[gentoo-commits] proj/linux-patches:4.14 commit in: /

[Mike Pagano]

commit:     55556458720a655972433c367328b0cb918faebe
Author:     Mike Pagano <mpagano <AT> gentoo <DOT> org>
AuthorDate: Wed Nov 21 12:26:45 2018 +0000
Commit:     Mike Pagano <mpagano <AT> gentoo <DOT> org>
CommitDate: Wed Nov 21 12:26:45 2018 +0000
URL:        https://gitweb.gentoo.org/proj/linux-patches.git/commit/?id=55556458

proj/linux-patches: Linux patch 4.14.82

Signed-off-by: Mike Pagano <mpagano <AT> gentoo.org>

 0000_README              |    4 +
 1081_linux-4.14.82.patch | 3276 ++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 3280 insertions(+)

diff --git a/0000_README b/0000_README
index 70ae288..b8ff7e8 100644
--- a/0000_README
+++ b/0000_README
@@ -367,6 +367,10 @@ Patch:  1080-4.14.81.patch
 From:   http://www.kernel.org
 Desc:   Linux 4.14.81
 
+Patch:  1081-4.14.82.patch
+From:   http://www.kernel.org
+Desc:   Linux 4.14.82
+
 Patch:  1500_XATTR_USER_PREFIX.patch
 From:   https://bugs.gentoo.org/show_bug.cgi?id=470644
 Desc:   Support for namespace user.pax.* on tmpfs.

diff --git a/1081_linux-4.14.82.patch b/1081_linux-4.14.82.patch
new file mode 100644
index 0000000..d95f88b
--- /dev/null
+++ b/1081_linux-4.14.82.patch
@@ -0,0 +1,3276 @@
+diff --git a/Makefile b/Makefile
+index 2fe1424d61d2..cac5323bc95d 100644
+--- a/Makefile
++++ b/Makefile
+@@ -1,7 +1,7 @@
+ # SPDX-License-Identifier: GPL-2.0
+ VERSION = 4
+ PATCHLEVEL = 14
+-SUBLEVEL = 81
++SUBLEVEL = 82
+ EXTRAVERSION =
+ NAME = Petit Gorille
+ 
+diff --git a/arch/alpha/include/asm/termios.h b/arch/alpha/include/asm/termios.h
+index 6a8c53dec57e..b7c77bb1bfd2 100644
+--- a/arch/alpha/include/asm/termios.h
++++ b/arch/alpha/include/asm/termios.h
+@@ -73,9 +73,15 @@
+ })
+ 
+ #define user_termios_to_kernel_termios(k, u) \
+-	copy_from_user(k, u, sizeof(struct termios))
++	copy_from_user(k, u, sizeof(struct termios2))
+ 
+ #define kernel_termios_to_user_termios(u, k) \
++	copy_to_user(u, k, sizeof(struct termios2))
++
++#define user_termios_to_kernel_termios_1(k, u) \
++	copy_from_user(k, u, sizeof(struct termios))
++
++#define kernel_termios_to_user_termios_1(u, k) \
+ 	copy_to_user(u, k, sizeof(struct termios))
+ 
+ #endif	/* _ALPHA_TERMIOS_H */
+diff --git a/arch/alpha/include/uapi/asm/ioctls.h b/arch/alpha/include/uapi/asm/ioctls.h
+index 3729d92d3fa8..dc8c20ac7191 100644
+--- a/arch/alpha/include/uapi/asm/ioctls.h
++++ b/arch/alpha/include/uapi/asm/ioctls.h
+@@ -32,6 +32,11 @@
+ #define TCXONC		_IO('t', 30)
+ #define TCFLSH		_IO('t', 31)
+ 
++#define TCGETS2		_IOR('T', 42, struct termios2)
++#define TCSETS2		_IOW('T', 43, struct termios2)
++#define TCSETSW2	_IOW('T', 44, struct termios2)
++#define TCSETSF2	_IOW('T', 45, struct termios2)
++
+ #define TIOCSWINSZ	_IOW('t', 103, struct winsize)
+ #define TIOCGWINSZ	_IOR('t', 104, struct winsize)
+ #define	TIOCSTART	_IO('t', 110)		/* start output, like ^Q */
+diff --git a/arch/alpha/include/uapi/asm/termbits.h b/arch/alpha/include/uapi/asm/termbits.h
+index 05e0398a83a6..53b3ecff2f50 100644
+--- a/arch/alpha/include/uapi/asm/termbits.h
++++ b/arch/alpha/include/uapi/asm/termbits.h
+@@ -26,6 +26,19 @@ struct termios {
+ 	speed_t c_ospeed;		/* output speed */
+ };
+ 
++/* Alpha has identical termios and termios2 */
++
++struct termios2 {
++	tcflag_t c_iflag;		/* input mode flags */
++	tcflag_t c_oflag;		/* output mode flags */
++	tcflag_t c_cflag;		/* control mode flags */
++	tcflag_t c_lflag;		/* local mode flags */
++	cc_t c_cc[NCCS];		/* control characters */
++	cc_t c_line;			/* line discipline (== c_cc[19]) */
++	speed_t c_ispeed;		/* input speed */
++	speed_t c_ospeed;		/* output speed */
++};
++
+ /* Alpha has matching termios and ktermios */
+ 
+ struct ktermios {
+@@ -148,6 +161,7 @@ struct ktermios {
+ #define B3000000  00034
+ #define B3500000  00035
+ #define B4000000  00036
++#define BOTHER    00037
+ 
+ #define CSIZE	00001400
+ #define   CS5	00000000
+@@ -165,6 +179,9 @@ struct ktermios {
+ #define CMSPAR	  010000000000		/* mark or space (stick) parity */
+ #define CRTSCTS	  020000000000		/* flow control */
+ 
++#define CIBAUD	07600000
++#define IBSHIFT	16
++
+ /* c_lflag bits */
+ #define ISIG	0x00000080
+ #define ICANON	0x00000100
+diff --git a/arch/arm/configs/imx_v6_v7_defconfig b/arch/arm/configs/imx_v6_v7_defconfig
+index 32acac9ab81a..9c795ceedd5b 100644
+--- a/arch/arm/configs/imx_v6_v7_defconfig
++++ b/arch/arm/configs/imx_v6_v7_defconfig
+@@ -383,6 +383,7 @@ CONFIG_ZISOFS=y
+ CONFIG_UDF_FS=m
+ CONFIG_MSDOS_FS=m
+ CONFIG_VFAT_FS=y
++CONFIG_TMPFS_POSIX_ACL=y
+ CONFIG_JFFS2_FS=y
+ CONFIG_UBIFS_FS=y
+ CONFIG_NFS_FS=y
+diff --git a/arch/arm/mm/proc-v7.S b/arch/arm/mm/proc-v7.S
+index 12468d9378d8..d8d90cf65b39 100644
+--- a/arch/arm/mm/proc-v7.S
++++ b/arch/arm/mm/proc-v7.S
+@@ -112,7 +112,7 @@ ENTRY(cpu_v7_hvc_switch_mm)
+ 	hvc	#0
+ 	ldmfd	sp!, {r0 - r3}
+ 	b	cpu_v7_switch_mm
+-ENDPROC(cpu_v7_smc_switch_mm)
++ENDPROC(cpu_v7_hvc_switch_mm)
+ #endif
+ ENTRY(cpu_v7_iciallu_switch_mm)
+ 	mov	r3, #0
+diff --git a/arch/mips/include/asm/mach-loongson64/irq.h b/arch/mips/include/asm/mach-loongson64/irq.h
+index 3644b68c0ccc..be9f727a9328 100644
+--- a/arch/mips/include/asm/mach-loongson64/irq.h
++++ b/arch/mips/include/asm/mach-loongson64/irq.h
+@@ -10,7 +10,7 @@
+ #define MIPS_CPU_IRQ_BASE 56
+ 
+ #define LOONGSON_UART_IRQ   (MIPS_CPU_IRQ_BASE + 2) /* UART */
+-#define LOONGSON_HT1_IRQ    (MIPS_CPU_IRQ_BASE + 3) /* HT1 */
++#define LOONGSON_BRIDGE_IRQ (MIPS_CPU_IRQ_BASE + 3) /* CASCADE */
+ #define LOONGSON_TIMER_IRQ  (MIPS_CPU_IRQ_BASE + 7) /* CPU Timer */
+ 
+ #define LOONGSON_HT1_CFG_BASE		loongson_sysconf.ht_control_base
+diff --git a/arch/mips/kernel/crash.c b/arch/mips/kernel/crash.c
+index d455363d51c3..4c07a43a3242 100644
+--- a/arch/mips/kernel/crash.c
++++ b/arch/mips/kernel/crash.c
+@@ -36,6 +36,9 @@ static void crash_shutdown_secondary(void *passed_regs)
+ 	if (!cpu_online(cpu))
+ 		return;
+ 
++	/* We won't be sent IPIs any more. */
++	set_cpu_online(cpu, false);
++
+ 	local_irq_disable();
+ 	if (!cpumask_test_cpu(cpu, &cpus_in_crash))
+ 		crash_save_cpu(regs, cpu);
+diff --git a/arch/mips/kernel/machine_kexec.c b/arch/mips/kernel/machine_kexec.c
+index 8b574bcd39ba..4b3726e4fe3a 100644
+--- a/arch/mips/kernel/machine_kexec.c
++++ b/arch/mips/kernel/machine_kexec.c
+@@ -118,6 +118,9 @@ machine_kexec(struct kimage *image)
+ 			*ptr = (unsigned long) phys_to_virt(*ptr);
+ 	}
+ 
++	/* Mark offline BEFORE disabling local irq. */
++	set_cpu_online(smp_processor_id(), false);
++
+ 	/*
+ 	 * we do not want to be bothered.
+ 	 */
+diff --git a/arch/mips/loongson64/loongson-3/irq.c b/arch/mips/loongson64/loongson-3/irq.c
+index cbeb20f9fc95..5605061f5f98 100644
+--- a/arch/mips/loongson64/loongson-3/irq.c
++++ b/arch/mips/loongson64/loongson-3/irq.c
+@@ -96,51 +96,8 @@ void mach_irq_dispatch(unsigned int pending)
+ 	}
+ }
+ 
+-static struct irqaction cascade_irqaction = {
+-	.handler = no_action,
+-	.flags = IRQF_NO_SUSPEND,
+-	.name = "cascade",
+-};
+-
+-static inline void mask_loongson_irq(struct irq_data *d)
+-{
+-	clear_c0_status(0x100 << (d->irq - MIPS_CPU_IRQ_BASE));
+-	irq_disable_hazard();
+-
+-	/* Workaround: UART IRQ may deliver to any core */
+-	if (d->irq == LOONGSON_UART_IRQ) {
+-		int cpu = smp_processor_id();
+-		int node_id = cpu_logical_map(cpu) / loongson_sysconf.cores_per_node;
+-		int core_id = cpu_logical_map(cpu) % loongson_sysconf.cores_per_node;
+-		u64 intenclr_addr = smp_group[node_id] |
+-			(u64)(&LOONGSON_INT_ROUTER_INTENCLR);
+-		u64 introuter_lpc_addr = smp_group[node_id] |
+-			(u64)(&LOONGSON_INT_ROUTER_LPC);
+-
+-		*(volatile u32 *)intenclr_addr = 1 << 10;
+-		*(volatile u8 *)introuter_lpc_addr = 0x10 + (1<<core_id);
+-	}
+-}
+-
+-static inline void unmask_loongson_irq(struct irq_data *d)
+-{
+-	/* Workaround: UART IRQ may deliver to any core */
+-	if (d->irq == LOONGSON_UART_IRQ) {
+-		int cpu = smp_processor_id();
+-		int node_id = cpu_logical_map(cpu) / loongson_sysconf.cores_per_node;
+-		int core_id = cpu_logical_map(cpu) % loongson_sysconf.cores_per_node;
+-		u64 intenset_addr = smp_group[node_id] |
+-			(u64)(&LOONGSON_INT_ROUTER_INTENSET);
+-		u64 introuter_lpc_addr = smp_group[node_id] |
+-			(u64)(&LOONGSON_INT_ROUTER_LPC);
+-
+-		*(volatile u32 *)intenset_addr = 1 << 10;
+-		*(volatile u8 *)introuter_lpc_addr = 0x10 + (1<<core_id);
+-	}
+-
+-	set_c0_status(0x100 << (d->irq - MIPS_CPU_IRQ_BASE));
+-	irq_enable_hazard();
+-}
++static inline void mask_loongson_irq(struct irq_data *d) { }
++static inline void unmask_loongson_irq(struct irq_data *d) { }
+ 
+  /* For MIPS IRQs which shared by all cores */
+ static struct irq_chip loongson_irq_chip = {
+@@ -183,12 +140,11 @@ void __init mach_init_irq(void)
+ 	chip->irq_set_affinity = plat_set_irq_affinity;
+ 
+ 	irq_set_chip_and_handler(LOONGSON_UART_IRQ,
+-			&loongson_irq_chip, handle_level_irq);
+-
+-	/* setup HT1 irq */
+-	setup_irq(LOONGSON_HT1_IRQ, &cascade_irqaction);
++			&loongson_irq_chip, handle_percpu_irq);
++	irq_set_chip_and_handler(LOONGSON_BRIDGE_IRQ,
++			&loongson_irq_chip, handle_percpu_irq);
+ 
+-	set_c0_status(STATUSF_IP2 | STATUSF_IP6);
++	set_c0_status(STATUSF_IP2 | STATUSF_IP3 | STATUSF_IP6);
+ }
+ 
+ #ifdef CONFIG_HOTPLUG_CPU
+diff --git a/arch/mips/pci/pci-legacy.c b/arch/mips/pci/pci-legacy.c
+index 0c65c38e05d6..1ae6bc414e2b 100644
+--- a/arch/mips/pci/pci-legacy.c
++++ b/arch/mips/pci/pci-legacy.c
+@@ -127,8 +127,12 @@ static void pcibios_scanbus(struct pci_controller *hose)
+ 	if (pci_has_flag(PCI_PROBE_ONLY)) {
+ 		pci_bus_claim_resources(bus);
+ 	} else {
++		struct pci_bus *child;
++
+ 		pci_bus_size_bridges(bus);
+ 		pci_bus_assign_resources(bus);
++		list_for_each_entry(child, &bus->children, node)
++			pcie_bus_configure_settings(child);
+ 	}
+ 	pci_bus_add_devices(bus);
+ }
+diff --git a/arch/powerpc/boot/crt0.S b/arch/powerpc/boot/crt0.S
+index dcf2f15e6797..32dfe6d083f3 100644
+--- a/arch/powerpc/boot/crt0.S
++++ b/arch/powerpc/boot/crt0.S
+@@ -47,8 +47,10 @@ p_end:		.long	_end
+ p_pstack:	.long	_platform_stack_top
+ #endif
+ 
+-	.weak	_zimage_start
+ 	.globl	_zimage_start
++	/* Clang appears to require the .weak directive to be after the symbol
++	 * is defined. See https://bugs.llvm.org/show_bug.cgi?id=38921  */
++	.weak	_zimage_start
+ _zimage_start:
+ 	.globl	_zimage_start_lib
+ _zimage_start_lib:
+diff --git a/arch/powerpc/kernel/eeh.c b/arch/powerpc/kernel/eeh.c
+index 116000b45531..45322b37669a 100644
+--- a/arch/powerpc/kernel/eeh.c
++++ b/arch/powerpc/kernel/eeh.c
+@@ -169,6 +169,11 @@ static size_t eeh_dump_dev_log(struct eeh_dev *edev, char *buf, size_t len)
+ 	int n = 0, l = 0;
+ 	char buffer[128];
+ 
++	if (!pdn) {
++		pr_warn("EEH: Note: No error log for absent device.\n");
++		return 0;
++	}
++
+ 	n += scnprintf(buf+n, len-n, "%04x:%02x:%02x.%01x\n",
+ 		       pdn->phb->global_number, pdn->busno,
+ 		       PCI_SLOT(pdn->devfn), PCI_FUNC(pdn->devfn));
+diff --git a/arch/powerpc/kernel/module_64.c b/arch/powerpc/kernel/module_64.c
+index 2a1b1273a312..4d8f6291b766 100644
+--- a/arch/powerpc/kernel/module_64.c
++++ b/arch/powerpc/kernel/module_64.c
+@@ -656,7 +656,14 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
+ 
+ 		case R_PPC64_REL32:
+ 			/* 32 bits relative (used by relative exception tables) */
+-			*(u32 *)location = value - (unsigned long)location;
++			/* Convert value to relative */
++			value -= (unsigned long)location;
++			if (value + 0x80000000 > 0xffffffff) {
++				pr_err("%s: REL32 %li out of range!\n",
++				       me->name, (long int)value);
++				return -ENOEXEC;
++			}
++			*(u32 *)location = value;
+ 			break;
+ 
+ 		case R_PPC64_TOCSAVE:
+diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
+index ac2e5e56a9f0..a5f2b7593976 100644
+--- a/arch/powerpc/kernel/traps.c
++++ b/arch/powerpc/kernel/traps.c
+@@ -694,12 +694,17 @@ void machine_check_exception(struct pt_regs *regs)
+ 	if (check_io_access(regs))
+ 		goto bail;
+ 
+-	die("Machine check", regs, SIGBUS);
+-
+ 	/* Must die if the interrupt is not recoverable */
+ 	if (!(regs->msr & MSR_RI))
+ 		nmi_panic(regs, "Unrecoverable Machine check");
+ 
++	if (!nested)
++		nmi_exit();
++
++	die("Machine check", regs, SIGBUS);
++
++	return;
++
+ bail:
+ 	if (!nested)
+ 		nmi_exit();
+diff --git a/arch/powerpc/mm/dump_linuxpagetables.c b/arch/powerpc/mm/dump_linuxpagetables.c
+index c9282d27b203..31c1c61afaa4 100644
+--- a/arch/powerpc/mm/dump_linuxpagetables.c
++++ b/arch/powerpc/mm/dump_linuxpagetables.c
+@@ -422,12 +422,13 @@ static void walk_pagetables(struct pg_state *st)
+ 	unsigned int i;
+ 	unsigned long addr;
+ 
++	addr = st->start_address;
++
+ 	/*
+ 	 * Traverse the linux pagetable structure and dump pages that are in
+ 	 * the hash pagetable.
