This is the 4.19.113 stable release

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Merge 4.19.113 into android-4.19

Changes in 4.19.113
	drm/mediatek: Find the cursor plane instead of hard coding it
	spi: qup: call spi_qup_pm_resume_runtime before suspending
	powerpc: Include .BTF section
	ARM: dts: dra7: Add "dma-ranges" property to PCIe RC DT nodes
	spi: pxa2xx: Add CS control clock quirk
	spi/zynqmp: remove entry that causes a cs glitch
	drm/exynos: dsi: propagate error value and silence meaningless warning
	drm/exynos: dsi: fix workaround for the legacy clock name
	drivers/perf: arm_pmu_acpi: Fix incorrect checking of gicc pointer
	altera-stapl: altera_get_note: prevent write beyond end of 'key'
	dm bio record: save/restore bi_end_io and bi_integrity
	dm integrity: use dm_bio_record and dm_bio_restore
	riscv: avoid the PIC offset of static percpu data in module beyond 2G limits
	drm/amd/display: Clear link settings on MST disable connector
	drm/amd/display: fix dcc swath size calculations on dcn1
	xenbus: req->body should be updated before req->state
	xenbus: req->err should be updated before req->state
	block, bfq: fix overwrite of bfq_group pointer in bfq_find_set_group()
	parse-maintainers: Mark as executable
	USB: Disable LPM on WD19's Realtek Hub
	usb: quirks: add NO_LPM quirk for RTL8153 based ethernet adapters
	USB: serial: option: add ME910G1 ECM composition 0x110b
	usb: host: xhci-plat: add a shutdown
	USB: serial: pl2303: add device-id for HP LD381
	usb: xhci: apply XHCI_SUSPEND_DELAY to AMD XHCI controller 1022:145c
	ALSA: line6: Fix endless MIDI read loop
	ALSA: seq: virmidi: Fix running status after receiving sysex
	ALSA: seq: oss: Fix running status after receiving sysex
	ALSA: pcm: oss: Avoid plugin buffer overflow
	ALSA: pcm: oss: Remove WARNING from snd_pcm_plug_alloc() checks
	iio: st_sensors: remap SMO8840 to LIS2DH12
	iio: trigger: stm32-timer: disable master mode when stopping
	iio: magnetometer: ak8974: Fix negative raw values in sysfs
	iio: adc: at91-sama5d2_adc: fix differential channels in triggered mode
	mmc: rtsx_pci: Fix support for speed-modes that relies on tuning
	mmc: sdhci-of-at91: fix cd-gpios for SAMA5D2
	staging: rtl8188eu: Add device id for MERCUSYS MW150US v2
	staging: greybus: loopback_test: fix poll-mask build breakage
	staging/speakup: fix get_word non-space look-ahead
	intel_th: Fix user-visible error codes
	intel_th: pci: Add Elkhart Lake CPU support
	rtc: max8907: add missing select REGMAP_IRQ
	xhci: Do not open code __print_symbolic() in xhci trace events
	btrfs: fix log context list corruption after rename whiteout error
	drm/amd/amdgpu: Fix GPR read from debugfs (v2)
	drm/lease: fix WARNING in idr_destroy
	memcg: fix NULL pointer dereference in __mem_cgroup_usage_unregister_event
	mm: slub: be more careful about the double cmpxchg of freelist
	mm, slub: prevent kmalloc_node crashes and memory leaks
	page-flags: fix a crash at SetPageError(THP_SWAP)
	x86/mm: split vmalloc_sync_all()
	USB: cdc-acm: fix close_delay and closing_wait units in TIOCSSERIAL
	USB: cdc-acm: fix rounding error in TIOCSSERIAL
	iio: light: vcnl4000: update sampling periods for vcnl4200
	kbuild: Disable -Wpointer-to-enum-cast
	futex: Fix inode life-time issue
	futex: Unbreak futex hashing
	Revert "vrf: mark skb for multicast or link-local as enslaved to VRF"
	Revert "ipv6: Fix handling of LLA with VRF and sockets bound to VRF"
	ALSA: hda/realtek: Fix pop noise on ALC225
	arm64: smp: fix smp_send_stop() behaviour
	arm64: smp: fix crash_smp_send_stop() behaviour
	drm/bridge: dw-hdmi: fix AVI frame colorimetry
	staging: greybus: loopback_test: fix potential path truncation
	staging: greybus: loopback_test: fix potential path truncations
	Linux 4.19.113

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I90c48cd7189a964e59d199ecc0f32c0a68688ec5

Makefile

@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 4
 PATCHLEVEL = 19
-SUBLEVEL = 112
+SUBLEVEL = 113
 EXTRAVERSION =
 NAME = "People's Front"
 

arch/arm/boot/dts/dra7.dtsi

@@ -324,6 +324,7 @@
 				device_type = "pci";
 				ranges = <0x81000000 0 0          0x03000 0 0x00010000
 					  0x82000000 0 0x20013000 0x13000 0 0xffed000>;
+				dma-ranges = <0x02000000 0x0 0x00000000 0x00000000 0x1 0x00000000>;
 				bus-range = <0x00 0xff>;
 				#interrupt-cells = <1>;
 				num-lanes = <1>;
@@ -376,6 +377,7 @@
 				device_type = "pci";
 				ranges = <0x81000000 0 0          0x03000 0 0x00010000
 					  0x82000000 0 0x30013000 0x13000 0 0xffed000>;
+				dma-ranges = <0x02000000 0x0 0x00000000 0x00000000 0x1 0x00000000>;
 				bus-range = <0x00 0xff>;
 				#interrupt-cells = <1>;
 				num-lanes = <1>;

arch/arm64/kernel/smp.c

@@ -935,11 +935,22 @@ void tick_broadcast(const struct cpumask *mask)
 }
 #endif
 
+/*
+ * The number of CPUs online, not counting this CPU (which may not be
+ * fully online and so not counted in num_online_cpus()).
+ */
+static inline unsigned int num_other_online_cpus(void)
+{
+	unsigned int this_cpu_online = cpu_online(smp_processor_id());
+
+	return num_online_cpus() - this_cpu_online;
+}
+
 void smp_send_stop(void)
 {
 	unsigned long timeout;
 
-	if (num_online_cpus() > 1) {
+	if (num_other_online_cpus()) {
 		cpumask_t mask;
 
 		cpumask_copy(&mask, cpu_online_mask);
@@ -952,10 +963,10 @@ void smp_send_stop(void)
 
 	/* Wait up to one second for other CPUs to stop */
 	timeout = USEC_PER_SEC;
-	while (num_online_cpus() > 1 && timeout--)
+	while (num_other_online_cpus() && timeout--)
 		udelay(1);
 
-	if (num_online_cpus() > 1)
+	if (num_other_online_cpus())
 		pr_warning("SMP: failed to stop secondary CPUs %*pbl\n",
 			   cpumask_pr_args(cpu_online_mask));
 
@@ -978,7 +989,11 @@ void crash_smp_send_stop(void)
 
 	cpus_stopped = 1;
 
-	if (num_online_cpus() == 1) {
+	/*
+	 * If this cpu is the only one alive at this point in time, online or
+	 * not, there are no stop messages to be sent around, so just back out.
+	 */
+	if (num_other_online_cpus() == 0) {
 		sdei_mask_local_cpu();
 		return;
 	}
@@ -986,7 +1001,7 @@ void crash_smp_send_stop(void)
 	cpumask_copy(&mask, cpu_online_mask);
 	cpumask_clear_cpu(smp_processor_id(), &mask);
 
-	atomic_set(&waiting_for_crash_ipi, num_online_cpus() - 1);
+	atomic_set(&waiting_for_crash_ipi, num_other_online_cpus());
 
 	pr_crit("SMP: stopping secondary CPUs\n");
 	smp_cross_call(&mask, IPI_CPU_CRASH_STOP);

arch/powerpc/kernel/vmlinux.lds.S

@@ -322,6 +322,12 @@ SECTIONS
 		*(.branch_lt)
 	}
 
+#ifdef CONFIG_DEBUG_INFO_BTF
+	.BTF : AT(ADDR(.BTF) - LOAD_OFFSET) {
+		*(.BTF)
+	}
+#endif
+
 	.opd : AT(ADDR(.opd) - LOAD_OFFSET) {
 		__start_opd = .;
 		KEEP(*(.opd))

arch/riscv/kernel/module.c

@@ -16,6 +16,10 @@
 #include <linux/err.h>
 #include <linux/errno.h>
 #include <linux/moduleloader.h>
+#include <linux/vmalloc.h>
+#include <linux/sizes.h>
+#include <asm/pgtable.h>
+#include <asm/sections.h>
 
 static int apply_r_riscv_32_rela(struct module *me, u32 *location, Elf_Addr v)
 {
@@ -394,3 +398,15 @@ int apply_relocate_add(Elf_Shdr *sechdrs, const char *strtab,
 
 	return 0;
 }
+
+#if defined(CONFIG_MMU) && defined(CONFIG_64BIT)
+#define VMALLOC_MODULE_START \
+	 max(PFN_ALIGN((unsigned long)&_end - SZ_2G), VMALLOC_START)
+void *module_alloc(unsigned long size)
+{
+	return __vmalloc_node_range(size, 1, VMALLOC_MODULE_START,
+				    VMALLOC_END, GFP_KERNEL,
+				    PAGE_KERNEL_EXEC, 0, NUMA_NO_NODE,
+				    __builtin_return_address(0));
+}
+#endif

arch/x86/mm/fault.c

@@ -273,7 +273,7 @@ static inline pmd_t *vmalloc_sync_one(pgd_t *pgd, unsigned long address)
 	return pmd_k;
 }
 
-void vmalloc_sync_all(void)
+static void vmalloc_sync(void)
 {
 	unsigned long address;
 
@@ -300,6 +300,16 @@ void vmalloc_sync_all(void)
 	}
 }
 
+void vmalloc_sync_mappings(void)
+{
+	vmalloc_sync();
+}
+
+void vmalloc_sync_unmappings(void)
+{
+	vmalloc_sync();
+}
+
 /*
  * 32-bit:
  *
@@ -402,11 +412,23 @@ out:
 
 #else /* CONFIG_X86_64: */
 
-void vmalloc_sync_all(void)
+void vmalloc_sync_mappings(void)
 {
+	/*
+	 * 64-bit mappings might allocate new p4d/pud pages
+	 * that need to be propagated to all tasks' PGDs.
+	 */
 	sync_global_pgds(VMALLOC_START & PGDIR_MASK, VMALLOC_END);
 }
 
