Merge 5.10.69 into android12-5.10-lts

Changes in 5.10.69
	PCI: pci-bridge-emul: Add PCIe Root Capabilities Register
	PCI: aardvark: Fix reporting CRS value
	console: consume APC, DM, DCS
	s390/pci_mmio: fully validate the VMA before calling follow_pte()
	ARM: Qualify enabling of swiotlb_init()
	ARM: 9077/1: PLT: Move struct plt_entries definition to header
	ARM: 9078/1: Add warn suppress parameter to arm_gen_branch_link()
	ARM: 9079/1: ftrace: Add MODULE_PLTS support
	ARM: 9098/1: ftrace: MODULE_PLT: Fix build problem without DYNAMIC_FTRACE
	Revert "net/mlx5: Register to devlink ingress VLAN filter trap"
	sctp: validate chunk size in __rcv_asconf_lookup
	sctp: add param size validation for SCTP_PARAM_SET_PRIMARY
	staging: rtl8192u: Fix bitwise vs logical operator in TranslateRxSignalStuff819xUsb()
	coredump: fix memleak in dump_vma_snapshot()
	um: virtio_uml: fix memory leak on init failures
	dmaengine: acpi: Avoid comparison GSI with Linux vIRQ
	perf test: Fix bpf test sample mismatch reporting
	tools lib: Adopt memchr_inv() from kernel
	perf tools: Allow build-id with trailing zeros
	thermal/drivers/exynos: Fix an error code in exynos_tmu_probe()
	9p/trans_virtio: Remove sysfs file on probe failure
	prctl: allow to setup brk for et_dyn executables
	nilfs2: use refcount_dec_and_lock() to fix potential UAF
	profiling: fix shift-out-of-bounds bugs
	PM: sleep: core: Avoid setting power.must_resume to false
	pwm: lpc32xx: Don't modify HW state in .probe() after the PWM chip was registered
	pwm: mxs: Don't modify HW state in .probe() after the PWM chip was registered
	dmaengine: idxd: fix wq slot allocation index check
	platform/chrome: sensorhub: Add trace events for sample
	platform/chrome: cros_ec_trace: Fix format warnings
	ceph: allow ceph_put_mds_session to take NULL or ERR_PTR
	ceph: cancel delayed work instead of flushing on mdsc teardown
	Kconfig.debug: drop selecting non-existing HARDLOCKUP_DETECTOR_ARCH
	tools/bootconfig: Fix tracing_on option checking in ftrace2bconf.sh
	thermal/core: Fix thermal_cooling_device_register() prototype
	drm/amdgpu: Disable PCIE_DPM on Intel RKL Platform
	drivers: base: cacheinfo: Get rid of DEFINE_SMP_CALL_CACHE_FUNCTION()
	dma-buf: DMABUF_MOVE_NOTIFY should depend on DMA_SHARED_BUFFER
	parisc: Move pci_dev_is_behind_card_dino to where it is used
	iommu/amd: Relocate GAMSup check to early_enable_iommus
	dmaengine: idxd: depends on !UML
	dmaengine: sprd: Add missing MODULE_DEVICE_TABLE
	dmaengine: ioat: depends on !UML
	dmaengine: xilinx_dma: Set DMA mask for coherent APIs
	ceph: request Fw caps before updating the mtime in ceph_write_iter
	ceph: remove the capsnaps when removing caps
	ceph: lockdep annotations for try_nonblocking_invalidate
	btrfs: update the bdev time directly when closing
	btrfs: fix lockdep warning while mounting sprout fs
	nilfs2: fix memory leak in nilfs_sysfs_create_device_group
	nilfs2: fix NULL pointer in nilfs_##name##_attr_release
	nilfs2: fix memory leak in nilfs_sysfs_create_##name##_group
	nilfs2: fix memory leak in nilfs_sysfs_delete_##name##_group
	nilfs2: fix memory leak in nilfs_sysfs_create_snapshot_group
	nilfs2: fix memory leak in nilfs_sysfs_delete_snapshot_group
	habanalabs: add validity check for event ID received from F/W
	pwm: img: Don't modify HW state in .remove() callback
	pwm: rockchip: Don't modify HW state in .remove() callback
	pwm: stm32-lp: Don't modify HW state in .remove() callback
	blk-throttle: fix UAF by deleteing timer in blk_throtl_exit()
	blk-mq: allow 4x BLK_MAX_REQUEST_COUNT at blk_plug for multiple_queues
	rtc: rx8010: select REGMAP_I2C
	sched/idle: Make the idle timer expire in hard interrupt context
	drm/nouveau/nvkm: Replace -ENOSYS with -ENODEV
	Linux 5.10.69

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I982349e3a65b83e92e9b808154bf8c84d094f1d6

Makefile

@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 5
 PATCHLEVEL = 10
-SUBLEVEL = 68
+SUBLEVEL = 69
 EXTRAVERSION =
 NAME = Dare mighty things
 

arch/arm/include/asm/ftrace.h

@@ -15,6 +15,9 @@ extern void __gnu_mcount_nc(void);
 
 #ifdef CONFIG_DYNAMIC_FTRACE
 struct dyn_arch_ftrace {
+#ifdef CONFIG_ARM_MODULE_PLTS
+	struct module *mod;
+#endif
 };
 
 static inline unsigned long ftrace_call_adjust(unsigned long addr)

arch/arm/include/asm/insn.h

@@ -13,18 +13,18 @@ arm_gen_nop(void)
 }
 
 unsigned long
-__arm_gen_branch(unsigned long pc, unsigned long addr, bool link);
+__arm_gen_branch(unsigned long pc, unsigned long addr, bool link, bool warn);
 
 static inline unsigned long
 arm_gen_branch(unsigned long pc, unsigned long addr)
 {
-	return __arm_gen_branch(pc, addr, false);
+	return __arm_gen_branch(pc, addr, false, true);
 }
 
 static inline unsigned long
-arm_gen_branch_link(unsigned long pc, unsigned long addr)
+arm_gen_branch_link(unsigned long pc, unsigned long addr, bool warn)
 {
-	return __arm_gen_branch(pc, addr, true);
+	return __arm_gen_branch(pc, addr, true, warn);
 }
 
 #endif

arch/arm/include/asm/module.h

@@ -19,8 +19,18 @@ enum {
 };
 #endif
 
+#define PLT_ENT_STRIDE		L1_CACHE_BYTES
+#define PLT_ENT_COUNT		(PLT_ENT_STRIDE / sizeof(u32))
+#define PLT_ENT_SIZE		(sizeof(struct plt_entries) / PLT_ENT_COUNT)
+
+struct plt_entries {
+	u32	ldr[PLT_ENT_COUNT];
+	u32	lit[PLT_ENT_COUNT];
+};
+
 struct mod_plt_sec {
 	struct elf32_shdr	*plt;
+	struct plt_entries	*plt_ent;
 	int			plt_count;
 };
 

arch/arm/kernel/ftrace.c

@@ -68,9 +68,10 @@ int ftrace_arch_code_modify_post_process(void)
 	return 0;
 }
 
-static unsigned long ftrace_call_replace(unsigned long pc, unsigned long addr)
+static unsigned long ftrace_call_replace(unsigned long pc, unsigned long addr,
+					 bool warn)
 {
-	return arm_gen_branch_link(pc, addr);
+	return arm_gen_branch_link(pc, addr, warn);
 }
 
 static int ftrace_modify_code(unsigned long pc, unsigned long old,
@@ -104,14 +105,14 @@ int ftrace_update_ftrace_func(ftrace_func_t func)
 	int ret;
 
 	pc = (unsigned long)&ftrace_call;
-	new = ftrace_call_replace(pc, (unsigned long)func);
+	new = ftrace_call_replace(pc, (unsigned long)func, true);
 
 	ret = ftrace_modify_code(pc, 0, new, false);
 
 #ifdef CONFIG_DYNAMIC_FTRACE_WITH_REGS
 	if (!ret) {
 		pc = (unsigned long)&ftrace_regs_call;
-		new = ftrace_call_replace(pc, (unsigned long)func);
+		new = ftrace_call_replace(pc, (unsigned long)func, true);
 
 		ret = ftrace_modify_code(pc, 0, new, false);
 	}
@@ -124,10 +125,22 @@ int ftrace_make_call(struct dyn_ftrace *rec, unsigned long addr)
 {
 	unsigned long new, old;
 	unsigned long ip = rec->ip;
+	unsigned long aaddr = adjust_address(rec, addr);
+	struct module *mod = NULL;
+
+#ifdef CONFIG_ARM_MODULE_PLTS
+	mod = rec->arch.mod;
+#endif
 
 	old = ftrace_nop_replace(rec);
 
-	new = ftrace_call_replace(ip, adjust_address(rec, addr));
+	new = ftrace_call_replace(ip, aaddr, !mod);
+#ifdef CONFIG_ARM_MODULE_PLTS
+	if (!new && mod) {
+		aaddr = get_module_plt(mod, ip, aaddr);
+		new = ftrace_call_replace(ip, aaddr, true);
+	}
+#endif
 
 	return ftrace_modify_code(rec->ip, old, new, true);
 }
@@ -140,9 +153,9 @@ int ftrace_modify_call(struct dyn_ftrace *rec, unsigned long old_addr,
 	unsigned long new, old;
 	unsigned long ip = rec->ip;
 
-	old = ftrace_call_replace(ip, adjust_address(rec, old_addr));
+	old = ftrace_call_replace(ip, adjust_address(rec, old_addr), true);
 
-	new = ftrace_call_replace(ip, adjust_address(rec, addr));
+	new = ftrace_call_replace(ip, adjust_address(rec, addr), true);
 
 	return ftrace_modify_code(rec->ip, old, new, true);
 }
@@ -152,12 +165,29 @@ int ftrace_modify_call(struct dyn_ftrace *rec, unsigned long old_addr,
 int ftrace_make_nop(struct module *mod,
 		    struct dyn_ftrace *rec, unsigned long addr)
 {
+	unsigned long aaddr = adjust_address(rec, addr);
 	unsigned long ip = rec->ip;
 	unsigned long old;
 	unsigned long new;
 	int ret;
 
-	old = ftrace_call_replace(ip, adjust_address(rec, addr));
+#ifdef CONFIG_ARM_MODULE_PLTS
+	/* mod is only supplied during module loading */
+	if (!mod)
+		mod = rec->arch.mod;
+	else
+		rec->arch.mod = mod;
+#endif
+
+	old = ftrace_call_replace(ip, aaddr,
+				  !IS_ENABLED(CONFIG_ARM_MODULE_PLTS) || !mod);
+#ifdef CONFIG_ARM_MODULE_PLTS
+	if (!old && mod) {
+		aaddr = get_module_plt(mod, ip, aaddr);
+		old = ftrace_call_replace(ip, aaddr, true);
+	}
+#endif
+
 	new = ftrace_nop_replace(rec);
 	ret = ftrace_modify_code(ip, old, new, true);
 

arch/arm/kernel/insn.c

@@ -3,8 +3,9 @@
 #include <linux/kernel.h>
 #include <asm/opcodes.h>
 
-static unsigned long
+static unsigned long __arm_gen_branch_thumb2(unsigned long pc,
-__arm_gen_branch_thumb2(unsigned long pc, unsigned long addr, bool link)
+					     unsigned long addr, bool link,
+					     bool warn)
 {
 	unsigned long s, j1, j2, i1, i2, imm10, imm11;
 	unsigned long first, second;
@@ -12,7 +13,7 @@ __arm_gen_branch_thumb2(unsigned long pc, unsigned long addr, bool link)
 
 	offset = (long)addr - (long)(pc + 4);
 	if (offset < -16777216 || offset > 16777214) {
-		WARN_ON_ONCE(1);
+		WARN_ON_ONCE(warn);
 		return 0;
 	}
 
@@ -33,8 +34,8 @@ __arm_gen_branch_thumb2(unsigned long pc, unsigned long addr, bool link)
 	return __opcode_thumb32_compose(first, second);
 }
 
