path: root/1031_linux-5.4.32.patch

diff --git a/Makefile b/Makefile
index af28533919cc..c2d5975844d9 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 5
 PATCHLEVEL = 4
-SUBLEVEL = 31
+SUBLEVEL = 32
 EXTRAVERSION =
 NAME = Kleptomaniac Octopus
 
diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
index 593bf1519608..95584ee02b55 100644
--- a/arch/arm/mach-imx/Kconfig
+++ b/arch/arm/mach-imx/Kconfig
@@ -520,6 +520,7 @@ config SOC_IMX6UL
 	bool "i.MX6 UltraLite support"
 	select PINCTRL_IMX6UL
 	select SOC_IMX6
+	select ARM_ERRATA_814220
 
 	help
 	  This enables support for Freescale i.MX6 UltraLite processor.
@@ -556,6 +557,7 @@ config SOC_IMX7D
 	select PINCTRL_IMX7D
 	select SOC_IMX7D_CA7 if ARCH_MULTI_V7
 	select SOC_IMX7D_CM4 if ARM_SINGLE_ARMV7M
+	select ARM_ERRATA_814220 if ARCH_MULTI_V7
 	help
 		This enables support for Freescale i.MX7 Dual processor.
 
diff --git a/arch/s390/include/asm/lowcore.h b/arch/s390/include/asm/lowcore.h
index 237ee0c4169f..612ed3c6d581 100644
--- a/arch/s390/include/asm/lowcore.h
+++ b/arch/s390/include/asm/lowcore.h
@@ -141,7 +141,9 @@ struct lowcore {
 
 	/* br %r1 trampoline */
 	__u16	br_r1_trampoline;		/* 0x0400 */
-	__u8	pad_0x0402[0x0e00-0x0402];	/* 0x0402 */
+	__u32	return_lpswe;			/* 0x0402 */
+	__u32	return_mcck_lpswe;		/* 0x0406 */
+	__u8	pad_0x040a[0x0e00-0x040a];	/* 0x040a */
 
 	/*
 	 * 0xe00 contains the address of the IPL Parameter Information
diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h
index 51a0e4a2dc96..560d8b77b1d1 100644
--- a/arch/s390/include/asm/processor.h
+++ b/arch/s390/include/asm/processor.h
@@ -162,6 +162,7 @@ typedef struct thread_struct thread_struct;
 #define INIT_THREAD {							\
 	.ksp = sizeof(init_stack) + (unsigned long) &init_stack,	\
 	.fpu.regs = (void *) init_task.thread.fpu.fprs,			\
+	.last_break = 1,						\
 }
 
 /*
diff --git a/arch/s390/include/asm/setup.h b/arch/s390/include/asm/setup.h
index 6dc6c4fbc8e2..1932088686a6 100644
--- a/arch/s390/include/asm/setup.h
+++ b/arch/s390/include/asm/setup.h
@@ -8,6 +8,7 @@
 
 #include <linux/bits.h>
 #include <uapi/asm/setup.h>
+#include <linux/build_bug.h>
 
 #define EP_OFFSET		0x10008
 #define EP_STRING		"S390EP"
@@ -157,6 +158,12 @@ static inline unsigned long kaslr_offset(void)
 	return __kaslr_offset;
 }
 
+static inline u32 gen_lpswe(unsigned long addr)
+{
+	BUILD_BUG_ON(addr > 0xfff);
+	return 0xb2b20000 | addr;
+}
+
 #else /* __ASSEMBLY__ */
 
 #define IPL_DEVICE	(IPL_DEVICE_OFFSET)
diff --git a/arch/s390/kernel/asm-offsets.c b/arch/s390/kernel/asm-offsets.c
index 41ac4ad21311..b6628586ab70 100644
--- a/arch/s390/kernel/asm-offsets.c
+++ b/arch/s390/kernel/asm-offsets.c
@@ -125,6 +125,8 @@ int main(void)
 	OFFSET(__LC_EXT_DAMAGE_CODE, lowcore, external_damage_code);
 	OFFSET(__LC_MCCK_FAIL_STOR_ADDR, lowcore, failing_storage_address);
 	OFFSET(__LC_LAST_BREAK, lowcore, breaking_event_addr);
+	OFFSET(__LC_RETURN_LPSWE, lowcore, return_lpswe);
+	OFFSET(__LC_RETURN_MCCK_LPSWE, lowcore, return_mcck_lpswe);
 	OFFSET(__LC_RST_OLD_PSW, lowcore, restart_old_psw);
 	OFFSET(__LC_EXT_OLD_PSW, lowcore, external_old_psw);
 	OFFSET(__LC_SVC_OLD_PSW, lowcore, svc_old_psw);
diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S
index 270d1d145761..bc85987727f0 100644
--- a/arch/s390/kernel/entry.S
+++ b/arch/s390/kernel/entry.S
@@ -115,26 +115,29 @@ _LPP_OFFSET	= __LC_LPP
 
 	.macro	SWITCH_ASYNC savearea,timer
 	tmhh	%r8,0x0001		# interrupting from user ?
-	jnz	1f
+	jnz	2f
 	lgr	%r14,%r9
+	cghi	%r14,__LC_RETURN_LPSWE
+	je	0f
 	slg	%r14,BASED(.Lcritical_start)
 	clg	%r14,BASED(.Lcritical_length)
-	jhe	0f
+	jhe	1f
+0:
 	lghi	%r11,\savearea		# inside critical section, do cleanup
 	brasl	%r14,cleanup_critical
 	tmhh	%r8,0x0001		# retest problem state after cleanup
-	jnz	1f
-0:	lg	%r14,__LC_ASYNC_STACK	# are we already on the target stack?
+	jnz	2f
+1:	lg	%r14,__LC_ASYNC_STACK	# are we already on the target stack?
 	slgr	%r14,%r15
 	srag	%r14,%r14,STACK_SHIFT
-	jnz	2f
+	jnz	3f
 	CHECK_STACK \savearea
 	aghi	%r15,-(STACK_FRAME_OVERHEAD + __PT_SIZE)
-	j	3f
-1:	UPDATE_VTIME %r14,%r15,\timer
+	j	4f
+2:	UPDATE_VTIME %r14,%r15,\timer
 	BPENTER __TI_flags(%r12),_TIF_ISOLATE_BP
-2:	lg	%r15,__LC_ASYNC_STACK	# load async stack
-3:	la	%r11,STACK_FRAME_OVERHEAD(%r15)
+3:	lg	%r15,__LC_ASYNC_STACK	# load async stack
+4:	la	%r11,STACK_FRAME_OVERHEAD(%r15)
 	.endm
 
 	.macro UPDATE_VTIME w1,w2,enter_timer
@@ -401,7 +404,7 @@ ENTRY(system_call)
 	stpt	__LC_EXIT_TIMER
 	mvc	__VDSO_ECTG_BASE(16,%r14),__LC_EXIT_TIMER
 	lmg	%r11,%r15,__PT_R11(%r11)
-	lpswe	__LC_RETURN_PSW
+	b	__LC_RETURN_LPSWE(%r0)
 .Lsysc_done:
 
 #
@@ -608,43 +611,50 @@ ENTRY(pgm_check_handler)
 	BPOFF
 	stmg	%r8,%r15,__LC_SAVE_AREA_SYNC
 	lg	%r10,__LC_LAST_BREAK
-	lg	%r12,__LC_CURRENT
+	srag	%r11,%r10,12
+	jnz	0f
+	/* if __LC_LAST_BREAK is < 4096, it contains one of
+	 * the lpswe addresses in lowcore. Set it to 1 (initial state)
+	 * to prevent leaking that address to userspace.
+	 */
+	lghi	%r10,1
+0:	lg	%r12,__LC_CURRENT
 	lghi	%r11,0
 	larl	%r13,cleanup_critical
 	lmg	%r8,%r9,__LC_PGM_OLD_PSW
 	tmhh	%r8,0x0001		# test problem state bit
-	jnz	2f			# -> fault in user space
+	jnz	3f			# -> fault in user space
 #if IS_ENABLED(CONFIG_KVM)
 	# cleanup critical section for program checks in sie64a
 	lgr	%r14,%r9
 	slg	%r14,BASED(.Lsie_critical_start)
 	clg	%r14,BASED(.Lsie_critical_length)
-	jhe	0f
+	jhe	1f
 	lg	%r14,__SF_SIE_CONTROL(%r15)	# get control block pointer
 	ni	__SIE_PROG0C+3(%r14),0xfe	# no longer in SIE
 	lctlg	%c1,%c1,__LC_USER_ASCE		# load primary asce
 	larl	%r9,sie_exit			# skip forward to sie_exit
 	lghi	%r11,_PIF_GUEST_FAULT
 #endif
-0:	tmhh	%r8,0x4000		# PER bit set in old PSW ?
-	jnz	1f			# -> enabled, can't be a double fault
+1:	tmhh	%r8,0x4000		# PER bit set in old PSW ?
+	jnz	2f			# -> enabled, can't be a double fault
 	tm	__LC_PGM_ILC+3,0x80	# check for per exception
 	jnz	.Lpgm_svcper		# -> single stepped svc
-1:	CHECK_STACK __LC_SAVE_AREA_SYNC
+2:	CHECK_STACK __LC_SAVE_AREA_SYNC
 	aghi	%r15,-(STACK_FRAME_OVERHEAD + __PT_SIZE)
-	# CHECK_VMAP_STACK branches to stack_overflow or 4f
-	CHECK_VMAP_STACK __LC_SAVE_AREA_SYNC,4f
-2:	UPDATE_VTIME %r14,%r15,__LC_SYNC_ENTER_TIMER
+	# CHECK_VMAP_STACK branches to stack_overflow or 5f
+	CHECK_VMAP_STACK __LC_SAVE_AREA_SYNC,5f
+3:	UPDATE_VTIME %r14,%r15,__LC_SYNC_ENTER_TIMER
 	BPENTER __TI_flags(%r12),_TIF_ISOLATE_BP
 	lg	%r15,__LC_KERNEL_STACK
 	lgr	%r14,%r12
 	aghi	%r14,__TASK_thread	# pointer to thread_struct
 	lghi	%r13,__LC_PGM_TDB
 	tm	__LC_PGM_ILC+2,0x02	# check for transaction abort
-	jz	3f
+	jz	4f
 	mvc	__THREAD_trap_tdb(256,%r14),0(%r13)
-3:	stg	%r10,__THREAD_last_break(%r14)
-4:	lgr	%r13,%r11
+4:	stg	%r10,__THREAD_last_break(%r14)
+5:	lgr	%r13,%r11
 	la	%r11,STACK_FRAME_OVERHEAD(%r15)
 	stmg	%r0,%r7,__PT_R0(%r11)
 	# clear user controlled registers to prevent speculative use
@@ -663,14 +673,14 @@ ENTRY(pgm_check_handler)
 	stg	%r13,__PT_FLAGS(%r11)
 	stg	%r10,__PT_ARGS(%r11)
 	tm	__LC_PGM_ILC+3,0x80	# check for per exception
-	jz	5f
+	jz	6f
 	tmhh	%r8,0x0001		# kernel per event ?
 	jz	.Lpgm_kprobe
 	oi	__PT_FLAGS+7(%r11),_PIF_PER_TRAP
 	mvc	__THREAD_per_address(8,%r14),__LC_PER_ADDRESS
 	mvc	__THREAD_per_cause(2,%r14),__LC_PER_CODE
 	mvc	__THREAD_per_paid(1,%r14),__LC_PER_ACCESS_ID
-5:	REENABLE_IRQS
+6:	REENABLE_IRQS
 	xc	__SF_BACKCHAIN(8,%r15),__SF_BACKCHAIN(%r15)
 	larl	%r1,pgm_check_table
 	llgh	%r10,__PT_INT_CODE+2(%r11)
@@ -775,7 +785,7 @@ ENTRY(io_int_handler)
 	mvc	__VDSO_ECTG_BASE(16,%r14),__LC_EXIT_TIMER
 .Lio_exit_kernel:
 	lmg	%r11,%r15,__PT_R11(%r11)
-	lpswe	__LC_RETURN_PSW
+	b	__LC_RETURN_LPSWE(%r0)
 .Lio_done:
 