+void vmalloc_sync_unmappings(void)
+{
+	/*
+	 * Unmappings never allocate or free p4d/pud pages.
+	 * No work is required here.
+	 */
+}
+
 /*
  * 64-bit:
  *

block/bfq-cgroup.c

@@ -525,12 +525,13 @@ struct bfq_group *bfq_find_set_group(struct bfq_data *bfqd,
 	 */
 	entity = &bfqg->entity;
 	for_each_entity(entity) {
-		bfqg = container_of(entity, struct bfq_group, entity);
+		struct bfq_group *curr_bfqg = container_of(entity,
-		if (bfqg != bfqd->root_group) {
+						struct bfq_group, entity);
-			parent = bfqg_parent(bfqg);
+		if (curr_bfqg != bfqd->root_group) {
+			parent = bfqg_parent(curr_bfqg);
 			if (!parent)
 				parent = bfqd->root_group;
-			bfq_group_set_parent(bfqg, parent);
+			bfq_group_set_parent(curr_bfqg, parent);
 		}
 	}
 

drivers/acpi/apei/ghes.c

@@ -201,7 +201,7 @@ static int ghes_estatus_pool_expand(unsigned long len)
 	 * New allocation must be visible in all pgd before it can be found by
 	 * an NMI allocating from the pool.
 	 */
-	vmalloc_sync_all();
+	vmalloc_sync_mappings();
 
 	return gen_pool_add(ghes_estatus_pool, addr, PAGE_ALIGN(len), -1);
 }

drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c

@@ -694,11 +694,11 @@ static ssize_t amdgpu_debugfs_gpr_read(struct file *f, char __user *buf,
 	ssize_t result = 0;
 	uint32_t offset, se, sh, cu, wave, simd, thread, bank, *data;
 
-	if (size & 3 || *pos & 3)
+	if (size > 4096 || size & 3 || *pos & 3)
 		return -EINVAL;
 
 	/* decode offset */
-	offset = *pos & GENMASK_ULL(11, 0);
+	offset = (*pos & GENMASK_ULL(11, 0)) >> 2;
 	se = (*pos & GENMASK_ULL(19, 12)) >> 12;
 	sh = (*pos & GENMASK_ULL(27, 20)) >> 20;
 	cu = (*pos & GENMASK_ULL(35, 28)) >> 28;
@@ -729,7 +729,7 @@ static ssize_t amdgpu_debugfs_gpr_read(struct file *f, char __user *buf,
 	while (size) {
 		uint32_t value;
 
-		value = data[offset++];
+		value = data[result >> 2];
 		r = put_user(value, (uint32_t *)buf);
 		if (r) {
 			result = r;

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c

@@ -419,6 +419,7 @@ static void dm_dp_destroy_mst_connector(struct drm_dp_mst_topology_mgr *mgr,
 		dc_link_remove_remote_sink(aconnector->dc_link, aconnector->dc_sink);
 		dc_sink_release(aconnector->dc_sink);
 		aconnector->dc_sink = NULL;
+		aconnector->dc_link->cur_link_settings.lane_count = 0;
 	}
 
 	drm_connector_unregister(connector);

drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubbub.c

@@ -684,8 +684,8 @@ static void hubbub1_det_request_size(
 
 	hubbub1_get_blk256_size(&blk256_width, &blk256_height, bpe);
 
-	swath_bytes_horz_wc = height * blk256_height * bpe;
+	swath_bytes_horz_wc = width * blk256_height * bpe;
-	swath_bytes_vert_wc = width * blk256_width * bpe;
+	swath_bytes_vert_wc = height * blk256_width * bpe;
 
 	*req128_horz_wc = (2 * swath_bytes_horz_wc <= detile_buf_size) ?
 			false : /* full 256B request */

drivers/gpu/drm/bridge/synopsys/dw-hdmi.c

@@ -1364,28 +1364,34 @@ static void hdmi_config_AVI(struct dw_hdmi *hdmi, struct drm_display_mode *mode)
 		frame.colorspace = HDMI_COLORSPACE_RGB;
 
 	/* Set up colorimetry */
-	switch (hdmi->hdmi_data.enc_out_encoding) {
+	if (!hdmi_bus_fmt_is_rgb(hdmi->hdmi_data.enc_out_bus_format)) {
-	case V4L2_YCBCR_ENC_601:
+		switch (hdmi->hdmi_data.enc_out_encoding) {
-		if (hdmi->hdmi_data.enc_in_encoding == V4L2_YCBCR_ENC_XV601)
+		case V4L2_YCBCR_ENC_601:
-			frame.colorimetry = HDMI_COLORIMETRY_EXTENDED;
+			if (hdmi->hdmi_data.enc_in_encoding == V4L2_YCBCR_ENC_XV601)
-		else
+				frame.colorimetry = HDMI_COLORIMETRY_EXTENDED;
+			else
+				frame.colorimetry = HDMI_COLORIMETRY_ITU_601;
+			frame.extended_colorimetry =
+					HDMI_EXTENDED_COLORIMETRY_XV_YCC_601;
+			break;
+		case V4L2_YCBCR_ENC_709:
+			if (hdmi->hdmi_data.enc_in_encoding == V4L2_YCBCR_ENC_XV709)
+				frame.colorimetry = HDMI_COLORIMETRY_EXTENDED;
+			else
+				frame.colorimetry = HDMI_COLORIMETRY_ITU_709;
+			frame.extended_colorimetry =
+					HDMI_EXTENDED_COLORIMETRY_XV_YCC_709;
+			break;
+		default: /* Carries no data */
 			frame.colorimetry = HDMI_COLORIMETRY_ITU_601;
+			frame.extended_colorimetry =
+					HDMI_EXTENDED_COLORIMETRY_XV_YCC_601;
+			break;
+		}
+	} else {
+		frame.colorimetry = HDMI_COLORIMETRY_NONE;
 		frame.extended_colorimetry =
-				HDMI_EXTENDED_COLORIMETRY_XV_YCC_601;
+			HDMI_EXTENDED_COLORIMETRY_XV_YCC_601;
-		break;
-	case V4L2_YCBCR_ENC_709:
-		if (hdmi->hdmi_data.enc_in_encoding == V4L2_YCBCR_ENC_XV709)
-			frame.colorimetry = HDMI_COLORIMETRY_EXTENDED;
-		else
-			frame.colorimetry = HDMI_COLORIMETRY_ITU_709;
-		frame.extended_colorimetry =
-				HDMI_EXTENDED_COLORIMETRY_XV_YCC_709;
-		break;
-	default: /* Carries no data */
-		frame.colorimetry = HDMI_COLORIMETRY_ITU_601;
-		frame.extended_colorimetry =
-				HDMI_EXTENDED_COLORIMETRY_XV_YCC_601;
-		break;
 	}
 
 	frame.scan_mode = HDMI_SCAN_MODE_NONE;

drivers/gpu/drm/drm_lease.c

@@ -545,10 +545,12 @@ int drm_mode_create_lease_ioctl(struct drm_device *dev,
 	}
 
 	DRM_DEBUG_LEASE("Creating lease\n");
+	/* lessee will take the ownership of leases */
 	lessee = drm_lease_create(lessor, &leases);
 
 	if (IS_ERR(lessee)) {
 		ret = PTR_ERR(lessee);
+		idr_destroy(&leases);
 		goto out_leases;
 	}
 
@@ -583,7 +585,6 @@ out_lessee:
 
 out_leases:
 	put_unused_fd(fd);
-	idr_destroy(&leases);
 
 	DRM_DEBUG_LEASE("drm_mode_create_lease_ioctl failed: %d\n", ret);
 	return ret;

drivers/gpu/drm/exynos/exynos_drm_dsi.c

@@ -1722,8 +1722,9 @@ static int exynos_dsi_probe(struct platform_device *pdev)
 	ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(dsi->supplies),
 				      dsi->supplies);
 	if (ret) {
-		dev_info(dev, "failed to get regulators: %d\n", ret);
+		if (ret != -EPROBE_DEFER)
-		return -EPROBE_DEFER;
+			dev_info(dev, "failed to get regulators: %d\n", ret);
+		return ret;
 	}
 
 	dsi->clks = devm_kcalloc(dev,
@@ -1736,9 +1737,10 @@ static int exynos_dsi_probe(struct platform_device *pdev)
 		dsi->clks[i] = devm_clk_get(dev, clk_names[i]);
 		if (IS_ERR(dsi->clks[i])) {
 			if (strcmp(clk_names[i], "sclk_mipi") == 0) {
-				strcpy(clk_names[i], OLD_SCLK_MIPI_CLK_NAME);
+				dsi->clks[i] = devm_clk_get(dev,
-				i--;
+							OLD_SCLK_MIPI_CLK_NAME);
-				continue;
+				if (!IS_ERR(dsi->clks[i]))
+					continue;
 			}
 
 			dev_info(dev, "failed to get the clock: %s\n",

drivers/gpu/drm/mediatek/mtk_drm_crtc.c

@@ -506,10 +506,18 @@ static const struct drm_crtc_helper_funcs mtk_crtc_helper_funcs = {
 
 static int mtk_drm_crtc_init(struct drm_device *drm,
 			     struct mtk_drm_crtc *mtk_crtc,
-			     struct drm_plane *primary,
+			     unsigned int pipe)
-			     struct drm_plane *cursor, unsigned int pipe)
 {
-	int ret;
+	struct drm_plane *primary = NULL;
+	struct drm_plane *cursor = NULL;
+	int i, ret;
+
+	for (i = 0; i < mtk_crtc->layer_nr; i++) {
+		if (mtk_crtc->planes[i].type == DRM_PLANE_TYPE_PRIMARY)
+			primary = &mtk_crtc->planes[i];
+		else if (mtk_crtc->planes[i].type == DRM_PLANE_TYPE_CURSOR)
+			cursor = &mtk_crtc->planes[i];
+	}
 
 	ret = drm_crtc_init_with_planes(drm, &mtk_crtc->base, primary, cursor,
 					&mtk_crtc_funcs, NULL);
@@ -622,9 +630,7 @@ int mtk_drm_crtc_create(struct drm_device *drm_dev,
 			goto unprepare;
 	}
 