-static unsigned long
+static unsigned long __arm_gen_branch_arm(unsigned long pc, unsigned long addr,
-__arm_gen_branch_arm(unsigned long pc, unsigned long addr, bool link)
+					  bool link, bool warn)
 {
 	unsigned long opcode = 0xea000000;
 	long offset;
@@ -44,7 +45,7 @@ __arm_gen_branch_arm(unsigned long pc, unsigned long addr, bool link)
 
 	offset = (long)addr - (long)(pc + 8);
 	if (unlikely(offset < -33554432 || offset > 33554428)) {
-		WARN_ON_ONCE(1);
+		WARN_ON_ONCE(warn);
 		return 0;
 	}
 
@@ -54,10 +55,10 @@ __arm_gen_branch_arm(unsigned long pc, unsigned long addr, bool link)
 }
 
 unsigned long
-__arm_gen_branch(unsigned long pc, unsigned long addr, bool link)
+__arm_gen_branch(unsigned long pc, unsigned long addr, bool link, bool warn)
 {
 	if (IS_ENABLED(CONFIG_THUMB2_KERNEL))
-		return __arm_gen_branch_thumb2(pc, addr, link);
+		return __arm_gen_branch_thumb2(pc, addr, link, warn);
 	else
-		return __arm_gen_branch_arm(pc, addr, link);
+		return __arm_gen_branch_arm(pc, addr, link, warn);
 }

arch/arm/kernel/module-plts.c

@@ -4,6 +4,7 @@
  */
 
 #include <linux/elf.h>
+#include <linux/ftrace.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/sort.h>
@@ -12,10 +13,6 @@
 #include <asm/cache.h>
 #include <asm/opcodes.h>
 
-#define PLT_ENT_STRIDE		L1_CACHE_BYTES
-#define PLT_ENT_COUNT		(PLT_ENT_STRIDE / sizeof(u32))
-#define PLT_ENT_SIZE		(sizeof(struct plt_entries) / PLT_ENT_COUNT)
-
 #ifdef CONFIG_THUMB2_KERNEL
 #define PLT_ENT_LDR		__opcode_to_mem_thumb32(0xf8dff000 | \
 							(PLT_ENT_STRIDE - 4))
@@ -24,9 +21,11 @@
 						    (PLT_ENT_STRIDE - 8))
 #endif
 
-struct plt_entries {
+static const u32 fixed_plts[] = {
-	u32	ldr[PLT_ENT_COUNT];
+#ifdef CONFIG_DYNAMIC_FTRACE
-	u32	lit[PLT_ENT_COUNT];
+	FTRACE_ADDR,
+	MCOUNT_ADDR,
+#endif
 };
 
 static bool in_init(const struct module *mod, unsigned long loc)
@@ -34,14 +33,40 @@ static bool in_init(const struct module *mod, unsigned long loc)
 	return loc - (u32)mod->init_layout.base < mod->init_layout.size;
 }
 
+static void prealloc_fixed(struct mod_plt_sec *pltsec, struct plt_entries *plt)
+{
+	int i;
+
+	if (!ARRAY_SIZE(fixed_plts) || pltsec->plt_count)
+		return;
+	pltsec->plt_count = ARRAY_SIZE(fixed_plts);
+
+	for (i = 0; i < ARRAY_SIZE(plt->ldr); ++i)
+		plt->ldr[i] = PLT_ENT_LDR;
+
+	BUILD_BUG_ON(sizeof(fixed_plts) > sizeof(plt->lit));
+	memcpy(plt->lit, fixed_plts, sizeof(fixed_plts));
+}
+
 u32 get_module_plt(struct module *mod, unsigned long loc, Elf32_Addr val)
 {
 	struct mod_plt_sec *pltsec = !in_init(mod, loc) ? &mod->arch.core :
 							  &mod->arch.init;
+	struct plt_entries *plt;
+	int idx;
 
-	struct plt_entries *plt = (struct plt_entries *)pltsec->plt->sh_addr;
+	/* cache the address, ELF header is available only during module load */
-	int idx = 0;
+	if (!pltsec->plt_ent)
+		pltsec->plt_ent = (struct plt_entries *)pltsec->plt->sh_addr;
+	plt = pltsec->plt_ent;
 
+	prealloc_fixed(pltsec, plt);
+
+	for (idx = 0; idx < ARRAY_SIZE(fixed_plts); ++idx)
+		if (plt->lit[idx] == val)
+			return (u32)&plt->ldr[idx];
+
+	idx = 0;
 	/*
 	 * Look for an existing entry pointing to 'val'. Given that the
 	 * relocations are sorted, this will be the last entry we allocated.
@@ -189,8 +214,8 @@ static unsigned int count_plts(const Elf32_Sym *syms, Elf32_Addr base,
 int module_frob_arch_sections(Elf_Ehdr *ehdr, Elf_Shdr *sechdrs,
 			      char *secstrings, struct module *mod)
 {
-	unsigned long core_plts = 0;
+	unsigned long core_plts = ARRAY_SIZE(fixed_plts);
-	unsigned long init_plts = 0;
+	unsigned long init_plts = ARRAY_SIZE(fixed_plts);
 	Elf32_Shdr *s, *sechdrs_end = sechdrs + ehdr->e_shnum;
 	Elf32_Sym *syms = NULL;
 
@@ -245,6 +270,7 @@ int module_frob_arch_sections(Elf_Ehdr *ehdr, Elf_Shdr *sechdrs,
 	mod->arch.core.plt->sh_size = round_up(core_plts * PLT_ENT_SIZE,
 					       sizeof(struct plt_entries));
 	mod->arch.core.plt_count = 0;
+	mod->arch.core.plt_ent = NULL;
 
 	mod->arch.init.plt->sh_type = SHT_NOBITS;
 	mod->arch.init.plt->sh_flags = SHF_EXECINSTR | SHF_ALLOC;
@@ -252,6 +278,7 @@ int module_frob_arch_sections(Elf_Ehdr *ehdr, Elf_Shdr *sechdrs,
 	mod->arch.init.plt->sh_size = round_up(init_plts * PLT_ENT_SIZE,
 					       sizeof(struct plt_entries));
 	mod->arch.init.plt_count = 0;
+	mod->arch.init.plt_ent = NULL;
 
 	pr_debug("%s: plt=%x, init.plt=%x\n", __func__,
 		 mod->arch.core.plt->sh_size, mod->arch.init.plt->sh_size);

arch/arm/mm/init.c

@@ -378,7 +378,11 @@ static void __init free_highpages(void)
 void __init mem_init(void)
 {
 #ifdef CONFIG_ARM_LPAE
-	swiotlb_init(1);
+	if (swiotlb_force == SWIOTLB_FORCE ||
+	    max_pfn > arm_dma_pfn_limit)
+		swiotlb_init(1);
+	else
+		swiotlb_force = SWIOTLB_NO_FORCE;
 #endif
 
 	set_max_mapnr(pfn_to_page(max_pfn) - mem_map);

arch/arm64/kernel/cacheinfo.c

@@ -43,7 +43,7 @@ static void ci_leaf_init(struct cacheinfo *this_leaf,
 	this_leaf->type = type;
 }
 
-static int __init_cache_level(unsigned int cpu)
+int init_cache_level(unsigned int cpu)
 {
 	unsigned int ctype, level, leaves, fw_level;
 	struct cpu_cacheinfo *this_cpu_ci = get_cpu_cacheinfo(cpu);
@@ -78,7 +78,7 @@ static int __init_cache_level(unsigned int cpu)
 	return 0;
 }
 
-static int __populate_cache_leaves(unsigned int cpu)
+int populate_cache_leaves(unsigned int cpu)
 {
 	unsigned int level, idx;
 	enum cache_type type;
@@ -97,6 +97,3 @@ static int __populate_cache_leaves(unsigned int cpu)
 	}
 	return 0;
 }
-
-DEFINE_SMP_CALL_CACHE_FUNCTION(init_cache_level)
-DEFINE_SMP_CALL_CACHE_FUNCTION(populate_cache_leaves)

arch/mips/kernel/cacheinfo.c

@@ -17,7 +17,7 @@ do {								\
 	leaf++;							\
 } while (0)
 
-static int __init_cache_level(unsigned int cpu)
+int init_cache_level(unsigned int cpu)
 {
 	struct cpuinfo_mips *c = &current_cpu_data;
 	struct cpu_cacheinfo *this_cpu_ci = get_cpu_cacheinfo(cpu);
@@ -69,7 +69,7 @@ static void fill_cpumask_cluster(int cpu, cpumask_t *cpu_map)
 			cpumask_set_cpu(cpu1, cpu_map);
 }
 
-static int __populate_cache_leaves(unsigned int cpu)
+int populate_cache_leaves(unsigned int cpu)
 {
 	struct cpuinfo_mips *c = &current_cpu_data;
 	struct cpu_cacheinfo *this_cpu_ci = get_cpu_cacheinfo(cpu);
@@ -98,6 +98,3 @@ static int __populate_cache_leaves(unsigned int cpu)
 
 	return 0;
 }
-
-DEFINE_SMP_CALL_CACHE_FUNCTION(init_cache_level)
-DEFINE_SMP_CALL_CACHE_FUNCTION(populate_cache_leaves)

arch/riscv/kernel/cacheinfo.c

@@ -113,7 +113,7 @@ static void fill_cacheinfo(struct cacheinfo **this_leaf,
 	}
 }
 
-static int __init_cache_level(unsigned int cpu)
+int init_cache_level(unsigned int cpu)
 {
 	struct cpu_cacheinfo *this_cpu_ci = get_cpu_cacheinfo(cpu);
 	struct device_node *np = of_cpu_device_node_get(cpu);
@@ -155,7 +155,7 @@ static int __init_cache_level(unsigned int cpu)
 	return 0;
 }
 
-static int __populate_cache_leaves(unsigned int cpu)
+int populate_cache_leaves(unsigned int cpu)
 {
 	struct cpu_cacheinfo *this_cpu_ci = get_cpu_cacheinfo(cpu);
 	struct cacheinfo *this_leaf = this_cpu_ci->info_list;
@@ -187,6 +187,3 @@ static int __populate_cache_leaves(unsigned int cpu)
 
 	return 0;
 }
-
-DEFINE_SMP_CALL_CACHE_FUNCTION(init_cache_level)
-DEFINE_SMP_CALL_CACHE_FUNCTION(populate_cache_leaves)

arch/s390/pci/pci_mmio.c

@@ -128,7 +128,7 @@ static long get_pfn(unsigned long user_addr, unsigned long access,
 	mmap_read_lock(current->mm);
 	ret = -EINVAL;
 	vma = find_vma(current->mm, user_addr);
-	if (!vma)
+	if (!vma || user_addr < vma->vm_start)
 		goto out;
 	ret = -EACCES;
 	if (!(vma->vm_flags & access))

arch/um/drivers/virtio_uml.c

@@ -1113,7 +1113,7 @@ static int virtio_uml_probe(struct platform_device *pdev)
 		rc = os_connect_socket(pdata->socket_path);
 	} while (rc == -EINTR);
 	if (rc < 0)
-		return rc;
+		goto error_free;
 	vu_dev->sock = rc;
 
 	spin_lock_init(&vu_dev->sock_lock);
@@ -1132,6 +1132,8 @@ static int virtio_uml_probe(struct platform_device *pdev)
 
 error_init:
 	os_close_file(vu_dev->sock);
+error_free:
+	kfree(vu_dev);
 	return rc;
 }
 

arch/x86/kernel/cpu/cacheinfo.c

@@ -985,7 +985,7 @@ static void ci_leaf_init(struct cacheinfo *this_leaf,
 	this_leaf->priv = base->nb;
 }
 
-static int __init_cache_level(unsigned int cpu)
+int init_cache_level(unsigned int cpu)
 {
 	struct cpu_cacheinfo *this_cpu_ci = get_cpu_cacheinfo(cpu);
 
@@ -1014,7 +1014,7 @@ static void get_cache_id(int cpu, struct _cpuid4_info_regs *id4_regs)
 	id4_regs->id = c->apicid >> index_msb;
 }
 
