Merge 7d42e98182 ("Merge tag 'gpio-fixes-for-v5.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux") into android-mainline

Steps on the way to 5.15-rc3

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ife2fb5a9ff2ee97675da424c72bb5889736a6a62

MAINTAINERS

@@ -977,12 +977,12 @@ L:	platform-driver-x86@vger.kernel.org
 S:	Maintained
 F:	drivers/platform/x86/amd-pmc.*
 
-AMD POWERPLAY
+AMD POWERPLAY AND SWSMU
 M:	Evan Quan <evan.quan@amd.com>
 L:	amd-gfx@lists.freedesktop.org
 S:	Supported
 T:	git https://gitlab.freedesktop.org/agd5f/linux.git
-F:	drivers/gpu/drm/amd/pm/powerplay/
+F:	drivers/gpu/drm/amd/pm/
 
 AMD PTDMA DRIVER
 M:	Sanjay R Mehta <sanju.mehta@amd.com>

arch/arm64/include/asm/acpi.h

@@ -50,9 +50,6 @@ pgprot_t __acpi_get_mem_attribute(phys_addr_t addr);
 void __iomem *acpi_os_ioremap(acpi_physical_address phys, acpi_size size);
 #define acpi_os_ioremap acpi_os_ioremap
 
-void __iomem *acpi_os_memmap(acpi_physical_address phys, acpi_size size);
-#define acpi_os_memmap acpi_os_memmap
-
 typedef u64 phys_cpuid_t;
 #define PHYS_CPUID_INVALID INVALID_HWID
 

arch/arm64/include/asm/assembler.h

@@ -525,6 +525,11 @@ alternative_endif
 #define EXPORT_SYMBOL_NOKASAN(name)	EXPORT_SYMBOL(name)
 #endif
 
+#ifdef CONFIG_KASAN_HW_TAGS
+#define EXPORT_SYMBOL_NOHWKASAN(name)
+#else
+#define EXPORT_SYMBOL_NOHWKASAN(name)	EXPORT_SYMBOL_NOKASAN(name)
+#endif
 	/*
 	 * Emit a 64-bit absolute little endian symbol reference in a way that
 	 * ensures that it will be resolved at build time, even when building a

arch/arm64/include/asm/mte.h

@@ -99,11 +99,17 @@ void mte_check_tfsr_el1(void);
 
 static inline void mte_check_tfsr_entry(void)
 {
+	if (!system_supports_mte())
+		return;
+
 	mte_check_tfsr_el1();
 }
 
 static inline void mte_check_tfsr_exit(void)
 {
+	if (!system_supports_mte())
+		return;
+
 	/*
 	 * The asynchronous faults are sync'ed automatically with
 	 * TFSR_EL1 on kernel entry but for exit an explicit dsb()

arch/arm64/include/asm/string.h

@@ -12,11 +12,13 @@ extern char *strrchr(const char *, int c);
 #define __HAVE_ARCH_STRCHR
 extern char *strchr(const char *, int c);
 
+#ifndef CONFIG_KASAN_HW_TAGS
 #define __HAVE_ARCH_STRCMP
 extern int strcmp(const char *, const char *);
 
 #define __HAVE_ARCH_STRNCMP
 extern int strncmp(const char *, const char *, __kernel_size_t);
+#endif
 
 #define __HAVE_ARCH_STRLEN
 extern __kernel_size_t strlen(const char *);

arch/arm64/kernel/acpi.c

@@ -273,8 +273,7 @@ pgprot_t __acpi_get_mem_attribute(phys_addr_t addr)
 	return __pgprot(PROT_DEVICE_nGnRnE);
 }
 
-static void __iomem *__acpi_os_ioremap(acpi_physical_address phys,
-				       acpi_size size, bool memory)
+void __iomem *acpi_os_ioremap(acpi_physical_address phys, acpi_size size)
 {
 	efi_memory_desc_t *md, *region = NULL;
 	pgprot_t prot;
@@ -300,11 +299,9 @@ static void __iomem *__acpi_os_ioremap(acpi_physical_address phys,
 	 * It is fine for AML to remap regions that are not represented in the
 	 * EFI memory map at all, as it only describes normal memory, and MMIO
 	 * regions that require a virtual mapping to make them accessible to
-	 * the EFI runtime services. Determine the region default
-	 * attributes by checking the requested memory semantics.
+	 * the EFI runtime services.
 	 */
-	prot = memory ? __pgprot(PROT_NORMAL_NC) :
-			__pgprot(PROT_DEVICE_nGnRnE);
+	prot = __pgprot(PROT_DEVICE_nGnRnE);
 	if (region) {
 		switch (region->type) {
 		case EFI_LOADER_CODE:
@@ -364,16 +361,6 @@ static void __iomem *__acpi_os_ioremap(acpi_physical_address phys,
 	return __ioremap(phys, size, prot);
 }
 