+ 	 */
+-	for (i = 0; i < PTRS_PER_PGD; i++, pgd++) {
+-		addr = KERN_VIRT_START + i * PGDIR_SIZE;
++	for (i = 0; i < PTRS_PER_PGD; i++, pgd++, addr += PGDIR_SIZE) {
+ 		if (!pgd_none(*pgd) && !pgd_huge(*pgd))
+ 			/* pgd exists */
+ 			walk_pud(st, pgd, addr);
+@@ -476,9 +477,14 @@ static int ptdump_show(struct seq_file *m, void *v)
+ {
+ 	struct pg_state st = {
+ 		.seq = m,
+-		.start_address = KERN_VIRT_START,
+ 		.marker = address_markers,
+ 	};
++
++	if (radix_enabled())
++		st.start_address = PAGE_OFFSET;
++	else
++		st.start_address = KERN_VIRT_START;
++
+ 	/* Traverse kernel page tables */
+ 	walk_pagetables(&st);
+ 	note_page(&st, 0, 0, 0);
+diff --git a/arch/powerpc/mm/hugetlbpage.c b/arch/powerpc/mm/hugetlbpage.c
+index 4c9e5f9c7a44..e2d929ddad7f 100644
+--- a/arch/powerpc/mm/hugetlbpage.c
++++ b/arch/powerpc/mm/hugetlbpage.c
+@@ -19,6 +19,7 @@
+ #include <linux/moduleparam.h>
+ #include <linux/swap.h>
+ #include <linux/swapops.h>
++#include <linux/kmemleak.h>
+ #include <asm/pgtable.h>
+ #include <asm/pgalloc.h>
+ #include <asm/tlb.h>
+@@ -110,6 +111,8 @@ static int __hugepte_alloc(struct mm_struct *mm, hugepd_t *hpdp,
+ 		for (i = i - 1 ; i >= 0; i--, hpdp--)
+ 			*hpdp = __hugepd(0);
+ 		kmem_cache_free(cachep, new);
++	} else {
++		kmemleak_ignore(new);
+ 	}
+ 	spin_unlock(&mm->page_table_lock);
+ 	return 0;
+diff --git a/arch/powerpc/mm/tlb_nohash.c b/arch/powerpc/mm/tlb_nohash.c
+index bfc4a0869609..2ae18e90e0ba 100644
+--- a/arch/powerpc/mm/tlb_nohash.c
++++ b/arch/powerpc/mm/tlb_nohash.c
+@@ -500,6 +500,9 @@ static void setup_page_sizes(void)
+ 		for (psize = 0; psize < MMU_PAGE_COUNT; ++psize) {
+ 			struct mmu_psize_def *def = &mmu_psize_defs[psize];
+ 
++			if (!def->shift)
++				continue;
++
+ 			if (tlb1ps & (1U << (def->shift - 10))) {
+ 				def->flags |= MMU_PAGE_SIZE_DIRECT;
+ 
+diff --git a/arch/powerpc/platforms/powernv/memtrace.c b/arch/powerpc/platforms/powernv/memtrace.c
+index fc222a0c2ac4..c9a6d4f3403c 100644
+--- a/arch/powerpc/platforms/powernv/memtrace.c
++++ b/arch/powerpc/platforms/powernv/memtrace.c
+@@ -119,17 +119,15 @@ static bool memtrace_offline_pages(u32 nid, u64 start_pfn, u64 nr_pages)
+ 	walk_memory_range(start_pfn, end_pfn, (void *)MEM_OFFLINE,
+ 			  change_memblock_state);
+ 
+-	lock_device_hotplug();
+-	remove_memory(nid, start_pfn << PAGE_SHIFT, nr_pages << PAGE_SHIFT);
+-	unlock_device_hotplug();
+ 
+ 	return true;
+ }
+ 
+ static u64 memtrace_alloc_node(u32 nid, u64 size)
+ {
+-	u64 start_pfn, end_pfn, nr_pages;
++	u64 start_pfn, end_pfn, nr_pages, pfn;
+ 	u64 base_pfn;
++	u64 bytes = memory_block_size_bytes();
+ 
+ 	if (!NODE_DATA(nid) || !node_spanned_pages(nid))
+ 		return 0;
+@@ -142,8 +140,21 @@ static u64 memtrace_alloc_node(u32 nid, u64 size)
+ 	end_pfn = round_down(end_pfn - nr_pages, nr_pages);
+ 
+ 	for (base_pfn = end_pfn; base_pfn > start_pfn; base_pfn -= nr_pages) {
+-		if (memtrace_offline_pages(nid, base_pfn, nr_pages) == true)
++		if (memtrace_offline_pages(nid, base_pfn, nr_pages) == true) {
++			/*
++			 * Remove memory in memory block size chunks so that
++			 * iomem resources are always split to the same size and
++			 * we never try to remove memory that spans two iomem
++			 * resources.
++			 */
++			lock_device_hotplug();
++			end_pfn = base_pfn + nr_pages;
++			for (pfn = base_pfn; pfn < end_pfn; pfn += bytes>> PAGE_SHIFT) {
++				remove_memory(nid, pfn << PAGE_SHIFT, bytes);
++			}
++			unlock_device_hotplug();
+ 			return base_pfn << PAGE_SHIFT;
++		}
+ 	}
+ 
+ 	return 0;
+diff --git a/arch/x86/kernel/cpu/mshyperv.c b/arch/x86/kernel/cpu/mshyperv.c
+index 85eb5fc180c8..c0201b11e9e2 100644
+--- a/arch/x86/kernel/cpu/mshyperv.c
++++ b/arch/x86/kernel/cpu/mshyperv.c
+@@ -20,6 +20,7 @@
+ #include <linux/interrupt.h>
+ #include <linux/irq.h>
+ #include <linux/kexec.h>
++#include <linux/i8253.h>
+ #include <asm/processor.h>
+ #include <asm/hypervisor.h>
+ #include <asm/hyperv.h>
+@@ -243,6 +244,16 @@ static void __init ms_hyperv_init_platform(void)
+ 	if (efi_enabled(EFI_BOOT))
+ 		x86_platform.get_nmi_reason = hv_get_nmi_reason;
+ 
++	/*
++	 * Hyper-V VMs have a PIT emulation quirk such that zeroing the
++	 * counter register during PIT shutdown restarts the PIT. So it
++	 * continues to interrupt @18.2 HZ. Setting i8253_clear_counter
++	 * to false tells pit_shutdown() not to zero the counter so that
++	 * the PIT really is shutdown. Generation 2 VMs don't have a PIT,
++	 * and setting this value has no effect.
++	 */
++	i8253_clear_counter_on_shutdown = false;
++
+ #if IS_ENABLED(CONFIG_HYPERV)
+ 	/*
+ 	 * Setup the hook to get control post apic initialization.
+diff --git a/arch/x86/kernel/cpu/vmware.c b/arch/x86/kernel/cpu/vmware.c
+index 8e005329648b..d805202c63cd 100644
+--- a/arch/x86/kernel/cpu/vmware.c
++++ b/arch/x86/kernel/cpu/vmware.c
+@@ -77,7 +77,7 @@ static __init int setup_vmw_sched_clock(char *s)
+ }
+ early_param("no-vmw-sched-clock", setup_vmw_sched_clock);
+ 
+-static unsigned long long vmware_sched_clock(void)
++static unsigned long long notrace vmware_sched_clock(void)
+ {
+ 	unsigned long long ns;
+ 
+diff --git a/arch/x86/um/shared/sysdep/ptrace_32.h b/arch/x86/um/shared/sysdep/ptrace_32.h
+index b94a108de1dc..ae00d22bce02 100644
+--- a/arch/x86/um/shared/sysdep/ptrace_32.h
++++ b/arch/x86/um/shared/sysdep/ptrace_32.h
+@@ -10,20 +10,10 @@
+ 
+ static inline void update_debugregs(int seq) {}
+ 
+-/* syscall emulation path in ptrace */
+-
+-#ifndef PTRACE_SYSEMU
+-#define PTRACE_SYSEMU 31
+-#endif
+-
+ void set_using_sysemu(int value);
+ int get_using_sysemu(void);
+ extern int sysemu_supported;
+ 
+-#ifndef PTRACE_SYSEMU_SINGLESTEP
+-#define PTRACE_SYSEMU_SINGLESTEP 32
+-#endif
+-
+ #define UPT_SYSCALL_ARG1(r) UPT_BX(r)
+ #define UPT_SYSCALL_ARG2(r) UPT_CX(r)
+ #define UPT_SYSCALL_ARG3(r) UPT_DX(r)
+diff --git a/arch/xtensa/boot/Makefile b/arch/xtensa/boot/Makefile
+index 53e4178711e6..8c20a7965bda 100644
+--- a/arch/xtensa/boot/Makefile
++++ b/arch/xtensa/boot/Makefile
+@@ -34,7 +34,7 @@ boot-elf boot-redboot: $(addprefix $(obj)/,$(subdir-y)) \
+ 		       $(addprefix $(obj)/,$(host-progs))
+ 	$(Q)$(MAKE) $(build)=$(obj)/$@ $(MAKECMDGOALS)
+ 
+-OBJCOPYFLAGS = --strip-all -R .comment -R .note.gnu.build-id -O binary
++OBJCOPYFLAGS = --strip-all -R .comment -R .notes -O binary
+ 
+ vmlinux.bin: vmlinux FORCE
+ 	$(call if_changed,objcopy)
+diff --git a/arch/xtensa/include/asm/processor.h b/arch/xtensa/include/asm/processor.h
+index 5b0027d4ecc0..a39cd81b741a 100644
+--- a/arch/xtensa/include/asm/processor.h
++++ b/arch/xtensa/include/asm/processor.h
+@@ -24,7 +24,11 @@
+ # error Linux requires the Xtensa Windowed Registers Option.
+ #endif
+ 
+-#define ARCH_SLAB_MINALIGN	XCHAL_DATA_WIDTH
++/* Xtensa ABI requires stack alignment to be at least 16 */
++
++#define STACK_ALIGN (XCHAL_DATA_WIDTH > 16 ? XCHAL_DATA_WIDTH : 16)
++
++#define ARCH_SLAB_MINALIGN STACK_ALIGN
+ 
+ /*
+  * User space process size: 1 GB.
+diff --git a/arch/xtensa/kernel/head.S b/arch/xtensa/kernel/head.S
+index 23ce62e60435..27c8e07ace43 100644
+--- a/arch/xtensa/kernel/head.S
++++ b/arch/xtensa/kernel/head.S
+@@ -88,9 +88,12 @@ _SetupMMU:
+ 	initialize_mmu
+ #if defined(CONFIG_MMU) && XCHAL_HAVE_PTP_MMU && XCHAL_HAVE_SPANNING_WAY
+ 	rsr	a2, excsave1
+-	movi	a3, 0x08000000
++	movi	a3, XCHAL_KSEG_PADDR
++	bltu	a2, a3, 1f
++	sub	a2, a2, a3
++	movi	a3, XCHAL_KSEG_SIZE
+ 	bgeu	a2, a3, 1f
+-	movi	a3, 0xd0000000
++	movi	a3, XCHAL_KSEG_CACHED_VADDR
+ 	add	a2, a2, a3
+ 	wsr	a2, excsave1
+ 1:
+diff --git a/arch/xtensa/kernel/vmlinux.lds.S b/arch/xtensa/kernel/vmlinux.lds.S
+index 162c77e53ca8..3e04845a15e6 100644
+--- a/arch/xtensa/kernel/vmlinux.lds.S
++++ b/arch/xtensa/kernel/vmlinux.lds.S
+@@ -146,6 +146,7 @@ SECTIONS
+   .fixup   : { *(.fixup) }
+ 
+   EXCEPTION_TABLE(16)
++  NOTES
+   /* Data section */
+ 
+   _sdata = .;
+diff --git a/block/blk-core.c b/block/blk-core.c
+index 6aa2bc4e9652..0b14aebfd1a8 100644
+--- a/block/blk-core.c
++++ b/block/blk-core.c
+@@ -671,9 +671,8 @@ void blk_cleanup_queue(struct request_queue *q)
+ 	 * dispatch may still be in-progress since we dispatch requests
+ 	 * from more than one contexts.
+ 	 *
+-	 * No need to quiesce queue if it isn't initialized yet since
+-	 * blk_freeze_queue() should be enough for cases of passthrough
+-	 * request.
++	 * We rely on driver to deal with the race in case that queue
++	 * initialization isn't done.
+ 	 */
+ 	if (q->mq_ops && blk_queue_init_done(q))
+ 		blk_mq_quiesce_queue(q);
+diff --git a/crypto/crypto_user.c b/crypto/crypto_user.c
+index 0dbe2be7f783..b5758768920b 100644
+--- a/crypto/crypto_user.c
++++ b/crypto/crypto_user.c
+@@ -83,7 +83,7 @@ static int crypto_report_cipher(struct sk_buff *skb, struct crypto_alg *alg)
+ {
+ 	struct crypto_report_cipher rcipher;
+ 
+-	strlcpy(rcipher.type, "cipher", sizeof(rcipher.type));
++	strncpy(rcipher.type, "cipher", sizeof(rcipher.type));
+ 
+ 	rcipher.blocksize = alg->cra_blocksize;
+ 	rcipher.min_keysize = alg->cra_cipher.cia_min_keysize;
+@@ -102,7 +102,7 @@ static int crypto_report_comp(struct sk_buff *skb, struct crypto_alg *alg)
+ {
+ 	struct crypto_report_comp rcomp;
+ 
+-	strlcpy(rcomp.type, "compression", sizeof(rcomp.type));
++	strncpy(rcomp.type, "compression", sizeof(rcomp.type));
+ 	if (nla_put(skb, CRYPTOCFGA_REPORT_COMPRESS,
+ 		    sizeof(struct crypto_report_comp), &rcomp))
+ 		goto nla_put_failure;
+@@ -116,7 +116,7 @@ static int crypto_report_acomp(struct sk_buff *skb, struct crypto_alg *alg)
+ {
+ 	struct crypto_report_acomp racomp;
+ 
+-	strlcpy(racomp.type, "acomp", sizeof(racomp.type));
++	strncpy(racomp.type, "acomp", sizeof(racomp.type));
+ 
+ 	if (nla_put(skb, CRYPTOCFGA_REPORT_ACOMP,
+ 		    sizeof(struct crypto_report_acomp), &racomp))
+@@ -131,7 +131,7 @@ static int crypto_report_akcipher(struct sk_buff *skb, struct crypto_alg *alg)
+ {
+ 	struct crypto_report_akcipher rakcipher;
+ 
+-	strlcpy(rakcipher.type, "akcipher", sizeof(rakcipher.type));
++	strncpy(rakcipher.type, "akcipher", sizeof(rakcipher.type));
+ 
+ 	if (nla_put(skb, CRYPTOCFGA_REPORT_AKCIPHER,
+ 		    sizeof(struct crypto_report_akcipher), &rakcipher))
+@@ -146,7 +146,7 @@ static int crypto_report_kpp(struct sk_buff *skb, struct crypto_alg *alg)
+ {
+ 	struct crypto_report_kpp rkpp;
+ 
+-	strlcpy(rkpp.type, "kpp", sizeof(rkpp.type));
++	strncpy(rkpp.type, "kpp", sizeof(rkpp.type));
+ 
+ 	if (nla_put(skb, CRYPTOCFGA_REPORT_KPP,
+ 		    sizeof(struct crypto_report_kpp), &rkpp))
+@@ -160,10 +160,10 @@ nla_put_failure:
+ static int crypto_report_one(struct crypto_alg *alg,
+ 			     struct crypto_user_alg *ualg, struct sk_buff *skb)
+ {
+-	strlcpy(ualg->cru_name, alg->cra_name, sizeof(ualg->cru_name));
+-	strlcpy(ualg->cru_driver_name, alg->cra_driver_name,
++	strncpy(ualg->cru_name, alg->cra_name, sizeof(ualg->cru_name));
++	strncpy(ualg->cru_driver_name, alg->cra_driver_name,
+ 		sizeof(ualg->cru_driver_name));
+-	strlcpy(ualg->cru_module_name, module_name(alg->cra_module),
++	strncpy(ualg->cru_module_name, module_name(alg->cra_module),
+ 		sizeof(ualg->cru_module_name));
+ 
+ 	ualg->cru_type = 0;
+@@ -176,7 +176,7 @@ static int crypto_report_one(struct crypto_alg *alg,
+ 	if (alg->cra_flags & CRYPTO_ALG_LARVAL) {
+ 		struct crypto_report_larval rl;
+ 
+-		strlcpy(rl.type, "larval", sizeof(rl.type));
++		strncpy(rl.type, "larval", sizeof(rl.type));
+ 		if (nla_put(skb, CRYPTOCFGA_REPORT_LARVAL,
+ 			    sizeof(struct crypto_report_larval), &rl))
+ 			goto nla_put_failure;
+diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c
+index 8cfa10ab7abc..930b49606a8c 100644
+--- a/drivers/cdrom/cdrom.c
++++ b/drivers/cdrom/cdrom.c
+@@ -2441,7 +2441,7 @@ static int cdrom_ioctl_select_disc(struct cdrom_device_info *cdi,
+ 		return -ENOSYS;
+ 
+ 	if (arg != CDSL_CURRENT && arg != CDSL_NONE) {
+-		if ((int)arg >= cdi->capacity)
++		if (arg >= cdi->capacity)
+ 			return -EINVAL;
+ 	}
+ 
+diff --git a/drivers/clk/at91/clk-pll.c b/drivers/clk/at91/clk-pll.c
+index 72b6091eb7b9..dc7fbc796cb6 100644
+--- a/drivers/clk/at91/clk-pll.c
++++ b/drivers/clk/at91/clk-pll.c
+@@ -133,6 +133,9 @@ static unsigned long clk_pll_recalc_rate(struct clk_hw *hw,
+ {
+ 	struct clk_pll *pll = to_clk_pll(hw);
+ 
++	if (!pll->div || !pll->mul)
++		return 0;
++
+ 	return (parent_rate / pll->div) * (pll->mul + 1);
+ }
+ 
+diff --git a/drivers/clk/clk-s2mps11.c b/drivers/clk/clk-s2mps11.c
+index fbaa84a33c46..14071a57c926 100644
+--- a/drivers/clk/clk-s2mps11.c
++++ b/drivers/clk/clk-s2mps11.c
+@@ -245,6 +245,36 @@ static const struct platform_device_id s2mps11_clk_id[] = {
+ };
+ MODULE_DEVICE_TABLE(platform, s2mps11_clk_id);
+ 
++#ifdef CONFIG_OF
++/*
++ * Device is instantiated through parent MFD device and device matching is done
++ * through platform_device_id.
++ *
++ * However if device's DT node contains proper clock compatible and driver is
++ * built as a module, then the *module* matching will be done trough DT aliases.
++ * This requires of_device_id table.  In the same time this will not change the
++ * actual *device* matching so do not add .of_match_table.
++ */
++static const struct of_device_id s2mps11_dt_match[] = {
++	{
++		.compatible = "samsung,s2mps11-clk",
++		.data = (void *)S2MPS11X,
++	}, {
++		.compatible = "samsung,s2mps13-clk",
++		.data = (void *)S2MPS13X,
++	}, {
++		.compatible = "samsung,s2mps14-clk",
++		.data = (void *)S2MPS14X,
++	}, {
++		.compatible = "samsung,s5m8767-clk",
++		.data = (void *)S5M8767X,
++	}, {
++		/* Sentinel */
++	},
++};
++MODULE_DEVICE_TABLE(of, s2mps11_dt_match);
++#endif
++
+ static struct platform_driver s2mps11_clk_driver = {
+ 	.driver = {
+ 		.name  = "s2mps11-clk",
+diff --git a/drivers/clk/hisilicon/reset.c b/drivers/clk/hisilicon/reset.c
+index 2a5015c736ce..43e82fa64422 100644
+--- a/drivers/clk/hisilicon/reset.c
++++ b/drivers/clk/hisilicon/reset.c
+@@ -109,9 +109,8 @@ struct hisi_reset_controller *hisi_reset_init(struct platform_device *pdev)
+ 		return NULL;
+ 
+ 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+-	rstc->membase = devm_ioremap(&pdev->dev,
+-				res->start, resource_size(res));
+-	if (!rstc->membase)
++	rstc->membase = devm_ioremap_resource(&pdev->dev, res);
++	if (IS_ERR(rstc->membase))
+ 		return NULL;
+ 
+ 	spin_lock_init(&rstc->lock);
+diff --git a/drivers/clk/mvebu/clk-corediv.c b/drivers/clk/mvebu/clk-corediv.c
+index 8491979f4096..68f05c53d40e 100644
+--- a/drivers/clk/mvebu/clk-corediv.c
++++ b/drivers/clk/mvebu/clk-corediv.c
+@@ -72,7 +72,7 @@ static const struct clk_corediv_desc mvebu_corediv_desc[] = {
+ };
+ 
+ static const struct clk_corediv_desc mv98dx3236_corediv_desc[] = {
+-	{ .mask = 0x0f, .offset = 6, .fieldbit = 26 }, /* NAND clock */
++	{ .mask = 0x0f, .offset = 6, .fieldbit = 27 }, /* NAND clock */
+ };
+ 
+ #define to_corediv_clk(p) container_of(p, struct clk_corediv, hw)
+diff --git a/drivers/clk/rockchip/clk-ddr.c b/drivers/clk/rockchip/clk-ddr.c
+index e8075359366b..ebce5260068b 100644
+--- a/drivers/clk/rockchip/clk-ddr.c
++++ b/drivers/clk/rockchip/clk-ddr.c
+@@ -80,16 +80,12 @@ static long rockchip_ddrclk_sip_round_rate(struct clk_hw *hw,
+ static u8 rockchip_ddrclk_get_parent(struct clk_hw *hw)
+ {
+ 	struct rockchip_ddrclk *ddrclk = to_rockchip_ddrclk_hw(hw);
+-	int num_parents = clk_hw_get_num_parents(hw);
+ 	u32 val;
+ 
+ 	val = clk_readl(ddrclk->reg_base +
+ 			ddrclk->mux_offset) >> ddrclk->mux_shift;
+ 	val &= GENMASK(ddrclk->mux_width - 1, 0);
+ 
+-	if (val >= num_parents)
+-		return -EINVAL;
+-
+ 	return val;
+ }
+ 
+diff --git a/drivers/clocksource/i8253.c b/drivers/clocksource/i8253.c
+index 9c38895542f4..d4350bb10b83 100644
+--- a/drivers/clocksource/i8253.c
++++ b/drivers/clocksource/i8253.c
+@@ -20,6 +20,13 @@
+ DEFINE_RAW_SPINLOCK(i8253_lock);
+ EXPORT_SYMBOL(i8253_lock);
+ 
++/*
++ * Handle PIT quirk in pit_shutdown() where zeroing the counter register
++ * restarts the PIT, negating the shutdown. On platforms with the quirk,
++ * platform specific code can set this to false.