-static int __populate_cache_leaves(unsigned int cpu)
+int populate_cache_leaves(unsigned int cpu)
 {
 	unsigned int idx, ret;
 	struct cpu_cacheinfo *this_cpu_ci = get_cpu_cacheinfo(cpu);
@@ -1033,6 +1033,3 @@ static int __populate_cache_leaves(unsigned int cpu)
 
 	return 0;
 }
-
-DEFINE_SMP_CALL_CACHE_FUNCTION(init_cache_level)
-DEFINE_SMP_CALL_CACHE_FUNCTION(populate_cache_leaves)

block/blk-mq.c

@@ -2167,6 +2167,18 @@ static void blk_add_rq_to_plug(struct blk_plug *plug, struct request *rq)
 	}
 }
 
+/*
+ * Allow 4x BLK_MAX_REQUEST_COUNT requests on plug queue for multiple
+ * queues. This is important for md arrays to benefit from merging
+ * requests.
+ */
+static inline unsigned short blk_plug_max_rq_count(struct blk_plug *plug)
+{
+	if (plug->multiple_queues)
+		return BLK_MAX_REQUEST_COUNT * 4;
+	return BLK_MAX_REQUEST_COUNT;
+}
+
 /**
  * blk_mq_submit_bio - Create and send a request to block device.
  * @bio: Bio pointer.
@@ -2260,7 +2272,7 @@ blk_qc_t blk_mq_submit_bio(struct bio *bio)
 		else
 			last = list_entry_rq(plug->mq_list.prev);
 
-		if (request_count >= BLK_MAX_REQUEST_COUNT || (last &&
+		if (request_count >= blk_plug_max_rq_count(plug) || (last &&
 		    blk_rq_bytes(last) >= BLK_PLUG_FLUSH_SIZE)) {
 			blk_flush_plug_list(plug, false);
 			trace_block_plug(q);

block/blk-throttle.c

@@ -2452,6 +2452,7 @@ int blk_throtl_init(struct request_queue *q)
 void blk_throtl_exit(struct request_queue *q)
 {
 	BUG_ON(!q->td);
+	del_timer_sync(&q->td->service_queue.pending_timer);
 	throtl_shutdown_wq(q);
 	blkcg_deactivate_policy(q, &blkcg_policy_throtl);
 	free_percpu(q->td->latency_buckets[READ]);

drivers/base/power/main.c

@@ -1649,7 +1649,7 @@ static int __device_suspend(struct device *dev, pm_message_t state, bool async)
 	}
 
 	dev->power.may_skip_resume = true;
-	dev->power.must_resume = false;
+	dev->power.must_resume = !dev_pm_test_driver_flags(dev, DPM_FLAG_MAY_SKIP_RESUME);
 
 	dpm_watchdog_set(&wd, dev);
 	device_lock(dev);

drivers/dma-buf/Kconfig

@@ -42,6 +42,7 @@ config UDMABUF
 config DMABUF_MOVE_NOTIFY
 	bool "Move notify between drivers (EXPERIMENTAL)"
 	default n
+	depends on DMA_SHARED_BUFFER
 	help
 	  Don't pin buffers if the dynamic DMA-buf interface is available on
 	  both the exporter as well as the importer. This fixes a security

drivers/dma/Kconfig

@@ -285,7 +285,7 @@ config INTEL_IDMA64
 
 config INTEL_IDXD
 	tristate "Intel Data Accelerators support"
-	depends on PCI && X86_64
+	depends on PCI && X86_64 && !UML
 	depends on PCI_MSI
 	depends on SBITMAP
 	select DMA_ENGINE
@@ -299,7 +299,7 @@ config INTEL_IDXD
 
 config INTEL_IOATDMA
 	tristate "Intel I/OAT DMA support"
-	depends on PCI && X86_64
+	depends on PCI && X86_64 && !UML
 	select DMA_ENGINE
 	select DMA_ENGINE_RAID
 	select DCA

drivers/dma/acpi-dma.c

@@ -70,10 +70,14 @@ static int acpi_dma_parse_resource_group(const struct acpi_csrt_group *grp,
 
 	si = (const struct acpi_csrt_shared_info *)&grp[1];
 
-	/* Match device by MMIO and IRQ */
+	/* Match device by MMIO */
 	if (si->mmio_base_low != lower_32_bits(mem) ||
-	    si->mmio_base_high != upper_32_bits(mem) ||
+	    si->mmio_base_high != upper_32_bits(mem))
-	    si->gsi_interrupt != irq)
+		return 0;
+
+	/* Match device by Linux vIRQ */
+	ret = acpi_register_gsi(NULL, si->gsi_interrupt, si->interrupt_mode, si->interrupt_polarity);
+	if (ret != irq)
 		return 0;
 
 	dev_dbg(&adev->dev, "matches with %.4s%04X (rev %u)\n",

drivers/dma/idxd/submit.c

@@ -45,7 +45,7 @@ struct idxd_desc *idxd_alloc_desc(struct idxd_wq *wq, enum idxd_op_type optype)
 		if (signal_pending_state(TASK_INTERRUPTIBLE, current))
 			break;
 		idx = sbitmap_queue_get(sbq, &cpu);
-		if (idx > 0)
+		if (idx >= 0)
 			break;
 		schedule();
 	}

drivers/dma/sprd-dma.c

@@ -1265,6 +1265,7 @@ static const struct of_device_id sprd_dma_match[] = {
 	{ .compatible = "sprd,sc9860-dma", },
 	{},
 };
+MODULE_DEVICE_TABLE(of, sprd_dma_match);
 
 static int __maybe_unused sprd_dma_runtime_suspend(struct device *dev)
 {

drivers/dma/xilinx/xilinx_dma.c

@@ -3070,7 +3070,7 @@ static int xilinx_dma_probe(struct platform_device *pdev)
 		xdev->ext_addr = false;
 
 	/* Set the dma mask bits */
-	dma_set_mask(xdev->dev, DMA_BIT_MASK(addr_width));
+	dma_set_mask_and_coherent(xdev->dev, DMA_BIT_MASK(addr_width));
 
 	/* Initialize the DMA engine */
 	xdev->common.dev = &pdev->dev;

drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu7_hwmgr.c

@@ -27,6 +27,9 @@
 #include <linux/pci.h>
 #include <linux/slab.h>
 #include <asm/div64.h>
+#if IS_ENABLED(CONFIG_X86_64)
+#include <asm/intel-family.h>
+#endif
 #include <drm/amdgpu_drm.h>
 #include "ppatomctrl.h"
 #include "atombios.h"
@@ -1606,6 +1609,17 @@ static int smu7_disable_dpm_tasks(struct pp_hwmgr *hwmgr)
 	return result;
 }
 
+static bool intel_core_rkl_chk(void)
+{
+#if IS_ENABLED(CONFIG_X86_64)
+	struct cpuinfo_x86 *c = &cpu_data(0);
+
+	return (c->x86 == 6 && c->x86_model == INTEL_FAM6_ROCKETLAKE);
+#else
+	return false;
+#endif
+}
+
 static void smu7_init_dpm_defaults(struct pp_hwmgr *hwmgr)
 {
 	struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);
@@ -1629,7 +1643,8 @@ static void smu7_init_dpm_defaults(struct pp_hwmgr *hwmgr)
 
 	data->mclk_dpm_key_disabled = hwmgr->feature_mask & PP_MCLK_DPM_MASK ? false : true;
 	data->sclk_dpm_key_disabled = hwmgr->feature_mask & PP_SCLK_DPM_MASK ? false : true;
-	data->pcie_dpm_key_disabled = hwmgr->feature_mask & PP_PCIE_DPM_MASK ? false : true;
+	data->pcie_dpm_key_disabled =
+		intel_core_rkl_chk() || !(hwmgr->feature_mask & PP_PCIE_DPM_MASK);
 	/* need to set voltage control types before EVV patching */
 	data->voltage_control = SMU7_VOLTAGE_CONTROL_NONE;
 	data->vddci_control = SMU7_VOLTAGE_CONTROL_NONE;

drivers/gpu/drm/nouveau/nvkm/engine/device/ctrl.c

@@ -57,7 +57,7 @@ nvkm_control_mthd_pstate_info(struct nvkm_control *ctrl, void *data, u32 size)
 		args->v0.count = 0;
 		args->v0.ustate_ac = NVIF_CONTROL_PSTATE_INFO_V0_USTATE_DISABLE;
 		args->v0.ustate_dc = NVIF_CONTROL_PSTATE_INFO_V0_USTATE_DISABLE;
-		args->v0.pwrsrc = -ENOSYS;
+		args->v0.pwrsrc = -ENODEV;
 		args->v0.pstate = NVIF_CONTROL_PSTATE_INFO_V0_PSTATE_UNKNOWN;
 	}
 

drivers/iommu/amd/init.c

@@ -298,6 +298,22 @@ int amd_iommu_get_num_iommus(void)
 	return amd_iommus_present;
 }
 
+#ifdef CONFIG_IRQ_REMAP
+static bool check_feature_on_all_iommus(u64 mask)
+{
+	bool ret = false;
+	struct amd_iommu *iommu;
+
+	for_each_iommu(iommu) {
+		ret = iommu_feature(iommu, mask);
+		if (!ret)
+			return false;
+	}
+
+	return true;
+}
+#endif
+
 /*
  * For IVHD type 0x11/0x40, EFR is also available via IVHD.
  * Default to IVHD EFR since it is available sooner
@@ -854,13 +870,6 @@ static int iommu_init_ga(struct amd_iommu *iommu)
 	int ret = 0;
 
 #ifdef CONFIG_IRQ_REMAP
-	/* Note: We have already checked GASup from IVRS table.
-	 *       Now, we need to make sure that GAMSup is set.
-	 */
-	if (AMD_IOMMU_GUEST_IR_VAPIC(amd_iommu_guest_ir) &&
-	    !iommu_feature(iommu, FEATURE_GAM_VAPIC))
-		amd_iommu_guest_ir = AMD_IOMMU_GUEST_IR_LEGACY_GA;
-
 	ret = iommu_init_ga_log(iommu);
 #endif /* CONFIG_IRQ_REMAP */
 
@@ -2396,6 +2405,14 @@ static void early_enable_iommus(void)
 	}
 
 #ifdef CONFIG_IRQ_REMAP
+	/*
+	 * Note: We have already checked GASup from IVRS table.
+	 *       Now, we need to make sure that GAMSup is set.
+	 */
+	if (AMD_IOMMU_GUEST_IR_VAPIC(amd_iommu_guest_ir) &&
+	    !check_feature_on_all_iommus(FEATURE_GAM_VAPIC))
+		amd_iommu_guest_ir = AMD_IOMMU_GUEST_IR_LEGACY_GA;
+
 	if (AMD_IOMMU_GUEST_IR_VAPIC(amd_iommu_guest_ir))
 		amd_iommu_irq_ops.capability |= (1 << IRQ_POSTING_CAP);
 #endif

drivers/misc/habanalabs/gaudi/gaudi.c

@@ -5723,6 +5723,12 @@ static void gaudi_handle_eqe(struct hl_device *hdev,
 	u8 cause;
 	bool reset_required;
 
+	if (event_type >= GAUDI_EVENT_SIZE) {
+		dev_err(hdev->dev, "Event type %u exceeds maximum of %u",
+				event_type, GAUDI_EVENT_SIZE - 1);
+		return;
+	}
+
 	gaudi->events_stat[event_type]++;
 	gaudi->events_stat_aggregate[event_type]++;
 

drivers/misc/habanalabs/goya/goya.c

@@ -4623,6 +4623,12 @@ void goya_handle_eqe(struct hl_device *hdev, struct hl_eq_entry *eq_entry)
 				>> EQ_CTL_EVENT_TYPE_SHIFT);
 	struct goya_device *goya = hdev->asic_specific;
 
+	if (event_type >= GOYA_ASYNC_EVENT_ID_SIZE) {
+		dev_err(hdev->dev, "Event type %u exceeds maximum of %u",
+				event_type, GOYA_ASYNC_EVENT_ID_SIZE - 1);
+		return;
+	}
+
 	goya->events_stat[event_type]++;
 	goya->events_stat_aggregate[event_type]++;
 

drivers/net/ethernet/mellanox/mlx5/core/devlink.c

@@ -376,48 +376,6 @@ static void mlx5_devlink_set_params_init_values(struct devlink *devlink)
 #endif
 }
 