-void __iomem *acpi_os_ioremap(acpi_physical_address phys, acpi_size size)
-{
-	return __acpi_os_ioremap(phys, size, false);
-}
-
-void __iomem *acpi_os_memmap(acpi_physical_address phys, acpi_size size)
-{
-	return __acpi_os_ioremap(phys, size, true);
-}
-
 /*
  * Claim Synchronous External Aborts as a firmware first notification.
  *

arch/arm64/kernel/cpufeature.c

@@ -1526,9 +1526,13 @@ static bool unmap_kernel_at_el0(const struct arm64_cpu_capabilities *entry,
 	/*
 	 * For reasons that aren't entirely clear, enabling KPTI on Cavium
 	 * ThunderX leads to apparent I-cache corruption of kernel text, which
-	 * ends as well as you might imagine. Don't even try.
+	 * ends as well as you might imagine. Don't even try. We cannot rely
+	 * on the cpus_have_*cap() helpers here to detect the CPU erratum
+	 * because cpucap detection order may change. However, since we know
+	 * affected CPUs are always in a homogeneous configuration, it is
+	 * safe to rely on this_cpu_has_cap() here.
 	 */
-	if (cpus_have_const_cap(ARM64_WORKAROUND_CAVIUM_27456)) {
+	if (this_cpu_has_cap(ARM64_WORKAROUND_CAVIUM_27456)) {
 		str = "ARM64_WORKAROUND_CAVIUM_27456";
 		__kpti_forced = -1;
 	}

arch/arm64/kernel/mte.c

@@ -142,12 +142,7 @@ void mte_enable_kernel_async(void)
 #ifdef CONFIG_KASAN_HW_TAGS
 void mte_check_tfsr_el1(void)
 {
-	u64 tfsr_el1;
-
-	if (!system_supports_mte())
-		return;
-
-	tfsr_el1 = read_sysreg_s(SYS_TFSR_EL1);
+	u64 tfsr_el1 = read_sysreg_s(SYS_TFSR_EL1);
 
 	if (unlikely(tfsr_el1 & SYS_TFSR_EL1_TF1)) {
 		/*
@@ -199,6 +194,9 @@ void mte_thread_init_user(void)
 
 void mte_thread_switch(struct task_struct *next)
 {
+	if (!system_supports_mte())
+		return;
+
 	mte_update_sctlr_user(next);
 
 	/*

arch/arm64/lib/strcmp.S

@@ -173,4 +173,4 @@ L(done):
 	ret
 
 SYM_FUNC_END_PI(strcmp)
-EXPORT_SYMBOL_NOKASAN(strcmp)
+EXPORT_SYMBOL_NOHWKASAN(strcmp)

arch/arm64/lib/strncmp.S

@@ -258,4 +258,4 @@ L(ret0):
 	ret
 
 SYM_FUNC_END_PI(strncmp)
-EXPORT_SYMBOL_NOKASAN(strncmp)
+EXPORT_SYMBOL_NOHWKASAN(strncmp)

drivers/acpi/osl.c

@@ -284,8 +284,7 @@ acpi_map_lookup_virt(void __iomem *virt, acpi_size size)
 #define should_use_kmap(pfn)   page_is_ram(pfn)
 #endif
 
-static void __iomem *acpi_map(acpi_physical_address pg_off, unsigned long pg_sz,
-			      bool memory)
+static void __iomem *acpi_map(acpi_physical_address pg_off, unsigned long pg_sz)
 {
 	unsigned long pfn;
 
