Merge a298df1bbe ("usb: dwc3: Fix timeout issue during controller enter/exit from halt state") into android14-6.1-lts

Steps on the way to 6.1.129

Resolves merge conflicts in:
	drivers/pps/clients/pps-ldisc.c

Change-Id: Idc1822210eb87723c7e7e34ad8ba71d2ca1d4ad3
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

arch/arm64/kernel/cacheinfo.c

@@ -87,16 +87,18 @@ int populate_cache_leaves(unsigned int cpu)
 	unsigned int level, idx;
 	enum cache_type type;
 	struct cpu_cacheinfo *this_cpu_ci = get_cpu_cacheinfo(cpu);
-	struct cacheinfo *this_leaf = this_cpu_ci->info_list;
+	struct cacheinfo *infos = this_cpu_ci->info_list;
 
 	for (idx = 0, level = 1; level <= this_cpu_ci->num_levels &&
-	     idx < this_cpu_ci->num_leaves; idx++, level++) {
+	     idx < this_cpu_ci->num_leaves; level++) {
 		type = get_cache_type(level);
 		if (type == CACHE_TYPE_SEPARATE) {
-			ci_leaf_init(this_leaf++, CACHE_TYPE_DATA, level);
-			ci_leaf_init(this_leaf++, CACHE_TYPE_INST, level);
+			if (idx + 1 >= this_cpu_ci->num_leaves)
+				break;
+			ci_leaf_init(&infos[idx++], CACHE_TYPE_DATA, level);
+			ci_leaf_init(&infos[idx++], CACHE_TYPE_INST, level);
 		} else {
-			ci_leaf_init(this_leaf++, type, level);
+			ci_leaf_init(&infos[idx++], type, level);
 		}
 	}
 	return 0;

arch/x86/events/intel/core.c

@@ -4582,8 +4582,11 @@ static void intel_pmu_cpu_starting(int cpu)
 
 	init_debug_store_on_cpu(cpu);
 	/*
-	 * Deal with CPUs that don't clear their LBRs on power-up.
+	 * Deal with CPUs that don't clear their LBRs on power-up, and that may
+	 * even boot with LBRs enabled.
 	 */
+	if (!static_cpu_has(X86_FEATURE_ARCH_LBR) && x86_pmu.lbr_nr)
+		msr_clear_bit(MSR_IA32_DEBUGCTLMSR, DEBUGCTLMSR_LBR_BIT);
 	intel_pmu_lbr_reset();
 
 	cpuc->lbr_sel = NULL;

arch/x86/include/asm/mmu.h

@@ -33,6 +33,8 @@ typedef struct {
 	 */
 	atomic64_t tlb_gen;
 
+	unsigned long next_trim_cpumask;
+
 #ifdef CONFIG_MODIFY_LDT_SYSCALL
 	struct rw_semaphore	ldt_usr_sem;
 	struct ldt_struct	*ldt;

arch/x86/include/asm/mmu_context.h

@@ -106,6 +106,7 @@ static inline int init_new_context(struct task_struct *tsk,
 
 	mm->context.ctx_id = atomic64_inc_return(&last_mm_ctx_id);
 	atomic64_set(&mm->context.tlb_gen, 0);
+	mm->context.next_trim_cpumask = jiffies + HZ;
 
 #ifdef CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS
 	if (cpu_feature_enabled(X86_FEATURE_OSPKE)) {

arch/x86/include/asm/msr-index.h

@@ -357,7 +357,8 @@
 #define MSR_IA32_PASID_VALID		BIT_ULL(31)
 
 /* DEBUGCTLMSR bits (others vary by model): */
-#define DEBUGCTLMSR_LBR			(1UL <<  0) /* last branch recording */
+#define DEBUGCTLMSR_LBR_BIT		0	     /* last branch recording */
+#define DEBUGCTLMSR_LBR			(1UL <<  DEBUGCTLMSR_LBR_BIT)
 #define DEBUGCTLMSR_BTF_SHIFT		1
 #define DEBUGCTLMSR_BTF			(1UL <<  1) /* single-step on branches */
 #define DEBUGCTLMSR_BUS_LOCK_DETECT	(1UL <<  2)

arch/x86/include/asm/tlbflush.h

@@ -208,6 +208,7 @@ struct flush_tlb_info {
 	unsigned int		initiating_cpu;
 	u8			stride_shift;
 	u8			freed_tables;
+	u8			trim_cpumask;
 };
 
 void flush_tlb_local(void);

arch/x86/kvm/hyperv.c

@@ -1915,6 +1915,9 @@ static u64 kvm_hv_send_ipi(struct kvm_vcpu *vcpu, struct kvm_hv_hcall *hc)
 	u32 vector;
 	bool all_cpus;
 
+	if (!lapic_in_kernel(vcpu))
+		return HV_STATUS_INVALID_HYPERCALL_INPUT;
+
 	if (hc->code == HVCALL_SEND_IPI) {
 		if (!hc->fast) {
 			if (unlikely(kvm_read_guest(kvm, hc->ingpa, &send_ipi,
@@ -2518,7 +2521,8 @@ int kvm_get_hv_cpuid(struct kvm_vcpu *vcpu, struct kvm_cpuid2 *cpuid,
 			ent->eax |= HV_X64_REMOTE_TLB_FLUSH_RECOMMENDED;
 			ent->eax |= HV_X64_APIC_ACCESS_RECOMMENDED;
 			ent->eax |= HV_X64_RELAXED_TIMING_RECOMMENDED;
-			ent->eax |= HV_X64_CLUSTER_IPI_RECOMMENDED;
+			if (!vcpu || lapic_in_kernel(vcpu))
+				ent->eax |= HV_X64_CLUSTER_IPI_RECOMMENDED;
 			ent->eax |= HV_X64_EX_PROCESSOR_MASKS_RECOMMENDED;
 			if (evmcs_ver)
 				ent->eax |= HV_X64_ENLIGHTENED_VMCS_RECOMMENDED;

arch/x86/kvm/mmu/mmu.c

@@ -5150,7 +5150,7 @@ void kvm_init_shadow_npt_mmu(struct kvm_vcpu *vcpu, unsigned long cr0,
 	union kvm_mmu_page_role root_role;
 
 	/* NPT requires CR0.PG=1. */
-	WARN_ON_ONCE(cpu_role.base.direct);
+	WARN_ON_ONCE(cpu_role.base.direct || !cpu_role.base.guest_mode);
 
 	root_role = cpu_role.base;
 	root_role.level = kvm_mmu_get_tdp_level(vcpu);

arch/x86/kvm/svm/nested.c

@@ -619,6 +619,11 @@ static void nested_vmcb02_prepare_control(struct vcpu_svm *svm,
 	u32 pause_count12;
 	u32 pause_thresh12;
 
+	nested_svm_transition_tlb_flush(vcpu);
+
+	/* Enter Guest-Mode */
+	enter_guest_mode(vcpu);
+
 	/*
 	 * Filled at exit: exit_code, exit_code_hi, exit_info_1, exit_info_2,
 	 * exit_int_info, exit_int_info_err, next_rip, insn_len, insn_bytes.
@@ -717,11 +722,6 @@ static void nested_vmcb02_prepare_control(struct vcpu_svm *svm,
 		}
 	}
 
-	nested_svm_transition_tlb_flush(vcpu);
-
-	/* Enter Guest-Mode */
-	enter_guest_mode(vcpu);
-
 	/*
 	 * Merge guest and host intercepts - must be called with vcpu in
 	 * guest-mode to take effect.

arch/x86/mm/tlb.c

@@ -878,9 +878,36 @@ done:
 			nr_invalidate);
 }
 
-static bool tlb_is_not_lazy(int cpu, void *data)
+static bool should_flush_tlb(int cpu, void *data)
 {
-	return !per_cpu(cpu_tlbstate_shared.is_lazy, cpu);
+	struct flush_tlb_info *info = data;
+
+	/* Lazy TLB will get flushed at the next context switch. */
+	if (per_cpu(cpu_tlbstate_shared.is_lazy, cpu))
+		return false;
+
+	/* No mm means kernel memory flush. */
+	if (!info->mm)
+		return true;
+
+	/* The target mm is loaded, and the CPU is not lazy. */
+	if (per_cpu(cpu_tlbstate.loaded_mm, cpu) == info->mm)
+		return true;
+
+	/* In cpumask, but not the loaded mm? Periodically remove by flushing. */
+	if (info->trim_cpumask)
+		return true;
+
+	return false;
+}
+
+static bool should_trim_cpumask(struct mm_struct *mm)
+{
+	if (time_after(jiffies, READ_ONCE(mm->context.next_trim_cpumask))) {
+		WRITE_ONCE(mm->context.next_trim_cpumask, jiffies + HZ);
+		return true;
+	}
+	return false;
 }
 
 DEFINE_PER_CPU_SHARED_ALIGNED(struct tlb_state_shared, cpu_tlbstate_shared);
@@ -914,7 +941,7 @@ STATIC_NOPV void native_flush_tlb_multi(const struct cpumask *cpumask,
 	if (info->freed_tables)
 		on_each_cpu_mask(cpumask, flush_tlb_func, (void *)info, true);
 	else
-		on_each_cpu_cond_mask(tlb_is_not_lazy, flush_tlb_func,
+		on_each_cpu_cond_mask(should_flush_tlb, flush_tlb_func,
 				(void *)info, 1, cpumask);
 }
 
@@ -965,6 +992,7 @@ static struct flush_tlb_info *get_flush_tlb_info(struct mm_struct *mm,
 	info->freed_tables	= freed_tables;
 	info->new_tlb_gen	= new_tlb_gen;
 	info->initiating_cpu	= smp_processor_id();
+	info->trim_cpumask	= 0;
 
 	return info;
 }
@@ -1007,6 +1035,7 @@ void flush_tlb_mm_range(struct mm_struct *mm, unsigned long start,
 	 * flush_tlb_func_local() directly in this case.
 	 */
 	if (cpumask_any_but(mm_cpumask(mm), cpu) < nr_cpu_ids) {
+		info->trim_cpumask = should_trim_cpumask(mm);
 		flush_tlb_multi(mm_cpumask(mm), info);
 	} else if (mm == this_cpu_read(cpu_tlbstate.loaded_mm)) {
 		lockdep_assert_irqs_enabled();

arch/x86/xen/mmu_pv.c

@@ -97,6 +97,51 @@ static pud_t level3_user_vsyscall[PTRS_PER_PUD] __page_aligned_bss;
  */
 static DEFINE_SPINLOCK(xen_reservation_lock);
 