-#define MLX5_TRAP_DROP(_id, _group_id)					\
-	DEVLINK_TRAP_GENERIC(DROP, DROP, _id,				\
-			     DEVLINK_TRAP_GROUP_GENERIC_ID_##_group_id, \
-			     DEVLINK_TRAP_METADATA_TYPE_F_IN_PORT)
-
-static const struct devlink_trap mlx5_traps_arr[] = {
-	MLX5_TRAP_DROP(INGRESS_VLAN_FILTER, L2_DROPS),
-};
-
-static const struct devlink_trap_group mlx5_trap_groups_arr[] = {
-	DEVLINK_TRAP_GROUP_GENERIC(L2_DROPS, 0),
-};
-
-static int mlx5_devlink_traps_register(struct devlink *devlink)
-{
-	struct mlx5_core_dev *core_dev = devlink_priv(devlink);
-	int err;
-
-	err = devlink_trap_groups_register(devlink, mlx5_trap_groups_arr,
-					   ARRAY_SIZE(mlx5_trap_groups_arr));
-	if (err)
-		return err;
-
-	err = devlink_traps_register(devlink, mlx5_traps_arr, ARRAY_SIZE(mlx5_traps_arr),
-				     &core_dev->priv);
-	if (err)
-		goto err_trap_group;
-	return 0;
-
-err_trap_group:
-	devlink_trap_groups_unregister(devlink, mlx5_trap_groups_arr,
-				       ARRAY_SIZE(mlx5_trap_groups_arr));
-	return err;
-}
-
-static void mlx5_devlink_traps_unregister(struct devlink *devlink)
-{
-	devlink_traps_unregister(devlink, mlx5_traps_arr, ARRAY_SIZE(mlx5_traps_arr));
-	devlink_trap_groups_unregister(devlink, mlx5_trap_groups_arr,
-				       ARRAY_SIZE(mlx5_trap_groups_arr));
-}
-
 int mlx5_devlink_register(struct devlink *devlink, struct device *dev)
 {
 	int err;
@@ -432,16 +390,8 @@ int mlx5_devlink_register(struct devlink *devlink, struct device *dev)
 		goto params_reg_err;
 	mlx5_devlink_set_params_init_values(devlink);
 	devlink_params_publish(devlink);
-
-	err = mlx5_devlink_traps_register(devlink);
-	if (err)
-		goto traps_reg_err;
-
 	return 0;
 
-traps_reg_err:
-	devlink_params_unregister(devlink, mlx5_devlink_params,
-				  ARRAY_SIZE(mlx5_devlink_params));
 params_reg_err:
 	devlink_unregister(devlink);
 	return err;
@@ -449,7 +399,6 @@ params_reg_err:
 
 void mlx5_devlink_unregister(struct devlink *devlink)
 {
-	mlx5_devlink_traps_unregister(devlink);
 	devlink_params_unpublish(devlink);
 	devlink_params_unregister(devlink, mlx5_devlink_params,
 				  ARRAY_SIZE(mlx5_devlink_params));

drivers/parisc/dino.c

@@ -156,15 +156,6 @@ static inline struct dino_device *DINO_DEV(struct pci_hba_data *hba)
 	return container_of(hba, struct dino_device, hba);
 }
 
-/* Check if PCI device is behind a Card-mode Dino. */
-static int pci_dev_is_behind_card_dino(struct pci_dev *dev)
-{
-	struct dino_device *dino_dev;
-
-	dino_dev = DINO_DEV(parisc_walk_tree(dev->bus->bridge));
-	return is_card_dino(&dino_dev->hba.dev->id);
-}
-
 /*
  * Dino Configuration Space Accessor Functions
  */
@@ -447,6 +438,15 @@ static void quirk_cirrus_cardbus(struct pci_dev *dev)
 DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_6832, quirk_cirrus_cardbus );
 
 #ifdef CONFIG_TULIP
+/* Check if PCI device is behind a Card-mode Dino. */
+static int pci_dev_is_behind_card_dino(struct pci_dev *dev)
+{
+	struct dino_device *dino_dev;
+
+	dino_dev = DINO_DEV(parisc_walk_tree(dev->bus->bridge));
+	return is_card_dino(&dino_dev->hba.dev->id);
+}
+
 static void pci_fixup_tulip(struct pci_dev *dev)
 {
 	if (!pci_dev_is_behind_card_dino(dev))

drivers/pci/controller/pci-aardvark.c

@@ -225,6 +225,8 @@
 
 #define MSI_IRQ_NUM			32
 
+#define CFG_RD_CRS_VAL			0xffff0001
+
 struct advk_pcie {
 	struct platform_device *pdev;
 	void __iomem *base;
@@ -587,7 +589,7 @@ static void advk_pcie_setup_hw(struct advk_pcie *pcie)
 	advk_writel(pcie, reg, PCIE_CORE_CMD_STATUS_REG);
 }
 
-static int advk_pcie_check_pio_status(struct advk_pcie *pcie, u32 *val)
+static int advk_pcie_check_pio_status(struct advk_pcie *pcie, bool allow_crs, u32 *val)
 {
 	struct device *dev = &pcie->pdev->dev;
 	u32 reg;
@@ -629,9 +631,30 @@ static int advk_pcie_check_pio_status(struct advk_pcie *pcie, u32 *val)
 		strcomp_status = "UR";
 		break;
 	case PIO_COMPLETION_STATUS_CRS:
+		if (allow_crs && val) {
+			/* PCIe r4.0, sec 2.3.2, says:
+			 * If CRS Software Visibility is enabled:
+			 * For a Configuration Read Request that includes both
+			 * bytes of the Vendor ID field of a device Function's
+			 * Configuration Space Header, the Root Complex must
+			 * complete the Request to the host by returning a
+			 * read-data value of 0001h for the Vendor ID field and
+			 * all '1's for any additional bytes included in the
+			 * request.
+			 *
+			 * So CRS in this case is not an error status.
+			 */
+			*val = CFG_RD_CRS_VAL;
+			strcomp_status = NULL;
+			break;
+		}
 		/* PCIe r4.0, sec 2.3.2, says:
 		 * If CRS Software Visibility is not enabled, the Root Complex
 		 * must re-issue the Configuration Request as a new Request.
+		 * If CRS Software Visibility is enabled: For a Configuration
+		 * Write Request or for any other Configuration Read Request,
+		 * the Root Complex must re-issue the Configuration Request as
+		 * a new Request.
 		 * A Root Complex implementation may choose to limit the number
 		 * of Configuration Request/CRS Completion Status loops before
 		 * determining that something is wrong with the target of the
@@ -700,6 +723,7 @@ advk_pci_bridge_emul_pcie_conf_read(struct pci_bridge_emul *bridge,
 	case PCI_EXP_RTCTL: {
 		u32 val = advk_readl(pcie, PCIE_ISR0_MASK_REG);
 		*value = (val & PCIE_MSG_PM_PME_MASK) ? 0 : PCI_EXP_RTCTL_PMEIE;
+		*value |= PCI_EXP_RTCAP_CRSVIS << 16;
 		return PCI_BRIDGE_EMUL_HANDLED;
 	}
 
@@ -781,6 +805,7 @@ static struct pci_bridge_emul_ops advk_pci_bridge_emul_ops = {
 static int advk_sw_pci_bridge_init(struct advk_pcie *pcie)
 {
 	struct pci_bridge_emul *bridge = &pcie->bridge;
+	int ret;
 
 	bridge->conf.vendor =
 		cpu_to_le16(advk_readl(pcie, PCIE_CORE_DEV_ID_REG) & 0xffff);
@@ -804,7 +829,15 @@ static int advk_sw_pci_bridge_init(struct advk_pcie *pcie)
 	bridge->data = pcie;
 	bridge->ops = &advk_pci_bridge_emul_ops;
 
-	return pci_bridge_emul_init(bridge, 0);
+	/* PCIe config space can be initialized after pci_bridge_emul_init() */
+	ret = pci_bridge_emul_init(bridge, 0);
+	if (ret < 0)
+		return ret;
+
+	/* Indicates supports for Completion Retry Status */
+	bridge->pcie_conf.rootcap = cpu_to_le16(PCI_EXP_RTCAP_CRSVIS);
+
+	return 0;
 }
 
 static bool advk_pcie_valid_device(struct advk_pcie *pcie, struct pci_bus *bus,
@@ -856,6 +889,7 @@ static int advk_pcie_rd_conf(struct pci_bus *bus, u32 devfn,
 			     int where, int size, u32 *val)
 {
 	struct advk_pcie *pcie = bus->sysdata;
+	bool allow_crs;
 	u32 reg;
 	int ret;
 
@@ -868,7 +902,24 @@ static int advk_pcie_rd_conf(struct pci_bus *bus, u32 devfn,
 		return pci_bridge_emul_conf_read(&pcie->bridge, where,
 						 size, val);
 
+	/*
+	 * Completion Retry Status is possible to return only when reading all
+	 * 4 bytes from PCI_VENDOR_ID and PCI_DEVICE_ID registers at once and
+	 * CRSSVE flag on Root Bridge is enabled.
+	 */
+	allow_crs = (where == PCI_VENDOR_ID) && (size == 4) &&
+		    (le16_to_cpu(pcie->bridge.pcie_conf.rootctl) &
+		     PCI_EXP_RTCTL_CRSSVE);
+
 	if (advk_pcie_pio_is_running(pcie)) {
+		/*
+		 * If it is possible return Completion Retry Status so caller
+		 * tries to issue the request again instead of failing.
+		 */
+		if (allow_crs) {
+			*val = CFG_RD_CRS_VAL;
+			return PCIBIOS_SUCCESSFUL;
+		}
 		*val = 0xffffffff;
 		return PCIBIOS_SET_FAILED;
 	}
@@ -896,12 +947,20 @@ static int advk_pcie_rd_conf(struct pci_bus *bus, u32 devfn,
 
 	ret = advk_pcie_wait_pio(pcie);
 	if (ret < 0) {
+		/*
+		 * If it is possible return Completion Retry Status so caller
+		 * tries to issue the request again instead of failing.
+		 */
+		if (allow_crs) {
+			*val = CFG_RD_CRS_VAL;
+			return PCIBIOS_SUCCESSFUL;
+		}
 		*val = 0xffffffff;
 		return PCIBIOS_SET_FAILED;
 	}
 
 	/* Check PIO status and get the read result */
-	ret = advk_pcie_check_pio_status(pcie, val);
+	ret = advk_pcie_check_pio_status(pcie, allow_crs, val);
 	if (ret < 0) {
 		*val = 0xffffffff;
 		return PCIBIOS_SET_FAILED;
@@ -970,7 +1029,7 @@ static int advk_pcie_wr_conf(struct pci_bus *bus, u32 devfn,
 	if (ret < 0)
 		return PCIBIOS_SET_FAILED;
 
-	ret = advk_pcie_check_pio_status(pcie, NULL);
+	ret = advk_pcie_check_pio_status(pcie, false, NULL);
 	if (ret < 0)
 		return PCIBIOS_SET_FAILED;
 

drivers/pci/pci-bridge-emul.h

@@ -54,7 +54,7 @@ struct pci_bridge_emul_pcie_conf {
 	__le16 slotctl;
 	__le16 slotsta;
 	__le16 rootctl;
-	__le16 rsvd;
+	__le16 rootcap;
 	__le32 rootsta;
 	__le32 devcap2;
 	__le16 devctl2;

drivers/platform/chrome/Makefile

@@ -20,7 +20,7 @@ obj-$(CONFIG_CROS_EC_CHARDEV)		+= cros_ec_chardev.o
 obj-$(CONFIG_CROS_EC_LIGHTBAR)		+= cros_ec_lightbar.o
 obj-$(CONFIG_CROS_EC_VBC)		+= cros_ec_vbc.o
 obj-$(CONFIG_CROS_EC_DEBUGFS)		+= cros_ec_debugfs.o
-cros-ec-sensorhub-objs			:= cros_ec_sensorhub.o cros_ec_sensorhub_ring.o
+cros-ec-sensorhub-objs			:= cros_ec_sensorhub.o cros_ec_sensorhub_ring.o cros_ec_trace.o
 obj-$(CONFIG_CROS_EC_SENSORHUB)		+= cros-ec-sensorhub.o
 obj-$(CONFIG_CROS_EC_SYSFS)		+= cros_ec_sysfs.o
 obj-$(CONFIG_CROS_USBPD_LOGGER)		+= cros_usbpd_logger.o

drivers/platform/chrome/cros_ec_sensorhub_ring.c

@@ -17,6 +17,8 @@
 #include <linux/sort.h>
 #include <linux/slab.h>
 
+#include "cros_ec_trace.h"
+
 /* Precision of fixed point for the m values from the filter */
 #define M_PRECISION BIT(23)
 