-	ret = mtk_drm_crtc_init(drm_dev, mtk_crtc, &mtk_crtc->planes[0],
+	ret = mtk_drm_crtc_init(drm_dev, mtk_crtc, pipe);
-				mtk_crtc->layer_nr > 1 ? &mtk_crtc->planes[1] :
-				NULL, pipe);
 	if (ret < 0)
 		goto unprepare;
 	drm_mode_crtc_set_gamma_size(&mtk_crtc->base, MTK_LUT_SIZE);

drivers/hwtracing/intel_th/msu.c

@@ -491,7 +491,7 @@ static int msc_configure(struct msc *msc)
 	lockdep_assert_held(&msc->buf_mutex);
 
 	if (msc->mode > MSC_MODE_MULTI)
-		return -ENOTSUPP;
+		return -EINVAL;
 
 	if (msc->mode == MSC_MODE_MULTI)
 		msc_buffer_clear_hw_header(msc);
@@ -942,7 +942,7 @@ static int msc_buffer_alloc(struct msc *msc, unsigned long *nr_pages,
 	} else if (msc->mode == MSC_MODE_MULTI) {
 		ret = msc_buffer_multi_alloc(msc, nr_pages, nr_wins);
 	} else {
-		ret = -ENOTSUPP;
+		ret = -EINVAL;
 	}
 
 	if (!ret) {
@@ -1165,7 +1165,7 @@ static ssize_t intel_th_msc_read(struct file *file, char __user *buf,
 		if (ret >= 0)
 			*ppos = iter->offset;
 	} else {
-		ret = -ENOTSUPP;
+		ret = -EINVAL;
 	}
 
 put_count:

drivers/hwtracing/intel_th/pci.c

@@ -210,6 +210,11 @@ static const struct pci_device_id intel_th_pci_id_table[] = {
 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x4da6),
 		.driver_data = (kernel_ulong_t)&intel_th_2x,
 	},
+	{
+		/* Elkhart Lake CPU */
+		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x4529),
+		.driver_data = (kernel_ulong_t)&intel_th_2x,
+	},
 	{
 		/* Elkhart Lake */
 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x4b26),

drivers/iio/accel/st_accel_i2c.c

@@ -107,7 +107,7 @@ MODULE_DEVICE_TABLE(of, st_accel_of_match);
 
 #ifdef CONFIG_ACPI
 static const struct acpi_device_id st_accel_acpi_match[] = {
-	{"SMO8840", (kernel_ulong_t)LNG2DM_ACCEL_DEV_NAME},
+	{"SMO8840", (kernel_ulong_t)LIS2DH12_ACCEL_DEV_NAME},
 	{"SMO8A90", (kernel_ulong_t)LNG2DM_ACCEL_DEV_NAME},
 	{ },
 };

drivers/iio/adc/at91-sama5d2_adc.c

@@ -731,6 +731,7 @@ static int at91_adc_configure_trigger(struct iio_trigger *trig, bool state)
 
 	for_each_set_bit(bit, indio->active_scan_mask, indio->num_channels) {
 		struct iio_chan_spec const *chan = at91_adc_chan_get(indio, bit);
+		u32 cor;
 
 		if (!chan)
 			continue;
@@ -739,6 +740,20 @@ static int at91_adc_configure_trigger(struct iio_trigger *trig, bool state)
 		    chan->type == IIO_PRESSURE)
 			continue;
 
+		if (state) {
+			cor = at91_adc_readl(st, AT91_SAMA5D2_COR);
+
+			if (chan->differential)
+				cor |= (BIT(chan->channel) |
+					BIT(chan->channel2)) <<
+					AT91_SAMA5D2_COR_DIFF_OFFSET;
+			else
+				cor &= ~(BIT(chan->channel) <<
+				       AT91_SAMA5D2_COR_DIFF_OFFSET);
+
+			at91_adc_writel(st, AT91_SAMA5D2_COR, cor);
+		}
+
 		if (state) {
 			at91_adc_writel(st, AT91_SAMA5D2_CHER,
 					BIT(chan->channel));

drivers/iio/light/vcnl4000.c

@@ -150,9 +150,10 @@ static int vcnl4200_init(struct vcnl4000_data *data)
 	data->al_scale = 24000;
 	data->vcnl4200_al.reg = VCNL4200_AL_DATA;
 	data->vcnl4200_ps.reg = VCNL4200_PS_DATA;
-	/* Integration time is 50ms, but the experiments show 54ms in total. */
+	/* Default wait time is 50ms, add 20% tolerance. */
-	data->vcnl4200_al.sampling_rate = ktime_set(0, 54000 * 1000);
+	data->vcnl4200_al.sampling_rate = ktime_set(0, 60000 * 1000);
-	data->vcnl4200_ps.sampling_rate = ktime_set(0, 4200 * 1000);
+	/* Default wait time is 4.8ms, add 20% tolerance. */
+	data->vcnl4200_ps.sampling_rate = ktime_set(0, 5760 * 1000);
 	data->vcnl4200_al.last_measurement = ktime_set(0, 0);
 	data->vcnl4200_ps.last_measurement = ktime_set(0, 0);
 	mutex_init(&data->vcnl4200_al.lock);

drivers/iio/magnetometer/ak8974.c

@@ -563,7 +563,7 @@ static int ak8974_read_raw(struct iio_dev *indio_dev,
 		 * We read all axes and discard all but one, for optimized
 		 * reading, use the triggered buffer.
 		 */
-		*val = le16_to_cpu(hw_values[chan->address]);
+		*val = (s16)le16_to_cpu(hw_values[chan->address]);
 
 		ret = IIO_VAL_INT;
 	}

drivers/iio/trigger/stm32-timer-trigger.c

@@ -161,7 +161,8 @@ static int stm32_timer_start(struct stm32_timer_trigger *priv,
 	return 0;
 }
 
-static void stm32_timer_stop(struct stm32_timer_trigger *priv)
+static void stm32_timer_stop(struct stm32_timer_trigger *priv,
+			     struct iio_trigger *trig)
 {
 	u32 ccer, cr1;
 
@@ -179,6 +180,12 @@ static void stm32_timer_stop(struct stm32_timer_trigger *priv)
 	regmap_write(priv->regmap, TIM_PSC, 0);
 	regmap_write(priv->regmap, TIM_ARR, 0);
 
+	/* Force disable master mode */
+	if (stm32_timer_is_trgo2_name(trig->name))
+		regmap_update_bits(priv->regmap, TIM_CR2, TIM_CR2_MMS2, 0);
+	else
+		regmap_update_bits(priv->regmap, TIM_CR2, TIM_CR2_MMS, 0);
+
 	/* Make sure that registers are updated */
 	regmap_update_bits(priv->regmap, TIM_EGR, TIM_EGR_UG, TIM_EGR_UG);
 }
@@ -197,7 +204,7 @@ static ssize_t stm32_tt_store_frequency(struct device *dev,
 		return ret;
 
 	if (freq == 0) {
-		stm32_timer_stop(priv);
+		stm32_timer_stop(priv, trig);
 	} else {
 		ret = stm32_timer_start(priv, trig, freq);
 		if (ret)

drivers/md/dm-bio-record.h

@@ -20,8 +20,13 @@
 struct dm_bio_details {
 	struct gendisk *bi_disk;
 	u8 bi_partno;
+	int __bi_remaining;
 	unsigned long bi_flags;
 	struct bvec_iter bi_iter;
+	bio_end_io_t *bi_end_io;
+#if defined(CONFIG_BLK_DEV_INTEGRITY)
+	struct bio_integrity_payload *bi_integrity;
+#endif
 };
 
 static inline void dm_bio_record(struct dm_bio_details *bd, struct bio *bio)
@@ -30,6 +35,11 @@ static inline void dm_bio_record(struct dm_bio_details *bd, struct bio *bio)
 	bd->bi_partno = bio->bi_partno;
 	bd->bi_flags = bio->bi_flags;
 	bd->bi_iter = bio->bi_iter;
+	bd->__bi_remaining = atomic_read(&bio->__bi_remaining);
+	bd->bi_end_io = bio->bi_end_io;
+#if defined(CONFIG_BLK_DEV_INTEGRITY)
+	bd->bi_integrity = bio_integrity(bio);
+#endif
 }
 
 static inline void dm_bio_restore(struct dm_bio_details *bd, struct bio *bio)
@@ -38,6 +48,11 @@ static inline void dm_bio_restore(struct dm_bio_details *bd, struct bio *bio)
 	bio->bi_partno = bd->bi_partno;
 	bio->bi_flags = bd->bi_flags;
 	bio->bi_iter = bd->bi_iter;
+	atomic_set(&bio->__bi_remaining, bd->__bi_remaining);
+	bio->bi_end_io = bd->bi_end_io;
+#if defined(CONFIG_BLK_DEV_INTEGRITY)
+	bio->bi_integrity = bd->bi_integrity;
+#endif
 }
 
 #endif

drivers/md/dm-integrity.c

@@ -6,6 +6,8 @@
  * This file is released under the GPL.
  */
 
+#include "dm-bio-record.h"
+
 #include <linux/compiler.h>
 #include <linux/module.h>
 #include <linux/device-mapper.h>
@@ -276,11 +278,7 @@ struct dm_integrity_io {
 
 	struct completion *completion;
 
-	struct gendisk *orig_bi_disk;
+	struct dm_bio_details bio_details;
-	u8 orig_bi_partno;
-	bio_end_io_t *orig_bi_end_io;
-	struct bio_integrity_payload *orig_bi_integrity;
-	struct bvec_iter orig_bi_iter;
 };
 
 struct journal_completion {
@@ -1249,14 +1247,9 @@ static void integrity_end_io(struct bio *bio)
 {
 	struct dm_integrity_io *dio = dm_per_bio_data(bio, sizeof(struct dm_integrity_io));
 
-	bio->bi_iter = dio->orig_bi_iter;
+	dm_bio_restore(&dio->bio_details, bio);
-	bio->bi_disk = dio->orig_bi_disk;
+	if (bio->bi_integrity)
-	bio->bi_partno = dio->orig_bi_partno;
-	if (dio->orig_bi_integrity) {
-		bio->bi_integrity = dio->orig_bi_integrity;
 		bio->bi_opf |= REQ_INTEGRITY;
-	}
-	bio->bi_end_io = dio->orig_bi_end_io;
 
 	if (dio->completion)
 		complete(dio->completion);
@@ -1336,7 +1329,7 @@ static void integrity_metadata(struct work_struct *w)
 		if (!checksums)
 			checksums = checksums_onstack;
 
-		__bio_for_each_segment(bv, bio, iter, dio->orig_bi_iter) {
+		__bio_for_each_segment(bv, bio, iter, dio->bio_details.bi_iter) {
 			unsigned pos;
 			char *mem, *checksums_ptr;
 
@@ -1380,7 +1373,7 @@ again:
 		if (likely(checksums != checksums_onstack))
 			kfree(checksums);
 	} else {
-		struct bio_integrity_payload *bip = dio->orig_bi_integrity;
+		struct bio_integrity_payload *bip = dio->bio_details.bi_integrity;
 
 		if (bip) {
 			struct bio_vec biv;
@@ -1784,20 +1777,13 @@ offload_to_thread:
 	} else
 		dio->completion = NULL;
 
-	dio->orig_bi_iter = bio->bi_iter;
+	dm_bio_record(&dio->bio_details, bio);
-
-	dio->orig_bi_disk = bio->bi_disk;
-	dio->orig_bi_partno = bio->bi_partno;
 	bio_set_dev(bio, ic->dev->bdev);
-
-	dio->orig_bi_integrity = bio_integrity(bio);
 	bio->bi_integrity = NULL;
 	bio->bi_opf &= ~REQ_INTEGRITY;
-
-	dio->orig_bi_end_io = bio->bi_end_io;
 	bio->bi_end_io = integrity_end_io;
-
 	bio->bi_iter.bi_size = dio->range.n_sectors << SECTOR_SHIFT;
+
 	generic_make_request(bio);
 
 	if (need_sync_io) {

drivers/misc/altera-stapl/altera.c

@@ -2126,8 +2126,8 @@ exit_done:
 	return status;
 }
 
-static int altera_get_note(u8 *p, s32 program_size,
+static int altera_get_note(u8 *p, s32 program_size, s32 *offset,
-			s32 *offset, char *key, char *value, int length)
+			   char *key, char *value, int keylen, int vallen)
 /*
  * Gets key and value of NOTE fields in the JBC file.
  * Can be called in two modes:  if offset pointer is NULL,
@@ -2184,7 +2184,7 @@ static int altera_get_note(u8 *p, s32 program_size,
 						&p[note_table + (8 * i) + 4])];
 
 				if (value != NULL)
-					strlcpy(value, value_ptr, length);
+					strlcpy(value, value_ptr, vallen);
 
 			}
 		}
@@ -2203,13 +2203,13 @@ static int altera_get_note(u8 *p, s32 program_size,
 				strlcpy(key, &p[note_strings +
 						get_unaligned_be32(
 						&p[note_table + (8 * i)])],
-					length);
+					keylen);
 
 			if (value != NULL)
 				strlcpy(value, &p[note_strings +
 						get_unaligned_be32(
 						&p[note_table + (8 * i) + 4])],
-					length);
+					vallen);
 
 			*offset = i + 1;
 		}
@@ -2463,7 +2463,7 @@ int altera_init(struct altera_config *config, const struct firmware *fw)
 			__func__, (format_version == 2) ? "Jam STAPL" :
 						"pre-standardized Jam 1.1");
 		while (altera_get_note((u8 *)fw->data, fw->size,
-					&offset, key, value, 256) == 0)
+					&offset, key, value, 32, 256) == 0)
 			printk(KERN_INFO "%s: NOTE \"%s\" = \"%s\"\n",
 					__func__, key, value);
 	}

drivers/misc/cardreader/rts5227.c

@@ -369,6 +369,6 @@ static const struct pcr_ops rts522a_pcr_ops = {
 void rts522a_init_params(struct rtsx_pcr *pcr)
 {
 	rts5227_init_params(pcr);
-
+	pcr->tx_initial_phase = SET_CLOCK_PHASE(20, 20, 11);
 	pcr->reg_pm_ctrl3 = RTS522A_PM_CTRL3;
 }

drivers/misc/cardreader/rts5249.c

@@ -623,6 +623,7 @@ static const struct pcr_ops rts524a_pcr_ops = {
 void rts524a_init_params(struct rtsx_pcr *pcr)
 {
 	rts5249_init_params(pcr);
+	pcr->tx_initial_phase = SET_CLOCK_PHASE(27, 29, 11);
 	pcr->option.ltr_l1off_sspwrgate = LTR_L1OFF_SSPWRGATE_5250_DEF;
 	pcr->option.ltr_l1off_snooze_sspwrgate =
 		LTR_L1OFF_SNOOZE_SSPWRGATE_5250_DEF;
@@ -731,6 +732,7 @@ static const struct pcr_ops rts525a_pcr_ops = {
 void rts525a_init_params(struct rtsx_pcr *pcr)
 {
 	rts5249_init_params(pcr);
+	pcr->tx_initial_phase = SET_CLOCK_PHASE(25, 29, 11);
 	pcr->option.ltr_l1off_sspwrgate = LTR_L1OFF_SSPWRGATE_5250_DEF;
 	pcr->option.ltr_l1off_snooze_sspwrgate =
 		LTR_L1OFF_SNOOZE_SSPWRGATE_5250_DEF;

drivers/misc/cardreader/rts5260.c

@@ -712,7 +712,7 @@ void rts5260_init_params(struct rtsx_pcr *pcr)
 	pcr->sd30_drive_sel_1v8 = CFG_DRIVER_TYPE_B;
 	pcr->sd30_drive_sel_3v3 = CFG_DRIVER_TYPE_B;
 	pcr->aspm_en = ASPM_L1_EN;
-	pcr->tx_initial_phase = SET_CLOCK_PHASE(1, 29, 16);
+	pcr->tx_initial_phase = SET_CLOCK_PHASE(27, 29, 11);
 	pcr->rx_initial_phase = SET_CLOCK_PHASE(24, 6, 5);
 
 	pcr->ic_version = rts5260_get_ic_version(pcr);

drivers/mmc/host/rtsx_pci_sdmmc.c

@@ -618,19 +618,22 @@ static int sd_change_phase(struct realtek_pci_sdmmc *host,
 		u8 sample_point, bool rx)
 {
 	struct rtsx_pcr *pcr = host->pcr;
-
+	u16 SD_VP_CTL = 0;
 	dev_dbg(sdmmc_dev(host), "%s(%s): sample_point = %d\n",
 			__func__, rx ? "RX" : "TX", sample_point);
 
 	rtsx_pci_write_register(pcr, CLK_CTL, CHANGE_CLK, CHANGE_CLK);
-	if (rx)
+	if (rx) {
+		SD_VP_CTL = SD_VPRX_CTL;
 		rtsx_pci_write_register(pcr, SD_VPRX_CTL,
 			PHASE_SELECT_MASK, sample_point);
-	else
+	} else {
+		SD_VP_CTL = SD_VPTX_CTL;
 		rtsx_pci_write_register(pcr, SD_VPTX_CTL,
 			PHASE_SELECT_MASK, sample_point);
-	rtsx_pci_write_register(pcr, SD_VPCLK0_CTL, PHASE_NOT_RESET, 0);
+	}
-	rtsx_pci_write_register(pcr, SD_VPCLK0_CTL, PHASE_NOT_RESET,
+	rtsx_pci_write_register(pcr, SD_VP_CTL, PHASE_NOT_RESET, 0);
+	rtsx_pci_write_register(pcr, SD_VP_CTL, PHASE_NOT_RESET,
 				PHASE_NOT_RESET);
 	rtsx_pci_write_register(pcr, CLK_CTL, CHANGE_CLK, 0);
 	rtsx_pci_write_register(pcr, SD_CFG1, SD_ASYNC_FIFO_NOT_RST, 0);

drivers/mmc/host/sdhci-of-at91.c

@@ -126,7 +126,8 @@ static void sdhci_at91_reset(struct sdhci_host *host, u8 mask)
 {
 	sdhci_reset(host, mask);
 
-	if (host->mmc->caps & MMC_CAP_NONREMOVABLE)
+	if ((host->mmc->caps & MMC_CAP_NONREMOVABLE)
+	    || mmc_gpio_get_cd(host->mmc) >= 0)
 		sdhci_at91_set_force_card_detect(host);
 }
 
@@ -405,8 +406,11 @@ static int sdhci_at91_probe(struct platform_device *pdev)
 	 * detection procedure using the SDMCC_CD signal is bypassed.
 	 * This bit is reset when a software reset for all command is performed
 	 * so we need to implement our own reset function to set back this bit.
+	 *
+	 * WA: SAMA5D2 doesn't drive CMD if using CD GPIO line.
 	 */
-	if (host->mmc->caps & MMC_CAP_NONREMOVABLE)
+	if ((host->mmc->caps & MMC_CAP_NONREMOVABLE)
+	    || mmc_gpio_get_cd(host->mmc) >= 0)
 		sdhci_at91_set_force_card_detect(host);
 
 	pm_runtime_put_autosuspend(&pdev->dev);

drivers/net/vrf.c

@@ -993,23 +993,24 @@ static struct sk_buff *vrf_ip6_rcv(struct net_device *vrf_dev,
 				   struct sk_buff *skb)
 {
 	int orig_iif = skb->skb_iif;
-	bool need_strict = rt6_need_strict(&ipv6_hdr(skb)->daddr);
+	bool need_strict;
-	bool is_ndisc = ipv6_ndisc_frame(skb);
 
-	/* loopback, multicast & non-ND link-local traffic; do not push through
+	/* loopback traffic; do not push through packet taps again.
-	 * packet taps again. Reset pkt_type for upper layers to process skb
+	 * Reset pkt_type for upper layers to process skb
 	 */
-	if (skb->pkt_type == PACKET_LOOPBACK || (need_strict && !is_ndisc)) {
+	if (skb->pkt_type == PACKET_LOOPBACK) {
 		skb->dev = vrf_dev;
 		skb->skb_iif = vrf_dev->ifindex;
 		IP6CB(skb)->flags |= IP6SKB_L3SLAVE;
-		if (skb->pkt_type == PACKET_LOOPBACK)
+		skb->pkt_type = PACKET_HOST;
-			skb->pkt_type = PACKET_HOST;
 		goto out;
 	}
 
-	/* if packet is NDISC then keep the ingress interface */
+	/* if packet is NDISC or addressed to multicast or link-local
-	if (!is_ndisc) {
+	 * then keep the ingress interface
+	 */
+	need_strict = rt6_need_strict(&ipv6_hdr(skb)->daddr);
+	if (!ipv6_ndisc_frame(skb) && !need_strict) {
 		vrf_rx_stats(vrf_dev, skb->len);
 		skb->dev = vrf_dev;
 		skb->skb_iif = vrf_dev->ifindex;

drivers/perf/arm_pmu_acpi.c

@@ -27,8 +27,6 @@ static int arm_pmu_acpi_register_irq(int cpu)
 	int gsi, trigger;
 
 	gicc = acpi_cpu_get_madt_gicc(cpu);
-	if (WARN_ON(!gicc))
-		return -EINVAL;
 
 	gsi = gicc->performance_interrupt;
 
@@ -67,11 +65,10 @@ static void arm_pmu_acpi_unregister_irq(int cpu)
 	int gsi;
 
 	gicc = acpi_cpu_get_madt_gicc(cpu);
-	if (!gicc)
-		return;
 
 	gsi = gicc->performance_interrupt;
-	acpi_unregister_gsi(gsi);
+	if (gsi)
+		acpi_unregister_gsi(gsi);
 }
 
 static int arm_pmu_acpi_parse_irqs(void)

drivers/rtc/Kconfig

@@ -314,6 +314,7 @@ config RTC_DRV_MAX6900
 config RTC_DRV_MAX8907
 	tristate "Maxim MAX8907"
 	depends on MFD_MAX8907 || COMPILE_TEST
+	select REGMAP_IRQ
 	help
 	  If you say yes here you will get support for the
 	  RTC of Maxim MAX8907 PMIC.

drivers/spi/spi-pxa2xx.c

@@ -76,6 +76,10 @@ MODULE_ALIAS("platform:pxa2xx-spi");
 #define LPSS_CAPS_CS_EN_SHIFT			9
 #define LPSS_CAPS_CS_EN_MASK			(0xf << LPSS_CAPS_CS_EN_SHIFT)
 
+#define LPSS_PRIV_CLOCK_GATE 0x38
+#define LPSS_PRIV_CLOCK_GATE_CLK_CTL_MASK 0x3
+#define LPSS_PRIV_CLOCK_GATE_CLK_CTL_FORCE_ON 0x3
+
 struct lpss_config {
 	/* LPSS offset from drv_data->ioaddr */
 	unsigned offset;
@@ -92,6 +96,8 @@ struct lpss_config {
 	unsigned cs_sel_shift;
 	unsigned cs_sel_mask;
 	unsigned cs_num;
+	/* Quirks */
+	unsigned cs_clk_stays_gated : 1;
 };
 
 /* Keep these sorted with enum pxa_ssp_type */
@@ -162,6 +168,7 @@ static const struct lpss_config lpss_platforms[] = {
 		.tx_threshold_hi = 56,
 		.cs_sel_shift = 8,
 		.cs_sel_mask = 3 << 8,
+		.cs_clk_stays_gated = true,
 	},
 };
 
@@ -389,6 +396,22 @@ static void lpss_ssp_cs_control(struct spi_device *spi, bool enable)
 	else
 		value |= LPSS_CS_CONTROL_CS_HIGH;
 	__lpss_ssp_write_priv(drv_data, config->reg_cs_ctrl, value);
+	if (config->cs_clk_stays_gated) {
+		u32 clkgate;
+
+		/*
+		 * Changing CS alone when dynamic clock gating is on won't
+		 * actually flip CS at that time. This ruins SPI transfers
+		 * that specify delays, or have no data. Toggle the clock mode
+		 * to force on briefly to poke the CS pin to move.
+		 */
+		clkgate = __lpss_ssp_read_priv(drv_data, LPSS_PRIV_CLOCK_GATE);
+		value = (clkgate & ~LPSS_PRIV_CLOCK_GATE_CLK_CTL_MASK) |
+			LPSS_PRIV_CLOCK_GATE_CLK_CTL_FORCE_ON;
+
+		__lpss_ssp_write_priv(drv_data, LPSS_PRIV_CLOCK_GATE, value);
+		__lpss_ssp_write_priv(drv_data, LPSS_PRIV_CLOCK_GATE, clkgate);
+	}
 }
 
 static void cs_assert(struct spi_device *spi)

drivers/spi/spi-qup.c

@@ -1190,6 +1190,11 @@ static int spi_qup_suspend(struct device *device)
 	struct spi_qup *controller = spi_master_get_devdata(master);
 	int ret;
 
+	if (pm_runtime_suspended(device)) {
+		ret = spi_qup_pm_resume_runtime(device);
+		if (ret)
+			return ret;
+	}
 	ret = spi_master_suspend(master);
 	if (ret)
 		return ret;
@@ -1198,10 +1203,8 @@ static int spi_qup_suspend(struct device *device)
 	if (ret)
 		return ret;
 
-	if (!pm_runtime_suspended(device)) {
+	clk_disable_unprepare(controller->cclk);
-		clk_disable_unprepare(controller->cclk);
+	clk_disable_unprepare(controller->iclk);
-		clk_disable_unprepare(controller->iclk);
-	}
 	return 0;
 }
 

drivers/spi/spi-zynqmp-gqspi.c

@@ -403,9 +403,6 @@ static void zynqmp_qspi_chipselect(struct spi_device *qspi, bool is_high)
 
 	zynqmp_gqspi_write(xqspi, GQSPI_GEN_FIFO_OFST, genfifoentry);
 
-	/* Dummy generic FIFO entry */
-	zynqmp_gqspi_write(xqspi, GQSPI_GEN_FIFO_OFST, 0x0);
-
 	/* Manually start the generic FIFO command */
 	zynqmp_gqspi_write(xqspi, GQSPI_CONFIG_OFST,
 			zynqmp_gqspi_read(xqspi, GQSPI_CONFIG_OFST) |

drivers/staging/greybus/tools/loopback_test.c

@@ -21,6 +21,7 @@
 #include <signal.h>
 
 #define MAX_NUM_DEVICES 10
+#define MAX_SYSFS_PREFIX 0x80
 #define MAX_SYSFS_PATH	0x200
 #define CSV_MAX_LINE	0x1000
 #define SYSFS_MAX_INT	0x20
@@ -69,7 +70,7 @@ struct loopback_results {
 };
 
 struct loopback_device {
-	char name[MAX_SYSFS_PATH];
+	char name[MAX_STR_LEN];
 	char sysfs_entry[MAX_SYSFS_PATH];
 	char debugfs_entry[MAX_SYSFS_PATH];
 	struct loopback_results results;
@@ -95,8 +96,8 @@ struct loopback_test {
 	int stop_all;
 	int poll_count;
 	char test_name[MAX_STR_LEN];
-	char sysfs_prefix[MAX_SYSFS_PATH];
+	char sysfs_prefix[MAX_SYSFS_PREFIX];
-	char debugfs_prefix[MAX_SYSFS_PATH];
+	char debugfs_prefix[MAX_SYSFS_PREFIX];
 	struct timespec poll_timeout;
 	struct loopback_device devices[MAX_NUM_DEVICES];
 	struct loopback_results aggregate_results;
@@ -645,7 +646,7 @@ baddir:
 static int open_poll_files(struct loopback_test *t)
 {
 	struct loopback_device *dev;
-	char buf[MAX_STR_LEN];
+	char buf[MAX_SYSFS_PATH + MAX_STR_LEN];
 	char dummy;
 	int fds_idx = 0;
 	int i;
@@ -663,7 +664,7 @@ static int open_poll_files(struct loopback_test *t)
 			goto err;
 		}
 		read(t->fds[fds_idx].fd, &dummy, 1);
-		t->fds[fds_idx].events = EPOLLERR|EPOLLPRI;
+		t->fds[fds_idx].events = POLLERR | POLLPRI;
 		t->fds[fds_idx].revents = 0;
 		fds_idx++;
 	}
@@ -756,7 +757,7 @@ static int wait_for_complete(struct loopback_test *t)
 		}
 
 		for (i = 0; i < t->poll_count; i++) {
-			if (t->fds[i].revents & EPOLLPRI) {
+			if (t->fds[i].revents & POLLPRI) {
 				/* Dummy read to clear the event */
 				read(t->fds[i].fd, &dummy, 1);
 				number_of_events++;
@@ -915,10 +916,10 @@ int main(int argc, char *argv[])
 			t.iteration_max = atoi(optarg);
 			break;
 		case 'S':
-			snprintf(t.sysfs_prefix, MAX_SYSFS_PATH, "%s", optarg);
+			snprintf(t.sysfs_prefix, MAX_SYSFS_PREFIX, "%s", optarg);
 			break;
 		case 'D':
-			snprintf(t.debugfs_prefix, MAX_SYSFS_PATH, "%s", optarg);
+			snprintf(t.debugfs_prefix, MAX_SYSFS_PREFIX, "%s", optarg);
 			break;
 		case 'm':
 			t.mask = atol(optarg);
@@ -969,10 +970,10 @@ int main(int argc, char *argv[])
 	}
 
 	if (!strcmp(t.sysfs_prefix, ""))
-		snprintf(t.sysfs_prefix, MAX_SYSFS_PATH, "%s", sysfs_prefix);
+		snprintf(t.sysfs_prefix, MAX_SYSFS_PREFIX, "%s", sysfs_prefix);
 
 	if (!strcmp(t.debugfs_prefix, ""))
-		snprintf(t.debugfs_prefix, MAX_SYSFS_PATH, "%s", debugfs_prefix);
+		snprintf(t.debugfs_prefix, MAX_SYSFS_PREFIX, "%s", debugfs_prefix);
 
 	ret = find_loopback_devices(&t);
 	if (ret)

drivers/staging/rtl8188eu/os_dep/usb_intf.c

@@ -38,6 +38,7 @@ static const struct usb_device_id rtw_usb_id_tbl[] = {
 	{USB_DEVICE(0x2001, 0x331B)}, /* D-Link DWA-121 rev B1 */
 	{USB_DEVICE(0x2357, 0x010c)}, /* TP-Link TL-WN722N v2 */
 	{USB_DEVICE(0x2357, 0x0111)}, /* TP-Link TL-WN727N v5.21 */
+	{USB_DEVICE(0x2C4E, 0x0102)}, /* MERCUSYS MW150US v2 */
 	{USB_DEVICE(0x0df6, 0x0076)}, /* Sitecom N150 v2 */
 	{USB_DEVICE(USB_VENDER_ID_REALTEK, 0xffef)}, /* Rosewill RNX-N150NUB */
 	{}	/* Terminating entry */

drivers/staging/speakup/main.c

@@ -561,7 +561,7 @@ static u_long get_word(struct vc_data *vc)
 		return 0;
 	} else if (tmpx < vc->vc_cols - 2 &&
 		   (ch == SPACE || ch == 0 || (ch < 0x100 && IS_WDLM(ch))) &&
-		   get_char(vc, (u_short *)&tmp_pos + 1, &temp) > SPACE) {
+		   get_char(vc, (u_short *)tmp_pos + 1, &temp) > SPACE) {
 		tmp_pos += 2;
 		tmpx++;
 	} else {

drivers/usb/class/cdc-acm.c

@@ -914,10 +914,10 @@ static int get_serial_info(struct acm *acm, struct serial_struct __user *info)
 	memset(&tmp, 0, sizeof(tmp));
 	tmp.xmit_fifo_size = acm->writesize;
 	tmp.baud_base = le32_to_cpu(acm->line.dwDTERate);
-	tmp.close_delay	= acm->port.close_delay / 10;
+	tmp.close_delay	= jiffies_to_msecs(acm->port.close_delay) / 10;
 	tmp.closing_wait = acm->port.closing_wait == ASYNC_CLOSING_WAIT_NONE ?
 				ASYNC_CLOSING_WAIT_NONE :
-				acm->port.closing_wait / 10;
+				jiffies_to_msecs(acm->port.closing_wait) / 10;
 
 	if (copy_to_user(info, &tmp, sizeof(tmp)))
 		return -EFAULT;
@@ -930,27 +930,35 @@ static int set_serial_info(struct acm *acm,
 {
 	struct serial_struct new_serial;
 	unsigned int closing_wait, close_delay;
+	unsigned int old_closing_wait, old_close_delay;
 	int retval = 0;
 
 	if (copy_from_user(&new_serial, newinfo, sizeof(new_serial)))
 		return -EFAULT;
 
-	close_delay = new_serial.close_delay * 10;
+	close_delay = msecs_to_jiffies(new_serial.close_delay * 10);
 	closing_wait = new_serial.closing_wait == ASYNC_CLOSING_WAIT_NONE ?
-			ASYNC_CLOSING_WAIT_NONE : new_serial.closing_wait * 10;
+			ASYNC_CLOSING_WAIT_NONE :
+			msecs_to_jiffies(new_serial.closing_wait * 10);
+
+	/* we must redo the rounding here, so that the values match */
+	old_close_delay	= jiffies_to_msecs(acm->port.close_delay) / 10;
+	old_closing_wait = acm->port.closing_wait == ASYNC_CLOSING_WAIT_NONE ?
+				ASYNC_CLOSING_WAIT_NONE :
+				jiffies_to_msecs(acm->port.closing_wait) / 10;
 
 	mutex_lock(&acm->port.mutex);
 
-	if (!capable(CAP_SYS_ADMIN)) {
+	if ((new_serial.close_delay != old_close_delay) ||
-		if ((close_delay != acm->port.close_delay) ||
+            (new_serial.closing_wait != old_closing_wait)) {
-		    (closing_wait != acm->port.closing_wait))
+		if (!capable(CAP_SYS_ADMIN))
 			retval = -EPERM;
-		else
+		else {
-			retval = -EOPNOTSUPP;
+			acm->port.close_delay  = close_delay;
-	} else {
+			acm->port.closing_wait = closing_wait;
-		acm->port.close_delay  = close_delay;
+		}
-		acm->port.closing_wait = closing_wait;
+	} else
-	}
+		retval = -EOPNOTSUPP;
 
 	mutex_unlock(&acm->port.mutex);
 	return retval;

drivers/usb/core/quirks.c

@@ -378,6 +378,12 @@ static const struct usb_device_id usb_quirk_list[] = {
 	{ USB_DEVICE(0x0b05, 0x17e0), .driver_info =
 			USB_QUIRK_IGNORE_REMOTE_WAKEUP },
 
+	/* Realtek hub in Dell WD19 (Type-C) */
+	{ USB_DEVICE(0x0bda, 0x0487), .driver_info = USB_QUIRK_NO_LPM },
+
+	/* Generic RTL8153 based ethernet adapters */
+	{ USB_DEVICE(0x0bda, 0x8153), .driver_info = USB_QUIRK_NO_LPM },
+
 	/* Action Semiconductor flash disk */
 	{ USB_DEVICE(0x10d6, 0x2200), .driver_info =
 			USB_QUIRK_STRING_FETCH_255 },

drivers/usb/host/xhci-pci.c

@@ -128,7 +128,8 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
 		xhci->quirks |= XHCI_AMD_PLL_FIX;
 
 	if (pdev->vendor == PCI_VENDOR_ID_AMD &&
-		(pdev->device == 0x15e0 ||
+		(pdev->device == 0x145c ||
+		 pdev->device == 0x15e0 ||
 		 pdev->device == 0x15e1 ||
 		 pdev->device == 0x43bb))
 		xhci->quirks |= XHCI_SUSPEND_DELAY;

drivers/usb/host/xhci-plat.c

@@ -443,6 +443,7 @@ MODULE_DEVICE_TABLE(acpi, usb_xhci_acpi_match);
 static struct platform_driver usb_xhci_driver = {
 	.probe	= xhci_plat_probe,
 	.remove	= xhci_plat_remove,
+	.shutdown = usb_hcd_platform_shutdown,
 	.driver	= {
 		.name = "xhci-hcd",
 		.pm = &xhci_plat_pm_ops,

drivers/usb/host/xhci-trace.h

@@ -289,23 +289,12 @@ DECLARE_EVENT_CLASS(xhci_log_urb,
 	),
 	TP_printk("ep%d%s-%s: urb %p pipe %u slot %d length %d/%d sgs %d/%d stream %d flags %08x",
 			__entry->epnum, __entry->dir_in ? "in" : "out",
-			({ char *s;
+			__print_symbolic(__entry->type,
-			switch (__entry->type) {
+				   { USB_ENDPOINT_XFER_INT,	"intr" },
-			case USB_ENDPOINT_XFER_INT:
+				   { USB_ENDPOINT_XFER_CONTROL,	"control" },
-				s = "intr";
+				   { USB_ENDPOINT_XFER_BULK,	"bulk" },
-				break;
+				   { USB_ENDPOINT_XFER_ISOC,	"isoc" }),
-			case USB_ENDPOINT_XFER_CONTROL:
+			__entry->urb, __entry->pipe, __entry->slot_id,
-				s = "control";
-				break;
-			case USB_ENDPOINT_XFER_BULK:
-				s = "bulk";
-				break;
-			case USB_ENDPOINT_XFER_ISOC:
-				s = "isoc";
-				break;
-			default:
-				s = "UNKNOWN";
-			} s; }), __entry->urb, __entry->pipe, __entry->slot_id,
 			__entry->actual, __entry->length, __entry->num_mapped_sgs,
 			__entry->num_sgs, __entry->stream, __entry->flags
 		)

drivers/usb/serial/option.c

@@ -1183,6 +1183,8 @@ static const struct usb_device_id option_ids[] = {
 	  .driver_info = NCTRL(0) },
 	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x110a, 0xff),	/* Telit ME910G1 */
 	  .driver_info = NCTRL(0) | RSVD(3) },
+	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x110b, 0xff),	/* Telit ME910G1 (ECM) */
+	  .driver_info = NCTRL(0) },
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE910),
 	  .driver_info = NCTRL(0) | RSVD(1) | RSVD(2) },
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE910_USBCFG4),

drivers/usb/serial/pl2303.c

@@ -93,6 +93,7 @@ static const struct usb_device_id id_table[] = {
 	{ USB_DEVICE(SUPERIAL_VENDOR_ID, SUPERIAL_PRODUCT_ID) },
 	{ USB_DEVICE(HP_VENDOR_ID, HP_LD220_PRODUCT_ID) },
 	{ USB_DEVICE(HP_VENDOR_ID, HP_LD220TA_PRODUCT_ID) },
+	{ USB_DEVICE(HP_VENDOR_ID, HP_LD381_PRODUCT_ID) },
 	{ USB_DEVICE(HP_VENDOR_ID, HP_LD960_PRODUCT_ID) },
 	{ USB_DEVICE(HP_VENDOR_ID, HP_LD960TA_PRODUCT_ID) },
 	{ USB_DEVICE(HP_VENDOR_ID, HP_LCM220_PRODUCT_ID) },

drivers/usb/serial/pl2303.h

@@ -124,6 +124,7 @@
 #define HP_LM920_PRODUCT_ID	0x026b
 #define HP_TD620_PRODUCT_ID	0x0956
 #define HP_LD960_PRODUCT_ID	0x0b39
+#define HP_LD381_PRODUCT_ID	0x0f7f
 #define HP_LCM220_PRODUCT_ID	0x3139
 #define HP_LCM960_PRODUCT_ID	0x3239
 #define HP_LD220_PRODUCT_ID	0x3524

drivers/xen/xenbus/xenbus_comms.c

@@ -313,6 +313,8 @@ static int process_msg(void)
 			req->msg.type = state.msg.type;
 			req->msg.len = state.msg.len;
 			req->body = state.body;
+			/* write body, then update state */
+			virt_wmb();
 			req->state = xb_req_state_got_reply;
 			req->cb(req);
 		} else
@@ -395,6 +397,8 @@ static int process_writes(void)
 	if (state.req->state == xb_req_state_aborted)
 		kfree(state.req);
 	else {
+		/* write err, then update state */
+		virt_wmb();
 		state.req->state = xb_req_state_got_reply;
 		wake_up(&state.req->wq);
 	}

drivers/xen/xenbus/xenbus_xs.c

@@ -191,8 +191,11 @@ static bool xenbus_ok(void)
 
 static bool test_reply(struct xb_req_data *req)
 {
-	if (req->state == xb_req_state_got_reply || !xenbus_ok())
+	if (req->state == xb_req_state_got_reply || !xenbus_ok()) {
+		/* read req->state before all other fields */
+		virt_rmb();
 		return true;
+	}
 
 	/* Make sure to reread req->state each time. */
 	barrier();
@@ -202,7 +205,7 @@ static bool test_reply(struct xb_req_data *req)
 
 static void *read_reply(struct xb_req_data *req)
 {
-	while (req->state != xb_req_state_got_reply) {
+	do {
 		wait_event(req->wq, test_reply(req));
 
 		if (!xenbus_ok())
@@ -216,7 +219,7 @@ static void *read_reply(struct xb_req_data *req)
 		if (req->err)
 			return ERR_PTR(req->err);
 
-	}
+	} while (req->state != xb_req_state_got_reply);
 
 	return req->body;
 }

fs/btrfs/inode.c

@@ -10015,6 +10015,10 @@ out_fail:
 		ret = btrfs_sync_log(trans, BTRFS_I(old_inode)->root, &ctx);
 		if (ret)
 			commit_transaction = true;
+	} else if (sync_log) {
+		mutex_lock(&root->log_mutex);
+		list_del(&ctx.list);
+		mutex_unlock(&root->log_mutex);
 	}
 	if (commit_transaction) {
 		ret = btrfs_commit_transaction(trans);

fs/inode.c

@@ -137,6 +137,7 @@ int inode_init_always(struct super_block *sb, struct inode *inode)
 	inode->i_sb = sb;
 	inode->i_blkbits = sb->s_blocksize_bits;
 	inode->i_flags = 0;
+	atomic64_set(&inode->i_sequence, 0);
 	atomic_set(&inode->i_count, 1);
 	inode->i_op = &empty_iops;
 	inode->i_fop = &no_open_fops;

include/linux/fs.h

@@ -665,6 +665,7 @@ struct inode {
 		struct rcu_head		i_rcu;
 	};
 	atomic64_t		i_version;
+	atomic64_t		i_sequence; /* see futex */
 	atomic_t		i_count;
 	atomic_t		i_dio_count;
 	atomic_t		i_writecount;

include/linux/futex.h

@@ -29,23 +29,26 @@ struct task_struct;
 
 union futex_key {
 	struct {
+		u64 i_seq;
 		unsigned long pgoff;
-		struct inode *inode;
+		unsigned int offset;
-		int offset;
 	} shared;
 	struct {
+		union {
+			struct mm_struct *mm;
+			u64 __tmp;
+		};
 		unsigned long address;
-		struct mm_struct *mm;
+		unsigned int offset;
-		int offset;
 	} private;
 	struct {
+		u64 ptr;
 		unsigned long word;
-		void *ptr;
+		unsigned int offset;
-		int offset;
 	} both;
 };
 
-#define FUTEX_KEY_INIT (union futex_key) { .both = { .ptr = NULL } }
+#define FUTEX_KEY_INIT (union futex_key) { .both = { .ptr = 0ULL } }
 
 #ifdef CONFIG_FUTEX
 extern void exit_robust_list(struct task_struct *curr);

include/linux/page-flags.h

@@ -272,7 +272,7 @@ static inline int TestClearPage##uname(struct page *page) { return 0; }
 
 __PAGEFLAG(Locked, locked, PF_NO_TAIL)
 PAGEFLAG(Waiters, waiters, PF_ONLY_HEAD) __CLEARPAGEFLAG(Waiters, waiters, PF_ONLY_HEAD)
-PAGEFLAG(Error, error, PF_NO_COMPOUND) TESTCLEARFLAG(Error, error, PF_NO_COMPOUND)
+PAGEFLAG(Error, error, PF_NO_TAIL) TESTCLEARFLAG(Error, error, PF_NO_TAIL)
 PAGEFLAG(Referenced, referenced, PF_HEAD)
 	TESTCLEARFLAG(Referenced, referenced, PF_HEAD)
 	__SETPAGEFLAG(Referenced, referenced, PF_HEAD)

include/linux/vmalloc.h

@@ -109,8 +109,9 @@ extern int remap_vmalloc_range_partial(struct vm_area_struct *vma,
 
 extern int remap_vmalloc_range(struct vm_area_struct *vma, void *addr,
 							unsigned long pgoff);
-void vmalloc_sync_all(void);
+void vmalloc_sync_mappings(void);
- 
+void vmalloc_sync_unmappings(void);
+
 /*
  *	Lowlevel-APIs (not for driver use!)
  */

kernel/futex.c

@@ -395,9 +395,9 @@ static inline int hb_waiters_pending(struct futex_hash_bucket *hb)
  */
 static struct futex_hash_bucket *hash_futex(union futex_key *key)
 {
-	u32 hash = jhash2((u32*)&key->both.word,
+	u32 hash = jhash2((u32 *)key, offsetof(typeof(*key), both.offset) / 4,
-			  (sizeof(key->both.word)+sizeof(key->both.ptr))/4,
 			  key->both.offset);
+
 	return &futex_queues[hash & (futex_hashsize - 1)];
 }
 
@@ -439,7 +439,7 @@ static void get_futex_key_refs(union futex_key *key)
 
 	switch (key->both.offset & (FUT_OFF_INODE|FUT_OFF_MMSHARED)) {
 	case FUT_OFF_INODE:
-		ihold(key->shared.inode); /* implies smp_mb(); (B) */
+		smp_mb();		/* explicit smp_mb(); (B) */
 		break;
 	case FUT_OFF_MMSHARED:
 		futex_get_mm(key); /* implies smp_mb(); (B) */
@@ -473,7 +473,6 @@ static void drop_futex_key_refs(union futex_key *key)
 
 	switch (key->both.offset & (FUT_OFF_INODE|FUT_OFF_MMSHARED)) {
 	case FUT_OFF_INODE:
-		iput(key->shared.inode);
 		break;
 	case FUT_OFF_MMSHARED:
 		mmdrop(key->private.mm);
@@ -481,6 +480,46 @@ static void drop_futex_key_refs(union futex_key *key)
 	}
 }
 
+/*
+ * Generate a machine wide unique identifier for this inode.
+ *
+ * This relies on u64 not wrapping in the life-time of the machine; which with
+ * 1ns resolution means almost 585 years.
+ *
+ * This further relies on the fact that a well formed program will not unmap
+ * the file while it has a (shared) futex waiting on it. This mapping will have
+ * a file reference which pins the mount and inode.
+ *
+ * If for some reason an inode gets evicted and read back in again, it will get
+ * a new sequence number and will _NOT_ match, even though it is the exact same
+ * file.
+ *
+ * It is important that match_futex() will never have a false-positive, esp.
+ * for PI futexes that can mess up the state. The above argues that false-negatives
+ * are only possible for malformed programs.
+ */
+static u64 get_inode_sequence_number(struct inode *inode)
+{
+	static atomic64_t i_seq;
+	u64 old;
+
+	/* Does the inode already have a sequence number? */
+	old = atomic64_read(&inode->i_sequence);
+	if (likely(old))
+		return old;
+
+	for (;;) {
+		u64 new = atomic64_add_return(1, &i_seq);
+		if (WARN_ON_ONCE(!new))
+			continue;
+
+		old = atomic64_cmpxchg_relaxed(&inode->i_sequence, 0, new);
+		if (old)
+			return old;
+		return new;
+	}
+}
+
 /**
  * get_futex_key() - Get parameters which are the keys for a futex
  * @uaddr:	virtual address of the futex
@@ -493,9 +532,15 @@ static void drop_futex_key_refs(union futex_key *key)
  *
  * The key words are stored in @key on success.
  *
- * For shared mappings, it's (page->index, file_inode(vma->vm_file),
+ * For shared mappings (when @fshared), the key is:
- * offset_within_page).  For private mappings, it's (uaddr, current->mm).
+ *   ( inode->i_sequence, page->index, offset_within_page )
- * We can usually work out the index without swapping in the page.
+ * [ also see get_inode_sequence_number() ]
+ *
+ * For private mappings (or when !@fshared), the key is:
+ *   ( current->mm, address, 0 )
+ *
+ * This allows (cross process, where applicable) identification of the futex
+ * without keeping the page pinned for the duration of the FUTEX_WAIT.
  *
  * lock_page() might sleep, the caller should not hold a spinlock.
  */
@@ -635,8 +680,6 @@ again:
 		key->private.mm = mm;
 		key->private.address = address;
 
-		get_futex_key_refs(key); /* implies smp_mb(); (B) */
-
 	} else {
 		struct inode *inode;
 
@@ -668,40 +711,14 @@ again:
 			goto again;
 		}
 
-		/*
-		 * Take a reference unless it is about to be freed. Previously
-		 * this reference was taken by ihold under the page lock
-		 * pinning the inode in place so i_lock was unnecessary. The
-		 * only way for this check to fail is if the inode was
-		 * truncated in parallel which is almost certainly an
-		 * application bug. In such a case, just retry.
-		 *
-		 * We are not calling into get_futex_key_refs() in file-backed
-		 * cases, therefore a successful atomic_inc return below will
-		 * guarantee that get_futex_key() will still imply smp_mb(); (B).
-		 */
-		if (!atomic_inc_not_zero(&inode->i_count)) {
-			rcu_read_unlock();
-			put_page(page);
-
-			goto again;
-		}
-
-		/* Should be impossible but lets be paranoid for now */
-		if (WARN_ON_ONCE(inode->i_mapping != mapping)) {
-			err = -EFAULT;
-			rcu_read_unlock();
-			iput(inode);
-
-			goto out;
-		}
-
 		key->both.offset |= FUT_OFF_INODE; /* inode-based key */
-		key->shared.inode = inode;
+		key->shared.i_seq = get_inode_sequence_number(inode);
 		key->shared.pgoff = basepage_index(tail);
 		rcu_read_unlock();
 	}
 
+	get_futex_key_refs(key); /* implies smp_mb(); (B) */
+
 out:
 	put_page(page);
 	return err;

kernel/notifier.c

@@ -552,7 +552,7 @@ NOKPROBE_SYMBOL(notify_die);
 
 int register_die_notifier(struct notifier_block *nb)
 {
-	vmalloc_sync_all();
+	vmalloc_sync_mappings();
 	return atomic_notifier_chain_register(&die_chain, nb);
 }
 EXPORT_SYMBOL_GPL(register_die_notifier);

mm/memcontrol.c

@@ -3759,7 +3759,7 @@ static void __mem_cgroup_usage_unregister_event(struct mem_cgroup *memcg,
 	struct mem_cgroup_thresholds *thresholds;
 	struct mem_cgroup_threshold_ary *new;
 	unsigned long usage;
-	int i, j, size;
+	int i, j, size, entries;
 
 	mutex_lock(&memcg->thresholds_lock);
 
@@ -3779,14 +3779,20 @@ static void __mem_cgroup_usage_unregister_event(struct mem_cgroup *memcg,
 	__mem_cgroup_threshold(memcg, type == _MEMSWAP);
 
 	/* Calculate new number of threshold */
-	size = 0;
+	size = entries = 0;
 	for (i = 0; i < thresholds->primary->size; i++) {
 		if (thresholds->primary->entries[i].eventfd != eventfd)
 			size++;
+		else
+			entries++;
 	}
 
 	new = thresholds->spare;
 
+	/* If no items related to eventfd have been cleared, nothing to do */
+	if (!entries)
+		goto unlock;
+
 	/* Set thresholds array to NULL if we don't have thresholds */
 	if (!size) {
 		kfree(new);

mm/nommu.c

@@ -446,10 +446,14 @@ void vm_unmap_aliases(void)
 EXPORT_SYMBOL_GPL(vm_unmap_aliases);
 