++ */
++bool i8253_clear_counter_on_shutdown __ro_after_init = true;
++
+ #ifdef CONFIG_CLKSRC_I8253
+ /*
+  * Since the PIT overflows every tick, its not very useful
+@@ -109,8 +116,11 @@ static int pit_shutdown(struct clock_event_device *evt)
+ 	raw_spin_lock(&i8253_lock);
+ 
+ 	outb_p(0x30, PIT_MODE);
+-	outb_p(0, PIT_CH0);
+-	outb_p(0, PIT_CH0);
++
++	if (i8253_clear_counter_on_shutdown) {
++		outb_p(0, PIT_CH0);
++		outb_p(0, PIT_CH0);
++	}
+ 
+ 	raw_spin_unlock(&i8253_lock);
+ 	return 0;
+diff --git a/drivers/firmware/efi/libstub/fdt.c b/drivers/firmware/efi/libstub/fdt.c
+index 8830fa601e45..0c0d2312f4a8 100644
+--- a/drivers/firmware/efi/libstub/fdt.c
++++ b/drivers/firmware/efi/libstub/fdt.c
+@@ -158,6 +158,10 @@ static efi_status_t update_fdt(efi_system_table_t *sys_table, void *orig_fdt,
+ 			return efi_status;
+ 		}
+ 	}
++
++	/* shrink the FDT back to its minimum size */
++	fdt_pack(fdt);
++
+ 	return EFI_SUCCESS;
+ 
+ fdt_set_fail:
+diff --git a/drivers/gpio/gpio-brcmstb.c b/drivers/gpio/gpio-brcmstb.c
+index dd0308cc8bb0..bfc9b1afa388 100644
+--- a/drivers/gpio/gpio-brcmstb.c
++++ b/drivers/gpio/gpio-brcmstb.c
+@@ -63,6 +63,21 @@ brcmstb_gpio_gc_to_priv(struct gpio_chip *gc)
+ 	return bank->parent_priv;
+ }
+ 
++static unsigned long
++brcmstb_gpio_get_active_irqs(struct brcmstb_gpio_bank *bank)
++{
++	void __iomem *reg_base = bank->parent_priv->reg_base;
++	unsigned long status;
++	unsigned long flags;
++
++	spin_lock_irqsave(&bank->gc.bgpio_lock, flags);
++	status = bank->gc.read_reg(reg_base + GIO_STAT(bank->id)) &
++		 bank->gc.read_reg(reg_base + GIO_MASK(bank->id));
++	spin_unlock_irqrestore(&bank->gc.bgpio_lock, flags);
++
++	return status;
++}
++
+ static void brcmstb_gpio_set_imask(struct brcmstb_gpio_bank *bank,
+ 		unsigned int offset, bool enable)
+ {
+@@ -205,11 +220,8 @@ static void brcmstb_gpio_irq_bank_handler(struct brcmstb_gpio_bank *bank)
+ 	struct irq_domain *irq_domain = bank->gc.irqdomain;
+ 	void __iomem *reg_base = priv->reg_base;
+ 	unsigned long status;
+-	unsigned long flags;
+ 
+-	spin_lock_irqsave(&bank->gc.bgpio_lock, flags);
+-	while ((status = bank->gc.read_reg(reg_base + GIO_STAT(bank->id)) &
+-			 bank->gc.read_reg(reg_base + GIO_MASK(bank->id)))) {
++	while ((status = brcmstb_gpio_get_active_irqs(bank))) {
+ 		int bit;
+ 
+ 		for_each_set_bit(bit, &status, 32) {
+@@ -224,7 +236,6 @@ static void brcmstb_gpio_irq_bank_handler(struct brcmstb_gpio_bank *bank)
+ 			generic_handle_irq(irq_find_mapping(irq_domain, bit));
+ 		}
+ 	}
+-	spin_unlock_irqrestore(&bank->gc.bgpio_lock, flags);
+ }
+ 
+ /* Each UPG GIO block has one IRQ for all banks */
+diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c
+index 36c763310df5..684769c9a48e 100644
+--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c
++++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c
+@@ -247,6 +247,7 @@ amdgpu_ucode_get_load_type(struct amdgpu_device *adev, int load_type)
+ 	case CHIP_PITCAIRN:
+ 	case CHIP_VERDE:
+ 	case CHIP_OLAND:
++	case CHIP_HAINAN:
+ 		return AMDGPU_FW_LOAD_DIRECT;
+ #endif
+ #ifdef CONFIG_DRM_AMDGPU_CIK
+diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
+index c022ab6e84bd..2a4cf6837324 100644
+--- a/drivers/gpu/drm/drm_dp_mst_topology.c
++++ b/drivers/gpu/drm/drm_dp_mst_topology.c
+@@ -1232,6 +1232,9 @@ static struct drm_dp_mst_branch *drm_dp_get_mst_branch_device(struct drm_dp_mst_
+ 	mutex_lock(&mgr->lock);
+ 	mstb = mgr->mst_primary;
+ 
++	if (!mstb)
++		goto out;
++
+ 	for (i = 0; i < lct - 1; i++) {
+ 		int shift = (i % 2) ? 0 : 4;
+ 		int port_num = (rad[i / 2] >> shift) & 0xf;
+diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_fbdev.c b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_fbdev.c
+index b92595c477ef..8bd29075ae4e 100644
+--- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_fbdev.c
++++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_fbdev.c
+@@ -122,6 +122,7 @@ static int hibmc_drm_fb_create(struct drm_fb_helper *helper,
+ 	hi_fbdev->fb = hibmc_framebuffer_init(priv->dev, &mode_cmd, gobj);
+ 	if (IS_ERR(hi_fbdev->fb)) {
+ 		ret = PTR_ERR(hi_fbdev->fb);
++		hi_fbdev->fb = NULL;
+ 		DRM_ERROR("failed to initialize framebuffer: %d\n", ret);
+ 		goto out_release_fbi;
+ 	}
+diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
+index f354cfe63f7b..1f19e6d9a717 100644
+--- a/drivers/gpu/drm/i915/i915_gem.c
++++ b/drivers/gpu/drm/i915/i915_gem.c
+@@ -980,11 +980,7 @@ i915_gem_shmem_pread(struct drm_i915_gem_object *obj,
+ 	offset = offset_in_page(args->offset);
+ 	for (idx = args->offset >> PAGE_SHIFT; remain; idx++) {
+ 		struct page *page = i915_gem_object_get_page(obj, idx);
+-		int length;
+-
+-		length = remain;
+-		if (offset + length > PAGE_SIZE)
+-			length = PAGE_SIZE - offset;
++		unsigned int length = min_t(u64, remain, PAGE_SIZE - offset);
+ 
+ 		ret = shmem_pread(page, offset, length, user_data,
+ 				  page_to_phys(page) & obj_do_bit17_swizzling,
+@@ -1406,11 +1402,7 @@ i915_gem_shmem_pwrite(struct drm_i915_gem_object *obj,
+ 	offset = offset_in_page(args->offset);
+ 	for (idx = args->offset >> PAGE_SHIFT; remain; idx++) {
+ 		struct page *page = i915_gem_object_get_page(obj, idx);
+-		int length;
+-
+-		length = remain;
+-		if (offset + length > PAGE_SIZE)
+-			length = PAGE_SIZE - offset;
++		unsigned int length = min_t(u64, remain, PAGE_SIZE - offset);
+ 
+ 		ret = shmem_pwrite(page, offset, length, user_data,
+ 				   page_to_phys(page) & obj_do_bit17_swizzling,
+diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.h b/drivers/gpu/drm/i915/i915_gem_gtt.h
+index b4e3aa7c0ce1..0dbbe840f5f0 100644
+--- a/drivers/gpu/drm/i915/i915_gem_gtt.h
++++ b/drivers/gpu/drm/i915/i915_gem_gtt.h
+@@ -584,20 +584,20 @@ int i915_gem_gtt_insert(struct i915_address_space *vm,
+ 			u64 start, u64 end, unsigned int flags);
+ 
+ /* Flags used by pin/bind&friends. */
+-#define PIN_NONBLOCK		BIT(0)
+-#define PIN_MAPPABLE		BIT(1)
+-#define PIN_ZONE_4G		BIT(2)
+-#define PIN_NONFAULT		BIT(3)
+-#define PIN_NOEVICT		BIT(4)
+-
+-#define PIN_MBZ			BIT(5) /* I915_VMA_PIN_OVERFLOW */
+-#define PIN_GLOBAL		BIT(6) /* I915_VMA_GLOBAL_BIND */
+-#define PIN_USER		BIT(7) /* I915_VMA_LOCAL_BIND */
+-#define PIN_UPDATE		BIT(8)
+-
+-#define PIN_HIGH		BIT(9)
+-#define PIN_OFFSET_BIAS		BIT(10)
+-#define PIN_OFFSET_FIXED	BIT(11)
++#define PIN_NONBLOCK		BIT_ULL(0)
++#define PIN_MAPPABLE		BIT_ULL(1)
++#define PIN_ZONE_4G		BIT_ULL(2)
++#define PIN_NONFAULT		BIT_ULL(3)
++#define PIN_NOEVICT		BIT_ULL(4)
++
++#define PIN_MBZ			BIT_ULL(5) /* I915_VMA_PIN_OVERFLOW */
++#define PIN_GLOBAL		BIT_ULL(6) /* I915_VMA_GLOBAL_BIND */
++#define PIN_USER		BIT_ULL(7) /* I915_VMA_LOCAL_BIND */
++#define PIN_UPDATE		BIT_ULL(8)
++
++#define PIN_HIGH		BIT_ULL(9)
++#define PIN_OFFSET_BIAS		BIT_ULL(10)
++#define PIN_OFFSET_FIXED	BIT_ULL(11)
+ #define PIN_OFFSET_MASK		(-I915_GTT_PAGE_SIZE)
+ 
+ #endif
+diff --git a/drivers/gpu/drm/i915/intel_audio.c b/drivers/gpu/drm/i915/intel_audio.c
+index 9240fa79de7c..bc9f735395bc 100644
+--- a/drivers/gpu/drm/i915/intel_audio.c
++++ b/drivers/gpu/drm/i915/intel_audio.c
+@@ -134,6 +134,9 @@ static const struct {
+ /* HDMI N/CTS table */
+ #define TMDS_297M 297000
+ #define TMDS_296M 296703
++#define TMDS_594M 594000
++#define TMDS_593M 593407
++
+ static const struct {
+ 	int sample_rate;
+ 	int clock;
+@@ -154,6 +157,20 @@ static const struct {
+ 	{ 176400, TMDS_297M, 18816, 247500 },
+ 	{ 192000, TMDS_296M, 23296, 281250 },
+ 	{ 192000, TMDS_297M, 20480, 247500 },
++	{ 44100, TMDS_593M, 8918, 937500 },
++	{ 44100, TMDS_594M, 9408, 990000 },
++	{ 48000, TMDS_593M, 5824, 562500 },
++	{ 48000, TMDS_594M, 6144, 594000 },
++	{ 32000, TMDS_593M, 5824, 843750 },
++	{ 32000, TMDS_594M, 3072, 445500 },
++	{ 88200, TMDS_593M, 17836, 937500 },
++	{ 88200, TMDS_594M, 18816, 990000 },
++	{ 96000, TMDS_593M, 11648, 562500 },
++	{ 96000, TMDS_594M, 12288, 594000 },
++	{ 176400, TMDS_593M, 35672, 937500 },
++	{ 176400, TMDS_594M, 37632, 990000 },
++	{ 192000, TMDS_593M, 23296, 562500 },
++	{ 192000, TMDS_594M, 24576, 594000 },
+ };
+ 
+ /* get AUD_CONFIG_PIXEL_CLOCK_HDMI_* value for mode */
+diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
+index 2006ab44fbf9..944cb3c2ba5c 100644
+--- a/drivers/gpu/drm/i915/intel_display.c
++++ b/drivers/gpu/drm/i915/intel_display.c
+@@ -14829,13 +14829,9 @@ static void intel_sanitize_crtc(struct intel_crtc *crtc,
+ 			   I915_READ(reg) & ~PIPECONF_FRAME_START_DELAY_MASK);
+ 	}
+ 
+-	/* restore vblank interrupts to correct state */
+-	drm_crtc_vblank_reset(&crtc->base);
+ 	if (crtc->active) {
+ 		struct intel_plane *plane;
+ 
+-		drm_crtc_vblank_on(&crtc->base);
+-
+ 		/* Disable everything but the primary plane */
+ 		for_each_intel_plane_on_crtc(dev, crtc, plane) {
+ 			const struct intel_plane_state *plane_state =
+@@ -15148,7 +15144,6 @@ intel_modeset_setup_hw_state(struct drm_device *dev,
+ 			     struct drm_modeset_acquire_ctx *ctx)
+ {
+ 	struct drm_i915_private *dev_priv = to_i915(dev);
+-	enum pipe pipe;
+ 	struct intel_crtc *crtc;
+ 	struct intel_encoder *encoder;
+ 	int i;
+@@ -15167,15 +15162,23 @@ intel_modeset_setup_hw_state(struct drm_device *dev,
+ 	/* HW state is read out, now we need to sanitize this mess. */
+ 	get_encoder_power_domains(dev_priv);
+ 
+-	intel_sanitize_plane_mapping(dev_priv);
++	/*
++	 * intel_sanitize_plane_mapping() may need to do vblank
++	 * waits, so we need vblank interrupts restored beforehand.
++	 */
++	for_each_intel_crtc(&dev_priv->drm, crtc) {
++		drm_crtc_vblank_reset(&crtc->base);
+ 
+-	for_each_intel_encoder(dev, encoder) {
+-		intel_sanitize_encoder(encoder);
++		if (crtc->active)
++			drm_crtc_vblank_on(&crtc->base);
+ 	}
+ 
+-	for_each_pipe(dev_priv, pipe) {
+-		crtc = intel_get_crtc_for_pipe(dev_priv, pipe);
++	intel_sanitize_plane_mapping(dev_priv);
+ 
++	for_each_intel_encoder(dev, encoder)
++		intel_sanitize_encoder(encoder);
++
++	for_each_intel_crtc(&dev_priv->drm, crtc) {
+ 		intel_sanitize_crtc(crtc, ctx);
+ 		intel_dump_pipe_config(crtc, crtc->config,
+ 				       "[setup_hw_state]");
+diff --git a/drivers/gpu/drm/i915/intel_dp_mst.c b/drivers/gpu/drm/i915/intel_dp_mst.c
+index 93fc8ab9bb31..b83a8f2b2a3a 100644
+--- a/drivers/gpu/drm/i915/intel_dp_mst.c
++++ b/drivers/gpu/drm/i915/intel_dp_mst.c
+@@ -37,11 +37,11 @@ static bool intel_dp_mst_compute_config(struct intel_encoder *encoder,
+ 	struct intel_dp_mst_encoder *intel_mst = enc_to_mst(&encoder->base);
+ 	struct intel_digital_port *intel_dig_port = intel_mst->primary;
+ 	struct intel_dp *intel_dp = &intel_dig_port->dp;
+-	struct intel_connector *connector =
+-		to_intel_connector(conn_state->connector);
++	struct drm_connector *connector = conn_state->connector;
++	void *port = to_intel_connector(connector)->port;
+ 	struct drm_atomic_state *state = pipe_config->base.state;
+ 	int bpp;
+-	int lane_count, slots;
++	int lane_count, slots = 0;
+ 	const struct drm_display_mode *adjusted_mode = &pipe_config->base.adjusted_mode;
+ 	int mst_pbn;
+ 	bool reduce_m_n = drm_dp_has_quirk(&intel_dp->desc,
+@@ -66,17 +66,23 @@ static bool intel_dp_mst_compute_config(struct intel_encoder *encoder,
+ 
+ 	pipe_config->port_clock = intel_dp_max_link_rate(intel_dp);
+ 
+-	if (drm_dp_mst_port_has_audio(&intel_dp->mst_mgr, connector->port))
++	if (drm_dp_mst_port_has_audio(&intel_dp->mst_mgr, port))
+ 		pipe_config->has_audio = true;
+ 
+ 	mst_pbn = drm_dp_calc_pbn_mode(adjusted_mode->crtc_clock, bpp);
+ 	pipe_config->pbn = mst_pbn;
+ 
+-	slots = drm_dp_atomic_find_vcpi_slots(state, &intel_dp->mst_mgr,
+-					      connector->port, mst_pbn);
+-	if (slots < 0) {
+-		DRM_DEBUG_KMS("failed finding vcpi slots:%d\n", slots);
+-		return false;
++	/* Zombie connectors can't have VCPI slots */
++	if (READ_ONCE(connector->registered)) {
++		slots = drm_dp_atomic_find_vcpi_slots(state,
++						      &intel_dp->mst_mgr,
++						      port,
++						      mst_pbn);
++		if (slots < 0) {
++			DRM_DEBUG_KMS("failed finding vcpi slots:%d\n",
++				      slots);
++			return false;
++		}
+ 	}
+ 
+ 	intel_link_compute_m_n(bpp, lane_count,
+@@ -311,9 +317,8 @@ static int intel_dp_mst_get_ddc_modes(struct drm_connector *connector)
+ 	struct edid *edid;
+ 	int ret;
+ 
+-	if (!intel_dp) {
++	if (!READ_ONCE(connector->registered))
+ 		return intel_connector_update_modes(connector, NULL);
+-	}
+ 
+ 	edid = drm_dp_mst_get_edid(connector, &intel_dp->mst_mgr, intel_connector->port);
+ 	ret = intel_connector_update_modes(connector, edid);
+@@ -328,9 +333,10 @@ intel_dp_mst_detect(struct drm_connector *connector, bool force)
+ 	struct intel_connector *intel_connector = to_intel_connector(connector);
+ 	struct intel_dp *intel_dp = intel_connector->mst_port;
+ 
+-	if (!intel_dp)
++	if (!READ_ONCE(connector->registered))
+ 		return connector_status_disconnected;
+-	return drm_dp_mst_detect_port(connector, &intel_dp->mst_mgr, intel_connector->port);
++	return drm_dp_mst_detect_port(connector, &intel_dp->mst_mgr,
++				      intel_connector->port);
+ }
+ 
+ static void
+@@ -370,7 +376,7 @@ intel_dp_mst_mode_valid(struct drm_connector *connector,
+ 	int bpp = 24; /* MST uses fixed bpp */
+ 	int max_rate, mode_rate, max_lanes, max_link_clock;
+ 
+-	if (!intel_dp)
++	if (!READ_ONCE(connector->registered))
+ 		return MODE_ERROR;
+ 
+ 	max_link_clock = intel_dp_max_link_rate(intel_dp);
+@@ -399,7 +405,7 @@ static struct drm_encoder *intel_mst_atomic_best_encoder(struct drm_connector *c
+ 	struct intel_dp *intel_dp = intel_connector->mst_port;
+ 	struct intel_crtc *crtc = to_intel_crtc(state->crtc);
+ 
+-	if (!intel_dp)
++	if (!READ_ONCE(connector->registered))
+ 		return NULL;
+ 	return &intel_dp->mst_encoders[crtc->pipe]->base.base;
+ }
+@@ -491,7 +497,6 @@ static void intel_dp_register_mst_connector(struct drm_connector *connector)
+ static void intel_dp_destroy_mst_connector(struct drm_dp_mst_topology_mgr *mgr,
+ 					   struct drm_connector *connector)
+ {
+-	struct intel_connector *intel_connector = to_intel_connector(connector);
+ 	struct drm_i915_private *dev_priv = to_i915(connector->dev);
+ 
+ 	drm_connector_unregister(connector);
+@@ -499,10 +504,6 @@ static void intel_dp_destroy_mst_connector(struct drm_dp_mst_topology_mgr *mgr,
+ 	if (dev_priv->fbdev)
+ 		drm_fb_helper_remove_one_connector(&dev_priv->fbdev->helper,
+ 						   connector);
+-	/* prevent race with the check in ->detect */
+-	drm_modeset_lock(&connector->dev->mode_config.connection_mutex, NULL);
+-	intel_connector->mst_port = NULL;
+-	drm_modeset_unlock(&connector->dev->mode_config.connection_mutex);
+ 
+ 	drm_connector_unreference(connector);
+ 	DRM_DEBUG_KMS("\n");
+diff --git a/drivers/gpu/drm/i915/intel_lpe_audio.c b/drivers/gpu/drm/i915/intel_lpe_audio.c
+index 8a541d0e3e80..30280323e1d8 100644
+--- a/drivers/gpu/drm/i915/intel_lpe_audio.c
++++ b/drivers/gpu/drm/i915/intel_lpe_audio.c
+@@ -303,8 +303,10 @@ void intel_lpe_audio_teardown(struct drm_i915_private *dev_priv)
+ 	lpe_audio_platdev_destroy(dev_priv);
+ 
+ 	irq_free_desc(dev_priv->lpe_audio.irq);
+-}
+ 
++	dev_priv->lpe_audio.irq = -1;
++	dev_priv->lpe_audio.platdev = NULL;
++}
+ 
+ /**
+  * intel_lpe_audio_notify() - notify lpe audio event
+diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c
+index d638b641b760..0775e71ea95b 100644
+--- a/drivers/gpu/drm/i915/intel_lrc.c
++++ b/drivers/gpu/drm/i915/intel_lrc.c
+@@ -325,7 +325,8 @@ static u64 execlists_update_context(struct drm_i915_gem_request *rq)
+ 
+ 	reg_state[CTX_RING_TAIL+1] = intel_ring_set_tail(rq->ring, rq->tail);
+ 
+-	/* True 32b PPGTT with dynamic page allocation: update PDP
++	/*
++	 * True 32b PPGTT with dynamic page allocation: update PDP
+ 	 * registers and point the unallocated PDPs to scratch page.
