Linux 5.4.132

index 2924d7910b10..eb2190477da1 100644
@@ -773,10 +773,10 @@ static inline void armv7pmu_write_counter(struct perf_event *event, u64 value)
 		pr_err("CPU%u writing wrong counter %d\n",
 			smp_processor_id(), idx);
 	} else if (idx == ARMV7_IDX_CYCLE_COUNTER) {
-		asm volatile("mcr p15, 0, %0, c9, c13, 0" : : "r" (value));
+		asm volatile("mcr p15, 0, %0, c9, c13, 0" : : "r" ((u32)value));
 	} else {
 		armv7_pmnc_select_counter(idx);
-		asm volatile("mcr p15, 0, %0, c9, c13, 2" : : "r" (value));
+		asm volatile("mcr p15, 0, %0, c9, c13, 2" : : "r" ((u32)value));
 	}
 }
 

index c764cc8fb3b6..9bf56e30f4a8 100644
@@ -15,10 +15,10 @@
 	.macro	__uaccess_ttbr0_disable, tmp1
 	mrs	\tmp1, ttbr1_el1			// swapper_pg_dir
 	bic	\tmp1, \tmp1, #TTBR_ASID_MASK
-	sub	\tmp1, \tmp1, #RESERVED_TTBR0_SIZE	// reserved_ttbr0 just before swapper_pg_dir
+	sub	\tmp1, \tmp1, #PAGE_SIZE		// reserved_pg_dir just before swapper_pg_dir
 	msr	ttbr0_el1, \tmp1			// set reserved TTBR0_EL1
 	isb
-	add	\tmp1, \tmp1, #RESERVED_TTBR0_SIZE
+	add	\tmp1, \tmp1, #PAGE_SIZE
 	msr	ttbr1_el1, \tmp1		// set reserved ASID
 	isb
 	.endm

index a6e5da755359..817efd95d539 100644
@@ -89,12 +89,6 @@
 #define INIT_DIR_SIZE (PAGE_SIZE * EARLY_PAGES(KIMAGE_VADDR + TEXT_OFFSET, _end))
 #define IDMAP_DIR_SIZE		(IDMAP_PGTABLE_LEVELS * PAGE_SIZE)
 
-#ifdef CONFIG_ARM64_SW_TTBR0_PAN
-#define RESERVED_TTBR0_SIZE	(PAGE_SIZE)
-#else
-#define RESERVED_TTBR0_SIZE	(0)
-#endif
-
 /* Initial memory map size */
 #if ARM64_SWAPPER_USES_SECTION_MAPS
 #define SWAPPER_BLOCK_SHIFT	SECTION_SHIFT

index 3a5d9f1c91b6..fb564de90aa7 100644
@@ -36,11 +36,11 @@ static inline void contextidr_thread_switch(struct task_struct *next)
 }
 
 /*
- * Set TTBR0 to empty_zero_page. No translations will be possible via TTBR0.
+ * Set TTBR0 to reserved_pg_dir. No translations will be possible via TTBR0.
  */
 static inline void cpu_set_reserved_ttbr0(void)
 {
-	unsigned long ttbr = phys_to_ttbr(__pa_symbol(empty_zero_page));
+	unsigned long ttbr = phys_to_ttbr(__pa_symbol(reserved_pg_dir));
 
 	write_sysreg(ttbr, ttbr0_el1);
 	isb();

@@ -184,9 +184,9 @@ static inline void update_saved_ttbr0(struct task_struct *tsk,
 		return;
 
 	if (mm == &init_mm)
-		ttbr = __pa_symbol(empty_zero_page);
+		ttbr = phys_to_ttbr(__pa_symbol(reserved_pg_dir));
 	else
-		ttbr = virt_to_phys(mm->pgd) | ASID(mm) << 48;
+		ttbr = phys_to_ttbr(virt_to_phys(mm->pgd)) | ASID(mm) << 48;
 
 	WRITE_ONCE(task_thread_info(tsk)->ttbr0, ttbr);
 }

index 8c420f916fe2..a92a187ec891 100644
@@ -466,6 +466,7 @@ extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
 extern pgd_t idmap_pg_dir[PTRS_PER_PGD];
 extern pgd_t idmap_pg_end[];
 extern pgd_t tramp_pg_dir[PTRS_PER_PGD];
+extern pgd_t reserved_pg_dir[PTRS_PER_PGD];
 
 extern void set_swapper_pgd(pgd_t *pgdp, pgd_t pgd);
 

index 32fc8061aa76..b9a37a415bf9 100644
@@ -112,8 +112,8 @@ static inline void __uaccess_ttbr0_disable(void)
 	local_irq_save(flags);
 	ttbr = read_sysreg(ttbr1_el1);
 	ttbr &= ~TTBR_ASID_MASK;
-	/* reserved_ttbr0 placed before swapper_pg_dir */
-	write_sysreg(ttbr - RESERVED_TTBR0_SIZE, ttbr0_el1);
+	/* reserved_pg_dir placed before swapper_pg_dir */
+	write_sysreg(ttbr - PAGE_SIZE, ttbr0_el1);
 	isb();
 	/* Set reserved ASID */
 	write_sysreg(ttbr, ttbr1_el1);

index d98987b82874..f55f4a15a905 100644
@@ -356,7 +356,7 @@ void __init setup_arch(char **cmdline_p)
 	 * faults in case uaccess_enable() is inadvertently called by the init
 	 * thread.
 	 */
-	init_task.thread_info.ttbr0 = __pa_symbol(empty_zero_page);
+	init_task.thread_info.ttbr0 = phys_to_ttbr(__pa_symbol(reserved_pg_dir));
 #endif
 
 #ifdef CONFIG_VT

index 4d0ab323dee8..2a40268c3d49 100644
@@ -343,7 +343,7 @@ init_record_index_pools(void)
 
 	/* - 2 - */
 	sect_min_size = sal_log_sect_min_sizes[0];
-	for (i = 1; i < sizeof sal_log_sect_min_sizes/sizeof(size_t); i++)
+	for (i = 1; i < ARRAY_SIZE(sal_log_sect_min_sizes); i++)
 		if (sect_min_size > sal_log_sect_min_sizes[i])
 			sect_min_size = sal_log_sect_min_sizes[i];
 

index 9d84aafc33d0..9a6bf4f011b5 100644
@@ -36,7 +36,7 @@ extern pte_t *pkmap_page_table;
  * easily, subsequent pte tables have to be allocated in one physical
  * chunk of RAM.
  */
-#ifdef CONFIG_PHYS_ADDR_T_64BIT
+#if defined(CONFIG_PHYS_ADDR_T_64BIT) || defined(CONFIG_MIPS_HUGE_TLB_SUPPORT)
 #define LAST_PKMAP 512
 #else
 #define LAST_PKMAP 1024

index deb99fd6e060..51f533b6ece0 100644
@@ -99,6 +99,36 @@ static inline int cpu_last_thread_sibling(int cpu)
 	return cpu | (threads_per_core - 1);
 }
 
+/*
+ * tlb_thread_siblings are siblings which share a TLB. This is not
+ * architected, is not something a hypervisor could emulate and a future
+ * CPU may change behaviour even in compat mode, so this should only be
+ * used on PowerNV, and only with care.
+ */
+static inline int cpu_first_tlb_thread_sibling(int cpu)
+{
+	if (cpu_has_feature(CPU_FTR_ARCH_300) && (threads_per_core == 8))
+		return cpu & ~0x6;	/* Big Core */
+	else
+		return cpu_first_thread_sibling(cpu);
+}
+
+static inline int cpu_last_tlb_thread_sibling(int cpu)
+{
+	if (cpu_has_feature(CPU_FTR_ARCH_300) && (threads_per_core == 8))
+		return cpu | 0x6;	/* Big Core */
+	else
+		return cpu_last_thread_sibling(cpu);
+}
+
+static inline int cpu_tlb_thread_sibling_step(void)
+{
+	if (cpu_has_feature(CPU_FTR_ARCH_300) && (threads_per_core == 8))
+		return 2;		/* Big Core */
+	else
+		return 1;
+}
+
 static inline u32 get_tensr(void)
 {
 #ifdef	CONFIG_BOOKE

index b24d860bbab9..c06cac543f18 100644
@@ -588,6 +588,8 @@ static void nmi_stop_this_cpu(struct pt_regs *regs)
 	/*
 	 * IRQs are already hard disabled by the smp_handle_nmi_ipi.
 	 */
+	set_cpu_online(smp_processor_id(), false);
+
 	spin_begin();
 	while (1)
 		spin_cpu_relax();

@@ -603,6 +605,15 @@ void smp_send_stop(void)
 static void stop_this_cpu(void *dummy)
 {
 	hard_irq_disable();
+
+	/*
+	 * Offlining CPUs in stop_this_cpu can result in scheduler warnings,
+	 * (see commit de6e5d38417e), but printk_safe_flush_on_panic() wants
+	 * to know other CPUs are offline before it breaks locks to flush
+	 * printk buffers, in case we panic()ed while holding the lock.
+	 */
+	set_cpu_online(smp_processor_id(), false);
+
 	spin_begin();
 	while (1)
 		spin_cpu_relax();

index e2a46cfed5fd..b13c6213b0d9 100644
@@ -19,6 +19,7 @@
 #include <asm/ptrace.h>
 #include <asm/processor.h>
 #include <linux/ftrace.h>
+#include <linux/delay.h>
 #include <asm/kprobes.h>
 
 #include <asm/paca.h>

@@ -230,17 +231,31 @@ static void handle_backtrace_ipi(struct pt_regs *regs)
 
 static void raise_backtrace_ipi(cpumask_t *mask)
 {
+	struct paca_struct *p;
 	unsigned int cpu;
+	u64 delay_us;
 
 	for_each_cpu(cpu, mask) {
-		if (cpu == smp_processor_id())
+		if (cpu == smp_processor_id()) {
 			handle_backtrace_ipi(NULL);
-		else
-			smp_send_safe_nmi_ipi(cpu, handle_backtrace_ipi, 5 * USEC_PER_SEC);
-	}
+			continue;
+		}
 
-	for_each_cpu(cpu, mask) {
-		struct paca_struct *p = paca_ptrs[cpu];
+		delay_us = 5 * USEC_PER_SEC;
+
+		if (smp_send_safe_nmi_ipi(cpu, handle_backtrace_ipi, delay_us)) {
+			// Now wait up to 5s for the other CPU to do its backtrace
+			while (cpumask_test_cpu(cpu, mask) && delay_us) {
+				udelay(1);
+				delay_us--;
+			}
+
+			// Other CPU cleared itself from the mask
+			if (delay_us)
+				continue;
+		}
+
+		p = paca_ptrs[cpu];
 
 		cpumask_clear_cpu(cpu, mask);
 

index 6938b793a015..9011857c0434 100644
@@ -2536,7 +2536,7 @@ static void radix_flush_cpu(struct kvm *kvm, int cpu, struct kvm_vcpu *vcpu)
 	cpumask_t *cpu_in_guest;
 	int i;
 
-	cpu = cpu_first_thread_sibling(cpu);
+	cpu = cpu_first_tlb_thread_sibling(cpu);
 	if (nested) {
 		cpumask_set_cpu(cpu, &nested->need_tlb_flush);
 		cpu_in_guest = &nested->cpu_in_guest;

@@ -2550,9 +2550,10 @@ static void radix_flush_cpu(struct kvm *kvm, int cpu, struct kvm_vcpu *vcpu)
 	 * the other side is the first smp_mb() in kvmppc_run_core().
 	 */
 	smp_mb();
-	for (i = 0; i < threads_per_core; ++i)
-		if (cpumask_test_cpu(cpu + i, cpu_in_guest))
-			smp_call_function_single(cpu + i, do_nothing, NULL, 1);
+	for (i = cpu; i <= cpu_last_tlb_thread_sibling(cpu);
+					i += cpu_tlb_thread_sibling_step())
+		if (cpumask_test_cpu(i, cpu_in_guest))
+			smp_call_function_single(i, do_nothing, NULL, 1);
 }
 
 static void kvmppc_prepare_radix_vcpu(struct kvm_vcpu *vcpu, int pcpu)

@@ -2583,8 +2584,8 @@ static void kvmppc_prepare_radix_vcpu(struct kvm_vcpu *vcpu, int pcpu)
 	 */
 	if (prev_cpu != pcpu) {
 		if (prev_cpu >= 0 &&
-		    cpu_first_thread_sibling(prev_cpu) !=
-		    cpu_first_thread_sibling(pcpu))
+		    cpu_first_tlb_thread_sibling(prev_cpu) !=
+		    cpu_first_tlb_thread_sibling(pcpu))
 			radix_flush_cpu(kvm, prev_cpu, vcpu);
 		if (nested)
 			nested->prev_cpu[vcpu->arch.nested_vcpu_id] = pcpu;

index 7c1909657b55..4a91b543a854 100644
@@ -847,7 +847,7 @@ void kvmppc_check_need_tlb_flush(struct kvm *kvm, int pcpu,
 	 * Thus we make all 4 threads use the same bit.
 	 */
 	if (cpu_has_feature(CPU_FTR_ARCH_300))
-		pcpu = cpu_first_thread_sibling(pcpu);
+		pcpu = cpu_first_tlb_thread_sibling(pcpu);
 
 	if (nested)
 		need_tlb_flush = &nested->need_tlb_flush;

index cdf30c6eaf54..66fa2c7590aa 100644
@@ -51,7 +51,8 @@ void kvmhv_save_hv_regs(struct kvm_vcpu *vcpu, struct hv_guest_state *hr)
 	hr->ppr = vcpu->arch.ppr;
 }
 
-static void byteswap_pt_regs(struct pt_regs *regs)
+/* Use noinline_for_stack due to https://bugs.llvm.org/show_bug.cgi?id=49610 */
+static noinline_for_stack void byteswap_pt_regs(struct pt_regs *regs)
 {
 	unsigned long *addr = (unsigned long *) regs;
 

index 220305454c23..9bf3be438ac5 100644
@@ -67,7 +67,7 @@ static int global_invalidates(struct kvm *kvm)
 		 * so use the bit for the first thread to represent the core.
 		 */
 		if (cpu_has_feature(CPU_FTR_ARCH_300))
-			cpu = cpu_first_thread_sibling(cpu);
+			cpu = cpu_first_tlb_thread_sibling(cpu);
 		cpumask_clear_cpu(cpu, &kvm->arch.need_tlb_flush);
 	}
 

index d08e13c6dc98..20ba8537dbcc 100644
@@ -318,31 +318,31 @@ static void allow_cpu_feat(unsigned long nr)
 
 static inline int plo_test_bit(unsigned char nr)
 {
-	register unsigned long r0 asm("0") = (unsigned long) nr | 0x100;
+	unsigned long function = (unsigned long)nr | 0x100;
 	int cc;
 
 	asm volatile(
+		"	lgr	0,%[function]\n"
 		/* Parameter registers are ignored for "test bit" */
 		"	plo	0,0,0,0(0)\n"
 		"	ipm	%0\n"
 		"	srl	%0,28\n"
 		: "=d" (cc)
-		: "d" (r0)
-		: "cc");
+		: [function] "d" (function)
+		: "cc", "0");
 	return cc == 0;
 }
 
 static __always_inline void __insn32_query(unsigned int opcode, u8 *query)
 {
-	register unsigned long r0 asm("0") = 0;	/* query function */
-	register unsigned long r1 asm("1") = (unsigned long) query;
-
 	asm volatile(
-		/* Parameter regs are ignored */
+		"	lghi	0,0\n"
+		"	lgr	1,%[query]\n"
+		/* Parameter registers are ignored */
 		"	.insn	rrf,%[opc] << 16,2,4,6,0\n"
 		:
-		: "d" (r0), "a" (r1), [opc] "i" (opcode)
-		: "cc", "memory");
+		: [query] "d" ((unsigned long)query), [opc] "i" (opcode)
+		: "cc", "memory", "0", "1");
 }
 