 /*
- * Implement a stub for vmalloc_sync_all() if the architecture chose not to
+ * Implement a stub for vmalloc_sync_[un]mapping() if the architecture
- * have one.
+ * chose not to have one.
  */
-void __weak vmalloc_sync_all(void)
+void __weak vmalloc_sync_mappings(void)
+{
+}
+
+void __weak vmalloc_sync_unmappings(void)
 {
 }
 

mm/slub.c

@@ -1935,8 +1935,6 @@ static void *get_partial(struct kmem_cache *s, gfp_t flags, int node,
 
 	if (node == NUMA_NO_NODE)
 		searchnode = numa_mem_id();
-	else if (!node_present_pages(node))
-		searchnode = node_to_mem_node(node);
 
 	object = get_partial_node(s, get_node(s, searchnode), c, flags);
 	if (object || node != NUMA_NO_NODE)
@@ -2533,17 +2531,27 @@ static void *___slab_alloc(struct kmem_cache *s, gfp_t gfpflags, int node,
 	struct page *page;
 
 	page = c->page;
-	if (!page)
+	if (!page) {
+		/*
+		 * if the node is not online or has no normal memory, just
+		 * ignore the node constraint
+		 */
+		if (unlikely(node != NUMA_NO_NODE &&
+			     !node_state(node, N_NORMAL_MEMORY)))
+			node = NUMA_NO_NODE;
 		goto new_slab;
+	}
 redo:
 
 	if (unlikely(!node_match(page, node))) {
-		int searchnode = node;
+		/*
-
+		 * same as above but node_match() being false already
-		if (node != NUMA_NO_NODE && !node_present_pages(node))
+		 * implies node != NUMA_NO_NODE
-			searchnode = node_to_mem_node(node);
+		 */
-
+		if (!node_state(node, N_NORMAL_MEMORY)) {
-		if (unlikely(!node_match(page, searchnode))) {
+			node = NUMA_NO_NODE;
+			goto redo;
+		} else {
 			stat(s, ALLOC_NODE_MISMATCH);
 			deactivate_slab(s, page, c->freelist, c);
 			goto new_slab;
@@ -2968,11 +2976,13 @@ redo:
 	barrier();
 
 	if (likely(page == c->page)) {
-		set_freepointer(s, tail_obj, c->freelist);
+		void **freelist = READ_ONCE(c->freelist);
+
+		set_freepointer(s, tail_obj, freelist);
 
 		if (unlikely(!this_cpu_cmpxchg_double(
 				s->cpu_slab->freelist, s->cpu_slab->tid,
-				c->freelist, tid,
+				freelist, tid,
 				head, next_tid(tid)))) {
 
 			note_cmpxchg_failure("slab_free", s, tid);

mm/vmalloc.c

@@ -1765,7 +1765,7 @@ void *__vmalloc_node_range(unsigned long size, unsigned long align,
 	 * First make sure the mappings are removed from all page-tables
 	 * before they are freed.
 	 */
-	vmalloc_sync_all();
+	vmalloc_sync_unmappings();
 
 	/*
 	 * In this function, newly allocated vm_struct has VM_UNINITIALIZED
@@ -2310,16 +2310,19 @@ int remap_vmalloc_range(struct vm_area_struct *vma, void *addr,
 EXPORT_SYMBOL(remap_vmalloc_range);
 
 /*
- * Implement a stub for vmalloc_sync_all() if the architecture chose not to
+ * Implement stubs for vmalloc_sync_[un]mappings () if the architecture chose
- * have one.
+ * not to have one.
  *
  * The purpose of this function is to make sure the vmalloc area
  * mappings are identical in all page-tables in the system.
  */
-void __weak vmalloc_sync_all(void)
+void __weak vmalloc_sync_mappings(void)
 {
 }
 
+void __weak vmalloc_sync_unmappings(void)
+{
+}
 
 static int f(pte_t *pte, pgtable_t table, unsigned long addr, void *data)
 {

net/ipv6/tcp_ipv6.c

@@ -734,7 +734,6 @@ static void tcp_v6_init_req(struct request_sock *req,
 			    const struct sock *sk_listener,
 			    struct sk_buff *skb)
 {
-	bool l3_slave = ipv6_l3mdev_skb(TCP_SKB_CB(skb)->header.h6.flags);
 	struct inet_request_sock *ireq = inet_rsk(req);
 	const struct ipv6_pinfo *np = inet6_sk(sk_listener);
 
@@ -742,7 +741,7 @@ static void tcp_v6_init_req(struct request_sock *req,
 	ireq->ir_v6_loc_addr = ipv6_hdr(skb)->daddr;
 
 	/* So that link locals have meaning */
-	if ((!sk_listener->sk_bound_dev_if || l3_slave) &&
+	if (!sk_listener->sk_bound_dev_if &&
 	    ipv6_addr_type(&ireq->ir_v6_rmt_addr) & IPV6_ADDR_LINKLOCAL)
 		ireq->ir_iif = tcp_v6_iif(skb);
 

scripts/Makefile.extrawarn

@@ -72,5 +72,6 @@ KBUILD_CFLAGS += $(call cc-disable-warning, format)
 KBUILD_CFLAGS += $(call cc-disable-warning, sign-compare)
 KBUILD_CFLAGS += $(call cc-disable-warning, format-zero-length)
 KBUILD_CFLAGS += $(call cc-disable-warning, uninitialized)
+KBUILD_CFLAGS += $(call cc-disable-warning, pointer-to-enum-cast)
 endif
 endif

sound/core/oss/pcm_plugin.c

@@ -111,7 +111,7 @@ int snd_pcm_plug_alloc(struct snd_pcm_substream *plug, snd_pcm_uframes_t frames)
 		while (plugin->next) {
 			if (plugin->dst_frames)
 				frames = plugin->dst_frames(plugin, frames);
-			if (snd_BUG_ON((snd_pcm_sframes_t)frames <= 0))
+			if ((snd_pcm_sframes_t)frames <= 0)
 				return -ENXIO;
 			plugin = plugin->next;
 			err = snd_pcm_plugin_alloc(plugin, frames);
@@ -123,7 +123,7 @@ int snd_pcm_plug_alloc(struct snd_pcm_substream *plug, snd_pcm_uframes_t frames)
 		while (plugin->prev) {
 			if (plugin->src_frames)
 				frames = plugin->src_frames(plugin, frames);
-			if (snd_BUG_ON((snd_pcm_sframes_t)frames <= 0))
+			if ((snd_pcm_sframes_t)frames <= 0)
 				return -ENXIO;
 			plugin = plugin->prev;
 			err = snd_pcm_plugin_alloc(plugin, frames);
@@ -209,6 +209,8 @@ snd_pcm_sframes_t snd_pcm_plug_client_size(struct snd_pcm_substream *plug, snd_p
 	if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
 		plugin = snd_pcm_plug_last(plug);
 		while (plugin && drv_frames > 0) {
+			if (drv_frames > plugin->buf_frames)
+				drv_frames = plugin->buf_frames;
 			plugin_prev = plugin->prev;
 			if (plugin->src_frames)
 				drv_frames = plugin->src_frames(plugin, drv_frames);
@@ -220,6 +222,8 @@ snd_pcm_sframes_t snd_pcm_plug_client_size(struct snd_pcm_substream *plug, snd_p
 			plugin_next = plugin->next;
 			if (plugin->dst_frames)
 				drv_frames = plugin->dst_frames(plugin, drv_frames);
+			if (drv_frames > plugin->buf_frames)
+				drv_frames = plugin->buf_frames;
 			plugin = plugin_next;
 		}
 	} else
@@ -248,11 +252,15 @@ snd_pcm_sframes_t snd_pcm_plug_slave_size(struct snd_pcm_substream *plug, snd_pc
 				if (frames < 0)
 					return frames;
 			}
+			if (frames > plugin->buf_frames)
+				frames = plugin->buf_frames;
 			plugin = plugin_next;
 		}
 	} else if (stream == SNDRV_PCM_STREAM_CAPTURE) {
 		plugin = snd_pcm_plug_last(plug);
 		while (plugin) {
+			if (frames > plugin->buf_frames)
+				frames = plugin->buf_frames;
 			plugin_prev = plugin->prev;
 			if (plugin->src_frames) {
 				frames = plugin->src_frames(plugin, frames);

sound/core/seq/oss/seq_oss_midi.c

@@ -615,6 +615,7 @@ send_midi_event(struct seq_oss_devinfo *dp, struct snd_seq_event *ev, struct seq
 		len = snd_seq_oss_timer_start(dp->timer);
 	if (ev->type == SNDRV_SEQ_EVENT_SYSEX) {
 		snd_seq_oss_readq_sysex(dp->readq, mdev->seq_device, ev);
+		snd_midi_event_reset_decode(mdev->coder);
 	} else {
 		len = snd_midi_event_decode(mdev->coder, msg, sizeof(msg), ev);
 		if (len > 0)

sound/core/seq/seq_virmidi.c

@@ -95,6 +95,7 @@ static int snd_virmidi_dev_receive_event(struct snd_virmidi_dev *rdev,
 			if ((ev->flags & SNDRV_SEQ_EVENT_LENGTH_MASK) != SNDRV_SEQ_EVENT_LENGTH_VARIABLE)
 				continue;
 			snd_seq_dump_var_event(ev, (snd_seq_dump_func_t)snd_rawmidi_receive, vmidi->substream);
+			snd_midi_event_reset_decode(vmidi->parser);
 		} else {
 			len = snd_midi_event_decode(vmidi->parser, msg, sizeof(msg), ev);
 			if (len > 0)

sound/pci/hda/patch_realtek.c

@@ -7828,6 +7828,8 @@ static int patch_alc269(struct hda_codec *codec)
 		spec->gen.mixer_nid = 0;
 		break;
 	case 0x10ec0225:
+		codec->power_save_node = 1;
+		/* fall through */
 	case 0x10ec0295:
 	case 0x10ec0299:
 		spec->codec_variant = ALC269_TYPE_ALC225;

sound/usb/line6/driver.c

@@ -320,7 +320,7 @@ static void line6_data_received(struct urb *urb)
 				line6_midibuf_read(mb, line6->buffer_message,
 						LINE6_MIDI_MESSAGE_MAXLEN);
 
-			if (done == 0)
+			if (done <= 0)
 				break;
 
 			line6->message_length = done;

sound/usb/line6/midibuf.c

@@ -163,7 +163,7 @@ int line6_midibuf_read(struct midi_buffer *this, unsigned char *data,
 			int midi_length_prev =
 			    midibuf_message_length(this->command_prev);
 
-			if (midi_length_prev > 0) {
+			if (midi_length_prev > 1) {
 				midi_length = midi_length_prev - 1;
 				repeat = 1;
 			} else