+/* Protected by xen_reservation_lock. */
+#define MIN_CONTIG_ORDER 9 /* 2MB */
+static unsigned int discontig_frames_order = MIN_CONTIG_ORDER;
+static unsigned long discontig_frames_early[1UL << MIN_CONTIG_ORDER] __initdata;
+static unsigned long *discontig_frames __refdata = discontig_frames_early;
+static bool discontig_frames_dyn;
+
+static int alloc_discontig_frames(unsigned int order)
+{
+	unsigned long *new_array, *old_array;
+	unsigned int old_order;
+	unsigned long flags;
+
+	BUG_ON(order < MIN_CONTIG_ORDER);
+	BUILD_BUG_ON(sizeof(discontig_frames_early) != PAGE_SIZE);
+
+	new_array = (unsigned long *)__get_free_pages(GFP_KERNEL,
+						      order - MIN_CONTIG_ORDER);
+	if (!new_array)
+		return -ENOMEM;
+
+	spin_lock_irqsave(&xen_reservation_lock, flags);
+
+	old_order = discontig_frames_order;
+
+	if (order > discontig_frames_order || !discontig_frames_dyn) {
+		if (!discontig_frames_dyn)
+			old_array = NULL;
+		else
+			old_array = discontig_frames;
+
+		discontig_frames = new_array;
+		discontig_frames_order = order;
+		discontig_frames_dyn = true;
+	} else {
+		old_array = new_array;
+	}
+
+	spin_unlock_irqrestore(&xen_reservation_lock, flags);
+
+	free_pages((unsigned long)old_array, old_order - MIN_CONTIG_ORDER);
+
+	return 0;
+}
+
 /*
  * Note about cr3 (pagetable base) values:
  *
@@ -766,6 +811,7 @@ void xen_mm_pin_all(void)
 {
 	struct page *page;
 
+	spin_lock(&init_mm.page_table_lock);
 	spin_lock(&pgd_lock);
 
 	list_for_each_entry(page, &pgd_list, lru) {
@@ -776,6 +822,7 @@ void xen_mm_pin_all(void)
 	}
 
 	spin_unlock(&pgd_lock);
+	spin_unlock(&init_mm.page_table_lock);
 }
 
 static void __init xen_mark_pinned(struct mm_struct *mm, struct page *page,
@@ -797,6 +844,9 @@ static void __init xen_after_bootmem(void)
 	SetPagePinned(virt_to_page(level3_user_vsyscall));
 #endif
 	xen_pgd_walk(&init_mm, xen_mark_pinned, FIXADDR_TOP);
+
+	if (alloc_discontig_frames(MIN_CONTIG_ORDER))
+		BUG();
 }
 
 static void xen_unpin_page(struct mm_struct *mm, struct page *page,
@@ -872,6 +922,7 @@ void xen_mm_unpin_all(void)
 {
 	struct page *page;
 
+	spin_lock(&init_mm.page_table_lock);
 	spin_lock(&pgd_lock);
 
 	list_for_each_entry(page, &pgd_list, lru) {
@@ -883,6 +934,7 @@ void xen_mm_unpin_all(void)
 	}
 
 	spin_unlock(&pgd_lock);
+	spin_unlock(&init_mm.page_table_lock);
 }
 
 static void xen_activate_mm(struct mm_struct *prev, struct mm_struct *next)
@@ -2177,10 +2229,6 @@ void __init xen_init_mmu_ops(void)
 	memset(dummy_mapping, 0xff, PAGE_SIZE);
 }
 
-/* Protected by xen_reservation_lock. */
-#define MAX_CONTIG_ORDER 9 /* 2MB */
-static unsigned long discontig_frames[1<<MAX_CONTIG_ORDER];
-
 #define VOID_PTE (mfn_pte(0, __pgprot(0)))
 static void xen_zap_pfn_range(unsigned long vaddr, unsigned int order,
 				unsigned long *in_frames,
@@ -2297,24 +2345,25 @@ int xen_create_contiguous_region(phys_addr_t pstart, unsigned int order,
 				 unsigned int address_bits,
 				 dma_addr_t *dma_handle)
 {
-	unsigned long *in_frames = discontig_frames, out_frame;
+	unsigned long *in_frames, out_frame;
 	unsigned long  flags;
 	int            success;
 	unsigned long vstart = (unsigned long)phys_to_virt(pstart);
 
-	/*
-	 * Currently an auto-translated guest will not perform I/O, nor will
-	 * it require PAE page directories below 4GB. Therefore any calls to
-	 * this function are redundant and can be ignored.
-	 */
+	if (unlikely(order > discontig_frames_order)) {
+		if (!discontig_frames_dyn)
+			return -ENOMEM;
 
-	if (unlikely(order > MAX_CONTIG_ORDER))
-		return -ENOMEM;
+		if (alloc_discontig_frames(order))
+			return -ENOMEM;
+	}
 
 	memset((void *) vstart, 0, PAGE_SIZE << order);
 
 	spin_lock_irqsave(&xen_reservation_lock, flags);
 
+	in_frames = discontig_frames;
+
 	/* 1. Zap current PTEs, remembering MFNs. */
 	xen_zap_pfn_range(vstart, order, in_frames, NULL);
 
@@ -2338,12 +2387,12 @@ int xen_create_contiguous_region(phys_addr_t pstart, unsigned int order,
 
 void xen_destroy_contiguous_region(phys_addr_t pstart, unsigned int order)
 {
-	unsigned long *out_frames = discontig_frames, in_frame;
+	unsigned long *out_frames, in_frame;
 	unsigned long  flags;
 	int success;
 	unsigned long vstart;
 
-	if (unlikely(order > MAX_CONTIG_ORDER))
+	if (unlikely(order > discontig_frames_order))
 		return;
 
 	vstart = (unsigned long)phys_to_virt(pstart);
@@ -2351,6 +2400,8 @@ void xen_destroy_contiguous_region(phys_addr_t pstart, unsigned int order)
 
 	spin_lock_irqsave(&xen_reservation_lock, flags);
 
+	out_frames = discontig_frames;
+
 	/* 1. Find start MFN of contiguous extent. */
 	in_frame = virt_to_mfn(vstart);
 

drivers/gpio/gpio-bcm-kona.c

@@ -68,6 +68,22 @@ struct bcm_kona_gpio {
 struct bcm_kona_gpio_bank {
 	int id;
 	int irq;
+	/*
+	 * Used to keep track of lock/unlock operations for each GPIO in the
+	 * bank.
+	 *
+	 * All GPIOs are locked by default (see bcm_kona_gpio_reset), and the
+	 * unlock count for all GPIOs is 0 by default. Each unlock increments
+	 * the counter, and each lock decrements the counter.
+	 *
+	 * The lock function only locks the GPIO once its unlock counter is
+	 * down to 0. This is necessary because the GPIO is unlocked in two
+	 * places in this driver: once for requested GPIOs, and once for
+	 * requested IRQs. Since it is possible for a GPIO to be requested
+	 * as both a GPIO and an IRQ, we need to ensure that we don't lock it
+	 * too early.
+	 */
+	u8 gpio_unlock_count[GPIO_PER_BANK];
 	/* Used in the interrupt handler */
 	struct bcm_kona_gpio *kona_gpio;
 };
@@ -85,14 +101,24 @@ static void bcm_kona_gpio_lock_gpio(struct bcm_kona_gpio *kona_gpio,
 	u32 val;
 	unsigned long flags;
 	int bank_id = GPIO_BANK(gpio);
+	int bit = GPIO_BIT(gpio);
+	struct bcm_kona_gpio_bank *bank = &kona_gpio->banks[bank_id];
 
-	raw_spin_lock_irqsave(&kona_gpio->lock, flags);
+	if (bank->gpio_unlock_count[bit] == 0) {
+		dev_err(kona_gpio->gpio_chip.parent,
+			"Unbalanced locks for GPIO %u\n", gpio);
+		return;
+	}
 
-	val = readl(kona_gpio->reg_base + GPIO_PWD_STATUS(bank_id));
-	val |= BIT(gpio);
-	bcm_kona_gpio_write_lock_regs(kona_gpio->reg_base, bank_id, val);
+	if (--bank->gpio_unlock_count[bit] == 0) {
+		raw_spin_lock_irqsave(&kona_gpio->lock, flags);
 
-	raw_spin_unlock_irqrestore(&kona_gpio->lock, flags);
+		val = readl(kona_gpio->reg_base + GPIO_PWD_STATUS(bank_id));
+		val |= BIT(bit);
+		bcm_kona_gpio_write_lock_regs(kona_gpio->reg_base, bank_id, val);
+
+		raw_spin_unlock_irqrestore(&kona_gpio->lock, flags);
+	}
 }
 
 static void bcm_kona_gpio_unlock_gpio(struct bcm_kona_gpio *kona_gpio,
@@ -101,14 +127,20 @@ static void bcm_kona_gpio_unlock_gpio(struct bcm_kona_gpio *kona_gpio,
 	u32 val;
 	unsigned long flags;
 	int bank_id = GPIO_BANK(gpio);
+	int bit = GPIO_BIT(gpio);
+	struct bcm_kona_gpio_bank *bank = &kona_gpio->banks[bank_id];
 
-	raw_spin_lock_irqsave(&kona_gpio->lock, flags);
+	if (bank->gpio_unlock_count[bit] == 0) {
+		raw_spin_lock_irqsave(&kona_gpio->lock, flags);
 
-	val = readl(kona_gpio->reg_base + GPIO_PWD_STATUS(bank_id));
-	val &= ~BIT(gpio);
-	bcm_kona_gpio_write_lock_regs(kona_gpio->reg_base, bank_id, val);
+		val = readl(kona_gpio->reg_base + GPIO_PWD_STATUS(bank_id));
+		val &= ~BIT(bit);
+		bcm_kona_gpio_write_lock_regs(kona_gpio->reg_base, bank_id, val);
 
-	raw_spin_unlock_irqrestore(&kona_gpio->lock, flags);
+		raw_spin_unlock_irqrestore(&kona_gpio->lock, flags);
+	}
+
+	++bank->gpio_unlock_count[bit];
 }
 
 static int bcm_kona_gpio_get_dir(struct gpio_chip *chip, unsigned gpio)
@@ -359,6 +391,7 @@ static void bcm_kona_gpio_irq_mask(struct irq_data *d)
 
 	kona_gpio = irq_data_get_irq_chip_data(d);
 	reg_base = kona_gpio->reg_base;
+
 	raw_spin_lock_irqsave(&kona_gpio->lock, flags);
 
 	val = readl(reg_base + GPIO_INT_MASK(bank_id));
@@ -381,6 +414,7 @@ static void bcm_kona_gpio_irq_unmask(struct irq_data *d)
 
 	kona_gpio = irq_data_get_irq_chip_data(d);
 	reg_base = kona_gpio->reg_base;
+
 	raw_spin_lock_irqsave(&kona_gpio->lock, flags);
 
 	val = readl(reg_base + GPIO_INT_MSKCLR(bank_id));
@@ -476,15 +510,26 @@ static void bcm_kona_gpio_irq_handler(struct irq_desc *desc)
 static int bcm_kona_gpio_irq_reqres(struct irq_data *d)
 {
 	struct bcm_kona_gpio *kona_gpio = irq_data_get_irq_chip_data(d);
+	unsigned int gpio = d->hwirq;
 
-	return gpiochip_reqres_irq(&kona_gpio->gpio_chip, d->hwirq);
+	/*
+	 * We need to unlock the GPIO before any other operations are performed
+	 * on the relevant GPIO configuration registers
+	 */
+	bcm_kona_gpio_unlock_gpio(kona_gpio, gpio);
+
+	return gpiochip_reqres_irq(&kona_gpio->gpio_chip, gpio);
 }
 
 static void bcm_kona_gpio_irq_relres(struct irq_data *d)
 {
 	struct bcm_kona_gpio *kona_gpio = irq_data_get_irq_chip_data(d);
+	unsigned int gpio = d->hwirq;
 