 #define INSN_SORTL 0xb938

index 3f63bd7421ac..023bd3e1aa0d 100644
@@ -5099,7 +5099,7 @@ static int handle_vmfunc(struct kvm_vcpu *vcpu)
 	}
 
 	vmcs12 = get_vmcs12(vcpu);
-	if ((vmcs12->vm_function_control & (1 << function)) == 0)
+	if (!(vmcs12->vm_function_control & BIT_ULL(function)))
 		goto fail;
 
 	switch (function) {

index 03959bfe961c..4b022f0c49d2 100644
@@ -571,10 +571,14 @@ static inline unsigned int blk_rq_get_max_segments(struct request *rq)
 static inline int ll_new_hw_segment(struct request *req, struct bio *bio,
 		unsigned int nr_phys_segs)
 {
-	if (req->nr_phys_segments + nr_phys_segs > blk_rq_get_max_segments(req))
+	if (blk_integrity_merge_bio(req->q, req, bio) == false)
 		goto no_merge;
 
-	if (blk_integrity_merge_bio(req->q, req, bio) == false)
+	/* discard request merge won't add new segment */
+	if (req_op(req) == REQ_OP_DISCARD)
+		return 1;
+
+	if (req->nr_phys_segments + nr_phys_segs > blk_rq_get_max_segments(req))
 		goto no_merge;
 
 	/*

index 2bc43e94f4c4..2bcb3495e376 100644
@@ -7,6 +7,7 @@
 #include <linux/blk_types.h>
 #include <linux/atomic.h>
 #include <linux/wait.h>
+#include <linux/blk-mq.h>
 
 #include "blk-mq-debugfs.h"
 

@@ -99,8 +100,21 @@ static inline void rq_wait_init(struct rq_wait *rq_wait)
 
 static inline void rq_qos_add(struct request_queue *q, struct rq_qos *rqos)
 {
+	/*
+	 * No IO can be in-flight when adding rqos, so freeze queue, which
+	 * is fine since we only support rq_qos for blk-mq queue.
+	 *
+	 * Reuse ->queue_lock for protecting against other concurrent
+	 * rq_qos adding/deleting
+	 */
+	blk_mq_freeze_queue(q);
+
+	spin_lock_irq(&q->queue_lock);
 	rqos->next = q->rq_qos;
 	q->rq_qos = rqos;
+	spin_unlock_irq(&q->queue_lock);
+
+	blk_mq_unfreeze_queue(q);
 
 	if (rqos->ops->debugfs_attrs)
 		blk_mq_debugfs_register_rqos(rqos);

@@ -110,12 +124,22 @@ static inline void rq_qos_del(struct request_queue *q, struct rq_qos *rqos)
 {
 	struct rq_qos **cur;
 
+	/*
+	 * See comment in rq_qos_add() about freezing queue & using
+	 * ->queue_lock.
+	 */
+	blk_mq_freeze_queue(q);
+
+	spin_lock_irq(&q->queue_lock);
 	for (cur = &q->rq_qos; *cur; cur = &(*cur)->next) {
 		if (*cur == rqos) {
 			*cur = rqos->next;
 			break;
 		}
 	}
+	spin_unlock_irq(&q->queue_lock);
+
+	blk_mq_unfreeze_queue(q);
 
 	blk_mq_debugfs_unregister_rqos(rqos);
 }

index 8641ba9793c5..ee708c1bc352 100644
@@ -77,7 +77,8 @@ enum {
 
 static inline bool rwb_enabled(struct rq_wb *rwb)
 {
-	return rwb && rwb->wb_normal != 0;
+	return rwb && rwb->enable_state != WBT_STATE_OFF_DEFAULT &&
+		      rwb->wb_normal != 0;
 }
 
 static void wb_timestamp(struct rq_wb *rwb, unsigned long *var)

@@ -644,9 +645,13 @@ void wbt_set_write_cache(struct request_queue *q, bool write_cache_on)
 void wbt_enable_default(struct request_queue *q)
 {
 	struct rq_qos *rqos = wbt_rq_qos(q);
+
 	/* Throttling already enabled? */
-	if (rqos)
+	if (rqos) {
+		if (RQWB(rqos)->enable_state == WBT_STATE_OFF_DEFAULT)
+			RQWB(rqos)->enable_state = WBT_STATE_ON_DEFAULT;
 		return;
+	}
 
 	/* Queue not registered? Maybe shutting down... */
 	if (!blk_queue_registered(q))

@@ -710,7 +715,7 @@ void wbt_disable_default(struct request_queue *q)
 	rwb = RQWB(rqos);
 	if (rwb->enable_state == WBT_STATE_ON_DEFAULT) {
 		blk_stat_deactivate(rwb->cb);
-		rwb->wb_normal = 0;
+		rwb->enable_state = WBT_STATE_OFF_DEFAULT;
 	}
 }
 EXPORT_SYMBOL_GPL(wbt_disable_default);

index 8e4e37660971..d8d9f41b42f9 100644
@@ -34,6 +34,7 @@ enum {
 enum {
 	WBT_STATE_ON_DEFAULT	= 1,
 	WBT_STATE_ON_MANUAL	= 2,
+	WBT_STATE_OFF_DEFAULT
 };
 
 struct rq_wb {

index e83c5124f6eb..9c4cdfd8550e 100644
@@ -20,12 +20,24 @@
 
 static const struct crypto_type crypto_shash_type;
 
-int shash_no_setkey(struct crypto_shash *tfm, const u8 *key,
-		    unsigned int keylen)
+static int shash_no_setkey(struct crypto_shash *tfm, const u8 *key,
+			   unsigned int keylen)
 {
 	return -ENOSYS;
 }
-EXPORT_SYMBOL_GPL(shash_no_setkey);
+
+/*
+ * Check whether an shash algorithm has a setkey function.
+ *
+ * For CFI compatibility, this must not be an inline function.  This is because
+ * when CFI is enabled, modules won't get the same address for shash_no_setkey
+ * (if it were exported, which inlining would require) as the core kernel will.
+ */
+bool crypto_shash_alg_has_setkey(struct shash_alg *alg)
+{
+	return alg->setkey != shash_no_setkey;
+}
+EXPORT_SYMBOL_GPL(crypto_shash_alg_has_setkey);
 
 static int shash_setkey_unaligned(struct crypto_shash *tfm, const u8 *key,
 				  unsigned int keylen)

index e7dc0133f817..c11d736a8db7 100644
@@ -262,7 +262,7 @@ static uint32_t acpi_pad_idle_cpus_num(void)
 	return ps_tsk_num;
 }
 
-static ssize_t acpi_pad_rrtime_store(struct device *dev,
+static ssize_t rrtime_store(struct device *dev,
 	struct device_attribute *attr, const char *buf, size_t count)
 {
 	unsigned long num;

@@ -276,16 +276,14 @@ static ssize_t acpi_pad_rrtime_store(struct device *dev,
 	return count;
 }
 
-static ssize_t acpi_pad_rrtime_show(struct device *dev,
+static ssize_t rrtime_show(struct device *dev,
 	struct device_attribute *attr, char *buf)
 {
 	return scnprintf(buf, PAGE_SIZE, "%d\n", round_robin_time);
 }
-static DEVICE_ATTR(rrtime, S_IRUGO|S_IWUSR,
-	acpi_pad_rrtime_show,
-	acpi_pad_rrtime_store);
+static DEVICE_ATTR_RW(rrtime);
 
-static ssize_t acpi_pad_idlepct_store(struct device *dev,
+static ssize_t idlepct_store(struct device *dev,
 	struct device_attribute *attr, const char *buf, size_t count)
 {
 	unsigned long num;

@@ -299,16 +297,14 @@ static ssize_t acpi_pad_idlepct_store(struct device *dev,
 	return count;
 }
 
-static ssize_t acpi_pad_idlepct_show(struct device *dev,
+static ssize_t idlepct_show(struct device *dev,
 	struct device_attribute *attr, char *buf)
 {
 	return scnprintf(buf, PAGE_SIZE, "%d\n", idle_pct);
 }
-static DEVICE_ATTR(idlepct, S_IRUGO|S_IWUSR,
-	acpi_pad_idlepct_show,
-	acpi_pad_idlepct_store);
+static DEVICE_ATTR_RW(idlepct);
 
-static ssize_t acpi_pad_idlecpus_store(struct device *dev,
+static ssize_t idlecpus_store(struct device *dev,
 	struct device_attribute *attr, const char *buf, size_t count)
 {
 	unsigned long num;

@@ -320,16 +316,14 @@ static ssize_t acpi_pad_idlecpus_store(struct device *dev,
 	return count;
 }
 
-static ssize_t acpi_pad_idlecpus_show(struct device *dev,
+static ssize_t idlecpus_show(struct device *dev,
 	struct device_attribute *attr, char *buf)
 {
 	return cpumap_print_to_pagebuf(false, buf,
 				       to_cpumask(pad_busy_cpus_bits));
 }
 
-static DEVICE_ATTR(idlecpus, S_IRUGO|S_IWUSR,
-	acpi_pad_idlecpus_show,
-	acpi_pad_idlecpus_store);
+static DEVICE_ATTR_RW(idlecpus);
 
 static int acpi_pad_add_sysfs(struct acpi_device *device)
 {

index 33a4bcdaa4d7..bab8583443a6 100644
@@ -237,7 +237,7 @@ static ssize_t time_show(struct device *dev, struct device_attribute *attr,
 		       rt.tz, rt.daylight);
 }
 
-static DEVICE_ATTR(time, S_IRUSR | S_IWUSR, time_show, time_store);
+static DEVICE_ATTR_RW(time);
 
 static struct attribute *acpi_tad_time_attrs[] = {
 	&dev_attr_time.attr,

@@ -446,7 +446,7 @@ static ssize_t ac_alarm_show(struct device *dev, struct device_attribute *attr,
 	return acpi_tad_alarm_read(dev, buf, ACPI_TAD_AC_TIMER);
 }
 
-static DEVICE_ATTR(ac_alarm, S_IRUSR | S_IWUSR, ac_alarm_show, ac_alarm_store);
+static DEVICE_ATTR_RW(ac_alarm);
 
 static ssize_t ac_policy_store(struct device *dev, struct device_attribute *attr,
 			       const char *buf, size_t count)

@@ -462,7 +462,7 @@ static ssize_t ac_policy_show(struct device *dev, struct device_attribute *attr,
 	return acpi_tad_policy_read(dev, buf, ACPI_TAD_AC_TIMER);
 }
 
-static DEVICE_ATTR(ac_policy, S_IRUSR | S_IWUSR, ac_policy_show, ac_policy_store);
+static DEVICE_ATTR_RW(ac_policy);
 
 static ssize_t ac_status_store(struct device *dev, struct device_attribute *attr,
 			       const char *buf, size_t count)

@@ -478,7 +478,7 @@ static ssize_t ac_status_show(struct device *dev, struct device_attribute *attr,
 	return acpi_tad_status_read(dev, buf, ACPI_TAD_AC_TIMER);
 }
 
-static DEVICE_ATTR(ac_status, S_IRUSR | S_IWUSR, ac_status_show, ac_status_store);
+static DEVICE_ATTR_RW(ac_status);
 
 static struct attribute *acpi_tad_attrs[] = {
 	&dev_attr_caps.attr,

@@ -505,7 +505,7 @@ static ssize_t dc_alarm_show(struct device *dev, struct device_attribute *attr,
 	return acpi_tad_alarm_read(dev, buf, ACPI_TAD_DC_TIMER);
 }
 
-static DEVICE_ATTR(dc_alarm, S_IRUSR | S_IWUSR, dc_alarm_show, dc_alarm_store);
+static DEVICE_ATTR_RW(dc_alarm);
 
 static ssize_t dc_policy_store(struct device *dev, struct device_attribute *attr,
 			       const char *buf, size_t count)

@@ -521,7 +521,7 @@ static ssize_t dc_policy_show(struct device *dev, struct device_attribute *attr,
 	return acpi_tad_policy_read(dev, buf, ACPI_TAD_DC_TIMER);
 }
 
-static DEVICE_ATTR(dc_policy, S_IRUSR | S_IWUSR, dc_policy_show, dc_policy_store);
+static DEVICE_ATTR_RW(dc_policy);
 
 static ssize_t dc_status_store(struct device *dev, struct device_attribute *attr,
 			       const char *buf, size_t count)

@@ -537,7 +537,7 @@ static ssize_t dc_status_show(struct device *dev, struct device_attribute *attr,
 	return acpi_tad_status_read(dev, buf, ACPI_TAD_DC_TIMER);
 }
 
-static DEVICE_ATTR(dc_status, S_IRUSR | S_IWUSR, dc_status_show, dc_status_store);
+static DEVICE_ATTR_RW(dc_status);
 
 static struct attribute *acpi_tad_dc_attrs[] = {
 	&dev_attr_dc_alarm.attr,

index 663d85e0adba..b7c408ce340c 100644
@@ -375,6 +375,13 @@ acpi_ns_repair_CID(struct acpi_evaluate_info *info,
 
 			(*element_ptr)->common.reference_count =
 			    original_ref_count;
+
+			/*
+			 * The original_element holds a reference from the package object
+			 * that represents _HID. Since a new element was created by _HID,
+			 * remove the reference from the _CID package.
+			 */
+			acpi_ut_remove_reference(original_element);
 		}
 
 		element_ptr++;

69 lines not on this page · raw message

index 54002670cb7a..bbd9c93fc4c2 100644
@@ -1240,6 +1240,7 @@ static int __init acpi_init(void)
 
 	result = acpi_bus_init();
 	if (result) {
+		kobject_put(acpi_kobj);
 		disable_acpi();
 		return result;
 	}

119 lines not on this page · raw message

index e3414131bfca..9bb42a772bee 100644
@@ -485,7 +485,7 @@ int dock_notify(struct acpi_device *adev, u32 event)
 /*
  * show_docked - read method for "docked" file in sysfs
  */
-static ssize_t show_docked(struct device *dev,
+static ssize_t docked_show(struct device *dev,
 			   struct device_attribute *attr, char *buf)
 {
 	struct dock_station *dock_station = dev->platform_data;

