb);
+ return -EINVAL;
+- if (skb->len > cork->gso_size * UDP_MAX_SEGMENTS)
++ }
++ if (skb->len > cork->gso_size * UDP_MAX_SEGMENTS) {
++ kfree_skb(skb);
+ return -EINVAL;
+- if (udp_sk(sk)->no_check6_tx)
++ }
++ if (udp_sk(sk)->no_check6_tx) {
++ kfree_skb(skb);
+ return -EINVAL;
++ }
+ if (skb->ip_summed != CHECKSUM_PARTIAL || is_udplite ||
+- dst_xfrm(skb_dst(skb)))
++ dst_xfrm(skb_dst(skb))) {
++ kfree_skb(skb);
+ return -EIO;
++ }
+
+ skb_shinfo(skb)->gso_size = cork->gso_size;
+ skb_shinfo(skb)->gso_type = SKB_GSO_UDP_L4;
+diff --git a/net/openvswitch/flow_netlink.c b/net/openvswitch/flow_netlink.c
+index 865ecef68196..c7b6010b2c09 100644
+--- a/net/openvswitch/flow_netlink.c
++++ b/net/openvswitch/flow_netlink.c
+@@ -500,7 +500,7 @@ static int __parse_flow_nlattrs(const struct nlattr *attr,
+ return -EINVAL;
+ }
+
+- if (!nz || !is_all_zero(nla_data(nla), expected_len)) {
++ if (!nz || !is_all_zero(nla_data(nla), nla_len(nla))) {
+ attrs |= 1 << type;
+ a[type] = nla;
+ }
+diff --git a/net/sched/act_tunnel_key.c b/net/sched/act_tunnel_key.c
+index 4cca8f274662..904730b8ce8f 100644
+--- a/net/sched/act_tunnel_key.c
++++ b/net/sched/act_tunnel_key.c
+@@ -197,6 +197,15 @@ static const struct nla_policy tunnel_key_policy[TCA_TUNNEL_KEY_MAX + 1] = {
+ [TCA_TUNNEL_KEY_ENC_TTL] = { .type = NLA_U8 },
+ };
+
++static void tunnel_key_release_params(struct tcf_tunnel_key_params *p)
++{
++ if (!p)
++ return;
++ if (p->tcft_action == TCA_TUNNEL_KEY_ACT_SET)
++ dst_release(&p->tcft_enc_metadata->dst);
++ kfree_rcu(p, rcu);
++}
++
+ static int tunnel_key_init(struct net *net, struct nlattr *nla,
+ struct nlattr *est, struct tc_action **a,
+ int ovr, int bind, bool rtnl_held,
+@@ -360,8 +369,7 @@ static int tunnel_key_init(struct net *net, struct nlattr *nla,
+ rcu_swap_protected(t->params, params_new,
+ lockdep_is_held(&t->tcf_lock));
+ spin_unlock_bh(&t->tcf_lock);
+- if (params_new)
+- kfree_rcu(params_new, rcu);
++ tunnel_key_release_params(params_new);
+
+ if (ret == ACT_P_CREATED)
+ tcf_idr_insert(tn, *a);
+@@ -385,12 +393,7 @@ static void tunnel_key_release(struct tc_action *a)
+ struct tcf_tunnel_key_params *params;
+
+ params = rcu_dereference_protected(t->params, 1);
+- if (params) {
+- if (params->tcft_action == TCA_TUNNEL_KEY_ACT_SET)
+- dst_release(&params->tcft_enc_metadata->dst);
+-
+- kfree_rcu(params, rcu);
+- }
++ tunnel_key_release_params(params);
+ }
+
+ static int tunnel_key_geneve_opts_dump(struct sk_buff *skb,
+diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c
+index f427a1e00e7e..1c4436523aa5 100644
+--- a/net/sched/cls_api.c
++++ b/net/sched/cls_api.c
+@@ -1053,7 +1053,6 @@ static int tcf_block_cb_call(struct tcf_block *block, enum tc_setup_type type,