@@ -295,8 +294,7 @@ static void __iomem *acpi_map(acpi_physical_address pg_off, unsigned long pg_sz,
 			return NULL;
 		return (void __iomem __force *)kmap(pfn_to_page(pfn));
 	} else
-		return memory ? acpi_os_memmap(pg_off, pg_sz) :
-				acpi_os_ioremap(pg_off, pg_sz);
+		return acpi_os_ioremap(pg_off, pg_sz);
 }
 
 static void acpi_unmap(acpi_physical_address pg_off, void __iomem *vaddr)
@@ -311,10 +309,9 @@ static void acpi_unmap(acpi_physical_address pg_off, void __iomem *vaddr)
 }
 
 /**
- * __acpi_os_map_iomem - Get a virtual address for a given physical address range.
+ * acpi_os_map_iomem - Get a virtual address for a given physical address range.
  * @phys: Start of the physical address range to map.
  * @size: Size of the physical address range to map.
- * @memory: true if remapping memory, false if IO
  *
  * Look up the given physical address range in the list of existing ACPI memory
  * mappings.  If found, get a reference to it and return a pointer to it (its
@@ -324,8 +321,8 @@ static void acpi_unmap(acpi_physical_address pg_off, void __iomem *vaddr)
  * During early init (when acpi_permanent_mmap has not been set yet) this
  * routine simply calls __acpi_map_table() to get the job done.
  */
-static void __iomem __ref
-*__acpi_os_map_iomem(acpi_physical_address phys, acpi_size size, bool memory)
+void __iomem __ref
+*acpi_os_map_iomem(acpi_physical_address phys, acpi_size size)
 {
 	struct acpi_ioremap *map;
 	void __iomem *virt;
@@ -356,7 +353,7 @@ static void __iomem __ref
 
 	pg_off = round_down(phys, PAGE_SIZE);
 	pg_sz = round_up(phys + size, PAGE_SIZE) - pg_off;
-	virt = acpi_map(phys, size, memory);
+	virt = acpi_map(phys, size);
 	if (!virt) {
 		mutex_unlock(&acpi_ioremap_lock);
 		kfree(map);
@@ -375,17 +372,11 @@ out:
 	mutex_unlock(&acpi_ioremap_lock);
 	return map->virt + (phys - map->phys);
 }
-
-void __iomem *__ref
-acpi_os_map_iomem(acpi_physical_address phys, acpi_size size)
-{
-	return __acpi_os_map_iomem(phys, size, false);
-}
 EXPORT_SYMBOL_GPL(acpi_os_map_iomem);
 
 void *__ref acpi_os_map_memory(acpi_physical_address phys, acpi_size size)
 {
-	return (void *)__acpi_os_map_iomem(phys, size, true);
+	return (void *)acpi_os_map_iomem(phys, size);
 }
 EXPORT_SYMBOL_GPL(acpi_os_map_memory);
 

drivers/base/swnode.c

@@ -1116,6 +1116,9 @@ int device_create_managed_software_node(struct device *dev,
 	to_swnode(fwnode)->managed = true;
 	set_secondary_fwnode(dev, fwnode);
 
+	if (device_is_registered(dev))
+		software_node_notify(dev);
+
 	return 0;
 }
 EXPORT_SYMBOL_GPL(device_create_managed_software_node);

drivers/gpio/gpio-aspeed-sgpio.c

@@ -395,7 +395,7 @@ static void aspeed_sgpio_irq_handler(struct irq_desc *desc)
 		reg = ioread32(bank_reg(data, bank, reg_irq_status));
 
 		for_each_set_bit(p, &reg, 32)
-			generic_handle_domain_irq(gc->irq.domain, i * 32 + p);
+			generic_handle_domain_irq(gc->irq.domain, i * 32 + p * 2);
 	}
 
 	chained_irq_exit(ic, desc);

drivers/gpio/gpio-rockchip.c

@@ -141,7 +141,7 @@ static int rockchip_gpio_get_direction(struct gpio_chip *chip,
 	u32 data;
 
 	data = rockchip_gpio_readl_bit(bank, offset, bank->gpio_regs->port_ddr);
-	if (data & BIT(offset))
+	if (data)
 		return GPIO_LINE_DIRECTION_OUT;
 
 	return GPIO_LINE_DIRECTION_IN;
@@ -195,7 +195,7 @@ static int rockchip_gpio_set_debounce(struct gpio_chip *gc,
 	unsigned int cur_div_reg;
 	u64 div;
 