@@ -291,6 +293,7 @@ cros_ec_sensor_ring_ts_filter_update(struct cros_ec_sensors_ts_filter_state
 		state->median_m = 0;
 		state->median_error = 0;
 	}
+	trace_cros_ec_sensorhub_filter(state, dx, dy);
 }
 
 /**
@@ -427,6 +430,11 @@ cros_ec_sensor_ring_process_event(struct cros_ec_sensorhub *sensorhub,
 			if (new_timestamp - *current_timestamp > 0)
 				*current_timestamp = new_timestamp;
 		}
+		trace_cros_ec_sensorhub_timestamp(in->timestamp,
+						  fifo_info->timestamp,
+						  fifo_timestamp,
+						  *current_timestamp,
+						  now);
 	}
 
 	if (in->flags & MOTIONSENSE_SENSOR_FLAG_ODR) {
@@ -460,6 +468,12 @@ cros_ec_sensor_ring_process_event(struct cros_ec_sensorhub *sensorhub,
 
 	/* Regular sample */
 	out->sensor_id = in->sensor_num;
+	trace_cros_ec_sensorhub_data(in->sensor_num,
+				     fifo_info->timestamp,
+				     fifo_timestamp,
+				     *current_timestamp,
+				     now);
+
 	if (*current_timestamp - now > 0) {
 		/*
 		 * This fix is needed to overcome the timestamp filter putting

drivers/platform/chrome/cros_ec_trace.h

@@ -15,6 +15,7 @@
 #include <linux/types.h>
 #include <linux/platform_data/cros_ec_commands.h>
 #include <linux/platform_data/cros_ec_proto.h>
+#include <linux/platform_data/cros_ec_sensorhub.h>
 
 #include <linux/tracepoint.h>
 
@@ -70,6 +71,99 @@ TRACE_EVENT(cros_ec_request_done,
 		  __entry->retval)
 );
 
+TRACE_EVENT(cros_ec_sensorhub_timestamp,
+	    TP_PROTO(u32 ec_sample_timestamp, u32 ec_fifo_timestamp, s64 fifo_timestamp,
+		     s64 current_timestamp, s64 current_time),
+	TP_ARGS(ec_sample_timestamp, ec_fifo_timestamp, fifo_timestamp, current_timestamp,
+		current_time),
+	TP_STRUCT__entry(
+		__field(u32, ec_sample_timestamp)
+		__field(u32, ec_fifo_timestamp)
+		__field(s64, fifo_timestamp)
+		__field(s64, current_timestamp)
+		__field(s64, current_time)
+		__field(s64, delta)
+	),
+	TP_fast_assign(
+		__entry->ec_sample_timestamp = ec_sample_timestamp;
+		__entry->ec_fifo_timestamp = ec_fifo_timestamp;
+		__entry->fifo_timestamp = fifo_timestamp;
+		__entry->current_timestamp = current_timestamp;
+		__entry->current_time = current_time;
+		__entry->delta = current_timestamp - current_time;
+	),
+	TP_printk("ec_ts: %9u, ec_fifo_ts: %9u, fifo_ts: %12lld, curr_ts: %12lld, curr_time: %12lld, delta %12lld",
+		  __entry->ec_sample_timestamp,
+		__entry->ec_fifo_timestamp,
+		__entry->fifo_timestamp,
+		__entry->current_timestamp,
+		__entry->current_time,
+		__entry->delta
+	)
+);
+
+TRACE_EVENT(cros_ec_sensorhub_data,
+	    TP_PROTO(u32 ec_sensor_num, u32 ec_fifo_timestamp, s64 fifo_timestamp,
+		     s64 current_timestamp, s64 current_time),
+	TP_ARGS(ec_sensor_num, ec_fifo_timestamp, fifo_timestamp, current_timestamp, current_time),
+	TP_STRUCT__entry(
+		__field(u32, ec_sensor_num)
+		__field(u32, ec_fifo_timestamp)
+		__field(s64, fifo_timestamp)
+		__field(s64, current_timestamp)
+		__field(s64, current_time)
+		__field(s64, delta)
+	),
+	TP_fast_assign(
+		__entry->ec_sensor_num = ec_sensor_num;
+		__entry->ec_fifo_timestamp = ec_fifo_timestamp;
+		__entry->fifo_timestamp = fifo_timestamp;
+		__entry->current_timestamp = current_timestamp;
+		__entry->current_time = current_time;
+		__entry->delta = current_timestamp - current_time;
+	),
+	TP_printk("ec_num: %4u, ec_fifo_ts: %9u, fifo_ts: %12lld, curr_ts: %12lld, curr_time: %12lld, delta %12lld",
+		  __entry->ec_sensor_num,
+		__entry->ec_fifo_timestamp,
+		__entry->fifo_timestamp,
+		__entry->current_timestamp,
+		__entry->current_time,
+		__entry->delta
+	)
+);
+
+TRACE_EVENT(cros_ec_sensorhub_filter,
+	    TP_PROTO(struct cros_ec_sensors_ts_filter_state *state, s64 dx, s64 dy),
+	TP_ARGS(state, dx, dy),
+	TP_STRUCT__entry(
+		__field(s64, dx)
+		__field(s64, dy)
+		__field(s64, median_m)
+		__field(s64, median_error)
+		__field(s64, history_len)
+		__field(s64, x)
+		__field(s64, y)
+	),
+	TP_fast_assign(
+		__entry->dx = dx;
+		__entry->dy = dy;
+		__entry->median_m = state->median_m;
+		__entry->median_error = state->median_error;
+		__entry->history_len = state->history_len;
+		__entry->x = state->x_offset;
+		__entry->y = state->y_offset;
+	),
+	TP_printk("dx: %12lld. dy: %12lld median_m: %12lld median_error: %12lld len: %lld x: %12lld y: %12lld",
+		  __entry->dx,
+		__entry->dy,
+		__entry->median_m,
+		__entry->median_error,
+		__entry->history_len,
+		__entry->x,
+		__entry->y
+	)
+);
+
 
 #endif /* _CROS_EC_TRACE_H_ */
 

drivers/pwm/pwm-img.c

@@ -329,23 +329,7 @@ err_pm_disable:
 static int img_pwm_remove(struct platform_device *pdev)
 {
 	struct img_pwm_chip *pwm_chip = platform_get_drvdata(pdev);
-	u32 val;
-	unsigned int i;
-	int ret;
 
-	ret = pm_runtime_get_sync(&pdev->dev);
-	if (ret < 0) {
-		pm_runtime_put(&pdev->dev);
-		return ret;
-	}
-
-	for (i = 0; i < pwm_chip->chip.npwm; i++) {
-		val = img_pwm_readl(pwm_chip, PWM_CTRL_CFG);
-		val &= ~BIT(i);
-		img_pwm_writel(pwm_chip, PWM_CTRL_CFG, val);
-	}
-
-	pm_runtime_put(&pdev->dev);
 	pm_runtime_disable(&pdev->dev);
 	if (!pm_runtime_status_suspended(&pdev->dev))
 		img_pwm_runtime_suspend(&pdev->dev);

drivers/pwm/pwm-lpc32xx.c

@@ -120,17 +120,17 @@ static int lpc32xx_pwm_probe(struct platform_device *pdev)
 	lpc32xx->chip.npwm = 1;
 	lpc32xx->chip.base = -1;
 
+	/* If PWM is disabled, configure the output to the default value */
+	val = readl(lpc32xx->base + (lpc32xx->chip.pwms[0].hwpwm << 2));
+	val &= ~PWM_PIN_LEVEL;
+	writel(val, lpc32xx->base + (lpc32xx->chip.pwms[0].hwpwm << 2));
+
 	ret = pwmchip_add(&lpc32xx->chip);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "failed to add PWM chip, error %d\n", ret);
 		return ret;
 	}
 
-	/* When PWM is disable, configure the output to the default value */
-	val = readl(lpc32xx->base + (lpc32xx->chip.pwms[0].hwpwm << 2));
-	val &= ~PWM_PIN_LEVEL;
-	writel(val, lpc32xx->base + (lpc32xx->chip.pwms[0].hwpwm << 2));
-
 	platform_set_drvdata(pdev, lpc32xx);
 
 	return 0;

drivers/pwm/pwm-mxs.c

@@ -148,6 +148,11 @@ static int mxs_pwm_probe(struct platform_device *pdev)
 		return ret;
 	}
 
+	/* FIXME: Only do this if the PWM isn't already running */
+	ret = stmp_reset_block(mxs->base);
+	if (ret)
+		return dev_err_probe(&pdev->dev, ret, "failed to reset PWM\n");
+
 	ret = pwmchip_add(&mxs->chip);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "failed to add pwm chip %d\n", ret);
@@ -156,15 +161,7 @@ static int mxs_pwm_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, mxs);
 
-	ret = stmp_reset_block(mxs->base);
-	if (ret)
-		goto pwm_remove;
-
 	return 0;
-
-pwm_remove:
-	pwmchip_remove(&mxs->chip);
-	return ret;
 }
 
 static int mxs_pwm_remove(struct platform_device *pdev)

drivers/pwm/pwm-rockchip.c

@@ -382,20 +382,6 @@ static int rockchip_pwm_remove(struct platform_device *pdev)
 {
 	struct rockchip_pwm_chip *pc = platform_get_drvdata(pdev);
 
-	/*
-	 * Disable the PWM clk before unpreparing it if the PWM device is still
-	 * running. This should only happen when the last PWM user left it
-	 * enabled, or when nobody requested a PWM that was previously enabled
-	 * by the bootloader.
-	 *
-	 * FIXME: Maybe the core should disable all PWM devices in
-	 * pwmchip_remove(). In this case we'd only have to call
-	 * clk_unprepare() after pwmchip_remove().
-	 *
-	 */
-	if (pwm_is_enabled(pc->chip.pwms))
-		clk_disable(pc->clk);
-
 	clk_unprepare(pc->pclk);
 	clk_unprepare(pc->clk);
 

drivers/pwm/pwm-stm32-lp.c

@@ -225,8 +225,6 @@ static int stm32_pwm_lp_remove(struct platform_device *pdev)
 {
 	struct stm32_pwm_lp *priv = platform_get_drvdata(pdev);
 
-	pwm_disable(&priv->chip.pwms[0]);
-
 	return pwmchip_remove(&priv->chip);
 }
 

drivers/rtc/Kconfig

@@ -624,6 +624,7 @@ config RTC_DRV_FM3130
 
 config RTC_DRV_RX8010
 	tristate "Epson RX8010SJ"
+	select REGMAP_I2C
 	help
 	  If you say yes here you get support for the Epson RX8010SJ RTC
 	  chip.

drivers/staging/rtl8192u/r8192U_core.c

@@ -4271,7 +4271,7 @@ static void TranslateRxSignalStuff819xUsb(struct sk_buff *skb,
 	bpacket_match_bssid = (type != IEEE80211_FTYPE_CTL) &&
 			       (ether_addr_equal(priv->ieee80211->current_network.bssid,  (fc & IEEE80211_FCTL_TODS) ? hdr->addr1 : (fc & IEEE80211_FCTL_FROMDS) ? hdr->addr2 : hdr->addr3))
 			       && (!pstats->bHwError) && (!pstats->bCRC) && (!pstats->bICV);
-	bpacket_toself =  bpacket_match_bssid &
+	bpacket_toself =  bpacket_match_bssid &&
 			  (ether_addr_equal(praddr, priv->ieee80211->dev->dev_addr));
 
 	if (WLAN_FC_GET_FRAMETYPE(fc) == IEEE80211_STYPE_BEACON)

drivers/thermal/samsung/exynos_tmu.c

@@ -1073,6 +1073,7 @@ static int exynos_tmu_probe(struct platform_device *pdev)
 		data->sclk = devm_clk_get(&pdev->dev, "tmu_sclk");
 		if (IS_ERR(data->sclk)) {
 			dev_err(&pdev->dev, "Failed to get sclk\n");
+			ret = PTR_ERR(data->sclk);
 			goto err_clk;
 		} else {
 			ret = clk_prepare_enable(data->sclk);

drivers/tty/vt/vt.c

@@ -2060,7 +2060,7 @@ static void restore_cur(struct vc_data *vc)
 
 enum { ESnormal, ESesc, ESsquare, ESgetpars, ESfunckey,
 	EShash, ESsetG0, ESsetG1, ESpercent, EScsiignore, ESnonstd,
-	ESpalette, ESosc };
+	ESpalette, ESosc, ESapc, ESpm, ESdcs };
 