+ int tcf_classify(struct sk_buff *skb, const struct tcf_proto *tp,
+ struct tcf_result *res, bool compat_mode)
+ {
+- __be16 protocol = tc_skb_protocol(skb);
+ #ifdef CONFIG_NET_CLS_ACT
+ const int max_reclassify_loop = 4;
+ const struct tcf_proto *orig_tp = tp;
+@@ -1063,6 +1062,7 @@ int tcf_classify(struct sk_buff *skb, const struct tcf_proto *tp,
+ reclassify:
+ #endif
+ for (; tp; tp = rcu_dereference_bh(tp->next)) {
++ __be16 protocol = tc_skb_protocol(skb);
+ int err;
+
+ if (tp->protocol != protocol &&
+@@ -1095,7 +1095,6 @@ reset:
+ }
+
+ tp = first_tp;
+- protocol = tc_skb_protocol(skb);
+ goto reclassify;
+ #endif
+ }
+diff --git a/net/sched/cls_flower.c b/net/sched/cls_flower.c
+index 208d940464d7..45bc2b72dc1c 100644
+--- a/net/sched/cls_flower.c
++++ b/net/sched/cls_flower.c
+@@ -1176,17 +1176,23 @@ static int fl_change(struct net *net, struct sk_buff *in_skb,
+ struct cls_fl_head *head = rtnl_dereference(tp->root);
+ struct cls_fl_filter *fold = *arg;
+ struct cls_fl_filter *fnew;
++ struct fl_flow_mask *mask;
+ struct nlattr **tb;
+- struct fl_flow_mask mask = {};
+ int err;
+
+ if (!tca[TCA_OPTIONS])
+ return -EINVAL;
+
+- tb = kcalloc(TCA_FLOWER_MAX + 1, sizeof(struct nlattr *), GFP_KERNEL);
+- if (!tb)
++ mask = kzalloc(sizeof(struct fl_flow_mask), GFP_KERNEL);
++ if (!mask)
+ return -ENOBUFS;
+
++ tb = kcalloc(TCA_FLOWER_MAX + 1, sizeof(struct nlattr *), GFP_KERNEL);
++ if (!tb) {
++ err = -ENOBUFS;
++ goto errout_mask_alloc;
++ }
++
+ err = nla_parse_nested(tb, TCA_FLOWER_MAX, tca[TCA_OPTIONS],
+ fl_policy, NULL);
+ if (err < 0)
+@@ -1229,12 +1235,12 @@ static int fl_change(struct net *net, struct sk_buff *in_skb,
+ }
+ }
+
+- err = fl_set_parms(net, tp, fnew, &mask, base, tb, tca[TCA_RATE], ovr,
++ err = fl_set_parms(net, tp, fnew, mask, base, tb, tca[TCA_RATE], ovr,
+ tp->chain->tmplt_priv, extack);
+ if (err)
+ goto errout_idr;
+
+- err = fl_check_assign_mask(head, fnew, fold, &mask);
++ err = fl_check_assign_mask(head, fnew, fold, mask);
+ if (err)
+ goto errout_idr;
+
+@@ -1278,6 +1284,7 @@ static int fl_change(struct net *net, struct sk_buff *in_skb,
+ }
+
+ kfree(tb);
++ kfree(mask);
+ return 0;
+
+ errout_mask:
+@@ -1291,6 +1298,8 @@ errout:
+ kfree(fnew);
+ errout_tb:
+ kfree(tb);
++errout_mask_alloc:
++ kfree(mask);
+ return err;
+ }
+
+diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c
+index 73547d17d3c6..943f08be7c38 100644
+--- a/net/sunrpc/xprt.c
++++ b/net/sunrpc/xprt.c
+@@ -1177,7 +1177,7 @@ xprt_request_enqueue_transmit(struct rpc_task *task)
+ INIT_LIST_HEAD(&req->rq_xmit2);
+ goto out;
+ }
+- } else {
++ } else if (!req->rq_seqno) {