-	if (!IS_ERR(bank->db_clk)) {
+	if (bank->gpio_type == GPIO_TYPE_V2 && !IS_ERR(bank->db_clk)) {
 		div_debounce_support = true;
 		freq = clk_get_rate(bank->db_clk);
 		max_debounce = (GENMASK(23, 0) + 1) * 2 * 1000000 / freq;

drivers/gpio/gpio-uniphier.c

@@ -184,7 +184,7 @@ static void uniphier_gpio_irq_mask(struct irq_data *data)
 
 	uniphier_gpio_reg_update(priv, UNIPHIER_GPIO_IRQ_EN, mask, 0);
 
-	return irq_chip_mask_parent(data);
+	irq_chip_mask_parent(data);
 }
 
 static void uniphier_gpio_irq_unmask(struct irq_data *data)
@@ -194,7 +194,7 @@ static void uniphier_gpio_irq_unmask(struct irq_data *data)
 
 	uniphier_gpio_reg_update(priv, UNIPHIER_GPIO_IRQ_EN, mask, mask);
 
-	return irq_chip_unmask_parent(data);
+	irq_chip_unmask_parent(data);
 }
 
 static int uniphier_gpio_irq_set_type(struct irq_data *data, unsigned int type)

drivers/gpio/gpiolib-acpi.c

@@ -313,9 +313,11 @@ static struct gpio_desc *acpi_request_own_gpiod(struct gpio_chip *chip,
 
 	ret = gpio_set_debounce_timeout(desc, agpio->debounce_timeout);
 	if (ret)
-		gpiochip_free_own_desc(desc);
+		dev_warn(chip->parent,
+			 "Failed to set debounce-timeout for pin 0x%04X, err %d\n",
+			 pin, ret);
 
-	return ret ? ERR_PTR(ret) : desc;
+	return desc;
 }
 
 static bool acpi_gpio_in_ignore_list(const char *controller_in, int pin_in)

drivers/gpu/drm/amd/amdkfd/kfd_device.c

@@ -971,7 +971,6 @@ out:
 void kgd2kfd_device_exit(struct kfd_dev *kfd)
 {
 	if (kfd->init_complete) {
-		svm_migrate_fini((struct amdgpu_device *)kfd->kgd);
 		device_queue_manager_uninit(kfd->dqm);
 		kfd_interrupt_exit(kfd);
 		kfd_topology_remove_device(kfd);

drivers/gpu/drm/amd/amdkfd/kfd_migrate.c

@@ -891,9 +891,16 @@ int svm_migrate_init(struct amdgpu_device *adev)
 	pgmap->ops = &svm_migrate_pgmap_ops;
 	pgmap->owner = SVM_ADEV_PGMAP_OWNER(adev);
 	pgmap->flags = MIGRATE_VMA_SELECT_DEVICE_PRIVATE;
+
+	/* Device manager releases device-specific resources, memory region and
+	 * pgmap when driver disconnects from device.
+	 */
 	r = devm_memremap_pages(adev->dev, pgmap);
 	if (IS_ERR(r)) {
 		pr_err("failed to register HMM device memory\n");
+
+		/* Disable SVM support capability */
+		pgmap->type = 0;
 		devm_release_mem_region(adev->dev, res->start,
 					res->end - res->start + 1);
 		return PTR_ERR(r);
@@ -908,12 +915,3 @@ int svm_migrate_init(struct amdgpu_device *adev)
 
 	return 0;
 }
-
-void svm_migrate_fini(struct amdgpu_device *adev)
-{
-	struct dev_pagemap *pgmap = &adev->kfd.dev->pgmap;
-
-	devm_memunmap_pages(adev->dev, pgmap);
-	devm_release_mem_region(adev->dev, pgmap->range.start,
-				pgmap->range.end - pgmap->range.start + 1);
-}

drivers/gpu/drm/amd/amdkfd/kfd_migrate.h

@@ -47,7 +47,6 @@ unsigned long
 svm_migrate_addr_to_pfn(struct amdgpu_device *adev, unsigned long addr);
 
 int svm_migrate_init(struct amdgpu_device *adev);
-void svm_migrate_fini(struct amdgpu_device *adev);
 