@@ -494,25 +494,25 @@ static ssize_t show_docked(struct device *dev,
 	acpi_bus_get_device(dock_station->handle, &adev);
 	return snprintf(buf, PAGE_SIZE, "%u\n", acpi_device_enumerated(adev));
 }
-static DEVICE_ATTR(docked, S_IRUGO, show_docked, NULL);
+static DEVICE_ATTR_RO(docked);
 
 /*
  * show_flags - read method for flags file in sysfs
  */
-static ssize_t show_flags(struct device *dev,
+static ssize_t flags_show(struct device *dev,
 			  struct device_attribute *attr, char *buf)
 {
 	struct dock_station *dock_station = dev->platform_data;
 	return snprintf(buf, PAGE_SIZE, "%d\n", dock_station->flags);
 
 }
-static DEVICE_ATTR(flags, S_IRUGO, show_flags, NULL);
+static DEVICE_ATTR_RO(flags);
 
 /*
  * write_undock - write method for "undock" file in sysfs
  */
-static ssize_t write_undock(struct device *dev, struct device_attribute *attr,
-			   const char *buf, size_t count)
+static ssize_t undock_store(struct device *dev, struct device_attribute *attr,
+			    const char *buf, size_t count)
 {
 	int ret;
 	struct dock_station *dock_station = dev->platform_data;

@@ -526,13 +526,13 @@ static ssize_t write_undock(struct device *dev, struct device_attribute *attr,
 	acpi_scan_lock_release();
 	return ret ? ret: count;
 }
-static DEVICE_ATTR(undock, S_IWUSR, NULL, write_undock);
+static DEVICE_ATTR_WO(undock);
 
 /*
  * show_dock_uid - read method for "uid" file in sysfs
  */
-static ssize_t show_dock_uid(struct device *dev,
-			     struct device_attribute *attr, char *buf)
+static ssize_t uid_show(struct device *dev,
+			struct device_attribute *attr, char *buf)
 {
 	unsigned long long lbuf;
 	struct dock_station *dock_station = dev->platform_data;

@@ -543,10 +543,10 @@ static ssize_t show_dock_uid(struct device *dev,
 
 	return snprintf(buf, PAGE_SIZE, "%llx\n", lbuf);
 }
-static DEVICE_ATTR(uid, S_IRUGO, show_dock_uid, NULL);
+static DEVICE_ATTR_RO(uid);
 
-static ssize_t show_dock_type(struct device *dev,
-		struct device_attribute *attr, char *buf)
+static ssize_t type_show(struct device *dev,
+			 struct device_attribute *attr, char *buf)
 {
 	struct dock_station *dock_station = dev->platform_data;
 	char *type;

@@ -562,7 +562,7 @@ static ssize_t show_dock_type(struct device *dev,
 
 	return snprintf(buf, PAGE_SIZE, "%s\n", type);
 }
-static DEVICE_ATTR(type, S_IRUGO, show_dock_type, NULL);
+static DEVICE_ATTR_RO(type);
 
 static struct attribute *dock_attributes[] = {
 	&dev_attr_docked.attr,

index c64001e789ed..258a8df235cf 100644
@@ -1826,6 +1826,22 @@ static const struct dmi_system_id ec_dmi_table[] __initconst = {
 	DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 	DMI_MATCH(DMI_PRODUCT_NAME, "GL702VMK"),}, NULL},
 	{
+	ec_honor_ecdt_gpe, "ASUSTeK COMPUTER INC. X505BA", {
+	DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+	DMI_MATCH(DMI_PRODUCT_NAME, "X505BA"),}, NULL},
+	{
+	ec_honor_ecdt_gpe, "ASUSTeK COMPUTER INC. X505BP", {
+	DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+	DMI_MATCH(DMI_PRODUCT_NAME, "X505BP"),}, NULL},
+	{
+	ec_honor_ecdt_gpe, "ASUSTeK COMPUTER INC. X542BA", {
+	DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+	DMI_MATCH(DMI_PRODUCT_NAME, "X542BA"),}, NULL},
+	{
+	ec_honor_ecdt_gpe, "ASUSTeK COMPUTER INC. X542BP", {
+	DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+	DMI_MATCH(DMI_PRODUCT_NAME, "X542BP"),}, NULL},
+	{
 	ec_honor_ecdt_gpe, "ASUS X550VXK", {
 	DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 	DMI_MATCH(DMI_PRODUCT_NAME, "X550VXK"),}, NULL},

index fe1e7bc91a5e..3261cffdd5e0 100644
@@ -888,15 +888,16 @@ static void acpi_release_power_resource(struct device *dev)
 	kfree(resource);
 }
 
-static ssize_t acpi_power_in_use_show(struct device *dev,
-				      struct device_attribute *attr,
-				      char *buf) {
+static ssize_t resource_in_use_show(struct device *dev,
+				    struct device_attribute *attr,
+				    char *buf)
+{
 	struct acpi_power_resource *resource;
 
 	resource = to_power_resource(to_acpi_device(dev));
 	return sprintf(buf, "%u\n", !!resource->ref_count);
 }
-static DEVICE_ATTR(resource_in_use, 0444, acpi_power_in_use_show, NULL);
+static DEVICE_ATTR_RO(resource_in_use);
 
 static void acpi_power_sysfs_remove(struct acpi_device *device)
 {

index ed56c6d20b08..53ae679c00f0 100644
@@ -16,6 +16,7 @@
 #include <linux/acpi.h>
 #include <linux/dmi.h>
 #include <linux/sched.h>       /* need_resched() */
+#include <linux/sort.h>
 #include <linux/tick.h>
 #include <linux/cpuidle.h>
 #include <linux/cpu.h>

@@ -540,10 +541,37 @@ static void acpi_processor_power_verify_c3(struct acpi_processor *pr,
 	return;
 }
 
+static int acpi_cst_latency_cmp(const void *a, const void *b)
+{
+	const struct acpi_processor_cx *x = a, *y = b;
+
+	if (!(x->valid && y->valid))
+		return 0;
+	if (x->latency > y->latency)
+		return 1;
+	if (x->latency < y->latency)
+		return -1;
+	return 0;
+}
+static void acpi_cst_latency_swap(void *a, void *b, int n)
+{
+	struct acpi_processor_cx *x = a, *y = b;
+	u32 tmp;
+
+	if (!(x->valid && y->valid))
+		return;
+	tmp = x->latency;
+	x->latency = y->latency;
+	y->latency = tmp;
+}
+
 static int acpi_processor_power_verify(struct acpi_processor *pr)
 {
 	unsigned int i;
 	unsigned int working = 0;
+	unsigned int last_latency = 0;
+	unsigned int last_type = 0;
+	bool buggy_latency = false;
 
 	pr->power.timer_broadcast_on_state = INT_MAX;
 

@@ -567,12 +595,24 @@ static int acpi_processor_power_verify(struct acpi_processor *pr)
 		}
 		if (!cx->valid)
 			continue;
+		if (cx->type >= last_type && cx->latency < last_latency)
+			buggy_latency = true;
+		last_latency = cx->latency;
+		last_type = cx->type;
 
 		lapic_timer_check_state(i, pr, cx);
 		tsc_check_state(cx->type);
 		working++;
 	}
 
+	if (buggy_latency) {
+		pr_notice("FW issue: working around C-state latencies out of order\n");
+		sort(&pr->power.states[1], max_cstate,
+		     sizeof(struct acpi_processor_cx),
+		     acpi_cst_latency_cmp,
+		     acpi_cst_latency_swap);
+	}
+
 	lapic_timer_propagate_broadcast(pr);
 
 	return (working);

index 48ca9a844f06..55c57b703ea3 100644
@@ -430,6 +430,13 @@ static void acpi_dev_get_irqresource(struct resource *res, u32 gsi,
 	}
 }
 
+static bool irq_is_legacy(struct acpi_resource_irq *irq)
+{
+	return irq->triggering == ACPI_EDGE_SENSITIVE &&
+		irq->polarity == ACPI_ACTIVE_HIGH &&
+		irq->shareable == ACPI_EXCLUSIVE;
+}
+
 /**
  * acpi_dev_resource_interrupt - Extract ACPI interrupt resource information.
  * @ares: Input ACPI resource object.

@@ -468,7 +475,7 @@ bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index,
 		}
 		acpi_dev_get_irqresource(res, irq->interrupts[index],
 					 irq->triggering, irq->polarity,
-					 irq->shareable, true);
+					 irq->shareable, irq_is_legacy(irq));
 		break;
 	case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
 		ext_irq = &ares->data.extended_irq;

index badab6708893..46208ececbb6 100644
@@ -928,7 +928,7 @@ static int ep93xx_pata_probe(struct platform_device *pdev)
 	/* INT[3] (IRQ_EP93XX_EXT3) line connected as pull down */
 	irq = platform_get_irq(pdev, 0);
 	if (irq < 0) {
-		err = -ENXIO;
+		err = irq;
 		goto err_rel_gpio;
 	}
 

index d3d851b014a3..ac3b1fda820f 100644
@@ -898,10 +898,11 @@ static int octeon_cf_probe(struct platform_device *pdev)
 					return -EINVAL;
 				}
 
-				irq_handler = octeon_cf_interrupt;
 				i = platform_get_irq(dma_dev, 0);
-				if (i > 0)
+				if (i > 0) {
 					irq = i;
+					irq_handler = octeon_cf_interrupt;
+				}
 			}
 			of_node_put(dma_node);
 		}

index deae466395de..1e6d61dc966a 100644
@@ -115,10 +115,12 @@ static int rb532_pata_driver_probe(struct platform_device *pdev)
 	}
 
 	irq = platform_get_irq(pdev, 0);
-	if (irq <= 0) {
+	if (irq < 0) {
 		dev_err(&pdev->dev, "no IRQ resource found\n");
-		return -ENOENT;
+		return irq;
 	}
+	if (!irq)
+		return -EINVAL;
 
 	gpiod = devm_gpiod_get(&pdev->dev, NULL, GPIOD_IN);
 	if (IS_ERR(gpiod)) {

index ad3893c62572..bcf705f512f0 100644
@@ -469,10 +469,12 @@ static int ahci_highbank_probe(struct platform_device *pdev)
 	}
 
 	irq = platform_get_irq(pdev, 0);
-	if (irq <= 0) {
+	if (irq < 0) {
 		dev_err(dev, "no irq\n");
-		return -EINVAL;
+		return irq;
 	}
+	if (!irq)
+		return -EINVAL;
 
 	hpriv = devm_kzalloc(dev, sizeof(*hpriv), GFP_KERNEL);
 	if (!hpriv) {

index b4b52ab23b6b..b4e931dbff66 100644
@@ -134,7 +134,7 @@ static int exynos_trng_probe(struct platform_device *pdev)
 		return PTR_ERR(trng->mem);
 
 	pm_runtime_enable(&pdev->dev);
-	ret = pm_runtime_get_sync(&pdev->dev);
+	ret = pm_runtime_resume_and_get(&pdev->dev);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "Could not get runtime PM.\n");
 		goto err_pm_get;

@@ -167,7 +167,7 @@ static int exynos_trng_probe(struct platform_device *pdev)
 	clk_disable_unprepare(trng->clk);
 
 err_clock:
-	pm_runtime_put_sync(&pdev->dev);
+	pm_runtime_put_noidle(&pdev->dev);
 
 err_pm_get:
 	pm_runtime_disable(&pdev->dev);

index 15bf585af5d3..44117169db91 100644
@@ -544,6 +544,10 @@ static int set_protocol(struct cm4000_dev *dev, struct ptsreq *ptsreq)
 		io_read_num_rec_bytes(iobase, &num_bytes_read);
 		if (num_bytes_read >= 4) {
 			DEBUGP(2, dev, "NumRecBytes = %i\n", num_bytes_read);
+			if (num_bytes_read > 4) {
+				rc = -EIO;
+				goto exit_setprotocol;
+			}
 			break;
 		}
 		usleep_range(10000, 11000);

142 lines not on this page · raw message

index 6e780c2a9e6b..8f9f3d4a54fd 100644
@@ -304,6 +304,8 @@ static const struct si5341_reg_default si5341_reg_defaults[] = {
 	{ 0x094A, 0x00 }, /* INx_TO_PFD_EN (disabled) */
 	{ 0x0A02, 0x00 }, /* Not in datasheet */
 	{ 0x0B44, 0x0F }, /* PDIV_ENB (datasheet does not mention what it is) */
+	{ 0x0B57, 0x10 }, /* VCO_RESET_CALCODE (not described in datasheet) */
+	{ 0x0B58, 0x05 }, /* VCO_RESET_CALCODE (not described in datasheet) */
 };
 
 /* Read and interpret a 44-bit followed by a 32-bit value in the regmap */

@@ -482,6 +484,9 @@ static unsigned long si5341_synth_clk_recalc_rate(struct clk_hw *hw,
 			SI5341_SYNTH_N_NUM(synth->index), &n_num, &n_den);
 	if (err < 0)
 		return err;
+	/* Check for bogus/uninitialized settings */
+	if (!n_num || !n_den)
+		return 0;
 
 	/*
 	 * n_num and n_den are shifted left as much as possible, so to prevent

@@ -665,6 +670,9 @@ static long si5341_output_clk_round_rate(struct clk_hw *hw, unsigned long rate,
 {
 	unsigned long r;
 
+	if (!rate)
+		return 0;
+
 	r = *parent_rate >> 1;
 
 	/* If rate is an even divisor, no changes to parent required */

@@ -693,11 +701,16 @@ static int si5341_output_clk_set_rate(struct clk_hw *hw, unsigned long rate,
 		unsigned long parent_rate)
 {
 	struct clk_si5341_output *output = to_clk_si5341_output(hw);
-	/* Frequency divider is (r_div + 1) * 2 */
-	u32 r_div = (parent_rate / rate) >> 1;
+	u32 r_div;
 	int err;
 	u8 r[3];
 
+	if (!rate)
+		return -EINVAL;
+
+	/* Frequency divider is (r_div + 1) * 2 */
+	r_div = (parent_rate / rate) >> 1;
+
 	if (r_div <= 1)
 		r_div = 0;
 	else if (r_div >= BIT(24))

@@ -924,7 +937,7 @@ static const struct si5341_reg_default si5341_preamble[] = {
 	{ 0x0B25, 0x00 },
 	{ 0x0502, 0x01 },
 	{ 0x0505, 0x03 },
-	{ 0x0957, 0x1F },
+	{ 0x0957, 0x17 },
 	{ 0x0B4E, 0x1A },
 };
 

index 3143e16065de..a55b22ebf103 100644
@@ -1602,7 +1602,7 @@ static struct clk_regmap g12b_cpub_clk_trace = {
 };
 
 static const struct pll_mult_range g12a_gp0_pll_mult_range = {
-	.min = 55,
+	.min = 125,
 	.max = 255,
 };
 

index 194a6587a1de..c4e928375c40 100644
@@ -1361,9 +1361,14 @@ static int cpufreq_online(unsigned int cpu)
 			goto out_free_policy;
 		}
 