+ 	 * PML4 is allocated during ppgtt init, so this is not needed
+ 	 * in 48-bit mode.
+@@ -333,6 +334,17 @@ static u64 execlists_update_context(struct drm_i915_gem_request *rq)
+ 	if (ppgtt && !i915_vm_is_48bit(&ppgtt->base))
+ 		execlists_update_context_pdps(ppgtt, reg_state);
+ 
++	/*
++	 * Make sure the context image is complete before we submit it to HW.
++	 *
++	 * Ostensibly, writes (including the WCB) should be flushed prior to
++	 * an uncached write such as our mmio register access, the empirical
++	 * evidence (esp. on Braswell) suggests that the WC write into memory
++	 * may not be visible to the HW prior to the completion of the UC
++	 * register write and that we may begin execution from the context
++	 * before its image is complete leading to invalid PD chasing.
++	 */
++	wmb();
+ 	return ce->lrc_desc;
+ }
+ 
+diff --git a/drivers/gpu/drm/nouveau/nouveau_backlight.c b/drivers/gpu/drm/nouveau/nouveau_backlight.c
+index 408b955e5c39..6dd72bc32897 100644
+--- a/drivers/gpu/drm/nouveau/nouveau_backlight.c
++++ b/drivers/gpu/drm/nouveau/nouveau_backlight.c
+@@ -116,7 +116,7 @@ nv40_backlight_init(struct drm_connector *connector)
+ 				       &nv40_bl_ops, &props);
+ 
+ 	if (IS_ERR(bd)) {
+-		if (bl_connector.id > 0)
++		if (bl_connector.id >= 0)
+ 			ida_simple_remove(&bl_ida, bl_connector.id);
+ 		return PTR_ERR(bd);
+ 	}
+@@ -249,7 +249,7 @@ nv50_backlight_init(struct drm_connector *connector)
+ 				       nv_encoder, ops, &props);
+ 
+ 	if (IS_ERR(bd)) {
+-		if (bl_connector.id > 0)
++		if (bl_connector.id >= 0)
+ 			ida_simple_remove(&bl_ida, bl_connector.id);
+ 		return PTR_ERR(bd);
+ 	}
+diff --git a/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c b/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c
+index df05fe53c399..32901c6fe3df 100644
+--- a/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c
++++ b/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c
+@@ -273,6 +273,17 @@ static int dmm_txn_commit(struct dmm_txn *txn, bool wait)
+ 	}
+ 
+ 	txn->last_pat->next_pa = 0;
++	/* ensure that the written descriptors are visible to DMM */
++	wmb();
++
++	/*
++	 * NOTE: the wmb() above should be enough, but there seems to be a bug
++	 * in OMAP's memory barrier implementation, which in some rare cases may
++	 * cause the writes not to be observable after wmb().
++	 */
++
++	/* read back to ensure the data is in RAM */
++	readl(&txn->last_pat->next_pa);
+ 
+ 	/* write to PAT_DESCR to clear out any pending transaction */
+ 	dmm_write(dmm, 0x0, reg[PAT_DESCR][engine->id]);
+diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c
+index ff3d0f5efbb1..4cacb03f6733 100644
+--- a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c
++++ b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c
+@@ -425,6 +425,11 @@ static int rockchip_drm_platform_remove(struct platform_device *pdev)
+ 	return 0;
+ }
+ 
++static void rockchip_drm_platform_shutdown(struct platform_device *pdev)
++{
++	rockchip_drm_platform_remove(pdev);
++}
++
+ static const struct of_device_id rockchip_drm_dt_ids[] = {
+ 	{ .compatible = "rockchip,display-subsystem", },
+ 	{ /* sentinel */ },
+@@ -434,6 +439,7 @@ MODULE_DEVICE_TABLE(of, rockchip_drm_dt_ids);
+ static struct platform_driver rockchip_drm_platform_driver = {
+ 	.probe = rockchip_drm_platform_probe,
+ 	.remove = rockchip_drm_platform_remove,
++	.shutdown = rockchip_drm_platform_shutdown,
+ 	.driver = {
+ 		.name = "rockchip-drm",
+ 		.of_match_table = rockchip_drm_dt_ids,
+diff --git a/drivers/media/i2c/ov7670.c b/drivers/media/i2c/ov7670.c
+index e88549f0e704..39ff73a6a807 100644
+--- a/drivers/media/i2c/ov7670.c
++++ b/drivers/media/i2c/ov7670.c
+@@ -1612,23 +1612,29 @@ static int ov7670_probe(struct i2c_client *client,
+ 			info->pclk_hb_disable = true;
+ 	}
+ 
+-	info->clk = devm_clk_get(&client->dev, "xclk");
+-	if (IS_ERR(info->clk))
+-		return PTR_ERR(info->clk);
+-	ret = clk_prepare_enable(info->clk);
+-	if (ret)
+-		return ret;
++	info->clk = devm_clk_get(&client->dev, "xclk"); /* optional */
++	if (IS_ERR(info->clk)) {
++		ret = PTR_ERR(info->clk);
++		if (ret == -ENOENT)
++			info->clk = NULL;
++		else
++			return ret;
++	}
++	if (info->clk) {
++		ret = clk_prepare_enable(info->clk);
++		if (ret)
++			return ret;
++		info->clock_speed = clk_get_rate(info->clk) / 1000000;
++		if (info->clock_speed < 10 || info->clock_speed > 48) {
++			ret = -EINVAL;
++			goto clk_disable;
++		}
++	}
+ 
+ 	ret = ov7670_init_gpio(client, info);
+ 	if (ret)
+ 		goto clk_disable;
+ 
+-	info->clock_speed = clk_get_rate(info->clk) / 1000000;
+-	if (info->clock_speed < 10 || info->clock_speed > 48) {
+-		ret = -EINVAL;
+-		goto clk_disable;
+-	}
+-
+ 	/* Make sure it's an ov7670 */
+ 	ret = ov7670_detect(sd);
+ 	if (ret) {
+diff --git a/drivers/media/i2c/tvp5150.c b/drivers/media/i2c/tvp5150.c
+index 4d3e97f97c76..b41f7fafb731 100644
+--- a/drivers/media/i2c/tvp5150.c
++++ b/drivers/media/i2c/tvp5150.c
+@@ -900,9 +900,6 @@ static int tvp5150_set_selection(struct v4l2_subdev *sd,
+ 
+ 	/* tvp5150 has some special limits */
+ 	rect.left = clamp(rect.left, 0, TVP5150_MAX_CROP_LEFT);
+-	rect.width = clamp_t(unsigned int, rect.width,
+-			     TVP5150_H_MAX - TVP5150_MAX_CROP_LEFT - rect.left,
+-			     TVP5150_H_MAX - rect.left);
+ 	rect.top = clamp(rect.top, 0, TVP5150_MAX_CROP_TOP);
+ 
+ 	/* Calculate height based on current standard */
+@@ -916,9 +913,16 @@ static int tvp5150_set_selection(struct v4l2_subdev *sd,
+ 	else
+ 		hmax = TVP5150_V_MAX_OTHERS;
+ 
+-	rect.height = clamp_t(unsigned int, rect.height,
++	/*
++	 * alignments:
++	 *  - width = 2 due to UYVY colorspace
++	 *  - height, image = no special alignment
++	 */
++	v4l_bound_align_image(&rect.width,
++			      TVP5150_H_MAX - TVP5150_MAX_CROP_LEFT - rect.left,
++			      TVP5150_H_MAX - rect.left, 1, &rect.height,
+ 			      hmax - TVP5150_MAX_CROP_TOP - rect.top,
+-			      hmax - rect.top);
++			      hmax - rect.top, 0, 0);
+ 
+ 	tvp5150_write(sd, TVP5150_VERT_BLANKING_START, rect.top);
+ 	tvp5150_write(sd, TVP5150_VERT_BLANKING_STOP,
+diff --git a/drivers/media/pci/cx23885/altera-ci.c b/drivers/media/pci/cx23885/altera-ci.c
+index 5c94e312cba3..f77254cc16bf 100644
+--- a/drivers/media/pci/cx23885/altera-ci.c
++++ b/drivers/media/pci/cx23885/altera-ci.c
+@@ -665,6 +665,10 @@ static int altera_hw_filt_init(struct altera_ci_config *config, int hw_filt_nr)
+ 		}
+ 
+ 		temp_int = append_internal(inter);
++		if (!temp_int) {
++			ret = -ENOMEM;
++			goto err;
++		}
+ 		inter->filts_used = 1;
+ 		inter->dev = config->dev;
+ 		inter->fpga_rw = config->fpga_rw;
+@@ -699,6 +703,7 @@ err:
+ 		     __func__, ret);
+ 
+ 	kfree(pid_filt);
++	kfree(inter);
+ 
+ 	return ret;
+ }
+@@ -733,6 +738,10 @@ int altera_ci_init(struct altera_ci_config *config, int ci_nr)
+ 		}
+ 
+ 		temp_int = append_internal(inter);
++		if (!temp_int) {
++			ret = -ENOMEM;
++			goto err;
++		}
+ 		inter->cis_used = 1;
+ 		inter->dev = config->dev;
+ 		inter->fpga_rw = config->fpga_rw;
+@@ -801,6 +810,7 @@ err:
+ 	ci_dbg_print("%s: Cannot initialize CI: Error %d.\n", __func__, ret);
+ 
+ 	kfree(state);
++	kfree(inter);
+ 
+ 	return ret;
+ }
+diff --git a/drivers/media/platform/coda/coda-common.c b/drivers/media/platform/coda/coda-common.c
+index 15eb5dc4dff9..99d138d3f87f 100644
+--- a/drivers/media/platform/coda/coda-common.c
++++ b/drivers/media/platform/coda/coda-common.c
+@@ -1686,7 +1686,8 @@ static int coda_s_ctrl(struct v4l2_ctrl *ctrl)
+ 		break;
+ 	case V4L2_CID_MPEG_VIDEO_H264_PROFILE:
+ 		/* TODO: switch between baseline and constrained baseline */
+-		ctx->params.h264_profile_idc = 66;
++		if (ctx->inst_type == CODA_INST_ENCODER)
++			ctx->params.h264_profile_idc = 66;
+ 		break;
+ 	case V4L2_CID_MPEG_VIDEO_H264_LEVEL:
+ 		/* nothing to do, this is set by the encoder */
+diff --git a/drivers/mtd/devices/Kconfig b/drivers/mtd/devices/Kconfig
+index 6def5445e03e..64731e3221ef 100644
+--- a/drivers/mtd/devices/Kconfig
++++ b/drivers/mtd/devices/Kconfig
+@@ -206,7 +206,7 @@ comment "Disk-On-Chip Device Drivers"
+ config MTD_DOCG3
+ 	tristate "M-Systems Disk-On-Chip G3"
+ 	select BCH
+-	select BCH_CONST_PARAMS
++	select BCH_CONST_PARAMS if !MTD_NAND_BCH
+ 	select BITREVERSE
+ 	---help---
+ 	  This provides an MTD device driver for the M-Systems DiskOnChip
+diff --git a/drivers/nvme/target/loop.c b/drivers/nvme/target/loop.c
+index 02aff5cc48bf..3388d2788fe0 100644
+--- a/drivers/nvme/target/loop.c
++++ b/drivers/nvme/target/loop.c
+@@ -183,15 +183,12 @@ static blk_status_t nvme_loop_queue_rq(struct blk_mq_hw_ctx *hctx,
+ 	if (ret)
+ 		return ret;
+ 
++	blk_mq_start_request(req);
+ 	iod->cmd.common.flags |= NVME_CMD_SGL_METABUF;
+ 	iod->req.port = nvmet_loop_port;
+ 	if (!nvmet_req_init(&iod->req, &queue->nvme_cq,
+-			&queue->nvme_sq, &nvme_loop_ops)) {
+-		nvme_cleanup_cmd(req);
+-		blk_mq_start_request(req);
+-		nvme_loop_queue_response(&iod->req);
++			&queue->nvme_sq, &nvme_loop_ops))
+ 		return BLK_STS_OK;
+-	}
+ 
+ 	if (blk_rq_bytes(req)) {
+ 		iod->sg_table.sgl = iod->first_sgl;
+@@ -204,8 +201,6 @@ static blk_status_t nvme_loop_queue_rq(struct blk_mq_hw_ctx *hctx,
+ 		iod->req.sg_cnt = blk_rq_map_sg(req->q, req, iod->sg_table.sgl);
+ 	}
+ 
+-	blk_mq_start_request(req);
+-
+ 	schedule_work(&iod->work);
+ 	return BLK_STS_OK;
+ }
+diff --git a/drivers/of/of_numa.c b/drivers/of/of_numa.c
+index 2db1f7a04baf..0b29ee9ee8c3 100644
+--- a/drivers/of/of_numa.c
++++ b/drivers/of/of_numa.c
+@@ -126,9 +126,14 @@ static int __init of_numa_parse_distance_map_v1(struct device_node *map)
+ 		distance = of_read_number(matrix, 1);
+ 		matrix++;
+ 
++		if ((nodea == nodeb && distance != LOCAL_DISTANCE) ||
++		    (nodea != nodeb && distance <= LOCAL_DISTANCE)) {
++			pr_err("Invalid distance[node%d -> node%d] = %d\n",
++			       nodea, nodeb, distance);
++			return -EINVAL;
++		}
++
+ 		numa_set_distance(nodea, nodeb, distance);
+-		pr_debug("distance[node%d -> node%d] = %d\n",
+-			 nodea, nodeb, distance);
+ 
+ 		/* Set default distance of node B->A same as A->B */
+ 		if (nodeb > nodea)
+diff --git a/drivers/rtc/hctosys.c b/drivers/rtc/hctosys.c
+index e79f2a181ad2..b9ec4a16db1f 100644
+--- a/drivers/rtc/hctosys.c
++++ b/drivers/rtc/hctosys.c
+@@ -50,8 +50,10 @@ static int __init rtc_hctosys(void)
+ 	tv64.tv_sec = rtc_tm_to_time64(&tm);
+ 
+ #if BITS_PER_LONG == 32
+-	if (tv64.tv_sec > INT_MAX)
++	if (tv64.tv_sec > INT_MAX) {
++		err = -ERANGE;
+ 		goto err_read;
++	}
+ #endif
+ 
+ 	err = do_settimeofday64(&tv64);
+diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
+index 0e19f6bc24ff..aef1e1a55535 100644
+--- a/drivers/scsi/qla2xxx/qla_init.c
++++ b/drivers/scsi/qla2xxx/qla_init.c
+@@ -1511,25 +1511,15 @@ qla24xx_handle_plogi_done_event(struct scsi_qla_host *vha, struct event_arg *ea)
+ 		cid.b.rsvd_1 = 0;
+ 
+ 		ql_dbg(ql_dbg_disc, vha, 0x20ec,
+-		    "%s %d %8phC LoopID 0x%x in use post gnl\n",
++		    "%s %d %8phC lid %#x in use with pid %06x post gnl\n",
+ 		    __func__, __LINE__, ea->fcport->port_name,
+-		    ea->fcport->loop_id);
++		    ea->fcport->loop_id, cid.b24);
+ 
+-		if (IS_SW_RESV_ADDR(cid)) {
+-			set_bit(ea->fcport->loop_id, vha->hw->loop_id_map);
+-			ea->fcport->loop_id = FC_NO_LOOP_ID;
+-		} else {
+-			qla2x00_clear_loop_id(ea->fcport);
+-		}
++		set_bit(ea->fcport->loop_id, vha->hw->loop_id_map);
++		ea->fcport->loop_id = FC_NO_LOOP_ID;
+ 		qla24xx_post_gnl_work(vha, ea->fcport);
+ 		break;
+ 	case MBS_PORT_ID_USED:
+-		ql_dbg(ql_dbg_disc, vha, 0x20ed,
+-		    "%s %d %8phC NPortId %02x%02x%02x inuse post gidpn\n",
+-		    __func__, __LINE__, ea->fcport->port_name,
+-		    ea->fcport->d_id.b.domain, ea->fcport->d_id.b.area,
+-		    ea->fcport->d_id.b.al_pa);
+-
+ 		lid = ea->iop[1] & 0xffff;
+ 		qlt_find_sess_invalidate_other(vha,
+ 		    wwn_to_u64(ea->fcport->port_name),
+@@ -4246,6 +4236,7 @@ qla2x00_alloc_fcport(scsi_qla_host_t *vha, gfp_t flags)
+ 	fcport->loop_id = FC_NO_LOOP_ID;
+ 	qla2x00_set_fcport_state(fcport, FCS_UNCONFIGURED);
+ 	fcport->supported_classes = FC_COS_UNSPECIFIED;
++	fcport->fp_speed = PORT_SPEED_UNKNOWN;
+ 
+ 	fcport->ct_desc.ct_sns = dma_alloc_coherent(&vha->hw->pdev->dev,
+ 		sizeof(struct ct_sns_pkt), &fcport->ct_desc.ct_sns_dma,
+@@ -6077,7 +6068,7 @@ qla2x00_abort_isp(scsi_qla_host_t *vha)
+ 					 * The next call disables the board
+ 					 * completely.