 #else
 
@@ -55,10 +54,6 @@ static inline int svm_migrate_init(struct amdgpu_device *adev)
 {
 	return 0;
 }
-static inline void svm_migrate_fini(struct amdgpu_device *adev)
-{
-	/* empty */
-}
 
 #endif /* IS_ENABLED(CONFIG_HSA_AMD_SVM) */
 

drivers/gpu/drm/amd/amdkfd/kfd_svm.c

@@ -118,6 +118,13 @@ static void svm_range_remove_notifier(struct svm_range *prange)
 		mmu_interval_notifier_remove(&prange->notifier);
 }
 
+static bool
+svm_is_valid_dma_mapping_addr(struct device *dev, dma_addr_t dma_addr)
+{
+	return dma_addr && !dma_mapping_error(dev, dma_addr) &&
+	       !(dma_addr & SVM_RANGE_VRAM_DOMAIN);
+}
+
 static int
 svm_range_dma_map_dev(struct amdgpu_device *adev, struct svm_range *prange,
 		      unsigned long offset, unsigned long npages,
@@ -139,8 +146,7 @@ svm_range_dma_map_dev(struct amdgpu_device *adev, struct svm_range *prange,
 
 	addr += offset;
 	for (i = 0; i < npages; i++) {
-		if (WARN_ONCE(addr[i] && !dma_mapping_error(dev, addr[i]),
-			      "leaking dma mapping\n"))
+		if (svm_is_valid_dma_mapping_addr(dev, addr[i]))
 			dma_unmap_page(dev, addr[i], PAGE_SIZE, dir);
 
 		page = hmm_pfn_to_page(hmm_pfns[i]);
@@ -209,7 +215,7 @@ void svm_range_dma_unmap(struct device *dev, dma_addr_t *dma_addr,
 		return;
 
 	for (i = offset; i < offset + npages; i++) {
-		if (!dma_addr[i] || dma_mapping_error(dev, dma_addr[i]))
+		if (!svm_is_valid_dma_mapping_addr(dev, dma_addr[i]))
 			continue;
 		pr_debug("dma unmapping 0x%llx\n", dma_addr[i] >> PAGE_SHIFT);
 		dma_unmap_page(dev, dma_addr[i], PAGE_SIZE, dir);
@@ -1165,7 +1171,7 @@ svm_range_map_to_gpu(struct amdgpu_device *adev, struct amdgpu_vm *vm,
 	unsigned long last_start;
 	int last_domain;
 	int r = 0;
-	int64_t i;
+	int64_t i, j;
 
 	last_start = prange->start + offset;
 
@@ -1178,7 +1184,11 @@ svm_range_map_to_gpu(struct amdgpu_device *adev, struct amdgpu_vm *vm,
 	for (i = offset; i < offset + npages; i++) {
 		last_domain = dma_addr[i] & SVM_RANGE_VRAM_DOMAIN;
 		dma_addr[i] &= ~SVM_RANGE_VRAM_DOMAIN;
-		if ((prange->start + i) < prange->last &&
+
+		/* Collect all pages in the same address range and memory domain
+		 * that can be mapped with a single call to update mapping.
+		 */
+		if (i < offset + npages - 1 &&
 		    last_domain == (dma_addr[i + 1] & SVM_RANGE_VRAM_DOMAIN))
 			continue;
 
@@ -1201,6 +1211,10 @@ svm_range_map_to_gpu(struct amdgpu_device *adev, struct amdgpu_vm *vm,
 						NULL, dma_addr,
 						&vm->last_update,
 						&table_freed);
+
+		for (j = last_start - prange->start; j <= i; j++)
+			dma_addr[j] |= last_domain;
+
 		if (r) {
 			pr_debug("failed %d to map to gpu 0x%lx\n", r, prange->start);
 			goto out;

drivers/gpu/drm/amd/display/dc/dce/dce_aux.c

@@ -42,7 +42,7 @@
 #define DC_LOGGER \
 	engine->ctx->logger
 
-#define DC_TRACE_LEVEL_MESSAGE(...) /* do nothing */
+#define DC_TRACE_LEVEL_MESSAGE(...) do { } while (0)
 #define IS_DC_I2CAUX_LOGGING_ENABLED() (false)
 #define LOG_FLAG_Error_I2cAux LOG_ERROR
 #define LOG_FLAG_I2cAux_DceAux LOG_I2C_AUX
@@ -76,7 +76,7 @@ enum {
 #define DEFAULT_AUX_ENGINE_MULT   0
 #define DEFAULT_AUX_ENGINE_LENGTH 69
 
-#define DC_TRACE_LEVEL_MESSAGE(...) /* do nothing */
+#define DC_TRACE_LEVEL_MESSAGE(...) do { } while (0)
 
 static void release_engine(
 	struct dce_aux *engine)

drivers/gpu/drm/amd/pm/powerplay/si_dpm.c

@@ -6867,6 +6867,8 @@ static int si_dpm_enable(struct amdgpu_device *adev)
 	si_enable_auto_throttle_source(adev, AMDGPU_DPM_AUTO_THROTTLE_SRC_THERMAL, true);
 	si_thermal_start_thermal_controller(adev);
 
+	ni_update_current_ps(adev, boot_ps);
+
 	return 0;
 }
 

drivers/gpu/drm/i915/display/intel_bw.c

@@ -222,31 +222,42 @@ static int icl_sagv_max_dclk(const struct intel_qgv_info *qi)
 
 struct intel_sa_info {
 	u16 displayrtids;
-	u8 deburst, deprogbwlimit;
+	u8 deburst, deprogbwlimit, derating;
 };
 
 static const struct intel_sa_info icl_sa_info = {
 	.deburst = 8,
 	.deprogbwlimit = 25, /* GB/s */
 	.displayrtids = 128,
+	.derating = 10,
 };
 
 static const struct intel_sa_info tgl_sa_info = {
 	.deburst = 16,
 	.deprogbwlimit = 34, /* GB/s */
 	.displayrtids = 256,
+	.derating = 10,
 };
 
 static const struct intel_sa_info rkl_sa_info = {
 	.deburst = 16,
 	.deprogbwlimit = 20, /* GB/s */
 	.displayrtids = 128,
+	.derating = 10,
 };
 
 static const struct intel_sa_info adls_sa_info = {
 	.deburst = 16,
 	.deprogbwlimit = 38, /* GB/s */
 	.displayrtids = 256,
+	.derating = 10,
+};
+
+static const struct intel_sa_info adlp_sa_info = {
+	.deburst = 16,
+	.deprogbwlimit = 38, /* GB/s */
+	.displayrtids = 256,
+	.derating = 20,
 };
 
 static int icl_get_bw_info(struct drm_i915_private *dev_priv, const struct intel_sa_info *sa)
@@ -302,7 +313,7 @@ static int icl_get_bw_info(struct drm_i915_private *dev_priv, const struct intel
 			bw = icl_calc_bw(sp->dclk, clpchgroup * 32 * num_channels, ct);
 
 			bi->deratedbw[j] = min(maxdebw,
-					       bw * 9 / 10); /* 90% */
+					       bw * (100 - sa->derating) / 100);
 
 			drm_dbg_kms(&dev_priv->drm,
 				    "BW%d / QGV %d: num_planes=%d deratedbw=%u\n",
@@ -400,7 +411,9 @@ void intel_bw_init_hw(struct drm_i915_private *dev_priv)
 
 	if (IS_DG2(dev_priv))
 		dg2_get_bw_info(dev_priv);
-	else if (IS_ALDERLAKE_S(dev_priv) || IS_ALDERLAKE_P(dev_priv))
+	else if (IS_ALDERLAKE_P(dev_priv))
+		icl_get_bw_info(dev_priv, &adlp_sa_info);
+	else if (IS_ALDERLAKE_S(dev_priv))
 		icl_get_bw_info(dev_priv, &adls_sa_info);
 	else if (IS_ROCKETLAKE(dev_priv))
 		icl_get_bw_info(dev_priv, &rkl_sa_info);

drivers/gpu/drm/i915/display/intel_dmc.c

@@ -805,11 +805,14 @@ void intel_dmc_ucode_resume(struct drm_i915_private *dev_priv)
  */
 void intel_dmc_ucode_fini(struct drm_i915_private *dev_priv)
 {
+	int id;
+
 	if (!HAS_DMC(dev_priv))
 		return;
 
 	intel_dmc_ucode_suspend(dev_priv);
 	drm_WARN_ON(&dev_priv->drm, dev_priv->dmc.wakeref);
 
-	kfree(dev_priv->dmc.dmc_info[DMC_FW_MAIN].payload);
+	for (id = 0; id < DMC_FW_MAX; id++)
+		kfree(dev_priv->dmc.dmc_info[id].payload);
 }

drivers/gpu/drm/i915/gem/i915_gem_ttm.c

@@ -356,11 +356,8 @@ static void i915_ttm_delete_mem_notify(struct ttm_buffer_object *bo)
 {
 	struct drm_i915_gem_object *obj = i915_ttm_to_gem(bo);
 
-	if (likely(obj)) {
-		/* This releases all gem object bindings to the backend. */
+	if (likely(obj))
 		i915_ttm_free_cached_io_st(obj);
-		__i915_gem_free_object(obj);
-	}
 }
 
 static struct intel_memory_region *
@@ -875,8 +872,12 @@ void i915_ttm_bo_destroy(struct ttm_buffer_object *bo)
 {
 	struct drm_i915_gem_object *obj = i915_ttm_to_gem(bo);
 
+	/* This releases all gem object bindings to the backend. */
+	__i915_gem_free_object(obj);
+
 	i915_gem_object_release_memory_region(obj);
 	mutex_destroy(&obj->ttm.get_io_page.lock);
+
 	if (obj->ttm.created)
 		call_rcu(&obj->rcu, __i915_gem_free_object_rcu);
 }

fs/ceph/caps.c

@@ -2263,7 +2263,7 @@ retry:
 			list_for_each_entry(req, &ci->i_unsafe_dirops,
 					    r_unsafe_dir_item) {
 				s = req->r_session;
-				if (unlikely(s->s_mds > max)) {
+				if (unlikely(s->s_mds >= max)) {
 					spin_unlock(&ci->i_unsafe_lock);
 					goto retry;
 				}
@@ -2277,7 +2277,7 @@ retry:
 			list_for_each_entry(req, &ci->i_unsafe_iops,
 					    r_unsafe_target_item) {
 				s = req->r_session;
-				if (unlikely(s->s_mds > max)) {
+				if (unlikely(s->s_mds >= max)) {
 					spin_unlock(&ci->i_unsafe_lock);
 					goto retry;
 				}

fs/ext2/balloc.c

@@ -48,10 +48,9 @@ struct ext2_group_desc * ext2_get_group_desc(struct super_block * sb,
 	struct ext2_sb_info *sbi = EXT2_SB(sb);
 
 	if (block_group >= sbi->s_groups_count) {
-		ext2_error (sb, "ext2_get_group_desc",
-			    "block_group >= groups_count - "
-			    "block_group = %d, groups_count = %lu",
-			    block_group, sbi->s_groups_count);
+		WARN(1, "block_group >= groups_count - "
+		     "block_group = %d, groups_count = %lu",
+		     block_group, sbi->s_groups_count);
 
 		return NULL;
 	}
@@ -59,10 +58,9 @@ struct ext2_group_desc * ext2_get_group_desc(struct super_block * sb,
 	group_desc = block_group >> EXT2_DESC_PER_BLOCK_BITS(sb);
 	offset = block_group & (EXT2_DESC_PER_BLOCK(sb) - 1);
 	if (!sbi->s_group_desc[group_desc]) {
-		ext2_error (sb, "ext2_get_group_desc",
-			    "Group descriptor not loaded - "
-			    "block_group = %d, group_desc = %lu, desc = %lu",
-			     block_group, group_desc, offset);
+		WARN(1, "Group descriptor not loaded - "
+		     "block_group = %d, group_desc = %lu, desc = %lu",
+		      block_group, group_desc, offset);
 		return NULL;
 	}
 

fs/inode.c

@@ -190,8 +190,10 @@ int inode_init_always(struct super_block *sb, struct inode *inode)
 	mapping_set_gfp_mask(mapping, GFP_HIGHUSER_MOVABLE);
 	mapping->private_data = NULL;
 	mapping->writeback_index = 0;
-	__init_rwsem(&mapping->invalidate_lock, "mapping.invalidate_lock",
-		     &sb->s_type->invalidate_lock_key);
+	init_rwsem(&mapping->invalidate_lock);
+	lockdep_set_class_and_name(&mapping->invalidate_lock,
+				   &sb->s_type->invalidate_lock_key,
+				   "mapping.invalidate_lock");
 	inode->i_private = NULL;
 	inode->i_mapping = mapping;
 	INIT_HLIST_HEAD(&inode->i_dentry);	/* buggered by rcu freeing */

include/acpi/acpi_io.h

@@ -14,14 +14,6 @@ static inline void __iomem *acpi_os_ioremap(acpi_physical_address phys,
 }
 #endif
 