 /* console_lock is held (except via vc_init()) */
 static void reset_terminal(struct vc_data *vc, int do_clear)
@@ -2134,20 +2134,28 @@ static void vc_setGx(struct vc_data *vc, unsigned int which, int c)
 		vc->vc_translate = set_translate(*charset, vc);
 }
 
+/* is this state an ANSI control string? */
+static bool ansi_control_string(unsigned int state)
+{
+	if (state == ESosc || state == ESapc || state == ESpm || state == ESdcs)
+		return true;
+	return false;
+}
+
 /* console_lock is held */
 static void do_con_trol(struct tty_struct *tty, struct vc_data *vc, int c)
 {
 	/*
 	 *  Control characters can be used in the _middle_
-	 *  of an escape sequence.
+	 *  of an escape sequence, aside from ANSI control strings.
 	 */
-	if (vc->vc_state == ESosc && c>=8 && c<=13) /* ... except for OSC */
+	if (ansi_control_string(vc->vc_state) && c >= 8 && c <= 13)
 		return;
 	switch (c) {
 	case 0:
 		return;
 	case 7:
-		if (vc->vc_state == ESosc)
+		if (ansi_control_string(vc->vc_state))
 			vc->vc_state = ESnormal;
 		else if (vc->vc_bell_duration)
 			kd_mksound(vc->vc_bell_pitch, vc->vc_bell_duration);
@@ -2208,6 +2216,12 @@ static void do_con_trol(struct tty_struct *tty, struct vc_data *vc, int c)
 		case ']':
 			vc->vc_state = ESnonstd;
 			return;
+		case '_':
+			vc->vc_state = ESapc;
+			return;
+		case '^':
+			vc->vc_state = ESpm;
+			return;
 		case '%':
 			vc->vc_state = ESpercent;
 			return;
@@ -2225,6 +2239,9 @@ static void do_con_trol(struct tty_struct *tty, struct vc_data *vc, int c)
 			if (vc->state.x < VC_TABSTOPS_COUNT)
 				set_bit(vc->state.x, vc->vc_tab_stop);
 			return;
+		case 'P':
+			vc->vc_state = ESdcs;
+			return;
 		case 'Z':
 			respond_ID(tty);
 			return;
@@ -2521,8 +2538,14 @@ static void do_con_trol(struct tty_struct *tty, struct vc_data *vc, int c)
 		vc_setGx(vc, 1, c);
 		vc->vc_state = ESnormal;
 		return;
+	case ESapc:
+		return;
 	case ESosc:
 		return;
+	case ESpm:
+		return;
+	case ESdcs:
+		return;
 	default:
 		vc->vc_state = ESnormal;
 	}

fs/btrfs/volumes.c

@@ -568,6 +568,8 @@ static int btrfs_free_stale_devices(const char *path,
 	struct btrfs_device *device, *tmp_device;
 	int ret = 0;
 
+	lockdep_assert_held(&uuid_mutex);
+
 	if (path)
 		ret = -ENOENT;
 
@@ -999,11 +1001,12 @@ static struct btrfs_fs_devices *clone_fs_devices(struct btrfs_fs_devices *orig)
 	struct btrfs_device *orig_dev;
 	int ret = 0;
 
+	lockdep_assert_held(&uuid_mutex);
+
 	fs_devices = alloc_fs_devices(orig->fsid, NULL);
 	if (IS_ERR(fs_devices))
 		return fs_devices;
 
-	mutex_lock(&orig->device_list_mutex);
 	fs_devices->total_devices = orig->total_devices;
 
 	list_for_each_entry(orig_dev, &orig->devices, dev_list) {
@@ -1035,10 +1038,8 @@ static struct btrfs_fs_devices *clone_fs_devices(struct btrfs_fs_devices *orig)
 		device->fs_devices = fs_devices;
 		fs_devices->num_devices++;
 	}
-	mutex_unlock(&orig->device_list_mutex);
 	return fs_devices;
 error:
-	mutex_unlock(&orig->device_list_mutex);
 	free_fs_devices(fs_devices);
 	return ERR_PTR(ret);
 }
@@ -1855,15 +1856,17 @@ out:
  * Function to update ctime/mtime for a given device path.
  * Mainly used for ctime/mtime based probe like libblkid.
  */
-static void update_dev_time(const char *path_name)
+static void update_dev_time(struct block_device *bdev)
 {
-	struct file *filp;
+	struct inode *inode = bdev->bd_inode;
+	struct timespec64 now;
 
-	filp = filp_open(path_name, O_RDWR, 0);
+	/* Shouldn't happen but just in case. */
-	if (IS_ERR(filp))
+	if (!inode)
 		return;
-	file_update_time(filp);
+
-	filp_close(filp, NULL);
+	now = current_time(inode);
+	generic_update_time(inode, &now, S_MTIME | S_CTIME);
 }
 
 static int btrfs_rm_dev_item(struct btrfs_device *device)
@@ -2038,7 +2041,7 @@ void btrfs_scratch_superblocks(struct btrfs_fs_info *fs_info,
 	btrfs_kobject_uevent(bdev, KOBJ_CHANGE);
 
 	/* Update ctime/mtime for device path for libblkid */
-	update_dev_time(device_path);
+	update_dev_time(bdev);
 }
 
 int btrfs_rm_device(struct btrfs_fs_info *fs_info, const char *device_path,
@@ -2681,7 +2684,7 @@ int btrfs_init_new_device(struct btrfs_fs_info *fs_info, const char *device_path
 	btrfs_forget_devices(device_path);
 
 	/* Update ctime/mtime for blkid or udev */
-	update_dev_time(device_path);
+	update_dev_time(bdev);
 
 	return ret;
 

fs/ceph/caps.c

@@ -1868,6 +1868,8 @@ static u64 __mark_caps_flushing(struct inode *inode,
  * try to invalidate mapping pages without blocking.
  */
 static int try_nonblocking_invalidate(struct inode *inode)
+	__releases(ci->i_ceph_lock)
+	__acquires(ci->i_ceph_lock)
 {
 	struct ceph_inode_info *ci = ceph_inode(inode);
 	u32 invalidating_gen = ci->i_rdcache_gen;
@@ -3169,7 +3171,16 @@ void ceph_put_wrbuffer_cap_refs(struct ceph_inode_info *ci, int nr,
 				break;
 			}
 		}
-		BUG_ON(!found);
+
+		if (!found) {
+			/*
+			 * The capsnap should already be removed when removing
+			 * auth cap in the case of a forced unmount.
+			 */
+			WARN_ON_ONCE(ci->i_auth_cap);
+			goto unlock;
+		}
+
 		capsnap->dirty_pages -= nr;
 		if (capsnap->dirty_pages == 0) {
 			complete_capsnap = true;
@@ -3191,6 +3202,7 @@ void ceph_put_wrbuffer_cap_refs(struct ceph_inode_info *ci, int nr,
 		     complete_capsnap ? " (complete capsnap)" : "");
 	}
 
+unlock:
 	spin_unlock(&ci->i_ceph_lock);
 
 	if (last) {
@@ -3657,6 +3669,43 @@ out:
 		iput(inode);
 }
 
+void __ceph_remove_capsnap(struct inode *inode, struct ceph_cap_snap *capsnap,
+			   bool *wake_ci, bool *wake_mdsc)
+{
+	struct ceph_inode_info *ci = ceph_inode(inode);
+	struct ceph_mds_client *mdsc = ceph_sb_to_client(inode->i_sb)->mdsc;
+	bool ret;
+
+	lockdep_assert_held(&ci->i_ceph_lock);
+
+	dout("removing capsnap %p, inode %p ci %p\n", capsnap, inode, ci);
+
+	list_del_init(&capsnap->ci_item);
+	ret = __detach_cap_flush_from_ci(ci, &capsnap->cap_flush);
+	if (wake_ci)
+		*wake_ci = ret;
+
+	spin_lock(&mdsc->cap_dirty_lock);
+	if (list_empty(&ci->i_cap_flush_list))
+		list_del_init(&ci->i_flushing_item);
+
+	ret = __detach_cap_flush_from_mdsc(mdsc, &capsnap->cap_flush);
+	if (wake_mdsc)
+		*wake_mdsc = ret;
+	spin_unlock(&mdsc->cap_dirty_lock);
+}
+
+void ceph_remove_capsnap(struct inode *inode, struct ceph_cap_snap *capsnap,
+			 bool *wake_ci, bool *wake_mdsc)
+{
+	struct ceph_inode_info *ci = ceph_inode(inode);
+
+	lockdep_assert_held(&ci->i_ceph_lock);
+
+	WARN_ON_ONCE(capsnap->dirty_pages || capsnap->writing);
+	__ceph_remove_capsnap(inode, capsnap, wake_ci, wake_mdsc);
+}
+
 /*
  * Handle FLUSHSNAP_ACK.  MDS has flushed snap data to disk and we can
  * throw away our cap_snap.
@@ -3694,23 +3743,10 @@ static void handle_cap_flushsnap_ack(struct inode *inode, u64 flush_tid,
 			     capsnap, capsnap->follows);
 		}
 	}
-	if (flushed) {
+	if (flushed)
-		WARN_ON(capsnap->dirty_pages || capsnap->writing);
+		ceph_remove_capsnap(inode, capsnap, &wake_ci, &wake_mdsc);
-		dout(" removing %p cap_snap %p follows %lld\n",
-		     inode, capsnap, follows);
-		list_del(&capsnap->ci_item);
-		wake_ci |= __detach_cap_flush_from_ci(ci, &capsnap->cap_flush);
-
-		spin_lock(&mdsc->cap_dirty_lock);
-
-		if (list_empty(&ci->i_cap_flush_list))
-			list_del_init(&ci->i_flushing_item);
-
-		wake_mdsc |= __detach_cap_flush_from_mdsc(mdsc,
-							  &capsnap->cap_flush);
-		spin_unlock(&mdsc->cap_dirty_lock);
-	}
 	spin_unlock(&ci->i_ceph_lock);
+
 	if (flushed) {
 		ceph_put_snap_context(capsnap->context);
 		ceph_put_cap_snap(capsnap);

fs/ceph/dir.c

@@ -1797,8 +1797,7 @@ static void ceph_d_release(struct dentry *dentry)
 	dentry->d_fsdata = NULL;
 	spin_unlock(&dentry->d_lock);
 
-	if (di->lease_session)
+	ceph_put_mds_session(di->lease_session);
-		ceph_put_mds_session(di->lease_session);
 	kmem_cache_free(ceph_dentry_cachep, di);
 }
 

fs/ceph/file.c

@@ -1723,22 +1723,6 @@ retry_snap:
 		goto out;
 	}
 
-	err = file_remove_privs(file);
-	if (err)
-		goto out;
-
-	err = file_update_time(file);
-	if (err)
-		goto out;
-
-	inode_inc_iversion_raw(inode);
-
-	if (ci->i_inline_version != CEPH_INLINE_NONE) {
-		err = ceph_uninline_data(file, NULL);
-		if (err < 0)
-			goto out;
-	}
-
 	down_read(&osdc->lock);
 	map_flags = osdc->osdmap->flags;
 	pool_flags = ceph_pg_pool_flags(osdc->osdmap, ci->i_layout.pool_id);
@@ -1749,6 +1733,16 @@ retry_snap:
 		goto out;
 	}
 