 #
@@ -1214,7 +1224,7 @@ ENTRY(mcck_int_handler)
 	stpt	__LC_EXIT_TIMER
 	mvc	__VDSO_ECTG_BASE(16,%r14),__LC_EXIT_TIMER
 0:	lmg	%r11,%r15,__PT_R11(%r11)
-	lpswe	__LC_RETURN_MCCK_PSW
+	b	__LC_RETURN_MCCK_LPSWE
 
 .Lmcck_panic:
 	lg	%r15,__LC_NODAT_STACK
@@ -1271,6 +1281,8 @@ ENDPROC(stack_overflow)
 #endif
 
 ENTRY(cleanup_critical)
+	cghi	%r9,__LC_RETURN_LPSWE
+	je	.Lcleanup_lpswe
 #if IS_ENABLED(CONFIG_KVM)
 	clg	%r9,BASED(.Lcleanup_table_sie)	# .Lsie_gmap
 	jl	0f
@@ -1424,6 +1436,7 @@ ENDPROC(cleanup_critical)
 	mvc	__LC_RETURN_PSW(16),__PT_PSW(%r9)
 	mvc	0(64,%r11),__PT_R8(%r9)
 	lmg	%r0,%r7,__PT_R0(%r9)
+.Lcleanup_lpswe:
 1:	lmg	%r8,%r9,__LC_RETURN_PSW
 	BR_EX	%r14,%r11
 .Lcleanup_sysc_restore_insn:
diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c
index b0afec673f77..4e6299e2ca94 100644
--- a/arch/s390/kernel/process.c
+++ b/arch/s390/kernel/process.c
@@ -105,6 +105,7 @@ int copy_thread_tls(unsigned long clone_flags, unsigned long new_stackp,
 	p->thread.system_timer = 0;
 	p->thread.hardirq_timer = 0;
 	p->thread.softirq_timer = 0;
+	p->thread.last_break = 1;
 
 	frame->sf.back_chain = 0;
 	/* new return point is ret_from_fork */
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index b95e6fa34cc8..4366962f4930 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -73,6 +73,7 @@
 #include <asm/nospec-branch.h>
 #include <asm/mem_detect.h>
 #include <asm/uv.h>
+#include <asm/asm-offsets.h>
 #include "entry.h"
 
 /*
@@ -457,6 +458,8 @@ static void __init setup_lowcore_dat_off(void)
 	lc->spinlock_index = 0;
 	arch_spin_lock_setup(0);
 	lc->br_r1_trampoline = 0x07f1;	/* br %r1 */
+	lc->return_lpswe = gen_lpswe(__LC_RETURN_PSW);
+	lc->return_mcck_lpswe = gen_lpswe(__LC_RETURN_MCCK_PSW);
 
 	set_prefix((u32)(unsigned long) lc);
 	lowcore_ptr[0] = lc;
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 06dddd7c4290..f468a10e5206 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -212,6 +212,8 @@ static int pcpu_alloc_lowcore(struct pcpu *pcpu, int cpu)
 	lc->spinlock_lockval = arch_spin_lockval(cpu);
 	lc->spinlock_index = 0;
 	lc->br_r1_trampoline = 0x07f1;	/* br %r1 */
+	lc->return_lpswe = gen_lpswe(__LC_RETURN_PSW);
+	lc->return_mcck_lpswe = gen_lpswe(__LC_RETURN_MCCK_PSW);
 	if (nmi_alloc_per_cpu(lc))
 		goto out_async;
 	if (vdso_alloc_per_cpu(lc))
diff --git a/arch/s390/mm/vmem.c b/arch/s390/mm/vmem.c
index b403fa14847d..f810930aff42 100644
--- a/arch/s390/mm/vmem.c
+++ b/arch/s390/mm/vmem.c
@@ -415,6 +415,10 @@ void __init vmem_map_init(void)
 		     SET_MEMORY_RO | SET_MEMORY_X);
 	__set_memory(__stext_dma, (__etext_dma - __stext_dma) >> PAGE_SHIFT,
 		     SET_MEMORY_RO | SET_MEMORY_X);
+
+	/* we need lowcore executable for our LPSWE instructions */
+	set_memory_x(0, 1);
+
 	pr_info("Write protected kernel read-only data: %luk\n",
 		(unsigned long)(__end_rodata - _stext) >> 10);
 }
diff --git a/block/blk-mq.c b/block/blk-mq.c
index 3c1abab1fdf5..a8c1a45cedde 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -3007,6 +3007,14 @@ static int blk_mq_alloc_rq_maps(struct blk_mq_tag_set *set)
 
 static int blk_mq_update_queue_map(struct blk_mq_tag_set *set)
 {
+	/*
+	 * blk_mq_map_queues() and multiple .map_queues() implementations
+	 * expect that set->map[HCTX_TYPE_DEFAULT].nr_queues is set to the
+	 * number of hardware queues.
+	 */
+	if (set->nr_maps == 1)
+		set->map[HCTX_TYPE_DEFAULT].nr_queues = set->nr_hw_queues;
+
 	if (set->ops->map_queues && !is_kdump_kernel()) {
 		int i;
 
diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index ce59a3f32eac..abd39cc5ff88 100644
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -1009,6 +1009,10 @@ static bool acpi_s2idle_wake(void)
 		if (acpi_any_fixed_event_status_set())
 			return true;
 
+		/* Check wakeups from drivers sharing the SCI. */
+		if (acpi_check_wakeup_handlers())
+			return true;
+
 		/*
 		 * If there are no EC events to process and at least one of the
 		 * other enabled GPEs is active, the wakeup is regarded as a
diff --git a/drivers/acpi/sleep.h b/drivers/acpi/sleep.h
index 41675d24a9bc..3d90480ce1b1 100644
--- a/drivers/acpi/sleep.h
+++ b/drivers/acpi/sleep.h
@@ -2,6 +2,7 @@
 
 extern void acpi_enable_wakeup_devices(u8 sleep_state);
 extern void acpi_disable_wakeup_devices(u8 sleep_state);
+extern bool acpi_check_wakeup_handlers(void);
 
 extern struct list_head acpi_wakeup_device_list;
 extern struct mutex acpi_device_lock;
diff --git a/drivers/acpi/wakeup.c b/drivers/acpi/wakeup.c
index 9614126bf56e..90c40f992e13 100644
--- a/drivers/acpi/wakeup.c
+++ b/drivers/acpi/wakeup.c
@@ -12,6 +12,15 @@
 #include "internal.h"
 #include "sleep.h"
 
+struct acpi_wakeup_handler {
+	struct list_head list_node;
+	bool (*wakeup)(void *context);
+	void *context;
+};
+
+static LIST_HEAD(acpi_wakeup_handler_head);
+static DEFINE_MUTEX(acpi_wakeup_handler_mutex);
+
 /*
  * We didn't lock acpi_device_lock in the file, because it invokes oops in
  * suspend/resume and isn't really required as this is called in S-state. At
@@ -96,3 +105,75 @@ int __init acpi_wakeup_device_init(void)
 	mutex_unlock(&acpi_device_lock);
 	return 0;
 }
+
+/**
+ * acpi_register_wakeup_handler - Register wakeup handler
+ * @wake_irq: The IRQ through which the device may receive wakeups
+ * @wakeup:   Wakeup-handler to call when the SCI has triggered a wakeup
+ * @context:  Context to pass to the handler when calling it
+ *
+ * Drivers which may share an IRQ with the SCI can use this to register
+ * a handler which returns true when the device they are managing wants
+ * to trigger a wakeup.
+ */
+int acpi_register_wakeup_handler(int wake_irq, bool (*wakeup)(void *context),
+				 void *context)
+{
+	struct acpi_wakeup_handler *handler;
+
+	/*
+	 * If the device is not sharing its IRQ with the SCI, there is no
+	 * need to register the handler.
+	 */
+	if (!acpi_sci_irq_valid() || wake_irq != acpi_sci_irq)
+		return 0;
+
+	handler = kmalloc(sizeof(*handler), GFP_KERNEL);
+	if (!handler)
+		return -ENOMEM;
+
+	handler->wakeup = wakeup;
+	handler->context = context;
+
+	mutex_lock(&acpi_wakeup_handler_mutex);
+	list_add(&handler->list_node, &acpi_wakeup_handler_head);
+	mutex_unlock(&acpi_wakeup_handler_mutex);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(acpi_register_wakeup_handler);
+
+/**
+ * acpi_unregister_wakeup_handler - Unregister wakeup handler
+ * @wakeup:   Wakeup-handler passed to acpi_register_wakeup_handler()
+ * @context:  Context passed to acpi_register_wakeup_handler()
+ */
+void acpi_unregister_wakeup_handler(bool (*wakeup)(void *context),
+				    void *context)
+{
+	struct acpi_wakeup_handler *handler;
+
+	mutex_lock(&acpi_wakeup_handler_mutex);
+	list_for_each_entry(handler, &acpi_wakeup_handler_head, list_node) {
+		if (handler->wakeup == wakeup && handler->context == context) {
+			list_del(&handler->list_node);
+			kfree(handler);
+			break;
+		}
+	}
+	mutex_unlock(&acpi_wakeup_handler_mutex);
+}
+EXPORT_SYMBOL_GPL(acpi_unregister_wakeup_handler);
+
+bool acpi_check_wakeup_handlers(void)
+{
+	struct acpi_wakeup_handler *handler;
+
+	/* No need to lock, nothing else is running when we're called. */
+	list_for_each_entry(handler, &acpi_wakeup_handler_head, list_node) {
+		if (handler->wakeup(handler->context))
+			return true;
+	}
+
+	return false;
+}
diff --git a/drivers/char/hw_random/imx-rngc.c b/drivers/char/hw_random/imx-rngc.c
index 30cf00f8e9a0..0576801944fd 100644
--- a/drivers/char/hw_random/imx-rngc.c
+++ b/drivers/char/hw_random/imx-rngc.c
@@ -105,8 +105,10 @@ static int imx_rngc_self_test(struct imx_rngc *rngc)
 		return -ETIMEDOUT;
 	}
 