-	gpiochip_relres_irq(&kona_gpio->gpio_chip, d->hwirq);
+	/* Once we no longer use it, lock the GPIO again */
+	bcm_kona_gpio_lock_gpio(kona_gpio, gpio);
+
+	gpiochip_relres_irq(&kona_gpio->gpio_chip, gpio);
 }
 
 static struct irq_chip bcm_gpio_irq_chip = {
@@ -622,7 +667,7 @@ static int bcm_kona_gpio_probe(struct platform_device *pdev)
 		bank->irq = platform_get_irq(pdev, i);
 		bank->kona_gpio = kona_gpio;
 		if (bank->irq < 0) {
-			dev_err(dev, "Couldn't get IRQ for bank %d", i);
+			dev_err(dev, "Couldn't get IRQ for bank %d\n", i);
 			ret = -ENOENT;
 			goto err_irq_domain;
 		}

drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c

@@ -516,7 +516,8 @@ static int smu_sys_set_pp_table(void *handle,
 		return -EIO;
 	}
 
-	if (!smu_table->hardcode_pptable) {
+	if (!smu_table->hardcode_pptable || smu_table->power_play_table_size < size) {
+		kfree(smu_table->hardcode_pptable);
 		smu_table->hardcode_pptable = kzalloc(size, GFP_KERNEL);
 		if (!smu_table->hardcode_pptable)
 			return -ENOMEM;

drivers/gpu/drm/i915/selftests/i915_gem_gtt.c

@@ -164,7 +164,7 @@ static int igt_ppgtt_alloc(void *arg)
 		return PTR_ERR(ppgtt);
 
 	if (!ppgtt->vm.allocate_va_range)
-		goto err_ppgtt_cleanup;
+		goto ppgtt_vm_put;
 
 	/*
 	 * While we only allocate the page tables here and so we could
@@ -232,7 +232,7 @@ err_ppgtt_cleanup:
 			goto retry;
 	}
 	i915_gem_ww_ctx_fini(&ww);
-
+ppgtt_vm_put:
 	i915_vm_put(&ppgtt->vm);
 	return err;
 }

drivers/hid/hid-multitouch.c

@@ -1668,9 +1668,12 @@ static int mt_input_configured(struct hid_device *hdev, struct hid_input *hi)
 		break;
 	}
 
-	if (suffix)
+	if (suffix) {
 		hi->input->name = devm_kasprintf(&hdev->dev, GFP_KERNEL,
 						 "%s %s", hdev->name, suffix);
+		if (!hi->input->name)
+			return -ENOMEM;
+	}
 
 	return 0;
 }

drivers/hid/hid-thrustmaster.c

@@ -171,7 +171,7 @@ static void thrustmaster_interrupts(struct hid_device *hdev)
 	b_ep = ep->desc.bEndpointAddress;
 
 	/* Are the expected endpoints present? */
-	u8 ep_addr[1] = {b_ep};
+	u8 ep_addr[2] = {b_ep, 0};
 
 	if (!usb_check_int_endpoints(usbif, ep_addr)) {
 		hid_err(hdev, "Unexpected non-int endpoint\n");

drivers/infiniband/hw/efa/efa_main.c

@@ -452,7 +452,6 @@ static void efa_ib_device_remove(struct efa_dev *dev)
 	ibdev_info(&dev->ibdev, "Unregister ib device\n");
 	ib_unregister_device(&dev->ibdev);
 	efa_destroy_eqs(dev);
-	efa_com_dev_reset(&dev->edev, EFA_REGS_RESET_NORMAL);
 	efa_release_doorbell_bar(dev);
 }
 
@@ -623,12 +622,14 @@ err_disable_device:
 	return ERR_PTR(err);
 }
 
-static void efa_remove_device(struct pci_dev *pdev)
+static void efa_remove_device(struct pci_dev *pdev,
+			      enum efa_regs_reset_reason_types reset_reason)
 {
 	struct efa_dev *dev = pci_get_drvdata(pdev);
 	struct efa_com_dev *edev;
 
 	edev = &dev->edev;
+	efa_com_dev_reset(edev, reset_reason);
 	efa_com_admin_destroy(edev);
 	efa_free_irq(dev, &dev->admin_irq);
 	efa_disable_msix(dev);
@@ -656,7 +657,7 @@ static int efa_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	return 0;
 
 err_remove_device:
-	efa_remove_device(pdev);
+	efa_remove_device(pdev, EFA_REGS_RESET_INIT_ERR);
 	return err;
 }
 
@@ -665,7 +666,7 @@ static void efa_remove(struct pci_dev *pdev)
 	struct efa_dev *dev = pci_get_drvdata(pdev);
 
 	efa_ib_device_remove(dev);
-	efa_remove_device(pdev);
+	efa_remove_device(pdev, EFA_REGS_RESET_NORMAL);
 }
 
 static struct pci_driver efa_pci_driver = {

drivers/media/dvb-frontends/cxd2841er.c

@@ -311,12 +311,8 @@ static int cxd2841er_set_reg_bits(struct cxd2841er_priv *priv,
 
 static u32 cxd2841er_calc_iffreq_xtal(enum cxd2841er_xtal xtal, u32 ifhz)
 {
-	u64 tmp;
-
-	tmp = (u64) ifhz * 16777216;
-	do_div(tmp, ((xtal == SONY_XTAL_24000) ? 48000000 : 41000000));
-
-	return (u32) tmp;
+	return div_u64(ifhz * 16777216ull,
+		       (xtal == SONY_XTAL_24000) ? 48000000 : 41000000);
 }
 
 static u32 cxd2841er_calc_iffreq(u32 ifhz)

drivers/media/test-drivers/vidtv/vidtv_bridge.c

@@ -191,10 +191,11 @@ static int vidtv_start_streaming(struct vidtv_dvb *dvb)
 
 	mux_args.mux_buf_sz  = mux_buf_sz;
 
-	dvb->streaming = true;
 	dvb->mux = vidtv_mux_init(dvb->fe[0], dev, &mux_args);
 	if (!dvb->mux)
 		return -ENOMEM;
+
+	dvb->streaming = true;
 	vidtv_mux_start_thread(dvb->mux);
 
 	dev_dbg_ratelimited(dev, "Started streaming\n");
@@ -205,6 +206,11 @@ static int vidtv_stop_streaming(struct vidtv_dvb *dvb)
 {
 	struct device *dev = &dvb->pdev->dev;
 
+	if (!dvb->streaming) {
+		dev_warn_ratelimited(dev, "No streaming. Skipping.\n");
+		return 0;
+	}
+
 	dvb->streaming = false;
 	vidtv_mux_stop_thread(dvb->mux);
 	vidtv_mux_destroy(dvb->mux);

drivers/net/team/team.c

@@ -2670,7 +2670,9 @@ static int team_nl_cmd_options_set(struct sk_buff *skb, struct genl_info *info)
 				ctx.data.u32_val = nla_get_u32(attr_data);
 				break;
 			case TEAM_OPTION_TYPE_STRING:
-				if (nla_len(attr_data) > TEAM_STRING_MAX_LEN) {
+				if (nla_len(attr_data) > TEAM_STRING_MAX_LEN ||
+				    !memchr(nla_data(attr_data), '\0',
+					    nla_len(attr_data))) {
 					err = -EINVAL;
 					goto team_put;
 				}

drivers/net/vxlan/vxlan_core.c

@@ -2982,8 +2982,11 @@ static int vxlan_init(struct net_device *dev)
 	struct vxlan_dev *vxlan = netdev_priv(dev);
 	int err;
 
-	if (vxlan->cfg.flags & VXLAN_F_VNIFILTER)
-		vxlan_vnigroup_init(vxlan);
+	if (vxlan->cfg.flags & VXLAN_F_VNIFILTER) {
+		err = vxlan_vnigroup_init(vxlan);
+		if (err)
+			return err;
+	}
 
 	dev->tstats = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats);
 	if (!dev->tstats) {

drivers/pci/quirks.c

@@ -5870,6 +5870,17 @@ SWITCHTEC_QUIRK(0x5552);  /* PAXA 52XG5 */
 SWITCHTEC_QUIRK(0x5536);  /* PAXA 36XG5 */
 SWITCHTEC_QUIRK(0x5528);  /* PAXA 28XG5 */
 
+#define SWITCHTEC_PCI100X_QUIRK(vid) \
+	DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_EFAR, vid, \
+		PCI_CLASS_BRIDGE_OTHER, 8, quirk_switchtec_ntb_dma_alias)
+SWITCHTEC_PCI100X_QUIRK(0x1001);  /* PCI1001XG4 */
+SWITCHTEC_PCI100X_QUIRK(0x1002);  /* PCI1002XG4 */
+SWITCHTEC_PCI100X_QUIRK(0x1003);  /* PCI1003XG4 */
+SWITCHTEC_PCI100X_QUIRK(0x1004);  /* PCI1004XG4 */
+SWITCHTEC_PCI100X_QUIRK(0x1005);  /* PCI1005XG4 */
+SWITCHTEC_PCI100X_QUIRK(0x1006);  /* PCI1006XG4 */
+
+
 /*
  * The PLX NTB uses devfn proxy IDs to move TLPs between NT endpoints.
  * These IDs are used to forward responses to the originator on the other
@@ -6139,6 +6150,7 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x9a2b, dpc_log_size);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x9a2d, dpc_log_size);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x9a2f, dpc_log_size);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x9a31, dpc_log_size);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0xa72f, dpc_log_size);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0xa73f, dpc_log_size);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0xa76e, dpc_log_size);
 #endif

drivers/pci/switch/switchtec.c

@@ -1739,6 +1739,26 @@ static void switchtec_pci_remove(struct pci_dev *pdev)
 		.driver_data = gen, \
 	}
 
