Merge branch 'perf/urgent' into perf/core to fix conflicts

Conflicts:
tools/perf/bench/numa.c

Signed-off-by: Ingo Molnar <[e-mail]>

MAINTAINERS

···
 S:	Maintained
 F:	drivers/net/usb/rtl8150.c
 
-USB SERIAL BELKIN F5U103 DRIVER
-M:	William Greathouse <[e-mail]>
+USB SERIAL SUBSYSTEM
+M:	Johan Hovold <[e-mail]>
 L:	[e-mail]
 S:	Maintained
-F:	drivers/usb/serial/belkin_sa.*
-
-USB SERIAL CYPRESS M8 DRIVER
-M:	Lonnie Mendez <[e-mail]>
-L:	[e-mail]
-S:	Maintained
-W:	http://geocities.com/i0xox0i
-W:	http://firstlight.net/cvs
-F:	drivers/usb/serial/cypress_m8.*
-
-USB SERIAL CYBERJACK DRIVER
-M:	Matthias Bruestle and Harald Welte <[e-mail]>
-W:	http://www.reiner-sct.de/support/treiber_cyberjack.php
-S:	Maintained
-F:	drivers/usb/serial/cyberjack.c
-
-USB SERIAL DIGI ACCELEPORT DRIVER
-M:	Peter Berger <[e-mail]>
-M:	Al Borchers <[e-mail]>
-L:	[e-mail]
-S:	Maintained
-F:	drivers/usb/serial/digi_acceleport.c
-
-USB SERIAL DRIVER
-M:	Greg Kroah-Hartman <[e-mail]>
-L:	[e-mail]
-S:	Supported
 F:	Documentation/usb/usb-serial.txt
-F:	drivers/usb/serial/generic.c
-F:	drivers/usb/serial/usb-serial.c
+F:	drivers/usb/serial/
 F:	include/linux/usb/serial.h
-
-USB SERIAL EMPEG EMPEG-CAR MARK I/II DRIVER
-M:	Gary Brubaker <[e-mail]>
-L:	[e-mail]
-S:	Maintained
-F:	drivers/usb/serial/empeg.c
-
-USB SERIAL KEYSPAN DRIVER
-M:	Greg Kroah-Hartman <[e-mail]>
-L:	[e-mail]
-S:	Maintained
-F:	drivers/usb/serial/*keyspan*
-
-USB SERIAL WHITEHEAT DRIVER
-M:	Support Department <[e-mail]>
-L:	[e-mail]
-W:	http://www.connecttech.com
-S:	Supported
-F:	drivers/usb/serial/whiteheat*
 
 USB SMSC75XX ETHERNET DRIVER
 M:	Steve Glendinning <[e-mail]>

Makefile

···
 VERSION = 3
 PATCHLEVEL = 12
 SUBLEVEL = 0
-EXTRAVERSION = -rc7
+EXTRAVERSION =
 NAME = One Giant Leap for Frogkind
 
 # *DOCUMENTATION*

arch/arc/mm/fault.c

···
 #include <asm/pgalloc.h>
 #include <asm/mmu.h>
 
-static int handle_vmalloc_fault(struct mm_struct *mm, unsigned long address)
+static int handle_vmalloc_fault(unsigned long address)
 {
 	/*
 	 * Synchronize this task's top level page-table
···
 	pud_t *pud, *pud_k;
 	pmd_t *pmd, *pmd_k;
 
-	pgd = pgd_offset_fast(mm, address);
+	pgd = pgd_offset_fast(current->active_mm, address);
 	pgd_k = pgd_offset_k(address);
 
 	if (!pgd_present(*pgd_k))
···
 	 * nothing more.
 	 */
 	if (address >= VMALLOC_START && address <= VMALLOC_END) {
-		ret = handle_vmalloc_fault(mm, address);
+		ret = handle_vmalloc_fault(address);
 		if (unlikely(ret))
 			goto bad_area_nosemaphore;
 		else

arch/mips/kernel/perf_event_mipsxx.c

···
 [C(LL)] = {
 	[C(OP_READ)] = {
 		[C(RESULT_ACCESS)]	= { 0x1c, CNTR_ODD, P },
-		[C(RESULT_MISS)]	= { 0x1d, CNTR_EVEN | CNTR_ODD, P },
+		[C(RESULT_MISS)]	= { 0x1d, CNTR_EVEN, P },
 	},
 	[C(OP_WRITE)] = {
 		[C(RESULT_ACCESS)]	= { 0x1c, CNTR_ODD, P },
-		[C(RESULT_MISS)]	= { 0x1d, CNTR_EVEN | CNTR_ODD, P },
+		[C(RESULT_MISS)]	= { 0x1d, CNTR_EVEN, P },
 	},
 },
 [C(ITLB)] = {

arch/mips/mti-malta/malta-int.c

···
 {
 	int cpu;
 
-	for (cpu = 0; cpu < NR_CPUS; cpu++) {
+	for (cpu = 0; cpu < nr_cpu_ids; cpu++) {
 		fill_ipi_map1(gic_resched_int_base, cpu, GIC_CPU_INT1);
 		fill_ipi_map1(gic_call_int_base, cpu, GIC_CPU_INT2);
 	}
···
 		/* FIXME */
 		int i;
 #if defined(CONFIG_MIPS_MT_SMP)
-		gic_call_int_base = GIC_NUM_INTRS - NR_CPUS;
-		gic_resched_int_base = gic_call_int_base - NR_CPUS;
+		gic_call_int_base = GIC_NUM_INTRS -
+			(NR_CPUS - nr_cpu_ids) * 2 - nr_cpu_ids;
+		gic_resched_int_base = gic_call_int_base - nr_cpu_ids;
 		fill_ipi_map();
 #endif
 		gic_init(GIC_BASE_ADDR, GIC_ADDRSPACE_SZ, gic_intr_map,
···
 		printk("CPU%d: status register now %08x\n", smp_processor_id(), read_c0_status());
 		write_c0_status(0x1100dc00);
 		printk("CPU%d: status register frc %08x\n", smp_processor_id(), read_c0_status());
-		for (i = 0; i < NR_CPUS; i++) {
+		for (i = 0; i < nr_cpu_ids; i++) {
 			arch_init_ipiirq(MIPS_GIC_IRQ_BASE +
 					 GIC_RESCHED_INT(i), &irq_resched);
 			arch_init_ipiirq(MIPS_GIC_IRQ_BASE +

arch/mips/ralink/timer.c

···
 		return -ENOENT;
 	}
 
-	rt->membase = devm_request_and_ioremap(&pdev->dev, res);
+	rt->membase = devm_ioremap_resource(&pdev->dev, res);
 	if (IS_ERR(rt->membase))
 		return PTR_ERR(rt->membase);
 

arch/um/kernel/exitcode.c

···
 		const char __user *buffer, size_t count, loff_t *pos)
 {
 	char *end, buf[sizeof("nnnnn\0")];
+	size_t size;
 	int tmp;
 
-	if (copy_from_user(buf, buffer, count))
+	size = min(count, sizeof(buf));
+	if (copy_from_user(buf, buffer, size))
 		return -EFAULT;
 
 	tmp = simple_strtol(buf, &end, 0);

arch/x86/include/asm/percpu.h

···
 do {									\
 	typedef typeof(var) pao_T__;					\
 	const int pao_ID__ = (__builtin_constant_p(val) &&		\
-			      ((val) == 1 || (val) == -1)) ? (val) : 0;	\
+			      ((val) == 1 || (val) == -1)) ?		\
+				(int)(val) : 0;				\
 	if (0) {							\
 		pao_T__ pao_tmp__;					\
 		pao_tmp__ = (val);					\

arch/x86/kernel/cpu/perf_event.c

···
 static int __kprobes
 perf_event_nmi_handler(unsigned int cmd, struct pt_regs *regs)
 {
-	int ret;
 	u64 start_clock;
 	u64 finish_clock;
+	int ret;
 
 	if (!atomic_read(&active_events))
 		return NMI_DONE;
 
-	start_clock = local_clock();
+	start_clock = sched_clock();
 	ret = x86_pmu.handle_irq(regs);
-	finish_clock = local_clock();
+	finish_clock = sched_clock();
 
 	perf_sample_event_took(finish_clock - start_clock);
 

arch/x86/kernel/kvm.c

···
 
 struct dentry *kvm_init_debugfs(void)
 {
-	d_kvm_debug = debugfs_create_dir("kvm", NULL);
+	d_kvm_debug = debugfs_create_dir("kvm-guest", NULL);
 	if (!d_kvm_debug)
 		printk(KERN_WARNING "Could not create 'kvm' debugfs directory\n");
 

arch/x86/kernel/nmi.c

···
 		u64 before, delta, whole_msecs;
 		int remainder_ns, decimal_msecs, thishandled;
 
-		before = local_clock();
+		before = sched_clock();
 		thishandled = a->handler(type, regs);
 		handled += thishandled;
-		delta = local_clock() - before;
+		delta = sched_clock() - before;
 		trace_nmi_handler(a->handler, (int)delta, thishandled);
 
 		if (delta < nmi_longest_ns)

arch/xtensa/kernel/entry.S

···
  * a3: exctable, original value in excsave1
  */
 
-fast_syscall_spill_registers_fixup:
+ENTRY(fast_syscall_spill_registers_fixup)
 
 	rsr	a2, windowbase	# get current windowbase (a2 is saved)
 	xsr	a0, depc	# restore depc and a0
···
 	 */
 
 	xsr	a3, excsave1	# get spill-mask
-	slli	a2, a3, 1	# shift left by one
+	slli	a3, a3, 1	# shift left by one
 
-	slli	a3, a2, 32-WSBITS
-	src	a2, a2, a3	# a1 = xxwww1yyxxxwww1yy......
+	slli	a2, a3, 32-WSBITS
+	src	a2, a3, a2	# a2 = xxwww1yyxxxwww1yy......
 	wsr	a2, windowstart	# set corrected windowstart
 
-	rsr	a3, excsave1
-	l32i	a2, a3, EXC_TABLE_DOUBLE_SAVE	# restore a2
-	l32i	a3, a3, EXC_TABLE_PARAM	# original WB (in user task)
+	srli	a3, a3, 1
+	rsr	a2, excsave1
+	l32i	a2, a2, EXC_TABLE_DOUBLE_SAVE	# restore a2
+	xsr	a2, excsave1
+	s32i	a3, a2, EXC_TABLE_DOUBLE_SAVE	# save a3
+	l32i	a3, a2, EXC_TABLE_PARAM	# original WB (in user task)
+	xsr	a2, excsave1
 
 	/* Return to the original (user task) WINDOWBASE.
 	 * We leave the following frame behind:
 	 * a0, a1, a2	same
-	 * a3:		trashed (saved in excsave_1)
+	 * a3:		trashed (saved in EXC_TABLE_DOUBLE_SAVE)
 	 * depc:	depc (we have to return to that address)
-	 * excsave_1:	a3
+	 * excsave_1:	exctable
 	 */
 
 	wsr	a3, windowbase
···
 	 *  a0: return address
 	 *  a1: used, stack pointer
 	 *  a2: kernel stack pointer
-	 *  a3: available, saved in EXCSAVE_1
+	 *  a3: available
 	 *  depc: exception address
-	 *  excsave: a3
+	 *  excsave: exctable
 	 * Note: This frame might be the same as above.
 	 */
 
···
 	rsr	a0, exccause
 	addx4	a0, a0, a3              	# find entry in table
 	l32i	a0, a0, EXC_TABLE_FAST_USER     # load handler
+	l32i	a3, a3, EXC_TABLE_DOUBLE_SAVE
 	jx	a0
 
-fast_syscall_spill_registers_fixup_return:
+ENDPROC(fast_syscall_spill_registers_fixup)
+
+ENTRY(fast_syscall_spill_registers_fixup_return)
 
 	/* When we return here, all registers have been restored (a2: DEPC) */
 
···
 
 	/* Restore fixup handler. */
 
-	xsr	a3, excsave1
-	movi	a2, fast_syscall_spill_registers_fixup
-	s32i	a2, a3, EXC_TABLE_FIXUP
-	s32i	a0, a3, EXC_TABLE_DOUBLE_SAVE
-	rsr	a2, windowbase
-	s32i	a2, a3, EXC_TABLE_PARAM
-	l32i	a2, a3, EXC_TABLE_KSTK
+	rsr	a2, excsave1
+	s32i	a3, a2, EXC_TABLE_DOUBLE_SAVE
+	movi	a3, fast_syscall_spill_registers_fixup
+	s32i	a3, a2, EXC_TABLE_FIXUP
+	rsr	a3, windowbase
+	s32i	a3, a2, EXC_TABLE_PARAM
+	l32i	a2, a2, EXC_TABLE_KSTK
 
 	/* Load WB at the time the exception occurred. */
 
···
 	wsr	a3, windowbase
 	rsync
 
+	rsr	a3, excsave1
+	l32i	a3, a3, EXC_TABLE_DOUBLE_SAVE
+
 	rfde
 
+ENDPROC(fast_syscall_spill_registers_fixup_return)
 
 /*
  * spill all registers.

arch/xtensa/kernel/signal.c

···
 
 	sp = regs->areg[1];
 