-	if (rngc->err_reg != 0)
+	if (rngc->err_reg != 0) {
+		imx_rngc_irq_mask_clear(rngc);
 		return -EIO;
+	}
 
 	return 0;
 }
diff --git a/drivers/char/random.c b/drivers/char/random.c
index a385fc1da1cb..8ff28c14af7e 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -2358,11 +2358,11 @@ struct batched_entropy {
 
 /*
  * Get a random word for internal kernel use only. The quality of the random
- * number is either as good as RDRAND or as good as /dev/urandom, with the
- * goal of being quite fast and not depleting entropy. In order to ensure
+ * number is good as /dev/urandom, but there is no backtrack protection, with
+ * the goal of being quite fast and not depleting entropy. In order to ensure
  * that the randomness provided by this function is okay, the function
- * wait_for_random_bytes() should be called and return 0 at least once
- * at any point prior.
+ * wait_for_random_bytes() should be called and return 0 at least once at any
+ * point prior.
  */
 static DEFINE_PER_CPU(struct batched_entropy, batched_entropy_u64) = {
 	.batch_lock	= __SPIN_LOCK_UNLOCKED(batched_entropy_u64.lock),
@@ -2375,15 +2375,6 @@ u64 get_random_u64(void)
 	struct batched_entropy *batch;
 	static void *previous;
 
-#if BITS_PER_LONG == 64
-	if (arch_get_random_long((unsigned long *)&ret))
-		return ret;
-#else
-	if (arch_get_random_long((unsigned long *)&ret) &&
-	    arch_get_random_long((unsigned long *)&ret + 1))
-	    return ret;
-#endif
-
 	warn_unseeded_randomness(&previous);
 
 	batch = raw_cpu_ptr(&batched_entropy_u64);
@@ -2408,9 +2399,6 @@ u32 get_random_u32(void)
 	struct batched_entropy *batch;
 	static void *previous;
 
-	if (arch_get_random_int(&ret))
-		return ret;
-
 	warn_unseeded_randomness(&previous);
 
 	batch = raw_cpu_ptr(&batched_entropy_u32);
diff --git a/drivers/gpu/drm/i915/i915_active.c b/drivers/gpu/drm/i915/i915_active.c
index 48e16ad93bbd..51dc8753b527 100644
--- a/drivers/gpu/drm/i915/i915_active.c
+++ b/drivers/gpu/drm/i915/i915_active.c
@@ -121,7 +121,7 @@ static inline void debug_active_assert(struct i915_active *ref) { }
 #endif
 
 static void
-__active_retire(struct i915_active *ref)
+__active_retire(struct i915_active *ref, bool lock)
 {
 	struct active_node *it, *n;
 	struct rb_root root;
@@ -138,7 +138,8 @@ __active_retire(struct i915_active *ref)
 		retire = true;
 	}
 
-	mutex_unlock(&ref->mutex);
+	if (likely(lock))
+		mutex_unlock(&ref->mutex);
 	if (!retire)
 		return;
 
@@ -153,21 +154,28 @@ __active_retire(struct i915_active *ref)
 }
 
 static void
-active_retire(struct i915_active *ref)
+active_retire(struct i915_active *ref, bool lock)
 {
 	GEM_BUG_ON(!atomic_read(&ref->count));
 	if (atomic_add_unless(&ref->count, -1, 1))
 		return;
 
 	/* One active may be flushed from inside the acquire of another */
-	mutex_lock_nested(&ref->mutex, SINGLE_DEPTH_NESTING);
-	__active_retire(ref);
+	if (likely(lock))
+		mutex_lock_nested(&ref->mutex, SINGLE_DEPTH_NESTING);
+	__active_retire(ref, lock);
 }
 
 static void
 node_retire(struct i915_active_request *base, struct i915_request *rq)
 {
-	active_retire(node_from_active(base)->ref);
+	active_retire(node_from_active(base)->ref, true);
+}
+
+static void
+node_retire_nolock(struct i915_active_request *base, struct i915_request *rq)
+{
+	active_retire(node_from_active(base)->ref, false);
 }
 
 static struct i915_active_request *
@@ -364,7 +372,7 @@ int i915_active_acquire(struct i915_active *ref)
 void i915_active_release(struct i915_active *ref)
 {
 	debug_active_assert(ref);
-	active_retire(ref);
+	active_retire(ref, true);
 }
 
 static void __active_ungrab(struct i915_active *ref)
@@ -391,7 +399,7 @@ void i915_active_ungrab(struct i915_active *ref)
 {
 	GEM_BUG_ON(!test_bit(I915_ACTIVE_GRAB_BIT, &ref->flags));
 
-	active_retire(ref);
+	active_retire(ref, true);
 	__active_ungrab(ref);
 }
 
@@ -421,12 +429,13 @@ int i915_active_wait(struct i915_active *ref)
 			break;
 		}
 
-		err = i915_active_request_retire(&it->base, BKL(ref));
+		err = i915_active_request_retire(&it->base, BKL(ref),
+						 node_retire_nolock);
 		if (err)
 			break;
 	}
 
-	__active_retire(ref);
+	__active_retire(ref, true);
 	if (err)
 		return err;
 
diff --git a/drivers/gpu/drm/i915/i915_active.h b/drivers/gpu/drm/i915/i915_active.h
index f95058f99057..0ad7ef60d15f 100644
--- a/drivers/gpu/drm/i915/i915_active.h
+++ b/drivers/gpu/drm/i915/i915_active.h
@@ -309,7 +309,7 @@ i915_active_request_isset(const struct i915_active_request *active)
  */
 static inline int __must_check
 i915_active_request_retire(struct i915_active_request *active,
-			   struct mutex *mutex)
+			   struct mutex *mutex, i915_active_retire_fn retire)
 {
 	struct i915_request *request;
 	long ret;
@@ -327,7 +327,7 @@ i915_active_request_retire(struct i915_active_request *active,
 	list_del_init(&active->link);
 	RCU_INIT_POINTER(active->request, NULL);
 
-	active->retire(active, request);
+	retire(active, request);
 
 	return 0;
 }
diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index 6c12da176981..8f776b7de45e 100644
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -2911,6 +2911,7 @@ static int cma_resolve_iboe_route(struct rdma_id_private *id_priv)
 err2:
 	kfree(route->path_rec);
 	route->path_rec = NULL;
+	route->num_paths = 0;
 err1:
 	kfree(work);
 	return ret;
@@ -4719,6 +4720,19 @@ static int __init cma_init(void)
 {
 	int ret;
 
+	/*
+	 * There is a rare lock ordering dependency in cma_netdev_callback()
+	 * that only happens when bonding is enabled. Teach lockdep that rtnl
+	 * must never be nested under lock so it can find these without having
+	 * to test with bonding.
+	 */
+	if (IS_ENABLED(CONFIG_LOCKDEP)) {
+		rtnl_lock();
+		mutex_lock(&lock);
+		mutex_unlock(&lock);
+		rtnl_unlock();
+	}
+
 	cma_wq = alloc_ordered_workqueue("rdma_cm", WQ_MEM_RECLAIM);
 	if (!cma_wq)
 		return -ENOMEM;
diff --git a/drivers/infiniband/core/ucma.c b/drivers/infiniband/core/ucma.c
index 0274e9b704be..f4f79f1292b9 100644
--- a/drivers/infiniband/core/ucma.c
+++ b/drivers/infiniband/core/ucma.c
@@ -91,6 +91,7 @@ struct ucma_context {
 
 	struct ucma_file	*file;
 	struct rdma_cm_id	*cm_id;
+	struct mutex		mutex;
 	u64			uid;
 
 	struct list_head	list;
@@ -216,6 +217,7 @@ static struct ucma_context *ucma_alloc_ctx(struct ucma_file *file)
 	init_completion(&ctx->comp);
 	INIT_LIST_HEAD(&ctx->mc_list);
 	ctx->file = file;
+	mutex_init(&ctx->mutex);
 
 	if (xa_alloc(&ctx_table, &ctx->id, ctx, xa_limit_32b, GFP_KERNEL))
 		goto error;
@@ -589,6 +591,7 @@ static int ucma_free_ctx(struct ucma_context *ctx)
 	}
 
 	events_reported = ctx->events_reported;
+	mutex_destroy(&ctx->mutex);
 	kfree(ctx);
 	return events_reported;
 }
@@ -658,7 +661,10 @@ static ssize_t ucma_bind_ip(struct ucma_file *file, const char __user *inbuf,
 	if (IS_ERR(ctx))
 		return PTR_ERR(ctx);
 
+	mutex_lock(&ctx->mutex);
 	ret = rdma_bind_addr(ctx->cm_id, (struct sockaddr *) &cmd.addr);
+	mutex_unlock(&ctx->mutex);
+
 	ucma_put_ctx(ctx);
 	return ret;
 }
@@ -681,7 +687,9 @@ static ssize_t ucma_bind(struct ucma_file *file, const char __user *inbuf,
 	if (IS_ERR(ctx))
 		return PTR_ERR(ctx);
 
+	mutex_lock(&ctx->mutex);
 	ret = rdma_bind_addr(ctx->cm_id, (struct sockaddr *) &cmd.addr);
+	mutex_unlock(&ctx->mutex);
 	ucma_put_ctx(ctx);
 	return ret;
 }
@@ -705,8 +713,10 @@ static ssize_t ucma_resolve_ip(struct ucma_file *file,
 	if (IS_ERR(ctx))
 		return PTR_ERR(ctx);
 
+	mutex_lock(&ctx->mutex);
 	ret = rdma_resolve_addr(ctx->cm_id, (struct sockaddr *) &cmd.src_addr,
 				(struct sockaddr *) &cmd.dst_addr, cmd.timeout_ms);
+	mutex_unlock(&ctx->mutex);
 	ucma_put_ctx(ctx);
 	return ret;
 }
@@ -731,8 +741,10 @@ static ssize_t ucma_resolve_addr(struct ucma_file *file,
 	if (IS_ERR(ctx))
 		return PTR_ERR(ctx);
 
+	mutex_lock(&ctx->mutex);
 	ret = rdma_resolve_addr(ctx->cm_id, (struct sockaddr *) &cmd.src_addr,
 				(struct sockaddr *) &cmd.dst_addr, cmd.timeout_ms);
+	mutex_unlock(&ctx->mutex);
 	ucma_put_ctx(ctx);
 	return ret;
 }
@@ -752,7 +764,9 @@ static ssize_t ucma_resolve_route(struct ucma_file *file,
 	if (IS_ERR(ctx))
 		return PTR_ERR(ctx);
 