+ 					 */
+-					ha->isp_ops->reset_adapter(vha);
++					qla2x00_abort_isp_cleanup(vha);
+ 					vha->flags.online = 0;
+ 					clear_bit(ISP_ABORT_RETRY,
+ 					    &vha->dpc_flags);
+@@ -7591,7 +7582,6 @@ qla81xx_nvram_config(scsi_qla_host_t *vha)
+ 	}
+ 	icb->firmware_options_2 &= cpu_to_le32(
+ 	    ~(BIT_3 | BIT_2 | BIT_1 | BIT_0));
+-	vha->flags.process_response_queue = 0;
+ 	if (ha->zio_mode != QLA_ZIO_DISABLED) {
+ 		ha->zio_mode = QLA_ZIO_MODE_6;
+ 
+@@ -7603,7 +7593,6 @@ qla81xx_nvram_config(scsi_qla_host_t *vha)
+ 		icb->firmware_options_2 |= cpu_to_le32(
+ 		    (uint32_t)ha->zio_mode);
+ 		icb->interrupt_delay_timer = cpu_to_le16(ha->zio_timer);
+-		vha->flags.process_response_queue = 1;
+ 	}
+ 
+ 	 /* enable RIDA Format2 */
+diff --git a/drivers/scsi/qla2xxx/qla_iocb.c b/drivers/scsi/qla2xxx/qla_iocb.c
+index 8d579bf0fc81..85cb4e30f742 100644
+--- a/drivers/scsi/qla2xxx/qla_iocb.c
++++ b/drivers/scsi/qla2xxx/qla_iocb.c
+@@ -1524,12 +1524,6 @@ qla24xx_start_scsi(srb_t *sp)
+ 
+ 	/* Set chip new ring index. */
+ 	WRT_REG_DWORD(req->req_q_in, req->ring_index);
+-	RD_REG_DWORD_RELAXED(&ha->iobase->isp24.hccr);
+-
+-	/* Manage unprocessed RIO/ZIO commands in response queue. */
+-	if (vha->flags.process_response_queue &&
+-		rsp->ring_ptr->signature != RESPONSE_PROCESSED)
+-		qla24xx_process_response_queue(vha, rsp);
+ 
+ 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
+ 	return QLA_SUCCESS;
+@@ -1723,12 +1717,6 @@ qla24xx_dif_start_scsi(srb_t *sp)
+ 
+ 	/* Set chip new ring index. */
+ 	WRT_REG_DWORD(req->req_q_in, req->ring_index);
+-	RD_REG_DWORD_RELAXED(&ha->iobase->isp24.hccr);
+-
+-	/* Manage unprocessed RIO/ZIO commands in response queue. */
+-	if (vha->flags.process_response_queue &&
+-	    rsp->ring_ptr->signature != RESPONSE_PROCESSED)
+-		qla24xx_process_response_queue(vha, rsp);
+ 
+ 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
+ 
+@@ -1878,11 +1866,6 @@ qla2xxx_start_scsi_mq(srb_t *sp)
+ 	/* Set chip new ring index. */
+ 	WRT_REG_DWORD(req->req_q_in, req->ring_index);
+ 
+-	/* Manage unprocessed RIO/ZIO commands in response queue. */
+-	if (vha->flags.process_response_queue &&
+-		rsp->ring_ptr->signature != RESPONSE_PROCESSED)
+-		qla24xx_process_response_queue(vha, rsp);
+-
+ 	spin_unlock_irqrestore(&qpair->qp_lock, flags);
+ 	return QLA_SUCCESS;
+ 
+diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c
+index 2d909e12e23a..929ec087b8eb 100644
+--- a/drivers/scsi/qla2xxx/qla_mbx.c
++++ b/drivers/scsi/qla2xxx/qla_mbx.c
+@@ -3682,10 +3682,7 @@ qla2x00_set_idma_speed(scsi_qla_host_t *vha, uint16_t loop_id,
+ 	mcp->mb[0] = MBC_PORT_PARAMS;
+ 	mcp->mb[1] = loop_id;
+ 	mcp->mb[2] = BIT_0;
+-	if (IS_CNA_CAPABLE(vha->hw))
+-		mcp->mb[3] = port_speed & (BIT_5|BIT_4|BIT_3|BIT_2|BIT_1|BIT_0);
+-	else
+-		mcp->mb[3] = port_speed & (BIT_2|BIT_1|BIT_0);
++	mcp->mb[3] = port_speed & (BIT_5|BIT_4|BIT_3|BIT_2|BIT_1|BIT_0);
+ 	mcp->mb[9] = vha->vp_idx;
+ 	mcp->out_mb = MBX_9|MBX_3|MBX_2|MBX_1|MBX_0;
+ 	mcp->in_mb = MBX_3|MBX_1|MBX_0;
+diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c
+index d6fe08de59a0..87e04c4a4982 100644
+--- a/drivers/scsi/qla2xxx/qla_target.c
++++ b/drivers/scsi/qla2xxx/qla_target.c
+@@ -1203,7 +1203,8 @@ void qlt_schedule_sess_for_deletion(struct fc_port *sess,
+ 	qla24xx_chk_fcp_state(sess);
+ 
+ 	ql_dbg(ql_dbg_tgt, sess->vha, 0xe001,
+-	    "Scheduling sess %p for deletion\n", sess);
++	    "Scheduling sess %p for deletion %8phC\n",
++	    sess, sess->port_name);
+ 
+ 	INIT_WORK(&sess->del_work, qla24xx_delete_sess_fn);
+ 	queue_work(sess->vha->hw->wq, &sess->del_work);
+diff --git a/drivers/scsi/qla2xxx/tcm_qla2xxx.c b/drivers/scsi/qla2xxx/tcm_qla2xxx.c
+index 3f82ea1b72dc..9465acd18df0 100644
+--- a/drivers/scsi/qla2xxx/tcm_qla2xxx.c
++++ b/drivers/scsi/qla2xxx/tcm_qla2xxx.c
+@@ -693,10 +693,6 @@ static int tcm_qla2xxx_queue_status(struct se_cmd *se_cmd)
+ 	cmd->sg_cnt = 0;
+ 	cmd->offset = 0;
+ 	cmd->dma_data_direction = target_reverse_dma_direction(se_cmd);
+-	if (cmd->trc_flags & TRC_XMIT_STATUS) {
+-		pr_crit("Multiple calls for status = %p.\n", cmd);
+-		dump_stack();
+-	}
+ 	cmd->trc_flags |= TRC_XMIT_STATUS;
+ 
+ 	if (se_cmd->data_direction == DMA_FROM_DEVICE) {
+diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
+index bfd8f12d4e9a..7f505c027ce7 100644
+--- a/drivers/scsi/scsi_lib.c
++++ b/drivers/scsi/scsi_lib.c
+@@ -683,6 +683,12 @@ static bool scsi_end_request(struct request *req, blk_status_t error,
+ 		 */
+ 		scsi_mq_uninit_cmd(cmd);
+ 
++		/*
++		 * queue is still alive, so grab the ref for preventing it
++		 * from being cleaned up during running queue.
++		 */
++		percpu_ref_get(&q->q_usage_counter);
++
+ 		__blk_mq_end_request(req, error);
+ 
+ 		if (scsi_target(sdev)->single_lun ||
+@@ -690,6 +696,8 @@ static bool scsi_end_request(struct request *req, blk_status_t error,
+ 			kblockd_schedule_work(&sdev->requeue_work);
+ 		else
+ 			blk_mq_run_hw_queues(q, true);
++
++		percpu_ref_put(&q->q_usage_counter);
+ 	} else {
+ 		unsigned long flags;
+ 
+diff --git a/drivers/soc/ti/knav_qmss.h b/drivers/soc/ti/knav_qmss.h
+index 905b974d1bdc..4686192e719e 100644
+--- a/drivers/soc/ti/knav_qmss.h
++++ b/drivers/soc/ti/knav_qmss.h
+@@ -321,8 +321,8 @@ struct knav_range_ops {
+ };
+ 
+ struct knav_irq_info {
+-	int	irq;
+-	u32	cpu_map;
++	int		irq;
++	struct cpumask	*cpu_mask;
+ };
+ 
+ struct knav_range_info {
+diff --git a/drivers/soc/ti/knav_qmss_acc.c b/drivers/soc/ti/knav_qmss_acc.c
+index 3d7225f4e77f..672aebe1e378 100644
+--- a/drivers/soc/ti/knav_qmss_acc.c
++++ b/drivers/soc/ti/knav_qmss_acc.c
+@@ -205,18 +205,18 @@ static int knav_range_setup_acc_irq(struct knav_range_info *range,
+ {
+ 	struct knav_device *kdev = range->kdev;
+ 	struct knav_acc_channel *acc;
+-	unsigned long cpu_map;
++	struct cpumask *cpu_mask;
+ 	int ret = 0, irq;
+ 	u32 old, new;
+ 
+ 	if (range->flags & RANGE_MULTI_QUEUE) {
+ 		acc = range->acc;
+ 		irq = range->irqs[0].irq;
+-		cpu_map = range->irqs[0].cpu_map;
++		cpu_mask = range->irqs[0].cpu_mask;
+ 	} else {
+ 		acc = range->acc + queue;
+ 		irq = range->irqs[queue].irq;
+-		cpu_map = range->irqs[queue].cpu_map;
++		cpu_mask = range->irqs[queue].cpu_mask;
+ 	}
+ 
+ 	old = acc->open_mask;
+@@ -239,8 +239,8 @@ static int knav_range_setup_acc_irq(struct knav_range_info *range,
+ 			acc->name, acc->name);
+ 		ret = request_irq(irq, knav_acc_int_handler, 0, acc->name,
+ 				  range);
+-		if (!ret && cpu_map) {
+-			ret = irq_set_affinity_hint(irq, to_cpumask(&cpu_map));
++		if (!ret && cpu_mask) {
++			ret = irq_set_affinity_hint(irq, cpu_mask);
+ 			if (ret) {
+ 				dev_warn(range->kdev->dev,
+ 					 "Failed to set IRQ affinity\n");
+diff --git a/drivers/soc/ti/knav_qmss_queue.c b/drivers/soc/ti/knav_qmss_queue.c
+index 39225de9d7f1..9879ca5f8c5f 100644
+--- a/drivers/soc/ti/knav_qmss_queue.c
++++ b/drivers/soc/ti/knav_qmss_queue.c
+@@ -102,19 +102,17 @@ static int knav_queue_setup_irq(struct knav_range_info *range,
+ 			  struct knav_queue_inst *inst)
+ {
+ 	unsigned queue = inst->id - range->queue_base;
+-	unsigned long cpu_map;
+ 	int ret = 0, irq;
+ 
+ 	if (range->flags & RANGE_HAS_IRQ) {
+ 		irq = range->irqs[queue].irq;
+-		cpu_map = range->irqs[queue].cpu_map;
+ 		ret = request_irq(irq, knav_queue_int_handler, 0,
+ 					inst->irq_name, inst);
+ 		if (ret)
+ 			return ret;
+ 		disable_irq(irq);
+-		if (cpu_map) {
+-			ret = irq_set_affinity_hint(irq, to_cpumask(&cpu_map));
++		if (range->irqs[queue].cpu_mask) {
++			ret = irq_set_affinity_hint(irq, range->irqs[queue].cpu_mask);
+ 			if (ret) {
+ 				dev_warn(range->kdev->dev,
+ 					 "Failed to set IRQ affinity\n");
+@@ -1222,9 +1220,19 @@ static int knav_setup_queue_range(struct knav_device *kdev,
+ 
+ 		range->num_irqs++;
+ 
+-		if (IS_ENABLED(CONFIG_SMP) && oirq.args_count == 3)
+-			range->irqs[i].cpu_map =
+-				(oirq.args[2] & 0x0000ff00) >> 8;
++		if (IS_ENABLED(CONFIG_SMP) && oirq.args_count == 3) {
++			unsigned long mask;
++			int bit;
++
++			range->irqs[i].cpu_mask = devm_kzalloc(dev,
++							       cpumask_size(), GFP_KERNEL);
++			if (!range->irqs[i].cpu_mask)
++				return -ENOMEM;
++
++			mask = (oirq.args[2] & 0x0000ff00) >> 8;
++			for_each_set_bit(bit, &mask, BITS_PER_LONG)
++				cpumask_set_cpu(bit, range->irqs[i].cpu_mask);
++		}
+ 	}
+ 
+ 	range->num_irqs = min(range->num_irqs, range->num_queues);
+diff --git a/drivers/staging/iio/adc/ad7606.c b/drivers/staging/iio/adc/ad7606.c
+index 18f5f139117e..0ff458fbee5e 100644
+--- a/drivers/staging/iio/adc/ad7606.c
++++ b/drivers/staging/iio/adc/ad7606.c
+@@ -26,9 +26,12 @@
+ 
+ #include "ad7606.h"
+ 
+-/* Scales are computed as 2.5/2**16 and 5/2**16 respectively */
++/*
++ * Scales are computed as 5000/32768 and 10000/32768 respectively,
++ * so that when applied to the raw values they provide mV values
++ */
+ static const unsigned int scale_avail[2][2] = {
+-	{0, 38147}, {0, 76294}
++	{0, 152588}, {0, 305176}
+ };
+ 
+ static int ad7606_reset(struct ad7606_state *st)
+diff --git a/drivers/thermal/Kconfig b/drivers/thermal/Kconfig
+index 07002df4f83a..e3f0d1fd1720 100644
+--- a/drivers/thermal/Kconfig
++++ b/drivers/thermal/Kconfig
+@@ -408,7 +408,7 @@ config MTK_THERMAL
+ 	  controller present in Mediatek SoCs
+ 
+ menu "Broadcom thermal drivers"
+-depends on ARCH_BCM || COMPILE_TEST
++depends on ARCH_BCM || ARCH_BCM2835 || COMPILE_TEST
+ source "drivers/thermal/broadcom/Kconfig"
+ endmenu
+ 
+diff --git a/drivers/tty/serial/sc16is7xx.c b/drivers/tty/serial/sc16is7xx.c
+index ca54ce074a5f..a79f18edf2bd 100644
+--- a/drivers/tty/serial/sc16is7xx.c
++++ b/drivers/tty/serial/sc16is7xx.c
+@@ -662,7 +662,7 @@ static void sc16is7xx_handle_tx(struct uart_port *port)
+ 		uart_write_wakeup(port);
+ }
+ 
+-static void sc16is7xx_port_irq(struct sc16is7xx_port *s, int portno)
++static bool sc16is7xx_port_irq(struct sc16is7xx_port *s, int portno)
+ {
+ 	struct uart_port *port = &s->p[portno].port;
+ 
+@@ -671,7 +671,7 @@ static void sc16is7xx_port_irq(struct sc16is7xx_port *s, int portno)
+ 
+ 		iir = sc16is7xx_port_read(port, SC16IS7XX_IIR_REG);
+ 		if (iir & SC16IS7XX_IIR_NO_INT_BIT)
+-			break;
++			return false;
+ 
+ 		iir &= SC16IS7XX_IIR_ID_MASK;
+ 
+@@ -693,16 +693,23 @@ static void sc16is7xx_port_irq(struct sc16is7xx_port *s, int portno)
+ 					    port->line, iir);
+ 			break;
+ 		}
+-	} while (1);
++	} while (0);
++	return true;
+ }
+ 
+ static void sc16is7xx_ist(struct kthread_work *ws)
+ {
+ 	struct sc16is7xx_port *s = to_sc16is7xx_port(ws, irq_work);
+-	int i;
+ 
+-	for (i = 0; i < s->devtype->nr_uart; ++i)
+-		sc16is7xx_port_irq(s, i);
++	while (1) {
++		bool keep_polling = false;
++		int i;
++
++		for (i = 0; i < s->devtype->nr_uart; ++i)
++			keep_polling |= sc16is7xx_port_irq(s, i);
++		if (!keep_polling)
++			break;
++	}
+ }
+ 
+ static irqreturn_t sc16is7xx_irq(int irq, void *dev_id)
+diff --git a/drivers/tty/tty_baudrate.c b/drivers/tty/tty_baudrate.c
+index ebc797fc1afd..42e5683147d5 100644
+--- a/drivers/tty/tty_baudrate.c
++++ b/drivers/tty/tty_baudrate.c
+@@ -76,7 +76,7 @@ speed_t tty_termios_baud_rate(struct ktermios *termios)
+ 		else
+ 			cbaud += 15;
+ 	}
+-	return baud_table[cbaud];
++	return cbaud >= n_baud_table ? 0 : baud_table[cbaud];
+ }
+ EXPORT_SYMBOL(tty_termios_baud_rate);
+ 
+@@ -112,7 +112,7 @@ speed_t tty_termios_input_baud_rate(struct ktermios *termios)
+ 		else
+ 			cbaud += 15;
+ 	}
+-	return baud_table[cbaud];
++	return cbaud >= n_baud_table ? 0 : baud_table[cbaud];
+ #else
+ 	return tty_termios_baud_rate(termios);
+ #endif
+diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
+index 8d65b2f9ee80..83376caa571b 100644
+--- a/drivers/tty/tty_io.c
++++ b/drivers/tty/tty_io.c
+@@ -407,7 +407,7 @@ struct tty_driver *tty_find_polling_driver(char *name, int *line)
+ 	mutex_lock(&tty_mutex);
+ 	/* Search through the tty devices to look for a match */
+ 	list_for_each_entry(p, &tty_drivers, tty_drivers) {
+-		if (strncmp(name, p->name, len) != 0)
++		if (!len || strncmp(name, p->name, len) != 0)
+ 			continue;
+ 		stp = str;
+ 		if (*stp == ',')
+diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c
+index e47c5bc3ddca..35ebf06d9ecb 100644
+--- a/drivers/vhost/scsi.c
++++ b/drivers/vhost/scsi.c
+@@ -993,7 +993,8 @@ vhost_scsi_handle_vq(struct vhost_scsi *vs, struct vhost_virtqueue *vq)
+ 				prot_bytes = vhost32_to_cpu(vq, v_req_pi.pi_bytesin);
+ 			}
+ 			/*
+-			 * Set prot_iter to data_iter, and advance past any
++			 * Set prot_iter to data_iter and truncate it to
++			 * prot_bytes, and advance data_iter past any
+ 			 * preceeding prot_bytes that may be present.