-	if ((ka->sa.sa_flags & SA_ONSTACK) != 0 && ! on_sig_stack(sp)) {
+	if ((ka->sa.sa_flags & SA_ONSTACK) != 0 && sas_ss_flags(sp) == 0) {
 		sp = current->sas_ss_sp + current->sas_ss_size;
 	}
 

arch/xtensa/platforms/iss/network.c

···
 		return 1;
 	}
 
-	if ((new = alloc_bootmem(sizeof new)) == NULL) {
+	new = alloc_bootmem(sizeof(*new));
+	if (new == NULL) {
 		printk("Alloc_bootmem failed\n");
 		return 1;
 	}

drivers/clk/clk-nomadik.c

···
  */
 
 #define SRC_CR			0x00U
+#define SRC_CR_T0_ENSEL		BIT(15)
+#define SRC_CR_T1_ENSEL		BIT(17)
+#define SRC_CR_T2_ENSEL		BIT(19)
+#define SRC_CR_T3_ENSEL		BIT(21)
+#define SRC_CR_T4_ENSEL		BIT(23)
+#define SRC_CR_T5_ENSEL		BIT(25)
+#define SRC_CR_T6_ENSEL		BIT(27)
+#define SRC_CR_T7_ENSEL		BIT(29)
 #define SRC_XTALCR		0x0CU
 #define SRC_XTALCR_XTALTIMEN	BIT(20)
 #define SRC_XTALCR_SXTALDIS	BIT(19)
···
 		       __func__, np->name);
 		return;
 	}
+
+	/* Set all timers to use the 2.4 MHz TIMCLK */
+	val = readl(src_base + SRC_CR);
+	val |= SRC_CR_T0_ENSEL;
+	val |= SRC_CR_T1_ENSEL;
+	val |= SRC_CR_T2_ENSEL;
+	val |= SRC_CR_T3_ENSEL;
+	val |= SRC_CR_T4_ENSEL;
+	val |= SRC_CR_T5_ENSEL;
+	val |= SRC_CR_T6_ENSEL;
+	val |= SRC_CR_T7_ENSEL;
+	writel(val, src_base + SRC_CR);
+
 	val = readl(src_base + SRC_XTALCR);
 	pr_info("SXTALO is %s\n",
 		(val & SRC_XTALCR_SXTALDIS) ? "disabled" : "enabled");

drivers/clk/mvebu/armada-370.c

···
 };
 
 static const u32 a370_tclk_freqs[] __initconst = {
-	16600000,
-	20000000,
+	166000000,
+	200000000,
 };
 
 static u32 __init a370_get_tclk_freq(void __iomem *sar)

drivers/clk/socfpga/clk.c

···
 #define SOCFPGA_L4_SP_CLK		"l4_sp_clk"
 #define SOCFPGA_NAND_CLK		"nand_clk"
 #define SOCFPGA_NAND_X_CLK		"nand_x_clk"
-#define SOCFPGA_MMC_CLK			"mmc_clk"
+#define SOCFPGA_MMC_CLK			"sdmmc_clk"
 #define SOCFPGA_DB_CLK			"gpio_db_clk"
 
 #define div_mask(width)	((1 << (width)) - 1)

drivers/clk/versatile/clk-icst.c

···
 
 	vco = icst_hz_to_vco(icst->params, rate);
 	icst->rate = icst_hz(icst->params, vco);
-	vco_set(icst->vcoreg, icst->lockreg, vco);
+	vco_set(icst->lockreg, icst->vcoreg, vco);
 	return 0;
 }
 

drivers/gpu/drm/drm_drv.c

···
 
 /** Ioctl table */
 static const struct drm_ioctl_desc drm_ioctls[] = {
-	DRM_IOCTL_DEF(DRM_IOCTL_VERSION, drm_version, DRM_UNLOCKED),
+	DRM_IOCTL_DEF(DRM_IOCTL_VERSION, drm_version, DRM_UNLOCKED|DRM_RENDER_ALLOW),
 	DRM_IOCTL_DEF(DRM_IOCTL_GET_UNIQUE, drm_getunique, 0),
 	DRM_IOCTL_DEF(DRM_IOCTL_GET_MAGIC, drm_getmagic, 0),
 	DRM_IOCTL_DEF(DRM_IOCTL_IRQ_BUSID, drm_irq_by_busid, DRM_MASTER|DRM_ROOT_ONLY),

drivers/gpu/drm/i915/intel_crt.c

···
 	return true;
 }
 
-static void intel_crt_get_config(struct intel_encoder *encoder,
-				 struct intel_crtc_config *pipe_config)
+static unsigned int intel_crt_get_flags(struct intel_encoder *encoder)
 {
 	struct drm_i915_private *dev_priv = encoder->base.dev->dev_private;
 	struct intel_crt *crt = intel_encoder_to_crt(encoder);
···
 	else
 		flags |= DRM_MODE_FLAG_NVSYNC;
 
-	pipe_config->adjusted_mode.flags |= flags;
+	return flags;
+}
+
+static void intel_crt_get_config(struct intel_encoder *encoder,
+				 struct intel_crtc_config *pipe_config)
+{
+	pipe_config->adjusted_mode.flags |= intel_crt_get_flags(encoder);
+}
+
+static void hsw_crt_get_config(struct intel_encoder *encoder,
+			       struct intel_crtc_config *pipe_config)
+{
+	intel_ddi_get_config(encoder, pipe_config);
+
+	pipe_config->adjusted_mode.flags &= ~(DRM_MODE_FLAG_PHSYNC |
+					      DRM_MODE_FLAG_NHSYNC |
+					      DRM_MODE_FLAG_PVSYNC |
+					      DRM_MODE_FLAG_NVSYNC);
+	pipe_config->adjusted_mode.flags |= intel_crt_get_flags(encoder);
 }
 
 /* Note: The caller is required to filter out dpms modes not supported by the
···
 	crt->base.mode_set = intel_crt_mode_set;
 	crt->base.disable = intel_disable_crt;
 	crt->base.enable = intel_enable_crt;
-	crt->base.get_config = intel_crt_get_config;
+	if (IS_HASWELL(dev))
+		crt->base.get_config = hsw_crt_get_config;
+	else
+		crt->base.get_config = intel_crt_get_config;
 	if (I915_HAS_HOTPLUG(dev))
 		crt->base.hpd_pin = HPD_CRT;
 	if (HAS_DDI(dev))

drivers/gpu/drm/i915/intel_ddi.c

···
 		intel_dp_check_link_status(intel_dp);
 }
 
-static void intel_ddi_get_config(struct intel_encoder *encoder,
-				 struct intel_crtc_config *pipe_config)
+void intel_ddi_get_config(struct intel_encoder *encoder,
+			  struct intel_crtc_config *pipe_config)
 {
 	struct drm_i915_private *dev_priv = encoder->base.dev->dev_private;
 	struct intel_crtc *intel_crtc = to_intel_crtc(encoder->base.crtc);
···
 		flags |= DRM_MODE_FLAG_NVSYNC;
 
 	pipe_config->adjusted_mode.flags |= flags;
+
+	switch (temp & TRANS_DDI_BPC_MASK) {
+	case TRANS_DDI_BPC_6:
+		pipe_config->pipe_bpp = 18;
+		break;
+	case TRANS_DDI_BPC_8:
+		pipe_config->pipe_bpp = 24;
+		break;
+	case TRANS_DDI_BPC_10:
+		pipe_config->pipe_bpp = 30;
+		break;
+	case TRANS_DDI_BPC_12:
+		pipe_config->pipe_bpp = 36;
+		break;
+	default:
+		break;
+	}
 }
 
 static void intel_ddi_destroy(struct drm_encoder *encoder)

drivers/gpu/drm/i915/intel_display.c

···
 			   FDI_FE_ERRC_ENABLE);
 }
 
-static bool pipe_has_enabled_pch(struct intel_crtc *intel_crtc)
+static bool pipe_has_enabled_pch(struct intel_crtc *crtc)
 {
-	return intel_crtc->base.enabled && intel_crtc->config.has_pch_encoder;
+	return crtc->base.enabled && crtc->active &&
+		crtc->config.has_pch_encoder;
 }
 
 static void ivb_modeset_global_resources(struct drm_device *dev)
···
 		   I915_READ(VSYNCSHIFT(cpu_transcoder)));
 }
 
+static void cpt_enable_fdi_bc_bifurcation(struct drm_device *dev)
+{
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	uint32_t temp;
+
+	temp = I915_READ(SOUTH_CHICKEN1);
+	if (temp & FDI_BC_BIFURCATION_SELECT)
+		return;
+
+	WARN_ON(I915_READ(FDI_RX_CTL(PIPE_B)) & FDI_RX_ENABLE);
+	WARN_ON(I915_READ(FDI_RX_CTL(PIPE_C)) & FDI_RX_ENABLE);
+
+	temp |= FDI_BC_BIFURCATION_SELECT;
+	DRM_DEBUG_KMS("enabling fdi C rx\n");
+	I915_WRITE(SOUTH_CHICKEN1, temp);
+	POSTING_READ(SOUTH_CHICKEN1);
+}
+
+static void ivybridge_update_fdi_bc_bifurcation(struct intel_crtc *intel_crtc)
+{
+	struct drm_device *dev = intel_crtc->base.dev;
+	struct drm_i915_private *dev_priv = dev->dev_private;
+
+	switch (intel_crtc->pipe) {
+	case PIPE_A:
+		break;
+	case PIPE_B:
+		if (intel_crtc->config.fdi_lanes > 2)
+			WARN_ON(I915_READ(SOUTH_CHICKEN1) & FDI_BC_BIFURCATION_SELECT);
+		else
+			cpt_enable_fdi_bc_bifurcation(dev);
+
+		break;
+	case PIPE_C:
+		cpt_enable_fdi_bc_bifurcation(dev);
+
+		break;
+	default:
+		BUG();
+	}
+}
+
 /*
  * Enable PCH resources required for PCH ports:
  *   - PCH PLLs
···
 	u32 reg, temp;
 
 	assert_pch_transcoder_disabled(dev_priv, pipe);
+
+	if (IS_IVYBRIDGE(dev))
+		ivybridge_update_fdi_bc_bifurcation(intel_crtc);
 
 	/* Write the TU size bits before fdi link training, so that error
 	 * detection works. */
···
 	if (!(tmp & PIPECONF_ENABLE))
 		return false;
 
+	if (IS_G4X(dev) || IS_VALLEYVIEW(dev)) {
+		switch (tmp & PIPECONF_BPC_MASK) {
+		case PIPECONF_6BPC:
+			pipe_config->pipe_bpp = 18;
+			break;
+		case PIPECONF_8BPC:
+			pipe_config->pipe_bpp = 24;
+			break;
+		case PIPECONF_10BPC:
+			pipe_config->pipe_bpp = 30;
+			break;
+		default:
+			break;
+		}
+	}
+
 	intel_get_pipe_timings(crtc, pipe_config);
 
 	i9xx_get_pfit_config(crtc, pipe_config);
···
 	return true;
 }
 
-static void cpt_enable_fdi_bc_bifurcation(struct drm_device *dev)
-{
-	struct drm_i915_private *dev_priv = dev->dev_private;
-	uint32_t temp;
-
-	temp = I915_READ(SOUTH_CHICKEN1);
-	if (temp & FDI_BC_BIFURCATION_SELECT)
-		return;
-
-	WARN_ON(I915_READ(FDI_RX_CTL(PIPE_B)) & FDI_RX_ENABLE);
-	WARN_ON(I915_READ(FDI_RX_CTL(PIPE_C)) & FDI_RX_ENABLE);
-
-	temp |= FDI_BC_BIFURCATION_SELECT;
-	DRM_DEBUG_KMS("enabling fdi C rx\n");
-	I915_WRITE(SOUTH_CHICKEN1, temp);
-	POSTING_READ(SOUTH_CHICKEN1);
-}
-
-static void ivybridge_update_fdi_bc_bifurcation(struct intel_crtc *intel_crtc)
-{
-	struct drm_device *dev = intel_crtc->base.dev;
-	struct drm_i915_private *dev_priv = dev->dev_private;
-
-	switch (intel_crtc->pipe) {
-	case PIPE_A:
-		break;
-	case PIPE_B:
-		if (intel_crtc->config.fdi_lanes > 2)
-			WARN_ON(I915_READ(SOUTH_CHICKEN1) & FDI_BC_BIFURCATION_SELECT);
-		else
-			cpt_enable_fdi_bc_bifurcation(dev);
-
-		break;
-	case PIPE_C:
-		cpt_enable_fdi_bc_bifurcation(dev);
-
-		break;
-	default:
-		BUG();
-	}
-}
-
 int ironlake_get_lanes_required(int target_clock, int link_bw, int bpp)
 {
 	/*
···
 					     &intel_crtc->config.fdi_m_n);
 	}
 
-	if (IS_IVYBRIDGE(dev))
-		ivybridge_update_fdi_bc_bifurcation(intel_crtc);
-
 	ironlake_set_pipeconf(crtc);
 
 	/* Set up the display plane register */
···
 	tmp = I915_READ(PIPECONF(crtc->pipe));
 	if (!(tmp & PIPECONF_ENABLE))
 		return false;
+
+	switch (tmp & PIPECONF_BPC_MASK) {
+	case PIPECONF_6BPC:
+		pipe_config->pipe_bpp = 18;
+		break;
+	case PIPECONF_8BPC:
+		pipe_config->pipe_bpp = 24;
+		break;
+	case PIPECONF_10BPC:
+		pipe_config->pipe_bpp = 30;
+		break;
+	case PIPECONF_12BPC:
+		pipe_config->pipe_bpp = 36;
+		break;
+	default:
+		break;
+	}
 
 	if (I915_READ(PCH_TRANSCONF(crtc->pipe)) & TRANS_ENABLE) {
 		struct intel_shared_dpll *pll;
···
 	PIPE_CONF_CHECK_X(dpll_hw_state.dpll_md);
 	PIPE_CONF_CHECK_X(dpll_hw_state.fp0);
 	PIPE_CONF_CHECK_X(dpll_hw_state.fp1);
+
+	if (IS_G4X(dev) || INTEL_INFO(dev)->gen >= 5)
+		PIPE_CONF_CHECK_I(pipe_bpp);
 