+	err = file_remove_privs(file);
+	if (err)
+		goto out;
+
+	if (ci->i_inline_version != CEPH_INLINE_NONE) {
+		err = ceph_uninline_data(file, NULL);
+		if (err < 0)
+			goto out;
+	}
+
 	dout("aio_write %p %llx.%llx %llu~%zd getting caps. i_size %llu\n",
 	     inode, ceph_vinop(inode), pos, count, i_size_read(inode));
 	if (fi->fmode & CEPH_FILE_MODE_LAZY)
@@ -1761,6 +1755,12 @@ retry_snap:
 	if (err < 0)
 		goto out;
 
+	err = file_update_time(file);
+	if (err)
+		goto out_caps;
+
+	inode_inc_iversion_raw(inode);
+
 	dout("aio_write %p %llx.%llx %llu~%zd got cap refs on %s\n",
 	     inode, ceph_vinop(inode), pos, count, ceph_cap_string(got));
 
@@ -1844,6 +1844,8 @@ retry_snap:
 	}
 
 	goto out_unlocked;
+out_caps:
+	ceph_put_cap_refs(ci, got);
 out:
 	if (direct_lock)
 		ceph_end_io_direct(inode);

fs/ceph/inode.c

@@ -1121,8 +1121,7 @@ static inline void update_dentry_lease(struct inode *dir, struct dentry *dentry,
 	__update_dentry_lease(dir, dentry, lease, session, from_time,
 			      &old_lease_session);
 	spin_unlock(&dentry->d_lock);
-	if (old_lease_session)
+	ceph_put_mds_session(old_lease_session);
-		ceph_put_mds_session(old_lease_session);
 }
 
 /*
@@ -1167,8 +1166,7 @@ static void update_dentry_lease_careful(struct dentry *dentry,
 			      from_time, &old_lease_session);
 out_unlock:
 	spin_unlock(&dentry->d_lock);
-	if (old_lease_session)
+	ceph_put_mds_session(old_lease_session);
-		ceph_put_mds_session(old_lease_session);
 }
 
 /*

fs/ceph/mds_client.c

@@ -661,6 +661,9 @@ struct ceph_mds_session *ceph_get_mds_session(struct ceph_mds_session *s)
 
 void ceph_put_mds_session(struct ceph_mds_session *s)
 {
+	if (IS_ERR_OR_NULL(s))
+		return;
+
 	dout("mdsc put_session %p %d -> %d\n", s,
 	     refcount_read(&s->s_ref), refcount_read(&s->s_ref)-1);
 	if (refcount_dec_and_test(&s->s_ref)) {
@@ -1435,8 +1438,7 @@ static void __open_export_target_sessions(struct ceph_mds_client *mdsc,
 
 	for (i = 0; i < mi->num_export_targets; i++) {
 		ts = __open_export_target_session(mdsc, mi->export_targets[i]);
-		if (!IS_ERR(ts))
+		ceph_put_mds_session(ts);
-			ceph_put_mds_session(ts);
 	}
 }
 
@@ -1585,14 +1587,39 @@ out:
 	return ret;
 }
 
+static int remove_capsnaps(struct ceph_mds_client *mdsc, struct inode *inode)
+{
+	struct ceph_inode_info *ci = ceph_inode(inode);
+	struct ceph_cap_snap *capsnap;
+	int capsnap_release = 0;
+
+	lockdep_assert_held(&ci->i_ceph_lock);
+
+	dout("removing capsnaps, ci is %p, inode is %p\n", ci, inode);
+
+	while (!list_empty(&ci->i_cap_snaps)) {
+		capsnap = list_first_entry(&ci->i_cap_snaps,
+					   struct ceph_cap_snap, ci_item);
+		__ceph_remove_capsnap(inode, capsnap, NULL, NULL);
+		ceph_put_snap_context(capsnap->context);
+		ceph_put_cap_snap(capsnap);
+		capsnap_release++;
+	}
+	wake_up_all(&ci->i_cap_wq);
+	wake_up_all(&mdsc->cap_flushing_wq);
+	return capsnap_release;
+}
+
 static int remove_session_caps_cb(struct inode *inode, struct ceph_cap *cap,
 				  void *arg)
 {
 	struct ceph_fs_client *fsc = (struct ceph_fs_client *)arg;
+	struct ceph_mds_client *mdsc = fsc->mdsc;
 	struct ceph_inode_info *ci = ceph_inode(inode);
 	LIST_HEAD(to_remove);
 	bool dirty_dropped = false;
 	bool invalidate = false;
+	int capsnap_release = 0;
 
 	dout("removing cap %p, ci is %p, inode is %p\n",
 	     cap, ci, &ci->vfs_inode);
@@ -1600,7 +1627,6 @@ static int remove_session_caps_cb(struct inode *inode, struct ceph_cap *cap,
 	__ceph_remove_cap(cap, false);
 	if (!ci->i_auth_cap) {
 		struct ceph_cap_flush *cf;
-		struct ceph_mds_client *mdsc = fsc->mdsc;
 
 		if (READ_ONCE(fsc->mount_state) == CEPH_MOUNT_SHUTDOWN) {
 			if (inode->i_data.nrpages > 0)
@@ -1664,6 +1690,9 @@ static int remove_session_caps_cb(struct inode *inode, struct ceph_cap *cap,
 			list_add(&ci->i_prealloc_cap_flush->i_list, &to_remove);
 			ci->i_prealloc_cap_flush = NULL;
 		}
+
+		if (!list_empty(&ci->i_cap_snaps))
+			capsnap_release = remove_capsnaps(mdsc, inode);
 	}
 	spin_unlock(&ci->i_ceph_lock);
 	while (!list_empty(&to_remove)) {
@@ -1680,6 +1709,8 @@ static int remove_session_caps_cb(struct inode *inode, struct ceph_cap *cap,
 		ceph_queue_invalidate(inode);
 	if (dirty_dropped)
 		iput(inode);
+	while (capsnap_release--)
+		iput(inode);
 	return 0;
 }
 
@@ -4857,7 +4888,6 @@ void ceph_mdsc_destroy(struct ceph_fs_client *fsc)
 
 	ceph_metric_destroy(&mdsc->metric);
 
-	flush_delayed_work(&mdsc->metric.delayed_work);
 	fsc->mdsc = NULL;
 	kfree(mdsc);
 	dout("mdsc_destroy %p done\n", mdsc);

fs/ceph/metric.c

@@ -224,6 +224,8 @@ void ceph_metric_destroy(struct ceph_client_metric *m)
 	if (!m)
 		return;
 
+	cancel_delayed_work_sync(&m->delayed_work);
+
 	percpu_counter_destroy(&m->total_inodes);
 	percpu_counter_destroy(&m->opened_inodes);
 	percpu_counter_destroy(&m->i_caps_mis);
@@ -231,10 +233,7 @@ void ceph_metric_destroy(struct ceph_client_metric *m)
 	percpu_counter_destroy(&m->d_lease_mis);
 	percpu_counter_destroy(&m->d_lease_hit);
 
-	cancel_delayed_work_sync(&m->delayed_work);
+	ceph_put_mds_session(m->session);
-
-	if (m->session)
-		ceph_put_mds_session(m->session);
 }
 
 static inline void __update_latency(ktime_t *totalp, ktime_t *lsump,

fs/ceph/super.h

@@ -1134,6 +1134,12 @@ extern void ceph_put_cap_refs_no_check_caps(struct ceph_inode_info *ci,
 					    int had);
 extern void ceph_put_wrbuffer_cap_refs(struct ceph_inode_info *ci, int nr,
 				       struct ceph_snap_context *snapc);
+extern void __ceph_remove_capsnap(struct inode *inode,
+				  struct ceph_cap_snap *capsnap,
+				  bool *wake_ci, bool *wake_mdsc);
+extern void ceph_remove_capsnap(struct inode *inode,
+				struct ceph_cap_snap *capsnap,
+				bool *wake_ci, bool *wake_mdsc);
 extern void ceph_flush_snaps(struct ceph_inode_info *ci,
 			     struct ceph_mds_session **psession);
 extern bool __ceph_should_report_size(struct ceph_inode_info *ci);

fs/coredump.c

@@ -1111,8 +1111,10 @@ int dump_vma_snapshot(struct coredump_params *cprm, int *vma_count,
 
 	mmap_write_unlock(mm);
 
-	if (WARN_ON(i != *vma_count))
+	if (WARN_ON(i != *vma_count)) {
+		kvfree(*vma_meta);
 		return -EFAULT;
+	}
 
 	*vma_data_size_ptr = vma_data_size;
 	return 0;

fs/nilfs2/sysfs.c

@@ -64,11 +64,9 @@ static const struct sysfs_ops nilfs_##name##_attr_ops = { \
 #define NILFS_DEV_INT_GROUP_TYPE(name, parent_name) \
 static void nilfs_##name##_attr_release(struct kobject *kobj) \
 { \
-	struct nilfs_sysfs_##parent_name##_subgroups *subgroups; \
+	struct nilfs_sysfs_##parent_name##_subgroups *subgroups = container_of(kobj, \
-	struct the_nilfs *nilfs = container_of(kobj->parent, \
+						struct nilfs_sysfs_##parent_name##_subgroups, \
-						struct the_nilfs, \
+						sg_##name##_kobj); \
-						ns_##parent_name##_kobj); \
-	subgroups = nilfs->ns_##parent_name##_subgroups; \
 	complete(&subgroups->sg_##name##_kobj_unregister); \
 } \
 static struct kobj_type nilfs_##name##_ktype = { \
@@ -94,12 +92,12 @@ static int nilfs_sysfs_create_##name##_group(struct the_nilfs *nilfs) \
 	err = kobject_init_and_add(kobj, &nilfs_##name##_ktype, parent, \
 				    #name); \
 	if (err) \
-		return err; \
+		kobject_put(kobj); \
-	return 0; \
+	return err; \
 } \
 static void nilfs_sysfs_delete_##name##_group(struct the_nilfs *nilfs) \
 { \
-	kobject_del(&nilfs->ns_##parent_name##_subgroups->sg_##name##_kobj); \
+	kobject_put(&nilfs->ns_##parent_name##_subgroups->sg_##name##_kobj); \
 }
 
 /************************************************************************
@@ -210,14 +208,14 @@ int nilfs_sysfs_create_snapshot_group(struct nilfs_root *root)
 	}
 
 	if (err)
-		return err;
+		kobject_put(&root->snapshot_kobj);
 
-	return 0;
+	return err;
 }
 
 void nilfs_sysfs_delete_snapshot_group(struct nilfs_root *root)
 {
-	kobject_del(&root->snapshot_kobj);
+	kobject_put(&root->snapshot_kobj);
 }
 
 /************************************************************************
@@ -999,7 +997,7 @@ int nilfs_sysfs_create_device_group(struct super_block *sb)
 	err = kobject_init_and_add(&nilfs->ns_dev_kobj, &nilfs_dev_ktype, NULL,
 				    "%s", sb->s_id);
 	if (err)
-		goto free_dev_subgroups;
+		goto cleanup_dev_kobject;
 
 	err = nilfs_sysfs_create_mounted_snapshots_group(nilfs);
 	if (err)
@@ -1036,9 +1034,7 @@ delete_mounted_snapshots_group:
 	nilfs_sysfs_delete_mounted_snapshots_group(nilfs);
 
 cleanup_dev_kobject:
-	kobject_del(&nilfs->ns_dev_kobj);
+	kobject_put(&nilfs->ns_dev_kobj);
-
-free_dev_subgroups:
 	kfree(nilfs->ns_dev_subgroups);
 
 failed_create_device_group:

fs/nilfs2/the_nilfs.c

@@ -792,14 +792,13 @@ nilfs_find_or_create_root(struct the_nilfs *nilfs, __u64 cno)
 
 void nilfs_put_root(struct nilfs_root *root)
 {
-	if (refcount_dec_and_test(&root->count)) {
+	struct the_nilfs *nilfs = root->nilfs;
-		struct the_nilfs *nilfs = root->nilfs;
 
-		nilfs_sysfs_delete_snapshot_group(root);
+	if (refcount_dec_and_lock(&root->count, &nilfs->ns_cptree_lock)) {
-
-		spin_lock(&nilfs->ns_cptree_lock);
 		rb_erase(&root->rb_node, &nilfs->ns_cptree);
 		spin_unlock(&nilfs->ns_cptree_lock);
+
+		nilfs_sysfs_delete_snapshot_group(root);
 		iput(root->ifile);
 
 		kfree(root);

include/linux/cacheinfo.h

@@ -79,24 +79,6 @@ struct cpu_cacheinfo {
 	bool cpu_map_populated;
 };
 