+		/*
+		 * The initialization has succeeded and the policy is online.
+		 * If there is a problem with its frequency table, take it
+		 * offline and drop it.
+		 */
 		ret = cpufreq_table_validate_and_sort(policy);
 		if (ret)
-			goto out_exit_policy;
+			goto out_offline_policy;
 
 		/* related_cpus should at least include policy->cpus. */
 		cpumask_copy(policy->related_cpus, policy->cpus);

@@ -1507,6 +1512,10 @@ static int cpufreq_online(unsigned int cpu)
 
 	up_write(&policy->rwsem);
 
+out_offline_policy:
+	if (cpufreq_driver->offline)
+		cpufreq_driver->offline(policy);
+
 out_exit_policy:
 	if (cpufreq_driver->exit)
 		cpufreq_driver->exit(policy);

index 3dec570a190a..10e3408bf704 100644
@@ -306,6 +306,10 @@ int nitrox_register_interrupts(struct nitrox_device *ndev)
 	 * Entry 192: NPS_CORE_INT_ACTIVE
 	 */
 	nr_vecs = pci_msix_vec_count(pdev);
+	if (nr_vecs < 0) {
+		dev_err(DEV(ndev), "Error in getting vec count %d\n", nr_vecs);
+		return nr_vecs;
+	}
 
 	/* Enable MSI-X */
 	ret = pci_alloc_irq_vectors(pdev, nr_vecs, nr_vecs, PCI_IRQ_MSIX);

index b29d2e663e10..f607b19ff4d2 100644
@@ -213,7 +213,7 @@ static int sp_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 		if (ret) {
 			dev_err(dev, "dma_set_mask_and_coherent failed (%d)\n",
 				ret);
-			goto e_err;
+			goto free_irqs;
 		}
 	}
 

@@ -221,10 +221,12 @@ static int sp_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 
 	ret = sp_init(sp);
 	if (ret)
-		goto e_err;
+		goto free_irqs;
 
 	return 0;
 
+free_irqs:
+	sp_free_irqs(sp);
 e_err:
 	dev_notice(dev, "initialization failed\n");
 	return ret;

index acaa504d5a79..e02ff2b205d0 100644
@@ -329,7 +329,7 @@ static void free_buf_chain(struct device *dev, struct buffer_desc *buf,
 
 		buf1 = buf->next;
 		phys1 = buf->phys_next;
-		dma_unmap_single(dev, buf->phys_next, buf->buf_len, buf->dir);
+		dma_unmap_single(dev, buf->phys_addr, buf->buf_len, buf->dir);
 		dma_pool_free(buffer_pool, buf, phys);
 		buf = buf1;
 		phys = phys1;

index 2de5e3672e42..c5ec50a28f30 100644
@@ -538,13 +538,15 @@ static int nx842_OF_set_defaults(struct nx842_devdata *devdata)
  * The status field indicates if the device is enabled when the status
  * is 'okay'.  Otherwise the device driver will be disabled.
  *
- * @prop - struct property point containing the maxsyncop for the update
+ * @devdata: struct nx842_devdata to use for dev_info
+ * @prop: struct property point containing the maxsyncop for the update
  *
  * Returns:
  *  0 - Device is available
  *  -ENODEV - Device is not available
  */
-static int nx842_OF_upd_status(struct property *prop)
+static int nx842_OF_upd_status(struct nx842_devdata *devdata,
+			       struct property *prop)
 {
 	const char *status = (const char *)prop->value;
 

@@ -758,7 +760,7 @@ static int nx842_OF_upd(struct property *new_prop)
 		goto out;
 
 	/* Perform property updates */
-	ret = nx842_OF_upd_status(status);
+	ret = nx842_OF_upd_status(new_devdata, status);
 	if (ret)
 		goto error_out;
 

@@ -1071,6 +1073,7 @@ static const struct vio_device_id nx842_vio_driver_ids[] = {
 	{"ibm,compression-v1", "ibm,compression"},
 	{"", ""},
 };
+MODULE_DEVICE_TABLE(vio, nx842_vio_driver_ids);
 
 static struct vio_driver nx842_vio_driver = {
 	.name = KBUILD_MODNAME,

index d7c0c982ba43..f80db1eb2994 100644
@@ -364,7 +364,7 @@ static int omap_sham_hw_init(struct omap_sham_dev *dd)
 {
 	int err;
 
-	err = pm_runtime_get_sync(dd->dev);
+	err = pm_runtime_resume_and_get(dd->dev);
 	if (err < 0) {
 		dev_err(dd->dev, "failed to get sync: %d\n", err);
 		return err;

@@ -2236,7 +2236,7 @@ static int omap_sham_suspend(struct device *dev)
 
 static int omap_sham_resume(struct device *dev)
 {
-	int err = pm_runtime_get_sync(dev);
+	int err = pm_runtime_resume_and_get(dev);
 	if (err < 0) {
 		dev_err(dev, "failed to get sync: %d\n", err);
 		return err;

index dac130bb807a..eda692271f0c 100644
@@ -1256,7 +1256,11 @@ static int qat_hal_put_rel_wr_xfer(struct icp_qat_fw_loader_handle *handle,
 		pr_err("QAT: bad xfrAddr=0x%x\n", xfr_addr);
 		return -EINVAL;
 	}
-	qat_hal_rd_rel_reg(handle, ae, ctx, ICP_GPB_REL, gprnum, &gprval);
+	status = qat_hal_rd_rel_reg(handle, ae, ctx, ICP_GPB_REL, gprnum, &gprval);
+	if (status) {
+		pr_err("QAT: failed to read register");
+		return status;
+	}
 	gpr_addr = qat_hal_get_reg_addr(ICP_GPB_REL, gprnum);
 	data16low = 0xffff & data;
 	data16hi = 0xffff & (data >> 0x10);

index aeb03081415c..9542423bb7ca 100644
@@ -385,7 +385,6 @@ static int qat_uclo_init_umem_seg(struct icp_qat_fw_loader_handle *handle,
 	return 0;
 }
 
-#define ICP_DH895XCC_PESRAM_BAR_SIZE 0x80000
 static int qat_uclo_init_ae_memory(struct icp_qat_fw_loader_handle *handle,
 				   struct icp_qat_uof_initmem *init_mem)
 {

index c172a6953477..38a66aceca2a 100644
@@ -1009,6 +1009,7 @@ static int hash_hw_final(struct ahash_request *req)
 			goto out;
 		}
 	} else if (req->nbytes == 0 && ctx->keylen > 0) {
+		ret = -EPERM;
 		dev_err(device_data->dev, "%s: Empty message with keylength > 0, NOT supported\n",
 			__func__);
 		goto out;

index dfcde7ed9500..f72be5f94e6f 100644
@@ -249,6 +249,9 @@ static int __init i10nm_init(void)
 	if (owner && strncmp(owner, EDAC_MOD_STR, sizeof(EDAC_MOD_STR)))
 		return -EBUSY;
 
+	if (cpu_feature_enabled(X86_FEATURE_HYPERVISOR))
+		return -ENODEV;
+
 	id = x86_match_cpu(i10nm_cpuids);
 	if (!id)
 		return -ENODEV;

index dac45e2071b3..e054eb038903 100644
@@ -1555,6 +1555,9 @@ static int __init pnd2_init(void)
 	if (owner && strncmp(owner, EDAC_MOD_STR, sizeof(EDAC_MOD_STR)))
 		return -EBUSY;
 
+	if (cpu_feature_enabled(X86_FEATURE_HYPERVISOR))
+		return -ENODEV;
+
 	id = x86_match_cpu(pnd2_cpuids);
 	if (!id)
 		return -ENODEV;

index b557a53c75c4..d39f5bfb8bd9 100644
@@ -3512,6 +3512,9 @@ static int __init sbridge_init(void)
 	if (owner && strncmp(owner, EDAC_MOD_STR, sizeof(EDAC_MOD_STR)))
 		return -EBUSY;
 
+	if (cpu_feature_enabled(X86_FEATURE_HYPERVISOR))
+		return -ENODEV;
+
 	id = x86_match_cpu(sbridge_cpuids);
 	if (!id)
 		return -ENODEV;

index 77cd370bd62f..b1d717cb8df9 100644
@@ -605,6 +605,9 @@ static int __init skx_init(void)
 	if (owner && strncmp(owner, EDAC_MOD_STR, sizeof(EDAC_MOD_STR)))
 		return -EBUSY;
 
+	if (cpu_feature_enabled(X86_FEATURE_HYPERVISOR))
+		return -ENODEV;
+
 	id = x86_match_cpu(skx_cpuids);
 	if (!id)
 		return -ENODEV;

index 324768946743..9ab9fa0a911b 100644
@@ -197,6 +197,7 @@ static const struct of_device_id ti_edac_of_match[] = {
 	{ .compatible = "ti,emif-dra7xx", .data = (void *)EMIF_TYPE_DRA7 },
 	{},
 };
+MODULE_DEVICE_TABLE(of, ti_edac_of_match);
 
 static int _emif_get_id(struct device_node *node)
 {

index 172e116ac1ce..cac36ef59e45 100644
@@ -729,7 +729,7 @@ static int max8997_muic_probe(struct platform_device *pdev)
 				2, info->status);
 	if (ret) {
 		dev_err(info->dev, "failed to read MUIC register\n");
-		return ret;
+		goto err_irq;
 	}
 	cable_type = max8997_muic_get_cable_type(info,
 					   MAX8997_CABLE_GROUP_ADC, &attached);

@@ -784,3 +784,4 @@ module_platform_driver(max8997_muic_driver);
 MODULE_DESCRIPTION("Maxim MAX8997 Extcon driver");
 MODULE_AUTHOR("Donggeun Kim <[email protected]>");
 MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:max8997-muic");

index b3d93baf4fc5..f883992800b3 100644
@@ -88,7 +88,6 @@ static struct reg_data sm5502_reg_data[] = {
 			| SM5502_REG_INTM2_MHL_MASK,
 		.invert = true,
 	},
-	{ }
 };
 
 /* List of detectable cables */

index b485321189e1..b2b4ba240fb1 100644
@@ -1026,24 +1026,32 @@ static int stratix10_svc_drv_probe(struct platform_device *pdev)
 
 	/* add svc client device(s) */
 	svc = devm_kzalloc(dev, sizeof(*svc), GFP_KERNEL);
-	if (!svc)
-		return -ENOMEM;
+	if (!svc) {
+		ret = -ENOMEM;
+		goto err_free_kfifo;
+	}
 
 	svc->stratix10_svc_rsu = platform_device_alloc(STRATIX10_RSU, 0);
 	if (!svc->stratix10_svc_rsu) {
 		dev_err(dev, "failed to allocate %s device\n", STRATIX10_RSU);
-		return -ENOMEM;
+		ret = -ENOMEM;
+		goto err_free_kfifo;
 	}
 
 	ret = platform_device_add(svc->stratix10_svc_rsu);
-	if (ret) {
-		platform_device_put(svc->stratix10_svc_rsu);
-		return ret;
-	}
+	if (ret)
+		goto err_put_device;
+
 	dev_set_drvdata(dev, svc);
 
 	pr_info("Intel Service Layer Driver Initialized\n");
 
+	return 0;
+
+err_put_device:
+	platform_device_put(svc->stratix10_svc_rsu);
+err_free_kfifo:
+	kfifo_free(&controller->svc_fifo);
 	return ret;
 }
 

index 9282239b4d95..cb980a60af0e 100644
@@ -718,7 +718,7 @@ static ssize_t cfam_read(struct file *filep, char __user *buf, size_t count,
 	rc = count;
  fail:
 	*offset = off;
-	return count;
+	return rc;
 }
 
 static ssize_t cfam_write(struct file *filep, const char __user *buf,

@@ -755,7 +755,7 @@ static ssize_t cfam_write(struct file *filep, const char __user *buf,
 	rc = count;
  fail:
 	*offset = off;
-	return count;
+	return rc;
 }
 
 static loff_t cfam_llseek(struct file *file, loff_t offset, int whence)

index 7da9c81759ac..8f1644804570 100644
@@ -445,6 +445,7 @@ int fsi_occ_submit(struct device *dev, const void *request, size_t req_len,
 			goto done;
 
 		if (resp->return_status == OCC_RESP_CMD_IN_PRG ||
+		    resp->return_status == OCC_RESP_CRIT_INIT ||
 		    resp->seq_no != seq_no) {
 			rc = -ETIMEDOUT;
 

index f54df9ebc8b3..c8ccc99e214f 100644
@@ -325,7 +325,8 @@ static int sbefifo_up_write(struct sbefifo *sbefifo, __be32 word)
 static int sbefifo_request_reset(struct sbefifo *sbefifo)
 {
 	struct device *dev = &sbefifo->fsi_dev->dev;
-	u32 status, timeout;
+	unsigned long end_time;
+	u32 status;
 	int rc;
 
 	dev_dbg(dev, "Requesting FIFO reset\n");

@@ -341,7 +342,8 @@ static int sbefifo_request_reset(struct sbefifo *sbefifo)
 	}
 
 	/* Wait for it to complete */
-	for (timeout = 0; timeout < SBEFIFO_RESET_TIMEOUT; timeout++) {
+	end_time = jiffies + msecs_to_jiffies(SBEFIFO_RESET_TIMEOUT);
+	while (!time_after(jiffies, end_time)) {
 		rc = sbefifo_regr(sbefifo, SBEFIFO_UP | SBEFIFO_STS, &status);
 		if (rc) {
 			dev_err(dev, "Failed to read UP fifo status during reset"

@@ -355,7 +357,7 @@ static int sbefifo_request_reset(struct sbefifo *sbefifo)
 			return 0;
 		}
 
-		msleep(1);
+		cond_resched();
 	}
 	dev_err(dev, "FIFO reset timed out\n");
 

@@ -400,7 +402,7 @@ static int sbefifo_cleanup_hw(struct sbefifo *sbefifo)
 	/* The FIFO already contains a reset request from the SBE ? */
 	if (down_status & SBEFIFO_STS_RESET_REQ) {
 		dev_info(dev, "Cleanup: FIFO reset request set, resetting\n");
-		rc = sbefifo_regw(sbefifo, SBEFIFO_UP, SBEFIFO_PERFORM_RESET);
+		rc = sbefifo_regw(sbefifo, SBEFIFO_DOWN, SBEFIFO_PERFORM_RESET);
 		if (rc) {
 			sbefifo->broken = true;
 			dev_err(dev, "Cleanup: Reset reg write failed, rc=%d\n", rc);

index 004dc03ccf09..918367621086 100644
@@ -38,9 +38,10 @@
 #define SCOM_STATUS_PIB_RESP_MASK	0x00007000
 #define SCOM_STATUS_PIB_RESP_SHIFT	12
 