+ 			 *
+ 			 * Also fix up the exp_data_len to reflect only the
+@@ -1002,6 +1003,7 @@ vhost_scsi_handle_vq(struct vhost_scsi *vs, struct vhost_virtqueue *vq)
+ 			if (prot_bytes) {
+ 				exp_data_len -= prot_bytes;
+ 				prot_iter = data_iter;
++				iov_iter_truncate(&prot_iter, prot_bytes);
+ 				iov_iter_advance(&data_iter, prot_bytes);
+ 			}
+ 			tag = vhost64_to_cpu(vq, v_req_pi.tag);
+diff --git a/drivers/video/fbdev/aty/mach64_accel.c b/drivers/video/fbdev/aty/mach64_accel.c
+index 2541a0e0de76..3ad46255f990 100644
+--- a/drivers/video/fbdev/aty/mach64_accel.c
++++ b/drivers/video/fbdev/aty/mach64_accel.c
+@@ -127,7 +127,7 @@ void aty_init_engine(struct atyfb_par *par, struct fb_info *info)
+ 
+ 	/* set host attributes */
+ 	wait_for_fifo(13, par);
+-	aty_st_le32(HOST_CNTL, 0, par);
++	aty_st_le32(HOST_CNTL, HOST_BYTE_ALIGN, par);
+ 
+ 	/* set pattern attributes */
+ 	aty_st_le32(PAT_REG0, 0, par);
+@@ -233,7 +233,8 @@ void atyfb_copyarea(struct fb_info *info, const struct fb_copyarea *area)
+ 		rotation = rotation24bpp(dx, direction);
+ 	}
+ 
+-	wait_for_fifo(4, par);
++	wait_for_fifo(5, par);
++	aty_st_le32(DP_PIX_WIDTH, par->crtc.dp_pix_width, par);
+ 	aty_st_le32(DP_SRC, FRGD_SRC_BLIT, par);
+ 	aty_st_le32(SRC_Y_X, (sx << 16) | sy, par);
+ 	aty_st_le32(SRC_HEIGHT1_WIDTH1, (width << 16) | area->height, par);
+@@ -269,7 +270,8 @@ void atyfb_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
+ 		rotation = rotation24bpp(dx, DST_X_LEFT_TO_RIGHT);
+ 	}
+ 
+-	wait_for_fifo(3, par);
++	wait_for_fifo(4, par);
++	aty_st_le32(DP_PIX_WIDTH, par->crtc.dp_pix_width, par);
+ 	aty_st_le32(DP_FRGD_CLR, color, par);
+ 	aty_st_le32(DP_SRC,
+ 		    BKGD_SRC_BKGD_CLR | FRGD_SRC_FRGD_CLR | MONO_SRC_ONE,
+@@ -284,7 +286,7 @@ void atyfb_imageblit(struct fb_info *info, const struct fb_image *image)
+ {
+ 	struct atyfb_par *par = (struct atyfb_par *) info->par;
+ 	u32 src_bytes, dx = image->dx, dy = image->dy, width = image->width;
+-	u32 pix_width_save, pix_width, host_cntl, rotation = 0, src, mix;
++	u32 pix_width, rotation = 0, src, mix;
+ 
+ 	if (par->asleep)
+ 		return;
+@@ -296,8 +298,7 @@ void atyfb_imageblit(struct fb_info *info, const struct fb_image *image)
+ 		return;
+ 	}
+ 
+-	pix_width = pix_width_save = aty_ld_le32(DP_PIX_WIDTH, par);
+-	host_cntl = aty_ld_le32(HOST_CNTL, par) | HOST_BYTE_ALIGN;
++	pix_width = par->crtc.dp_pix_width;
+ 
+ 	switch (image->depth) {
+ 	case 1:
+@@ -345,7 +346,7 @@ void atyfb_imageblit(struct fb_info *info, const struct fb_image *image)
+ 		 * since Rage 3D IIc we have DP_HOST_TRIPLE_EN bit
+ 		 * this hwaccelerated triple has an issue with not aligned data
+ 		 */
+-		if (M64_HAS(HW_TRIPLE) && image->width % 8 == 0)
++		if (image->depth == 1 && M64_HAS(HW_TRIPLE) && image->width % 8 == 0)
+ 			pix_width |= DP_HOST_TRIPLE_EN;
+ 	}
+ 
+@@ -370,19 +371,18 @@ void atyfb_imageblit(struct fb_info *info, const struct fb_image *image)
+ 		mix = FRGD_MIX_D_XOR_S | BKGD_MIX_D;
+ 	}
+ 
+-	wait_for_fifo(6, par);
+-	aty_st_le32(DP_WRITE_MASK, 0xFFFFFFFF, par);
++	wait_for_fifo(5, par);
+ 	aty_st_le32(DP_PIX_WIDTH, pix_width, par);
+ 	aty_st_le32(DP_MIX, mix, par);
+ 	aty_st_le32(DP_SRC, src, par);
+-	aty_st_le32(HOST_CNTL, host_cntl, par);
++	aty_st_le32(HOST_CNTL, HOST_BYTE_ALIGN, par);
+ 	aty_st_le32(DST_CNTL, DST_Y_TOP_TO_BOTTOM | DST_X_LEFT_TO_RIGHT | rotation, par);
+ 
+ 	draw_rect(dx, dy, width, image->height, par);
+ 	src_bytes = (((image->width * image->depth) + 7) / 8) * image->height;
+ 
+ 	/* manual triple each pixel */
+-	if (info->var.bits_per_pixel == 24 && !(pix_width & DP_HOST_TRIPLE_EN)) {
++	if (image->depth == 1 && info->var.bits_per_pixel == 24 && !(pix_width & DP_HOST_TRIPLE_EN)) {
+ 		int inbit, outbit, mult24, byte_id_in_dword, width;
+ 		u8 *pbitmapin = (u8*)image->data, *pbitmapout;
+ 		u32 hostdword;
+@@ -415,7 +415,7 @@ void atyfb_imageblit(struct fb_info *info, const struct fb_image *image)
+ 				}
+ 			}
+ 			wait_for_fifo(1, par);
+-			aty_st_le32(HOST_DATA0, hostdword, par);
++			aty_st_le32(HOST_DATA0, le32_to_cpu(hostdword), par);
+ 		}
+ 	} else {
+ 		u32 *pbitmap, dwords = (src_bytes + 3) / 4;
+@@ -424,8 +424,4 @@ void atyfb_imageblit(struct fb_info *info, const struct fb_image *image)
+ 			aty_st_le32(HOST_DATA0, get_unaligned_le32(pbitmap), par);
+ 		}
+ 	}
+-
+-	/* restore pix_width */
+-	wait_for_fifo(1, par);
+-	aty_st_le32(DP_PIX_WIDTH, pix_width_save, par);
+ }
+diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c
+index 03c9e325bfbc..3a2f37ad1f89 100644
+--- a/fs/9p/vfs_file.c
++++ b/fs/9p/vfs_file.c
+@@ -204,6 +204,14 @@ static int v9fs_file_do_lock(struct file *filp, int cmd, struct file_lock *fl)
+ 			break;
+ 		if (schedule_timeout_interruptible(P9_LOCK_TIMEOUT) != 0)
+ 			break;
++		/*
++		 * p9_client_lock_dotl overwrites flock.client_id with the
++		 * server message, free and reuse the client name
++		 */
++		if (flock.client_id != fid->clnt->name) {
++			kfree(flock.client_id);
++			flock.client_id = fid->clnt->name;
++		}
+ 	}
+ 
+ 	/* map 9p status to VFS status */
+@@ -235,6 +243,8 @@ out_unlock:
+ 		locks_lock_file_wait(filp, fl);
+ 		fl->fl_type = fl_type;
+ 	}
++	if (flock.client_id != fid->clnt->name)
++		kfree(flock.client_id);
+ out:
+ 	return res;
+ }
+@@ -269,7 +279,7 @@ static int v9fs_file_getlock(struct file *filp, struct file_lock *fl)
+ 
+ 	res = p9_client_getlock_dotl(fid, &glock);
+ 	if (res < 0)
+-		return res;
++		goto out;
+ 	/* map 9p lock type to os lock type */
+ 	switch (glock.type) {
+ 	case P9_LOCK_TYPE_RDLCK:
+@@ -290,7 +300,9 @@ static int v9fs_file_getlock(struct file *filp, struct file_lock *fl)
+ 			fl->fl_end = glock.start + glock.length - 1;
+ 		fl->fl_pid = -glock.proc_id;
+ 	}
+-	kfree(glock.client_id);
++out:
++	if (glock.client_id != fid->clnt->name)
++		kfree(glock.client_id);
+ 	return res;
+ }
+ 
+diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
+index 5cf1bbe9754c..0e67cee73c53 100644
+--- a/fs/btrfs/disk-io.c
++++ b/fs/btrfs/disk-io.c
+@@ -4428,13 +4428,23 @@ static int btrfs_destroy_pinned_extent(struct btrfs_fs_info *fs_info,
+ 	unpin = pinned_extents;
+ again:
+ 	while (1) {
++		/*
++		 * The btrfs_finish_extent_commit() may get the same range as
++		 * ours between find_first_extent_bit and clear_extent_dirty.
++		 * Hence, hold the unused_bg_unpin_mutex to avoid double unpin
++		 * the same extent range.
++		 */
++		mutex_lock(&fs_info->unused_bg_unpin_mutex);
+ 		ret = find_first_extent_bit(unpin, 0, &start, &end,
+ 					    EXTENT_DIRTY, NULL);
+-		if (ret)
++		if (ret) {
++			mutex_unlock(&fs_info->unused_bg_unpin_mutex);
+ 			break;
++		}
+ 
+ 		clear_extent_dirty(unpin, start, end);
+ 		btrfs_error_unpin_extent_range(fs_info, start, end);
++		mutex_unlock(&fs_info->unused_bg_unpin_mutex);
+ 		cond_resched();
+ 	}
+ 
+diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
+index 90568a21fa77..1c340d6c8568 100644
+--- a/fs/btrfs/inode.c
++++ b/fs/btrfs/inode.c
+@@ -1565,12 +1565,11 @@ out_check:
+ 	}
+ 	btrfs_release_path(path);
+ 
+-	if (cur_offset <= end && cow_start == (u64)-1) {
++	if (cur_offset <= end && cow_start == (u64)-1)
+ 		cow_start = cur_offset;
+-		cur_offset = end;
+-	}
+ 
+ 	if (cow_start != (u64)-1) {
++		cur_offset = end;
+ 		ret = cow_file_range(inode, locked_page, cow_start, end, end,
+ 				     page_started, nr_written, 1, NULL);
+ 		if (ret)
+diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
+index 9333e4cda68d..cddd63b9103f 100644
+--- a/fs/btrfs/ioctl.c
++++ b/fs/btrfs/ioctl.c
+@@ -3178,6 +3178,8 @@ static int btrfs_extent_same(struct inode *src, u64 loff, u64 olen,
+ 			const u64 sz = BTRFS_I(src)->root->fs_info->sectorsize;
+ 
+ 			len = round_down(i_size_read(src), sz) - loff;
++			if (len == 0)
++				return 0;
+ 			olen = len;
+ 		}
+ 	}
+@@ -3907,9 +3909,17 @@ static noinline int btrfs_clone_files(struct file *file, struct file *file_src,
+ 		goto out_unlock;
+ 	if (len == 0)
+ 		olen = len = src->i_size - off;
+-	/* if we extend to eof, continue to block boundary */
+-	if (off + len == src->i_size)
++	/*
++	 * If we extend to eof, continue to block boundary if and only if the
++	 * destination end offset matches the destination file's size, otherwise
++	 * we would be corrupting data by placing the eof block into the middle
++	 * of a file.
++	 */
++	if (off + len == src->i_size) {
++		if (!IS_ALIGNED(len, bs) && destoff + len < inode->i_size)
++			goto out_unlock;
+ 		len = ALIGN(src->i_size, bs) - off;
++	}
+ 
+ 	if (len == 0) {
+ 		ret = 0;
+diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
+index d5124ed35154..a1492bdc6d03 100644
+--- a/fs/ceph/inode.c
++++ b/fs/ceph/inode.c
+@@ -1087,8 +1087,12 @@ static struct dentry *splice_dentry(struct dentry *dn, struct inode *in)
+ 	if (IS_ERR(realdn)) {
+ 		pr_err("splice_dentry error %ld %p inode %p ino %llx.%llx\n",
+ 		       PTR_ERR(realdn), dn, in, ceph_vinop(in));
+-		dput(dn);
+-		dn = realdn; /* note realdn contains the error */
++		dn = realdn;
++		/*
++		 * Caller should release 'dn' in the case of error.
++		 * If 'req->r_dentry' is passed to this function,
++		 * caller should leave 'req->r_dentry' untouched.
++		 */
+ 		goto out;
+ 	} else if (realdn) {
+ 		dout("dn %p (%d) spliced with %p (%d) "
+diff --git a/fs/configfs/symlink.c b/fs/configfs/symlink.c
+index c8aabba502f6..9993cdb81e7d 100644
+--- a/fs/configfs/symlink.c
++++ b/fs/configfs/symlink.c
+@@ -64,7 +64,7 @@ static void fill_item_path(struct config_item * item, char * buffer, int length)
+ 
+ 		/* back up enough to print this bus id with '/' */
+ 		length -= cur;
+-		strncpy(buffer + length,config_item_name(p),cur);
++		memcpy(buffer + length, config_item_name(p), cur);
+ 		*(buffer + --length) = '/';
+ 	}
+ }
+diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
+index 9808df52ceca..bd2bf83b1a1f 100644
+--- a/fs/ext4/inode.c
++++ b/fs/ext4/inode.c
+@@ -5671,9 +5671,10 @@ int ext4_mark_iloc_dirty(handle_t *handle,
+ {
+ 	int err = 0;
+ 
+-	if (unlikely(ext4_forced_shutdown(EXT4_SB(inode->i_sb))))
++	if (unlikely(ext4_forced_shutdown(EXT4_SB(inode->i_sb)))) {
++		put_bh(iloc->bh);
+ 		return -EIO;
+-
++	}
+ 	if (IS_I_VERSION(inode))
+ 		inode_inc_iversion(inode);
+ 
+diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
+index eb0d8ee39827..4e301b0cdfb5 100644
+--- a/fs/ext4/namei.c
++++ b/fs/ext4/namei.c
+@@ -125,6 +125,7 @@ static struct buffer_head *__ext4_read_dirblock(struct inode *inode,
+ 	if (!is_dx_block && type == INDEX) {
+ 		ext4_error_inode(inode, func, line, block,
+ 		       "directory leaf block found instead of index block");
++		brelse(bh);
+ 		return ERR_PTR(-EFSCORRUPTED);
+ 	}
+ 	if (!ext4_has_metadata_csum(inode->i_sb) ||
+@@ -2820,7 +2821,9 @@ int ext4_orphan_add(handle_t *handle, struct inode *inode)
+ 			list_del_init(&EXT4_I(inode)->i_orphan);
+ 			mutex_unlock(&sbi->s_orphan_lock);
+ 		}
+-	}
++	} else
++		brelse(iloc.bh);
++
+ 	jbd_debug(4, "superblock will point to %lu\n", inode->i_ino);
+ 	jbd_debug(4, "orphan inode %lu will point to %d\n",
+ 			inode->i_ino, NEXT_ORPHAN(inode));
+diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
+index e344e606c054..deebb8842c82 100644
+--- a/fs/ext4/resize.c
++++ b/fs/ext4/resize.c
+@@ -444,16 +444,18 @@ static int set_flexbg_block_bitmap(struct super_block *sb, handle_t *handle,
+ 
+ 		BUFFER_TRACE(bh, "get_write_access");
+ 		err = ext4_journal_get_write_access(handle, bh);
+-		if (err)
++		if (err) {
++			brelse(bh);
+ 			return err;
++		}
+ 		ext4_debug("mark block bitmap %#04llx (+%llu/%u)\n", block,
+ 			   block - start, count2);
+ 		ext4_set_bits(bh->b_data, block - start, count2);
+ 
+ 		err = ext4_handle_dirty_metadata(handle, NULL, bh);
++		brelse(bh);
+ 		if (unlikely(err))
+ 			return err;
+-		brelse(bh);
+ 	}
+ 
+ 	return 0;
+@@ -590,7 +592,6 @@ handle_bb:
+ 		bh = bclean(handle, sb, block);
+ 		if (IS_ERR(bh)) {
+ 			err = PTR_ERR(bh);
+-			bh = NULL;
+ 			goto out;
+ 		}
+ 		overhead = ext4_group_overhead_blocks(sb, group);
+@@ -602,9 +603,9 @@ handle_bb:
+ 		ext4_mark_bitmap_end(group_data[i].blocks_count,
+ 				     sb->s_blocksize * 8, bh->b_data);
+ 		err = ext4_handle_dirty_metadata(handle, NULL, bh);
++		brelse(bh);
+ 		if (err)
+ 			goto out;
+-		brelse(bh);
+ 
+ handle_ib:
+ 		if (bg_flags[i] & EXT4_BG_INODE_UNINIT)
+@@ -619,18 +620,16 @@ handle_ib:
+ 		bh = bclean(handle, sb, block);
+ 		if (IS_ERR(bh)) {
+ 			err = PTR_ERR(bh);
+-			bh = NULL;
+ 			goto out;
+ 		}
+ 
+ 		ext4_mark_bitmap_end(EXT4_INODES_PER_GROUP(sb),
+ 				     sb->s_blocksize * 8, bh->b_data);
+ 		err = ext4_handle_dirty_metadata(handle, NULL, bh);
++		brelse(bh);
+ 		if (err)
+ 			goto out;
+-		brelse(bh);
+ 	}
+-	bh = NULL;
+ 
+ 	/* Mark group tables in block bitmap */
+ 	for (j = 0; j < GROUP_TABLE_COUNT; j++) {
+@@ -661,7 +660,6 @@ handle_ib:
+ 	}
+ 
+ out:
+-	brelse(bh);
+ 	err2 = ext4_journal_stop(handle);
+ 	if (err2 && !err)
+ 		err = err2;
+@@ -848,6 +846,7 @@ static int add_new_gdb(handle_t *handle, struct inode *inode,
+ 	err = ext4_handle_dirty_metadata(handle, NULL, gdb_bh);
+ 	if (unlikely(err)) {
+ 		ext4_std_error(sb, err);
++		iloc.bh = NULL;
+ 		goto exit_inode;
+ 	}
+ 	brelse(dind);
+@@ -899,6 +898,7 @@ static int add_new_gdb_meta_bg(struct super_block *sb,
+ 				     sizeof(struct buffer_head *),
+ 				     GFP_NOFS);
+ 	if (!n_group_desc) {
++		brelse(gdb_bh);
+ 		err = -ENOMEM;
+ 		ext4_warning(sb, "not enough memory for %lu groups",
+ 			     gdb_num + 1);
+@@ -914,8 +914,6 @@ static int add_new_gdb_meta_bg(struct super_block *sb,
+ 	kvfree(o_group_desc);
+ 	BUFFER_TRACE(gdb_bh, "get_write_access");
+ 	err = ext4_journal_get_write_access(handle, gdb_bh);
+-	if (unlikely(err))
+-		brelse(gdb_bh);
+ 	return err;
+ }
+ 
+@@ -1097,8 +1095,10 @@ static void update_backups(struct super_block *sb, sector_t blk_off, char *data,
+ 			   backup_block, backup_block -
+ 			   ext4_group_first_block_no(sb, group));
+ 		BUFFER_TRACE(bh, "get_write_access");
+-		if ((err = ext4_journal_get_write_access(handle, bh)))
++		if ((err = ext4_journal_get_write_access(handle, bh))) {
++			brelse(bh);
+ 			break;
++		}
+ 		lock_buffer(bh);
+ 		memcpy(bh->b_data, data, size);
+ 		if (rest)
+@@ -1993,7 +1993,7 @@ retry:
+ 
+ 	err = ext4_alloc_flex_bg_array(sb, n_group + 1);
+ 	if (err)
+-		return err;
++		goto out;
+ 
+ 	err = ext4_mb_alloc_groupinfo(sb, n_group + 1);
+ 	if (err)
+@@ -2029,6 +2029,10 @@ retry:
+ 		n_blocks_count_retry = 0;
+ 		free_flex_gd(flex_gd);
+ 		flex_gd = NULL;
++		if (resize_inode) {
++			iput(resize_inode);
++			resize_inode = NULL;
++		}
+ 		goto retry;
+ 	}
+ 
+diff --git a/fs/ext4/super.c b/fs/ext4/super.c
+index 46ad267ef6d6..7fd64f5f70f0 100644
+--- a/fs/ext4/super.c
++++ b/fs/ext4/super.c
+@@ -4012,6 +4012,14 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
+ 	sbi->s_groups_count = blocks_count;
+ 	sbi->s_blockfile_groups = min_t(ext4_group_t, sbi->s_groups_count,
+ 			(EXT4_MAX_BLOCK_FILE_PHYS / EXT4_BLOCKS_PER_GROUP(sb)));
++	if (((u64)sbi->s_groups_count * sbi->s_inodes_per_group) !=
++	    le32_to_cpu(es->s_inodes_count)) {
++		ext4_msg(sb, KERN_ERR, "inodes count not valid: %u vs %llu",
++			 le32_to_cpu(es->s_inodes_count),
++			 ((u64)sbi->s_groups_count * sbi->s_inodes_per_group));
++		ret = -EINVAL;
++		goto failed_mount;
++	}
+ 	db_count = (sbi->s_groups_count + EXT4_DESC_PER_BLOCK(sb) - 1) /
+ 		   EXT4_DESC_PER_BLOCK(sb);
+ 	if (ext4_has_feature_meta_bg(sb)) {
+@@ -4031,14 +4039,6 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
+ 		ret = -ENOMEM;
+ 		goto failed_mount;
+ 	}
+-	if (((u64)sbi->s_groups_count * sbi->s_inodes_per_group) !=
+-	    le32_to_cpu(es->s_inodes_count)) {
+-		ext4_msg(sb, KERN_ERR, "inodes count not valid: %u vs %llu",
+-			 le32_to_cpu(es->s_inodes_count),
+-			 ((u64)sbi->s_groups_count * sbi->s_inodes_per_group));
+-		ret = -EINVAL;
+-		goto failed_mount;
+-	}
+ 
+ 	bgl_lock_init(sbi->s_blockgroup_lock);
+ 
+@@ -4442,6 +4442,7 @@ failed_mount6:
+ 	percpu_counter_destroy(&sbi->s_freeinodes_counter);
+ 	percpu_counter_destroy(&sbi->s_dirs_counter);
+ 	percpu_counter_destroy(&sbi->s_dirtyclusters_counter);
++	percpu_free_rwsem(&sbi->s_journal_flag_rwsem);
+ failed_mount5:
+ 	ext4_ext_release(sb);
+ 	ext4_release_system_zone(sb);
+diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c
+index 9bc50eef6127..a5923a1d0ff4 100644
+--- a/fs/ext4/xattr.c
++++ b/fs/ext4/xattr.c
+@@ -1387,6 +1387,12 @@ retry:
+ 		bh = ext4_getblk(handle, ea_inode, block, 0);
+ 		if (IS_ERR(bh))
+ 			return PTR_ERR(bh);
++		if (!bh) {
++			WARN_ON_ONCE(1);
++			EXT4_ERROR_INODE(ea_inode,
++					 "ext4_getblk() return bh = NULL");
++			return -EFSCORRUPTED;
++		}
+ 		ret = ext4_journal_get_write_access(handle, bh);
+ 		if (ret)
+ 			goto out;
+@@ -2275,8 +2281,10 @@ static struct buffer_head *ext4_xattr_get_block(struct inode *inode)
+ 	if (!bh)
+ 		return ERR_PTR(-EIO);
+ 	error = ext4_xattr_check_block(inode, bh);
+-	if (error)
++	if (error) {
++		brelse(bh);
+ 		return ERR_PTR(error);
++	}
+ 	return bh;
+ }
+ 
+@@ -2396,6 +2404,8 @@ retry_inode:
+ 			error = ext4_xattr_block_set(handle, inode, &i, &bs);
+ 		} else if (error == -ENOSPC) {
+ 			if (EXT4_I(inode)->i_file_acl && !bs.s.base) {
++				brelse(bs.bh);
++				bs.bh = NULL;
+ 				error = ext4_xattr_block_find(inode, &i, &bs);
+ 				if (error)
+ 					goto cleanup;
+@@ -2616,6 +2626,8 @@ out:
+ 	kfree(buffer);
+ 	if (is)
+ 		brelse(is->iloc.bh);
++	if (bs)
++		brelse(bs->bh);
+ 	kfree(is);
+ 	kfree(bs);
+ 
+@@ -2695,7 +2707,6 @@ int ext4_expand_extra_isize_ea(struct inode *inode, int new_extra_isize,
+ 			       struct ext4_inode *raw_inode, handle_t *handle)
+ {
+ 	struct ext4_xattr_ibody_header *header;
+-	struct buffer_head *bh;
+ 	struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
+ 	static unsigned int mnt_count;
+ 	size_t min_offs;
+@@ -2736,13 +2747,17 @@ retry:
+ 	 * EA block can hold new_extra_isize bytes.