+#define SWITCHTEC_PCI100X_DEVICE(device_id, gen) \
+	{ \
+		.vendor     = PCI_VENDOR_ID_EFAR, \
+		.device     = device_id, \
+		.subvendor  = PCI_ANY_ID, \
+		.subdevice  = PCI_ANY_ID, \
+		.class      = (PCI_CLASS_MEMORY_OTHER << 8), \
+		.class_mask = 0xFFFFFFFF, \
+		.driver_data = gen, \
+	}, \
+	{ \
+		.vendor     = PCI_VENDOR_ID_EFAR, \
+		.device     = device_id, \
+		.subvendor  = PCI_ANY_ID, \
+		.subdevice  = PCI_ANY_ID, \
+		.class      = (PCI_CLASS_BRIDGE_OTHER << 8), \
+		.class_mask = 0xFFFFFFFF, \
+		.driver_data = gen, \
+	}
+
 static const struct pci_device_id switchtec_pci_tbl[] = {
 	SWITCHTEC_PCI_DEVICE(0x8531, SWITCHTEC_GEN3),  /* PFX 24xG3 */
 	SWITCHTEC_PCI_DEVICE(0x8532, SWITCHTEC_GEN3),  /* PFX 32xG3 */
@@ -1833,6 +1853,12 @@ static const struct pci_device_id switchtec_pci_tbl[] = {
 	SWITCHTEC_PCI_DEVICE(0x5552, SWITCHTEC_GEN5),  /* PAXA 52XG5 */
 	SWITCHTEC_PCI_DEVICE(0x5536, SWITCHTEC_GEN5),  /* PAXA 36XG5 */
 	SWITCHTEC_PCI_DEVICE(0x5528, SWITCHTEC_GEN5),  /* PAXA 28XG5 */
+	SWITCHTEC_PCI100X_DEVICE(0x1001, SWITCHTEC_GEN4),  /* PCI1001 16XG4 */
+	SWITCHTEC_PCI100X_DEVICE(0x1002, SWITCHTEC_GEN4),  /* PCI1002 12XG4 */
+	SWITCHTEC_PCI100X_DEVICE(0x1003, SWITCHTEC_GEN4),  /* PCI1003 16XG4 */
+	SWITCHTEC_PCI100X_DEVICE(0x1004, SWITCHTEC_GEN4),  /* PCI1004 16XG4 */
+	SWITCHTEC_PCI100X_DEVICE(0x1005, SWITCHTEC_GEN4),  /* PCI1005 16XG4 */
+	SWITCHTEC_PCI100X_DEVICE(0x1006, SWITCHTEC_GEN4),  /* PCI1006 16XG4 */
 	{0}
 };
 MODULE_DEVICE_TABLE(pci, switchtec_pci_tbl);

drivers/pinctrl/pinctrl-cy8c95x0.c

@@ -1234,7 +1234,7 @@ static int cy8c95x0_irq_setup(struct cy8c95x0_pinctrl *chip, int irq)
 
 	ret = devm_request_threaded_irq(chip->dev, irq,
 					NULL, cy8c95x0_irq_handler,
-					IRQF_ONESHOT | IRQF_SHARED | IRQF_TRIGGER_HIGH,
+					IRQF_ONESHOT | IRQF_SHARED,
 					dev_name(chip->dev), chip);
 	if (ret) {
 		dev_err(chip->dev, "failed to request irq %d\n", irq);

drivers/pps/clients/pps-gpio.c

@@ -214,8 +214,8 @@ static int pps_gpio_probe(struct platform_device *pdev)
 		return -EINVAL;
 	}
 
-	dev_info(data->pps->dev, "Registered IRQ %d as PPS source\n",
-		 data->irq);
+	dev_dbg(&data->pps->dev, "Registered IRQ %d as PPS source\n",
+		data->irq);
 
 	return 0;
 }

drivers/pps/clients/pps-ktimer.c

@@ -56,7 +56,7 @@ static struct pps_source_info pps_ktimer_info = {
 
 static void __exit pps_ktimer_exit(void)
 {
-	dev_info(pps->dev, "ktimer PPS source unregistered\n");
+	dev_dbg(&pps->dev, "ktimer PPS source unregistered\n");
 
 	del_timer_sync(&ktimer);
 	pps_unregister_source(pps);
@@ -74,7 +74,7 @@ static int __init pps_ktimer_init(void)
 	timer_setup(&ktimer, pps_ktimer_event, 0);
 	mod_timer(&ktimer, jiffies + HZ);
 
-	dev_info(pps->dev, "ktimer PPS source registered\n");
+	dev_dbg(&pps->dev, "ktimer PPS source registered\n");
 
 	return 0;
 }

drivers/pps/clients/pps-ldisc.c

@@ -32,7 +32,7 @@ static void pps_tty_dcd_change(struct tty_struct *tty, unsigned int status)
 	pps_event(pps, &ts, status ? PPS_CAPTUREASSERT :
 			PPS_CAPTURECLEAR, NULL);
 
-	dev_dbg(pps->dev, "PPS %s at %lu\n",
+	dev_dbg(&pps->dev, "PPS %s at %lu\n",
 			status ? "assert" : "clear", jiffies);
 }
 
@@ -69,7 +69,7 @@ static int pps_tty_open(struct tty_struct *tty)
 		goto err_unregister;
 	}
 
-	dev_info(pps->dev, "source \"%s\" added\n", info.path);
+	dev_dbg(&pps->dev, "source \"%s\" added\n", info.path);
 
 	return 0;
 
@@ -89,7 +89,7 @@ static void pps_tty_close(struct tty_struct *tty)
 	if (WARN_ON(!pps))
 		return;
 
-	dev_info(pps->dev, "removed\n");
+	dev_info(&pps->dev, "removed\n");
 	pps_unregister_source(pps);
 }
 

drivers/pps/clients/pps_parport.c

@@ -81,7 +81,7 @@ static void parport_irq(void *handle)
 	/* check the signal (no signal means the pulse is lost this time) */
 	if (!signal_is_set(port)) {
 		local_irq_restore(flags);
-		dev_err(dev->pps->dev, "lost the signal\n");
+		dev_err(&dev->pps->dev, "lost the signal\n");
 		goto out_assert;
 	}
 
@@ -98,7 +98,7 @@ static void parport_irq(void *handle)
 	/* timeout */
 	dev->cw_err++;
 	if (dev->cw_err >= CLEAR_WAIT_MAX_ERRORS) {
-		dev_err(dev->pps->dev, "disabled clear edge capture after %d"
+		dev_err(&dev->pps->dev, "disabled clear edge capture after %d"
 				" timeouts\n", dev->cw_err);
 		dev->cw = 0;
 		dev->cw_err = 0;

drivers/pps/kapi.c

@@ -41,7 +41,7 @@ static void pps_add_offset(struct pps_ktime *ts, struct pps_ktime *offset)
 static void pps_echo_client_default(struct pps_device *pps, int event,
 		void *data)
 {
-	dev_info(pps->dev, "echo %s %s\n",
+	dev_info(&pps->dev, "echo %s %s\n",
 		event & PPS_CAPTUREASSERT ? "assert" : "",
 		event & PPS_CAPTURECLEAR ? "clear" : "");
 }
@@ -112,7 +112,7 @@ struct pps_device *pps_register_source(struct pps_source_info *info,
 		goto kfree_pps;
 	}
 
-	dev_info(pps->dev, "new PPS source %s\n", info->name);
+	dev_dbg(&pps->dev, "new PPS source %s\n", info->name);
 
 	return pps;
 
@@ -166,7 +166,7 @@ void pps_event(struct pps_device *pps, struct pps_event_time *ts, int event,
 	/* check event type */
 	BUG_ON((event & (PPS_CAPTUREASSERT | PPS_CAPTURECLEAR)) == 0);
 
-	dev_dbg(pps->dev, "PPS event at %lld.%09ld\n",
+	dev_dbg(&pps->dev, "PPS event at %lld.%09ld\n",
 			(s64)ts->ts_real.tv_sec, ts->ts_real.tv_nsec);
 
 	timespec_to_pps_ktime(&ts_real, ts->ts_real);
@@ -188,7 +188,7 @@ void pps_event(struct pps_device *pps, struct pps_event_time *ts, int event,
 		/* Save the time stamp */
 		pps->assert_tu = ts_real;
 		pps->assert_sequence++;
-		dev_dbg(pps->dev, "capture assert seq #%u\n",
+		dev_dbg(&pps->dev, "capture assert seq #%u\n",
 			pps->assert_sequence);
 
 		captured = ~0;
@@ -202,7 +202,7 @@ void pps_event(struct pps_device *pps, struct pps_event_time *ts, int event,
 		/* Save the time stamp */
 		pps->clear_tu = ts_real;
 		pps->clear_sequence++;
-		dev_dbg(pps->dev, "capture clear seq #%u\n",
+		dev_dbg(&pps->dev, "capture clear seq #%u\n",
 			pps->clear_sequence);
 
 		captured = ~0;

drivers/pps/kc.c

@@ -43,11 +43,11 @@ int pps_kc_bind(struct pps_device *pps, struct pps_bind_args *bind_args)
 			pps_kc_hardpps_mode = 0;
 			pps_kc_hardpps_dev = NULL;
 			spin_unlock_irq(&pps_kc_hardpps_lock);
-			dev_info(pps->dev, "unbound kernel"
+			dev_info(&pps->dev, "unbound kernel"
 					" consumer\n");
 		} else {
 			spin_unlock_irq(&pps_kc_hardpps_lock);
-			dev_err(pps->dev, "selected kernel consumer"
+			dev_err(&pps->dev, "selected kernel consumer"
 					" is not bound\n");
 			return -EINVAL;
 		}
@@ -57,11 +57,11 @@ int pps_kc_bind(struct pps_device *pps, struct pps_bind_args *bind_args)
 			pps_kc_hardpps_mode = bind_args->edge;
 			pps_kc_hardpps_dev = pps;
 			spin_unlock_irq(&pps_kc_hardpps_lock);
-			dev_info(pps->dev, "bound kernel consumer: "
+			dev_info(&pps->dev, "bound kernel consumer: "
 				"edge=0x%x\n", bind_args->edge);
 		} else {
 			spin_unlock_irq(&pps_kc_hardpps_lock);
-			dev_err(pps->dev, "another kernel consumer"
+			dev_err(&pps->dev, "another kernel consumer"
 					" is already bound\n");
 			return -EINVAL;
 		}
@@ -83,7 +83,7 @@ void pps_kc_remove(struct pps_device *pps)
 		pps_kc_hardpps_mode = 0;
 		pps_kc_hardpps_dev = NULL;
 		spin_unlock_irq(&pps_kc_hardpps_lock);
-		dev_info(pps->dev, "unbound kernel consumer"
+		dev_info(&pps->dev, "unbound kernel consumer"
 				" on device removal\n");
 	} else
 		spin_unlock_irq(&pps_kc_hardpps_lock);

drivers/pps/pps.c

@@ -25,7 +25,7 @@
  * Local variables
  */
 
-static dev_t pps_devt;
+static int pps_major;
 static struct class *pps_class;
 
 static DEFINE_MUTEX(pps_idr_lock);
@@ -62,7 +62,7 @@ static int pps_cdev_pps_fetch(struct pps_device *pps, struct pps_fdata *fdata)
 	else {
 		unsigned long ticks;
 
-		dev_dbg(pps->dev, "timeout %lld.%09d\n",
+		dev_dbg(&pps->dev, "timeout %lld.%09d\n",
 				(long long) fdata->timeout.sec,
 				fdata->timeout.nsec);
 		ticks = fdata->timeout.sec * HZ;
@@ -80,7 +80,7 @@ static int pps_cdev_pps_fetch(struct pps_device *pps, struct pps_fdata *fdata)
 
 	/* Check for pending signals */
 	if (err == -ERESTARTSYS) {
-		dev_dbg(pps->dev, "pending signal caught\n");
+		dev_dbg(&pps->dev, "pending signal caught\n");
 		return -EINTR;
 	}
 
@@ -98,7 +98,7 @@ static long pps_cdev_ioctl(struct file *file,
 
 	switch (cmd) {
 	case PPS_GETPARAMS:
-		dev_dbg(pps->dev, "PPS_GETPARAMS\n");
+		dev_dbg(&pps->dev, "PPS_GETPARAMS\n");
 
 		spin_lock_irq(&pps->lock);
 
@@ -114,7 +114,7 @@ static long pps_cdev_ioctl(struct file *file,
 		break;
 
 	case PPS_SETPARAMS:
-		dev_dbg(pps->dev, "PPS_SETPARAMS\n");
+		dev_dbg(&pps->dev, "PPS_SETPARAMS\n");
 
 		/* Check the capabilities */
 		if (!capable(CAP_SYS_TIME))
@@ -124,14 +124,14 @@ static long pps_cdev_ioctl(struct file *file,
 		if (err)
 			return -EFAULT;
 		if (!(params.mode & (PPS_CAPTUREASSERT | PPS_CAPTURECLEAR))) {
-			dev_dbg(pps->dev, "capture mode unspecified (%x)\n",
+			dev_dbg(&pps->dev, "capture mode unspecified (%x)\n",
 								params.mode);
 			return -EINVAL;
 		}
 
 		/* Check for supported capabilities */
 		if ((params.mode & ~pps->info.mode) != 0) {
-			dev_dbg(pps->dev, "unsupported capabilities (%x)\n",
+			dev_dbg(&pps->dev, "unsupported capabilities (%x)\n",
 								params.mode);
 			return -EINVAL;
 		}
@@ -144,7 +144,7 @@ static long pps_cdev_ioctl(struct file *file,
 		/* Restore the read only parameters */
 		if ((params.mode & (PPS_TSFMT_TSPEC | PPS_TSFMT_NTPFP)) == 0) {
 			/* section 3.3 of RFC 2783 interpreted */
-			dev_dbg(pps->dev, "time format unspecified (%x)\n",
+			dev_dbg(&pps->dev, "time format unspecified (%x)\n",
 								params.mode);
 			pps->params.mode |= PPS_TSFMT_TSPEC;
 		}
@@ -165,7 +165,7 @@ static long pps_cdev_ioctl(struct file *file,
 		break;
 
 	case PPS_GETCAP:
-		dev_dbg(pps->dev, "PPS_GETCAP\n");
+		dev_dbg(&pps->dev, "PPS_GETCAP\n");
 
 		err = put_user(pps->info.mode, iuarg);
 		if (err)
@@ -176,7 +176,7 @@ static long pps_cdev_ioctl(struct file *file,
 	case PPS_FETCH: {
 		struct pps_fdata fdata;
 
-		dev_dbg(pps->dev, "PPS_FETCH\n");
+		dev_dbg(&pps->dev, "PPS_FETCH\n");
 
 		err = copy_from_user(&fdata, uarg, sizeof(struct pps_fdata));
 		if (err)
@@ -206,7 +206,7 @@ static long pps_cdev_ioctl(struct file *file,
 	case PPS_KC_BIND: {
 		struct pps_bind_args bind_args;
 
-		dev_dbg(pps->dev, "PPS_KC_BIND\n");
+		dev_dbg(&pps->dev, "PPS_KC_BIND\n");
 
 		/* Check the capabilities */
 		if (!capable(CAP_SYS_TIME))
@@ -218,7 +218,7 @@ static long pps_cdev_ioctl(struct file *file,
 
 		/* Check for supported capabilities */
 		if ((bind_args.edge & ~pps->info.mode) != 0) {
-			dev_err(pps->dev, "unsupported capabilities (%x)\n",
+			dev_err(&pps->dev, "unsupported capabilities (%x)\n",
 					bind_args.edge);
 			return -EINVAL;
 		}
@@ -227,7 +227,7 @@ static long pps_cdev_ioctl(struct file *file,
 		if (bind_args.tsformat != PPS_TSFMT_TSPEC ||
 				(bind_args.edge & ~PPS_CAPTUREBOTH) != 0 ||
 				bind_args.consumer != PPS_KC_HARDPPS) {
-			dev_err(pps->dev, "invalid kernel consumer bind"
+			dev_err(&pps->dev, "invalid kernel consumer bind"
 					" parameters (%x)\n", bind_args.edge);
 			return -EINVAL;
 		}
@@ -259,7 +259,7 @@ static long pps_cdev_compat_ioctl(struct file *file,
 		struct pps_fdata fdata;
 		int err;
 
-		dev_dbg(pps->dev, "PPS_FETCH\n");
+		dev_dbg(&pps->dev, "PPS_FETCH\n");
 
 		err = copy_from_user(&compat, uarg, sizeof(struct pps_fdata_compat));
 		if (err)
@@ -296,20 +296,36 @@ static long pps_cdev_compat_ioctl(struct file *file,
 #define pps_cdev_compat_ioctl	NULL
 #endif
 
+static struct pps_device *pps_idr_get(unsigned long id)
+{
+	struct pps_device *pps;
+
+	mutex_lock(&pps_idr_lock);
+	pps = idr_find(&pps_idr, id);
+	if (pps)
+		get_device(&pps->dev);
+
+	mutex_unlock(&pps_idr_lock);
+	return pps;
+}
+
 static int pps_cdev_open(struct inode *inode, struct file *file)
 {
-	struct pps_device *pps = container_of(inode->i_cdev,
-						struct pps_device, cdev);
+	struct pps_device *pps = pps_idr_get(iminor(inode));
+
+	if (!pps)
+		return -ENODEV;
+
 	file->private_data = pps;
-	kobject_get(&pps->dev->kobj);
 	return 0;
 }
 
 static int pps_cdev_release(struct inode *inode, struct file *file)
 {
-	struct pps_device *pps = container_of(inode->i_cdev,
-						struct pps_device, cdev);
-	kobject_put(&pps->dev->kobj);
+	struct pps_device *pps = file->private_data;
+
+	WARN_ON(pps->id != iminor(inode));
+	put_device(&pps->dev);
 	return 0;
 }
 
@@ -332,22 +348,13 @@ static void pps_device_destruct(struct device *dev)
 {
 	struct pps_device *pps = dev_get_drvdata(dev);
 
-	cdev_del(&pps->cdev);
-
-	/* Now we can release the ID for re-use */
 	pr_debug("deallocating pps%d\n", pps->id);
-	mutex_lock(&pps_idr_lock);
-	idr_remove(&pps_idr, pps->id);
-	mutex_unlock(&pps_idr_lock);
-
-	kfree(dev);
 	kfree(pps);
 }
 
 int pps_register_cdev(struct pps_device *pps)
 {
 	int err;
-	dev_t devt;
 
 	mutex_lock(&pps_idr_lock);
 	/*
@@ -364,40 +371,29 @@ int pps_register_cdev(struct pps_device *pps)
 		goto out_unlock;
 	}
 	pps->id = err;
-	mutex_unlock(&pps_idr_lock);
 
-	devt = MKDEV(MAJOR(pps_devt), pps->id);
-
-	cdev_init(&pps->cdev, &pps_cdev_fops);
-	pps->cdev.owner = pps->info.owner;
-
-	err = cdev_add(&pps->cdev, devt, 1);
-	if (err) {
-		pr_err("%s: failed to add char device %d:%d\n",
-				pps->info.name, MAJOR(pps_devt), pps->id);
+	pps->dev.class = pps_class;
+	pps->dev.parent = pps->info.dev;
+	pps->dev.devt = MKDEV(pps_major, pps->id);
+	dev_set_drvdata(&pps->dev, pps);
+	dev_set_name(&pps->dev, "pps%d", pps->id);
+	err = device_register(&pps->dev);
+	if (err)
 		goto free_idr;
-	}
-	pps->dev = device_create(pps_class, pps->info.dev, devt, pps,
-							"pps%d", pps->id);
-	if (IS_ERR(pps->dev)) {
-		err = PTR_ERR(pps->dev);
-		goto del_cdev;
-	}
 
 	/* Override the release function with our own */
-	pps->dev->release = pps_device_destruct;
+	pps->dev.release = pps_device_destruct;
 
-	pr_debug("source %s got cdev (%d:%d)\n", pps->info.name,
-			MAJOR(pps_devt), pps->id);
+	pr_debug("source %s got cdev (%d:%d)\n", pps->info.name, pps_major,
+		 pps->id);
 
+	get_device(&pps->dev);
+	mutex_unlock(&pps_idr_lock);
 	return 0;
 
-del_cdev:
-	cdev_del(&pps->cdev);
-
 free_idr:
-	mutex_lock(&pps_idr_lock);
 	idr_remove(&pps_idr, pps->id);
+	put_device(&pps->dev);
 out_unlock:
 	mutex_unlock(&pps_idr_lock);
 	return err;
@@ -407,7 +403,13 @@ void pps_unregister_cdev(struct pps_device *pps)
 {
 	pr_debug("unregistering pps%d\n", pps->id);
 	pps->lookup_cookie = NULL;
-	device_destroy(pps_class, pps->dev->devt);
+	device_destroy(pps_class, pps->dev.devt);
+
+	/* Now we can release the ID for re-use */
+	mutex_lock(&pps_idr_lock);
+	idr_remove(&pps_idr, pps->id);
+	put_device(&pps->dev);
+	mutex_unlock(&pps_idr_lock);
 }
 
 /*
@@ -427,6 +429,11 @@ void pps_unregister_cdev(struct pps_device *pps)
  * so that it will not be used again, even if the pps device cannot
  * be removed from the idr due to pending references holding the minor
  * number in use.
+ *
+ * Since pps_idr holds a reference to the device, the returned
+ * pps_device is guaranteed to be valid until pps_unregister_cdev() is
+ * called on it. But after calling pps_unregister_cdev(), it may be
+ * freed at any time.
  */
 struct pps_device *pps_lookup_dev(void const *cookie)
 {
@@ -449,13 +456,11 @@ EXPORT_SYMBOL(pps_lookup_dev);
 static void __exit pps_exit(void)
 {
 	class_destroy(pps_class);
-	unregister_chrdev_region(pps_devt, PPS_MAX_SOURCES);
+	__unregister_chrdev(pps_major, 0, PPS_MAX_SOURCES, "pps");
 }
 
 static int __init pps_init(void)
 {
-	int err;
-
 	pps_class = class_create(THIS_MODULE, "pps");
 	if (IS_ERR(pps_class)) {
 		pr_err("failed to allocate class\n");
@@ -463,8 +468,9 @@ static int __init pps_init(void)
 	}
 	pps_class->dev_groups = pps_groups;
 
-	err = alloc_chrdev_region(&pps_devt, 0, PPS_MAX_SOURCES, "pps");
-	if (err < 0) {
+	pps_major = __register_chrdev(0, 0, PPS_MAX_SOURCES, "pps",
+				      &pps_cdev_fops);
+	if (pps_major < 0) {
 		pr_err("failed to allocate char device region\n");
 		goto remove_class;
 	}
@@ -477,8 +483,7 @@ static int __init pps_init(void)
 
 remove_class:
 	class_destroy(pps_class);
-
-	return err;
+	return pps_major;
 }
 
 subsys_initcall(pps_init);

drivers/ptp/ptp_ocp.c

@@ -3589,7 +3589,7 @@ ptp_ocp_complete(struct ptp_ocp *bp)
 
 	pps = pps_lookup_dev(bp->ptp);
 	if (pps)
-		ptp_ocp_symlink(bp, pps->dev, "pps");
+		ptp_ocp_symlink(bp, &pps->dev, "pps");
 
 	ptp_ocp_debugfs_add_device(bp);
 

drivers/ufs/core/ufs_bsg.c

@@ -216,6 +216,7 @@ void ufs_bsg_remove(struct ufs_hba *hba)
 		return;
 
 	bsg_remove_queue(hba->bsg_queue);
+	hba->bsg_queue = NULL;
 
 	device_del(bsg_dev);
 	put_device(bsg_dev);

drivers/usb/dwc3/gadget.c

@@ -2478,10 +2478,38 @@ static int dwc3_gadget_run_stop(struct dwc3 *dwc, int is_on)
 {
 	u32			reg;
 	u32			timeout = 2000;
+	u32			saved_config = 0;
 
 	if (pm_runtime_suspended(dwc->dev))
 		return 0;
 