+ list_for_each_entry(pos, &xprt->xmit_queue, rq_xmit) {
+ if (pos->rq_task->tk_owner != task->tk_owner)
+ continue;
+diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c
+index 51cc6589443f..152f54137082 100644
+--- a/sound/pci/hda/patch_conexant.c
++++ b/sound/pci/hda/patch_conexant.c
+@@ -931,6 +931,7 @@ static const struct snd_pci_quirk cxt5066_fixups[] = {
+ SND_PCI_QUIRK(0x103c, 0x814f, "HP ZBook 15u G3", CXT_FIXUP_MUTE_LED_GPIO),
+ SND_PCI_QUIRK(0x103c, 0x822e, "HP ProBook 440 G4", CXT_FIXUP_MUTE_LED_GPIO),
+ SND_PCI_QUIRK(0x103c, 0x836e, "HP ProBook 455 G5", CXT_FIXUP_MUTE_LED_GPIO),
++ SND_PCI_QUIRK(0x103c, 0x837f, "HP ProBook 470 G5", CXT_FIXUP_MUTE_LED_GPIO),
+ SND_PCI_QUIRK(0x103c, 0x8299, "HP 800 G3 SFF", CXT_FIXUP_HP_MIC_NO_PRESENCE),
+ SND_PCI_QUIRK(0x103c, 0x829a, "HP 800 G3 DM", CXT_FIXUP_HP_MIC_NO_PRESENCE),
+ SND_PCI_QUIRK(0x103c, 0x8455, "HP Z2 G4", CXT_FIXUP_HP_MIC_NO_PRESENCE),
+diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
+index 0d95316d6dbd..8ddd016c04d0 100644
+--- a/sound/pci/hda/patch_realtek.c
++++ b/sound/pci/hda/patch_realtek.c
+@@ -6842,7 +6842,7 @@ static const struct hda_model_fixup alc269_fixup_models[] = {
+ {.id = ALC293_FIXUP_LENOVO_SPK_NOISE, .name = "lenovo-spk-noise"},
+ {.id = ALC233_FIXUP_LENOVO_LINE2_MIC_HOTKEY, .name = "lenovo-hotkey"},
+ {.id = ALC255_FIXUP_DELL_SPK_NOISE, .name = "dell-spk-noise"},
+- {.id = ALC225_FIXUP_DELL1_MIC_NO_PRESENCE, .name = "alc255-dell1"},
++ {.id = ALC225_FIXUP_DELL1_MIC_NO_PRESENCE, .name = "alc225-dell1"},
+ {.id = ALC295_FIXUP_DISABLE_DAC3, .name = "alc295-disable-dac3"},
+ {.id = ALC280_FIXUP_HP_HEADSET_MIC, .name = "alc280-hp-headset"},
+ {.id = ALC221_FIXUP_HP_FRONT_MIC, .name = "alc221-hp-mic"},
+diff --git a/sound/soc/codecs/rt5514-spi.c b/sound/soc/codecs/rt5514-spi.c
+index 4d46f4567c3a..bec2eefa8b0f 100644
+--- a/sound/soc/codecs/rt5514-spi.c
++++ b/sound/soc/codecs/rt5514-spi.c
+@@ -280,6 +280,8 @@ static int rt5514_spi_pcm_probe(struct snd_soc_component *component)
+
+ rt5514_dsp = devm_kzalloc(component->dev, sizeof(*rt5514_dsp),
+ GFP_KERNEL);
++ if (!rt5514_dsp)
++ return -ENOMEM;
+
+ rt5514_dsp->dev = &rt5514_spi->dev;
+ mutex_init(&rt5514_dsp->dma_lock);
+diff --git a/sound/soc/codecs/tlv320aic32x4.c b/sound/soc/codecs/tlv320aic32x4.c
+index e2b5a11b16d1..f03195d2ab2e 100644
+--- a/sound/soc/codecs/tlv320aic32x4.c
++++ b/sound/soc/codecs/tlv320aic32x4.c
+@@ -822,6 +822,10 @@ static int aic32x4_set_bias_level(struct snd_soc_component *component,
+ case SND_SOC_BIAS_PREPARE:
+ break;
+ case SND_SOC_BIAS_STANDBY:
++ /* Initial cold start */
++ if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF)
++ break;
++
+ /* Switch off BCLK_N Divider */