-#ifndef acpi_os_memmap
-static inline void __iomem *acpi_os_memmap(acpi_physical_address phys,
-					    acpi_size size)
-{
-	return ioremap_cache(phys, size);
-}
-#endif
-
 extern bool acpi_permanent_mmap;
 
 void __iomem __ref

init/do_mounts.c

@@ -338,20 +338,19 @@ __setup("rootflags=", root_data_setup);
 __setup("rootfstype=", fs_names_setup);
 __setup("rootdelay=", root_delay_setup);
 
-static int __init split_fs_names(char *page, char *names)
+/* This can return zero length strings. Caller should check */
+static int __init split_fs_names(char *page, size_t size, char *names)
 {
-	int count = 0;
+	int count = 1;
 	char *p = page;
 
-	strcpy(p, root_fs_names);
+	strlcpy(p, root_fs_names, size);
 	while (*p++) {
-		if (p[-1] == ',')
+		if (p[-1] == ',') {
 			p[-1] = '\0';
+			count++;
+		}
 	}
-	*p = '\0';
-
-	for (p = page; *p; p += strlen(p)+1)
-		count++;
 
 	return count;
 }
@@ -404,12 +403,16 @@ void __init mount_block_root(char *name, int flags)
 	scnprintf(b, BDEVNAME_SIZE, "unknown-block(%u,%u)",
 		  MAJOR(ROOT_DEV), MINOR(ROOT_DEV));
 	if (root_fs_names)
-		num_fs = split_fs_names(fs_names, root_fs_names);
+		num_fs = split_fs_names(fs_names, PAGE_SIZE, root_fs_names);
 	else
 		num_fs = list_bdev_fs_names(fs_names, PAGE_SIZE);
 retry:
 	for (i = 0, p = fs_names; i < num_fs; i++, p += strlen(p)+1) {
-		int err = do_mount_root(name, p, flags, root_mount_data);
+		int err;
+
+		if (!*p)
+			continue;
+		err = do_mount_root(name, p, flags, root_mount_data);
 		switch (err) {
 			case 0:
 				goto out;
@@ -543,19 +546,18 @@ static int __init mount_nodev_root(void)
 	fs_names = (void *)__get_free_page(GFP_KERNEL);
 	if (!fs_names)
 		return -EINVAL;
-	num_fs = split_fs_names(fs_names, root_fs_names);
+	num_fs = split_fs_names(fs_names, PAGE_SIZE, root_fs_names);
 
 	for (i = 0, fstype = fs_names; i < num_fs;
 	     i++, fstype += strlen(fstype) + 1) {
+		if (!*fstype)
+			continue;
 		if (!fs_is_nodev(fstype))
 			continue;
 		err = do_mount_root(root_device_name, fstype, root_mountflags,
 				    root_mount_data);
 		if (!err)
 			break;
-		if (err != -EACCES && err != -EINVAL)
-			panic("VFS: Unable to mount root \"%s\" (%s), err=%d\n",
-			      root_device_name, fstype, err);
 	}
 
 	free_page((unsigned long)fs_names);

tools/testing/selftests/arm64/signal/test_signals_utils.c

@@ -266,16 +266,19 @@ int test_init(struct tdescr *td)
 			td->feats_supported |= FEAT_SSBS;
 		if (getauxval(AT_HWCAP) & HWCAP_SVE)
 			td->feats_supported |= FEAT_SVE;
-		if (feats_ok(td))
+		if (feats_ok(td)) {
 			fprintf(stderr,
 				"Required Features: [%s] supported\n",
 				feats_to_string(td->feats_required &
 						td->feats_supported));
-		else
+		} else {
 			fprintf(stderr,
 				"Required Features: [%s] NOT supported\n",
 				feats_to_string(td->feats_required &
 						~td->feats_supported));
+			td->result = KSFT_SKIP;
+			return 0;
+		}
 	}
 
 	/* Perform test specific additional initialization */