+	/*
+	 * When operating in USB 2.0 speeds (HS/FS), ensure that
+	 * GUSB2PHYCFG.ENBLSLPM and GUSB2PHYCFG.SUSPHY are cleared before starting
+	 * or stopping the controller. This resolves timeout issues that occur
+	 * during frequent role switches between host and device modes.
+	 *
+	 * Save and clear these settings, then restore them after completing the
+	 * controller start or stop sequence.
+	 *
+	 * This solution was discovered through experimentation as it is not
+	 * mentioned in the dwc3 programming guide. It has been tested on an
+	 * Exynos platforms.
+	 */
+	reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(0));
+	if (reg & DWC3_GUSB2PHYCFG_SUSPHY) {
+		saved_config |= DWC3_GUSB2PHYCFG_SUSPHY;
+		reg &= ~DWC3_GUSB2PHYCFG_SUSPHY;
+	}
+
+	if (reg & DWC3_GUSB2PHYCFG_ENBLSLPM) {
+		saved_config |= DWC3_GUSB2PHYCFG_ENBLSLPM;
+		reg &= ~DWC3_GUSB2PHYCFG_ENBLSLPM;
+	}
+
+	if (saved_config)
+		dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(0), reg);
+
 	reg = dwc3_readl(dwc->regs, DWC3_DCTL);
 	if (is_on) {
 		if (DWC3_VER_IS_WITHIN(DWC3, ANY, 187A)) {
@@ -2509,6 +2537,12 @@ static int dwc3_gadget_run_stop(struct dwc3 *dwc, int is_on)
 		reg &= DWC3_DSTS_DEVCTRLHLT;
 	} while (--timeout && !(!is_on ^ !reg));
 
+	if (saved_config) {
+		reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(0));
+		reg |= saved_config;
+		dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(0), reg);
+	}
+
 	if (!timeout)
 		return -ETIMEDOUT;
 

drivers/vfio/pci/vfio_pci_rdwr.c

@@ -16,6 +16,7 @@
 #include <linux/io.h>
 #include <linux/vfio.h>
 #include <linux/vgaarb.h>
+#include <linux/io-64-nonatomic-lo-hi.h>
 
 #include "vfio_pci_priv.h"
 

drivers/video/fbdev/omap/lcd_dma.c

@@ -432,8 +432,8 @@ static int __init omap_init_lcd_dma(void)
 
 	spin_lock_init(&lcd_dma.lock);
 
-	r = request_irq(INT_DMA_LCD, lcd_dma_irq_handler, 0,
-			"LCD DMA", NULL);
+	r = request_threaded_irq(INT_DMA_LCD, NULL, lcd_dma_irq_handler,
+				 IRQF_ONESHOT, "LCD DMA", NULL);
 	if (r != 0)
 		pr_err("unable to request IRQ for LCD DMA (error %d)\n", r);
 

drivers/xen/swiotlb-xen.c

@@ -74,19 +74,21 @@ static inline phys_addr_t xen_dma_to_phys(struct device *dev,
 	return xen_bus_to_phys(dev, dma_to_phys(dev, dma_addr));
 }
 
+static inline bool range_requires_alignment(phys_addr_t p, size_t size)
+{
+	phys_addr_t algn = 1ULL << (get_order(size) + PAGE_SHIFT);
+	phys_addr_t bus_addr = pfn_to_bfn(XEN_PFN_DOWN(p)) << XEN_PAGE_SHIFT;
+
+	return IS_ALIGNED(p, algn) && !IS_ALIGNED(bus_addr, algn);
+}
+
 static inline int range_straddles_page_boundary(phys_addr_t p, size_t size)
 {
 	unsigned long next_bfn, xen_pfn = XEN_PFN_DOWN(p);
 	unsigned int i, nr_pages = XEN_PFN_UP(xen_offset_in_page(p) + size);
-	phys_addr_t algn = 1ULL << (get_order(size) + PAGE_SHIFT);
 
 	next_bfn = pfn_to_bfn(xen_pfn);
 
-	/* If buffer is physically aligned, ensure DMA alignment. */
-	if (IS_ALIGNED(p, algn) &&
-	    !IS_ALIGNED((phys_addr_t)next_bfn << XEN_PAGE_SHIFT, algn))
-		return 1;
-
 	for (i = 1; i < nr_pages; i++)
 		if (pfn_to_bfn(++xen_pfn) != ++next_bfn)
 			return 1;
@@ -155,7 +157,8 @@ xen_swiotlb_alloc_coherent(struct device *dev, size_t size,
 
 	*dma_handle = xen_phys_to_dma(dev, phys);
 	if (*dma_handle + size - 1 > dma_mask ||
-	    range_straddles_page_boundary(phys, size)) {
+	    range_straddles_page_boundary(phys, size) ||
+	    range_requires_alignment(phys, size)) {
 		if (xen_create_contiguous_region(phys, order, fls64(dma_mask),
 				dma_handle) != 0)
 			goto out_free_pages;
@@ -181,7 +184,8 @@ xen_swiotlb_free_coherent(struct device *dev, size_t size, void *vaddr,
 	size = ALIGN(size, XEN_PAGE_SIZE);
 
 	if (WARN_ON_ONCE(dma_handle + size - 1 > dev->coherent_dma_mask) ||
-	    WARN_ON_ONCE(range_straddles_page_boundary(phys, size)))
+	    WARN_ON_ONCE(range_straddles_page_boundary(phys, size) ||
+			 range_requires_alignment(phys, size)))
 	    	return;
 
 	if (TestClearPageXenRemapped(virt_to_page(vaddr)))

fs/btrfs/inode.c

@@ -7387,8 +7387,6 @@ noinline int can_nocow_extent(struct inode *inode, u64 offset, u64 *len,
 			ret = -EAGAIN;
 			goto out;
 		}
-
-		cond_resched();
 	}
 
 	if (orig_start)
@@ -11370,6 +11368,8 @@ static int btrfs_swap_activate(struct swap_info_struct *sis, struct file *file,
 		}
 
 		start += len;
+
+		cond_resched();
 	}
 
 	if (bsi.block_len)

fs/nfsd/nfs2acl.c

@@ -84,6 +84,8 @@ out:
 fail:
 	posix_acl_release(resp->acl_access);
 	posix_acl_release(resp->acl_default);
+	resp->acl_access = NULL;
+	resp->acl_default = NULL;
 	goto out;
 }
 

fs/nfsd/nfs3acl.c

@@ -76,6 +76,8 @@ out:
 fail:
 	posix_acl_release(resp->acl_access);
 	posix_acl_release(resp->acl_default);
+	resp->acl_access = NULL;
+	resp->acl_default = NULL;
 	goto out;
 }
 

fs/nfsd/nfs4callback.c

@@ -1410,8 +1410,11 @@ nfsd4_run_cb_work(struct work_struct *work)
 		nfsd4_process_cb_update(cb);
 
 	clnt = clp->cl_cb_client;
-	if (!clnt) {
-		/* Callback channel broken, or client killed; give up: */
+	if (!clnt || clp->cl_state == NFSD4_COURTESY) {
+		/*
+		 * Callback channel broken, client killed or
+		 * nfs4_client in courtesy state; give up.
+		 */
 		nfsd41_destroy_cb(cb);
 		return;
 	}

fs/orangefs/orangefs-debugfs.c

@@ -393,9 +393,9 @@ static ssize_t orangefs_debug_write(struct file *file,
 	 * Thwart users who try to jamb a ridiculous number
 	 * of bytes into the debug file...
 	 */
-	if (count > ORANGEFS_MAX_DEBUG_STRING_LEN + 1) {
+	if (count > ORANGEFS_MAX_DEBUG_STRING_LEN) {
 		silly = count;
-		count = ORANGEFS_MAX_DEBUG_STRING_LEN + 1;
+		count = ORANGEFS_MAX_DEBUG_STRING_LEN;
 	}
 
 	buf = kzalloc(ORANGEFS_MAX_DEBUG_STRING_LEN, GFP_KERNEL);

include/linux/pps_kernel.h

@@ -56,8 +56,7 @@ struct pps_device {
 
 	unsigned int id;			/* PPS source unique ID */
 	void const *lookup_cookie;		/* For pps_lookup_dev() only */
-	struct cdev cdev;
-	struct device *dev;
+	struct device dev;
 	struct fasync_struct *async_queue;	/* fasync method */
 	spinlock_t lock;
 };

include/net/l3mdev.h

@@ -198,10 +198,12 @@ struct sk_buff *l3mdev_l3_out(struct sock *sk, struct sk_buff *skb, u16 proto)
 	if (netif_is_l3_slave(dev)) {
 		struct net_device *master;
 
+		rcu_read_lock();
 		master = netdev_master_upper_dev_get_rcu(dev);
 		if (master && master->l3mdev_ops->l3mdev_l3_out)
 			skb = master->l3mdev_ops->l3mdev_l3_out(master, sk,
 								skb, proto);
+		rcu_read_unlock();
 	}
 
 	return skb;

kernel/cgroup/rstat.c

@@ -461,7 +461,6 @@ static void root_cgroup_cputime(struct cgroup_base_stat *bstat)
 
 		cputime->sum_exec_runtime += user;
 		cputime->sum_exec_runtime += sys;
-		cputime->sum_exec_runtime += cpustat[CPUTIME_STEAL];
 
 #ifdef CONFIG_SCHED_CORE
 		bstat->forceidle_sum += cpustat[CPUTIME_FORCEIDLE];

net/ax25/af_ax25.c

@@ -685,6 +685,15 @@ static int ax25_setsockopt(struct socket *sock, int level, int optname,
 			break;
 		}
 
+		if (ax25->ax25_dev) {
+			if (dev == ax25->ax25_dev->dev) {
+				rcu_read_unlock();
+				break;
+			}
+			netdev_put(ax25->ax25_dev->dev, &ax25->dev_tracker);
+			ax25_dev_put(ax25->ax25_dev);
+		}
+
 		ax25->ax25_dev = ax25_dev_ax25dev(dev);
 		if (!ax25->ax25_dev) {
 			rcu_read_unlock();
@@ -692,6 +701,8 @@ static int ax25_setsockopt(struct socket *sock, int level, int optname,
 			break;
 		}
 		ax25_fillin_cb(ax25, ax25->ax25_dev);
+		netdev_hold(dev, &ax25->dev_tracker, GFP_ATOMIC);
+		ax25_dev_hold(ax25->ax25_dev);
 		rcu_read_unlock();
 		break;
 

net/batman-adv/bat_v.c

@@ -113,8 +113,6 @@ static void
 batadv_v_hardif_neigh_init(struct batadv_hardif_neigh_node *hardif_neigh)
 {
 	ewma_throughput_init(&hardif_neigh->bat_v.throughput);
-	INIT_WORK(&hardif_neigh->bat_v.metric_work,
-		  batadv_v_elp_throughput_metric_update);
 }
 