-/*
- * Helpers to make sure "func" is executed on the cpu whose cache
- * attributes are being detected
- */
-#define DEFINE_SMP_CALL_CACHE_FUNCTION(func)			\
-static inline void _##func(void *ret)				\
-{								\
-	int cpu = smp_processor_id();				\
-	*(int *)ret = __##func(cpu);				\
-}								\
-								\
-int func(unsigned int cpu)					\
-{								\
-	int ret;						\
-	smp_call_function_single(cpu, _##func, &ret, true);	\
-	return ret;						\
-}
-
 struct cpu_cacheinfo *get_cpu_cacheinfo(unsigned int cpu);
 int init_cache_level(unsigned int cpu);
 int populate_cache_leaves(unsigned int cpu);

include/linux/thermal.h

@@ -427,12 +427,13 @@ static inline void thermal_zone_device_unregister(
 	struct thermal_zone_device *tz)
 { }
 static inline struct thermal_cooling_device *
-thermal_cooling_device_register(char *type, void *devdata,
+thermal_cooling_device_register(const char *type, void *devdata,
 	const struct thermal_cooling_device_ops *ops)
 { return ERR_PTR(-ENODEV); }
 static inline struct thermal_cooling_device *
 thermal_of_cooling_device_register(struct device_node *np,
-	char *type, void *devdata, const struct thermal_cooling_device_ops *ops)
+	const char *type, void *devdata,
+	const struct thermal_cooling_device_ops *ops)
 { return ERR_PTR(-ENODEV); }
 static inline struct thermal_cooling_device *
 devm_thermal_of_cooling_device_register(struct device *dev,

kernel/profile.c

@@ -41,7 +41,8 @@ struct profile_hit {
 #define NR_PROFILE_GRP		(NR_PROFILE_HIT/PROFILE_GRPSZ)
 
 static atomic_t *prof_buffer;
-static unsigned long prof_len, prof_shift;
+static unsigned long prof_len;
+static unsigned short int prof_shift;
 
 int prof_on __read_mostly;
 EXPORT_SYMBOL_GPL(prof_on);
@@ -67,8 +68,8 @@ int profile_setup(char *str)
 		if (str[strlen(sleepstr)] == ',')
 			str += strlen(sleepstr) + 1;
 		if (get_option(&str, &par))
-			prof_shift = par;
+			prof_shift = clamp(par, 0, BITS_PER_LONG - 1);
-		pr_info("kernel sleep profiling enabled (shift: %ld)\n",
+		pr_info("kernel sleep profiling enabled (shift: %u)\n",
 			prof_shift);
 #else
 		pr_warn("kernel sleep profiling requires CONFIG_SCHEDSTATS\n");
@@ -78,21 +79,21 @@ int profile_setup(char *str)
 		if (str[strlen(schedstr)] == ',')
 			str += strlen(schedstr) + 1;
 		if (get_option(&str, &par))
-			prof_shift = par;
+			prof_shift = clamp(par, 0, BITS_PER_LONG - 1);
-		pr_info("kernel schedule profiling enabled (shift: %ld)\n",
+		pr_info("kernel schedule profiling enabled (shift: %u)\n",
 			prof_shift);
 	} else if (!strncmp(str, kvmstr, strlen(kvmstr))) {
 		prof_on = KVM_PROFILING;
 		if (str[strlen(kvmstr)] == ',')
 			str += strlen(kvmstr) + 1;
 		if (get_option(&str, &par))
-			prof_shift = par;
+			prof_shift = clamp(par, 0, BITS_PER_LONG - 1);
-		pr_info("kernel KVM profiling enabled (shift: %ld)\n",
+		pr_info("kernel KVM profiling enabled (shift: %u)\n",
 			prof_shift);
 	} else if (get_option(&str, &par)) {
-		prof_shift = par;
+		prof_shift = clamp(par, 0, BITS_PER_LONG - 1);
 		prof_on = CPU_PROFILING;
-		pr_info("kernel profiling enabled (shift: %ld)\n",
+		pr_info("kernel profiling enabled (shift: %u)\n",
 			prof_shift);
 	}
 	return 1;
@@ -468,7 +469,7 @@ read_profile(struct file *file, char __user *buf, size_t count, loff_t *ppos)
 	unsigned long p = *ppos;
 	ssize_t read;
 	char *pnt;
-	unsigned int sample_step = 1 << prof_shift;
+	unsigned long sample_step = 1UL << prof_shift;
 
 	profile_flip_buffers();
 	if (p >= (prof_len+1)*sizeof(unsigned int))

kernel/sched/idle.c

@@ -374,10 +374,10 @@ void play_idle_precise(u64 duration_ns, u64 latency_ns)
 	cpuidle_use_deepest_state(latency_ns);
 
 	it.done = 0;
-	hrtimer_init_on_stack(&it.timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
+	hrtimer_init_on_stack(&it.timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_HARD);
 	it.timer.function = idle_inject_timer_fn;
 	hrtimer_start(&it.timer, ns_to_ktime(duration_ns),
-		      HRTIMER_MODE_REL_PINNED);
+		      HRTIMER_MODE_REL_PINNED_HARD);
 
 	while (!READ_ONCE(it.done))
 		do_idle();

kernel/sys.c

@@ -1951,13 +1951,6 @@ static int validate_prctl_map_addr(struct prctl_mm_map *prctl_map)
 
 	error = -EINVAL;
 
-	/*
-	 * @brk should be after @end_data in traditional maps.
-	 */
-	if (prctl_map->start_brk <= prctl_map->end_data ||
-	    prctl_map->brk <= prctl_map->end_data)
-		goto out;
-
 	/*
 	 * Neither we should allow to override limits if they set.
 	 */

lib/Kconfig.debug

@@ -982,7 +982,6 @@ config HARDLOCKUP_DETECTOR
 	depends on HAVE_HARDLOCKUP_DETECTOR_PERF || HAVE_HARDLOCKUP_DETECTOR_ARCH
 	select LOCKUP_DETECTOR
 	select HARDLOCKUP_DETECTOR_PERF if HAVE_HARDLOCKUP_DETECTOR_PERF
-	select HARDLOCKUP_DETECTOR_ARCH if HAVE_HARDLOCKUP_DETECTOR_ARCH
 	help
 	  Say Y here to enable the kernel to act as a watchdog to detect
 	  hard lockups.

net/9p/trans_virtio.c

@@ -605,7 +605,7 @@ static int p9_virtio_probe(struct virtio_device *vdev)
 	chan->vc_wq = kmalloc(sizeof(wait_queue_head_t), GFP_KERNEL);
 	if (!chan->vc_wq) {
 		err = -ENOMEM;
-		goto out_free_tag;
+		goto out_remove_file;
 	}
 	init_waitqueue_head(chan->vc_wq);
 	chan->ring_bufs_avail = 1;
@@ -623,6 +623,8 @@ static int p9_virtio_probe(struct virtio_device *vdev)
 
 	return 0;
 
+out_remove_file:
+	sysfs_remove_file(&vdev->dev.kobj, &dev_attr_mount_tag.attr);
 out_free_tag:
 	kfree(tag);
 out_free_vq:

net/sctp/input.c

@@ -1168,6 +1168,9 @@ static struct sctp_association *__sctp_rcv_asconf_lookup(
 	union sctp_addr_param *param;
 	union sctp_addr paddr;
 
+	if (ntohs(ch->length) < sizeof(*asconf) + sizeof(struct sctp_paramhdr))
+		return NULL;
+
 	/* Skip over the ADDIP header and find the Address parameter */
 	param = (union sctp_addr_param *)(asconf + 1);
 

net/sctp/sm_make_chunk.c

@@ -2150,9 +2150,16 @@ static enum sctp_ierror sctp_verify_param(struct net *net,
 		break;
 
 	case SCTP_PARAM_SET_PRIMARY:
-		if (ep->asconf_enable)
+		if (!ep->asconf_enable)
-			break;
+			goto unhandled;
-		goto unhandled;
+
+		if (ntohs(param.p->length) < sizeof(struct sctp_addip_param) +
+					     sizeof(struct sctp_paramhdr)) {
+			sctp_process_inv_paramlength(asoc, param.p,
+						     chunk, err_chunk);
+			retval = SCTP_IERROR_ABORT;
+		}
+		break;
 
 	case SCTP_PARAM_HOST_NAME_ADDRESS:
 		/* Tell the peer, we won't support this param.  */

tools/bootconfig/scripts/ftrace2bconf.sh

@@ -222,8 +222,8 @@ instance_options() { # [instance-name]
 		emit_kv $PREFIX.cpumask = $val
 	fi
 	val=`cat $INSTANCE/tracing_on`
-	if [ `echo $val | sed -e s/f//g`x != x ]; then
+	if [ "$val" = "0" ]; then
-		emit_kv $PREFIX.tracing_on = $val
+		emit_kv $PREFIX.tracing_on = 0
 	fi
 
 	val=

tools/include/linux/string.h

@@ -46,4 +46,5 @@ extern char * __must_check skip_spaces(const char *);
 
 extern char *strim(char *);
 
+extern void *memchr_inv(const void *start, int c, size_t bytes);
 #endif /* _TOOLS_LINUX_STRING_H_ */

tools/lib/string.c

@@ -168,3 +168,61 @@ char *strreplace(char *s, char old, char new)
 			*s = new;
 	return s;
 }
+
+static void *check_bytes8(const u8 *start, u8 value, unsigned int bytes)
+{
+	while (bytes) {
+		if (*start != value)
+			return (void *)start;
+		start++;
+		bytes--;
+	}
+	return NULL;
+}
+
+/**
+ * memchr_inv - Find an unmatching character in an area of memory.
+ * @start: The memory area
+ * @c: Find a character other than c
+ * @bytes: The size of the area.
+ *
+ * returns the address of the first character other than @c, or %NULL
+ * if the whole buffer contains just @c.
+ */
+void *memchr_inv(const void *start, int c, size_t bytes)
+{
+	u8 value = c;
+	u64 value64;
+	unsigned int words, prefix;
+
+	if (bytes <= 16)
+		return check_bytes8(start, value, bytes);
+
+	value64 = value;
+	value64 |= value64 << 8;
+	value64 |= value64 << 16;
+	value64 |= value64 << 32;
+
+	prefix = (unsigned long)start % 8;
+	if (prefix) {
+		u8 *r;
+
+		prefix = 8 - prefix;
+		r = check_bytes8(start, value, prefix);
+		if (r)
+			return r;
+		start += prefix;
+		bytes -= prefix;
+	}
+
+	words = bytes / 8;
+
+	while (words) {
+		if (*(u64 *)start != value64)
+			return check_bytes8(start, value, 8);
+		start += 8;
+		words--;
+	}
+
+	return check_bytes8(start, value, bytes % 8);
+}

tools/perf/tests/bpf.c

@@ -199,7 +199,7 @@ static int do_test(struct bpf_object *obj, int (*func)(void),
 	}
 
 	if (count != expect * evlist->core.nr_entries) {
-		pr_debug("BPF filter result incorrect, expected %d, got %d samples\n", expect, count);
+		pr_debug("BPF filter result incorrect, expected %d, got %d samples\n", expect * evlist->core.nr_entries, count);
 		goto out_delete_evlist;
 	}
 

tools/perf/util/dso.c

@@ -1336,6 +1336,16 @@ void dso__set_build_id(struct dso *dso, struct build_id *bid)
 
 bool dso__build_id_equal(const struct dso *dso, struct build_id *bid)
 {
+	if (dso->bid.size > bid->size && dso->bid.size == BUILD_ID_SIZE) {
+		/*
+		 * For the backward compatibility, it allows a build-id has
+		 * trailing zeros.
+		 */
+		return !memcmp(dso->bid.data, bid->data, bid->size) &&
+			!memchr_inv(&dso->bid.data[bid->size], 0,
+				    dso->bid.size - bid->size);
+	}
+
 	return dso->bid.size == bid->size &&
 	       memcmp(dso->bid.data, bid->data, dso->bid.size) == 0;
 }