+ 	 */
+ 	if (EXT4_I(inode)->i_file_acl) {
++		struct buffer_head *bh;
++
+ 		bh = sb_bread(inode->i_sb, EXT4_I(inode)->i_file_acl);
+ 		error = -EIO;
+ 		if (!bh)
+ 			goto cleanup;
+ 		error = ext4_xattr_check_block(inode, bh);
+-		if (error)
++		if (error) {
++			brelse(bh);
+ 			goto cleanup;
++		}
+ 		base = BHDR(bh);
+ 		end = bh->b_data + bh->b_size;
+ 		min_offs = end - base;
+diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
+index ee8105af4001..f7280c44cd4b 100644
+--- a/fs/fuse/dev.c
++++ b/fs/fuse/dev.c
+@@ -384,12 +384,19 @@ static void request_end(struct fuse_conn *fc, struct fuse_req *req)
+ 	if (test_bit(FR_BACKGROUND, &req->flags)) {
+ 		spin_lock(&fc->lock);
+ 		clear_bit(FR_BACKGROUND, &req->flags);
+-		if (fc->num_background == fc->max_background)
++		if (fc->num_background == fc->max_background) {
+ 			fc->blocked = 0;
+-
+-		/* Wake up next waiter, if any */
+-		if (!fc->blocked && waitqueue_active(&fc->blocked_waitq))
+ 			wake_up(&fc->blocked_waitq);
++		} else if (!fc->blocked) {
++			/*
++			 * Wake up next waiter, if any.  It's okay to use
++			 * waitqueue_active(), as we've already synced up
++			 * fc->blocked with waiters with the wake_up() call
++			 * above.
++			 */
++			if (waitqueue_active(&fc->blocked_waitq))
++				wake_up(&fc->blocked_waitq);
++		}
+ 
+ 		if (fc->num_background == fc->congestion_threshold && fc->sb) {
+ 			clear_bdi_congested(fc->sb->s_bdi, BLK_RW_SYNC);
+@@ -1309,12 +1316,14 @@ static ssize_t fuse_dev_do_read(struct fuse_dev *fud, struct file *file,
+ 		goto out_end;
+ 	}
+ 	list_move_tail(&req->list, &fpq->processing);
+-	spin_unlock(&fpq->lock);
++	__fuse_get_request(req);
+ 	set_bit(FR_SENT, &req->flags);
++	spin_unlock(&fpq->lock);
+ 	/* matches barrier in request_wait_answer() */
+ 	smp_mb__after_atomic();
+ 	if (test_bit(FR_INTERRUPTED, &req->flags))
+ 		queue_interrupt(fiq, req);
++	fuse_put_request(fc, req);
+ 
+ 	return reqsize;
+ 
+@@ -1712,8 +1721,10 @@ static int fuse_retrieve(struct fuse_conn *fc, struct inode *inode,
+ 	req->in.args[1].size = total_len;
+ 
+ 	err = fuse_request_send_notify_reply(fc, req, outarg->notify_unique);
+-	if (err)
++	if (err) {
+ 		fuse_retrieve_end(fc, req);
++		fuse_put_request(fc, req);
++	}
+ 
+ 	return err;
+ }
+@@ -1872,16 +1883,20 @@ static ssize_t fuse_dev_do_write(struct fuse_dev *fud,
+ 
+ 	/* Is it an interrupt reply? */
+ 	if (req->intr_unique == oh.unique) {
++		__fuse_get_request(req);
+ 		spin_unlock(&fpq->lock);
+ 
+ 		err = -EINVAL;
+-		if (nbytes != sizeof(struct fuse_out_header))
++		if (nbytes != sizeof(struct fuse_out_header)) {
++			fuse_put_request(fc, req);
+ 			goto err_finish;
++		}
+ 
+ 		if (oh.error == -ENOSYS)
+ 			fc->no_interrupt = 1;
+ 		else if (oh.error == -EAGAIN)
+ 			queue_interrupt(&fc->iq, req);
++		fuse_put_request(fc, req);
+ 
+ 		fuse_copy_finish(cs);
+ 		return nbytes;
+diff --git a/fs/fuse/file.c b/fs/fuse/file.c
+index fb4738ef162f..47d7a510be5b 100644
+--- a/fs/fuse/file.c
++++ b/fs/fuse/file.c
+@@ -2912,10 +2912,12 @@ fuse_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
+ 	}
+ 
+ 	if (io->async) {
++		bool blocking = io->blocking;
++
+ 		fuse_aio_complete(io, ret < 0 ? ret : 0, -1);
+ 
+ 		/* we have a non-extending, async request, so return */
+-		if (!io->blocking)
++		if (!blocking)
+ 			return -EIOCBQUEUED;
+ 
+ 		wait_for_completion(&wait);
+diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c
+index 5fe033131f03..b0eee90738ff 100644
+--- a/fs/gfs2/rgrp.c
++++ b/fs/gfs2/rgrp.c
+@@ -706,6 +706,7 @@ void gfs2_clear_rgrpd(struct gfs2_sbd *sdp)
+ 
+ 		if (gl) {
+ 			glock_clear_object(gl, rgd);
++			gfs2_rgrp_brelse(rgd);
+ 			gfs2_glock_put(gl);
+ 		}
+ 
+@@ -1115,7 +1116,7 @@ static u32 count_unlinked(struct gfs2_rgrpd *rgd)
+  * @rgd: the struct gfs2_rgrpd describing the RG to read in
+  *
+  * Read in all of a Resource Group's header and bitmap blocks.
+- * Caller must eventually call gfs2_rgrp_relse() to free the bitmaps.
++ * Caller must eventually call gfs2_rgrp_brelse() to free the bitmaps.
+  *
+  * Returns: errno
+  */
+diff --git a/fs/namespace.c b/fs/namespace.c
+index 9dc146e7b5e0..e9c13eedd739 100644
+--- a/fs/namespace.c
++++ b/fs/namespace.c
+@@ -1625,8 +1625,13 @@ static int do_umount(struct mount *mnt, int flags)
+ 
+ 	namespace_lock();
+ 	lock_mount_hash();
+-	event++;
+ 
++	/* Recheck MNT_LOCKED with the locks held */
++	retval = -EINVAL;
++	if (mnt->mnt.mnt_flags & MNT_LOCKED)
++		goto out;
++
++	event++;
+ 	if (flags & MNT_DETACH) {
+ 		if (!list_empty(&mnt->mnt_list))
+ 			umount_tree(mnt, UMOUNT_PROPAGATE);
+@@ -1640,6 +1645,7 @@ static int do_umount(struct mount *mnt, int flags)
+ 			retval = 0;
+ 		}
+ 	}
++out:
+ 	unlock_mount_hash();
+ 	namespace_unlock();
+ 	return retval;
+@@ -1730,7 +1736,7 @@ SYSCALL_DEFINE2(umount, char __user *, name, int, flags)
+ 		goto dput_and_out;
+ 	if (!check_mnt(mnt))
+ 		goto dput_and_out;
+-	if (mnt->mnt.mnt_flags & MNT_LOCKED)
++	if (mnt->mnt.mnt_flags & MNT_LOCKED) /* Check optimistically */
+ 		goto dput_and_out;
+ 	retval = -EPERM;
+ 	if (flags & MNT_FORCE && !capable(CAP_SYS_ADMIN))
+@@ -1808,8 +1814,14 @@ struct mount *copy_tree(struct mount *mnt, struct dentry *dentry,
+ 		for (s = r; s; s = next_mnt(s, r)) {
+ 			if (!(flag & CL_COPY_UNBINDABLE) &&
+ 			    IS_MNT_UNBINDABLE(s)) {
+-				s = skip_mnt_tree(s);
+-				continue;
++				if (s->mnt.mnt_flags & MNT_LOCKED) {
++					/* Both unbindable and locked. */
++					q = ERR_PTR(-EPERM);
++					goto out;
++				} else {
++					s = skip_mnt_tree(s);
++					continue;
++				}
+ 			}
+ 			if (!(flag & CL_COPY_MNT_NS_FILE) &&
+ 			    is_mnt_ns_file(s->mnt.mnt_root)) {
+@@ -1862,7 +1874,7 @@ void drop_collected_mounts(struct vfsmount *mnt)
+ {
+ 	namespace_lock();
+ 	lock_mount_hash();
+-	umount_tree(real_mount(mnt), UMOUNT_SYNC);
++	umount_tree(real_mount(mnt), 0);
+ 	unlock_mount_hash();
+ 	namespace_unlock();
+ }
+diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
+index 6d16399a350e..ee765abad2ef 100644
+--- a/fs/nfsd/nfs4proc.c
++++ b/fs/nfsd/nfs4proc.c
+@@ -1049,6 +1049,9 @@ nfsd4_verify_copy(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
+ {
+ 	__be32 status;
+ 
++	if (!cstate->save_fh.fh_dentry)
++		return nfserr_nofilehandle;
++
+ 	status = nfs4_preprocess_stateid_op(rqstp, cstate, &cstate->save_fh,
+ 					    src_stateid, RD_STATE, src, NULL);
+ 	if (status) {
+diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c
+index d1516327b787..99550f4bd159 100644
+--- a/fs/ocfs2/aops.c
++++ b/fs/ocfs2/aops.c
+@@ -2404,8 +2404,16 @@ static int ocfs2_dio_end_io(struct kiocb *iocb,
+ 	/* this io's submitter should not have unlocked this before we could */
+ 	BUG_ON(!ocfs2_iocb_is_rw_locked(iocb));
+ 
+-	if (bytes > 0 && private)
+-		ret = ocfs2_dio_end_io_write(inode, private, offset, bytes);
++	if (bytes <= 0)
++		mlog_ratelimited(ML_ERROR, "Direct IO failed, bytes = %lld",
++				 (long long)bytes);
++	if (private) {
++		if (bytes > 0)
++			ret = ocfs2_dio_end_io_write(inode, private, offset,
++						     bytes);
++		else
++			ocfs2_dio_free_write_ctx(inode, private);
++	}
+ 
+ 	ocfs2_iocb_clear_rw_locked(iocb);
+ 
+diff --git a/fs/ocfs2/cluster/masklog.h b/fs/ocfs2/cluster/masklog.h
+index 308ea0eb35fd..a396096a5099 100644
+--- a/fs/ocfs2/cluster/masklog.h
++++ b/fs/ocfs2/cluster/masklog.h
+@@ -178,6 +178,15 @@ do {									\
+ 			      ##__VA_ARGS__);				\
+ } while (0)
+ 
++#define mlog_ratelimited(mask, fmt, ...)				\
++do {									\
++	static DEFINE_RATELIMIT_STATE(_rs,				\
++				      DEFAULT_RATELIMIT_INTERVAL,	\
++				      DEFAULT_RATELIMIT_BURST);		\
++	if (__ratelimit(&_rs))						\
++		mlog(mask, fmt, ##__VA_ARGS__);				\
++} while (0)
++
+ #define mlog_errno(st) ({						\
+ 	int _st = (st);							\
+ 	if (_st != -ERESTARTSYS && _st != -EINTR &&			\
+diff --git a/fs/ocfs2/dir.c b/fs/ocfs2/dir.c
+index febe6312ceff..3c26f2dfedf1 100644
+--- a/fs/ocfs2/dir.c
++++ b/fs/ocfs2/dir.c
+@@ -1896,8 +1896,7 @@ static int ocfs2_dir_foreach_blk_el(struct inode *inode,
+ 				/* On error, skip the f_pos to the
+ 				   next block. */
+ 				ctx->pos = (ctx->pos | (sb->s_blocksize - 1)) + 1;
+-				brelse(bh);
+-				continue;
++				break;
+ 			}
+ 			if (le64_to_cpu(de->inode)) {
+ 				unsigned char d_type = DT_UNKNOWN;
+diff --git a/fs/overlayfs/dir.c b/fs/overlayfs/dir.c
+index cc961a3bd3bd..ef11fa7b869e 100644
+--- a/fs/overlayfs/dir.c
++++ b/fs/overlayfs/dir.c
+@@ -392,6 +392,10 @@ static int ovl_create_over_whiteout(struct dentry *dentry, struct inode *inode,
+ 	if (IS_ERR(upper))
+ 		goto out_dput;
+ 
++	err = -ESTALE;
++	if (d_is_negative(upper) || !IS_WHITEOUT(d_inode(upper)))
++		goto out_dput2;
++
+ 	err = ovl_create_real(wdir, newdentry, cattr, hardlink, true);
+ 	if (err)
+ 		goto out_dput2;
+@@ -595,6 +599,11 @@ static int ovl_link(struct dentry *old, struct inode *newdir,
+ 	if (err)
+ 		goto out_drop_write;
+ 
++	err = ovl_copy_up(new->d_parent);
++	if (err)
++		goto out_drop_write;
++
++
+ 	err = ovl_nlink_start(old, &locked);
+ 	if (err)
+ 		goto out_drop_write;
+diff --git a/fs/overlayfs/namei.c b/fs/overlayfs/namei.c
+index d9468de3c951..8442f9839c90 100644
+--- a/fs/overlayfs/namei.c
++++ b/fs/overlayfs/namei.c
+@@ -368,8 +368,10 @@ int ovl_verify_origin(struct dentry *dentry, struct vfsmount *mnt,
+ 
+ 	fh = ovl_encode_fh(origin, is_upper);
+ 	err = PTR_ERR(fh);
+-	if (IS_ERR(fh))
++	if (IS_ERR(fh)) {
++		fh = NULL;
+ 		goto fail;
++	}
+ 
+ 	err = ovl_verify_origin_fh(dentry, fh);
+ 	if (set && err == -ENODATA)
+diff --git a/include/linux/ceph/libceph.h b/include/linux/ceph/libceph.h
+index c2ec44cf5098..d3b04f9589a9 100644
+--- a/include/linux/ceph/libceph.h
++++ b/include/linux/ceph/libceph.h
+@@ -81,7 +81,13 @@ struct ceph_options {
+ 
+ #define CEPH_MSG_MAX_FRONT_LEN	(16*1024*1024)
+ #define CEPH_MSG_MAX_MIDDLE_LEN	(16*1024*1024)
+-#define CEPH_MSG_MAX_DATA_LEN	(16*1024*1024)
++
++/*
++ * Handle the largest possible rbd object in one message.
++ * There is no limit on the size of cephfs objects, but it has to obey
++ * rsize and wsize mount options anyway.
++ */
++#define CEPH_MSG_MAX_DATA_LEN	(32*1024*1024)
+ 
+ #define CEPH_AUTH_NAME_DEFAULT   "guest"
+ 
+diff --git a/include/linux/i8253.h b/include/linux/i8253.h
+index e6bb36a97519..8336b2f6f834 100644
+--- a/include/linux/i8253.h
++++ b/include/linux/i8253.h
+@@ -21,6 +21,7 @@
+ #define PIT_LATCH	((PIT_TICK_RATE + HZ/2) / HZ)
+ 
+ extern raw_spinlock_t i8253_lock;
++extern bool i8253_clear_counter_on_shutdown;
+ extern struct clock_event_device i8253_clockevent;
+ extern void clockevent_i8253_init(bool oneshot);
+ 
+diff --git a/include/linux/nmi.h b/include/linux/nmi.h
+index b8d868d23e79..50d143995338 100644
+--- a/include/linux/nmi.h
++++ b/include/linux/nmi.h
+@@ -113,6 +113,8 @@ static inline int hardlockup_detector_perf_init(void) { return 0; }
+ void watchdog_nmi_stop(void);
+ void watchdog_nmi_start(void);
+ int watchdog_nmi_probe(void);
++int watchdog_nmi_enable(unsigned int cpu);
++void watchdog_nmi_disable(unsigned int cpu);
+ 
+ /**
+  * touch_nmi_watchdog - restart NMI watchdog timeout.
+diff --git a/include/xen/xen-ops.h b/include/xen/xen-ops.h
+index a95e65ec83c3..8d3786f290d9 100644
+--- a/include/xen/xen-ops.h
++++ b/include/xen/xen-ops.h
+@@ -40,7 +40,7 @@ int xen_setup_shutdown_event(void);
+ 
+ extern unsigned long *xen_contiguous_bitmap;
+ 
+-#ifdef CONFIG_XEN_PV
++#if defined(CONFIG_XEN_PV) || defined(CONFIG_ARM) || defined(CONFIG_ARM64)
+ int xen_create_contiguous_region(phys_addr_t pstart, unsigned int order,
+ 				unsigned int address_bits,
+ 				dma_addr_t *dma_handle);
+diff --git a/kernel/debug/kdb/kdb_bt.c b/kernel/debug/kdb/kdb_bt.c
+index 6ad4a9fcbd6f..7921ae4fca8d 100644
+--- a/kernel/debug/kdb/kdb_bt.c
++++ b/kernel/debug/kdb/kdb_bt.c
+@@ -179,14 +179,14 @@ kdb_bt(int argc, const char **argv)
+ 				kdb_printf("no process for cpu %ld\n", cpu);
+ 				return 0;
+ 			}
+-			sprintf(buf, "btt 0x%p\n", KDB_TSK(cpu));
++			sprintf(buf, "btt 0x%px\n", KDB_TSK(cpu));
+ 			kdb_parse(buf);
+ 			return 0;
+ 		}
+ 		kdb_printf("btc: cpu status: ");
+ 		kdb_parse("cpu\n");
+ 		for_each_online_cpu(cpu) {
+-			sprintf(buf, "btt 0x%p\n", KDB_TSK(cpu));
++			sprintf(buf, "btt 0x%px\n", KDB_TSK(cpu));
+ 			kdb_parse(buf);
+ 			touch_nmi_watchdog();
+ 		}
+diff --git a/kernel/debug/kdb/kdb_main.c b/kernel/debug/kdb/kdb_main.c
+index 07aefa8dbee8..993db6b2348e 100644
+--- a/kernel/debug/kdb/kdb_main.c
++++ b/kernel/debug/kdb/kdb_main.c
+@@ -1182,7 +1182,7 @@ static int kdb_local(kdb_reason_t reason, int error, struct pt_regs *regs,
+ 	if (reason == KDB_REASON_DEBUG) {
+ 		/* special case below */
+ 	} else {
+-		kdb_printf("\nEntering kdb (current=0x%p, pid %d) ",
++		kdb_printf("\nEntering kdb (current=0x%px, pid %d) ",
+ 			   kdb_current, kdb_current ? kdb_current->pid : 0);
+ #if defined(CONFIG_SMP)
+ 		kdb_printf("on processor %d ", raw_smp_processor_id());
+@@ -1198,7 +1198,7 @@ static int kdb_local(kdb_reason_t reason, int error, struct pt_regs *regs,
+ 		 */
+ 		switch (db_result) {
+ 		case KDB_DB_BPT:
+-			kdb_printf("\nEntering kdb (0x%p, pid %d) ",
++			kdb_printf("\nEntering kdb (0x%px, pid %d) ",
+ 				   kdb_current, kdb_current->pid);
+ #if defined(CONFIG_SMP)
+ 			kdb_printf("on processor %d ", raw_smp_processor_id());
+@@ -2037,7 +2037,7 @@ static int kdb_lsmod(int argc, const char **argv)
+ 		if (mod->state == MODULE_STATE_UNFORMED)
+ 			continue;
+ 
+-		kdb_printf("%-20s%8u  0x%p ", mod->name,
++		kdb_printf("%-20s%8u  0x%px ", mod->name,
+ 			   mod->core_layout.size, (void *)mod);
+ #ifdef CONFIG_MODULE_UNLOAD
+ 		kdb_printf("%4d ", module_refcount(mod));
+@@ -2048,7 +2048,7 @@ static int kdb_lsmod(int argc, const char **argv)
+ 			kdb_printf(" (Loading)");
+ 		else
+ 			kdb_printf(" (Live)");
+-		kdb_printf(" 0x%p", mod->core_layout.base);
++		kdb_printf(" 0x%px", mod->core_layout.base);
+ 
+ #ifdef CONFIG_MODULE_UNLOAD
+ 		{
+@@ -2330,7 +2330,7 @@ void kdb_ps1(const struct task_struct *p)
+ 		return;
+ 
+ 	cpu = kdb_process_cpu(p);
+-	kdb_printf("0x%p %8d %8d  %d %4d   %c  0x%p %c%s\n",
++	kdb_printf("0x%px %8d %8d  %d %4d   %c  0x%px %c%s\n",
+ 		   (void *)p, p->pid, p->parent->pid,
+ 		   kdb_task_has_cpu(p), kdb_process_cpu(p),
+ 		   kdb_task_state_char(p),
+@@ -2343,7 +2343,7 @@ void kdb_ps1(const struct task_struct *p)
+ 		} else {
+ 			if (KDB_TSK(cpu) != p)
+ 				kdb_printf("  Error: does not match running "
+-				   "process table (0x%p)\n", KDB_TSK(cpu));
++				   "process table (0x%px)\n", KDB_TSK(cpu));
+ 		}
+ 	}
+ }
+@@ -2722,7 +2722,7 @@ int kdb_register_flags(char *cmd,
+ 	for_each_kdbcmd(kp, i) {
+ 		if (kp->cmd_name && (strcmp(kp->cmd_name, cmd) == 0)) {
+ 			kdb_printf("Duplicate kdb command registered: "
+-				"%s, func %p help %s\n", cmd, func, help);
++				"%s, func %px help %s\n", cmd, func, help);
+ 			return 1;
+ 		}
+ 	}
+diff --git a/kernel/debug/kdb/kdb_support.c b/kernel/debug/kdb/kdb_support.c
+index d35cc2d3a4cc..84422d2b95c0 100644
+--- a/kernel/debug/kdb/kdb_support.c
++++ b/kernel/debug/kdb/kdb_support.c
+@@ -40,7 +40,7 @@
+ int kdbgetsymval(const char *symname, kdb_symtab_t *symtab)
+ {
+ 	if (KDB_DEBUG(AR))
+-		kdb_printf("kdbgetsymval: symname=%s, symtab=%p\n", symname,
++		kdb_printf("kdbgetsymval: symname=%s, symtab=%px\n", symname,
+ 			   symtab);
+ 	memset(symtab, 0, sizeof(*symtab));
+ 	symtab->sym_start = kallsyms_lookup_name(symname);
+@@ -88,7 +88,7 @@ int kdbnearsym(unsigned long addr, kdb_symtab_t *symtab)
+ 	char *knt1 = NULL;
+ 
+ 	if (KDB_DEBUG(AR))
+-		kdb_printf("kdbnearsym: addr=0x%lx, symtab=%p\n", addr, symtab);
++		kdb_printf("kdbnearsym: addr=0x%lx, symtab=%px\n", addr, symtab);
+ 	memset(symtab, 0, sizeof(*symtab));
+ 
+ 	if (addr < 4096)
+@@ -149,7 +149,7 @@ int kdbnearsym(unsigned long addr, kdb_symtab_t *symtab)
+ 		symtab->mod_name = "kernel";
+ 	if (KDB_DEBUG(AR))
+ 		kdb_printf("kdbnearsym: returns %d symtab->sym_start=0x%lx, "
+-		   "symtab->mod_name=%p, symtab->sym_name=%p (%s)\n", ret,
++		   "symtab->mod_name=%px, symtab->sym_name=%px (%s)\n", ret,
+ 		   symtab->sym_start, symtab->mod_name, symtab->sym_name,
+ 		   symtab->sym_name);
+ 
+@@ -887,13 +887,13 @@ void debug_kusage(void)
+ 		   __func__, dah_first);
+ 	if (dah_first) {
+ 		h_used = (struct debug_alloc_header *)debug_alloc_pool;
+-		kdb_printf("%s: h_used %p size %d\n", __func__, h_used,
++		kdb_printf("%s: h_used %px size %d\n", __func__, h_used,
+ 			   h_used->size);
+ 	}
+ 	do {
+ 		h_used = (struct debug_alloc_header *)
+ 			  ((char *)h_free + dah_overhead + h_free->size);
+-		kdb_printf("%s: h_used %p size %d caller %p\n",
++		kdb_printf("%s: h_used %px size %d caller %px\n",
+ 			   __func__, h_used, h_used->size, h_used->caller);
+ 		h_free = (struct debug_alloc_header *)
+ 			  (debug_alloc_pool + h_free->next);
+@@ -902,7 +902,7 @@ void debug_kusage(void)
+ 		  ((char *)h_free + dah_overhead + h_free->size);
+ 	if ((char *)h_used - debug_alloc_pool !=
+ 	    sizeof(debug_alloc_pool_aligned))
+-		kdb_printf("%s: h_used %p size %d caller %p\n",
++		kdb_printf("%s: h_used %px size %d caller %px\n",
+ 			   __func__, h_used, h_used->size, h_used->caller);
+ out:
+ 	spin_unlock(&dap_lock);
+diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
+index 7161312593dd..a9cf2e15f6a3 100644
+--- a/kernel/printk/printk.c
++++ b/kernel/printk/printk.c
+@@ -1762,6 +1762,12 @@ asmlinkage int vprintk_emit(int facility, int level,
+ 
+ 	/* If called from the scheduler, we can not call up(). */
+ 	if (!in_sched) {
++		/*
++		 * Disable preemption to avoid being preempted while holding
++		 * console_sem which would prevent anyone from printing to
++		 * console
++		 */
++		preempt_disable();
+ 		/*
+ 		 * Try to acquire and then immediately release the console
+ 		 * semaphore.  The release will print out buffers and wake up
+@@ -1769,6 +1775,7 @@ asmlinkage int vprintk_emit(int facility, int level,
+ 		 */
+ 		if (console_trylock())
+ 			console_unlock();
++		preempt_enable();
+ 	}
+ 
+ 	return printed_len;
+@@ -2083,20 +2090,7 @@ int console_trylock(void)
+ 		return 0;
+ 	}
+ 	console_locked = 1;
+-	/*
+-	 * When PREEMPT_COUNT disabled we can't reliably detect if it's
+-	 * safe to schedule (e.g. calling printk while holding a spin_lock),
+-	 * because preempt_disable()/preempt_enable() are just barriers there
+-	 * and preempt_count() is always 0.
+-	 *
+-	 * RCU read sections have a separate preemption counter when
+-	 * PREEMPT_RCU enabled thus we must take extra care and check
+-	 * rcu_preempt_depth(), otherwise RCU read sections modify
+-	 * preempt_count().
+-	 */
+-	console_may_schedule = !oops_in_progress &&
+-			preemptible() &&
+-			!rcu_preempt_depth();
++	console_may_schedule = 0;
+ 	return 1;
+ }
+ EXPORT_SYMBOL(console_trylock);
+diff --git a/lib/ubsan.c b/lib/ubsan.c
+index 50d1d5c25deb..60e108c5c173 100644
+--- a/lib/ubsan.c
++++ b/lib/ubsan.c
+@@ -451,8 +451,7 @@ void __ubsan_handle_shift_out_of_bounds(struct shift_out_of_bounds_data *data,
+ EXPORT_SYMBOL(__ubsan_handle_shift_out_of_bounds);
+ 
+ 
+-void __noreturn
+-__ubsan_handle_builtin_unreachable(struct unreachable_data *data)
++void __ubsan_handle_builtin_unreachable(struct unreachable_data *data)
+ {
+ 	unsigned long flags;
+ 
+diff --git a/mm/hugetlb.c b/mm/hugetlb.c
+index e073099083ca..f46040aed2da 100644
+--- a/mm/hugetlb.c
++++ b/mm/hugetlb.c
+@@ -3211,7 +3211,7 @@ static int is_hugetlb_entry_hwpoisoned(pte_t pte)
+ int copy_hugetlb_page_range(struct mm_struct *dst, struct mm_struct *src,
+ 			    struct vm_area_struct *vma)
+ {
+-	pte_t *src_pte, *dst_pte, entry;
++	pte_t *src_pte, *dst_pte, entry, dst_entry;
+ 	struct page *ptepage;
+ 	unsigned long addr;
+ 	int cow;
+@@ -3239,15 +3239,30 @@ int copy_hugetlb_page_range(struct mm_struct *dst, struct mm_struct *src,
+ 			break;
+ 		}
+ 
+-		/* If the pagetables are shared don't copy or take references */
+-		if (dst_pte == src_pte)
++		/*
++		 * If the pagetables are shared don't copy or take references.
++		 * dst_pte == src_pte is the common case of src/dest sharing.
++		 *
++		 * However, src could have 'unshared' and dst shares with
++		 * another vma.  If dst_pte !none, this implies sharing.
++		 * Check here before taking page table lock, and once again
++		 * after taking the lock below.
++		 */
++		dst_entry = huge_ptep_get(dst_pte);
++		if ((dst_pte == src_pte) || !huge_pte_none(dst_entry))
+ 			continue;
+ 
+ 		dst_ptl = huge_pte_lock(h, dst, dst_pte);
+ 		src_ptl = huge_pte_lockptr(h, src, src_pte);
+ 		spin_lock_nested(src_ptl, SINGLE_DEPTH_NESTING);
+ 		entry = huge_ptep_get(src_pte);
+-		if (huge_pte_none(entry)) { /* skip none entry */
++		dst_entry = huge_ptep_get(dst_pte);
++		if (huge_pte_none(entry) || !huge_pte_none(dst_entry)) {
++			/*
++			 * Skip if src entry none.  Also, skip in the
++			 * unlikely case dst entry !none as this implies
++			 * sharing with another vma.
++			 */
+ 			;
+ 		} else if (unlikely(is_hugetlb_entry_migration(entry) ||
+ 				    is_hugetlb_entry_hwpoisoned(entry))) {
+diff --git a/mm/mempolicy.c b/mm/mempolicy.c
+index ecbda7f5d494..1b93535d875f 100644
+--- a/mm/mempolicy.c
++++ b/mm/mempolicy.c
+@@ -2012,8 +2012,36 @@ alloc_pages_vma(gfp_t gfp, int order, struct vm_area_struct *vma,
+ 		nmask = policy_nodemask(gfp, pol);
+ 		if (!nmask || node_isset(hpage_node, *nmask)) {
+ 			mpol_cond_put(pol);
+-			page = __alloc_pages_node(hpage_node,
+-						gfp | __GFP_THISNODE, order);
++			/*
++			 * We cannot invoke reclaim if __GFP_THISNODE
++			 * is set. Invoking reclaim with
++			 * __GFP_THISNODE set, would cause THP
++			 * allocations to trigger heavy swapping
++			 * despite there may be tons of free memory
++			 * (including potentially plenty of THP
++			 * already available in the buddy) on all the
++			 * other NUMA nodes.
++			 *
++			 * At most we could invoke compaction when
++			 * __GFP_THISNODE is set (but we would need to
++			 * refrain from invoking reclaim even if
++			 * compaction returned COMPACT_SKIPPED because
++			 * there wasn't not enough memory to succeed
++			 * compaction). For now just avoid
++			 * __GFP_THISNODE instead of limiting the
++			 * allocation path to a strict and single
++			 * compaction invocation.
++			 *
++			 * Supposedly if direct reclaim was enabled by
++			 * the caller, the app prefers THP regardless
++			 * of the node it comes from so this would be
++			 * more desiderable behavior than only
++			 * providing THP originated from the local
++			 * node in such case.
++			 */
++			if (!(gfp & __GFP_DIRECT_RECLAIM))
++				gfp |= __GFP_THISNODE;
++			page = __alloc_pages_node(hpage_node, gfp, order);
+ 			goto out;
+ 		}
+ 	}
+diff --git a/mm/swapfile.c b/mm/swapfile.c
+index 8cbc7d6fd52e..08e8cd21770c 100644
+--- a/mm/swapfile.c
++++ b/mm/swapfile.c
+@@ -2830,7 +2830,7 @@ static struct swap_info_struct *alloc_swap_info(void)
+ 	unsigned int type;
+ 	int i;
+ 
+-	p = kzalloc(sizeof(*p), GFP_KERNEL);
++	p = kvzalloc(sizeof(*p), GFP_KERNEL);
+ 	if (!p)
+ 		return ERR_PTR(-ENOMEM);
+ 
+@@ -2841,7 +2841,7 @@ static struct swap_info_struct *alloc_swap_info(void)
+ 	}
+ 	if (type >= MAX_SWAPFILES) {
+ 		spin_unlock(&swap_lock);
+-		kfree(p);
++		kvfree(p);
+ 		return ERR_PTR(-EPERM);
+ 	}
+ 	if (type >= nr_swapfiles) {
+@@ -2855,7 +2855,7 @@ static struct swap_info_struct *alloc_swap_info(void)
+ 		smp_wmb();
+ 		nr_swapfiles++;
+ 	} else {
+-		kfree(p);
++		kvfree(p);
+ 		p = swap_info[type];
+ 		/*
+ 		 * Do not memset this entry: a racing procfs swap_next()
+diff --git a/net/9p/protocol.c b/net/9p/protocol.c
+index 16e10680518c..9743837aebc6 100644
+--- a/net/9p/protocol.c
++++ b/net/9p/protocol.c
+@@ -46,10 +46,15 @@ p9pdu_writef(struct p9_fcall *pdu, int proto_version, const char *fmt, ...);
+ void p9stat_free(struct p9_wstat *stbuf)
+ {
+ 	kfree(stbuf->name);
++	stbuf->name = NULL;
+ 	kfree(stbuf->uid);
++	stbuf->uid = NULL;
+ 	kfree(stbuf->gid);
++	stbuf->gid = NULL;
+ 	kfree(stbuf->muid);
++	stbuf->muid = NULL;
+ 	kfree(stbuf->extension);
++	stbuf->extension = NULL;
+ }
+ EXPORT_SYMBOL(p9stat_free);
+ 
+diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c
+index a268acc48af0..b793b55d1488 100644
+--- a/net/netfilter/nf_conntrack_core.c
++++ b/net/netfilter/nf_conntrack_core.c
+@@ -932,19 +932,22 @@ static unsigned int early_drop_list(struct net *net,
+ 	return drops;
+ }
+ 
+-static noinline int early_drop(struct net *net, unsigned int _hash)
++static noinline int early_drop(struct net *net, unsigned int hash)
+ {
+-	unsigned int i;
++	unsigned int i, bucket;
+ 
+ 	for (i = 0; i < NF_CT_EVICTION_RANGE; i++) {
+ 		struct hlist_nulls_head *ct_hash;
+-		unsigned int hash, hsize, drops;
++		unsigned int hsize, drops;
+ 
+ 		rcu_read_lock();
+ 		nf_conntrack_get_ht(&ct_hash, &hsize);
+-		hash = reciprocal_scale(_hash++, hsize);
++		if (!i)
++			bucket = reciprocal_scale(hash, hsize);
++		else
++			bucket = (bucket + 1) % hsize;
+ 
+-		drops = early_drop_list(net, &ct_hash[hash]);
++		drops = early_drop_list(net, &ct_hash[bucket]);
+ 		rcu_read_unlock();
+ 
+ 		if (drops) {
+diff --git a/net/sunrpc/xdr.c b/net/sunrpc/xdr.c
+index e34f4ee7f2b6..13695ba8fc54 100644
+--- a/net/sunrpc/xdr.c
++++ b/net/sunrpc/xdr.c
+@@ -639,11 +639,10 @@ void xdr_truncate_encode(struct xdr_stream *xdr, size_t len)
+ 		WARN_ON_ONCE(xdr->iov);
+ 		return;
+ 	}
+-	if (fraglen) {
++	if (fraglen)
+ 		xdr->end = head->iov_base + head->iov_len;
+-		xdr->page_ptr--;
+-	}
+ 	/* (otherwise assume xdr->end is already set) */
++	xdr->page_ptr--;
+ 	head->iov_len = len;
+ 	buf->len = len;
+ 	xdr->p = head->iov_base + head->iov_len;
+diff --git a/tools/testing/selftests/powerpc/tm/tm-tmspr.c b/tools/testing/selftests/powerpc/tm/tm-tmspr.c
+index 2bda81c7bf23..df1d7d4b1c89 100644
+--- a/tools/testing/selftests/powerpc/tm/tm-tmspr.c
++++ b/tools/testing/selftests/powerpc/tm/tm-tmspr.c
+@@ -98,7 +98,7 @@ void texasr(void *in)
+ 
+ int test_tmspr()
+ {
+-	pthread_t 	thread;
++	pthread_t	*thread;
+ 	int	   	thread_num;
+ 	unsigned long	i;
+ 
+@@ -107,21 +107,28 @@ int test_tmspr()
+ 	/* To cause some context switching */
+ 	thread_num = 10 * sysconf(_SC_NPROCESSORS_ONLN);
+ 
++	thread = malloc(thread_num * sizeof(pthread_t));
++	if (thread == NULL)
++		return EXIT_FAILURE;
++
+ 	/* Test TFIAR and TFHAR */
+-	for (i = 0 ; i < thread_num ; i += 2){
+-		if (pthread_create(&thread, NULL, (void*)tfiar_tfhar, (void *)i))
++	for (i = 0; i < thread_num; i += 2) {
++		if (pthread_create(&thread[i], NULL, (void *)tfiar_tfhar,
++				   (void *)i))
+ 			return EXIT_FAILURE;
+ 	}
+-	if (pthread_join(thread, NULL) != 0)
+-		return EXIT_FAILURE;
+-
+ 	/* Test TEXASR */
+-	for (i = 0 ; i < thread_num ; i++){
+-		if (pthread_create(&thread, NULL, (void*)texasr, (void *)i))
++	for (i = 1; i < thread_num; i += 2) {
++		if (pthread_create(&thread[i], NULL, (void *)texasr, (void *)i))
+ 			return EXIT_FAILURE;
+ 	}
+-	if (pthread_join(thread, NULL) != 0)
+-		return EXIT_FAILURE;
++
++	for (i = 0; i < thread_num; i++) {
++		if (pthread_join(thread[i], NULL) != 0)
++			return EXIT_FAILURE;
++	}
++
++	free(thread);
+ 
+ 	if (passed)
+ 		return 0;