+	mutex_lock(&ctx->mutex);
 	ret = rdma_resolve_route(ctx->cm_id, cmd.timeout_ms);
+	mutex_unlock(&ctx->mutex);
 	ucma_put_ctx(ctx);
 	return ret;
 }
@@ -841,6 +855,7 @@ static ssize_t ucma_query_route(struct ucma_file *file,
 	if (IS_ERR(ctx))
 		return PTR_ERR(ctx);
 
+	mutex_lock(&ctx->mutex);
 	memset(&resp, 0, sizeof resp);
 	addr = (struct sockaddr *) &ctx->cm_id->route.addr.src_addr;
 	memcpy(&resp.src_addr, addr, addr->sa_family == AF_INET ?
@@ -864,6 +879,7 @@ static ssize_t ucma_query_route(struct ucma_file *file,
 		ucma_copy_iw_route(&resp, &ctx->cm_id->route);
 
 out:
+	mutex_unlock(&ctx->mutex);
 	if (copy_to_user(u64_to_user_ptr(cmd.response),
 			 &resp, sizeof(resp)))
 		ret = -EFAULT;
@@ -1014,6 +1030,7 @@ static ssize_t ucma_query(struct ucma_file *file,
 	if (IS_ERR(ctx))
 		return PTR_ERR(ctx);
 
+	mutex_lock(&ctx->mutex);
 	switch (cmd.option) {
 	case RDMA_USER_CM_QUERY_ADDR:
 		ret = ucma_query_addr(ctx, response, out_len);
@@ -1028,6 +1045,7 @@ static ssize_t ucma_query(struct ucma_file *file,
 		ret = -ENOSYS;
 		break;
 	}
+	mutex_unlock(&ctx->mutex);
 
 	ucma_put_ctx(ctx);
 	return ret;
@@ -1068,7 +1086,9 @@ static ssize_t ucma_connect(struct ucma_file *file, const char __user *inbuf,
 		return PTR_ERR(ctx);
 
 	ucma_copy_conn_param(ctx->cm_id, &conn_param, &cmd.conn_param);
+	mutex_lock(&ctx->mutex);
 	ret = rdma_connect(ctx->cm_id, &conn_param);
+	mutex_unlock(&ctx->mutex);
 	ucma_put_ctx(ctx);
 	return ret;
 }
@@ -1089,7 +1109,9 @@ static ssize_t ucma_listen(struct ucma_file *file, const char __user *inbuf,
 
 	ctx->backlog = cmd.backlog > 0 && cmd.backlog < max_backlog ?
 		       cmd.backlog : max_backlog;
+	mutex_lock(&ctx->mutex);
 	ret = rdma_listen(ctx->cm_id, ctx->backlog);
+	mutex_unlock(&ctx->mutex);
 	ucma_put_ctx(ctx);
 	return ret;
 }
@@ -1112,13 +1134,17 @@ static ssize_t ucma_accept(struct ucma_file *file, const char __user *inbuf,
 	if (cmd.conn_param.valid) {
 		ucma_copy_conn_param(ctx->cm_id, &conn_param, &cmd.conn_param);
 		mutex_lock(&file->mut);
+		mutex_lock(&ctx->mutex);
 		ret = __rdma_accept(ctx->cm_id, &conn_param, NULL);
+		mutex_unlock(&ctx->mutex);
 		if (!ret)
 			ctx->uid = cmd.uid;
 		mutex_unlock(&file->mut);
-	} else
+	} else {
+		mutex_lock(&ctx->mutex);
 		ret = __rdma_accept(ctx->cm_id, NULL, NULL);
-
+		mutex_unlock(&ctx->mutex);
+	}
 	ucma_put_ctx(ctx);
 	return ret;
 }
@@ -1137,7 +1163,9 @@ static ssize_t ucma_reject(struct ucma_file *file, const char __user *inbuf,
 	if (IS_ERR(ctx))
 		return PTR_ERR(ctx);
 
+	mutex_lock(&ctx->mutex);
 	ret = rdma_reject(ctx->cm_id, cmd.private_data, cmd.private_data_len);
+	mutex_unlock(&ctx->mutex);
 	ucma_put_ctx(ctx);
 	return ret;
 }
@@ -1156,7 +1184,9 @@ static ssize_t ucma_disconnect(struct ucma_file *file, const char __user *inbuf,
 	if (IS_ERR(ctx))
 		return PTR_ERR(ctx);
 
+	mutex_lock(&ctx->mutex);
 	ret = rdma_disconnect(ctx->cm_id);
+	mutex_unlock(&ctx->mutex);
 	ucma_put_ctx(ctx);
 	return ret;
 }
@@ -1187,7 +1217,9 @@ static ssize_t ucma_init_qp_attr(struct ucma_file *file,
 	resp.qp_attr_mask = 0;
 	memset(&qp_attr, 0, sizeof qp_attr);
 	qp_attr.qp_state = cmd.qp_state;
+	mutex_lock(&ctx->mutex);
 	ret = rdma_init_qp_attr(ctx->cm_id, &qp_attr, &resp.qp_attr_mask);
+	mutex_unlock(&ctx->mutex);
 	if (ret)
 		goto out;
 
@@ -1273,9 +1305,13 @@ static int ucma_set_ib_path(struct ucma_context *ctx,
 		struct sa_path_rec opa;
 
 		sa_convert_path_ib_to_opa(&opa, &sa_path);
+		mutex_lock(&ctx->mutex);
 		ret = rdma_set_ib_path(ctx->cm_id, &opa);
+		mutex_unlock(&ctx->mutex);
 	} else {
+		mutex_lock(&ctx->mutex);
 		ret = rdma_set_ib_path(ctx->cm_id, &sa_path);
+		mutex_unlock(&ctx->mutex);
 	}
 	if (ret)
 		return ret;
@@ -1308,7 +1344,9 @@ static int ucma_set_option_level(struct ucma_context *ctx, int level,
 
 	switch (level) {
 	case RDMA_OPTION_ID:
+		mutex_lock(&ctx->mutex);
 		ret = ucma_set_option_id(ctx, optname, optval, optlen);
+		mutex_unlock(&ctx->mutex);
 		break;
 	case RDMA_OPTION_IB:
 		ret = ucma_set_option_ib(ctx, optname, optval, optlen);
@@ -1368,8 +1406,10 @@ static ssize_t ucma_notify(struct ucma_file *file, const char __user *inbuf,
 	if (IS_ERR(ctx))
 		return PTR_ERR(ctx);
 
+	mutex_lock(&ctx->mutex);
 	if (ctx->cm_id->device)
 		ret = rdma_notify(ctx->cm_id, (enum ib_event_type)cmd.event);
+	mutex_unlock(&ctx->mutex);
 
 	ucma_put_ctx(ctx);
 	return ret;
@@ -1412,8 +1452,10 @@ static ssize_t ucma_process_join(struct ucma_file *file,
 	mc->join_state = join_state;
 	mc->uid = cmd->uid;
 	memcpy(&mc->addr, addr, cmd->addr_size);
+	mutex_lock(&ctx->mutex);
 	ret = rdma_join_multicast(ctx->cm_id, (struct sockaddr *)&mc->addr,
 				  join_state, mc);
+	mutex_unlock(&ctx->mutex);
 	if (ret)
 		goto err2;
 
@@ -1513,7 +1555,10 @@ static ssize_t ucma_leave_multicast(struct ucma_file *file,
 		goto out;
 	}
 
+	mutex_lock(&mc->ctx->mutex);
 	rdma_leave_multicast(mc->ctx->cm_id, (struct sockaddr *) &mc->addr);
+	mutex_unlock(&mc->ctx->mutex);
+
 	mutex_lock(&mc->ctx->file->mut);
 	ucma_cleanup_mc_events(mc);
 	list_del(&mc->list);
diff --git a/drivers/infiniband/hw/hfi1/sysfs.c b/drivers/infiniband/hw/hfi1/sysfs.c
index 90f62c4bddba..074ec71772d2 100644
--- a/drivers/infiniband/hw/hfi1/sysfs.c
+++ b/drivers/infiniband/hw/hfi1/sysfs.c
@@ -674,7 +674,11 @@ int hfi1_create_port_files(struct ib_device *ibdev, u8 port_num,
 		dd_dev_err(dd,
 			   "Skipping sc2vl sysfs info, (err %d) port %u\n",
 			   ret, port_num);
-		goto bail;
+		/*
+		 * Based on the documentation for kobject_init_and_add(), the
+		 * caller should call kobject_put even if this call fails.
+		 */
+		goto bail_sc2vl;
 	}
 	kobject_uevent(&ppd->sc2vl_kobj, KOBJ_ADD);
 
@@ -684,7 +688,7 @@ int hfi1_create_port_files(struct ib_device *ibdev, u8 port_num,
 		dd_dev_err(dd,
 			   "Skipping sl2sc sysfs info, (err %d) port %u\n",
 			   ret, port_num);
-		goto bail_sc2vl;
+		goto bail_sl2sc;
 	}
 	kobject_uevent(&ppd->sl2sc_kobj, KOBJ_ADD);
 
@@ -694,7 +698,7 @@ int hfi1_create_port_files(struct ib_device *ibdev, u8 port_num,
 		dd_dev_err(dd,
 			   "Skipping vl2mtu sysfs info, (err %d) port %u\n",
 			   ret, port_num);
-		goto bail_sl2sc;
+		goto bail_vl2mtu;
 	}
 	kobject_uevent(&ppd->vl2mtu_kobj, KOBJ_ADD);
 
@@ -704,7 +708,7 @@ int hfi1_create_port_files(struct ib_device *ibdev, u8 port_num,
 		dd_dev_err(dd,
 			   "Skipping Congestion Control sysfs info, (err %d) port %u\n",
 			   ret, port_num);
-		goto bail_vl2mtu;
+		goto bail_cc;
 	}
 
 	kobject_uevent(&ppd->pport_cc_kobj, KOBJ_ADD);
@@ -742,7 +746,6 @@ bail_sl2sc:
 	kobject_put(&ppd->sl2sc_kobj);
 bail_sc2vl:
 	kobject_put(&ppd->sc2vl_kobj);
-bail:
 	return ret;
 }
 
@@ -853,8 +856,13 @@ int hfi1_verbs_register_sysfs(struct hfi1_devdata *dd)
 
 	return 0;
 bail:
-	for (i = 0; i < dd->num_sdma; i++)
-		kobject_del(&dd->per_sdma[i].kobj);
+	/*
+	 * The function kobject_put() will call kobject_del() if the kobject
+	 * has been added successfully. The sysfs files created under the
+	 * kobject directory will also be removed during the process.
+	 */
+	for (; i >= 0; i--)
+		kobject_put(&dd->per_sdma[i].kobj);
 
 	return ret;
 }
@@ -867,6 +875,10 @@ void hfi1_verbs_unregister_sysfs(struct hfi1_devdata *dd)
 	struct hfi1_pportdata *ppd;
 	int i;
 