-#define SCOM_STATUS_ANY_ERR		(SCOM_STATUS_PROTECTION | \
-					 SCOM_STATUS_PARITY |	  \
-					 SCOM_STATUS_PIB_ABORT | \
+#define SCOM_STATUS_FSI2PIB_ERROR	(SCOM_STATUS_PROTECTION |	\
+					 SCOM_STATUS_PARITY |		\
+					 SCOM_STATUS_PIB_ABORT)
+#define SCOM_STATUS_ANY_ERR		(SCOM_STATUS_FSI2PIB_ERROR |	\
 					 SCOM_STATUS_PIB_RESP_MASK)
 /* SCOM address encodings */
 #define XSCOM_ADDR_IND_FLAG		BIT_ULL(63)

@@ -240,13 +241,14 @@ static int handle_fsi2pib_status(struct scom_device *scom, uint32_t status)
 {
 	uint32_t dummy = -1;
 
-	if (status & SCOM_STATUS_PROTECTION)
-		return -EPERM;
-	if (status & SCOM_STATUS_PARITY) {
+	if (status & SCOM_STATUS_FSI2PIB_ERROR)
 		fsi_device_write(scom->fsi_dev, SCOM_FSI2PIB_RESET_REG, &dummy,
 				 sizeof(uint32_t));
+
+	if (status & SCOM_STATUS_PROTECTION)
+		return -EPERM;
+	if (status & SCOM_STATUS_PARITY)
 		return -EIO;
-	}
 	/* Return -EBUSY on PIB abort to force a retry */
 	if (status & SCOM_STATUS_PIB_ABORT)
 		return -EBUSY;

index 272d19b677d8..4a0dc1348097 100644
@@ -58,6 +58,8 @@ int qxl_mode_dumb_create(struct drm_file *file_priv,
 	surf.height = args->height;
 	surf.stride = pitch;
 	surf.format = format;
+	surf.data = 0;
+
 	r = qxl_gem_object_create_with_handle(qdev, file_priv,
 					      QXL_GEM_DOMAIN_SURFACE,
 					      args->size, &surf, &qobj,

index d505ea7d5384..8f299d76b69b 100644
@@ -72,6 +72,7 @@ static int cdn_dp_grf_write(struct cdn_dp_device *dp,
 	ret = regmap_write(dp->grf, reg, val);
 	if (ret) {
 		DRM_DEV_ERROR(dp->dev, "Could not write to GRF: %d\n", ret);
+		clk_disable_unprepare(dp->grf_clk);
 		return ret;
 	}
 

index bc073ec5c183..ecb59dc6c8b8 100644
@@ -564,13 +564,8 @@ static const struct dw_mipi_dsi_phy_ops dw_mipi_dsi_rockchip_phy_ops = {
 	.get_lane_mbps = dw_mipi_dsi_get_lane_mbps,
 };
 
-static void dw_mipi_dsi_rockchip_config(struct dw_mipi_dsi_rockchip *dsi,
-					int mux)
+static void dw_mipi_dsi_rockchip_config(struct dw_mipi_dsi_rockchip *dsi)
 {
-	if (dsi->cdata->lcdsel_grf_reg)
-		regmap_write(dsi->grf_regmap, dsi->cdata->lcdsel_grf_reg,
-			mux ? dsi->cdata->lcdsel_lit : dsi->cdata->lcdsel_big);
-
 	if (dsi->cdata->lanecfg1_grf_reg)
 		regmap_write(dsi->grf_regmap, dsi->cdata->lanecfg1_grf_reg,
 					      dsi->cdata->lanecfg1);

@@ -584,6 +579,13 @@ static void dw_mipi_dsi_rockchip_config(struct dw_mipi_dsi_rockchip *dsi,
 					      dsi->cdata->enable);
 }
 
+static void dw_mipi_dsi_rockchip_set_lcdsel(struct dw_mipi_dsi_rockchip *dsi,
+					    int mux)
+{
+	regmap_write(dsi->grf_regmap, dsi->cdata->lcdsel_grf_reg,
+		mux ? dsi->cdata->lcdsel_lit : dsi->cdata->lcdsel_big);
+}
+
 static int
 dw_mipi_dsi_encoder_atomic_check(struct drm_encoder *encoder,
 				 struct drm_crtc_state *crtc_state,

@@ -639,9 +641,9 @@ static void dw_mipi_dsi_encoder_enable(struct drm_encoder *encoder)
 		return;
 	}
 
-	dw_mipi_dsi_rockchip_config(dsi, mux);
+	dw_mipi_dsi_rockchip_set_lcdsel(dsi, mux);
 	if (dsi->slave)
-		dw_mipi_dsi_rockchip_config(dsi->slave, mux);
+		dw_mipi_dsi_rockchip_set_lcdsel(dsi->slave, mux);
 
 	clk_disable_unprepare(dsi->grf_clk);
 }

@@ -800,6 +802,24 @@ static int dw_mipi_dsi_rockchip_bind(struct device *dev,
 		return ret;
 	}
 
+	/*
+	 * With the GRF clock running, write lane and dual-mode configurations
+	 * that won't change immediately. If we waited until enable() to do
+	 * this, things like panel preparation would not be able to send
+	 * commands over DSI.
+	 */
+	ret = clk_prepare_enable(dsi->grf_clk);
+	if (ret) {
+		DRM_DEV_ERROR(dsi->dev, "Failed to enable grf_clk: %d\n", ret);
+		return ret;
+	}
+
+	dw_mipi_dsi_rockchip_config(dsi);
+	if (dsi->slave)
+		dw_mipi_dsi_rockchip_config(dsi->slave);
+
+	clk_disable_unprepare(dsi->grf_clk);
+
 	ret = rockchip_dsi_drm_create_encoder(dsi, drm_dev);
 	if (ret) {
 		DRM_DEV_ERROR(dev, "Failed to create drm encoder\n");

index 550fff6e41ec..b6740ad773ee 100644
@@ -2299,12 +2299,8 @@ static int hid_device_remove(struct device *dev)
 {
 	struct hid_device *hdev = to_hid_device(dev);
 	struct hid_driver *hdrv;
-	int ret = 0;
 
-	if (down_interruptible(&hdev->driver_input_lock)) {
-		ret = -EINTR;
-		goto end;
-	}
+	down(&hdev->driver_input_lock);
 	hdev->io_started = false;
 
 	hdrv = hdev->driver;

@@ -2319,8 +2315,8 @@ static int hid_device_remove(struct device *dev)
 
 	if (!hdev->io_started)
 		up(&hdev->driver_input_lock);
-end:
-	return ret;
+
+	return 0;
 }
 
 static ssize_t modalias_show(struct device *dev, struct device_attribute *a,

index 195910dd2154..e3835407e8d2 100644
@@ -122,7 +122,7 @@
 #define WACOM_HID_WD_TOUCHONOFF         (WACOM_HID_UP_WACOMDIGITIZER | 0x0454)
 #define WACOM_HID_WD_BATTERY_LEVEL      (WACOM_HID_UP_WACOMDIGITIZER | 0x043b)
 #define WACOM_HID_WD_EXPRESSKEY00       (WACOM_HID_UP_WACOMDIGITIZER | 0x0910)
-#define WACOM_HID_WD_EXPRESSKEYCAP00    (WACOM_HID_UP_WACOMDIGITIZER | 0x0950)
+#define WACOM_HID_WD_EXPRESSKEYCAP00    (WACOM_HID_UP_WACOMDIGITIZER | 0x0940)
 #define WACOM_HID_WD_MODE_CHANGE        (WACOM_HID_UP_WACOMDIGITIZER | 0x0980)
 #define WACOM_HID_WD_MUTE_DEVICE        (WACOM_HID_UP_WACOMDIGITIZER | 0x0981)
 #define WACOM_HID_WD_CONTROLPANEL       (WACOM_HID_UP_WACOMDIGITIZER | 0x0982)

index e32681ee7b9f..1671f6f9ea80 100644
@@ -537,8 +537,8 @@ static int hv_timesync_init(struct hv_util_service *srv)
 	 */
 	hv_ptp_clock = ptp_clock_register(&ptp_hyperv_info, NULL);
 	if (IS_ERR_OR_NULL(hv_ptp_clock)) {
-		pr_err("cannot register PTP clock: %ld\n",
-		       PTR_ERR(hv_ptp_clock));
+		pr_err("cannot register PTP clock: %d\n",
+		       PTR_ERR_OR_ZERO(hv_ptp_clock));
 		hv_ptp_clock = NULL;
 	}
 

index 062eceb7be0d..613338cbcb17 100644
@@ -6,7 +6,6 @@
  * Copyright (c) 2016, Intel Corporation.
  */
 
-#include <linux/acpi.h>
 #include <linux/hwmon.h>
 #include <linux/hwmon-sysfs.h>
 #include <linux/kernel.h>

@@ -133,20 +132,12 @@ static const struct spi_device_id max31722_spi_id[] = {
 	{"max31723", 0},
 	{}
 };
-
-static const struct acpi_device_id __maybe_unused max31722_acpi_id[] = {
-	{"MAX31722", 0},
-	{"MAX31723", 0},
-	{}
-};
-
 MODULE_DEVICE_TABLE(spi, max31722_spi_id);
 
 static struct spi_driver max31722_driver = {
 	.driver = {
 		.name = "max31722",
 		.pm = &max31722_pm_ops,
-		.acpi_match_table = ACPI_PTR(max31722_acpi_id),
 	},
 	.probe =            max31722_probe,
 	.remove =           max31722_remove,

93 lines not on this page · raw message

index 1574e4604a4f..aa301c606346 100644
@@ -119,7 +119,11 @@ struct bma180_data {
 	int scale;
 	int bw;
 	bool pmode;
-	u8 buff[16]; /* 3x 16-bit + 8-bit + padding + timestamp */
+	/* Ensure timestamp is naturally aligned */
+	struct {
+		s16 chan[4];
+		s64 timestamp __aligned(8);
+	} scan;
 };
 
 enum bma180_chan {

@@ -675,12 +679,12 @@ static irqreturn_t bma180_trigger_handler(int irq, void *p)
 			mutex_unlock(&data->mutex);
 			goto err;
 		}
-		((s16 *)data->buff)[i++] = ret;
+		data->scan.chan[i++] = ret;
 	}
 
 	mutex_unlock(&data->mutex);
 
-	iio_push_to_buffers_with_timestamp(indio_dev, data->buff, time_ns);
+	iio_push_to_buffers_with_timestamp(indio_dev, &data->scan, time_ns);
 err:
 	iio_trigger_notify_done(indio_dev->trig);
 

index cae905039cb6..71ee42b0266d 100644
@@ -73,7 +73,11 @@ static const int bma220_scale_table[][4] = {
 struct bma220_data {
 	struct spi_device *spi_device;
 	struct mutex lock;
-	s8 buffer[16]; /* 3x8-bit channels + 5x8 padding + 8x8 timestamp */
+	struct {
+		s8 chans[3];
+		/* Ensure timestamp is naturally aligned. */
+		s64 timestamp __aligned(8);
+	} scan;
 	u8 tx_buf[2] ____cacheline_aligned;
 };
 

@@ -104,12 +108,12 @@ static irqreturn_t bma220_trigger_handler(int irq, void *p)
 
 	mutex_lock(&data->lock);
 	data->tx_buf[0] = BMA220_REG_ACCEL_X | BMA220_READ_MASK;
-	ret = spi_write_then_read(spi, data->tx_buf, 1, data->buffer,
+	ret = spi_write_then_read(spi, data->tx_buf, 1, &data->scan.chans,
 				  ARRAY_SIZE(bma220_channels) - 1);
 	if (ret < 0)
 		goto err;
 
-	iio_push_to_buffers_with_timestamp(indio_dev, data->buffer,
+	iio_push_to_buffers_with_timestamp(indio_dev, &data->scan,
 					   pf->timestamp);
 err:
 	mutex_unlock(&data->lock);

index 0d9e2def2b25..f908476fa095 100644
@@ -29,8 +29,11 @@ struct accel_3d_state {
 	struct hid_sensor_hub_callbacks callbacks;
 	struct hid_sensor_common common_attributes;
 	struct hid_sensor_hub_attribute_info accel[ACCEL_3D_CHANNEL_MAX];
-	/* Reserve for 3 channels + padding + timestamp */
-	u32 accel_val[ACCEL_3D_CHANNEL_MAX + 3];
+	/* Ensure timestamp is naturally aligned */
+	struct {
+		u32 accel_val[3];
+		s64 timestamp __aligned(8);
+	} scan;
 	int scale_pre_decml;
 	int scale_post_decml;
 	int scale_precision;

@@ -241,8 +244,8 @@ static int accel_3d_proc_event(struct hid_sensor_hub_device *hsdev,
 			accel_state->timestamp = iio_get_time_ns(indio_dev);
 
 		hid_sensor_push_data(indio_dev,
-				     accel_state->accel_val,
-				     sizeof(accel_state->accel_val),
+				     &accel_state->scan,
+				     sizeof(accel_state->scan),
 				     accel_state->timestamp);
 
 		accel_state->timestamp = 0;

@@ -267,7 +270,7 @@ static int accel_3d_capture_sample(struct hid_sensor_hub_device *hsdev,
 	case HID_USAGE_SENSOR_ACCEL_Y_AXIS:
 	case HID_USAGE_SENSOR_ACCEL_Z_AXIS:
 		offset = usage_id - HID_USAGE_SENSOR_ACCEL_X_AXIS;
-		accel_state->accel_val[CHANNEL_SCAN_INDEX_X + offset] =
+		accel_state->scan.accel_val[CHANNEL_SCAN_INDEX_X + offset] =
 						*(u32 *)raw_data;
 		ret = 0;
 	break;

index da9452e81105..57db60bf2d4c 100644
@@ -132,12 +132,23 @@ enum kx_acpi_type {
 	ACPI_KIOX010A,
 };
 
+enum kxcjk1013_axis {
+	AXIS_X,
+	AXIS_Y,
+	AXIS_Z,
+	AXIS_MAX
+};
+
 struct kxcjk1013_data {
 	struct i2c_client *client;
 	struct iio_trigger *dready_trig;
 	struct iio_trigger *motion_trig;
 	struct mutex mutex;
-	s16 buffer[8];
+	/* Ensure timestamp naturally aligned */
+	struct {
+		s16 chans[AXIS_MAX];
+		s64 timestamp __aligned(8);
+	} scan;
 	u8 odr_bits;
 	u8 range;
 	int wake_thres;

@@ -151,13 +162,6 @@ struct kxcjk1013_data {
 	enum kx_acpi_type acpi_type;
 };
 
-enum kxcjk1013_axis {
-	AXIS_X,
-	AXIS_Y,
-	AXIS_Z,
-	AXIS_MAX,
-};
-
 enum kxcjk1013_mode {
 	STANDBY,
 	OPERATION,

@@ -1078,12 +1082,12 @@ static irqreturn_t kxcjk1013_trigger_handler(int irq, void *p)
 	ret = i2c_smbus_read_i2c_block_data_or_emulated(data->client,
 							KXCJK1013_REG_XOUT_L,
 							AXIS_MAX * 2,
-							(u8 *)data->buffer);
+							(u8 *)data->scan.chans);
 	mutex_unlock(&data->mutex);
 	if (ret < 0)
 		goto err;
 