 #undef PIPE_CONF_CHECK_X
 #undef PIPE_CONF_CHECK_I

drivers/gpu/drm/i915/intel_dp.c

···
 		else
 			pipe_config->port_clock = 270000;
 	}
+
+	if (is_edp(intel_dp) && dev_priv->vbt.edp_bpp &&
+	    pipe_config->pipe_bpp > dev_priv->vbt.edp_bpp) {
+		/*
+		 * This is a big fat ugly hack.
+		 *
+		 * Some machines in UEFI boot mode provide us a VBT that has 18
+		 * bpp and 1.62 GHz link bandwidth for eDP, which for reasons
+		 * unknown we fail to light up. Yet the same BIOS boots up with
+		 * 24 bpp and 2.7 GHz link. Use the same bpp as the BIOS uses as
+		 * max, not what it tells us to use.
+		 *
+		 * Note: This will still be broken if the eDP panel is not lit
+		 * up by the BIOS, and thus we can't get the mode at module
+		 * load.
+		 */
+		DRM_DEBUG_KMS("pipe has %d bpp for eDP panel, overriding BIOS-provided max %d bpp\n",
+			      pipe_config->pipe_bpp, dev_priv->vbt.edp_bpp);
+		dev_priv->vbt.edp_bpp = pipe_config->pipe_bpp;
+	}
 }
 
 static bool is_edp_psr(struct intel_dp *intel_dp)

drivers/gpu/drm/i915/intel_drv.h

···
 extern bool
 intel_ddi_connector_get_hw_state(struct intel_connector *intel_connector);
 extern void intel_ddi_fdi_disable(struct drm_crtc *crtc);
+extern void intel_ddi_get_config(struct intel_encoder *encoder,
+				 struct intel_crtc_config *pipe_config);
 
 extern void intel_display_handle_reset(struct drm_device *dev);
 extern bool intel_set_cpu_fifo_underrun_reporting(struct drm_device *dev,

drivers/gpu/drm/i915/intel_lvds.c

···
 	},
 	{
 		.callback = intel_no_lvds_dmi_callback,
+		.ident = "Intel D410PT",
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "Intel"),
+			DMI_MATCH(DMI_BOARD_NAME, "D410PT"),
+		},
+	},
+	{
+		.callback = intel_no_lvds_dmi_callback,
+		.ident = "Intel D425KT",
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "Intel"),
+			DMI_EXACT_MATCH(DMI_BOARD_NAME, "D425KT"),
+		},
+	},
+	{
+		.callback = intel_no_lvds_dmi_callback,
 		.ident = "Intel D510MO",
 		.matches = {
 			DMI_MATCH(DMI_BOARD_VENDOR, "Intel"),

drivers/gpu/drm/radeon/evergreen_hdmi.c

···
 	/* fglrx clears sth in AFMT_AUDIO_PACKET_CONTROL2 here */
 
 	WREG32(HDMI_ACR_PACKET_CONTROL + offset,
+	       HDMI_ACR_SOURCE | /* select SW CTS value */
 	       HDMI_ACR_AUTO_SEND); /* allow hw to sent ACR packets when required */
 
 	evergreen_hdmi_update_ACR(encoder, mode->clock);

drivers/gpu/drm/radeon/kv_dpm.c

···
 	pi->caps_sclk_ds = true;
 	pi->enable_auto_thermal_throttling = true;
 	pi->disable_nb_ps3_in_battery = false;
-	pi->bapm_enable = true;
+	pi->bapm_enable = false;
 	pi->voltage_drop_t = 0;
 	pi->caps_sclk_throttle_low_notification = false;
 	pi->caps_fps = false; /* true? */

drivers/gpu/drm/radeon/radeon.h

···
 struct radeon_clock_and_voltage_limits {
 	u32 sclk;
 	u32 mclk;
-	u32 vddc;
-	u32 vddci;
+	u16 vddc;
+	u16 vddci;
 };
 
 struct radeon_clock_array {

drivers/input/input.c

···
  */
 struct input_dev *input_allocate_device(void)
 {
+	static atomic_t input_no = ATOMIC_INIT(0);
 	struct input_dev *dev;
 
 	dev = kzalloc(sizeof(struct input_dev), GFP_KERNEL);
···
 		device_initialize(&dev->dev);
 		mutex_init(&dev->mutex);
 		spin_lock_init(&dev->event_lock);
+		init_timer(&dev->timer);
 		INIT_LIST_HEAD(&dev->h_list);
 		INIT_LIST_HEAD(&dev->node);
+
+		dev_set_name(&dev->dev, "input%ld",
+			     (unsigned long) atomic_inc_return(&input_no) - 1);
 
 		__module_get(THIS_MODULE);
 	}
···
  */
 int input_register_device(struct input_dev *dev)
 {
-	static atomic_t input_no = ATOMIC_INIT(0);
 	struct input_devres *devres = NULL;
 	struct input_handler *handler;
 	unsigned int packet_size;
···
 	 * If delay and period are pre-set by the driver, then autorepeating
 	 * is handled by the driver itself and we don't do it in input.c.
 	 */
-	init_timer(&dev->timer);
 	if (!dev->rep[REP_DELAY] && !dev->rep[REP_PERIOD]) {
 		dev->timer.data = (long) dev;
 		dev->timer.function = input_repeat_key;
···
 
 	if (!dev->setkeycode)
 		dev->setkeycode = input_default_setkeycode;
-
-	dev_set_name(&dev->dev, "input%ld",
-		     (unsigned long) atomic_inc_return(&input_no) - 1);
 
 	error = device_add(&dev->dev);
 	if (error)

drivers/input/keyboard/pxa27x_keypad.c

···
 	input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP);
 	input_set_capability(input_dev, EV_MSC, MSC_SCAN);
 
-	if (pdata)
+	if (pdata) {
 		error = pxa27x_keypad_build_keycode(keypad);
-	else
+	} else {
 		error = pxa27x_keypad_build_keycode_from_dt(keypad);
+		/*
+		 * Data that we get from DT resides in dynamically
+		 * allocated memory so we need to update our pdata
+		 * pointer.
+		 */
+		pdata = keypad->pdata;
+	}
 	if (error) {
 		dev_err(&pdev->dev, "failed to build keycode\n");
 		goto failed_put_clk;

drivers/input/misc/cm109.c

···
 	if (status) {
 		if (status == -ESHUTDOWN)
 			return;
-		dev_err(&dev->intf->dev, "%s: urb status %d\n", __func__, status);
+		dev_err_ratelimited(&dev->intf->dev, "%s: urb status %d\n",
+				    __func__, status);
+		goto out;
 	}
 
 	/* Special keys */
···
 	     dev->ctl_data->byte[2],
 	     dev->ctl_data->byte[3]);
 
-	if (status)
-		dev_err(&dev->intf->dev, "%s: urb status %d\n", __func__, status);
+	if (status) {
+		if (status == -ESHUTDOWN)
+			return;
+		dev_err_ratelimited(&dev->intf->dev, "%s: urb status %d\n",
+				    __func__, status);
+	}
 
 	spin_lock(&dev->ctl_submit_lock);
 
···
 
 	if (likely(!dev->shutdown)) {
 
-		if (dev->buzzer_pending) {
+		if (dev->buzzer_pending || status) {
 			dev->buzzer_pending = 0;
 			dev->ctl_urb_pending = 1;
 			cm109_submit_buzz_toggle(dev);

drivers/input/mouse/alps.c

···
 	/* Dell Latitude E5500, E6400, E6500, Precision M4400 */
 	{ { 0x62, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2, 0xcf, 0xcf,
 		ALPS_PASS | ALPS_DUALPOINT | ALPS_PS2_INTERLEAVED },
+	{ { 0x73, 0x00, 0x14 }, 0x00, ALPS_PROTO_V2, 0xcf, 0xcf, ALPS_DUALPOINT },		/* Dell XT2 */
 	{ { 0x73, 0x02, 0x50 }, 0x00, ALPS_PROTO_V2, 0xcf, 0xcf, ALPS_FOUR_BUTTONS },		/* Dell Vostro 1400 */
 	{ { 0x52, 0x01, 0x14 }, 0x00, ALPS_PROTO_V2, 0xff, 0xff,
 		ALPS_PASS | ALPS_DUALPOINT | ALPS_PS2_INTERLEAVED },				/* Toshiba Tecra A11-11L */

drivers/input/serio/i8042.c

···
 {
 	unsigned long flags;
 	unsigned char data, str;
-	int i = 0;
+	int count = 0;
+	int retval = 0;
 
 	spin_lock_irqsave(&i8042_lock, flags);
 
-	while (((str = i8042_read_status()) & I8042_STR_OBF) && (i < I8042_BUFFER_SIZE)) {
-		udelay(50);
-		data = i8042_read_data();
-		i++;
-		dbg("%02x <- i8042 (flush, %s)\n",
-		    data, str & I8042_STR_AUXDATA ? "aux" : "kbd");
+	while ((str = i8042_read_status()) & I8042_STR_OBF) {
+		if (count++ < I8042_BUFFER_SIZE) {
+			udelay(50);
+			data = i8042_read_data();
+			dbg("%02x <- i8042 (flush, %s)\n",
+			    data, str & I8042_STR_AUXDATA ? "aux" : "kbd");
+		} else {
+			retval = -EIO;
+			break;
+		}
 	}
 
 	spin_unlock_irqrestore(&i8042_lock, flags);
 
-	return i;
+	return retval;
 }
 
 /*
···
 
 static int i8042_controller_check(void)
 {
-	if (i8042_flush() == I8042_BUFFER_SIZE) {
+	if (i8042_flush()) {
 		pr_err("No controller found\n");
 		return -ENODEV;
 	}

drivers/input/tablet/wacom_sys.c

···
 }
 
 static enum power_supply_property wacom_battery_props[] = {
+	POWER_SUPPLY_PROP_SCOPE,
 	POWER_SUPPLY_PROP_CAPACITY
 };
 
···
 	int ret = 0;
 
 	switch (psp) {
+		case POWER_SUPPLY_PROP_SCOPE:
+			val->intval = POWER_SUPPLY_SCOPE_DEVICE;
+			break;
 		case POWER_SUPPLY_PROP_CAPACITY:
 			val->intval =
 				wacom->wacom_wac.battery_capacity * 100 / 31;

drivers/input/tablet/wacom_wac.c

···
 static const struct wacom_features wacom_features_0x10D =
 	{ "Wacom ISDv4 10D",      WACOM_PKGLEN_MTTPC,     26202, 16325,  255,
 	  0, MTTPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0x10E =
+	{ "Wacom ISDv4 10E",      WACOM_PKGLEN_MTTPC,     27760, 15694,  255,
+	  0, MTTPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0x10F =
+	{ "Wacom ISDv4 10F",      WACOM_PKGLEN_MTTPC,     27760, 15694,  255,
+	  0, MTTPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
 static const struct wacom_features wacom_features_0x4001 =
 	{ "Wacom ISDv4 4001",      WACOM_PKGLEN_MTTPC,     26202, 16325,  255,
 	  0, MTTPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
···
 	{ USB_DEVICE_WACOM(0x100) },
 	{ USB_DEVICE_WACOM(0x101) },
 	{ USB_DEVICE_WACOM(0x10D) },
+	{ USB_DEVICE_WACOM(0x10E) },
+	{ USB_DEVICE_WACOM(0x10F) },
 	{ USB_DEVICE_WACOM(0x300) },
 	{ USB_DEVICE_WACOM(0x301) },
 	{ USB_DEVICE_WACOM(0x304) },

drivers/pci/hotplug/acpiphp_glue.c

···
 	struct acpiphp_func *func;
 	int max, pass;
 	LIST_HEAD(add_list);
-	int nr_found;
 
-	nr_found = acpiphp_rescan_slot(slot);
+	acpiphp_rescan_slot(slot);
 	max = acpiphp_max_busnr(bus);
 	for (pass = 0; pass < 2; pass++) {
 		list_for_each_entry(dev, &bus->devices, bus_list) {
···
 		}
 	}
 	__pci_bus_assign_resources(bus, &add_list, NULL);
-	/* Nothing more to do here if there are no new devices on this bus. */
-	if (!nr_found && (slot->flags & SLOT_ENABLED))
-		return;
 
 	acpiphp_sanitize_bus(bus);
 	acpiphp_set_hpp_values(bus);

drivers/scsi/aacraid/linit.c

···
 static int aac_compat_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
 {
 	struct aac_dev *dev = (struct aac_dev *)sdev->host->hostdata;
+	if (!capable(CAP_SYS_RAWIO))
+		return -EPERM;
 	return aac_compat_do_ioctl(dev, cmd, (unsigned long)arg);
 }
 

drivers/scsi/sg.c

···
 static int sg_add(struct device *, struct class_interface *);
 static void sg_remove(struct device *, struct class_interface *);
 
+static DEFINE_SPINLOCK(sg_open_exclusive_lock);
+
 static DEFINE_IDR(sg_index_idr);
-static DEFINE_RWLOCK(sg_index_lock);
+static DEFINE_RWLOCK(sg_index_lock);	/* Also used to lock
+							   file descriptor list for device */
 
 static struct class_interface sg_interface = {
 	.add_dev	= sg_add,
···
 } Sg_request;
 
 typedef struct sg_fd {		/* holds the state of a file descriptor */
-	struct list_head sfd_siblings; /* protected by sfd_lock of device */
+	/* sfd_siblings is protected by sg_index_lock */
+	struct list_head sfd_siblings;
 	struct sg_device *parentdp;	/* owning device */
 	wait_queue_head_t read_wait;	/* queue read until command done */
 	rwlock_t rq_list_lock;	/* protect access to list in req_arr */
···
 
 typedef struct sg_device { /* holds the state of each scsi generic device */
 	struct scsi_device *device;
+	wait_queue_head_t o_excl_wait;	/* queue open() when O_EXCL in use */
 	int sg_tablesize;	/* adapter's max scatter-gather table size */
 	u32 index;		/* device index number */
-	spinlock_t sfd_lock;	/* protect file descriptor list for device */
+	/* sfds is protected by sg_index_lock */
 	struct list_head sfds;
-	struct rw_semaphore o_sem;	/* exclude open should hold this rwsem */
 	volatile char detached;	/* 0->attached, 1->detached pending removal */
+	/* exclude protected by sg_open_exclusive_lock */
 	char exclude;		/* opened for exclusive access */
 	char sgdebug;		/* 0->off, 1->sense, 9->dump dev, 10-> all devs */
 	struct gendisk *disk;
···
 	return blk_verify_command(cmd, filp->f_mode & FMODE_WRITE);
 }
 
+static int get_exclude(Sg_device *sdp)
+{
+	unsigned long flags;
+	int ret;
+
+	spin_lock_irqsave(&sg_open_exclusive_lock, flags);
+	ret = sdp->exclude;
+	spin_unlock_irqrestore(&sg_open_exclusive_lock, flags);
+	return ret;
+}
+
+static int set_exclude(Sg_device *sdp, char val)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&sg_open_exclusive_lock, flags);
+	sdp->exclude = val;
+	spin_unlock_irqrestore(&sg_open_exclusive_lock, flags);
+	return val;
+}
+
 static int sfds_list_empty(Sg_device *sdp)
 {
 	unsigned long flags;
 	int ret;
 
-	spin_lock_irqsave(&sdp->sfd_lock, flags);
+	read_lock_irqsave(&sg_index_lock, flags);
 	ret = list_empty(&sdp->sfds);
-	spin_unlock_irqrestore(&sdp->sfd_lock, flags);
+	read_unlock_irqrestore(&sg_index_lock, flags);
 	return ret;
 }
 
···
 	struct request_queue *q;
 	Sg_device *sdp;
 	Sg_fd *sfp;
+	int res;
 	int retval;
 
 	nonseekable_open(inode, filp);
···
 		goto error_out;
 	}
 
-	if ((flags & O_EXCL) && (O_RDONLY == (flags & O_ACCMODE))) {
-		retval = -EPERM; /* Can't lock it with read only access */
+	if (flags & O_EXCL) {
+		if (O_RDONLY == (flags & O_ACCMODE)) {
+			retval = -EPERM; /* Can't lock it with read only access */
+			goto error_out;
+		}
+		if (!sfds_list_empty(sdp) && (flags & O_NONBLOCK)) {
+			retval = -EBUSY;
+			goto error_out;
+		}
+		res = wait_event_interruptible(sdp->o_excl_wait,
+					   ((!sfds_list_empty(sdp) || get_exclude(sdp)) ? 0 : set_exclude(sdp, 1)));
+		if (res) {
+			retval = res;	/* -ERESTARTSYS because signal hit process */
+			goto error_out;
+		}
+	} else if (get_exclude(sdp)) {	/* some other fd has an exclusive lock on dev */
+		if (flags & O_NONBLOCK) {
+			retval = -EBUSY;
+			goto error_out;
+		}
+		res = wait_event_interruptible(sdp->o_excl_wait, !get_exclude(sdp));
+		if (res) {
+			retval = res;	/* -ERESTARTSYS because signal hit process */
+			goto error_out;
+		}
+	}
+	if (sdp->detached) {
+		retval = -ENODEV;
 		goto error_out;
 	}
-	if (flags & O_NONBLOCK) {
-		if (flags & O_EXCL) {
-			if (!down_write_trylock(&sdp->o_sem)) {
-				retval = -EBUSY;
-				goto error_out;
-			}
-		} else {
-			if (!down_read_trylock(&sdp->o_sem)) {
-				retval = -EBUSY;
-				goto error_out;
-			}
-		}
-	} else {
-		if (flags & O_EXCL)
-			down_write(&sdp->o_sem);
-		else
-			down_read(&sdp->o_sem);
-	}
-	/* Since write lock is held, no need to check sfd_list */
-	if (flags & O_EXCL)
-		sdp->exclude = 1;	/* used by release lock */
-
 	if (sfds_list_empty(sdp)) {	/* no existing opens on this device */
 		sdp->sgdebug = 0;
 		q = sdp->device->request_queue;
 		sdp->sg_tablesize = queue_max_segments(q);
 	}
-	sfp = sg_add_sfp(sdp, dev);
-	if (!IS_ERR(sfp))
+	if ((sfp = sg_add_sfp(sdp, dev)))
 		filp->private_data = sfp;
-		/* retval is already provably zero at this point because of the
-		 * check after retval = scsi_autopm_get_device(sdp->device))
-		 */
 	else {
-		retval = PTR_ERR(sfp);
-
 		if (flags & O_EXCL) {
-			sdp->exclude = 0;	/* undo if error */
-			up_write(&sdp->o_sem);
-		} else
-			up_read(&sdp->o_sem);
+			set_exclude(sdp, 0);	/* undo if error */
+			wake_up_interruptible(&sdp->o_excl_wait);
+		}
+		retval = -ENOMEM;
+		goto error_out;
+	}
+	retval = 0;
 error_out:
+	if (retval) {
 		scsi_autopm_put_device(sdp->device);
 sdp_put:
 		scsi_device_put(sdp->device);
···
 {
 	Sg_device *sdp;
 	Sg_fd *sfp;
-	int excl;
 
 	if ((!(sfp = (Sg_fd *) filp->private_data)) || (!(sdp = sfp->parentdp)))
 		return -ENXIO;
 	SCSI_LOG_TIMEOUT(3, printk("sg_release: %s\n", sdp->disk->disk_name));
 
-	excl = sdp->exclude;
-	sdp->exclude = 0;
-	if (excl)
-		up_write(&sdp->o_sem);
-	else
-		up_read(&sdp->o_sem);
+	set_exclude(sdp, 0);
+	wake_up_interruptible(&sdp->o_excl_wait);
 
 	scsi_autopm_put_device(sdp->device);
 	kref_put(&sfp->f_ref, sg_remove_sfp);
···
 	disk->first_minor = k;
 	sdp->disk = disk;
 	sdp->device = scsidp;
-	spin_lock_init(&sdp->sfd_lock);
 	INIT_LIST_HEAD(&sdp->sfds);
-	init_rwsem(&sdp->o_sem);
+	init_waitqueue_head(&sdp->o_excl_wait);
 	sdp->sg_tablesize = queue_max_segments(q);
 	sdp->index = k;
 	kref_init(&sdp->d_ref);
···
 
 	/* Need a write lock to set sdp->detached. */
 	write_lock_irqsave(&sg_index_lock, iflags);
-	spin_lock(&sdp->sfd_lock);
 	sdp->detached = 1;
 	list_for_each_entry(sfp, &sdp->sfds, sfd_siblings) {
 		wake_up_interruptible(&sfp->read_wait);
 		kill_fasync(&sfp->async_qp, SIGPOLL, POLL_HUP);
 	}
-	spin_unlock(&sdp->sfd_lock);
 	write_unlock_irqrestore(&sg_index_lock, iflags);
 
 	sysfs_remove_link(&scsidp->sdev_gendev.kobj, "generic");
···
 
 	sfp = kzalloc(sizeof(*sfp), GFP_ATOMIC | __GFP_NOWARN);
 	if (!sfp)
-		return ERR_PTR(-ENOMEM);
+		return NULL;
 
 	init_waitqueue_head(&sfp->read_wait);
 	rwlock_init(&sfp->rq_list_lock);
···
 	sfp->cmd_q = SG_DEF_COMMAND_Q;
 	sfp->keep_orphan = SG_DEF_KEEP_ORPHAN;
 	sfp->parentdp = sdp;
-	spin_lock_irqsave(&sdp->sfd_lock, iflags);
-	if (sdp->detached) {
-		spin_unlock_irqrestore(&sdp->sfd_lock, iflags);
-		return ERR_PTR(-ENODEV);
-	}
+	write_lock_irqsave(&sg_index_lock, iflags);
 	list_add_tail(&sfp->sfd_siblings, &sdp->sfds);
-	spin_unlock_irqrestore(&sdp->sfd_lock, iflags);
+	write_unlock_irqrestore(&sg_index_lock, iflags);
 	SCSI_LOG_TIMEOUT(3, printk("sg_add_sfp: sfp=0x%p\n", sfp));
 	if (unlikely(sg_big_buff != def_reserved_size))
 		sg_big_buff = def_reserved_size;
···
 	struct sg_device *sdp = sfp->parentdp;
 	unsigned long iflags;
 
-	spin_lock_irqsave(&sdp->sfd_lock, iflags);
+	write_lock_irqsave(&sg_index_lock, iflags);
 	list_del(&sfp->sfd_siblings);
-	spin_unlock_irqrestore(&sdp->sfd_lock, iflags);
+	write_unlock_irqrestore(&sg_index_lock, iflags);
+	wake_up_interruptible(&sdp->o_excl_wait);
 
 	INIT_WORK(&sfp->ew.work, sg_remove_sfp_usercontext);
 	schedule_work(&sfp->ew.work);
···
 	return 0;
 }
 
-/* must be called while holding sg_index_lock and sfd_lock */
+/* must be called while holding sg_index_lock */
 static void sg_proc_debug_helper(struct seq_file *s, Sg_device * sdp)
 {
 	int k, m, new_interface, blen, usg;
···
 
 	read_lock_irqsave(&sg_index_lock, iflags);
 	sdp = it ? sg_lookup_dev(it->index) : NULL;
-	if (sdp) {
-		spin_lock(&sdp->sfd_lock);
-		if (!list_empty(&sdp->sfds)) {
-			struct scsi_device *scsidp = sdp->device;
+	if (sdp && !list_empty(&sdp->sfds)) {
+		struct scsi_device *scsidp = sdp->device;
 
-			seq_printf(s, " >>> device=%s ", sdp->disk->disk_name);
-			if (sdp->detached)
-				seq_printf(s, "detached pending close ");
-			else
-				seq_printf
-				    (s, "scsi%d chan=%d id=%d lun=%d   em=%d",
-				     scsidp->host->host_no,
-				     scsidp->channel, scsidp->id,
-				     scsidp->lun,
-				     scsidp->host->hostt->emulated);
-			seq_printf(s, " sg_tablesize=%d excl=%d\n",
-				   sdp->sg_tablesize, sdp->exclude);
-			sg_proc_debug_helper(s, sdp);
-		}
-		spin_unlock(&sdp->sfd_lock);
+		seq_printf(s, " >>> device=%s ", sdp->disk->disk_name);
+		if (sdp->detached)
+			seq_printf(s, "detached pending close ");
+		else
+			seq_printf
+			    (s, "scsi%d chan=%d id=%d lun=%d   em=%d",
+			     scsidp->host->host_no,
+			     scsidp->channel, scsidp->id,
+			     scsidp->lun,
+			     scsidp->host->hostt->emulated);
+		seq_printf(s, " sg_tablesize=%d excl=%d\n",
+			   sdp->sg_tablesize, get_exclude(sdp));
+		sg_proc_debug_helper(s, sdp);
 	}
 	read_unlock_irqrestore(&sg_index_lock, iflags);
 	return 0;

drivers/staging/bcm/Bcmchar.c

···
 
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, OSAL_DBG, DBG_LVL_ALL, "Called IOCTL_BCM_GET_DEVICE_DRIVER_INFO\n");
 
+		memset(&DevInfo, 0, sizeof(DevInfo));
 		DevInfo.MaxRDMBufferSize = BUFFER_4K;
 		DevInfo.u32DSDStartOffset = EEPROM_CALPARAM_START;
 		DevInfo.u32RxAlignmentCorrection = 0;

drivers/staging/ozwpan/ozcdev.c

···
 	struct oz_app_hdr *app_hdr;
 	struct oz_serial_ctx *ctx;
 
+	if (count > sizeof(ei->data) - sizeof(*elt) - sizeof(*app_hdr))
+		return -EINVAL;
+
 	spin_lock_bh(&g_cdev.lock);
 	pd = g_cdev.active_pd;
 	if (pd)

drivers/staging/sb105x/sb_pci_mp.c

···
 
 static int mp_get_count(struct sb_uart_state *state, struct serial_icounter_struct *icnt)
 {
-	struct serial_icounter_struct icount;
+	struct serial_icounter_struct icount = {};
 	struct sb_uart_icount cnow;
 	struct sb_uart_port *port = state->port;
 

drivers/staging/wlags49_h2/wl_priv.c

···
 	ltv_t                   *pLtv;
 	bool_t                  ltvAllocated = FALSE;
 	ENCSTRCT                sEncryption;
+	size_t			len;
 
 #ifdef USE_WDS
 	hcf_16                  hcfPort  = HCF_PORT_0;
···
 					break;
 				case CFG_CNF_OWN_NAME:
 					memset(lp->StationName, 0, sizeof(lp->StationName));
-					memcpy((void *)lp->StationName, (void *)&pLtv->u.u8[2], (size_t)pLtv->u.u16[0]);
+					len = min_t(size_t, pLtv->u.u16[0], sizeof(lp->StationName));
+					strlcpy(lp->StationName, &pLtv->u.u8[2], len);
 					pLtv->u.u16[0] = CNV_INT_TO_LITTLE(pLtv->u.u16[0]);
 					break;
 				case CFG_CNF_LOAD_BALANCING:
···
 {
 	struct wl_private *lp = wl_priv(dev);
 	unsigned long flags;
+	size_t len;
 	int         ret = 0;
 	/*------------------------------------------------------------------------*/
 
···
 	wl_lock(lp, &flags);
 
 	memset(lp->StationName, 0, sizeof(lp->StationName));
-
-	memcpy(lp->StationName, extra, wrqu->data.length);
+	len = min_t(size_t, wrqu->data.length, sizeof(lp->StationName));
+	strlcpy(lp->StationName, extra, len);
 
 	/* Commit the adapter parameters */
 	wl_apply(lp);

drivers/tty/serial/atmel_serial.c

···
 /*
  * Get ip name usart or uart
  */
-static int atmel_get_ip_name(struct uart_port *port)
+static void atmel_get_ip_name(struct uart_port *port)
 {
 	struct atmel_uart_port *atmel_port = to_atmel_uart_port(port);
 	int name = UART_GET_IP_NAME(port);
···
 		atmel_port->is_usart = false;
 	} else {
 		dev_err(port->dev, "Not supported ip name, set to uart\n");
-		return -EINVAL;
 	}
-
-	return 0;
 }
 
 /*
···
 	/*
 	 * Get port name of usart or uart
 	 */
-	ret = atmel_get_ip_name(&port->uart);
-	if (ret < 0)
-		goto err_add_port;
+	atmel_get_ip_name(&port->uart);
 
 	return 0;
 

drivers/uio/uio.c

···
 {
 	struct uio_device *idev = vma->vm_private_data;
 	int mi = uio_find_mem_index(vma);
+	struct uio_mem *mem;
 	if (mi < 0)
+		return -EINVAL;
+	mem = idev->info->mem + mi;
+
+	if (vma->vm_end - vma->vm_start > mem->size)
 		return -EINVAL;
 
 	vma->vm_ops = &uio_physical_vm_ops;
-
 	vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
 
+	/*
+	 * We cannot use the vm_iomap_memory() helper here,
+	 * because vma->vm_pgoff is the map index we looked
+	 * up above in uio_find_mem_index(), rather than an
+	 * actual page offset into the mmap.
+	 *
+	 * So we just do the physical mmap without a page
+	 * offset.
+	 */
 	return remap_pfn_range(vma,
 			       vma->vm_start,
-			       idev->info->mem[mi].addr >> PAGE_SHIFT,
+			       mem->addr >> PAGE_SHIFT,
 			       vma->vm_end - vma->vm_start,
 			       vma->vm_page_prot);
 }

drivers/usb/serial/ftdi_sio.c

···
 	{ USB_DEVICE(FTDI_VID, FTDI_LUMEL_PD12_PID) },
 	/* Crucible Devices */
 	{ USB_DEVICE(FTDI_VID, FTDI_CT_COMET_PID) },
+	{ USB_DEVICE(FTDI_VID, FTDI_Z3X_PID) },
 	{ }					/* Terminating entry */
 };
 

drivers/usb/serial/ftdi_sio_ids.h

···
  * Manufacturer: Crucible Technologies
  */
 #define FTDI_CT_COMET_PID	0x8e08
+
+/*
+ * Product: Z3X Box
+ * Manufacturer: Smart GSM Team
+ */
+#define FTDI_Z3X_PID		0x0011

drivers/usb/serial/pl2303.c

···
  * Copyright (C) 2001-2007 Greg Kroah-Hartman ([e-mail])
  * Copyright (C) 2003 IBM Corp.
  *
- * Copyright (C) 2009, 2013 Frank Schäfer <[e-mail]>
- *  - fixes, improvements and documentation for the baud rate encoding methods
- * Copyright (C) 2013 Reinhard Max <[e-mail]>
- *  - fixes and improvements for the divisor based baud rate encoding method
- *
  * Original driver for 2.2.x by anonymous
  *
  *	This program is free software; you can redistribute it and/or
···
 
 
 enum pl2303_type {
-	type_0,		/* H version ? */
-	type_1,		/* H version ? */
-	HX_TA,		/* HX(A) / X(A) / TA version  */ /* TODO: improve */
-	HXD_EA_RA_SA,	/* HXD / EA / RA / SA version */ /* TODO: improve */
-	TB,		/* TB version */
-	HX_CLONE,	/* Cheap and less functional clone of the HX chip */
+	type_0,		/* don't know the difference between type 0 and */
+	type_1,		/* type 1, until someone from prolific tells us... */
+	HX,		/* HX version of the pl2303 chip */
 };
-/*
- * NOTE: don't know the difference between type 0 and type 1,
- * until someone from Prolific tells us...
- * TODO: distinguish between X/HX, TA and HXD, EA, RA, SA variants
- */
 
 struct pl2303_serial_private {
 	enum pl2303_type type;
···
 {
 	struct pl2303_serial_private *spriv;
 	enum pl2303_type type = type_0;
-	char *type_str = "unknown (treating as type_0)";
 	unsigned char *buf;
 
 	spriv = kzalloc(sizeof(*spriv), GFP_KERNEL);
···
 		return -ENOMEM;
 	}
 
-	if (serial->dev->descriptor.bDeviceClass == 0x02) {
+	if (serial->dev->descriptor.bDeviceClass == 0x02)
 		type = type_0;
-		type_str = "type_0";
-	} else if (serial->dev->descriptor.bMaxPacketSize0 == 0x40) {
-		/*
-		 * NOTE: The bcdDevice version is the only difference between
-		 * the device descriptors of the X/HX, HXD, EA, RA, SA, TA, TB
-		 */
-		if (le16_to_cpu(serial->dev->descriptor.bcdDevice) == 0x300) {
-			/* Check if the device is a clone */
-			pl2303_vendor_read(0x9494, 0, serial, buf);
-			/*
-			 * NOTE: Not sure if this read is really needed.
-			 * The HX returns 0x00, the clone 0x02, but the Windows
-			 * driver seems to ignore the value and continues.
-			 */
-			pl2303_vendor_write(0x0606, 0xaa, serial);
-			pl2303_vendor_read(0x8686, 0, serial, buf);
-			if (buf[0] != 0xaa) {
-				type = HX_CLONE;
-				type_str = "X/HX clone (limited functionality)";
-			} else {
-				type = HX_TA;
-				type_str = "X/HX/TA";
-			}
-			pl2303_vendor_write(0x0606, 0x00, serial);
-		} else if (le16_to_cpu(serial->dev->descriptor.bcdDevice)
-								     == 0x400) {
-			type = HXD_EA_RA_SA;
-			type_str = "HXD/EA/RA/SA";
-		} else if (le16_to_cpu(serial->dev->descriptor.bcdDevice)
-								     == 0x500) {
-			type = TB;
-			type_str = "TB";
-		} else {
-			dev_info(&serial->interface->dev,
-					   "unknown/unsupported device type\n");
-			kfree(spriv);
-			kfree(buf);
-			return -ENODEV;
-		}
-	} else if (serial->dev->descriptor.bDeviceClass == 0x00
-		   || serial->dev->descriptor.bDeviceClass == 0xFF) {
+	else if (serial->dev->descriptor.bMaxPacketSize0 == 0x40)
+		type = HX;
+	else if (serial->dev->descriptor.bDeviceClass == 0x00)
 		type = type_1;
-		type_str = "type_1";
-	}
-	dev_dbg(&serial->interface->dev, "device type: %s\n", type_str);
+	else if (serial->dev->descriptor.bDeviceClass == 0xFF)
+		type = type_1;
+	dev_dbg(&serial->interface->dev, "device type: %d\n", type);
 
 	spriv->type = type;
 	usb_set_serial_data(serial, spriv);
···
 	pl2303_vendor_read(0x8383, 0, serial, buf);
 	pl2303_vendor_write(0, 1, serial);
 	pl2303_vendor_write(1, 0, serial);
-	if (type == type_0 || type == type_1)
-		pl2303_vendor_write(2, 0x24, serial);
-	else
+	if (type == HX)
 		pl2303_vendor_write(2, 0x44, serial);
+	else
+		pl2303_vendor_write(2, 0x24, serial);
 
 	kfree(buf);
 	return 0;
···
 	return retval;
 }
 
-static int pl2303_baudrate_encode_direct(int baud, enum pl2303_type type,
-								      u8 buf[4])
+static void pl2303_encode_baudrate(struct tty_struct *tty,
+					struct usb_serial_port *port,
+					u8 buf[4])
 {
-	/*
-	 * NOTE: Only the values defined in baud_sup are supported !
-	 * => if unsupported values are set, the PL2303 uses 9600 baud instead
-	 * => HX clones just don't work at unsupported baud rates < 115200 baud,
-	 *    for baud rates > 115200 they run at 115200 baud
-	 */
 	const int baud_sup[] = { 75, 150, 300, 600, 1200, 1800, 2400, 3600,
-				 4800, 7200, 9600, 14400, 19200, 28800, 38400,
-				 57600, 115200, 230400, 460800, 614400, 921600,
-				 1228800, 2457600, 3000000, 6000000, 12000000 };
-	/*
-	 * NOTE: With the exception of type_0/1 devices, the following
-	 * additional baud rates are supported (tested with HX rev. 3A only):
-	 * 110*, 56000*, 128000, 134400, 161280, 201600, 256000*, 268800,
-	 * 403200, 806400.	(*: not HX and HX clones)
-	 *
-	 * Maximum values: HXD, TB: 12000000; HX, TA: 6000000;
-	 *                 type_0+1: 1228800; RA: 921600; HX clones, SA: 115200
-	 *
-	 * As long as we are not using this encoding method for anything else
-	 * than the type_0+1, HX and HX clone chips, there is no point in
-	 * complicating the code to support them.
-	 */
+	                         4800, 7200, 9600, 14400, 19200, 28800, 38400,
+	                         57600, 115200, 230400, 460800, 500000, 614400,
+	                         921600, 1228800, 2457600, 3000000, 6000000 };
+
+	struct usb_serial *serial = port->serial;
+	struct pl2303_serial_private *spriv = usb_get_serial_data(serial);
+	int baud;
 	int i;
+
+	/*
+	 * NOTE: Only the values defined in baud_sup are supported!
+	 *       => if unsupported values are set, the PL2303 seems to use
+	 *          9600 baud (at least my PL2303X always does)
+	 */
+	baud = tty_get_baud_rate(tty);
+	dev_dbg(&port->dev, "baud requested = %d\n", baud);
+	if (!baud)
+		return;
 
 	/* Set baudrate to nearest supported value */
 	for (i = 0; i < ARRAY_SIZE(baud_sup); ++i) {
 		if (baud_sup[i] > baud)
 			break;
 	}
+
 	if (i == ARRAY_SIZE(baud_sup))
 		baud = baud_sup[i - 1];
 	else if (i > 0 && (baud_sup[i] - baud) > (baud - baud_sup[i - 1]))
 		baud = baud_sup[i - 1];
 	else
 		baud = baud_sup[i];
-	/* Respect the chip type specific baud rate limits */
-	/*
-	 * FIXME: as long as we don't know how to distinguish between the
-	 * HXD, EA, RA, and SA chip variants, allow the max. value of 12M.
-	 */
-	if (type == HX_TA)
-		baud = min_t(int, baud, 6000000);
-	else if (type == type_0 || type == type_1)
+
+	/* type_0, type_1 only support up to 1228800 baud */
+	if (spriv->type != HX)
 		baud = min_t(int, baud, 1228800);
-	else if (type == HX_CLONE)
-		baud = min_t(int, baud, 115200);
-	/* Direct (standard) baud rate encoding method */
-	put_unaligned_le32(baud, buf);
 
-	return baud;
-}
-
-static int pl2303_baudrate_encode_divisor(int baud, enum pl2303_type type,
-								      u8 buf[4])
-{
-	/*
-	 * Divisor based baud rate encoding method
-	 *
-	 * NOTE: HX clones do NOT support this method.
-	 * It's not clear if the type_0/1 chips support it.
-	 *
-	 * divisor = 12MHz * 32 / baudrate = 2^A * B
-	 *
-	 * with
-	 *
-	 * A = buf[1] & 0x0e
-	 * B = buf[0]  +  (buf[1] & 0x01) << 8
-	 *
-	 * Special cases:
-	 * => 8 < B < 16: device seems to work not properly
-	 * => B <= 8: device uses the max. value B = 512 instead
-	 */
-	unsigned int A, B;
-
-	/*
-	 * NOTE: The Windows driver allows maximum baud rates of 110% of the
-	 * specified maximium value.
-	 * Quick tests with early (2004) HX (rev. A) chips suggest, that even
-	 * higher baud rates (up to the maximum of 24M baud !) are working fine,
-	 * but that should really be tested carefully in "real life" scenarios
-	 * before removing the upper limit completely.
-	 * Baud rates smaller than the specified 75 baud are definitely working
-	 * fine.
-	 */
-	if (type == type_0 || type == type_1)
-		baud = min_t(int, baud, 1228800 * 1.1);
-	else if (type == HX_TA)
-		baud = min_t(int, baud, 6000000 * 1.1);
-	else if (type == HXD_EA_RA_SA)
-		/* HXD, EA: 12Mbps; RA: 1Mbps; SA: 115200 bps */
-		/*
-		 * FIXME: as long as we don't know how to distinguish between
-		 * these chip variants, allow the max. of these values
-		 */
-		baud = min_t(int, baud, 12000000 * 1.1);
-	else if (type == TB)
-		baud = min_t(int, baud, 12000000 * 1.1);
-	/* Determine factors A and B */
-	A = 0;
-	B = 12000000 * 32 / baud;  /* 12MHz */
-	B <<= 1; /* Add one bit for rounding */
-	while (B > (512 << 1) && A <= 14) {
-		A += 2;
-		B >>= 2;
-	}
-	if (A > 14) { /* max. divisor = min. baudrate reached */
-		A = 14;
-		B = 512;
-		/* => ~45.78 baud */
+	if (baud <= 115200) {
+		put_unaligned_le32(baud, buf);
 	} else {
-		B = (B + 1) >> 1; /* Round the last bit */
-	}
-	/* Handle special cases */
-	if (B == 512)
-		B = 0; /* also: 1 to 8 */
-	else if (B < 16)
 		/*
-		 * NOTE: With the current algorithm this happens
-		 * only for A=0 and means that the min. divisor
-		 * (respectively: the max. baudrate) is reached.
+		 * Apparently the formula for higher speeds is:
+		 * baudrate = 12M * 32 / (2^buf[1]) / buf[0]
 		 */
-		B = 16;		/* => 24 MBaud */
-	/* Encode the baud rate */
-	buf[3] = 0x80;     /* Select divisor encoding method */
-	buf[2] = 0;
-	buf[1] = (A & 0x0e);		/* A */
-	buf[1] |= ((B & 0x100) >> 8);	/* MSB of B */
-	buf[0] = B & 0xff;		/* 8 LSBs of B */
-	/* Calculate the actual/resulting baud rate */
-	if (B <= 8)
-		B = 512;
-	baud = 12000000 * 32 / ((1 << A) * B);
+		unsigned tmp = 12000000 * 32 / baud;
+		buf[3] = 0x80;
+		buf[2] = 0;
+		buf[1] = (tmp >= 256);
+		while (tmp >= 256) {
+			tmp >>= 2;
+			buf[1] <<= 1;
+		}
+		buf[0] = tmp;
+	}
 
-	return baud;
-}
-
-static void pl2303_encode_baudrate(struct tty_struct *tty,
-					struct usb_serial_port *port,
-					enum pl2303_type type,
-					u8 buf[4])
-{
-	int baud;
-
-	baud = tty_get_baud_rate(tty);
-	dev_dbg(&port->dev, "baud requested = %d\n", baud);
-	if (!baud)
-		return;
-	/*
-	 * There are two methods for setting/encoding the baud rate
-	 * 1) Direct method: encodes the baud rate value directly
-	 *    => supported by all chip types
-	 * 2) Divisor based method: encodes a divisor to a base value (12MHz*32)
-	 *    => not supported by HX clones (and likely type_0/1 chips)
-	 *
-	 * NOTE: Although the divisor based baud rate encoding method is much
-	 * more flexible, some of the standard baud rate values can not be
-	 * realized exactly. But the difference is very small (max. 0.2%) and
-	 * the device likely uses the same baud rate generator for both methods
-	 * so that there is likley no difference.
-	 */
-	if (type == type_0 || type == type_1 || type == HX_CLONE)
-		baud = pl2303_baudrate_encode_direct(baud, type, buf);
-	else
-		baud = pl2303_baudrate_encode_divisor(baud, type, buf);
 	/* Save resulting baud rate */
 	tty_encode_baud_rate(tty, baud, baud);
 	dev_dbg(&port->dev, "baud set = %d\n", baud);
···
 		dev_dbg(&port->dev, "data bits = %d\n", buf[6]);
 	}
 
-	/* For reference:   buf[0]:buf[3] baud rate value */
-	pl2303_encode_baudrate(tty, port, spriv->type, buf);
+	/* For reference buf[0]:buf[3] baud rate value */
+	pl2303_encode_baudrate(tty, port, &buf[0]);
 
 	/* For reference buf[4]=0 is 1 stop bits */
 	/* For reference buf[4]=1 is 1.5 stop bits */
···
 	dev_dbg(&port->dev, "0xa1:0x21:0:0  %d - %7ph\n", i, buf);
 
 	if (C_CRTSCTS(tty)) {
-		if (spriv->type == type_0 || spriv->type == type_1)
-			pl2303_vendor_write(0x0, 0x41, serial);
-		else
+		if (spriv->type == HX)
 			pl2303_vendor_write(0x0, 0x61, serial);
+		else
+			pl2303_vendor_write(0x0, 0x41, serial);
 	} else {
 		pl2303_vendor_write(0x0, 0x0, serial);
 	}
···
 	struct pl2303_serial_private *spriv = usb_get_serial_data(serial);
 	int result;
 
-	if (spriv->type == type_0 || spriv->type == type_1) {
+	if (spriv->type != HX) {
 		usb_clear_halt(serial->dev, port->write_urb->pipe);
 		usb_clear_halt(serial->dev, port->read_urb->pipe);
 	} else {
···
 	result = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
 				 BREAK_REQUEST, BREAK_REQUEST_TYPE, state,
 				 0, NULL, 0, 100);
-	/* NOTE: HX clones don't support sending breaks, -EPIPE is returned */
 	if (result)
 		dev_err(&port->dev, "error sending break = %d\n", result);
 }

drivers/video/au1100fb.c

···
 int au1100fb_fb_mmap(struct fb_info *fbi, struct vm_area_struct *vma)
 {
 	struct au1100fb_device *fbdev;
-	unsigned int len;
-	unsigned long start=0, off;
 
 	fbdev = to_au1100fb_device(fbi);
-
-	if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT)) {
-		return -EINVAL;
-	}
-
-	start = fbdev->fb_phys & PAGE_MASK;
-	len = PAGE_ALIGN((start & ~PAGE_MASK) + fbdev->fb_len);
-
-	off = vma->vm_pgoff << PAGE_SHIFT;
-
-	if ((vma->vm_end - vma->vm_start + off) > len) {
-		return -EINVAL;
-	}
-
-	off += start;
-	vma->vm_pgoff = off >> PAGE_SHIFT;
 
 	vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
 	pgprot_val(vma->vm_page_prot) |= (6 << 9); //CCA=6
 
-	if (io_remap_pfn_range(vma, vma->vm_start, off >> PAGE_SHIFT,
-				vma->vm_end - vma->vm_start,
-				vma->vm_page_prot)) {
-		return -EAGAIN;
-	}
-
-	return 0;
+	return vm_iomap_memory(vma, fbdev->fb_phys, fbdev->fb_len);
 }
 
 static struct fb_ops au1100fb_ops =

drivers/video/au1200fb.c

···
  * method mainly to allow the use of the TLB streaming flag (CCA=6)
  */
 static int au1200fb_fb_mmap(struct fb_info *info, struct vm_area_struct *vma)
-
 {
-	unsigned int len;
-	unsigned long start=0, off;
 	struct au1200fb_device *fbdev = info->par;
-
-	if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT)) {
-		return -EINVAL;
-	}
-
-	start = fbdev->fb_phys & PAGE_MASK;
-	len = PAGE_ALIGN((start & ~PAGE_MASK) + fbdev->fb_len);
-
-	off = vma->vm_pgoff << PAGE_SHIFT;
-
-	if ((vma->vm_end - vma->vm_start + off) > len) {
-		return -EINVAL;
-	}
-
-	off += start;
-	vma->vm_pgoff = off >> PAGE_SHIFT;
 
 	vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
 	pgprot_val(vma->vm_page_prot) |= _CACHE_MASK; /* CCA=7 */
 
-	return io_remap_pfn_range(vma, vma->vm_start, off >> PAGE_SHIFT,
-				  vma->vm_end - vma->vm_start,
-				  vma->vm_page_prot);
+	return vm_iomap_memory(vma, fbdev->fb_phys, fbdev->fb_len);
 }
 
 static void set_global(u_int cmd, struct au1200_lcd_global_regs_t *pdata)

fs/dcache.c

···
  * If ref is non-zero, then decrement the refcount too.
  * Returns dentry requiring refcount drop, or NULL if we're done.
  */
-static inline struct dentry *
+static struct dentry *
 dentry_kill(struct dentry *dentry, int unlock_on_failure)
 	__releases(dentry->d_lock)
 {
···
 			goto kill_it;
 	}
 
-	dentry->d_flags |= DCACHE_REFERENCED;
+	if (!(dentry->d_flags & DCACHE_REFERENCED))
+		dentry->d_flags |= DCACHE_REFERENCED;
 	dentry_lru_add(dentry);
 
 	dentry->d_lockref.count--;

fs/eventpoll.c

···
 #include <linux/mutex.h>
 #include <linux/anon_inodes.h>
 #include <linux/device.h>
-#include <linux/freezer.h>
 #include <asm/uaccess.h>
 #include <asm/io.h>
 #include <asm/mman.h>
···
 			}
 
 			spin_unlock_irqrestore(&ep->lock, flags);
-			if (!freezable_schedule_hrtimeout_range(to, slack,
-								HRTIMER_MODE_ABS))
+			if (!schedule_hrtimeout_range(to, slack, HRTIMER_MODE_ABS))
 				timed_out = 1;
 
 			spin_lock_irqsave(&ep->lock, flags);

fs/select.c

···
 
 	set_current_state(state);
 	if (!pwq->triggered)
-		rc = freezable_schedule_hrtimeout_range(expires, slack,
-							HRTIMER_MODE_ABS);
+		rc = schedule_hrtimeout_range(expires, slack, HRTIMER_MODE_ABS);
 	__set_current_state(TASK_RUNNING);
 
 	/*

include/linux/ipc_namespace.h

···
 	int		sem_ctls[4];
 	int		used_sems;
 
-	int		msg_ctlmax;
-	int		msg_ctlmnb;
-	int		msg_ctlmni;
+	unsigned int	msg_ctlmax;
+	unsigned int	msg_ctlmnb;
+	unsigned int	msg_ctlmni;
 	atomic_t	msg_bytes;
 	atomic_t	msg_hdrs;
 	int		auto_msgmni;

include/linux/percpu.h

···
 #endif
 
 #ifndef this_cpu_sub
-# define this_cpu_sub(pcp, val)		this_cpu_add((pcp), -(val))
+# define this_cpu_sub(pcp, val)		this_cpu_add((pcp), -(typeof(pcp))(val))
 #endif
 
 #ifndef this_cpu_inc
···
 # define this_cpu_add_return(pcp, val)	__pcpu_size_call_return2(this_cpu_add_return_, pcp, val)
 #endif
 
-#define this_cpu_sub_return(pcp, val)	this_cpu_add_return(pcp, -(val))
+#define this_cpu_sub_return(pcp, val)	this_cpu_add_return(pcp, -(typeof(pcp))(val))
 #define this_cpu_inc_return(pcp)	this_cpu_add_return(pcp, 1)
 #define this_cpu_dec_return(pcp)	this_cpu_add_return(pcp, -1)
 
···
 #endif
 
 #ifndef __this_cpu_sub
-# define __this_cpu_sub(pcp, val)	__this_cpu_add((pcp), -(val))
+# define __this_cpu_sub(pcp, val)	__this_cpu_add((pcp), -(typeof(pcp))(val))
 #endif
 
 #ifndef __this_cpu_inc
···
 	__pcpu_size_call_return2(__this_cpu_add_return_, pcp, val)
 #endif
 
-#define __this_cpu_sub_return(pcp, val)	__this_cpu_add_return(pcp, -(val))
+#define __this_cpu_sub_return(pcp, val)	__this_cpu_add_return(pcp, -(typeof(pcp))(val))
 #define __this_cpu_inc_return(pcp)	__this_cpu_add_return(pcp, 1)
 #define __this_cpu_dec_return(pcp)	__this_cpu_add_return(pcp, -1)
 

include/uapi/linux/perf_event.h

···
 	/*
 	 * Control data for the mmap() data buffer.
 	 *
-	 * User-space reading the @data_head value should issue an rmb(), on
-	 * SMP capable platforms, after reading this value -- see
-	 * perf_event_wakeup().
+	 * User-space reading the @data_head value should issue an smp_rmb(),
+	 * after reading this value.
 	 *
 	 * When the mapping is PROT_WRITE the @data_tail value should be
-	 * written by userspace to reflect the last read data. In this case
-	 * the kernel will not over-write unread data.
+	 * written by userspace to reflect the last read data, after issueing
+	 * an smp_mb() to separate the data read from the ->data_tail store.
+	 * In this case the kernel will not over-write unread data.
+	 *
+	 * See perf_output_put_handle() for the data ordering.
 	 */
 	__u64   data_head;		/* head in the data section */
 	__u64	data_tail;		/* user-space written tail */

ipc/ipc_sysctl.c

···
 	return err;
 }
 
-static int proc_ipc_callback_dointvec(ctl_table *table, int write,
+static int proc_ipc_callback_dointvec_minmax(ctl_table *table, int write,
 	void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	struct ctl_table ipc_table;
···
 	memcpy(&ipc_table, table, sizeof(ipc_table));
 	ipc_table.data = get_ipc(table);
 
-	rc = proc_dointvec(&ipc_table, write, buffer, lenp, ppos);
+	rc = proc_dointvec_minmax(&ipc_table, write, buffer, lenp, ppos);
 
 	if (write && !rc && lenp_bef == *lenp)
 		/*
···
 #define proc_ipc_dointvec	   NULL
 #define proc_ipc_dointvec_minmax   NULL
 #define proc_ipc_dointvec_minmax_orphans   NULL
-#define proc_ipc_callback_dointvec NULL
+#define proc_ipc_callback_dointvec_minmax  NULL
 #define proc_ipcauto_dointvec_minmax NULL
 #endif
 
 static int zero;
 static int one = 1;
-#ifdef CONFIG_CHECKPOINT_RESTORE
 static int int_max = INT_MAX;
-#endif
 
 static struct ctl_table ipc_kern_table[] = {
 	{
···
 		.data		= &init_ipc_ns.msg_ctlmax,
 		.maxlen		= sizeof (init_ipc_ns.msg_ctlmax),
 		.mode		= 0644,
-		.proc_handler	= proc_ipc_dointvec,
+		.proc_handler	= proc_ipc_dointvec_minmax,
+		.extra1		= &zero,
+		.extra2		= &int_max,
 	},
 	{
 		.procname	= "msgmni",
 		.data		= &init_ipc_ns.msg_ctlmni,
 		.maxlen		= sizeof (init_ipc_ns.msg_ctlmni),
 		.mode		= 0644,
-		.proc_handler	= proc_ipc_callback_dointvec,
+		.proc_handler	= proc_ipc_callback_dointvec_minmax,
+		.extra1		= &zero,
+		.extra2		= &int_max,
 	},
 	{
 		.procname	=  "msgmnb",
 		.data		= &init_ipc_ns.msg_ctlmnb,
 		.maxlen		= sizeof (init_ipc_ns.msg_ctlmnb),
 		.mode		= 0644,
-		.proc_handler	= proc_ipc_dointvec,
+		.proc_handler	= proc_ipc_dointvec_minmax,
+		.extra1		= &zero,
+		.extra2		= &int_max,
 	},
 	{
 		.procname	= "sem",

kernel/events/ring_buffer.c

···
 		goto out;
 
 	/*
-	 * Publish the known good head. Rely on the full barrier implied
-	 * by atomic_dec_and_test() order the rb->head read and this
-	 * write.
+	 * Since the mmap() consumer (userspace) can run on a different CPU:
+	 *
+	 *   kernel				user
+	 *
+	 *   READ ->data_tail			READ ->data_head
+	 *   smp_mb()	(A)			smp_rmb()	(C)
+	 *   WRITE $data			READ $data
+	 *   smp_wmb()	(B)			smp_mb()	(D)
+	 *   STORE ->data_head			WRITE ->data_tail
+	 *
+	 * Where A pairs with D, and B pairs with C.
+	 *
+	 * I don't think A needs to be a full barrier because we won't in fact
+	 * write data until we see the store from userspace. So we simply don't
+	 * issue the data WRITE until we observe it. Be conservative for now.
+	 *
+	 * OTOH, D needs to be a full barrier since it separates the data READ
+	 * from the tail WRITE.
+	 *
+	 * For B a WMB is sufficient since it separates two WRITEs, and for C
+	 * an RMB is sufficient since it separates two READs.
+	 *
+	 * See perf_output_begin().
 	 */
+	smp_wmb();
 	rb->user_page->data_head = head;
 
 	/*
···
 		 * Userspace could choose to issue a mb() before updating the
 		 * tail pointer. So that all reads will be completed before the
 		 * write is issued.
+		 *
+		 * See perf_output_put_handle().
 		 */
 		tail = ACCESS_ONCE(rb->user_page->data_tail);
-		smp_rmb();
+		smp_mb();
 		offset = head = local_read(&rb->head);
 		head += size;
 		if (unlikely(!perf_output_space(rb, tail, offset, head)))

lib/Kconfig.debug

···
 
 config DEBUG_KOBJECT_RELEASE
 	bool "kobject release debugging"
-	depends on DEBUG_KERNEL
+	depends on DEBUG_OBJECTS_TIMERS
 	help
 	  kobjects are reference counted objects.  This means that their
 	  last reference count put is not predictable, and the kobject can

lib/scatterlist.c

···
 		miter->__offset += miter->consumed;
 		miter->__remaining -= miter->consumed;
 
-		if (miter->__flags & SG_MITER_TO_SG)
+		if ((miter->__flags & SG_MITER_TO_SG) &&
+		    !PageSlab(miter->page))
 			flush_kernel_dcache_page(miter->page);
 
 		if (miter->__flags & SG_MITER_ATOMIC) {

mm/huge_memory.c

···
 int do_huge_pmd_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 				unsigned long addr, pmd_t pmd, pmd_t *pmdp)
 {
+	struct anon_vma *anon_vma = NULL;
 	struct page *page;
 	unsigned long haddr = addr & HPAGE_PMD_MASK;
+	int page_nid = -1, this_nid = numa_node_id();
 	int target_nid;
-	int current_nid = -1;
-	bool migrated;
+	bool page_locked;
+	bool migrated = false;
 
 	spin_lock(&mm->page_table_lock);
 	if (unlikely(!pmd_same(pmd, *pmdp)))
 		goto out_unlock;
 
 	page = pmd_page(pmd);
-	get_page(page);
-	current_nid = page_to_nid(page);
+	page_nid = page_to_nid(page);
 	count_vm_numa_event(NUMA_HINT_FAULTS);
-	if (current_nid == numa_node_id())
+	if (page_nid == this_nid)
 		count_vm_numa_event(NUMA_HINT_FAULTS_LOCAL);
 
+	/*
+	 * Acquire the page lock to serialise THP migrations but avoid dropping
+	 * page_table_lock if at all possible
+	 */
+	page_locked = trylock_page(page);
 	target_nid = mpol_misplaced(page, vma, haddr);
 	if (target_nid == -1) {
-		put_page(page);
-		goto clear_pmdnuma;
+		/* If the page was locked, there are no parallel migrations */
+		if (page_locked)
+			goto clear_pmdnuma;
+
+		/*
+		 * Otherwise wait for potential migrations and retry. We do
+		 * relock and check_same as the page may no longer be mapped.
+		 * As the fault is being retried, do not account for it.
+		 */
+		spin_unlock(&mm->page_table_lock);
+		wait_on_page_locked(page);
+		page_nid = -1;
+		goto out;
 	}
 
-	/* Acquire the page lock to serialise THP migrations */
+	/* Page is misplaced, serialise migrations and parallel THP splits */
+	get_page(page);
 	spin_unlock(&mm->page_table_lock);
-	lock_page(page);
+	if (!page_locked)
+		lock_page(page);
+	anon_vma = page_lock_anon_vma_read(page);
 
 	/* Confirm the PTE did not while locked */
 	spin_lock(&mm->page_table_lock);
 	if (unlikely(!pmd_same(pmd, *pmdp))) {
 		unlock_page(page);
 		put_page(page);
+		page_nid = -1;
 		goto out_unlock;
 	}
-	spin_unlock(&mm->page_table_lock);
 
-	/* Migrate the THP to the requested node */
+	/*
+	 * Migrate the THP to the requested node, returns with page unlocked
+	 * and pmd_numa cleared.
+	 */
+	spin_unlock(&mm->page_table_lock);
 	migrated = migrate_misplaced_transhuge_page(mm, vma,
 				pmdp, pmd, addr, page, target_nid);
-	if (!migrated)
-		goto check_same;
+	if (migrated)
+		page_nid = target_nid;
 
-	task_numa_fault(target_nid, HPAGE_PMD_NR, true);
-	return 0;
-
-check_same:
-	spin_lock(&mm->page_table_lock);
-	if (unlikely(!pmd_same(pmd, *pmdp)))
-		goto out_unlock;
+	goto out;
 clear_pmdnuma:
+	BUG_ON(!PageLocked(page));
 	pmd = pmd_mknonnuma(pmd);
 	set_pmd_at(mm, haddr, pmdp, pmd);
 	VM_BUG_ON(pmd_numa(*pmdp));
 	update_mmu_cache_pmd(vma, addr, pmdp);
+	unlock_page(page);
 out_unlock:
 	spin_unlock(&mm->page_table_lock);
-	if (current_nid != -1)
-		task_numa_fault(current_nid, HPAGE_PMD_NR, false);
+
+out:
+	if (anon_vma)
+		page_unlock_anon_vma_read(anon_vma);
+
+	if (page_nid != -1)
+		task_numa_fault(page_nid, HPAGE_PMD_NR, migrated);
+
 	return 0;
 }
 

mm/list_lru.c

···
 		 * decrement nr_to_walk first so that we don't livelock if we
 		 * get stuck on large numbesr of LRU_RETRY items
 		 */
-		if (--(*nr_to_walk) == 0)
+		if (!*nr_to_walk)
 			break;
+		--*nr_to_walk;
 
 		ret = isolate(item, &nlru->lock, cb_arg);
 		switch (ret) {

mm/memcontrol.c

···
 #include <linux/page_cgroup.h>
 #include <linux/cpu.h>
 #include <linux/oom.h>
+#include <linux/lockdep.h>
 #include "internal.h"
 #include <net/sock.h>
 #include <net/ip.h>
···
 	return total;
 }
 
+#ifdef CONFIG_LOCKDEP
+static struct lockdep_map memcg_oom_lock_dep_map = {
+	.name = "memcg_oom_lock",
+};
+#endif
+
 static DEFINE_SPINLOCK(memcg_oom_lock);
 
 /*
···
 			}
 			iter->oom_lock = false;
 		}
-	}
+	} else
+		mutex_acquire(&memcg_oom_lock_dep_map, 0, 1, _RET_IP_);
 
 	spin_unlock(&memcg_oom_lock);
 
···
 	struct mem_cgroup *iter;
 
 	spin_lock(&memcg_oom_lock);
+	mutex_release(&memcg_oom_lock_dep_map, 1, _RET_IP_);
 	for_each_mem_cgroup_tree(iter, memcg)
 		iter->oom_lock = false;
 	spin_unlock(&memcg_oom_lock);
···
 	*ptr = memcg;
 	return 0;
 nomem:
-	*ptr = NULL;
-	if (gfp_mask & __GFP_NOFAIL)
-		return 0;
-	return -ENOMEM;
+	if (!(gfp_mask & __GFP_NOFAIL)) {
+		*ptr = NULL;
+		return -ENOMEM;
+	}
 bypass:
 	*ptr = root_mem_cgroup;
 	return -EINTR;
···
 {
 	/* Update stat data for mem_cgroup */
 	preempt_disable();
-	WARN_ON_ONCE(from->stat->count[idx] < nr_pages);
-	__this_cpu_add(from->stat->count[idx], -nr_pages);
+	__this_cpu_sub(from->stat->count[idx], nr_pages);
 	__this_cpu_add(to->stat->count[idx], nr_pages);
 	preempt_enable();
 }
···
 	} while (usage > 0);
 }
 
-/*
- * This mainly exists for tests during the setting of set of use_hierarchy.
- * Since this is the very setting we are changing, the current hierarchy value
- * is meaningless
- */
-static inline bool __memcg_has_children(struct mem_cgroup *memcg)
-{
-	struct cgroup_subsys_state *pos;
-
-	/* bounce at first found */
-	css_for_each_child(pos, &memcg->css)
-		return true;
-	return false;
-}
-
-/*
- * Must be called with memcg_create_mutex held, unless the cgroup is guaranteed
- * to be already dead (as in mem_cgroup_force_empty, for instance).  This is
- * from mem_cgroup_count_children(), in the sense that we don't really care how
- * many children we have; we only need to know if we have any.  It also counts
- * any memcg without hierarchy as infertile.
- */
 static inline bool memcg_has_children(struct mem_cgroup *memcg)
 {
-	return memcg->use_hierarchy && __memcg_has_children(memcg);
+	lockdep_assert_held(&memcg_create_mutex);
+	/*
+	 * The lock does not prevent addition or deletion to the list
+	 * of children, but it prevents a new child from being
+	 * initialized based on this parent in css_online(), so it's
+	 * enough to decide whether hierarchically inherited
+	 * attributes can still be changed or not.
+	 */
+	return memcg->use_hierarchy &&
+		!list_empty(&memcg->css.cgroup->children);
 }
 
 /*
···
 	 */
 	if ((!parent_memcg || !parent_memcg->use_hierarchy) &&
 				(val == 1 || val == 0)) {
-		if (!__memcg_has_children(memcg))
+		if (list_empty(&memcg->css.cgroup->children))
 			memcg->use_hierarchy = val;
 		else
 			retval = -EBUSY;

mm/memory.c

···
 }
 
 int numa_migrate_prep(struct page *page, struct vm_area_struct *vma,
-				unsigned long addr, int current_nid)
+				unsigned long addr, int page_nid)
 {
 	get_page(page);
 
 	count_vm_numa_event(NUMA_HINT_FAULTS);
-	if (current_nid == numa_node_id())
+	if (page_nid == numa_node_id())
 		count_vm_numa_event(NUMA_HINT_FAULTS_LOCAL);
 
 	return mpol_misplaced(page, vma, addr);
···
 {
 	struct page *page = NULL;
 	spinlock_t *ptl;
-	int current_nid = -1;
+	int page_nid = -1;
 	int target_nid;
 	bool migrated = false;
 
···
 		return 0;
 	}
 
-	current_nid = page_to_nid(page);
-	target_nid = numa_migrate_prep(page, vma, addr, current_nid);
+	page_nid = page_to_nid(page);
+	target_nid = numa_migrate_prep(page, vma, addr, page_nid);
 	pte_unmap_unlock(ptep, ptl);
 	if (target_nid == -1) {
-		/*
-		 * Account for the fault against the current node if it not
-		 * being replaced regardless of where the page is located.
-		 */
-		current_nid = numa_node_id();
 		put_page(page);
 		goto out;
 	}
···
 	/* Migrate to the requested node */
 	migrated = migrate_misplaced_page(page, target_nid);
 	if (migrated)
-		current_nid = target_nid;
+		page_nid = target_nid;
 
 out:
-	if (current_nid != -1)
-		task_numa_fault(current_nid, 1, migrated);
+	if (page_nid != -1)
+		task_numa_fault(page_nid, 1, migrated);
 	return 0;
 }
 
···
 	unsigned long offset;
 	spinlock_t *ptl;
 	bool numa = false;
-	int local_nid = numa_node_id();
 
 	spin_lock(&mm->page_table_lock);
 	pmd = *pmdp;
···
 	for (addr = _addr + offset; addr < _addr + PMD_SIZE; pte++, addr += PAGE_SIZE) {
 		pte_t pteval = *pte;
 		struct page *page;
-		int curr_nid = local_nid;
+		int page_nid = -1;
 		int target_nid;
-		bool migrated;
+		bool migrated = false;
+
 		if (!pte_present(pteval))
 			continue;
 		if (!pte_numa(pteval))
···
 		if (unlikely(page_mapcount(page) != 1))
 			continue;
 
-		/*
-		 * Note that the NUMA fault is later accounted to either
-		 * the node that is currently running or where the page is
-		 * migrated to.
-		 */
-		curr_nid = local_nid;
-		target_nid = numa_migrate_prep(page, vma, addr,
-					       page_to_nid(page));
-		if (target_nid == -1) {
+		page_nid = page_to_nid(page);
+		target_nid = numa_migrate_prep(page, vma, addr, page_nid);
+		pte_unmap_unlock(pte, ptl);
+		if (target_nid != -1) {
+			migrated = migrate_misplaced_page(page, target_nid);
+			if (migrated)
+				page_nid = target_nid;
+		} else {
 			put_page(page);
-			continue;
 		}
 
-		/* Migrate to the requested node */
-		pte_unmap_unlock(pte, ptl);
-		migrated = migrate_misplaced_page(page, target_nid);
-		if (migrated)
-			curr_nid = target_nid;
-		task_numa_fault(curr_nid, 1, migrated);
+		if (page_nid != -1)
+			task_numa_fault(page_nid, 1, migrated);
 
 		pte = pte_offset_map_lock(mm, pmdp, addr, &ptl);
 	}

mm/migrate.c

···
 		unlock_page(new_page);
 		put_page(new_page);		/* Free it */
 
-		unlock_page(page);
+		/* Retake the callers reference and putback on LRU */
+		get_page(page);
 		putback_lru_page(page);
-
-		count_vm_events(PGMIGRATE_FAIL, HPAGE_PMD_NR);
-		isolated = 0;
-		goto out;
+		mod_zone_page_state(page_zone(page),
+			 NR_ISOLATED_ANON + page_lru, -HPAGE_PMD_NR);
+		goto out_fail;
 	}
 
 	/*
···
 	entry = maybe_pmd_mkwrite(pmd_mkdirty(entry), vma);
 	entry = pmd_mkhuge(entry);
 
-	page_add_new_anon_rmap(new_page, vma, haddr);
-
+	pmdp_clear_flush(vma, haddr, pmd);
 	set_pmd_at(mm, haddr, pmd, entry);
+	page_add_new_anon_rmap(new_page, vma, haddr);
 	update_mmu_cache_pmd(vma, address, &entry);
 	page_remove_rmap(page);
 	/*
···
 	count_vm_events(PGMIGRATE_SUCCESS, HPAGE_PMD_NR);
 	count_vm_numa_events(NUMA_PAGE_MIGRATE, HPAGE_PMD_NR);
 
-out:
 	mod_zone_page_state(page_zone(page),
 			NR_ISOLATED_ANON + page_lru,
 			-HPAGE_PMD_NR);
···
 out_fail:
 	count_vm_events(PGMIGRATE_FAIL, HPAGE_PMD_NR);
 out_dropref:
+	entry = pmd_mknonnuma(entry);
+	set_pmd_at(mm, haddr, pmd, entry);
+	update_mmu_cache_pmd(vma, address, &entry);
+
 	unlock_page(page);
 	put_page(page);
 	return 0;

mm/mprotect.c

···
 				split_huge_page_pmd(vma, addr, pmd);
 			else if (change_huge_pmd(vma, pmd, addr, newprot,
 						 prot_numa)) {
-				pages += HPAGE_PMD_NR;
+				pages++;
 				continue;
 			}
 			/* fall through */

mm/pagewalk.c

···
 		if (err)
 			break;
 		pgd++;
-	} while (addr = next, addr != end);
+	} while (addr = next, addr < end);
 
 	return err;
 }

scripts/kallsyms.c

···
 static unsigned int table_size, table_cnt;
 static int all_symbols = 0;
 static char symbol_prefix_char = '\0';
+static unsigned long long kernel_start_addr = 0;
 
 int token_profit[0x10000];
 
···
 
 static void usage(void)
 {
-	fprintf(stderr, "Usage: kallsyms [--all-symbols] [--symbol-prefix=<prefix char>] < in.map > out.S\n");
+	fprintf(stderr, "Usage: kallsyms [--all-symbols] "
+			"[--symbol-prefix=<prefix char>] "
+			"[--page-offset=<CONFIG_PAGE_OFFSET>] "
+			"< in.map > out.S\n");
 	exit(1);
 }
 
···
 		NULL };
 	int i;
 	int offset = 1;
+
+	if (s->addr < kernel_start_addr)
+		return 0;
 
 	/* skip prefix char */
 	if (symbol_prefix_char && *(s->sym + 1) == symbol_prefix_char)
···
 				if ((*p == '"' && *(p+2) == '"') || (*p == '\'' && *(p+2) == '\''))
 					p++;
 				symbol_prefix_char = *p;
+			} else if (strncmp(argv[i], "--page-offset=", 14) == 0) {
+				const char *p = &argv[i][14];
+				kernel_start_addr = strtoull(p, NULL, 16);
 			} else
 				usage();
 		}

scripts/link-vmlinux.sh

···
 		kallsymopt="${kallsymopt} --all-symbols"
 	fi
 
+	kallsymopt="${kallsymopt} --page-offset=$CONFIG_PAGE_OFFSET"
+
 	local aflags="${KBUILD_AFLAGS} ${KBUILD_AFLAGS_KERNEL}               \
 		      ${NOSTDINC_FLAGS} ${LINUXINCLUDE} ${KBUILD_CPPFLAGS}"
 

sound/core/pcm.c

···
 	struct snd_pcm *pcm;
 
 	list_for_each_entry(pcm, &snd_pcm_devices, list) {
+		if (pcm->internal)
+			continue;
 		if (pcm->card == card && pcm->device == device)
 			return pcm;
 	}
···
 	struct snd_pcm *pcm;
 
 	list_for_each_entry(pcm, &snd_pcm_devices, list) {
+		if (pcm->internal)
+			continue;
 		if (pcm->card == card && pcm->device > device)
 			return pcm->device;
 		else if (pcm->card->number > card->number)

sound/pci/hda/hda_codec.c

···
 	spin_unlock(&codec->power_lock);
 
 	state = hda_call_codec_suspend(codec, true);
-	codec->pm_down_notified = 0;
-	if (!bus->power_keep_link_on && (state & AC_PWRST_CLK_STOP_OK)) {
+	if (!codec->pm_down_notified &&
+	    !bus->power_keep_link_on && (state & AC_PWRST_CLK_STOP_OK)) {
 		codec->pm_down_notified = 1;
 		hda_call_pm_notify(bus, false);
 	}

sound/pci/hda/hda_generic.c

···
 					    true, &spec->vmaster_mute.sw_kctl);
 		if (err < 0)
 			return err;
-		if (spec->vmaster_mute.hook)
+		if (spec->vmaster_mute.hook) {
 			snd_hda_add_vmaster_hook(codec, &spec->vmaster_mute,
 						 spec->vmaster_mute_enum);
+			snd_hda_sync_vmaster_hook(&spec->vmaster_mute);
+		}
 	}
 
 	free_kctls(spec); /* no longer needed */

sound/pci/hda/patch_analog.c

···
 	}
 }
 
+static void ad1884_fixup_thinkpad(struct hda_codec *codec,
+				  const struct hda_fixup *fix, int action)
+{
+	struct ad198x_spec *spec = codec->spec;
+
+	if (action == HDA_FIXUP_ACT_PRE_PROBE)
+		spec->gen.keep_eapd_on = 1;
+}
+
 /* set magic COEFs for dmic */
 static const struct hda_verb ad1884_dmic_init_verbs[] = {
 	{0x01, AC_VERB_SET_COEF_INDEX, 0x13f7},
···
 	AD1884_FIXUP_AMP_OVERRIDE,
 	AD1884_FIXUP_HP_EAPD,
 	AD1884_FIXUP_DMIC_COEF,
+	AD1884_FIXUP_THINKPAD,
 	AD1884_FIXUP_HP_TOUCHSMART,
 };
 
···
 		.type = HDA_FIXUP_VERBS,
 		.v.verbs = ad1884_dmic_init_verbs,
 	},
+	[AD1884_FIXUP_THINKPAD] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = ad1884_fixup_thinkpad,
+		.chained = true,
+		.chain_id = AD1884_FIXUP_DMIC_COEF,
+	},
 	[AD1884_FIXUP_HP_TOUCHSMART] = {
 		.type = HDA_FIXUP_VERBS,
 		.v.verbs = ad1884_dmic_init_verbs,
···
 static const struct snd_pci_quirk ad1884_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x103c, 0x2a82, "HP Touchsmart", AD1884_FIXUP_HP_TOUCHSMART),
 	SND_PCI_QUIRK_VENDOR(0x103c, "HP", AD1884_FIXUP_HP_EAPD),
-	SND_PCI_QUIRK_VENDOR(0x17aa, "Lenovo Thinkpad", AD1884_FIXUP_DMIC_COEF),
+	SND_PCI_QUIRK_VENDOR(0x17aa, "Lenovo Thinkpad", AD1884_FIXUP_THINKPAD),
 	{}
 };
 

sound/pci/hda/patch_realtek.c

···
 	SND_PCI_QUIRK(0x1028, 0x05db, "Dell", ALC668_FIXUP_DELL_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x103c, 0x1632, "HP RP5800", ALC662_FIXUP_HP_RP5800),
 	SND_PCI_QUIRK(0x1043, 0x1477, "ASUS N56VZ", ALC662_FIXUP_ASUS_MODE4),
+	SND_PCI_QUIRK(0x1043, 0x1bf3, "ASUS N76VZ", ALC662_FIXUP_ASUS_MODE4),
 	SND_PCI_QUIRK(0x1043, 0x8469, "ASUS mobo", ALC662_FIXUP_NO_JACK_DETECT),
 	SND_PCI_QUIRK(0x105b, 0x0cd6, "Foxconn", ALC662_FIXUP_ASUS_MODE2),
 	SND_PCI_QUIRK(0x144d, 0xc051, "Samsung R720", ALC662_FIXUP_IDEAPAD),

sound/soc/codecs/wm_hubs.c

···
 				hubs->hp_startup_mode);
 			break;
 		}
+		break;
 
 	case SND_SOC_DAPM_PRE_PMD:
 		snd_soc_update_bits(codec, WM8993_CHARGE_PUMP_1,

sound/soc/soc-dapm.c

···
 				w->active ? "active" : "inactive");
 
 	list_for_each_entry(p, &w->sources, list_sink) {
-		if (p->connected && !p->connected(w, p->sink))
+		if (p->connected && !p->connected(w, p->source))
 			continue;
 
 		if (p->connect)
···
 		if (!w) {
 			dev_err(dapm->dev, "ASoC: Failed to create %s widget\n",
 				dai->driver->playback.stream_name);
+			return -ENOMEM;
 		}
 
 		w->priv = dai;
···
 		if (!w) {
 			dev_err(dapm->dev, "ASoC: Failed to create %s widget\n",
 				dai->driver->capture.stream_name);
+			return -ENOMEM;
 		}
 
 		w->priv = dai;

tools/perf/tests/attr/README

···
   perf record -c 123 kill                       (test-record-count)
   perf record -d kill                           (test-record-data)
   perf record -F 100 kill                       (test-record-freq)
-  perf record -g -- kill                        (test-record-graph-default)
-  perf record -g dwarf -- kill                  (test-record-graph-dwarf)
-  perf record -g fp kill                        (test-record-graph-fp)
+  perf record -g kill                           (test-record-graph-default)
+  perf record --call-graph dwarf kill		(test-record-graph-dwarf)
+  perf record --call-graph fp kill              (test-record-graph-fp)
   perf record --group -e cycles,instructions kill (test-record-group)
   perf record -e '{cycles,instructions}' kill   (test-record-group1)
   perf record -D kill                           (test-record-no-delay)

tools/perf/tests/attr/test-record-graph-default

···
 [config]
 command = record
-args    = -g -- kill >/dev/null 2>&1
+args    = -g kill >/dev/null 2>&1
 
 [event:base-record]
 sample_type=295

tools/perf/tests/attr/test-record-graph-dwarf

···
 [config]
 command = record
-args    = -g dwarf -- kill >/dev/null 2>&1
+args    = --call-graph dwarf -- kill >/dev/null 2>&1
 
 [event:base-record]
 sample_type=12583

tools/perf/tests/attr/test-record-graph-fp

···
 [config]
 command = record
-args    = -g fp kill >/dev/null 2>&1
+args    = --call-graph fp kill >/dev/null 2>&1
 
 [event:base-record]
 sample_type=295

tools/perf/ui/hist.c

···
 			      struct perf_hpp *hpp, struct hist_entry *he) 	\
 {										\
 	return __hpp__fmt(hpp, he, he_get_##_field, " %6.2f%%",			\
-			  (hpp_snprint_fn)percent_color_snprintf, true);	\
+			  percent_color_snprintf, true);			\
 }
 
 #define __HPP_ENTRY_PERCENT_FN(_type, _field)					\

tools/perf/util/color.c

···
 	return r;
 }
 
-int percent_color_snprintf(char *bf, size_t size, const char *fmt, double percent)
+int percent_color_snprintf(char *bf, size_t size, const char *fmt, ...)
 {
-	const char *color = get_percent_color(percent);
+	va_list args;
+	double percent;
+	const char *color;
+
+	va_start(args, fmt);
+	percent = va_arg(args, double);
+	va_end(args);
+	color = get_percent_color(percent);
 	return color_snprintf(bf, size, color, fmt, percent);
 }

tools/perf/util/color.h

···
 int color_snprintf(char *bf, size_t size, const char *color, const char *fmt, ...);
 int color_fprintf_ln(FILE *fp, const char *color, const char *fmt, ...);
 int color_fwrite_lines(FILE *fp, const char *color, size_t count, const char *buf);
-int percent_color_snprintf(char *bf, size_t size, const char *fmt, double percent);
+int percent_color_snprintf(char *bf, size_t size, const char *fmt, ...);
 int percent_color_fprintf(FILE *fp, const char *fmt, double percent);
 const char *get_percent_color(double percent);
 

virt/kvm/kvm_main.c

···
 
 static int kvm_init_debug(void)
 {
-	int r = -EFAULT;
+	int r = -EEXIST;
 	struct kvm_stats_debugfs_item *p;
 
 	kvm_debugfs_dir = debugfs_create_dir("kvm", NULL);