+	/* Unwind operations in hfi1_verbs_register_sysfs() */
+	for (i = 0; i < dd->num_sdma; i++)
+		kobject_put(&dd->per_sdma[i].kobj);
+
 	for (i = 0; i < dd->num_pports; i++) {
 		ppd = &dd->pport[i];
 
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index 0a160fd1383a..4f44a731a48e 100644
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -1181,12 +1181,10 @@ static int mlx5_ib_query_device(struct ib_device *ibdev,
 		if (MLX5_CAP_ETH(mdev, tunnel_stateless_gre))
 			resp.tunnel_offloads_caps |=
 				MLX5_IB_TUNNELED_OFFLOADS_GRE;
-		if (MLX5_CAP_GEN(mdev, flex_parser_protocols) &
-		    MLX5_FLEX_PROTO_CW_MPLS_GRE)
+		if (MLX5_CAP_ETH(mdev, tunnel_stateless_mpls_over_gre))
 			resp.tunnel_offloads_caps |=
 				MLX5_IB_TUNNELED_OFFLOADS_MPLS_GRE;
-		if (MLX5_CAP_GEN(mdev, flex_parser_protocols) &
-		    MLX5_FLEX_PROTO_CW_MPLS_UDP)
+		if (MLX5_CAP_ETH(mdev, tunnel_stateless_mpls_over_udp))
 			resp.tunnel_offloads_caps |=
 				MLX5_IB_TUNNELED_OFFLOADS_MPLS_UDP;
 	}
diff --git a/drivers/infiniband/sw/siw/siw_cm.c b/drivers/infiniband/sw/siw/siw_cm.c
index 31aa41d85ccf..e3bac1a877bb 100644
--- a/drivers/infiniband/sw/siw/siw_cm.c
+++ b/drivers/infiniband/sw/siw/siw_cm.c
@@ -1783,14 +1783,23 @@ int siw_reject(struct iw_cm_id *id, const void *pdata, u8 pd_len)
 	return 0;
 }
 
-static int siw_listen_address(struct iw_cm_id *id, int backlog,
-			      struct sockaddr *laddr, int addr_family)
+/*
+ * siw_create_listen - Create resources for a listener's IWCM ID @id
+ *
+ * Starts listen on the socket address id->local_addr.
+ *
+ */
+int siw_create_listen(struct iw_cm_id *id, int backlog)
 {
 	struct socket *s;
 	struct siw_cep *cep = NULL;
 	struct siw_device *sdev = to_siw_dev(id->device);
+	int addr_family = id->local_addr.ss_family;
 	int rv = 0, s_val;
 
+	if (addr_family != AF_INET && addr_family != AF_INET6)
+		return -EAFNOSUPPORT;
+
 	rv = sock_create(addr_family, SOCK_STREAM, IPPROTO_TCP, &s);
 	if (rv < 0)
 		return rv;
@@ -1805,9 +1814,25 @@ static int siw_listen_address(struct iw_cm_id *id, int backlog,
 		siw_dbg(id->device, "setsockopt error: %d\n", rv);
 		goto error;
 	}
-	rv = s->ops->bind(s, laddr, addr_family == AF_INET ?
-				    sizeof(struct sockaddr_in) :
-				    sizeof(struct sockaddr_in6));
+	if (addr_family == AF_INET) {
+		struct sockaddr_in *laddr = &to_sockaddr_in(id->local_addr);
+
+		/* For wildcard addr, limit binding to current device only */
+		if (ipv4_is_zeronet(laddr->sin_addr.s_addr))
+			s->sk->sk_bound_dev_if = sdev->netdev->ifindex;
+
+		rv = s->ops->bind(s, (struct sockaddr *)laddr,
+				  sizeof(struct sockaddr_in));
+	} else {
+		struct sockaddr_in6 *laddr = &to_sockaddr_in6(id->local_addr);
+
+		/* For wildcard addr, limit binding to current device only */
+		if (ipv6_addr_any(&laddr->sin6_addr))
+			s->sk->sk_bound_dev_if = sdev->netdev->ifindex;
+
+		rv = s->ops->bind(s, (struct sockaddr *)laddr,
+				  sizeof(struct sockaddr_in6));
+	}
 	if (rv) {
 		siw_dbg(id->device, "socket bind error: %d\n", rv);
 		goto error;
@@ -1866,7 +1891,7 @@ static int siw_listen_address(struct iw_cm_id *id, int backlog,
 	list_add_tail(&cep->listenq, (struct list_head *)id->provider_data);
 	cep->state = SIW_EPSTATE_LISTENING;
 
-	siw_dbg(id->device, "Listen at laddr %pISp\n", laddr);
+	siw_dbg(id->device, "Listen at laddr %pISp\n", &id->local_addr);
 
 	return 0;
 
@@ -1924,114 +1949,6 @@ static void siw_drop_listeners(struct iw_cm_id *id)
 	}
 }
 
-/*
- * siw_create_listen - Create resources for a listener's IWCM ID @id
- *
- * Listens on the socket addresses id->local_addr and id->remote_addr.
- *
- * If the listener's @id provides a specific local IP address, at most one
- * listening socket is created and associated with @id.
- *
- * If the listener's @id provides the wildcard (zero) local IP address,
- * a separate listen is performed for each local IP address of the device
- * by creating a listening socket and binding to that local IP address.
- *
- */
-int siw_create_listen(struct iw_cm_id *id, int backlog)
-{
-	struct net_device *dev = to_siw_dev(id->device)->netdev;
-	int rv = 0, listeners = 0;
-
-	siw_dbg(id->device, "backlog %d\n", backlog);
-
-	/*
-	 * For each attached address of the interface, create a
-	 * listening socket, if id->local_addr is the wildcard
-	 * IP address or matches the IP address.
-	 */
-	if (id->local_addr.ss_family == AF_INET) {
-		struct in_device *in_dev = in_dev_get(dev);
-		struct sockaddr_in s_laddr, *s_raddr;
-		const struct in_ifaddr *ifa;
-
-		if (!in_dev) {
-			rv = -ENODEV;
-			goto out;
-		}
-		memcpy(&s_laddr, &id->local_addr, sizeof(s_laddr));
-		s_raddr = (struct sockaddr_in *)&id->remote_addr;
-
-		siw_dbg(id->device,
-			"laddr %pI4:%d, raddr %pI4:%d\n",
-			&s_laddr.sin_addr, ntohs(s_laddr.sin_port),
-			&s_raddr->sin_addr, ntohs(s_raddr->sin_port));
-
-		rtnl_lock();
-		in_dev_for_each_ifa_rtnl(ifa, in_dev) {
-			if (ipv4_is_zeronet(s_laddr.sin_addr.s_addr) ||
-			    s_laddr.sin_addr.s_addr == ifa->ifa_address) {
-				s_laddr.sin_addr.s_addr = ifa->ifa_address;
-
-				rv = siw_listen_address(id, backlog,
-						(struct sockaddr *)&s_laddr,
-						AF_INET);
-				if (!rv)
-					listeners++;
-			}
-		}
-		rtnl_unlock();
-		in_dev_put(in_dev);
-	} else if (id->local_addr.ss_family == AF_INET6) {
-		struct inet6_dev *in6_dev = in6_dev_get(dev);
-		struct inet6_ifaddr *ifp;
-		struct sockaddr_in6 *s_laddr = &to_sockaddr_in6(id->local_addr),
-			*s_raddr = &to_sockaddr_in6(id->remote_addr);
-
-		if (!in6_dev) {
-			rv = -ENODEV;
-			goto out;
-		}
-		siw_dbg(id->device,
-			"laddr %pI6:%d, raddr %pI6:%d\n",
-			&s_laddr->sin6_addr, ntohs(s_laddr->sin6_port),
-			&s_raddr->sin6_addr, ntohs(s_raddr->sin6_port));
-
-		rtnl_lock();
-		list_for_each_entry(ifp, &in6_dev->addr_list, if_list) {
-			if (ifp->flags & (IFA_F_TENTATIVE | IFA_F_DEPRECATED))
-				continue;
-			if (ipv6_addr_any(&s_laddr->sin6_addr) ||
-			    ipv6_addr_equal(&s_laddr->sin6_addr, &ifp->addr)) {
-				struct sockaddr_in6 bind_addr  = {
-					.sin6_family = AF_INET6,
-					.sin6_port = s_laddr->sin6_port,
-					.sin6_flowinfo = 0,
-					.sin6_addr = ifp->addr,
-					.sin6_scope_id = dev->ifindex };
-
-				rv = siw_listen_address(id, backlog,
-						(struct sockaddr *)&bind_addr,
-						AF_INET6);
-				if (!rv)
-					listeners++;
-			}
-		}
-		rtnl_unlock();
-		in6_dev_put(in6_dev);
-	} else {
-		rv = -EAFNOSUPPORT;
-	}
-out:
-	if (listeners)
-		rv = 0;
-	else if (!rv)
-		rv = -EINVAL;
-
-	siw_dbg(id->device, "%s\n", rv ? "FAIL" : "OK");
-
-	return rv;
-}
-
 int siw_destroy_listen(struct iw_cm_id *id)
 {
 	if (!id->provider_data) {
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index 9d47b227e557..0d922eeae357 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -2762,10 +2762,8 @@ static int __init si_domain_init(int hw)
 	}
 
 	/*
-	 * Normally we use DMA domains for devices which have RMRRs. But we
-	 * loose this requirement for graphic and usb devices. Identity map
-	 * the RMRRs for graphic and USB devices so that they could use the
-	 * si_domain.
+	 * Identity map the RMRRs so that devices with RMRRs could also use
+	 * the si_domain.
 	 */
 	for_each_rmrr_units(rmrr) {
 		for_each_active_dev_scope(rmrr->devices, rmrr->devices_cnt,
@@ -2773,9 +2771,6 @@ static int __init si_domain_init(int hw)
 			unsigned long long start = rmrr->base_address;
 			unsigned long long end = rmrr->end_address;
 
-			if (device_is_rmrr_locked(dev))
-				continue;
-
 			if (WARN_ON(end < start ||
 				    end >> agaw_to_width(si_domain->agaw)))
 				continue;
@@ -2914,9 +2909,6 @@ static int device_def_domain_type(struct device *dev)
 	if (dev_is_pci(dev)) {
 		struct pci_dev *pdev = to_pci_dev(dev);
 
-		if (device_is_rmrr_locked(dev))
-			return IOMMU_DOMAIN_DMA;
-
 		/*
 		 * Prevent any device marked as untrusted from getting
 		 * placed into the statically identity mapping domain.
@@ -2954,9 +2946,6 @@ static int device_def_domain_type(struct device *dev)
 				return IOMMU_DOMAIN_DMA;
 		} else if (pci_pcie_type(pdev) == PCI_EXP_TYPE_PCI_BRIDGE)
 			return IOMMU_DOMAIN_DMA;
-	} else {
-		if (device_has_rmrr(dev))
-			return IOMMU_DOMAIN_DMA;
 	}
 
 	return (iommu_identity_mapping & IDENTMAP_ALL) ?
diff --git a/drivers/net/can/slcan.c b/drivers/net/can/slcan.c
index a3664281a33f..4dfa459ef5c7 100644
--- a/drivers/net/can/slcan.c
+++ b/drivers/net/can/slcan.c
@@ -148,7 +148,7 @@ static void slc_bump(struct slcan *sl)
 	u32 tmpid;
 	char *cmd = sl->rbuff;
 