+ snd_soc_component_update_bits(component, AIC32X4_BCLKN,
+ AIC32X4_BCLKEN, 0);
+diff --git a/sound/soc/intel/atom/sst-mfld-platform-pcm.c b/sound/soc/intel/atom/sst-mfld-platform-pcm.c
+index afc559866095..91a2436ce952 100644
+--- a/sound/soc/intel/atom/sst-mfld-platform-pcm.c
++++ b/sound/soc/intel/atom/sst-mfld-platform-pcm.c
+@@ -399,7 +399,13 @@ static int sst_media_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *dai)
+ {
+- snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params));
++ int ret;
++
++ ret =
++ snd_pcm_lib_malloc_pages(substream,
++ params_buffer_bytes(params));
++ if (ret)
++ return ret;
+ memset(substream->runtime->dma_area, 0, params_buffer_bytes(params));
+ return 0;
+ }
+diff --git a/tools/testing/selftests/x86/protection_keys.c b/tools/testing/selftests/x86/protection_keys.c
+index 460b4bdf4c1e..5d546dcdbc80 100644
+--- a/tools/testing/selftests/x86/protection_keys.c
++++ b/tools/testing/selftests/x86/protection_keys.c
+@@ -1133,6 +1133,21 @@ void test_pkey_syscalls_bad_args(int *ptr, u16 pkey)
+ pkey_assert(err);
+ }
+
++void become_child(void)
++{
++ pid_t forkret;
++
++ forkret = fork();
++ pkey_assert(forkret >= 0);
++ dprintf3("[%d] fork() ret: %d\n", getpid(), forkret);
++
++ if (!forkret) {
++ /* in the child */
++ return;
++ }
++ exit(0);
++}
++
+ /* Assumes that all pkeys other than 'pkey' are unallocated */
+ void test_pkey_alloc_exhaust(int *ptr, u16 pkey)
+ {
+@@ -1141,7 +1156,7 @@ void test_pkey_alloc_exhaust(int *ptr, u16 pkey)
+ int nr_allocated_pkeys = 0;
+ int i;
+
+- for (i = 0; i < NR_PKEYS*2; i++) {
++ for (i = 0; i < NR_PKEYS*3; i++) {
+ int new_pkey;
+ dprintf1("%s() alloc loop: %d\n", __func__, i);
+ new_pkey = alloc_pkey();
+@@ -1152,20 +1167,26 @@ void test_pkey_alloc_exhaust(int *ptr, u16 pkey)
+ if ((new_pkey == -1) && (errno == ENOSPC)) {
+ dprintf2("%s() failed to allocate pkey after %d tries\n",
+ __func__, nr_allocated_pkeys);
+- break;
++ } else {
++ /*
++ * Ensure the number of successes never
++ * exceeds the number of keys supported
++ * in the hardware.
++ */
++ pkey_assert(nr_allocated_pkeys < NR_PKEYS);
++ allocated_pkeys[nr_allocated_pkeys++] = new_pkey;
+ }
+- pkey_assert(nr_allocated_pkeys < NR_PKEYS);
+- allocated_pkeys[nr_allocated_pkeys++] = new_pkey;
++
++ /*
++ * Make sure that allocation state is properly
++ * preserved across fork().
++ */
++ if (i == NR_PKEYS*2)
++ become_child();
+ }
+
+ dprintf3("%s()::%d\n", __func__, __LINE__);
+
+- /*
+- * ensure it did not reach the end of the loop without
+- * failure:
+- */
+- pkey_assert(i < NR_PKEYS*2);
+-
+ /*
+ * There are 16 pkeys supported in hardware. Three are
+ * allocated by the time we get here: