[gentoo-commits] proj/linux-patches:4.4 commit in: /

[Mike Pagano]

commit:     71e504d3855667b208f140088528957e52cd3289
Author:     Mike Pagano <mpagano <AT> gentoo <DOT> org>
AuthorDate: Sat Mar 31 23:00:08 2018 +0000
Commit:     Mike Pagano <mpagano <AT> gentoo <DOT> org>
CommitDate: Sat Mar 31 23:00:08 2018 +0000
URL:        https://gitweb.gentoo.org/proj/linux-patches.git/commit/?id=71e504d3

Linux patch 4.4.125

 0000_README              |    4 +
 1124_linux-4.4.125.patch | 1326 ++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 1330 insertions(+)

diff --git a/0000_README b/0000_README
index fd31be4..a22a4ac 100644
--- a/0000_README
+++ b/0000_README
@@ -539,6 +539,10 @@ Patch:  1123_linux-4.4.124.patch
 From:   http://www.kernel.org
 Desc:   Linux 4.4.124
 
+Patch:  1124_linux-4.4.125.patch
+From:   http://www.kernel.org
+Desc:   Linux 4.4.125
+
 Patch:  1125_linux-4.4.125.patch
 From:   http://www.kernel.org
 Desc:   Linux 4.4.125

diff --git a/1124_linux-4.4.125.patch b/1124_linux-4.4.125.patch
new file mode 100644
index 0000000..162b4b8
--- /dev/null
+++ b/1124_linux-4.4.125.patch
@@ -0,0 +1,1326 @@
+diff --git a/Makefile b/Makefile
+index bbaf3fd0d1ef..7dcafa5dcd34 100644
+--- a/Makefile
++++ b/Makefile
+@@ -1,6 +1,6 @@
+ VERSION = 4
+ PATCHLEVEL = 4
+-SUBLEVEL = 124
++SUBLEVEL = 125
+ EXTRAVERSION =
+ NAME = Blurry Fish Butt
+ 
+@@ -784,6 +784,15 @@ KBUILD_CFLAGS += $(call cc-disable-warning, pointer-sign)
+ # disable invalid "can't wrap" optimizations for signed / pointers
+ KBUILD_CFLAGS	+= $(call cc-option,-fno-strict-overflow)
+ 
++# clang sets -fmerge-all-constants by default as optimization, but this
++# is non-conforming behavior for C and in fact breaks the kernel, so we
++# need to disable it here generally.
++KBUILD_CFLAGS	+= $(call cc-option,-fno-merge-all-constants)
++
++# for gcc -fno-merge-all-constants disables everything, but it is fine
++# to have actual conforming behavior enabled.
++KBUILD_CFLAGS	+= $(call cc-option,-fmerge-constants)
++
+ # Make sure -fstack-check isn't enabled (like gentoo apparently did)
+ KBUILD_CFLAGS  += $(call cc-option,-fno-stack-check,)
+ 
+diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
+index 653735a8c58a..51ac84e0812d 100644
+--- a/arch/arm64/mm/mmu.c
++++ b/arch/arm64/mm/mmu.c
+@@ -697,3 +697,15 @@ void *__init fixmap_remap_fdt(phys_addr_t dt_phys)
+ 
+ 	return dt_virt;
+ }
++
++#ifdef CONFIG_HAVE_ARCH_HUGE_VMAP
++int pud_free_pmd_page(pud_t *pud)
++{
++	return pud_none(*pud);
++}
++
++int pmd_free_pte_page(pmd_t *pmd)
++{
++	return pmd_none(*pmd);
++}
++#endif
+diff --git a/arch/mips/ralink/reset.c b/arch/mips/ralink/reset.c
+index ee117c4bc4a3..8037a4bd84fd 100644
+--- a/arch/mips/ralink/reset.c
++++ b/arch/mips/ralink/reset.c
+@@ -96,16 +96,9 @@ static void ralink_restart(char *command)
+ 	unreachable();
+ }
+ 
+-static void ralink_halt(void)
+-{
+-	local_irq_disable();
+-	unreachable();
+-}
+-
+ static int __init mips_reboot_setup(void)
+ {
+ 	_machine_restart = ralink_restart;
+-	_machine_halt = ralink_halt;
+ 
+ 	return 0;
+ }
+diff --git a/arch/x86/Makefile b/arch/x86/Makefile
+index 1f9caa041bf7..d2c663aeccba 100644
+--- a/arch/x86/Makefile
++++ b/arch/x86/Makefile
+@@ -179,6 +179,15 @@ KBUILD_CFLAGS += $(cfi) $(cfi-sigframe) $(cfi-sections) $(asinstr) $(avx_instr)
+ 
+ LDFLAGS := -m elf_$(UTS_MACHINE)
+ 
++#
++# The 64-bit kernel must be aligned to 2MB.  Pass -z max-page-size=0x200000 to
++# the linker to force 2MB page size regardless of the default page size used
++# by the linker.
++#
++ifdef CONFIG_X86_64
++LDFLAGS += $(call ld-option, -z max-page-size=0x200000)
++endif
++
+ # Speed up the build
+ KBUILD_CFLAGS += -pipe
+ # Workaround for a gcc prelease that unfortunately was shipped in a suse release
+diff --git a/arch/x86/boot/compressed/misc.c b/arch/x86/boot/compressed/misc.c
+index 79dac1758e7c..16df89c30c20 100644
+--- a/arch/x86/boot/compressed/misc.c
++++ b/arch/x86/boot/compressed/misc.c
+@@ -366,6 +366,10 @@ static void parse_elf(void *output)
+ 
+ 		switch (phdr->p_type) {
+ 		case PT_LOAD:
++#ifdef CONFIG_X86_64
++			if ((phdr->p_align % 0x200000) != 0)
++				error("Alignment of LOAD segment isn't multiple of 2MB");
++#endif
+ #ifdef CONFIG_RELOCATABLE
+ 			dest = output;
+ 			dest += (phdr->p_paddr - LOAD_PHYSICAL_ADDR);
+diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S
+index 59a4e1604a36..92b840c94f17 100644
+--- a/arch/x86/entry/entry_64.S
++++ b/arch/x86/entry/entry_64.S
+@@ -1018,7 +1018,7 @@ apicinterrupt3 HYPERVISOR_CALLBACK_VECTOR \
+ #endif /* CONFIG_HYPERV */
+ 
+ idtentry debug			do_debug		has_error_code=0	paranoid=1 shift_ist=DEBUG_STACK
+-idtentry int3			do_int3			has_error_code=0	paranoid=1 shift_ist=DEBUG_STACK
++idtentry int3			do_int3			has_error_code=0
+ idtentry stack_segment		do_stack_segment	has_error_code=1
+ 
+ #ifdef CONFIG_XEN
+diff --git a/arch/x86/include/asm/vmx.h b/arch/x86/include/asm/vmx.h
+index 6b6e16d813b9..dd11f5cb4149 100644
+--- a/arch/x86/include/asm/vmx.h
++++ b/arch/x86/include/asm/vmx.h
+@@ -310,6 +310,7 @@ enum vmcs_field {
+ #define INTR_TYPE_NMI_INTR		(2 << 8) /* NMI */
+ #define INTR_TYPE_HARD_EXCEPTION	(3 << 8) /* processor exception */
+ #define INTR_TYPE_SOFT_INTR             (4 << 8) /* software interrupt */
++#define INTR_TYPE_PRIV_SW_EXCEPTION	(5 << 8) /* ICE breakpoint - undocumented */
+ #define INTR_TYPE_SOFT_EXCEPTION	(6 << 8) /* software exception */
+ 
+ /* GUEST_INTERRUPTIBILITY_INFO flags. */
+diff --git a/arch/x86/kernel/cpu/perf_event_intel.c b/arch/x86/kernel/cpu/perf_event_intel.c
+index 5cc2242d77c6..7b79c80ce029 100644
+--- a/arch/x86/kernel/cpu/perf_event_intel.c
++++ b/arch/x86/kernel/cpu/perf_event_intel.c
+@@ -2716,7 +2716,7 @@ static unsigned bdw_limit_period(struct perf_event *event, unsigned left)
+ 			X86_CONFIG(.event=0xc0, .umask=0x01)) {
+ 		if (left < 128)
+ 			left = 128;
+-		left &= ~0x3fu;
++		left &= ~0x3fULL;
+ 	}
+ 	return left;
+ }
+diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
+index 22b81f35c500..1fbd2631be60 100644
+--- a/arch/x86/kernel/traps.c
++++ b/arch/x86/kernel/traps.c
+@@ -480,7 +480,6 @@ do_general_protection(struct pt_regs *regs, long error_code)
+ }
+ NOKPROBE_SYMBOL(do_general_protection);
+ 
+-/* May run on IST stack. */
+ dotraplinkage void notrace do_int3(struct pt_regs *regs, long error_code)
+ {
+ #ifdef CONFIG_DYNAMIC_FTRACE
+@@ -495,7 +494,15 @@ dotraplinkage void notrace do_int3(struct pt_regs *regs, long error_code)
+ 	if (poke_int3_handler(regs))
+ 		return;
+ 
++	/*
++	 * Use ist_enter despite the fact that we don't use an IST stack.
++	 * We can be called from a kprobe in non-CONTEXT_KERNEL kernel
++	 * mode or even during context tracking state changes.
++	 *
++	 * This means that we can't schedule.  That's okay.
++	 */
+ 	ist_enter(regs);
++
+ 	RCU_LOCKDEP_WARN(!rcu_is_watching(), "entry code didn't wake RCU");
+ #ifdef CONFIG_KGDB_LOW_LEVEL_TRAP
+ 	if (kgdb_ll_trap(DIE_INT3, "int3", regs, error_code, X86_TRAP_BP,
+@@ -512,15 +519,9 @@ dotraplinkage void notrace do_int3(struct pt_regs *regs, long error_code)
+ 			SIGTRAP) == NOTIFY_STOP)
+ 		goto exit;
+ 
+-	/*
+-	 * Let others (NMI) know that the debug stack is in use
+-	 * as we may switch to the interrupt stack.
+-	 */
+-	debug_stack_usage_inc();
+ 	preempt_conditional_sti(regs);
+ 	do_trap(X86_TRAP_BP, SIGTRAP, "int3", regs, error_code, NULL);
+ 	preempt_conditional_cli(regs);
+-	debug_stack_usage_dec();
+ exit:
+ 	ist_exit(regs);
+ }
+@@ -886,19 +887,16 @@ void __init trap_init(void)
+ 	cpu_init();
+ 
+ 	/*
+-	 * X86_TRAP_DB and X86_TRAP_BP have been set
+-	 * in early_trap_init(). However, ITS works only after
+-	 * cpu_init() loads TSS. See comments in early_trap_init().
++	 * X86_TRAP_DB was installed in early_trap_init(). However,
++	 * IST works only after cpu_init() loads TSS. See comments
++	 * in early_trap_init().
+ 	 */
+ 	set_intr_gate_ist(X86_TRAP_DB, &debug, DEBUG_STACK);
+-	/* int3 can be called from all */
+-	set_system_intr_gate_ist(X86_TRAP_BP, &int3, DEBUG_STACK);
+ 
+ 	x86_init.irqs.trap_init();
+ 
+ #ifdef CONFIG_X86_64
+ 	memcpy(&debug_idt_table, &idt_table, IDT_ENTRIES * 16);
+ 	set_nmi_gate(X86_TRAP_DB, &debug);
+-	set_nmi_gate(X86_TRAP_BP, &int3);
+ #endif
+ }
+diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
+index 849517805eef..46bbc69844bd 100644
+--- a/arch/x86/kvm/vmx.c
++++ b/arch/x86/kvm/vmx.c
+@@ -1011,6 +1011,13 @@ static inline bool is_machine_check(u32 intr_info)
+ 		(INTR_TYPE_HARD_EXCEPTION | MC_VECTOR | INTR_INFO_VALID_MASK);
+ }
+ 
++/* Undocumented: icebp/int1 */
++static inline bool is_icebp(u32 intr_info)
++{
++	return (intr_info & (INTR_INFO_INTR_TYPE_MASK | INTR_INFO_VALID_MASK))
++		== (INTR_TYPE_PRIV_SW_EXCEPTION | INTR_INFO_VALID_MASK);
++}
++
+ static inline bool cpu_has_vmx_msr_bitmap(void)
+ {
+ 	return vmcs_config.cpu_based_exec_ctrl & CPU_BASED_USE_MSR_BITMAPS;
+@@ -5333,7 +5340,7 @@ static int handle_exception(struct kvm_vcpu *vcpu)
+ 		      (KVM_GUESTDBG_SINGLESTEP | KVM_GUESTDBG_USE_HW_BP))) {
+ 			vcpu->arch.dr6 &= ~15;
+ 			vcpu->arch.dr6 |= dr6 | DR6_RTM;
+-			if (!(dr6 & ~DR6_RESERVED)) /* icebp */
++			if (is_icebp(intr_info))
+ 				skip_emulated_instruction(vcpu);
+ 
+ 			kvm_queue_exception(vcpu, DB_VECTOR);
+diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c
+index dbc27a2b4ad5..c013326a0d7a 100644
+--- a/arch/x86/mm/pgtable.c
++++ b/arch/x86/mm/pgtable.c
+@@ -666,4 +666,52 @@ int pmd_clear_huge(pmd_t *pmd)
+ 
+ 	return 0;
+ }
++
++/**
++ * pud_free_pmd_page - Clear pud entry and free pmd page.
++ * @pud: Pointer to a PUD.
++ *
++ * Context: The pud range has been unmaped and TLB purged.
++ * Return: 1 if clearing the entry succeeded. 0 otherwise.
++ */
++int pud_free_pmd_page(pud_t *pud)
++{
++	pmd_t *pmd;
++	int i;
++
++	if (pud_none(*pud))
++		return 1;
++
++	pmd = (pmd_t *)pud_page_vaddr(*pud);
++
++	for (i = 0; i < PTRS_PER_PMD; i++)
++		if (!pmd_free_pte_page(&pmd[i]))
++			return 0;
++
++	pud_clear(pud);
++	free_page((unsigned long)pmd);
++
++	return 1;
++}
++
++/**
++ * pmd_free_pte_page - Clear pmd entry and free pte page.
++ * @pmd: Pointer to a PMD.
++ *
++ * Context: The pmd range has been unmaped and TLB purged.
++ * Return: 1 if clearing the entry succeeded. 0 otherwise.
++ */
++int pmd_free_pte_page(pmd_t *pmd)
++{
++	pte_t *pte;
++
++	if (pmd_none(*pmd))
++		return 1;
++
++	pte = (pte_t *)pmd_page_vaddr(*pmd);
++	pmd_clear(pmd);
++	free_page((unsigned long)pte);
++
++	return 1;
++}
+ #endif	/* CONFIG_HAVE_ARCH_HUGE_VMAP */
+diff --git a/arch/x86/net/bpf_jit_comp.c b/arch/x86/net/bpf_jit_comp.c
+index a889211e21c5..dd9a861fd526 100644
+--- a/arch/x86/net/bpf_jit_comp.c
++++ b/arch/x86/net/bpf_jit_comp.c
+@@ -1077,7 +1077,7 @@ void bpf_int_jit_compile(struct bpf_prog *prog)
+ 	 * may converge on the last pass. In such case do one more
+ 	 * pass to emit the final image
+ 	 */
+-	for (pass = 0; pass < 10 || image; pass++) {
++	for (pass = 0; pass < 20 || image; pass++) {
+ 		proglen = do_jit(prog, addrs, image, oldproglen, &ctx);
+ 		if (proglen <= 0) {
+ 			image = NULL;
+@@ -1100,6 +1100,7 @@ void bpf_int_jit_compile(struct bpf_prog *prog)
+ 				goto out;
+ 		}
+ 		oldproglen = proglen;
++		cond_resched();
+ 	}
+ 
+ 	if (bpf_jit_enable > 1)
+diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
+index d176e0ece470..2946e2846573 100644
+--- a/drivers/acpi/numa.c
++++ b/drivers/acpi/numa.c
+@@ -103,25 +103,27 @@ int acpi_map_pxm_to_node(int pxm)
+  */
+ int acpi_map_pxm_to_online_node(int pxm)
+ {
+-	int node, n, dist, min_dist;
++	int node, min_node;
+ 
+ 	node = acpi_map_pxm_to_node(pxm);
+ 
+ 	if (node == NUMA_NO_NODE)
+ 		node = 0;
+ 
++	min_node = node;
+ 	if (!node_online(node)) {
+-		min_dist = INT_MAX;
++		int min_dist = INT_MAX, dist, n;
++
+ 		for_each_online_node(n) {
+ 			dist = node_distance(node, n);
+ 			if (dist < min_dist) {
+ 				min_dist = dist;
+-				node = n;
++				min_node = n;
+ 			}
+ 		}
+ 	}
+ 
+-	return node;
++	return min_node;
+ }
+ EXPORT_SYMBOL(acpi_map_pxm_to_online_node);
+ 
+diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
+index 8ddf5d5c94fd..5a6a01135470 100644
+--- a/drivers/ata/ahci.c
++++ b/drivers/ata/ahci.c
+@@ -538,7 +538,9 @@ static const struct pci_device_id ahci_pci_tbl[] = {
+ 	  .driver_data = board_ahci_yes_fbs },
+ 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9230),
+ 	  .driver_data = board_ahci_yes_fbs },
+-	{ PCI_DEVICE(PCI_VENDOR_ID_TTI, 0x0642),
++	{ PCI_DEVICE(PCI_VENDOR_ID_TTI, 0x0642), /* highpoint rocketraid 642L */
++	  .driver_data = board_ahci_yes_fbs },
++	{ PCI_DEVICE(PCI_VENDOR_ID_TTI, 0x0645), /* highpoint rocketraid 644L */
+ 	  .driver_data = board_ahci_yes_fbs },
+ 
+ 	/* Promise */
+diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
+index 69ec1c5d7152..2d677ba46d77 100644
+--- a/drivers/ata/libata-core.c
++++ b/drivers/ata/libata-core.c
+@@ -4224,6 +4224,25 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = {
+ 	{ "PIONEER DVD-RW  DVR-212D",	NULL,	ATA_HORKAGE_NOSETXFER },
+ 	{ "PIONEER DVD-RW  DVR-216D",	NULL,	ATA_HORKAGE_NOSETXFER },
+ 
++	/* Crucial BX100 SSD 500GB has broken LPM support */
++	{ "CT500BX100SSD1",		NULL,	ATA_HORKAGE_NOLPM },
++
++	/* 512GB MX100 with MU01 firmware has both queued TRIM and LPM issues */
++	{ "Crucial_CT512MX100*",	"MU01",	ATA_HORKAGE_NO_NCQ_TRIM |
++						ATA_HORKAGE_ZERO_AFTER_TRIM |
++						ATA_HORKAGE_NOLPM, },
++	/* 512GB MX100 with newer firmware has only LPM issues */
++	{ "Crucial_CT512MX100*",	NULL,	ATA_HORKAGE_ZERO_AFTER_TRIM |
++						ATA_HORKAGE_NOLPM, },
++
++	/* 480GB+ M500 SSDs have both queued TRIM and LPM issues */
++	{ "Crucial_CT480M500*",		NULL,	ATA_HORKAGE_NO_NCQ_TRIM |
++						ATA_HORKAGE_ZERO_AFTER_TRIM |
++						ATA_HORKAGE_NOLPM, },
++	{ "Crucial_CT960M500*",		NULL,	ATA_HORKAGE_NO_NCQ_TRIM |
++						ATA_HORKAGE_ZERO_AFTER_TRIM |
++						ATA_HORKAGE_NOLPM, },
++
+ 	/* devices that don't properly handle queued TRIM commands */
+ 	{ "Micron_M500_*",		NULL,	ATA_HORKAGE_NO_NCQ_TRIM |
+ 						ATA_HORKAGE_ZERO_AFTER_TRIM, },
+@@ -4235,7 +4254,9 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = {
+ 						ATA_HORKAGE_ZERO_AFTER_TRIM, },
+ 	{ "Crucial_CT*MX100*",		"MU01",	ATA_HORKAGE_NO_NCQ_TRIM |
+ 						ATA_HORKAGE_ZERO_AFTER_TRIM, },
+-	{ "Samsung SSD 8*",		NULL,	ATA_HORKAGE_NO_NCQ_TRIM |
++	{ "Samsung SSD 840*",		NULL,	ATA_HORKAGE_NO_NCQ_TRIM |
++						ATA_HORKAGE_ZERO_AFTER_TRIM, },
++	{ "Samsung SSD 850*",		NULL,	ATA_HORKAGE_NO_NCQ_TRIM |
+ 						ATA_HORKAGE_ZERO_AFTER_TRIM, },
+ 	{ "FCCT*M500*",			NULL,	ATA_HORKAGE_NO_NCQ_TRIM |
+ 						ATA_HORKAGE_ZERO_AFTER_TRIM, },
+@@ -5077,8 +5098,7 @@ void ata_qc_issue(struct ata_queued_cmd *qc)
+ 	 * We guarantee to LLDs that they will have at least one
+ 	 * non-zero sg if the command is a data command.
+ 	 */
+-	if (WARN_ON_ONCE(ata_is_data(prot) &&
+-			 (!qc->sg || !qc->n_elem || !qc->nbytes)))
++	if (ata_is_data(prot) && (!qc->sg || !qc->n_elem || !qc->nbytes))
+ 		goto sys_err;
+ 
+ 	if (ata_is_dma(prot) || (ata_is_pio(prot) &&
+diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
+index 5b2aee83d776..4a267347a6d9 100644
+--- a/drivers/ata/libata-scsi.c
++++ b/drivers/ata/libata-scsi.c
+@@ -3472,7 +3472,9 @@ static inline int __ata_scsi_queuecmd(struct scsi_cmnd *scmd,
+ 		if (likely((scsi_op != ATA_16) || !atapi_passthru16)) {
+ 			/* relay SCSI command to ATAPI device */
+ 			int len = COMMAND_SIZE(scsi_op);
+-			if (unlikely(len > scmd->cmd_len || len > dev->cdb_len))
++			if (unlikely(len > scmd->cmd_len ||
++				     len > dev->cdb_len ||
++				     scmd->cmd_len > ATAPI_CDB_LEN))
+ 				goto bad_cdb_len;
+ 
+ 			xlat_func = atapi_xlat;
+diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
+index 54cef3dc0beb..7fca7cfd5b09 100644
+--- a/drivers/bluetooth/btusb.c
++++ b/drivers/bluetooth/btusb.c
+@@ -216,7 +216,6 @@ static const struct usb_device_id blacklist_table[] = {
+ 	{ USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
+ 	{ USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
+ 	{ USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
+-	{ USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
+ 	{ USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
+ 	{ USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
+ 	{ USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
+@@ -247,6 +246,7 @@ static const struct usb_device_id blacklist_table[] = {
+ 	{ USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
+ 
+ 	/* QCA ROME chipset */
++	{ USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_QCA_ROME },
+ 	{ USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME },
+ 	{ USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME },
+ 	{ USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME },
+diff --git a/drivers/clk/bcm/clk-bcm2835.c b/drivers/clk/bcm/clk-bcm2835.c
+index 35ab89fe9d7b..7c4b1ffe874f 100644
+--- a/drivers/clk/bcm/clk-bcm2835.c
++++ b/drivers/clk/bcm/clk-bcm2835.c
+@@ -912,8 +912,10 @@ static int bcm2835_pll_on(struct clk_hw *hw)
+ 		     ~A2W_PLL_CTRL_PWRDN);
+ 
+ 	/* Take the PLL out of reset. */
++	spin_lock(&cprman->regs_lock);
+ 	cprman_write(cprman, data->cm_ctrl_reg,
+ 		     cprman_read(cprman, data->cm_ctrl_reg) & ~CM_PLL_ANARST);
++	spin_unlock(&cprman->regs_lock);
+ 
+ 	/* Wait for the PLL to lock. */
+ 	timeout = ktime_add_ns(ktime_get(), LOCK_TIMEOUT_NS);
+@@ -997,9 +999,11 @@ static int bcm2835_pll_set_rate(struct clk_hw *hw,
+ 	}
+ 
+ 	/* Unmask the reference clock from the oscillator. */
++	spin_lock(&cprman->regs_lock);
+ 	cprman_write(cprman, A2W_XOSC_CTRL,
+ 		     cprman_read(cprman, A2W_XOSC_CTRL) |
+ 		     data->reference_enable_mask);
++	spin_unlock(&cprman->regs_lock);
+ 
+ 	if (do_ana_setup_first)
+ 		bcm2835_pll_write_ana(cprman, data->ana_reg_base, ana);
+diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c
+index 3feaab94f358..1a2a7365d0b5 100644
+--- a/drivers/gpu/drm/radeon/radeon_connectors.c
++++ b/drivers/gpu/drm/radeon/radeon_connectors.c
+@@ -89,25 +89,18 @@ void radeon_connector_hotplug(struct drm_connector *connector)
+ 		/* don't do anything if sink is not display port, i.e.,
+ 		 * passive dp->(dvi|hdmi) adaptor
+ 		 */
+-		if (dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) {
+-			int saved_dpms = connector->dpms;
+-			/* Only turn off the display if it's physically disconnected */
+-			if (!radeon_hpd_sense(rdev, radeon_connector->hpd.hpd)) {
+-				drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
+-			} else if (radeon_dp_needs_link_train(radeon_connector)) {
+-				/* Don't try to start link training before we
+-				 * have the dpcd */
+-				if (!radeon_dp_getdpcd(radeon_connector))
+-					return;
+-
+-				/* set it to OFF so that drm_helper_connector_dpms()
+-				 * won't return immediately since the current state
+-				 * is ON at this point.
+-				 */
+-				connector->dpms = DRM_MODE_DPMS_OFF;
+-				drm_helper_connector_dpms(connector, DRM_MODE_DPMS_ON);
+-			}
+-			connector->dpms = saved_dpms;
++		if (dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT &&
++		    radeon_hpd_sense(rdev, radeon_connector->hpd.hpd) &&
++		    radeon_dp_needs_link_train(radeon_connector)) {
++			/* Don't start link training before we have the DPCD */
++			if (!radeon_dp_getdpcd(radeon_connector))
++				return;
++
++			/* Turn the connector off and back on immediately, which
++			 * will trigger link training
++			 */
++			drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
++			drm_helper_connector_dpms(connector, DRM_MODE_DPMS_ON);
+ 		}
+ 	}
+ }
+diff --git a/drivers/gpu/drm/udl/udl_fb.c b/drivers/gpu/drm/udl/udl_fb.c
+index 73e41a8613da..29bd801f5dad 100644
+--- a/drivers/gpu/drm/udl/udl_fb.c
++++ b/drivers/gpu/drm/udl/udl_fb.c
+@@ -256,10 +256,15 @@ static int udl_fb_mmap(struct fb_info *info, struct vm_area_struct *vma)
+ {
+ 	unsigned long start = vma->vm_start;
+ 	unsigned long size = vma->vm_end - vma->vm_start;
+-	unsigned long offset = vma->vm_pgoff << PAGE_SHIFT;
++	unsigned long offset;
+ 	unsigned long page, pos;
+ 
+-	if (offset + size > info->fix.smem_len)
++	if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT))
++		return -EINVAL;
++
++	offset = vma->vm_pgoff << PAGE_SHIFT;
++
++	if (offset > info->fix.smem_len || size > info->fix.smem_len - offset)
+ 		return -EINVAL;
+ 
+ 	pos = (unsigned long)info->fix.smem_start + offset;
+diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
+index 060e5c6f4446..098e562bd579 100644
+--- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
++++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
+@@ -27,7 +27,6 @@
+ 
+ #include "vmwgfx_kms.h"
+ 
+-
+ /* Might need a hrtimer here? */
+ #define VMWGFX_PRESENT_RATE ((HZ / 60 > 0) ? HZ / 60 : 1)
+ 
+@@ -1910,9 +1909,12 @@ void vmw_kms_helper_buffer_finish(struct vmw_private *dev_priv,
+  * Helper to be used if an error forces the caller to undo the actions of
+  * vmw_kms_helper_resource_prepare.
+  */
+-void vmw_kms_helper_resource_revert(struct vmw_resource *res)
++void vmw_kms_helper_resource_revert(struct vmw_validation_ctx *ctx)
+ {
+-	vmw_kms_helper_buffer_revert(res->backup);
++	struct vmw_resource *res = ctx->res;
++
++	vmw_kms_helper_buffer_revert(ctx->buf);
++	vmw_dmabuf_unreference(&ctx->buf);
+ 	vmw_resource_unreserve(res, false, NULL, 0);
+ 	mutex_unlock(&res->dev_priv->cmdbuf_mutex);
+ }
+@@ -1929,10 +1931,14 @@ void vmw_kms_helper_resource_revert(struct vmw_resource *res)
+  * interrupted by a signal.
+  */
+ int vmw_kms_helper_resource_prepare(struct vmw_resource *res,
+-				    bool interruptible)
++				    bool interruptible,
++				    struct vmw_validation_ctx *ctx)
+ {
+ 	int ret = 0;
+ 
++	ctx->buf = NULL;
++	ctx->res = res;
++
+ 	if (interruptible)
+ 		ret = mutex_lock_interruptible(&res->dev_priv->cmdbuf_mutex);
+ 	else
+@@ -1951,6 +1957,8 @@ int vmw_kms_helper_resource_prepare(struct vmw_resource *res,
+ 						    res->dev_priv->has_mob);
+ 		if (ret)
+ 			goto out_unreserve;
++
++		ctx->buf = vmw_dmabuf_reference(res->backup);
+ 	}
+ 	ret = vmw_resource_validate(res);
+ 	if (ret)
+@@ -1958,7 +1966,7 @@ int vmw_kms_helper_resource_prepare(struct vmw_resource *res,
+ 	return 0;
+ 
+ out_revert:
+-	vmw_kms_helper_buffer_revert(res->backup);
++	vmw_kms_helper_buffer_revert(ctx->buf);
+ out_unreserve:
+ 	vmw_resource_unreserve(res, false, NULL, 0);
+ out_unlock:
+@@ -1974,11 +1982,13 @@ out_unlock:
+  * @out_fence: Optional pointer to a fence pointer. If non-NULL, a
+  * ref-counted fence pointer is returned here.
+  */
+-void vmw_kms_helper_resource_finish(struct vmw_resource *res,
+-			     struct vmw_fence_obj **out_fence)
++void vmw_kms_helper_resource_finish(struct vmw_validation_ctx *ctx,
++				    struct vmw_fence_obj **out_fence)
+ {
+-	if (res->backup || out_fence)
+-		vmw_kms_helper_buffer_finish(res->dev_priv, NULL, res->backup,
++	struct vmw_resource *res = ctx->res;
++
++	if (ctx->buf || out_fence)
++		vmw_kms_helper_buffer_finish(res->dev_priv, NULL, ctx->buf,
+ 					     out_fence, NULL);
+ 
+ 	vmw_resource_unreserve(res, false, NULL, 0);
+diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.h b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.h
+index edd81503516d..63b05d5ee50a 100644
+--- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.h
++++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.h
+@@ -180,6 +180,11 @@ struct vmw_display_unit {
+ 	bool is_implicit;
+ };
+ 
++struct vmw_validation_ctx {
++	struct vmw_resource *res;
++	struct vmw_dma_buffer *buf;
++};
++
+ #define vmw_crtc_to_du(x) \
+ 	container_of(x, struct vmw_display_unit, crtc)
+ #define vmw_connector_to_du(x) \
+@@ -230,9 +235,10 @@ void vmw_kms_helper_buffer_finish(struct vmw_private *dev_priv,
+ 				  struct drm_vmw_fence_rep __user *
+ 				  user_fence_rep);
+ int vmw_kms_helper_resource_prepare(struct vmw_resource *res,
+-				    bool interruptible);
+-void vmw_kms_helper_resource_revert(struct vmw_resource *res);
+-void vmw_kms_helper_resource_finish(struct vmw_resource *res,
++				    bool interruptible,
++				    struct vmw_validation_ctx *ctx);
++void vmw_kms_helper_resource_revert(struct vmw_validation_ctx *ctx);
++void vmw_kms_helper_resource_finish(struct vmw_validation_ctx *ctx,
+ 				    struct vmw_fence_obj **out_fence);
+ int vmw_kms_readback(struct vmw_private *dev_priv,
+ 		     struct drm_file *file_priv,
+diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c b/drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c
+index 13926ff192e3..f50fcd213413 100644
+--- a/drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c
++++ b/drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c
+@@ -841,12 +841,13 @@ int vmw_kms_sou_do_surface_dirty(struct vmw_private *dev_priv,
+ 	struct vmw_framebuffer_surface *vfbs =
+ 		container_of(framebuffer, typeof(*vfbs), base);
+ 	struct vmw_kms_sou_surface_dirty sdirty;
++	struct vmw_validation_ctx ctx;
+ 	int ret;
+ 
+ 	if (!srf)
+ 		srf = &vfbs->surface->res;
+ 
+-	ret = vmw_kms_helper_resource_prepare(srf, true);
++	ret = vmw_kms_helper_resource_prepare(srf, true, &ctx);
+ 	if (ret)
+ 		return ret;
+ 
+@@ -865,7 +866,7 @@ int vmw_kms_sou_do_surface_dirty(struct vmw_private *dev_priv,
+ 	ret = vmw_kms_helper_dirty(dev_priv, framebuffer, clips, vclips,
+ 				   dest_x, dest_y, num_clips, inc,
+ 				   &sdirty.base);
+-	vmw_kms_helper_resource_finish(srf, out_fence);
++	vmw_kms_helper_resource_finish(&ctx, out_fence);
+ 
+ 	return ret;
+ }
+diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
+index f823fc3efed7..3184a9ae22c1 100644
+--- a/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
++++ b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
+@@ -1003,12 +1003,13 @@ int vmw_kms_stdu_surface_dirty(struct vmw_private *dev_priv,
+ 	struct vmw_framebuffer_surface *vfbs =
+ 		container_of(framebuffer, typeof(*vfbs), base);
+ 	struct vmw_stdu_dirty sdirty;
++	struct vmw_validation_ctx ctx;
+ 	int ret;
+ 
+ 	if (!srf)
+ 		srf = &vfbs->surface->res;
+ 
+-	ret = vmw_kms_helper_resource_prepare(srf, true);
++	ret = vmw_kms_helper_resource_prepare(srf, true, &ctx);
+ 	if (ret)
+ 		return ret;
+ 
+@@ -1031,7 +1032,7 @@ int vmw_kms_stdu_surface_dirty(struct vmw_private *dev_priv,
+ 				   dest_x, dest_y, num_clips, inc,
+ 				   &sdirty.base);
+ out_finish:
+-	vmw_kms_helper_resource_finish(srf, out_fence);
++	vmw_kms_helper_resource_finish(&ctx, out_fence);
+ 
+ 	return ret;
+ }
+diff --git a/drivers/iio/accel/st_accel_core.c b/drivers/iio/accel/st_accel_core.c
+index 84ab20c6b389..b4136d3bf6b7 100644
+--- a/drivers/iio/accel/st_accel_core.c
++++ b/drivers/iio/accel/st_accel_core.c
+@@ -657,7 +657,7 @@ int st_accel_common_probe(struct iio_dev *indio_dev)
+ 	if (!pdata)
+ 		pdata = (struct st_sensors_platform_data *)&default_accel_pdata;
+ 
+-	err = st_sensors_init_sensor(indio_dev, adata->dev->platform_data);
++	err = st_sensors_init_sensor(indio_dev, pdata);
+ 	if (err < 0)
+ 		return err;
+ 
+diff --git a/drivers/iio/pressure/st_pressure_core.c b/drivers/iio/pressure/st_pressure_core.c
+index 270eeac928bc..ba282ff3892d 100644
+--- a/drivers/iio/pressure/st_pressure_core.c
++++ b/drivers/iio/pressure/st_pressure_core.c
+@@ -469,7 +469,7 @@ int st_press_common_probe(struct iio_dev *indio_dev)
+ 	if (!pdata && press_data->sensor_settings->drdy_irq.addr)
+ 		pdata =	(struct st_sensors_platform_data *)&default_press_pdata;
+ 
+-	err = st_sensors_init_sensor(indio_dev, press_data->dev->platform_data);
++	err = st_sensors_init_sensor(indio_dev, pdata);
+ 	if (err < 0)
+ 		return err;
+ 
+diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
+index fb204ee6ff89..581f5d0271f4 100644
+--- a/drivers/mmc/host/dw_mmc.c
++++ b/drivers/mmc/host/dw_mmc.c
+@@ -619,6 +619,7 @@ static int dw_mci_idmac_init(struct dw_mci *host)
+ 					(sizeof(struct idmac_desc_64addr) *
+ 							(i + 1))) >> 32;
+ 			/* Initialize reserved and buffer size fields to "0" */
++			p->des0 = 0;
+ 			p->des1 = 0;
+ 			p->des2 = 0;
+ 			p->des3 = 0;
+@@ -640,6 +641,7 @@ static int dw_mci_idmac_init(struct dw_mci *host)
+ 		     i++, p++) {
+ 			p->des3 = cpu_to_le32(host->sg_dma +
+ 					(sizeof(struct idmac_desc) * (i + 1)));
++			p->des0 = 0;
+ 			p->des1 = 0;
+ 		}
+ 
+@@ -2807,8 +2809,8 @@ static bool dw_mci_reset(struct dw_mci *host)
+ 	}
+ 
+ 	if (host->use_dma == TRANS_MODE_IDMAC)
+-		/* It is also recommended that we reset and reprogram idmac */
+-		dw_mci_idmac_reset(host);
++		/* It is also required that we reinit idmac */
++		dw_mci_idmac_init(host);
+ 
+ 	ret = true;
+ 
+diff --git a/drivers/mtd/nand/fsl_ifc_nand.c b/drivers/mtd/nand/fsl_ifc_nand.c
+index 7f4ac8c19001..5e3fa5861039 100644
+--- a/drivers/mtd/nand/fsl_ifc_nand.c
++++ b/drivers/mtd/nand/fsl_ifc_nand.c
+@@ -726,6 +726,7 @@ static int fsl_ifc_wait(struct mtd_info *mtd, struct nand_chip *chip)
+ 	struct fsl_ifc_ctrl *ctrl = priv->ctrl;
+ 	struct fsl_ifc_regs __iomem *ifc = ctrl->regs;
+ 	u32 nand_fsr;
++	int status;
+ 
+ 	/* Use READ_STATUS command, but wait for the device to be ready */
+ 	ifc_out32((IFC_FIR_OP_CW0 << IFC_NAND_FIR0_OP0_SHIFT) |
+@@ -740,12 +741,12 @@ static int fsl_ifc_wait(struct mtd_info *mtd, struct nand_chip *chip)
+ 	fsl_ifc_run_command(mtd);
+ 
+ 	nand_fsr = ifc_in32(&ifc->ifc_nand.nand_fsr);
+-
++	status = nand_fsr >> 24;
+ 	/*
+ 	 * The chip always seems to report that it is
+ 	 * write-protected, even when it is not.
+ 	 */
+-	return nand_fsr | NAND_STATUS_WP;
++	return status | NAND_STATUS_WP;
+ }
+ 
+ static int fsl_ifc_read_page(struct mtd_info *mtd, struct nand_chip *chip,
+diff --git a/drivers/net/can/cc770/cc770.c b/drivers/net/can/cc770/cc770.c
+index 1e37313054f3..6da69af103e6 100644
+--- a/drivers/net/can/cc770/cc770.c
++++ b/drivers/net/can/cc770/cc770.c
+@@ -390,37 +390,23 @@ static int cc770_get_berr_counter(const struct net_device *dev,
+ 	return 0;
+ }
+ 
+-static netdev_tx_t cc770_start_xmit(struct sk_buff *skb, struct net_device *dev)
++static void cc770_tx(struct net_device *dev, int mo)
+ {
+ 	struct cc770_priv *priv = netdev_priv(dev);
+-	struct net_device_stats *stats = &dev->stats;
+-	struct can_frame *cf = (struct can_frame *)skb->data;
+-	unsigned int mo = obj2msgobj(CC770_OBJ_TX);
++	struct can_frame *cf = (struct can_frame *)priv->tx_skb->data;
+ 	u8 dlc, rtr;
+ 	u32 id;
+ 	int i;
+ 
+-	if (can_dropped_invalid_skb(dev, skb))
+-		return NETDEV_TX_OK;
+-
+-	if ((cc770_read_reg(priv,
+-			    msgobj[mo].ctrl1) & TXRQST_UNC) == TXRQST_SET) {
+-		netdev_err(dev, "TX register is still occupied!\n");
+-		return NETDEV_TX_BUSY;
+-	}
+-
+-	netif_stop_queue(dev);
+-
+ 	dlc = cf->can_dlc;
+ 	id = cf->can_id;
+-	if (cf->can_id & CAN_RTR_FLAG)
+-		rtr = 0;
+-	else
+-		rtr = MSGCFG_DIR;
++	rtr = cf->can_id & CAN_RTR_FLAG ? 0 : MSGCFG_DIR;
++
++	cc770_write_reg(priv, msgobj[mo].ctrl0,
++			MSGVAL_RES | TXIE_RES | RXIE_RES | INTPND_RES);
+ 	cc770_write_reg(priv, msgobj[mo].ctrl1,
+ 			RMTPND_RES | TXRQST_RES | CPUUPD_SET | NEWDAT_RES);
+-	cc770_write_reg(priv, msgobj[mo].ctrl0,
+-			MSGVAL_SET | TXIE_SET | RXIE_RES | INTPND_RES);
++
+ 	if (id & CAN_EFF_FLAG) {
+ 		id &= CAN_EFF_MASK;
+ 		cc770_write_reg(priv, msgobj[mo].config,
+@@ -439,22 +425,30 @@ static netdev_tx_t cc770_start_xmit(struct sk_buff *skb, struct net_device *dev)
+ 	for (i = 0; i < dlc; i++)
+ 		cc770_write_reg(priv, msgobj[mo].data[i], cf->data[i]);
+ 
+-	/* Store echo skb before starting the transfer */
+-	can_put_echo_skb(skb, dev, 0);
+-
+ 	cc770_write_reg(priv, msgobj[mo].ctrl1,
+-			RMTPND_RES | TXRQST_SET | CPUUPD_RES | NEWDAT_UNC);
++			RMTPND_UNC | TXRQST_SET | CPUUPD_RES | NEWDAT_UNC);
++	cc770_write_reg(priv, msgobj[mo].ctrl0,
++			MSGVAL_SET | TXIE_SET | RXIE_SET | INTPND_UNC);
++}
+ 
+-	stats->tx_bytes += dlc;
++static netdev_tx_t cc770_start_xmit(struct sk_buff *skb, struct net_device *dev)
++{
++	struct cc770_priv *priv = netdev_priv(dev);
++	unsigned int mo = obj2msgobj(CC770_OBJ_TX);
+ 
++	if (can_dropped_invalid_skb(dev, skb))
++		return NETDEV_TX_OK;
+ 
+-	/*
+-	 * HM: We had some cases of repeated IRQs so make sure the
+-	 * INT is acknowledged I know it's already further up, but
+-	 * doing again fixed the issue
+-	 */
+-	cc770_write_reg(priv, msgobj[mo].ctrl0,
+-			MSGVAL_UNC | TXIE_UNC | RXIE_UNC | INTPND_RES);
++	netif_stop_queue(dev);
++
++	if ((cc770_read_reg(priv,
++			    msgobj[mo].ctrl1) & TXRQST_UNC) == TXRQST_SET) {
++		netdev_err(dev, "TX register is still occupied!\n");
++		return NETDEV_TX_BUSY;
++	}
++
++	priv->tx_skb = skb;
++	cc770_tx(dev, mo);
+ 
+ 	return NETDEV_TX_OK;
+ }
+@@ -680,19 +674,46 @@ static void cc770_tx_interrupt(struct net_device *dev, unsigned int o)
+ 	struct cc770_priv *priv = netdev_priv(dev);
+ 	struct net_device_stats *stats = &dev->stats;
+ 	unsigned int mo = obj2msgobj(o);
++	struct can_frame *cf;
++	u8 ctrl1;
++
++	ctrl1 = cc770_read_reg(priv, msgobj[mo].ctrl1);
+ 
+-	/* Nothing more to send, switch off interrupts */
+ 	cc770_write_reg(priv, msgobj[mo].ctrl0,
+ 			MSGVAL_RES | TXIE_RES | RXIE_RES | INTPND_RES);
+-	/*
+-	 * We had some cases of repeated IRQ so make sure the
+-	 * INT is acknowledged
++	cc770_write_reg(priv, msgobj[mo].ctrl1,
++			RMTPND_RES | TXRQST_RES | MSGLST_RES | NEWDAT_RES);
++
++	if (unlikely(!priv->tx_skb)) {
++		netdev_err(dev, "missing tx skb in tx interrupt\n");
++		return;
++	}
++
++	if (unlikely(ctrl1 & MSGLST_SET)) {
++		stats->rx_over_errors++;
++		stats->rx_errors++;
++	}
++
++	/* When the CC770 is sending an RTR message and it receives a regular
++	 * message that matches the id of the RTR message, it will overwrite the
++	 * outgoing message in the TX register. When this happens we must
++	 * process the received message and try to transmit the outgoing skb
++	 * again.
+ 	 */
+-	cc770_write_reg(priv, msgobj[mo].ctrl0,
+-			MSGVAL_UNC | TXIE_UNC | RXIE_UNC | INTPND_RES);
++	if (unlikely(ctrl1 & NEWDAT_SET)) {
++		cc770_rx(dev, mo, ctrl1);
++		cc770_tx(dev, mo);
++		return;
++	}
+ 
++	cf = (struct can_frame *)priv->tx_skb->data;
++	stats->tx_bytes += cf->can_dlc;
+ 	stats->tx_packets++;
++
++	can_put_echo_skb(priv->tx_skb, dev, 0);
+ 	can_get_echo_skb(dev, 0);
++	priv->tx_skb = NULL;
++
+ 	netif_wake_queue(dev);
+ }
+ 
+@@ -804,6 +825,7 @@ struct net_device *alloc_cc770dev(int sizeof_priv)
+ 	priv->can.do_set_bittiming = cc770_set_bittiming;
+ 	priv->can.do_set_mode = cc770_set_mode;
+ 	priv->can.ctrlmode_supported = CAN_CTRLMODE_3_SAMPLES;
++	priv->tx_skb = NULL;
+ 
+ 	memcpy(priv->obj_flags, cc770_obj_flags, sizeof(cc770_obj_flags));
+ 
+diff --git a/drivers/net/can/cc770/cc770.h b/drivers/net/can/cc770/cc770.h
+index a1739db98d91..95752e1d1283 100644
+--- a/drivers/net/can/cc770/cc770.h
++++ b/drivers/net/can/cc770/cc770.h
+@@ -193,6 +193,8 @@ struct cc770_priv {
+ 	u8 cpu_interface;	/* CPU interface register */
+ 	u8 clkout;		/* Clock out register */
+ 	u8 bus_config;		/* Bus conffiguration register */
++
++	struct sk_buff *tx_skb;
+ };
+ 
+ struct net_device *alloc_cc770dev(int sizeof_priv);
+diff --git a/drivers/net/wireless/brcm80211/brcmfmac/p2p.c b/drivers/net/wireless/brcm80211/brcmfmac/p2p.c
+index d224b3dd72ed..3196245ab820 100644
+--- a/drivers/net/wireless/brcm80211/brcmfmac/p2p.c
++++ b/drivers/net/wireless/brcm80211/brcmfmac/p2p.c
+@@ -461,25 +461,23 @@ static int brcmf_p2p_set_firmware(struct brcmf_if *ifp, u8 *p2p_mac)
+  * @dev_addr: optional device address.
+  *
+  * P2P needs mac addresses for P2P device and interface. If no device
+- * address it specified, these are derived from the primary net device, ie.
+- * the permanent ethernet address of the device.
++ * address it specified, these are derived from a random ethernet
++ * address.
+  */
+ static void brcmf_p2p_generate_bss_mac(struct brcmf_p2p_info *p2p, u8 *dev_addr)
+ {
+-	struct brcmf_if *pri_ifp = p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->ifp;
+-	bool local_admin = false;
++	bool random_addr = false;
+ 
+-	if (!dev_addr || is_zero_ether_addr(dev_addr)) {
+-		dev_addr = pri_ifp->mac_addr;
+-		local_admin = true;
+-	}
++	if (!dev_addr || is_zero_ether_addr(dev_addr))
++		random_addr = true;
+ 
+-	/* Generate the P2P Device Address.  This consists of the device's
+-	 * primary MAC address with the locally administered bit set.
++	/* Generate the P2P Device Address obtaining a random ethernet
++	 * address with the locally administered bit set.
+ 	 */
+-	memcpy(p2p->dev_addr, dev_addr, ETH_ALEN);
+-	if (local_admin)
+-		p2p->dev_addr[0] |= 0x02;
++	if (random_addr)
++		eth_random_addr(p2p->dev_addr);
++	else
++		memcpy(p2p->dev_addr, dev_addr, ETH_ALEN);
+ 
+ 	/* Generate the P2P Interface Address.  If the discovery and connection
+ 	 * BSSCFGs need to simultaneously co-exist, then this address must be
+diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8723be/hw.c b/drivers/net/wireless/realtek/rtlwifi/rtl8723be/hw.c
+index 5a3df9198ddf..89515f02c353 100644
+--- a/drivers/net/wireless/realtek/rtlwifi/rtl8723be/hw.c
++++ b/drivers/net/wireless/realtek/rtlwifi/rtl8723be/hw.c
+@@ -1123,7 +1123,8 @@ static void _rtl8723be_enable_aspm_back_door(struct ieee80211_hw *hw)
+ 
+ 	/* Configuration Space offset 0x70f BIT7 is used to control L0S */
+ 	tmp8 = _rtl8723be_dbi_read(rtlpriv, 0x70f);
+-	_rtl8723be_dbi_write(rtlpriv, 0x70f, tmp8 | BIT(7));
++	_rtl8723be_dbi_write(rtlpriv, 0x70f, tmp8 | BIT(7) |
++			     ASPM_L1_LATENCY << 3);
+ 
+ 	/* Configuration Space offset 0x719 Bit3 is for L1
+ 	 * BIT4 is for clock request
+diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
+index 254192b5dad1..4eb1cf0ed00c 100644
+--- a/drivers/pci/quirks.c
++++ b/drivers/pci/quirks.c
+@@ -3631,6 +3631,8 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL_EXT, 0x9230,
+ 			 quirk_dma_func1_alias);
+ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TTI, 0x0642,
+ 			 quirk_dma_func1_alias);
++DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TTI, 0x0645,
++			 quirk_dma_func1_alias);
+ /* https://bugs.gentoo.org/show_bug.cgi?id=497630 */
+ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_JMICRON,
+ 			 PCI_DEVICE_ID_JMICRON_JMB388_ESD,
+diff --git a/drivers/staging/lustre/lustre/ptlrpc/sec.c b/drivers/staging/lustre/lustre/ptlrpc/sec.c
+index 39f5261c9854..5cf5b7334089 100644
+--- a/drivers/staging/lustre/lustre/ptlrpc/sec.c
++++ b/drivers/staging/lustre/lustre/ptlrpc/sec.c
+@@ -824,7 +824,7 @@ void sptlrpc_request_out_callback(struct ptlrpc_request *req)
+ 	if (req->rq_pool || !req->rq_reqbuf)
+ 		return;
+ 
+-	kfree(req->rq_reqbuf);
++	kvfree(req->rq_reqbuf);
+ 	req->rq_reqbuf = NULL;
+ 	req->rq_reqbuf_len = 0;
+ }
+diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
+index e4f69bddcfb1..251315c35747 100644
+--- a/drivers/tty/vt/vt.c
++++ b/drivers/tty/vt/vt.c
+@@ -1725,7 +1725,7 @@ static void reset_terminal(struct vc_data *vc, int do_clear)
+ 	default_attr(vc);
+ 	update_attr(vc);
+ 
+-	vc->vc_tab_stop[0]	= 0x01010100;
++	vc->vc_tab_stop[0]	=
+ 	vc->vc_tab_stop[1]	=
+ 	vc->vc_tab_stop[2]	=
+ 	vc->vc_tab_stop[3]	=
+@@ -1769,7 +1769,7 @@ static void do_con_trol(struct tty_struct *tty, struct vc_data *vc, int c)
+ 		vc->vc_pos -= (vc->vc_x << 1);
+ 		while (vc->vc_x < vc->vc_cols - 1) {
+ 			vc->vc_x++;
+-			if (vc->vc_tab_stop[vc->vc_x >> 5] & (1 << (vc->vc_x & 31)))
++			if (vc->vc_tab_stop[7 & (vc->vc_x >> 5)] & (1 << (vc->vc_x & 31)))
+ 				break;
+ 		}
+ 		vc->vc_pos += (vc->vc_x << 1);
+@@ -1829,7 +1829,7 @@ static void do_con_trol(struct tty_struct *tty, struct vc_data *vc, int c)
+ 			lf(vc);
+ 			return;
+ 		case 'H':
+-			vc->vc_tab_stop[vc->vc_x >> 5] |= (1 << (vc->vc_x & 31));
++			vc->vc_tab_stop[7 & (vc->vc_x >> 5)] |= (1 << (vc->vc_x & 31));
+ 			return;
+ 		case 'Z':
+ 			respond_ID(tty);
+@@ -2022,7 +2022,7 @@ static void do_con_trol(struct tty_struct *tty, struct vc_data *vc, int c)
+ 			return;
+ 		case 'g':
+ 			if (!vc->vc_par[0])
+-				vc->vc_tab_stop[vc->vc_x >> 5] &= ~(1 << (vc->vc_x & 31));
++				vc->vc_tab_stop[7 & (vc->vc_x >> 5)] &= ~(1 << (vc->vc_x & 31));
+ 			else if (vc->vc_par[0] == 3) {
+ 				vc->vc_tab_stop[0] =
+ 					vc->vc_tab_stop[1] =
+diff --git a/fs/ncpfs/ncplib_kernel.c b/fs/ncpfs/ncplib_kernel.c
+index 88dbbc9fcf4d..f571570a2e72 100644
+--- a/fs/ncpfs/ncplib_kernel.c
++++ b/fs/ncpfs/ncplib_kernel.c
+@@ -980,6 +980,10 @@ ncp_read_kernel(struct ncp_server *server, const char *file_id,
+ 		goto out;
+ 	}
+ 	*bytes_read = ncp_reply_be16(server, 0);
++	if (*bytes_read > to_read) {
++		result = -EINVAL;
++		goto out;
++	}
+ 	source = ncp_reply_data(server, 2 + (offset & 1));
+ 
+ 	memcpy(target, source, *bytes_read);
+diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h
+index 14b0ff32fb9f..4814cf971048 100644
+--- a/include/asm-generic/pgtable.h
++++ b/include/asm-generic/pgtable.h
+@@ -755,6 +755,8 @@ int pud_set_huge(pud_t *pud, phys_addr_t addr, pgprot_t prot);
+ int pmd_set_huge(pmd_t *pmd, phys_addr_t addr, pgprot_t prot);
+ int pud_clear_huge(pud_t *pud);
+ int pmd_clear_huge(pmd_t *pmd);
++int pud_free_pmd_page(pud_t *pud);
++int pmd_free_pte_page(pmd_t *pmd);
+ #else	/* !CONFIG_HAVE_ARCH_HUGE_VMAP */
+ static inline int pud_set_huge(pud_t *pud, phys_addr_t addr, pgprot_t prot)
+ {
+@@ -772,6 +774,14 @@ static inline int pmd_clear_huge(pmd_t *pmd)
+ {
+ 	return 0;
+ }
++static inline int pud_free_pmd_page(pud_t *pud)
++{
++	return 0;
++}
++static inline int pmd_free_pte_page(pmd_t *pmd)
++{
++	return 0;
++}
+ #endif	/* CONFIG_HAVE_ARCH_HUGE_VMAP */
+ 
+ #endif /* !__ASSEMBLY__ */
+diff --git a/include/uapi/linux/usb/audio.h b/include/uapi/linux/usb/audio.h
+index d2314be4f0c0..19f9dc2c06f6 100644
+--- a/include/uapi/linux/usb/audio.h
++++ b/include/uapi/linux/usb/audio.h
+@@ -369,7 +369,7 @@ static inline __u8 uac_processing_unit_bControlSize(struct uac_processing_unit_d
+ {
+ 	return (protocol == UAC_VERSION_1) ?
+ 		desc->baSourceID[desc->bNrInPins + 4] :
+-		desc->baSourceID[desc->bNrInPins + 6];
++		2; /* in UAC2, this value is constant */
+ }
+ 
+ static inline __u8 *uac_processing_unit_bmControls(struct uac_processing_unit_descriptor *desc,
+@@ -377,7 +377,7 @@ static inline __u8 *uac_processing_unit_bmControls(struct uac_processing_unit_de
+ {
+ 	return (protocol == UAC_VERSION_1) ?
+ 		&desc->baSourceID[desc->bNrInPins + 5] :
+-		&desc->baSourceID[desc->bNrInPins + 7];
++		&desc->baSourceID[desc->bNrInPins + 6];
+ }
+ 
+ static inline __u8 uac_processing_unit_iProcessing(struct uac_processing_unit_descriptor *desc,
+diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
+index 424accd20c2d..dc19b6e210e6 100644
+--- a/kernel/bpf/syscall.c
++++ b/kernel/bpf/syscall.c
+@@ -673,7 +673,7 @@ SYSCALL_DEFINE3(bpf, int, cmd, union bpf_attr __user *, uattr, unsigned int, siz
+ 	union bpf_attr attr = {};
+ 	int err;
+ 
+-	if (!capable(CAP_SYS_ADMIN) && sysctl_unprivileged_bpf_disabled)
++	if (sysctl_unprivileged_bpf_disabled && !capable(CAP_SYS_ADMIN))
+ 		return -EPERM;
+ 
+ 	if (!access_ok(VERIFY_READ, uattr, 1))
+diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c
+index e9092a0247bf..f2682799c215 100644
+--- a/kernel/trace/trace_kprobe.c
++++ b/kernel/trace/trace_kprobe.c
+@@ -599,7 +599,7 @@ static int create_trace_kprobe(int argc, char **argv)
+ 	bool is_return = false, is_delete = false;
+ 	char *symbol = NULL, *event = NULL, *group = NULL;
+ 	char *arg;
+-	unsigned long offset = 0;
++	long offset = 0;
+ 	void *addr = NULL;
+ 	char buf[MAX_EVENT_NAME_LEN];
+ 
+@@ -667,7 +667,7 @@ static int create_trace_kprobe(int argc, char **argv)
+ 		symbol = argv[1];
+ 		/* TODO: support .init module functions */
+ 		ret = traceprobe_split_symbol_offset(symbol, &offset);
+-		if (ret) {
++		if (ret || offset < 0 || offset > UINT_MAX) {
+ 			pr_info("Failed to parse either an address or a symbol.\n");
+ 			return ret;
+ 		}
+diff --git a/kernel/trace/trace_probe.c b/kernel/trace/trace_probe.c
+index 1769a81da8a7..741c00b90fdc 100644
+--- a/kernel/trace/trace_probe.c
++++ b/kernel/trace/trace_probe.c
+@@ -293,7 +293,7 @@ static fetch_func_t get_fetch_size_function(const struct fetch_type *type,
+ }
+ 
+ /* Split symbol and offset. */
+-int traceprobe_split_symbol_offset(char *symbol, unsigned long *offset)
++int traceprobe_split_symbol_offset(char *symbol, long *offset)
+ {
+ 	char *tmp;
+ 	int ret;
+@@ -301,13 +301,11 @@ int traceprobe_split_symbol_offset(char *symbol, unsigned long *offset)
+ 	if (!offset)
+ 		return -EINVAL;
+ 
+-	tmp = strchr(symbol, '+');
++	tmp = strpbrk(symbol, "+-");
+ 	if (tmp) {
+-		/* skip sign because kstrtoul doesn't accept '+' */
+-		ret = kstrtoul(tmp + 1, 0, offset);
++		ret = kstrtol(tmp, 0, offset);
+ 		if (ret)
+ 			return ret;
+-
+ 		*tmp = '\0';
+ 	} else
+ 		*offset = 0;
+diff --git a/kernel/trace/trace_probe.h b/kernel/trace/trace_probe.h
+index f6398db09114..0afe921df8c8 100644
+--- a/kernel/trace/trace_probe.h
++++ b/kernel/trace/trace_probe.h
+@@ -335,7 +335,7 @@ extern int traceprobe_conflict_field_name(const char *name,
+ extern void traceprobe_update_arg(struct probe_arg *arg);
+ extern void traceprobe_free_probe_arg(struct probe_arg *arg);
+ 
+-extern int traceprobe_split_symbol_offset(char *symbol, unsigned long *offset);
++extern int traceprobe_split_symbol_offset(char *symbol, long *offset);
+ 
+ extern ssize_t traceprobe_probes_write(struct file *file,
+ 		const char __user *buffer, size_t count, loff_t *ppos,
+diff --git a/lib/ioremap.c b/lib/ioremap.c
+index 86c8911b0e3a..5323b59ca393 100644
+--- a/lib/ioremap.c
++++ b/lib/ioremap.c
+@@ -83,7 +83,8 @@ static inline int ioremap_pmd_range(pud_t *pud, unsigned long addr,
+ 
+ 		if (ioremap_pmd_enabled() &&
+ 		    ((next - addr) == PMD_SIZE) &&
+-		    IS_ALIGNED(phys_addr + addr, PMD_SIZE)) {
++		    IS_ALIGNED(phys_addr + addr, PMD_SIZE) &&
++		    pmd_free_pte_page(pmd)) {
+ 			if (pmd_set_huge(pmd, phys_addr + addr, prot))
+ 				continue;
+ 		}
+@@ -109,7 +110,8 @@ static inline int ioremap_pud_range(pgd_t *pgd, unsigned long addr,
+ 
+ 		if (ioremap_pud_enabled() &&
+ 		    ((next - addr) == PUD_SIZE) &&
+-		    IS_ALIGNED(phys_addr + addr, PUD_SIZE)) {
++		    IS_ALIGNED(phys_addr + addr, PUD_SIZE) &&
++		    pud_free_pmd_page(pud)) {
+ 			if (pud_set_huge(pud, phys_addr + addr, prot))
+ 				continue;
+ 		}
+diff --git a/sound/drivers/aloop.c b/sound/drivers/aloop.c
+index cbd20cb8ca11..dc91002d1e0d 100644
+--- a/sound/drivers/aloop.c
++++ b/sound/drivers/aloop.c
+@@ -192,6 +192,11 @@ static inline void loopback_timer_stop(struct loopback_pcm *dpcm)
+ 	dpcm->timer.expires = 0;
+ }
+ 
++static inline void loopback_timer_stop_sync(struct loopback_pcm *dpcm)
++{
++	del_timer_sync(&dpcm->timer);
++}
++
+ #define CABLE_VALID_PLAYBACK	(1 << SNDRV_PCM_STREAM_PLAYBACK)
+ #define CABLE_VALID_CAPTURE	(1 << SNDRV_PCM_STREAM_CAPTURE)
+ #define CABLE_VALID_BOTH	(CABLE_VALID_PLAYBACK|CABLE_VALID_CAPTURE)
+@@ -326,6 +331,8 @@ static int loopback_prepare(struct snd_pcm_substream *substream)
+ 	struct loopback_cable *cable = dpcm->cable;
+ 	int bps, salign;
+ 
++	loopback_timer_stop_sync(dpcm);
++
+ 	salign = (snd_pcm_format_width(runtime->format) *
+ 						runtime->channels) / 8;
+ 	bps = salign * runtime->rate;
+@@ -659,7 +666,9 @@ static void free_cable(struct snd_pcm_substream *substream)
+ 		return;
+ 	if (cable->streams[!substream->stream]) {
+ 		/* other stream is still alive */
++		spin_lock_irq(&cable->lock);
+ 		cable->streams[substream->stream] = NULL;
++		spin_unlock_irq(&cable->lock);
+ 	} else {
+ 		/* free the cable */
+ 		loopback->cables[substream->number][dev] = NULL;
+@@ -699,7 +708,6 @@ static int loopback_open(struct snd_pcm_substream *substream)
+ 		loopback->cables[substream->number][dev] = cable;
+ 	}
+ 	dpcm->cable = cable;
+-	cable->streams[substream->stream] = dpcm;
+ 
+ 	snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
+ 
+@@ -731,6 +739,11 @@ static int loopback_open(struct snd_pcm_substream *substream)
+ 		runtime->hw = loopback_pcm_hardware;
+ 	else
+ 		runtime->hw = cable->hw;
++
++	spin_lock_irq(&cable->lock);
++	cable->streams[substream->stream] = dpcm;
++	spin_unlock_irq(&cable->lock);
++
+  unlock:
+ 	if (err < 0) {
+ 		free_cable(substream);
+@@ -745,7 +758,7 @@ static int loopback_close(struct snd_pcm_substream *substream)
+ 	struct loopback *loopback = substream->private_data;
+ 	struct loopback_pcm *dpcm = substream->runtime->private_data;
+ 
+-	loopback_timer_stop(dpcm);
++	loopback_timer_stop_sync(dpcm);
+ 	mutex_lock(&loopback->cable_lock);
+ 	free_cable(substream);
+ 	mutex_unlock(&loopback->cable_lock);
+diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
+index 8e33360ae2e5..8cb14e27988b 100644
+--- a/sound/pci/hda/patch_realtek.c
++++ b/sound/pci/hda/patch_realtek.c
+@@ -3261,8 +3261,12 @@ static void alc269_fixup_mic_mute_hook(void *private_data, int enabled)
+ 	pinval = snd_hda_codec_get_pin_target(codec, spec->mute_led_nid);
+ 	pinval &= ~AC_PINCTL_VREFEN;
+ 	pinval |= enabled ? AC_PINCTL_VREF_HIZ : AC_PINCTL_VREF_80;
+-	if (spec->mute_led_nid)
++	if (spec->mute_led_nid) {
++		/* temporarily power up/down for setting VREF */
++		snd_hda_power_up_pm(codec);
+ 		snd_hda_set_pin_ctl_cache(codec, spec->mute_led_nid, pinval);
++		snd_hda_power_down_pm(codec);
++	}
+ }
+ 
+ /* Make sure the led works even in runtime suspend */