 /**

net/batman-adv/bat_v_elp.c

@@ -18,6 +18,7 @@
 #include <linux/if_ether.h>
 #include <linux/jiffies.h>
 #include <linux/kref.h>
+#include <linux/list.h>
 #include <linux/minmax.h>
 #include <linux/netdevice.h>
 #include <linux/nl80211.h>
@@ -27,6 +28,7 @@
 #include <linux/rcupdate.h>
 #include <linux/rtnetlink.h>
 #include <linux/skbuff.h>
+#include <linux/slab.h>
 #include <linux/stddef.h>
 #include <linux/string.h>
 #include <linux/types.h>
@@ -42,6 +44,18 @@
 #include "routing.h"
 #include "send.h"
 
+/**
+ * struct batadv_v_metric_queue_entry - list of hardif neighbors which require
+ *  and metric update
+ */
+struct batadv_v_metric_queue_entry {
+	/** @hardif_neigh: hardif neighbor scheduled for metric update */
+	struct batadv_hardif_neigh_node *hardif_neigh;
+
+	/** @list: list node for metric_queue */
+	struct list_head list;
+};
+
 /**
  * batadv_v_elp_start_timer() - restart timer for ELP periodic work
  * @hard_iface: the interface for which the timer has to be reset
@@ -60,25 +74,36 @@ static void batadv_v_elp_start_timer(struct batadv_hard_iface *hard_iface)
 /**
  * batadv_v_elp_get_throughput() - get the throughput towards a neighbour
  * @neigh: the neighbour for which the throughput has to be obtained
+ * @pthroughput: calculated throughput towards the given neighbour in multiples
+ *  of 100kpbs (a value of '1' equals 0.1Mbps, '10' equals 1Mbps, etc).
  *
- * Return: The throughput towards the given neighbour in multiples of 100kpbs
- *         (a value of '1' equals 0.1Mbps, '10' equals 1Mbps, etc).
+ * Return: true when value behind @pthroughput was set
  */
-static u32 batadv_v_elp_get_throughput(struct batadv_hardif_neigh_node *neigh)
+static bool batadv_v_elp_get_throughput(struct batadv_hardif_neigh_node *neigh,
+					u32 *pthroughput)
 {
 	struct batadv_hard_iface *hard_iface = neigh->if_incoming;
+	struct net_device *soft_iface = hard_iface->soft_iface;
 	struct ethtool_link_ksettings link_settings;
 	struct net_device *real_netdev;
 	struct station_info sinfo;
 	u32 throughput;
 	int ret;
 
+	/* don't query throughput when no longer associated with any
+	 * batman-adv interface
+	 */
+	if (!soft_iface)
+		return false;
+
 	/* if the user specified a customised value for this interface, then
 	 * return it directly
 	 */
 	throughput =  atomic_read(&hard_iface->bat_v.throughput_override);
-	if (throughput != 0)
-		return throughput;
+	if (throughput != 0) {
+		*pthroughput = throughput;
+		return true;
+	}
 
 	/* if this is a wireless device, then ask its throughput through
 	 * cfg80211 API
@@ -105,27 +130,39 @@ static u32 batadv_v_elp_get_throughput(struct batadv_hardif_neigh_node *neigh)
 			 * possible to delete this neighbor. For now set
 			 * the throughput metric to 0.
 			 */
-			return 0;
+			*pthroughput = 0;
+			return true;
 		}
 		if (ret)
 			goto default_throughput;
 
-		if (sinfo.filled & BIT(NL80211_STA_INFO_EXPECTED_THROUGHPUT))
-			return sinfo.expected_throughput / 100;
+		if (sinfo.filled & BIT(NL80211_STA_INFO_EXPECTED_THROUGHPUT)) {
+			*pthroughput = sinfo.expected_throughput / 100;
+			return true;
+		}
 
 		/* try to estimate the expected throughput based on reported tx
 		 * rates
 		 */
-		if (sinfo.filled & BIT(NL80211_STA_INFO_TX_BITRATE))
-			return cfg80211_calculate_bitrate(&sinfo.txrate) / 3;
+		if (sinfo.filled & BIT(NL80211_STA_INFO_TX_BITRATE)) {
+			*pthroughput = cfg80211_calculate_bitrate(&sinfo.txrate) / 3;
+			return true;
+		}
 
 		goto default_throughput;
 	}
 
+	/* only use rtnl_trylock because the elp worker will be cancelled while
+	 * the rntl_lock is held. the cancel_delayed_work_sync() would otherwise
+	 * wait forever when the elp work_item was started and it is then also
+	 * trying to rtnl_lock
+	 */
+	if (!rtnl_trylock())
+		return false;
+
 	/* if not a wifi interface, check if this device provides data via
 	 * ethtool (e.g. an Ethernet adapter)
 	 */
-	rtnl_lock();
 	ret = __ethtool_get_link_ksettings(hard_iface->net_dev, &link_settings);
 	rtnl_unlock();
 	if (ret == 0) {
@@ -136,13 +173,15 @@ static u32 batadv_v_elp_get_throughput(struct batadv_hardif_neigh_node *neigh)
 			hard_iface->bat_v.flags &= ~BATADV_FULL_DUPLEX;
 
 		throughput = link_settings.base.speed;
-		if (throughput && throughput != SPEED_UNKNOWN)
-			return throughput * 10;
+		if (throughput && throughput != SPEED_UNKNOWN) {
+			*pthroughput = throughput * 10;
+			return true;
+		}
 	}
 
 default_throughput:
 	if (!(hard_iface->bat_v.flags & BATADV_WARNING_DEFAULT)) {
-		batadv_info(hard_iface->soft_iface,
+		batadv_info(soft_iface,
 			    "WiFi driver or ethtool info does not provide information about link speeds on interface %s, therefore defaulting to hardcoded throughput values of %u.%1u Mbps. Consider overriding the throughput manually or checking your driver.\n",
 			    hard_iface->net_dev->name,
 			    BATADV_THROUGHPUT_DEFAULT_VALUE / 10,
@@ -151,31 +190,26 @@ default_throughput:
 	}
 
 	/* if none of the above cases apply, return the base_throughput */
-	return BATADV_THROUGHPUT_DEFAULT_VALUE;
+	*pthroughput = BATADV_THROUGHPUT_DEFAULT_VALUE;
+	return true;
 }
 
 /**
  * batadv_v_elp_throughput_metric_update() - worker updating the throughput
  *  metric of a single hop neighbour
- * @work: the work queue item
+ * @neigh: the neighbour to probe
  */
-void batadv_v_elp_throughput_metric_update(struct work_struct *work)
+static void
+batadv_v_elp_throughput_metric_update(struct batadv_hardif_neigh_node *neigh)
 {
-	struct batadv_hardif_neigh_node_bat_v *neigh_bat_v;
-	struct batadv_hardif_neigh_node *neigh;
+	u32 throughput;
+	bool valid;
 
-	neigh_bat_v = container_of(work, struct batadv_hardif_neigh_node_bat_v,
-				   metric_work);
-	neigh = container_of(neigh_bat_v, struct batadv_hardif_neigh_node,
-			     bat_v);
+	valid = batadv_v_elp_get_throughput(neigh, &throughput);
+	if (!valid)
+		return;
 
-	ewma_throughput_add(&neigh->bat_v.throughput,
-			    batadv_v_elp_get_throughput(neigh));
-
-	/* decrement refcounter to balance increment performed before scheduling
-	 * this task
-	 */
-	batadv_hardif_neigh_put(neigh);
+	ewma_throughput_add(&neigh->bat_v.throughput, throughput);
 }
 
 /**
@@ -249,14 +283,16 @@ batadv_v_elp_wifi_neigh_probe(struct batadv_hardif_neigh_node *neigh)
  */
 static void batadv_v_elp_periodic_work(struct work_struct *work)
 {
+	struct batadv_v_metric_queue_entry *metric_entry;
+	struct batadv_v_metric_queue_entry *metric_safe;
 	struct batadv_hardif_neigh_node *hardif_neigh;
 	struct batadv_hard_iface *hard_iface;
 	struct batadv_hard_iface_bat_v *bat_v;
 	struct batadv_elp_packet *elp_packet;
+	struct list_head metric_queue;
 	struct batadv_priv *bat_priv;
 	struct sk_buff *skb;
 	u32 elp_interval;
-	bool ret;
 
 	bat_v = container_of(work, struct batadv_hard_iface_bat_v, elp_wq.work);
 	hard_iface = container_of(bat_v, struct batadv_hard_iface, bat_v);
@@ -292,6 +328,8 @@ static void batadv_v_elp_periodic_work(struct work_struct *work)
 
 	atomic_inc(&hard_iface->bat_v.elp_seqno);
 
+	INIT_LIST_HEAD(&metric_queue);
+
 	/* The throughput metric is updated on each sent packet. This way, if a
 	 * node is dead and no longer sends packets, batman-adv is still able to
 	 * react timely to its death.
@@ -316,16 +354,28 @@ static void batadv_v_elp_periodic_work(struct work_struct *work)
 
 		/* Reading the estimated throughput from cfg80211 is a task that
 		 * may sleep and that is not allowed in an rcu protected
-		 * context. Therefore schedule a task for that.
+		 * context. Therefore add it to metric_queue and process it
+		 * outside rcu protected context.
 		 */
-		ret = queue_work(batadv_event_workqueue,
-				 &hardif_neigh->bat_v.metric_work);
-
-		if (!ret)
+		metric_entry = kzalloc(sizeof(*metric_entry), GFP_ATOMIC);
+		if (!metric_entry) {
 			batadv_hardif_neigh_put(hardif_neigh);
+			continue;
+		}
+
+		metric_entry->hardif_neigh = hardif_neigh;
+		list_add(&metric_entry->list, &metric_queue);
 	}
 	rcu_read_unlock();
 
+	list_for_each_entry_safe(metric_entry, metric_safe, &metric_queue, list) {
+		batadv_v_elp_throughput_metric_update(metric_entry->hardif_neigh);
+
+		batadv_hardif_neigh_put(metric_entry->hardif_neigh);
+		list_del(&metric_entry->list);
+		kfree(metric_entry);
+	}
+
 restart_timer:
 	batadv_v_elp_start_timer(hard_iface);
 out:

net/batman-adv/bat_v_elp.h

@@ -10,7 +10,6 @@
 #include "main.h"
 
 #include <linux/skbuff.h>
-#include <linux/workqueue.h>
 
 int batadv_v_elp_iface_enable(struct batadv_hard_iface *hard_iface);
 void batadv_v_elp_iface_disable(struct batadv_hard_iface *hard_iface);
@@ -19,6 +18,5 @@ void batadv_v_elp_iface_activate(struct batadv_hard_iface *primary_iface,
 void batadv_v_elp_primary_iface_set(struct batadv_hard_iface *primary_iface);
 int batadv_v_elp_packet_recv(struct sk_buff *skb,
 			     struct batadv_hard_iface *if_incoming);
-void batadv_v_elp_throughput_metric_update(struct work_struct *work);
 