-	iio_push_to_buffers_with_timestamp(indio_dev, data->buffer,
+	iio_push_to_buffers_with_timestamp(indio_dev, &data->scan,
 					   data->timestamp);
 err:
 	iio_trigger_notify_done(indio_dev->trig);

index 3d5bea651923..d81b02642a0b 100644
@@ -56,7 +56,11 @@ struct mxc4005_data {
 	struct mutex mutex;
 	struct regmap *regmap;
 	struct iio_trigger *dready_trig;
-	__be16 buffer[8];
+	/* Ensure timestamp is naturally aligned */
+	struct {
+		__be16 chans[3];
+		s64 timestamp __aligned(8);
+	} scan;
 	bool trigger_enabled;
 };
 

@@ -135,7 +139,7 @@ static int mxc4005_read_xyz(struct mxc4005_data *data)
 	int ret;
 
 	ret = regmap_bulk_read(data->regmap, MXC4005_REG_XOUT_UPPER,
-			       (u8 *) data->buffer, sizeof(data->buffer));
+			       data->scan.chans, sizeof(data->scan.chans));
 	if (ret < 0) {
 		dev_err(data->dev, "failed to read axes\n");
 		return ret;

@@ -150,7 +154,7 @@ static int mxc4005_read_axis(struct mxc4005_data *data,
 	__be16 reg;
 	int ret;
 
-	ret = regmap_bulk_read(data->regmap, addr, (u8 *) &reg, sizeof(reg));
+	ret = regmap_bulk_read(data->regmap, addr, &reg, sizeof(reg));
 	if (ret < 0) {
 		dev_err(data->dev, "failed to read reg %02x\n", addr);
 		return ret;

@@ -301,7 +305,7 @@ static irqreturn_t mxc4005_trigger_handler(int irq, void *private)
 	if (ret < 0)
 		goto err;
 
-	iio_push_to_buffers_with_timestamp(indio_dev, data->buffer,
+	iio_push_to_buffers_with_timestamp(indio_dev, &data->scan,
 					   pf->timestamp);
 
 err:

index 58c160ccdee7..be66b8523977 100644
@@ -103,7 +103,11 @@ struct stk8312_data {
 	u8 mode;
 	struct iio_trigger *dready_trig;
 	bool dready_trigger_on;
-	s8 buffer[16]; /* 3x8-bit channels + 5x8 padding + 64-bit timestamp */
+	/* Ensure timestamp is naturally aligned */
+	struct {
+		s8 chans[3];
+		s64 timestamp __aligned(8);
+	} scan;
 };
 
 static IIO_CONST_ATTR(in_accel_scale_available, STK8312_SCALE_AVAIL);

@@ -438,7 +442,7 @@ static irqreturn_t stk8312_trigger_handler(int irq, void *p)
 		ret = i2c_smbus_read_i2c_block_data(data->client,
 						    STK8312_REG_XOUT,
 						    STK8312_ALL_CHANNEL_SIZE,
-						    data->buffer);
+						    data->scan.chans);
 		if (ret < STK8312_ALL_CHANNEL_SIZE) {
 			dev_err(&data->client->dev, "register read failed\n");
 			mutex_unlock(&data->lock);

@@ -452,12 +456,12 @@ static irqreturn_t stk8312_trigger_handler(int irq, void *p)
 				mutex_unlock(&data->lock);
 				goto err;
 			}
-			data->buffer[i++] = ret;
+			data->scan.chans[i++] = ret;
 		}
 	}
 	mutex_unlock(&data->lock);
 
-	iio_push_to_buffers_with_timestamp(indio_dev, data->buffer,
+	iio_push_to_buffers_with_timestamp(indio_dev, &data->scan,
 					   pf->timestamp);
 err:
 	iio_trigger_notify_done(indio_dev->trig);

index c70ddec29eb4..edba3c13a979 100644
@@ -91,12 +91,11 @@ struct stk8ba50_data {
 	u8 sample_rate_idx;
 	struct iio_trigger *dready_trig;
 	bool dready_trigger_on;
-	/*
-	 * 3 x 16-bit channels (10-bit data, 6-bit padding) +
-	 * 1 x 16 padding +
-	 * 4 x 16 64-bit timestamp
-	 */
-	s16 buffer[8];
+	/* Ensure timestamp is naturally aligned */
+	struct {
+		s16 chans[3];
+		s64 timetamp __aligned(8);
+	} scan;
 };
 
 #define STK8BA50_ACCEL_CHANNEL(index, reg, axis) {			\

@@ -324,7 +323,7 @@ static irqreturn_t stk8ba50_trigger_handler(int irq, void *p)
 		ret = i2c_smbus_read_i2c_block_data(data->client,
 						    STK8BA50_REG_XOUT,
 						    STK8BA50_ALL_CHANNEL_SIZE,
-						    (u8 *)data->buffer);
+						    (u8 *)data->scan.chans);
 		if (ret < STK8BA50_ALL_CHANNEL_SIZE) {
 			dev_err(&data->client->dev, "register read failed\n");
 			goto err;

@@ -337,10 +336,10 @@ static irqreturn_t stk8ba50_trigger_handler(int irq, void *p)
 			if (ret < 0)
 				goto err;
 
-			data->buffer[i++] = ret;
+			data->scan.chans[i++] = ret;
 		}
 	}
-	iio_push_to_buffers_with_timestamp(indio_dev, data->buffer,
+	iio_push_to_buffers_with_timestamp(indio_dev, &data->scan,
 					   pf->timestamp);
 err:
 	mutex_unlock(&data->lock);

index 2c01963a6a5c..def4abeb47ca 100644
@@ -399,7 +399,9 @@ struct at91_adc_state {
 	wait_queue_head_t		wq_data_available;
 	struct at91_adc_dma		dma_st;
 	struct at91_adc_touch		touch_st;
-	u16				buffer[AT91_BUFFER_MAX_HWORDS];
+	struct iio_dev			*indio_dev;
+	/* Ensure naturally aligned timestamp */
+	u16				buffer[AT91_BUFFER_MAX_HWORDS] __aligned(8);
 	/*
 	 * lock to prevent concurrent 'single conversion' requests through
 	 * sysfs.

@@ -624,13 +626,13 @@ static u16 at91_adc_touch_pos(struct at91_adc_state *st, int reg)
 	/* first half of register is the x or y, second half is the scale */
 	val = at91_adc_readl(st, reg);
 	if (!val)
-		dev_dbg(&iio_priv_to_dev(st)->dev, "pos is 0\n");
+		dev_dbg(&st->indio_dev->dev, "pos is 0\n");
 
 	pos = val & AT91_SAMA5D2_XYZ_MASK;
 	result = (pos << AT91_SAMA5D2_MAX_POS_BITS) - pos;
 	scale = (val >> 16) & AT91_SAMA5D2_XYZ_MASK;
 	if (scale == 0) {
-		dev_err(&iio_priv_to_dev(st)->dev, "scale is 0\n");
+		dev_err(&st->indio_dev->dev, "scale is 0\n");
 		return 0;
 	}
 	result /= scale;

@@ -1154,9 +1156,9 @@ static unsigned at91_adc_startup_time(unsigned startup_time_min,
 	return i;
 }
 
-static void at91_adc_setup_samp_freq(struct at91_adc_state *st, unsigned freq)
+static void at91_adc_setup_samp_freq(struct iio_dev *indio_dev, unsigned freq)
 {
-	struct iio_dev *indio_dev = iio_priv_to_dev(st);
+	struct at91_adc_state *st = iio_priv(indio_dev);
 	unsigned f_per, prescal, startup, mr;
 
 	f_per = clk_get_rate(st->per_clk);

@@ -1225,9 +1227,9 @@ static void at91_adc_pen_detect_interrupt(struct at91_adc_state *st)
 	st->touch_st.touching = true;
 }
 
-static void at91_adc_no_pen_detect_interrupt(struct at91_adc_state *st)
+static void at91_adc_no_pen_detect_interrupt(struct iio_dev *indio_dev)
 {
-	struct iio_dev *indio_dev = iio_priv_to_dev(st);
+	struct at91_adc_state *st = iio_priv(indio_dev);
 
 	at91_adc_writel(st, AT91_SAMA5D2_TRGR,
 			AT91_SAMA5D2_TRGR_TRGMOD_NO_TRIGGER);

@@ -1247,7 +1249,7 @@ static void at91_adc_workq_handler(struct work_struct *workq)
 					struct at91_adc_touch, workq);
 	struct at91_adc_state *st = container_of(touch_st,
 					struct at91_adc_state, touch_st);
-	struct iio_dev *indio_dev = iio_priv_to_dev(st);
+	struct iio_dev *indio_dev = st->indio_dev;
 
 	iio_push_to_buffers(indio_dev, st->buffer);
 }

@@ -1268,7 +1270,7 @@ static irqreturn_t at91_adc_interrupt(int irq, void *private)
 		at91_adc_pen_detect_interrupt(st);
 	} else if ((status & AT91_SAMA5D2_IER_NOPEN)) {
 		/* nopen detected IRQ */
-		at91_adc_no_pen_detect_interrupt(st);
+		at91_adc_no_pen_detect_interrupt(indio);
 	} else if ((status & AT91_SAMA5D2_ISR_PENS) &&
 		   ((status & rdy_mask) == rdy_mask)) {
 		/* periodic trigger IRQ - during pen sense */

@@ -1435,7 +1437,7 @@ static int at91_adc_write_raw(struct iio_dev *indio_dev,
 		    val > st->soc_info.max_sample_rate)
 			return -EINVAL;
 
-		at91_adc_setup_samp_freq(st, val);
+		at91_adc_setup_samp_freq(indio_dev, val);
 		return 0;
 	default:
 		return -EINVAL;

@@ -1573,8 +1575,10 @@ static int at91_adc_update_scan_mode(struct iio_dev *indio_dev,
 	return 0;
 }
 
-static void at91_adc_hw_init(struct at91_adc_state *st)
+static void at91_adc_hw_init(struct iio_dev *indio_dev)
 {
+	struct at91_adc_state *st = iio_priv(indio_dev);
+
 	at91_adc_writel(st, AT91_SAMA5D2_CR, AT91_SAMA5D2_CR_SWRST);
 	at91_adc_writel(st, AT91_SAMA5D2_IDR, 0xffffffff);
 	/*

@@ -1584,7 +1588,7 @@ static void at91_adc_hw_init(struct at91_adc_state *st)
 	at91_adc_writel(st, AT91_SAMA5D2_MR,
 			AT91_SAMA5D2_MR_TRANSFER(2) | AT91_SAMA5D2_MR_ANACH);
 
-	at91_adc_setup_samp_freq(st, st->soc_info.min_sample_rate);
+	at91_adc_setup_samp_freq(indio_dev, st->soc_info.min_sample_rate);
 
 	/* configure extended mode register */
 	at91_adc_config_emr(st);

@@ -1667,6 +1671,7 @@ static int at91_adc_probe(struct platform_device *pdev)
 	indio_dev->num_channels = ARRAY_SIZE(at91_adc_channels);
 
 	st = iio_priv(indio_dev);
+	st->indio_dev = indio_dev;
 
 	bitmap_set(&st->touch_st.channels_bitmask,
 		   AT91_SAMA5D2_TOUCH_X_CHAN_IDX, 1);

@@ -1778,7 +1783,7 @@ static int at91_adc_probe(struct platform_device *pdev)
 		goto vref_disable;
 	}
 
-	at91_adc_hw_init(st);
+	at91_adc_hw_init(indio_dev);
 
 	ret = clk_prepare_enable(st->per_clk);
 	if (ret)

@@ -1894,7 +1899,7 @@ static __maybe_unused int at91_adc_resume(struct device *dev)
 	if (ret)
 		goto vref_disable_resume;
 
-	at91_adc_hw_init(st);
+	at91_adc_hw_init(indio_dev);
 
 	/* reconfiguring trigger hardware state */
 	if (!iio_buffer_enabled(indio_dev))

index 62e6c8badd22..a3265166fd83 100644
@@ -85,9 +85,9 @@ struct hx711_data {
 	struct mutex		lock;
 	/*
 	 * triggered buffer
-	 * 2x32-bit channel + 64-bit timestamp
+	 * 2x32-bit channel + 64-bit naturally aligned timestamp
 	 */
-	u32			buffer[4];
+	u32			buffer[4] __aligned(8);
 	/*
 	 * delay after a rising edge on SCK until the data is ready DOUT
 	 * this is dependent on the hx711 where the datasheet tells a

index 9d2f74c2489a..01f85bbe6a2e 100644
@@ -115,7 +115,8 @@ struct mxs_lradc_adc {
 	struct device		*dev;
 
 	void __iomem		*base;
-	u32			buffer[10];
+	/* Maximum of 8 channels + 8 byte ts */
+	u32			buffer[10] __aligned(8);
 	struct iio_trigger	*trig;
 	struct completion	completion;
 	spinlock_t		lock;

index 871690a47661..7929891f568e 100644
@@ -388,10 +388,14 @@ static irqreturn_t ads1015_trigger_handler(int irq, void *p)
 	struct iio_poll_func *pf = p;
 	struct iio_dev *indio_dev = pf->indio_dev;
 	struct ads1015_data *data = iio_priv(indio_dev);
-	s16 buf[8]; /* 1x s16 ADC val + 3x s16 padding +  4x s16 timestamp */
+	/* Ensure natural alignment of timestamp */
+	struct {
+		s16 chan;
+		s64 timestamp __aligned(8);
+	} scan;
 	int chan, ret, res;
 
-	memset(buf, 0, sizeof(buf));
+	memset(&scan, 0, sizeof(scan));
 
 	mutex_lock(&data->lock);
 	chan = find_first_bit(indio_dev->active_scan_mask,

@@ -402,10 +406,10 @@ static irqreturn_t ads1015_trigger_handler(int irq, void *p)
 		goto err;
 	}
 
-	buf[0] = res;
+	scan.chan = res;
 	mutex_unlock(&data->lock);
 
-	iio_push_to_buffers_with_timestamp(indio_dev, buf,
+	iio_push_to_buffers_with_timestamp(indio_dev, &scan,
 					   iio_get_time_ns(indio_dev));
 
 err:

index 14fe7c320b52..55a2d619d6dd 100644
@@ -383,7 +383,8 @@ static irqreturn_t ads8688_trigger_handler(int irq, void *p)
 {
 	struct iio_poll_func *pf = p;
 	struct iio_dev *indio_dev = pf->indio_dev;
-	u16 buffer[ADS8688_MAX_CHANNELS + sizeof(s64)/sizeof(u16)];
+	/* Ensure naturally aligned timestamp */
+	u16 buffer[ADS8688_MAX_CHANNELS + sizeof(s64)/sizeof(u16)] __aligned(8);
 	int i, j = 0;
 
 	for (i = 0; i < indio_dev->masklength; i++) {

index 98b30475bbc6..0d29fe974d70 100644
@@ -167,7 +167,11 @@ struct vf610_adc {
 	u32 sample_freq_avail[5];
 
 	struct completion completion;
-	u16 buffer[8];
+	/* Ensure the timestamp is naturally aligned */
+	struct {
+		u16 chan;
+		s64 timestamp __aligned(8);
+	} scan;
 };
 
 static const u32 vf610_hw_avgs[] = { 1, 4, 8, 16, 32 };