-	cf.can_id = 0;
+	memset(&cf, 0, sizeof(cf));
 
 	switch (*cmd) {
 	case 'r':
@@ -187,8 +187,6 @@ static void slc_bump(struct slcan *sl)
 	else
 		return;
 
-	*(u64 *) (&cf.data) = 0; /* clear payload */
-
 	/* RTR frames may have a dlc > 0 but they never have any data bytes */
 	if (!(cf.can_id & CAN_RTR_FLAG)) {
 		for (i = 0; i < cf.can_dlc; i++) {
diff --git a/drivers/net/dsa/bcm_sf2.c b/drivers/net/dsa/bcm_sf2.c
index 46dc913da852..9502db66092e 100644
--- a/drivers/net/dsa/bcm_sf2.c
+++ b/drivers/net/dsa/bcm_sf2.c
@@ -459,7 +459,7 @@ static int bcm_sf2_mdio_register(struct dsa_switch *ds)
 	priv->slave_mii_bus->parent = ds->dev->parent;
 	priv->slave_mii_bus->phy_mask = ~priv->indir_phy_mask;
 
-	err = of_mdiobus_register(priv->slave_mii_bus, dn);
+	err = mdiobus_register(priv->slave_mii_bus);
 	if (err && dn)
 		of_node_put(dn);
 
@@ -1053,6 +1053,7 @@ static int bcm_sf2_sw_probe(struct platform_device *pdev)
 	const struct bcm_sf2_of_data *data;
 	struct b53_platform_data *pdata;
 	struct dsa_switch_ops *ops;
+	struct device_node *ports;
 	struct bcm_sf2_priv *priv;
 	struct b53_device *dev;
 	struct dsa_switch *ds;
@@ -1115,7 +1116,11 @@ static int bcm_sf2_sw_probe(struct platform_device *pdev)
 	set_bit(0, priv->cfp.used);
 	set_bit(0, priv->cfp.unique);
 
-	bcm_sf2_identify_ports(priv, dn->child);
+	ports = of_find_node_by_name(dn, "ports");
+	if (ports) {
+		bcm_sf2_identify_ports(priv, ports);
+		of_node_put(ports);
+	}
 
 	priv->irq0 = irq_of_parse_and_map(dn, 0);
 	priv->irq1 = irq_of_parse_and_map(dn, 1);
diff --git a/drivers/net/dsa/mt7530.c b/drivers/net/dsa/mt7530.c
index e0e932f0aed1..8071c3fa3fb7 100644
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -1353,6 +1353,9 @@ mt7530_setup(struct dsa_switch *ds)
 				continue;
 
 			phy_node = of_parse_phandle(mac_np, "phy-handle", 0);
+			if (!phy_node)
+				continue;
+
 			if (phy_node->parent == priv->dev->of_node->parent) {
 				interface = of_get_phy_mode(mac_np);
 				id = of_mdio_parse_addr(ds->dev, phy_node);
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
index 38024877751c..069a51847885 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
@@ -3032,7 +3032,6 @@ static int cxgb_set_mac_addr(struct net_device *dev, void *p)
 		return ret;
 
 	memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
-	pi->xact_addr_filt = ret;
 	return 0;
 }
 
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_flower.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_flower.c
index b607919c8ad0..498de6ef6870 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_flower.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_flower.c
@@ -123,9 +123,12 @@ static int mlxsw_sp_flower_parse_actions(struct mlxsw_sp *mlxsw_sp,
 			u8 prio = act->vlan.prio;
 			u16 vid = act->vlan.vid;
 
-			return mlxsw_sp_acl_rulei_act_vlan(mlxsw_sp, rulei,
-							   act->id, vid,
-							   proto, prio, extack);
+			err = mlxsw_sp_acl_rulei_act_vlan(mlxsw_sp, rulei,
+							  act->id, vid,
+							  proto, prio, extack);
+			if (err)
+				return err;
+			break;
 			}
 		default:
 			NL_SET_ERR_MSG_MOD(extack, "Unsupported action");
diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c
index 5ebfc3e66331..3bc6d1ef29ec 100644
--- a/drivers/net/ethernet/realtek/r8169_main.c
+++ b/drivers/net/ethernet/realtek/r8169_main.c
@@ -7167,12 +7167,10 @@ static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 	netif_napi_add(dev, &tp->napi, rtl8169_poll, NAPI_POLL_WEIGHT);
 
-	dev->features |= NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO |
-		NETIF_F_RXCSUM | NETIF_F_HW_VLAN_CTAG_TX |
-		NETIF_F_HW_VLAN_CTAG_RX;
-	dev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO |
-		NETIF_F_RXCSUM | NETIF_F_HW_VLAN_CTAG_TX |
-		NETIF_F_HW_VLAN_CTAG_RX;
+	dev->features |= NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
+			 NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX;
+	dev->hw_features = NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
+			   NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX;
 	dev->vlan_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO |
 		NETIF_F_HIGHDMA;
 	dev->priv_flags |= IFF_LIVE_ADDR_CHANGE;
@@ -7190,25 +7188,25 @@ static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 		dev->hw_features &= ~NETIF_F_HW_VLAN_CTAG_RX;
 
 	if (rtl_chip_supports_csum_v2(tp)) {
-		dev->hw_features |= NETIF_F_IPV6_CSUM | NETIF_F_TSO6;
-		dev->features |= NETIF_F_IPV6_CSUM | NETIF_F_TSO6;
+		dev->hw_features |= NETIF_F_IPV6_CSUM;
+		dev->features |= NETIF_F_IPV6_CSUM;
+	}
+
+	/* There has been a number of reports that using SG/TSO results in
+	 * tx timeouts. However for a lot of people SG/TSO works fine.
+	 * Therefore disable both features by default, but allow users to
+	 * enable them. Use at own risk!
+	 */
+	if (rtl_chip_supports_csum_v2(tp)) {
+		dev->hw_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6;
 		dev->gso_max_size = RTL_GSO_MAX_SIZE_V2;
 		dev->gso_max_segs = RTL_GSO_MAX_SEGS_V2;
 	} else {
+		dev->hw_features |= NETIF_F_SG | NETIF_F_TSO;
 		dev->gso_max_size = RTL_GSO_MAX_SIZE_V1;
 		dev->gso_max_segs = RTL_GSO_MAX_SEGS_V1;
 	}
 
-	/* RTL8168e-vl and one RTL8168c variant are known to have a
-	 * HW issue with TSO.
-	 */
-	if (tp->mac_version == RTL_GIGA_MAC_VER_34 ||
-	    tp->mac_version == RTL_GIGA_MAC_VER_22) {
-		dev->vlan_features &= ~(NETIF_F_ALL_TSO | NETIF_F_SG);
-		dev->hw_features &= ~(NETIF_F_ALL_TSO | NETIF_F_SG);
-		dev->features &= ~(NETIF_F_ALL_TSO | NETIF_F_SG);
-	}
-
 	dev->hw_features |= NETIF_F_RXALL;
 	dev->hw_features |= NETIF_F_RXFCS;
 
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c
index 43a785f86c69..bc9b01376e80 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c
@@ -209,7 +209,7 @@ static void dwmac1000_set_filter(struct mac_device_info *hw,
 			reg++;
 		}
 
-		while (reg <= perfect_addr_number) {
+		while (reg < perfect_addr_number) {
 			writel(0, ioaddr + GMAC_ADDR_HIGH(reg));
 			writel(0, ioaddr + GMAC_ADDR_LOW(reg));
 			reg++;
diff --git a/drivers/net/phy/micrel.c b/drivers/net/phy/micrel.c
index 63dedec0433d..51b64f087717 100644
--- a/drivers/net/phy/micrel.c
+++ b/drivers/net/phy/micrel.c
@@ -25,6 +25,7 @@
 #include <linux/micrel_phy.h>
 #include <linux/of.h>
 #include <linux/clk.h>
+#include <linux/delay.h>
 
 /* Operation Mode Strap Override */
 #define MII_KSZPHY_OMSO				0x16
@@ -902,6 +903,12 @@ static int kszphy_resume(struct phy_device *phydev)
 
 	genphy_resume(phydev);
 
+	/* After switching from power-down to normal mode, an internal global
+	 * reset is automatically generated. Wait a minimum of 1 ms before
+	 * read/write access to the PHY registers.
+	 */
+	usleep_range(1000, 2000);
+
 	ret = kszphy_config_reset(phydev);
 	if (ret)
 		return ret;
diff --git a/drivers/net/phy/realtek.c b/drivers/net/phy/realtek.c
index c76df51dd3c5..879ca37c8508 100644
--- a/drivers/net/phy/realtek.c
+++ b/drivers/net/phy/realtek.c
@@ -456,6 +456,15 @@ static struct phy_driver realtek_drvs[] = {
 		.resume		= genphy_resume,
 		.read_page	= rtl821x_read_page,
 		.write_page	= rtl821x_write_page,
+	}, {
+		PHY_ID_MATCH_MODEL(0x001cc880),
+		.name		= "RTL8208 Fast Ethernet",
+		.read_mmd	= genphy_read_mmd_unsupported,
+		.write_mmd	= genphy_write_mmd_unsupported,
+		.suspend	= genphy_suspend,
+		.resume		= genphy_resume,
+		.read_page	= rtl821x_read_page,
+		.write_page	= rtl821x_write_page,
 	}, {
 		PHY_ID_MATCH_EXACT(0x001cc910),
 		.name		= "RTL8211 Gigabit Ethernet",
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 69f553a028ee..16f5cb249ed5 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -1715,8 +1715,12 @@ static struct sk_buff *tun_build_skb(struct tun_struct *tun,
 			alloc_frag->offset += buflen;
 		}
 		err = tun_xdp_act(tun, xdp_prog, &xdp, act);
-		if (err < 0)
-			goto err_xdp;
+		if (err < 0) {
+			if (act == XDP_REDIRECT || act == XDP_TX)
+				put_page(alloc_frag->page);
+			goto out;
+		}
+
 		if (err == XDP_REDIRECT)
 			xdp_do_flush_map();
 		if (err != XDP_PASS)
@@ -1730,8 +1734,6 @@ static struct sk_buff *tun_build_skb(struct tun_struct *tun,
 
 	return __tun_build_skb(tfile, alloc_frag, buf, buflen, len, pad);
 
-err_xdp:
-	put_page(alloc_frag->page);
 out:
 	rcu_read_unlock();
 	local_bh_enable();
diff --git a/drivers/platform/x86/intel_int0002_vgpio.c b/drivers/platform/x86/intel_int0002_vgpio.c
index af233b7b77f2..29d12f2f59e0 100644
--- a/drivers/platform/x86/intel_int0002_vgpio.c
+++ b/drivers/platform/x86/intel_int0002_vgpio.c
@@ -127,6 +127,14 @@ static irqreturn_t int0002_irq(int irq, void *data)
 	return IRQ_HANDLED;
 }
 
+static bool int0002_check_wake(void *data)
+{
+	u32 gpe_sts_reg;
+
+	gpe_sts_reg = inl(GPE0A_STS_PORT);
+	return (gpe_sts_reg & GPE0A_PME_B0_STS_BIT);
+}
+
 static struct irq_chip int0002_byt_irqchip = {
 	.name			= DRV_NAME,
 	.irq_ack		= int0002_irq_ack,
@@ -220,6 +228,7 @@ static int int0002_probe(struct platform_device *pdev)
 
 	gpiochip_set_chained_irqchip(chip, irq_chip, irq, NULL);
 
+	acpi_register_wakeup_handler(irq, int0002_check_wake, NULL);
 	device_init_wakeup(dev, true);
 	return 0;
 }
@@ -227,6 +236,7 @@ static int int0002_probe(struct platform_device *pdev)
 static int int0002_remove(struct platform_device *pdev)
 {
 	device_init_wakeup(&pdev->dev, false);
+	acpi_unregister_wakeup_handler(int0002_check_wake, NULL);
 	return 0;
 }
 
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 6ac02ba5e4a1..09d6b11246c9 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -1518,7 +1518,7 @@ static void dwc3_gadget_ep_skip_trbs(struct dwc3_ep *dep, struct dwc3_request *r
 	for (i = 0; i < req->num_trbs; i++) {
 		struct dwc3_trb *trb;
 
-		trb = req->trb + i;
+		trb = &dep->trb_pool[dep->trb_dequeue];
 		trb->ctrl &= ~DWC3_TRB_CTRL_HWO;
 		dwc3_ep_inc_deq(dep);
 	}
diff --git a/drivers/video/fbdev/core/fbcon.c b/drivers/video/fbdev/core/fbcon.c
index c9235a2f42f8..22070cfea1d0 100644
--- a/drivers/video/fbdev/core/fbcon.c
+++ b/drivers/video/fbdev/core/fbcon.c
@@ -1276,6 +1276,9 @@ finished:
 	if (!con_is_bound(&fb_con))
 		fbcon_exit();
 
+	if (vc->vc_num == logo_shown)
+		logo_shown = FBCON_LOGO_CANSHOW;
+
 	return;
 }
 
diff --git a/fs/ceph/super.c b/fs/ceph/super.c
index 62fc7d46032e..d40658d5e808 100644
--- a/fs/ceph/super.c
+++ b/fs/ceph/super.c
@@ -106,7 +106,6 @@ static int ceph_statfs(struct dentry *dentry, struct kstatfs *buf)
 	return 0;
 }
 
-
 static int ceph_sync_fs(struct super_block *sb, int wait)
 {
 	struct ceph_fs_client *fsc = ceph_sb_to_client(sb);
@@ -215,6 +214,26 @@ static match_table_t fsopt_tokens = {
 	{-1, NULL}
 };
 
+/*
+ * Remove adjacent slashes and then the trailing slash, unless it is
+ * the only remaining character.
+ *
+ * E.g. "//dir1////dir2///" --> "/dir1/dir2", "///" --> "/".
+ */
+static void canonicalize_path(char *path)
+{
+	int i, j = 0;
+
+	for (i = 0; path[i] != '\0'; i++) {
+		if (path[i] != '/' || j < 1 || path[j - 1] != '/')
+			path[j++] = path[i];
+	}
+
+	if (j > 1 && path[j - 1] == '/')
+		j--;
+	path[j] = '\0';
+}
+
 static int parse_fsopt_token(char *c, void *private)
 {
 	struct ceph_mount_options *fsopt = private;
@@ -446,12 +465,15 @@ static int compare_mount_options(struct ceph_mount_options *new_fsopt,
 	ret = strcmp_null(fsopt1->snapdir_name, fsopt2->snapdir_name);
 	if (ret)
 		return ret;
+
 	ret = strcmp_null(fsopt1->mds_namespace, fsopt2->mds_namespace);
 	if (ret)
 		return ret;
+
 	ret = strcmp_null(fsopt1->server_path, fsopt2->server_path);
 	if (ret)
 		return ret;
+
 	ret = strcmp_null(fsopt1->fscache_uniq, fsopt2->fscache_uniq);
 	if (ret)
 		return ret;
@@ -507,13 +529,17 @@ static int parse_mount_options(struct ceph_mount_options **pfsopt,
 	 */
 	dev_name_end = strchr(dev_name, '/');
 	if (dev_name_end) {
-		if (strlen(dev_name_end) > 1) {
-			fsopt->server_path = kstrdup(dev_name_end, GFP_KERNEL);
-			if (!fsopt->server_path) {
-				err = -ENOMEM;
-				goto out;
-			}
+		/*
+		 * The server_path will include the whole chars from userland
+		 * including the leading '/'.
+		 */
+		fsopt->server_path = kstrdup(dev_name_end, GFP_KERNEL);
+		if (!fsopt->server_path) {
+			err = -ENOMEM;
+			goto out;
 		}
+
+		canonicalize_path(fsopt->server_path);
 	} else {
 		dev_name_end = dev_name + strlen(dev_name);
 	}
@@ -842,7 +868,6 @@ static void destroy_caches(void)
 	ceph_fscache_unregister();
 }
 
-
 /*
  * ceph_umount_begin - initiate forced umount.  Tear down down the
  * mount, skipping steps that may hang while waiting for server(s).
@@ -929,9 +954,6 @@ out:
 	return root;
 }
 
-
-
-
 /*
  * mount: join the ceph cluster, and open root directory.
  */
@@ -945,7 +967,9 @@ static struct dentry *ceph_real_mount(struct ceph_fs_client *fsc)
 	mutex_lock(&fsc->client->mount_mutex);
 
 	if (!fsc->sb->s_root) {
-		const char *path;
+		const char *path = fsc->mount_options->server_path ?
+				     fsc->mount_options->server_path + 1 : "";
+
 		err = __ceph_open_session(fsc->client, started);
 		if (err < 0)
 			goto out;
@@ -957,13 +981,7 @@ static struct dentry *ceph_real_mount(struct ceph_fs_client *fsc)
 				goto out;
 		}
 
-		if (!fsc->mount_options->server_path) {
-			path = "";
-			dout("mount opening path \\t\n");
-		} else {
-			path = fsc->mount_options->server_path + 1;
-			dout("mount opening path %s\n", path);
-		}
+		dout("mount opening path '%s'\n", path);
 
 		ceph_fs_debugfs_init(fsc);
 
diff --git a/fs/ceph/super.h b/fs/ceph/super.h
index f98d9247f9cb..bb12c9f3a218 100644
--- a/fs/ceph/super.h
+++ b/fs/ceph/super.h
@@ -92,7 +92,7 @@ struct ceph_mount_options {
 
 	char *snapdir_name;   /* default ".snap" */
 	char *mds_namespace;  /* default NULL */
-	char *server_path;    /* default  "/" */
+	char *server_path;    /* default NULL (means "/") */
 	char *fscache_uniq;   /* default NULL */
 };
 
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 8b4e516bac00..ce29a014e591 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -473,6 +473,11 @@ void __init acpi_nvs_nosave_s3(void);
 void __init acpi_sleep_no_blacklist(void);
 #endif /* CONFIG_PM_SLEEP */
 
+int acpi_register_wakeup_handler(
+	int wake_irq, bool (*wakeup)(void *context), void *context);
+void acpi_unregister_wakeup_handler(
+	bool (*wakeup)(void *context), void *context);
+
 struct acpi_osc_context {
 	char *uuid_str;			/* UUID string */
 	int rev;
diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h
index 0cdc8d12785a..acd859ea09d4 100644
--- a/include/linux/mlx5/mlx5_ifc.h
+++ b/include/linux/mlx5/mlx5_ifc.h
@@ -857,7 +857,11 @@ struct mlx5_ifc_per_protocol_networking_offload_caps_bits {
 	u8         swp_csum[0x1];
 	u8         swp_lso[0x1];
 	u8         cqe_checksum_full[0x1];
-	u8         reserved_at_24[0x5];
+	u8         tunnel_stateless_geneve_tx[0x1];
+	u8         tunnel_stateless_mpls_over_udp[0x1];
+	u8         tunnel_stateless_mpls_over_gre[0x1];
+	u8         tunnel_stateless_vxlan_gpe[0x1];
+	u8         tunnel_stateless_ipv4_over_vxlan[0x1];
 	u8         tunnel_stateless_ip_over_ip[0x1];
 	u8         reserved_at_2a[0x6];
 	u8         max_vxlan_udp_ports[0x8];
diff --git a/include/linux/swab.h b/include/linux/swab.h
index e466fd159c85..bcff5149861a 100644
--- a/include/linux/swab.h
+++ b/include/linux/swab.h
@@ -7,6 +7,7 @@
 # define swab16 __swab16
 # define swab32 __swab32
 # define swab64 __swab64
+# define swab __swab
 # define swahw32 __swahw32
 # define swahb32 __swahb32
 # define swab16p __swab16p
diff --git a/include/uapi/linux/swab.h b/include/uapi/linux/swab.h
index 23cd84868cc3..7272f85d6d6a 100644
--- a/include/uapi/linux/swab.h
+++ b/include/uapi/linux/swab.h
@@ -4,6 +4,7 @@
 
 #include <linux/types.h>
 #include <linux/compiler.h>
+#include <asm/bitsperlong.h>
 #include <asm/swab.h>
 
 /*
@@ -132,6 +133,15 @@ static inline __attribute_const__ __u32 __fswahb32(__u32 val)
 	__fswab64(x))
 #endif
 
+static __always_inline unsigned long __swab(const unsigned long y)
+{
+#if __BITS_PER_LONG == 64
+	return __swab64(y);
+#else /* __BITS_PER_LONG == 32 */
+	return __swab32(y);
+#endif
+}
+
 /**
  * __swahw32 - return a word-swapped 32-bit value
  * @x: value to wordswap
diff --git a/lib/find_bit.c b/lib/find_bit.c
index 5c51eb45178a..4e68490fa703 100644
--- a/lib/find_bit.c
+++ b/lib/find_bit.c
@@ -149,18 +149,6 @@ EXPORT_SYMBOL(find_last_bit);
 
 #ifdef __BIG_ENDIAN
 
-/* include/linux/byteorder does not support "unsigned long" type */
-static inline unsigned long ext2_swab(const unsigned long y)
-{
-#if BITS_PER_LONG == 64
-	return (unsigned long) __swab64((u64) y);
-#elif BITS_PER_LONG == 32
-	return (unsigned long) __swab32((u32) y);
-#else
-#error BITS_PER_LONG not defined
-#endif
-}
-
 #if !defined(find_next_bit_le) || !defined(find_next_zero_bit_le)
 static inline unsigned long _find_next_bit_le(const unsigned long *addr1,
 		const unsigned long *addr2, unsigned long nbits,
@@ -177,7 +165,7 @@ static inline unsigned long _find_next_bit_le(const unsigned long *addr1,
 	tmp ^= invert;
 
 	/* Handle 1st word. */
-	tmp &= ext2_swab(BITMAP_FIRST_WORD_MASK(start));
+	tmp &= swab(BITMAP_FIRST_WORD_MASK(start));
 	start = round_down(start, BITS_PER_LONG);
 
 	while (!tmp) {
@@ -191,7 +179,7 @@ static inline unsigned long _find_next_bit_le(const unsigned long *addr1,
 		tmp ^= invert;
 	}
 
-	return min(start + __ffs(ext2_swab(tmp)), nbits);
+	return min(start + __ffs(swab(tmp)), nbits);
 }
 #endif
 
diff --git a/mm/slub.c b/mm/slub.c
index 59ed00be02cb..af44807d5b05 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -261,7 +261,7 @@ static inline void *freelist_ptr(const struct kmem_cache *s, void *ptr,
 	 * freepointer to be restored incorrectly.
 	 */
 	return (void *)((unsigned long)ptr ^ s->random ^
-			(unsigned long)kasan_reset_tag((void *)ptr_addr));
+			swab((unsigned long)kasan_reset_tag((void *)ptr_addr)));
 #else
 	return ptr;
 #endif
diff --git a/net/bluetooth/rfcomm/tty.c b/net/bluetooth/rfcomm/tty.c
index 0c7d31c6c18c..a58584949a95 100644
--- a/net/bluetooth/rfcomm/tty.c
+++ b/net/bluetooth/rfcomm/tty.c
@@ -413,10 +413,8 @@ static int __rfcomm_create_dev(struct sock *sk, void __user *arg)
 		dlc = rfcomm_dlc_exists(&req.src, &req.dst, req.channel);
 		if (IS_ERR(dlc))
 			return PTR_ERR(dlc);
-		else if (dlc) {
-			rfcomm_dlc_put(dlc);
+		if (dlc)
 			return -EBUSY;
-		}
 		dlc = rfcomm_dlc_alloc(GFP_KERNEL);
 		if (!dlc)
 			return -ENOMEM;
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index d02ccd749a60..6e1d200f30c1 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -3296,6 +3296,10 @@ static void addrconf_addr_gen(struct inet6_dev *idev, bool prefix_route)
 	if (netif_is_l3_master(idev->dev))
 		return;
 
+	/* no link local addresses on devices flagged as slaves */
+	if (idev->dev->flags & IFF_SLAVE)
+		return;
+
 	ipv6_addr_set(&addr, htonl(0xFE800000), 0, 0, 0);
 
 	switch (idev->cnf.addr_gen_mode) {
diff --git a/net/sched/cls_tcindex.c b/net/sched/cls_tcindex.c
index 9904299424a1..61e95029c18f 100644
--- a/net/sched/cls_tcindex.c
+++ b/net/sched/cls_tcindex.c
@@ -11,6 +11,7 @@
 #include <linux/skbuff.h>
 #include <linux/errno.h>
 #include <linux/slab.h>
+#include <linux/refcount.h>
 #include <net/act_api.h>
 #include <net/netlink.h>
 #include <net/pkt_cls.h>
@@ -26,9 +27,12 @@
 #define DEFAULT_HASH_SIZE	64	/* optimized for diffserv */
 
 
+struct tcindex_data;
+
 struct tcindex_filter_result {
 	struct tcf_exts		exts;
 	struct tcf_result	res;
+	struct tcindex_data	*p;
 	struct rcu_work		rwork;
 };
 
@@ -49,6 +53,7 @@ struct tcindex_data {
 	u32 hash;		/* hash table size; 0 if undefined */
 	u32 alloc_hash;		/* allocated size */
 	u32 fall_through;	/* 0: only classify if explicit match */
+	refcount_t refcnt;	/* a temporary refcnt for perfect hash */
 	struct rcu_work rwork;
 };
 
@@ -57,6 +62,20 @@ static inline int tcindex_filter_is_set(struct tcindex_filter_result *r)
 	return tcf_exts_has_actions(&r->exts) || r->res.classid;
 }
 
+static void tcindex_data_get(struct tcindex_data *p)
+{
+	refcount_inc(&p->refcnt);
+}
+
+static void tcindex_data_put(struct tcindex_data *p)
+{
+	if (refcount_dec_and_test(&p->refcnt)) {
+		kfree(p->perfect);
+		kfree(p->h);
+		kfree(p);
+	}
+}
+
 static struct tcindex_filter_result *tcindex_lookup(struct tcindex_data *p,
 						    u16 key)
 {
@@ -132,6 +151,7 @@ static int tcindex_init(struct tcf_proto *tp)
 	p->mask = 0xffff;
 	p->hash = DEFAULT_HASH_SIZE;
 	p->fall_through = 1;
+	refcount_set(&p->refcnt, 1); /* Paired with tcindex_destroy_work() */
 
 	rcu_assign_pointer(tp->root, p);
 	return 0;
@@ -141,6 +161,7 @@ static void __tcindex_destroy_rexts(struct tcindex_filter_result *r)
 {
 	tcf_exts_destroy(&r->exts);
 	tcf_exts_put_net(&r->exts);
+	tcindex_data_put(r->p);
 }
 
 static void tcindex_destroy_rexts_work(struct work_struct *work)
@@ -212,6 +233,8 @@ found:
 		else
 			__tcindex_destroy_fexts(f);
 	} else {
+		tcindex_data_get(p);
+
 		if (tcf_exts_get_net(&r->exts))
 			tcf_queue_work(&r->rwork, tcindex_destroy_rexts_work);
 		else
@@ -228,9 +251,7 @@ static void tcindex_destroy_work(struct work_struct *work)
 					      struct tcindex_data,
 					      rwork);
 
-	kfree(p->perfect);
-	kfree(p->h);
-	kfree(p);
+	tcindex_data_put(p);
 }
 
 static inline int
@@ -248,9 +269,11 @@ static const struct nla_policy tcindex_policy[TCA_TCINDEX_MAX + 1] = {
 };
 
 static int tcindex_filter_result_init(struct tcindex_filter_result *r,
+				      struct tcindex_data *p,
 				      struct net *net)
 {
 	memset(r, 0, sizeof(*r));
+	r->p = p;
 	return tcf_exts_init(&r->exts, net, TCA_TCINDEX_ACT,
 			     TCA_TCINDEX_POLICE);
 }
@@ -290,6 +313,7 @@ static int tcindex_alloc_perfect_hash(struct net *net, struct tcindex_data *cp)
 				    TCA_TCINDEX_ACT, TCA_TCINDEX_POLICE);
 		if (err < 0)
 			goto errout;
+		cp->perfect[i].p = cp;
 	}
 
 	return 0;
@@ -334,6 +358,7 @@ tcindex_set_parms(struct net *net, struct tcf_proto *tp, unsigned long base,
 	cp->alloc_hash = p->alloc_hash;
 	cp->fall_through = p->fall_through;
 	cp->tp = tp;
+	refcount_set(&cp->refcnt, 1); /* Paired with tcindex_destroy_work() */
 
 	if (tb[TCA_TCINDEX_HASH])
 		cp->hash = nla_get_u32(tb[TCA_TCINDEX_HASH]);
@@ -366,7 +391,7 @@ tcindex_set_parms(struct net *net, struct tcf_proto *tp, unsigned long base,
 	}
 	cp->h = p->h;
 
-	err = tcindex_filter_result_init(&new_filter_result, net);
+	err = tcindex_filter_result_init(&new_filter_result, cp, net);
 	if (err < 0)
 		goto errout_alloc;
 	if (old_r)
@@ -434,7 +459,7 @@ tcindex_set_parms(struct net *net, struct tcf_proto *tp, unsigned long base,
 			goto errout_alloc;
 		f->key = handle;
 		f->next = NULL;
-		err = tcindex_filter_result_init(&f->result, net);
+		err = tcindex_filter_result_init(&f->result, cp, net);
 		if (err < 0) {
 			kfree(f);
 			goto errout_alloc;
@@ -447,7 +472,7 @@ tcindex_set_parms(struct net *net, struct tcf_proto *tp, unsigned long base,
 	}
 
 	if (old_r && old_r != r) {
-		err = tcindex_filter_result_init(old_r, net);
+		err = tcindex_filter_result_init(old_r, cp, net);
 		if (err < 0) {
 			kfree(f);
 			goto errout_alloc;
@@ -571,6 +596,14 @@ static void tcindex_destroy(struct tcf_proto *tp, bool rtnl_held,
 		for (i = 0; i < p->hash; i++) {
 			struct tcindex_filter_result *r = p->perfect + i;
 
+			/* tcf_queue_work() does not guarantee the ordering we
+			 * want, so we have to take this refcnt temporarily to
+			 * ensure 'p' is freed after all tcindex_filter_result
+			 * here. Imperfect hash does not need this, because it
+			 * uses linked lists rather than an array.
+			 */
+			tcindex_data_get(p);
+
 			tcf_unbind_filter(tp, &r->res);
 			if (tcf_exts_get_net(&r->exts))
 				tcf_queue_work(&r->rwork,
diff --git a/sound/soc/jz4740/jz4740-i2s.c b/sound/soc/jz4740/jz4740-i2s.c
index 13408de34055..0bbd86390be5 100644
--- a/sound/soc/jz4740/jz4740-i2s.c
+++ b/sound/soc/jz4740/jz4740-i2s.c
@@ -83,7 +83,7 @@
 #define JZ_AIC_I2S_STATUS_BUSY BIT(2)
 
 #define JZ_AIC_CLK_DIV_MASK 0xf
-#define I2SDIV_DV_SHIFT 8
+#define I2SDIV_DV_SHIFT 0
 #define I2SDIV_DV_MASK (0xf << I2SDIV_DV_SHIFT)
 #define I2SDIV_IDV_SHIFT 8
 #define I2SDIV_IDV_MASK (0xf << I2SDIV_IDV_SHIFT)
diff --git a/tools/accounting/getdelays.c b/tools/accounting/getdelays.c
index 8cb504d30384..5ef1c15e88ad 100644
--- a/tools/accounting/getdelays.c
+++ b/tools/accounting/getdelays.c
@@ -136,7 +136,7 @@ static int send_cmd(int sd, __u16 nlmsg_type, __u32 nlmsg_pid,
 	msg.g.version = 0x1;
 	na = (struct nlattr *) GENLMSG_DATA(&msg);
 	na->nla_type = nla_type;
-	na->nla_len = nla_len + 1 + NLA_HDRLEN;
+	na->nla_len = nla_len + NLA_HDRLEN;
 	memcpy(NLA_DATA(na), nla_data, nla_len);
 	msg.n.nlmsg_len += NLMSG_ALIGN(na->nla_len);