 #endif /* _NET_BATMAN_ADV_BAT_V_ELP_H_ */

net/batman-adv/types.h

@@ -596,9 +596,6 @@ struct batadv_hardif_neigh_node_bat_v {
 	 *  neighbor
 	 */
 	unsigned long last_unicast_tx;
-
-	/** @metric_work: work queue callback item for metric update */
-	struct work_struct metric_work;
 };
 
 /**

net/ipv6/ndisc.c

@@ -1684,7 +1684,7 @@ void ndisc_send_redirect(struct sk_buff *skb, const struct in6_addr *target)
 	bool ret;
 
 	if (netif_is_l3_master(skb->dev)) {
-		dev = __dev_get_by_index(dev_net(skb->dev), IPCB(skb)->iif);
+		dev = dev_get_by_index_rcu(dev_net(skb->dev), IPCB(skb)->iif);
 		if (!dev)
 			return;
 	}

sound/soc/intel/boards/bytcr_rt5640.c

@@ -1122,7 +1122,22 @@ static const struct dmi_system_id byt_rt5640_quirk_table[] = {
 					BYT_RT5640_SSP0_AIF2 |
 					BYT_RT5640_MCLK_EN),
 	},
-	{	/* Vexia Edu Atla 10 tablet */
+	{
+		/* Vexia Edu Atla 10 tablet 5V version */
+		.matches = {
+			/* Having all 3 of these not set is somewhat unique */
+			DMI_MATCH(DMI_SYS_VENDOR, "To be filled by O.E.M."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "To be filled by O.E.M."),
+			DMI_MATCH(DMI_BOARD_NAME, "To be filled by O.E.M."),
+			/* Above strings are too generic, also match on BIOS date */
+			DMI_MATCH(DMI_BIOS_DATE, "05/14/2015"),
+		},
+		.driver_data = (void *)(BYTCR_INPUT_DEFAULTS |
+					BYT_RT5640_JD_NOT_INV |
+					BYT_RT5640_SSP0_AIF1 |
+					BYT_RT5640_MCLK_EN),
+	},
+	{	/* Vexia Edu Atla 10 tablet 9V version */
 		.matches = {
 			DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
 			DMI_MATCH(DMI_BOARD_NAME, "Aptio CRB"),

tools/testing/selftests/gpio/gpio-sim.sh

@@ -46,12 +46,6 @@ remove_chip() {
 	rmdir $CONFIGFS_DIR/$CHIP || fail "Unable to remove the chip"
 }
 
-configfs_cleanup() {
-	for CHIP in `ls $CONFIGFS_DIR/`; do
-		remove_chip $CHIP
-	done
-}
-
 create_chip() {
 	local CHIP=$1
 
@@ -105,6 +99,13 @@ disable_chip() {
 	echo 0 > $CONFIGFS_DIR/$CHIP/live || fail "Unable to disable the chip"
 }
 
+configfs_cleanup() {
+	for CHIP in `ls $CONFIGFS_DIR/`; do
+		disable_chip $CHIP
+		remove_chip $CHIP
+	done
+}
+
 configfs_chip_name() {
 	local CHIP=$1
 	local BANK=$2
@@ -181,6 +182,7 @@ create_chip chip
 create_bank chip bank
 enable_chip chip
 test -n `cat $CONFIGFS_DIR/chip/bank/chip_name` || fail "chip_name doesn't work"
+disable_chip chip
 remove_chip chip
 
 echo "1.2. chip_name returns 'none' if the chip is still pending"
@@ -195,6 +197,7 @@ create_chip chip
 create_bank chip bank
 enable_chip chip
 test -n `cat $CONFIGFS_DIR/chip/dev_name` || fail "dev_name doesn't work"
+disable_chip chip
 remove_chip chip
 
 echo "2. Creating and configuring simulated chips"
@@ -204,6 +207,7 @@ create_chip chip
 create_bank chip bank
 enable_chip chip
 test "`get_chip_num_lines chip bank`" = "1" || fail "default number of lines is not 1"
+disable_chip chip
 remove_chip chip
 
 echo "2.2. Number of lines can be specified"
@@ -212,6 +216,7 @@ create_bank chip bank
 set_num_lines chip bank 16
 enable_chip chip
 test "`get_chip_num_lines chip bank`" = "16" || fail "number of lines is not 16"
+disable_chip chip
 remove_chip chip
 
 echo "2.3. Label can be set"
@@ -220,6 +225,7 @@ create_bank chip bank
 set_label chip bank foobar
 enable_chip chip
 test "`get_chip_label chip bank`" = "foobar" || fail "label is incorrect"
+disable_chip chip
 remove_chip chip
 
 echo "2.4. Label can be left empty"
@@ -227,6 +233,7 @@ create_chip chip
 create_bank chip bank
 enable_chip chip
 test -z "`cat $CONFIGFS_DIR/chip/bank/label`" || fail "label is not empty"
+disable_chip chip
 remove_chip chip
 
 echo "2.5. Line names can be configured"
@@ -238,6 +245,7 @@ set_line_name chip bank 2 bar
 enable_chip chip
 test "`get_line_name chip bank 0`" = "foo" || fail "line name is incorrect"
 test "`get_line_name chip bank 2`" = "bar" || fail "line name is incorrect"
+disable_chip chip
 remove_chip chip
 
 echo "2.6. Line config can remain unused if offset is greater than number of lines"
@@ -248,6 +256,7 @@ set_line_name chip bank 5 foobar
 enable_chip chip
 test "`get_line_name chip bank 0`" = "" || fail "line name is incorrect"
 test "`get_line_name chip bank 1`" = "" || fail "line name is incorrect"
+disable_chip chip
 remove_chip chip
 
 echo "2.7. Line configfs directory names are sanitized"
@@ -267,6 +276,7 @@ for CHIP in $CHIPS; do
 	enable_chip $CHIP
 done
 for CHIP in $CHIPS; do
+  disable_chip $CHIP
 	remove_chip $CHIP
 done
 
@@ -278,6 +288,7 @@ echo foobar > $CONFIGFS_DIR/chip/bank/label 2> /dev/null && \
 	fail "Setting label of a live chip should fail"
 echo 8 > $CONFIGFS_DIR/chip/bank/num_lines 2> /dev/null && \
 	fail "Setting number of lines of a live chip should fail"
+disable_chip chip
 remove_chip chip
 
 echo "2.10. Can't create line items when chip is live"
@@ -285,6 +296,7 @@ create_chip chip
 create_bank chip bank
 enable_chip chip
 mkdir $CONFIGFS_DIR/chip/bank/line0 2> /dev/null && fail "Creating line item should fail"
+disable_chip chip
 remove_chip chip
 
 echo "2.11. Probe errors are propagated to user-space"
@@ -316,6 +328,7 @@ mkdir -p $CONFIGFS_DIR/chip/bank/line4/hog
 enable_chip chip
 $BASE_DIR/gpio-mockup-cdev -s 1 /dev/`configfs_chip_name chip bank` 4 2> /dev/null && \
 	fail "Setting the value of a hogged line shouldn't succeed"
+disable_chip chip
 remove_chip chip
 
 echo "3. Controlling simulated chips"
@@ -331,6 +344,7 @@ test "$?" = "1" || fail "pull set incorrectly"
 sysfs_set_pull chip bank 0 pull-down
 $BASE_DIR/gpio-mockup-cdev /dev/`configfs_chip_name chip bank` 1
 test "$?" = "0" || fail "pull set incorrectly"
+disable_chip chip
 remove_chip chip
 
 echo "3.2. Pull can be read from sysfs"
@@ -344,6 +358,7 @@ SYSFS_PATH=/sys/devices/platform/$DEVNAME/$CHIPNAME/sim_gpio0/pull
 test `cat $SYSFS_PATH` = "pull-down" || fail "reading the pull failed"
 sysfs_set_pull chip bank 0 pull-up
 test `cat $SYSFS_PATH` = "pull-up" || fail "reading the pull failed"
+disable_chip chip
 remove_chip chip
 
 echo "3.3. Incorrect input in sysfs is rejected"
@@ -355,6 +370,7 @@ DEVNAME=`configfs_dev_name chip`
 CHIPNAME=`configfs_chip_name chip bank`
 SYSFS_PATH="/sys/devices/platform/$DEVNAME/$CHIPNAME/sim_gpio0/pull"
 echo foobar > $SYSFS_PATH 2> /dev/null && fail "invalid input not detected"
+disable_chip chip
 remove_chip chip
 
 echo "3.4. Can't write to value"
@@ -365,6 +381,7 @@ DEVNAME=`configfs_dev_name chip`
 CHIPNAME=`configfs_chip_name chip bank`
 SYSFS_PATH="/sys/devices/platform/$DEVNAME/$CHIPNAME/sim_gpio0/value"
 echo 1 > $SYSFS_PATH 2> /dev/null && fail "writing to 'value' succeeded unexpectedly"
+disable_chip chip
 remove_chip chip
 
 echo "4. Simulated GPIO chips are functional"
@@ -382,6 +399,7 @@ $BASE_DIR/gpio-mockup-cdev -s 1 /dev/`configfs_chip_name chip bank` 0 &
 sleep 0.1 # FIXME Any better way?
 test `cat $SYSFS_PATH` = "1" || fail "incorrect value read from sysfs"
 kill $!
+disable_chip chip
 remove_chip chip
 
 echo "4.2. Bias settings work correctly"
@@ -394,6 +412,7 @@ CHIPNAME=`configfs_chip_name chip bank`
 SYSFS_PATH="/sys/devices/platform/$DEVNAME/$CHIPNAME/sim_gpio0/value"
 $BASE_DIR/gpio-mockup-cdev -b pull-up /dev/`configfs_chip_name chip bank` 0
 test `cat $SYSFS_PATH` = "1" || fail "bias setting does not work"
+disable_chip chip
 remove_chip chip
 
 echo "GPIO $MODULE test PASS"

tools/tracing/rtla/src/timerlat_hist.c

@@ -786,6 +786,14 @@ static int stop_tracing;
 static struct trace_instance *hist_inst = NULL;
 static void stop_hist(int sig)
 {
+	if (stop_tracing) {
+		/*
+		 * Stop requested twice in a row; abort event processing and
+		 * exit immediately
+		 */
+		tracefs_iterate_stop(hist_inst->inst);
+		return;
+	}
 	stop_tracing = 1;
 	if (hist_inst)
 		trace_instance_stop(hist_inst);

tools/tracing/rtla/src/timerlat_top.c

@@ -578,6 +578,14 @@ static int stop_tracing;
 static struct trace_instance *top_inst = NULL;
 static void stop_top(int sig)
 {
+	if (stop_tracing) {
+		/*
+		 * Stop requested twice in a row; abort event processing and
+		 * exit immediately
+		 */
+		tracefs_iterate_stop(top_inst->inst);
+		return;
+	}
 	stop_tracing = 1;
 	if (top_inst)
 		trace_instance_stop(top_inst);