@@ -579,9 +583,9 @@ static irqreturn_t vf610_adc_isr(int irq, void *dev_id)
 	if (coco & VF610_ADC_HS_COCO0) {
 		info->value = vf610_adc_read_data(info);
 		if (iio_buffer_enabled(indio_dev)) {
-			info->buffer[0] = info->value;
+			info->scan.chan = info->value;
 			iio_push_to_buffers_with_timestamp(indio_dev,
-					info->buffer,
+					&info->scan,
 					iio_get_time_ns(indio_dev));
 			iio_trigger_notify_done(indio_dev->trig);
 		} else

index 428ddfc13acb..276bed47e8d6 100644
@@ -96,7 +96,11 @@ struct bmg160_data {
 	struct iio_trigger *motion_trig;
 	struct iio_mount_matrix orientation;
 	struct mutex mutex;
-	s16 buffer[8];
+	/* Ensure naturally aligned timestamp */
+	struct {
+		s16 chans[3];
+		s64 timestamp __aligned(8);
+	} scan;
 	u32 dps_range;
 	int ev_enable_state;
 	int slope_thres;

@@ -880,12 +884,12 @@ static irqreturn_t bmg160_trigger_handler(int irq, void *p)
 
 	mutex_lock(&data->mutex);
 	ret = regmap_bulk_read(data->regmap, BMG160_REG_XOUT_L,
-			       data->buffer, AXIS_MAX * 2);
+			       data->scan.chans, AXIS_MAX * 2);
 	mutex_unlock(&data->mutex);
 	if (ret < 0)
 		goto err;
 
-	iio_push_to_buffers_with_timestamp(indio_dev, data->buffer,
+	iio_push_to_buffers_with_timestamp(indio_dev, &data->scan,
 					   pf->timestamp);
 err:
 	iio_trigger_notify_done(indio_dev->trig);

index 3bac98e731d9..894922a315fe 100644
@@ -33,7 +33,11 @@
 struct am2315_data {
 	struct i2c_client *client;
 	struct mutex lock;
-	s16 buffer[8]; /* 2x16-bit channels + 2x16 padding + 4x16 timestamp */
+	/* Ensure timestamp is naturally aligned */
+	struct {
+		s16 chans[2];
+		s64 timestamp __aligned(8);
+	} scan;
 };
 
 struct am2315_sensor_data {

@@ -167,20 +171,20 @@ static irqreturn_t am2315_trigger_handler(int irq, void *p)
 
 	mutex_lock(&data->lock);
 	if (*(indio_dev->active_scan_mask) == AM2315_ALL_CHANNEL_MASK) {
-		data->buffer[0] = sensor_data.hum_data;
-		data->buffer[1] = sensor_data.temp_data;
+		data->scan.chans[0] = sensor_data.hum_data;
+		data->scan.chans[1] = sensor_data.temp_data;
 	} else {
 		i = 0;
 		for_each_set_bit(bit, indio_dev->active_scan_mask,
 				 indio_dev->masklength) {
-			data->buffer[i] = (bit ? sensor_data.temp_data :
-						 sensor_data.hum_data);
+			data->scan.chans[i] = (bit ? sensor_data.temp_data :
+					       sensor_data.hum_data);
 			i++;
 		}
 	}
 	mutex_unlock(&data->lock);
 
-	iio_push_to_buffers_with_timestamp(indio_dev, data->buffer,
+	iio_push_to_buffers_with_timestamp(indio_dev, &data->scan,
 					   pf->timestamp);
 err:
 	iio_trigger_notify_done(indio_dev->trig);

index 59e33302042c..afa9d26362da 100644
@@ -651,9 +651,6 @@ static irqreturn_t adis16400_trigger_handler(int irq, void *p)
 	void *buffer;
 	int ret;
 
-	if (!adis->buffer)
-		return -ENOMEM;
-
 	if (!(st->variant->flags & ADIS16400_NO_BURST) &&
 		st->adis.spi->max_speed_hz > ADIS16400_SPI_BURST) {
 		st->adis.spi->max_speed_hz = ADIS16400_SPI_BURST;

index 4998a89d083d..8f8c1a87567b 100644
@@ -125,9 +125,6 @@ static irqreturn_t adis_trigger_handler(int irq, void *p)
 	struct adis *adis = iio_device_get_drvdata(indio_dev);
 	int ret;
 
-	if (!adis->buffer)
-		return -ENOMEM;
-
 	if (adis->data->has_paging) {
 		mutex_lock(&adis->txrx_lock);
 		if (adis->current_page != 0) {

index e37894f0ae0b..15906925e588 100644
@@ -51,7 +51,11 @@
 struct isl29125_data {
 	struct i2c_client *client;
 	u8 conf1;
-	u16 buffer[8]; /* 3x 16-bit, padding, 8 bytes timestamp */
+	/* Ensure timestamp is naturally aligned */
+	struct {
+		u16 chans[3];
+		s64 timestamp __aligned(8);
+	} scan;
 };
 
 #define ISL29125_CHANNEL(_color, _si) { \

@@ -184,10 +188,10 @@ static irqreturn_t isl29125_trigger_handler(int irq, void *p)
 		if (ret < 0)
 			goto done;
 
-		data->buffer[j++] = ret;
+		data->scan.chans[j++] = ret;
 	}
 
-	iio_push_to_buffers_with_timestamp(indio_dev, data->buffer,
+	iio_push_to_buffers_with_timestamp(indio_dev, &data->scan,
 		iio_get_time_ns(indio_dev));
 
 done:

index ceddb6a3b61b..8bc01e8a424b 100644
@@ -32,9 +32,12 @@
 #define LTR501_PART_ID 0x86
 #define LTR501_MANUFAC_ID 0x87
 #define LTR501_ALS_DATA1 0x88 /* 16-bit, little endian */
+#define LTR501_ALS_DATA1_UPPER 0x89 /* upper 8 bits of LTR501_ALS_DATA1 */
 #define LTR501_ALS_DATA0 0x8a /* 16-bit, little endian */
+#define LTR501_ALS_DATA0_UPPER 0x8b /* upper 8 bits of LTR501_ALS_DATA0 */
 #define LTR501_ALS_PS_STATUS 0x8c
 #define LTR501_PS_DATA 0x8d /* 16-bit, little endian */
+#define LTR501_PS_DATA_UPPER 0x8e /* upper 8 bits of LTR501_PS_DATA */
 #define LTR501_INTR 0x8f /* output mode, polarity, mode */
 #define LTR501_PS_THRESH_UP 0x90 /* 11 bit, ps upper threshold */
 #define LTR501_PS_THRESH_LOW 0x92 /* 11 bit, ps lower threshold */

@@ -405,18 +408,19 @@ static int ltr501_read_als(struct ltr501_data *data, __le16 buf[2])
 
 static int ltr501_read_ps(struct ltr501_data *data)
 {
-	int ret, status;
+	__le16 status;
+	int ret;
 
 	ret = ltr501_drdy(data, LTR501_STATUS_PS_RDY);
 	if (ret < 0)
 		return ret;
 
 	ret = regmap_bulk_read(data->regmap, LTR501_PS_DATA,
-			       &status, 2);
+			       &status, sizeof(status));
 	if (ret < 0)
 		return ret;
 
-	return status;
+	return le16_to_cpu(status);
 }
 
 static int ltr501_read_intr_prst(struct ltr501_data *data,

@@ -1204,7 +1208,7 @@ static struct ltr501_chip_info ltr501_chip_info_tbl[] = {
 		.als_gain_tbl_size = ARRAY_SIZE(ltr559_als_gain_tbl),
 		.ps_gain = ltr559_ps_gain_tbl,
 		.ps_gain_tbl_size = ARRAY_SIZE(ltr559_ps_gain_tbl),
-		.als_mode_active = BIT(1),
+		.als_mode_active = BIT(0),
 		.als_gain_mask = BIT(2) | BIT(3) | BIT(4),
 		.als_gain_shift = 2,
 		.info = &ltr501_info,

@@ -1353,9 +1357,12 @@ static bool ltr501_is_volatile_reg(struct device *dev, unsigned int reg)
 {
 	switch (reg) {
 	case LTR501_ALS_DATA1:
+	case LTR501_ALS_DATA1_UPPER:
 	case LTR501_ALS_DATA0:
+	case LTR501_ALS_DATA0_UPPER:
 	case LTR501_ALS_PS_STATUS:
 	case LTR501_PS_DATA:
+	case LTR501_PS_DATA_UPPER:
 		return true;
 	default:
 		return false;

index 7c0291c5fe76..85bfe3b63f4f 100644
@@ -53,7 +53,11 @@ struct tcs3414_data {
 	u8 control;
 	u8 gain;
 	u8 timing;
-	u16 buffer[8]; /* 4x 16-bit + 8 bytes timestamp */
+	/* Ensure timestamp is naturally aligned */
+	struct {
+		u16 chans[4];
+		s64 timestamp __aligned(8);
+	} scan;
 };
 
 #define TCS3414_CHANNEL(_color, _si, _addr) { \

@@ -209,10 +213,10 @@ static irqreturn_t tcs3414_trigger_handler(int irq, void *p)
 		if (ret < 0)
 			goto done;
 
-		data->buffer[j++] = ret;
+		data->scan.chans[j++] = ret;
 	}
 
-	iio_push_to_buffers_with_timestamp(indio_dev, data->buffer,
+	iio_push_to_buffers_with_timestamp(indio_dev, &data->scan,
 		iio_get_time_ns(indio_dev));
 
 done:

index 12ad34441010..9ea543c5cf5e 100644
@@ -64,7 +64,11 @@ struct tcs3472_data {
 	u8 control;
 	u8 atime;
 	u8 apers;
-	u16 buffer[8]; /* 4 16-bit channels + 64-bit timestamp */
+	/* Ensure timestamp is naturally aligned */
+	struct {
+		u16 chans[4];
+		s64 timestamp __aligned(8);
+	} scan;
 };
 
 static const struct iio_event_spec tcs3472_events[] = {

@@ -386,10 +390,10 @@ static irqreturn_t tcs3472_trigger_handler(int irq, void *p)
 		if (ret < 0)
 			goto done;
 
-		data->buffer[j++] = ret;
+		data->scan.chans[j++] = ret;
 	}
 
-	iio_push_to_buffers_with_timestamp(indio_dev, data->buffer,
+	iio_push_to_buffers_with_timestamp(indio_dev, &data->scan,
 		iio_get_time_ns(indio_dev));
 
 done:

@@ -532,7 +536,8 @@ static int tcs3472_probe(struct i2c_client *client,
 	return 0;
 
 free_irq:
-	free_irq(client->irq, indio_dev);
+	if (client->irq)
+		free_irq(client->irq, indio_dev);
 buffer_cleanup:
 	iio_triggered_buffer_cleanup(indio_dev);
 	return ret;

@@ -560,7 +565,8 @@ static int tcs3472_remove(struct i2c_client *client)
 	struct iio_dev *indio_dev = i2c_get_clientdata(client);
 
 	iio_device_unregister(indio_dev);
-	free_irq(client->irq, indio_dev);
+	if (client->irq)
+		free_irq(client->irq, indio_dev);
 	iio_triggered_buffer_cleanup(indio_dev);
 	tcs3472_powerdown(iio_priv(indio_dev));
 

index cca4db312bd3..234623ab3817 100644
@@ -102,7 +102,8 @@ static irqreturn_t vcnl4035_trigger_consumer_handler(int irq, void *p)
 	struct iio_poll_func *pf = p;
 	struct iio_dev *indio_dev = pf->indio_dev;
 	struct vcnl4035_data *data = iio_priv(indio_dev);
-	u8 buffer[ALIGN(sizeof(u16), sizeof(s64)) + sizeof(s64)];
+	/* Ensure naturally aligned timestamp */
+	u8 buffer[ALIGN(sizeof(u16), sizeof(s64)) + sizeof(s64)]  __aligned(8);
 	int ret;
 
 	ret = regmap_read(data->regmap, VCNL4035_ALS_DATA, (int *)buffer);

index d4de16750b10..48685d785c1b 100644
@@ -136,8 +136,11 @@ struct bmc150_magn_data {
 	struct mutex mutex;
 	struct regmap *regmap;
 	struct iio_mount_matrix orientation;
-	/* 4 x 32 bits for x, y z, 4 bytes align, 64 bits timestamp */
-	s32 buffer[6];
+	/* Ensure timestamp is naturally aligned */
+	struct {
+		s32 chans[3];
+		s64 timestamp __aligned(8);
+	} scan;
 	struct iio_trigger *dready_trig;
 	bool dready_trigger_on;
 	int max_odr;

@@ -673,11 +676,11 @@ static irqreturn_t bmc150_magn_trigger_handler(int irq, void *p)
 	int ret;
 
 	mutex_lock(&data->mutex);
-	ret = bmc150_magn_read_xyz(data, data->buffer);
+	ret = bmc150_magn_read_xyz(data, data->scan.chans);
 	if (ret < 0)
 		goto err;
 
-	iio_push_to_buffers_with_timestamp(indio_dev, data->buffer,
+	iio_push_to_buffers_with_timestamp(indio_dev, &data->scan,
 					   pf->timestamp);
 
 err:

index b0dee87a8b20..b68bb55909e1 100644
@@ -33,7 +33,8 @@ enum hmc5843_ids {
  * @lock:		update and read regmap data
  * @regmap:		hardware access register maps
  * @variant:		describe chip variants
- * @buffer:		3x 16-bit channels + padding + 64-bit timestamp
+ * @scan:		buffer to pack data for passing to
+ *			iio_push_to_buffers_with_timestamp()
  */
 struct hmc5843_data {
 	struct device *dev;

@@ -41,7 +42,10 @@ struct hmc5843_data {
 	struct regmap *regmap;
 	const struct hmc5843_chip_info *variant;
 	struct iio_mount_matrix orientation;
-	__be16 buffer[8];
+	struct {
+		__be16 chans[3];
+		s64 timestamp __aligned(8);
+	} scan;
 };
 
 int hmc5843_common_probe(struct device *dev, struct regmap *regmap,

index c44a4292da92..aef78275260f 100644
@@ -446,13 +446,13 @@ static irqreturn_t hmc5843_trigger_handler(int irq, void *p)
 	}
 
 	ret = regmap_bulk_read(data->regmap, HMC5843_DATA_OUT_MSB_REGS,
-			       data->buffer, 3 * sizeof(__be16));
+			       data->scan.chans, sizeof(data->scan.chans));
 
 	mutex_unlock(&data->lock);
 	if (ret < 0)
 		goto done;
 
-	iio_push_to_buffers_with_timestamp(indio_dev, data->buffer,
+	iio_push_to_buffers_with_timestamp(indio_dev, &data->scan,
 					   iio_get_time_ns(indio_dev));
 
 done:

index 7c20918d8108..f31ff225fe61 100644
@@ -76,7 +76,8 @@ struct rm3100_data {
 	bool use_interrupt;
 	int conversion_time;
 	int scale;
-	u8 buffer[RM3100_SCAN_BYTES];
+	/* Ensure naturally aligned timestamp */
+	u8 buffer[RM3100_SCAN_BYTES] __aligned(8);
 	struct iio_trigger *drdy_trig;
 
 	/*

index a0e5f530faa9..d6db07264a7b 100644
@@ -71,8 +71,8 @@ struct lmp91000_data {
 
 	struct completion completion;
 	u8 chan_select;
-
-	u32 buffer[4]; /* 64-bit data + 64-bit timestamp */
+	/* 64-bit data + 64-bit naturally aligned timestamp */
+	u32 buffer[4] __aligned(8);
 };
 
 static const struct iio_chan_spec lmp91000_channels[] = {

index b591c63bd6c4..718150a93133 100644
@@ -61,7 +61,11 @@ struct as3935_state {
 	unsigned long noise_tripped;
 	u32 tune_cap;
 	u32 nflwdth_reg;
-	u8 buffer[16]; /* 8-bit data + 56-bit padding + 64-bit timestamp */
+	/* Ensure timestamp is naturally aligned */
+	struct {
+		u8 chan;
+		s64 timestamp __aligned(8);
+	} scan;
 	u8 buf[2] ____cacheline_aligned;
 };
 

@@ -227,8 +231,8 @@ static irqreturn_t as3935_trigger_handler(int irq, void *private)
 	if (ret)
 		goto err_read;
 
-	st->buffer[0] = val & AS3935_DATA_MASK;
-	iio_push_to_buffers_with_timestamp(indio_dev, &st->buffer,
+	st->scan.chan = val & AS3935_DATA_MASK;
+	iio_push_to_buffers_with_timestamp(indio_dev, &st->scan,
 					   iio_get_time_ns(indio_dev));
 err_read:
 	iio_trigger_notify_done(indio_dev->trig);

index 5ae549075b27..56d6e9f927f4 100644
@@ -938,7 +938,7 @@ static irqreturn_t isl29501_trigger_handler(int irq, void *p)
 	struct iio_dev *indio_dev = pf->indio_dev;
 	struct isl29501_private *isl29501 = iio_priv(indio_dev);
 	const unsigned long *active_mask = indio_dev->active_scan_mask;
-	u32 buffer[4] = {}; /* 1x16-bit + ts */
+	u32 buffer[4] __aligned(8) = {}; /* 1x16-bit + naturally aligned ts */
 
 	if (test_bit(ISL29501_DISTANCE_SCAN_INDEX, active_mask))
 		isl29501_register_read(isl29501, REG_DISTANCE, buffer);

index 67f85268b63d..0c7617022407 100644
@@ -43,7 +43,11 @@ struct lidar_data {
 	int (*xfer)(struct lidar_data *data, u8 reg, u8 *val, int len);
 	int i2c_enabled;
 
-	u16 buffer[8]; /* 2 byte distance + 8 byte timestamp */
+	/* Ensure timestamp is naturally aligned */
+	struct {
+		u16 chan;
+		s64 timestamp __aligned(8);
+	} scan;
 };
 
 static const struct iio_chan_spec lidar_channels[] = {

@@ -228,9 +232,9 @@ static irqreturn_t lidar_trigger_handler(int irq, void *private)
 	struct lidar_data *data = iio_priv(indio_dev);
 	int ret;
 
-	ret = lidar_get_measurement(data, data->buffer);
+	ret = lidar_get_measurement(data, &data->scan.chan);
 	if (!ret) {
-		iio_push_to_buffers_with_timestamp(indio_dev, data->buffer,
+		iio_push_to_buffers_with_timestamp(indio_dev, &data->scan,
 						   iio_get_time_ns(indio_dev));
 	} else if (ret != -EINVAL) {
 		dev_err(&data->client->dev, "cannot read LIDAR measurement");

index b23ce446b7be..c99bc514c5e1 100644
@@ -63,11 +63,11 @@ struct srf08_data {
 	int			range_mm;
 	struct mutex		lock;
 
-	/*
-	 * triggered buffer
-	 * 1x16-bit channel + 3x16 padding + 4x16 timestamp
-	 */
-	s16			buffer[8];
+	/* Ensure timestamp is naturally aligned */
+	struct {
+		s16 chan;
+		s64 timestamp __aligned(8);
+	} scan;
 
 	/* Sensor-Type */
 	enum srf08_sensor_type	sensor_type;

@@ -190,9 +190,9 @@ static irqreturn_t srf08_trigger_handler(int irq, void *p)
 
 	mutex_lock(&data->lock);
 
-	data->buffer[0] = sensor_data;
+	data->scan.chan = sensor_data;
 	iio_push_to_buffers_with_timestamp(indio_dev,
-						data->buffer, pf->timestamp);
+					   &data->scan, pf->timestamp);
 
 	mutex_unlock(&data->lock);
 err:

index c398d1a64614..d413dafb9211 100644
@@ -3031,12 +3031,29 @@ static int ib_uverbs_ex_modify_wq(struct uverbs_attr_bundle *attrs)
 	if (!wq)
 		return -EINVAL;
 
-	wq_attr.curr_wq_state = cmd.curr_wq_state;
-	wq_attr.wq_state = cmd.wq_state;
 	if (cmd.attr_mask & IB_WQ_FLAGS) {
 		wq_attr.flags = cmd.flags;
 		wq_attr.flags_mask = cmd.flags_mask;
 	}
+
+	if (cmd.attr_mask & IB_WQ_CUR_STATE) {
+		if (cmd.curr_wq_state > IB_WQS_ERR)
+			return -EINVAL;
+
+		wq_attr.curr_wq_state = cmd.curr_wq_state;
+	} else {
+		wq_attr.curr_wq_state = wq->state;
+	}
+
+	if (cmd.attr_mask & IB_WQ_STATE) {
+		if (cmd.wq_state > IB_WQS_ERR)
+			return -EINVAL;
+
+		wq_attr.wq_state = cmd.wq_state;
+	} else {
+		wq_attr.wq_state = wq_attr.curr_wq_state;
+	}
+
 	ret = wq->device->ops.modify_wq(wq, &wq_attr, cmd.attr_mask,
 					&attrs->driver_udata);
 	uobj_put_obj_read(wq);

index 6e2b3e2f83f1..17ce928e41bd 100644
@@ -4294,13 +4294,8 @@ int mlx4_ib_modify_wq(struct ib_wq *ibwq, struct ib_wq_attr *wq_attr,
 	if (wq_attr_mask & IB_WQ_FLAGS)
 		return -EOPNOTSUPP;
 
-	cur_state = wq_attr_mask & IB_WQ_CUR_STATE ? wq_attr->curr_wq_state :
-						     ibwq->state;
-	new_state = wq_attr_mask & IB_WQ_STATE ? wq_attr->wq_state : cur_state;
-
-	if (cur_state  < IB_WQS_RESET || cur_state  > IB_WQS_ERR ||
-	    new_state < IB_WQS_RESET || new_state > IB_WQS_ERR)
-		return -EINVAL;
+	cur_state = wq_attr->curr_wq_state;
+	new_state = wq_attr->wq_state;
 
 	if ((new_state == IB_WQS_RDY) && (cur_state == IB_WQS_ERR))
 		return -EINVAL;

index a173737cb022..9025086a8932 100644
@@ -5871,8 +5871,6 @@ static void mlx5_ib_unbind_slave_port(struct mlx5_ib_dev *ibdev,
 
 	port->mp.mpi = NULL;
 
-	list_add_tail(&mpi->list, &mlx5_ib_unaffiliated_port_list);
-
 	spin_unlock(&port->mp.mpi_lock);
 
 	err = mlx5_nic_vport_unaffiliate_multiport(mpi->mdev);

@@ -6025,6 +6023,8 @@ static void mlx5_ib_cleanup_multiport_master(struct mlx5_ib_dev *dev)
 				dev->port[i].mp.mpi = NULL;
 			} else {
 				mlx5_ib_dbg(dev, "unbinding port_num: %d\n", i + 1);
+				list_add_tail(&dev->port[i].mp.mpi->list,
+					      &mlx5_ib_unaffiliated_port_list);
 				mlx5_ib_unbind_slave_port(dev, dev->port[i].mp.mpi);
 			}
 		}

index 09e29c6cb66d..4540835e05bd 100644
@@ -6317,10 +6317,8 @@ int mlx5_ib_modify_wq(struct ib_wq *wq, struct ib_wq_attr *wq_attr,
 
 	rqc = MLX5_ADDR_OF(modify_rq_in, in, ctx);
 
-	curr_wq_state = (wq_attr_mask & IB_WQ_CUR_STATE) ?
-		wq_attr->curr_wq_state : wq->state;
-	wq_state = (wq_attr_mask & IB_WQ_STATE) ?
-		wq_attr->wq_state : curr_wq_state;
+	curr_wq_state = wq_attr->curr_wq_state;
+	wq_state = wq_attr->wq_state;
 	if (curr_wq_state == IB_WQS_ERR)
 		curr_wq_state = MLX5_RQC_STATE_ERR;
 	if (wq_state == IB_WQS_ERR)

index d41135682891..7d1df737c655 100644
@@ -251,10 +251,8 @@ static struct socket *rxe_setup_udp_tunnel(struct net *net, __be16 port,
 
 	/* Create UDP socket */
 	err = udp_sock_create(net, &udp_cfg, &sock);
-	if (err < 0) {
-		pr_err("failed to create udp socket. err = %d\n", err);
+	if (err < 0)
 		return ERR_PTR(err);
-	}
 
 	tnl_cfg.encap_type = 1;
 	tnl_cfg.encap_rcv = rxe_udp_encap_recv;

@@ -660,6 +658,12 @@ static int rxe_net_ipv6_init(void)
 
 	recv_sockets.sk6 = rxe_setup_udp_tunnel(&init_net,
 						htons(ROCE_V2_UDP_DPORT), true);
+	if (PTR_ERR(recv_sockets.sk6) == -EAFNOSUPPORT) {
+		recv_sockets.sk6 = NULL;
+		pr_warn("IPv6 is not supported, can not create a UDPv6 socket\n");
+		return 0;
+	}
+
 	if (IS_ERR(recv_sockets.sk6)) {
 		recv_sockets.sk6 = NULL;
 		pr_err("Failed to create IPv6 UDP tunnel\n");

index d427a343c09f..53166b9ae67e 100644
@@ -152,7 +152,6 @@ static void free_rd_atomic_resources(struct rxe_qp *qp)
 void free_rd_atomic_resource(struct rxe_qp *qp, struct resp_res *res)
 {
 	if (res->type == RXE_ATOMIC_MASK) {
-		rxe_drop_ref(qp);
 		kfree_skb(res->atomic.skb);
 	} else if (res->type == RXE_READ_MASK) {
 		if (res->read.mr)

index c4a8195bf670..186152bf7951 100644
@@ -993,8 +993,6 @@ static int send_atomic_ack(struct rxe_qp *qp, struct rxe_pkt_info *pkt,
 		goto out;
 	}
 
-	rxe_add_ref(qp);
-
 	res = &qp->resp.resources[qp->resp.res_head];
 	free_rd_atomic_resource(qp, res);
 	rxe_advance_resp_resource(qp);

index 430dc6975004..675fcd0952a2 100644
@@ -500,7 +500,7 @@ static int joydev_handle_JSIOCSBTNMAP(struct joydev *joydev,
 	memcpy(joydev->keypam, keypam, len);
 
 	for (i = 0; i < joydev->nkey; i++)
-		joydev->keymap[keypam[i] - BTN_MISC] = i;
+		joydev->keymap[joydev->keypam[i] - BTN_MISC] = i;
 
  out:
 	kfree(keypam);

index bb29a7c9a1c0..54afb38601b9 100644
@@ -512,6 +512,7 @@ static int hil_dev_connect(struct serio *serio, struct serio_driver *drv)
 		    HIL_IDD_NUM_AXES_PER_SET(*idd)) {
 			printk(KERN_INFO PREFIX
 				"combo devices are not supported.\n");
+			error = -EINVAL;
 			goto bail1;
 		}
 

index 397cb1d3f481..544a8f40b81f 100644
@@ -251,7 +251,7 @@ static int e2i_init(struct usbtouch_usb *usbtouch)
 	int ret;
 	struct usb_device *udev = interface_to_usbdev(usbtouch->interface);
 
-	ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
+	ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
 	                      0x01, 0x02, 0x0000, 0x0081,
 	                      NULL, 0, USB_CTRL_SET_TIMEOUT);
 

@@ -531,7 +531,7 @@ static int mtouch_init(struct usbtouch_usb *usbtouch)
 	if (ret)
 		return ret;
 
-	ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
+	ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
 	                      MTOUCHUSB_RESET,
 	                      USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 	                      1, 0, NULL, 0, USB_CTRL_SET_TIMEOUT);

@@ -543,7 +543,7 @@ static int mtouch_init(struct usbtouch_usb *usbtouch)
 	msleep(150);
 
 	for (i = 0; i < 3; i++) {
-		ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
+		ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
 				      MTOUCHUSB_ASYNC_REPORT,
 				      USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 				      1, 1, NULL, 0, USB_CTRL_SET_TIMEOUT);

@@ -722,7 +722,7 @@ static int dmc_tsc10_init(struct usbtouch_usb *usbtouch)
 	}
 
 	/* start sending data */
-	ret = usb_control_msg(dev, usb_rcvctrlpipe (dev, 0),
+	ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
 	                      TSC10_CMD_DATA1,
 	                      USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 	                      0, 0, NULL, 0, USB_CTRL_SET_TIMEOUT);

index 76bd2309e023..9c3e630c6c4c 100644
@@ -216,9 +216,11 @@ static int iova_reserve_pci_windows(struct pci_dev *dev,
 			lo = iova_pfn(iovad, start);
 			hi = iova_pfn(iovad, end);
 			reserve_iova(iovad, lo, hi);
-		} else {
+		} else if (end < start) {
 			/* dma_ranges list should be sorted */
-			dev_err(&dev->dev, "Failed to reserve IOVA\n");
+			dev_err(&dev->dev,
+				"Failed to reserve IOVA [%pa-%pa]\n",
+				&start, &end);
 			return -EINVAL;
 		}
 

index b7e0ae1af8fa..1dc6f1b24ddb 100644
@@ -544,6 +544,7 @@ static int as3645a_parse_node(struct as3645a *flash,
 	if (!flash->indicator_node) {
 		dev_warn(&flash->client->dev,
 			 "can't find indicator node\n");
+		rval = -ENODEV;
 		goto out_err;
 	}
 

index 670efee9b131..cd30b3b46e76 100644
@@ -256,6 +256,17 @@ static void ktd2692_setup(struct ktd2692_context *led)
 				 | KTD2692_REG_FLASH_CURRENT_BASE);
 }
 
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