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SubjectRe: Linux 4.19.113
diff --git a/Makefile b/Makefile
index bd57e085188d..61bfe5519a16 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
VERSION = 4
PATCHLEVEL = 19
-SUBLEVEL = 112
+SUBLEVEL = 113
EXTRAVERSION =
NAME = "People's Front"

diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi
index 7ce24b282d42..c1ef3201950a 100644
--- a/arch/arm/boot/dts/dra7.dtsi
+++ b/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>;
diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c
index 52aa51f6310b..716810a08f24 100644
--- a/arch/arm64/kernel/smp.c
+++ b/arch/arm64/kernel/smp.c
@@ -936,11 +936,22 @@ 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);
@@ -953,10 +964,10 @@ 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));

@@ -979,7 +990,11 @@ 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;
}
@@ -987,7 +1002,7 @@ 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);
diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S
index fd35eddf3266..d081d726ca8e 100644
--- a/arch/powerpc/kernel/vmlinux.lds.S
+++ b/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))
diff --git a/arch/riscv/kernel/module.c b/arch/riscv/kernel/module.c
index 7dd308129b40..7c012ad1d7ed 100644
--- a/arch/riscv/kernel/module.c
+++ b/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
diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index 72e6fa1a913c..c61acf63529f 100644
--- a/arch/x86/mm/fault.c
+++ b/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 @@ static void dump_pagetable(unsigned long address)

#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:
*
diff --git a/block/bfq-cgroup.c b/block/bfq-cgroup.c
index 9fe5952d117d..ecd3d0ec2f3b 100644
--- a/block/bfq-cgroup.c
+++ b/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);
- if (bfqg != bfqd->root_group) {
- parent = bfqg_parent(bfqg);
+ struct bfq_group *curr_bfqg = container_of(entity,
+ struct bfq_group, entity);
+ 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);
}
}

diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c
index 73177b8a07bd..be6d233fdb9f 100644
--- a/drivers/acpi/apei/ghes.c
+++ b/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);
}
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
index 65cecfdd9b45..a90e83e5ab57 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
+++ b/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;
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
index c85bea70d965..ad9561853d8e 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
+++ b/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);
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubbub.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubbub.c
index 1ea91e153d3a..c1adac888fd8 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubbub.c
+++ b/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_vert_wc = width * blk256_width * bpe;
+ swath_bytes_horz_wc = width * blk256_height * bpe;
+ swath_bytes_vert_wc = height * blk256_width * bpe;

*req128_horz_wc = (2 * swath_bytes_horz_wc <= detile_buf_size) ?
false : /* full 256B request */
diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
index 2a0a1654d3ce..6930452a712a 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
+++ b/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) {
- case V4L2_YCBCR_ENC_601:
- if (hdmi->hdmi_data.enc_in_encoding == V4L2_YCBCR_ENC_XV601)
- frame.colorimetry = HDMI_COLORIMETRY_EXTENDED;
- else
+ if (!hdmi_bus_fmt_is_rgb(hdmi->hdmi_data.enc_out_bus_format)) {
+ switch (hdmi->hdmi_data.enc_out_encoding) {
+ case V4L2_YCBCR_ENC_601:
+ if (hdmi->hdmi_data.enc_in_encoding == V4L2_YCBCR_ENC_XV601)
+ 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;
- 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;
+ HDMI_EXTENDED_COLORIMETRY_XV_YCC_601;
}

frame.scan_mode = HDMI_SCAN_MODE_NONE;
diff --git a/drivers/gpu/drm/drm_lease.c b/drivers/gpu/drm/drm_lease.c
index 086f2adc541b..19e9935c2e43 100644
--- a/drivers/gpu/drm/drm_lease.c
+++ b/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 @@ int drm_mode_create_lease_ioctl(struct drm_device *dev,

out_leases:
put_unused_fd(fd);
- idr_destroy(&leases);

DRM_DEBUG_LEASE("drm_mode_create_lease_ioctl failed: %d\n", ret);
return ret;
diff --git a/drivers/gpu/drm/exynos/exynos_drm_dsi.c b/drivers/gpu/drm/exynos/exynos_drm_dsi.c
index 781b82c2c579..8d776070913d 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_dsi.c
+++ b/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);
- return -EPROBE_DEFER;
+ if (ret != -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);
- i--;
- continue;
+ dsi->clks[i] = devm_clk_get(dev,
+ OLD_SCLK_MIPI_CLK_NAME);
+ if (!IS_ERR(dsi->clks[i]))
+ continue;
}

dev_info(dev, "failed to get the clock: %s\n",
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
index b86ee7d25af3..eac9caf322f9 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
+++ b/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,
- struct drm_plane *cursor, unsigned int pipe)
+ 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],
- mtk_crtc->layer_nr > 1 ? &mtk_crtc->planes[1] :
- NULL, pipe);
+ ret = mtk_drm_crtc_init(drm_dev, mtk_crtc, pipe);
if (ret < 0)
goto unprepare;
drm_mode_crtc_set_gamma_size(&mtk_crtc->base, MTK_LUT_SIZE);
diff --git a/drivers/hwtracing/intel_th/msu.c b/drivers/hwtracing/intel_th/msu.c
index 3cdf85b1ce4f..ecfe7a43c151 100644
--- a/drivers/hwtracing/intel_th/msu.c
+++ b/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:
diff --git a/drivers/hwtracing/intel_th/pci.c b/drivers/hwtracing/intel_th/pci.c
index e63a0c24e76b..8424c8c61355 100644
--- a/drivers/hwtracing/intel_th/pci.c
+++ b/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),
diff --git a/drivers/iio/accel/st_accel_i2c.c b/drivers/iio/accel/st_accel_i2c.c
index 2ca5d1f6ade0..b314ef878d2f 100644
--- a/drivers/iio/accel/st_accel_i2c.c
+++ b/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},
{ },
};
diff --git a/drivers/iio/adc/at91-sama5d2_adc.c b/drivers/iio/adc/at91-sama5d2_adc.c
index d5ea84cf6460..c485ff6f408b 100644
--- a/drivers/iio/adc/at91-sama5d2_adc.c
+++ b/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));
diff --git a/drivers/iio/light/vcnl4000.c b/drivers/iio/light/vcnl4000.c
index 04fd0d4b6f19..d3d65ecb30a5 100644
--- a/drivers/iio/light/vcnl4000.c
+++ b/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. */
- data->vcnl4200_al.sampling_rate = ktime_set(0, 54000 * 1000);
- data->vcnl4200_ps.sampling_rate = ktime_set(0, 4200 * 1000);
+ /* Default wait time is 50ms, add 20% tolerance. */
+ data->vcnl4200_al.sampling_rate = ktime_set(0, 60000 * 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);
diff --git a/drivers/iio/magnetometer/ak8974.c b/drivers/iio/magnetometer/ak8974.c
index 93be1f4c0f27..806a3185b66d 100644
--- a/drivers/iio/magnetometer/ak8974.c
+++ b/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;
}
diff --git a/drivers/iio/trigger/stm32-timer-trigger.c b/drivers/iio/trigger/stm32-timer-trigger.c
index ccf1ce653b25..7722745e101f 100644
--- a/drivers/iio/trigger/stm32-timer-trigger.c
+++ b/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)
diff --git a/drivers/md/dm-bio-record.h b/drivers/md/dm-bio-record.h
index c82578af56a5..2ea0360108e1 100644
--- a/drivers/md/dm-bio-record.h
+++ b/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
diff --git a/drivers/md/dm-integrity.c b/drivers/md/dm-integrity.c
index 5885239cc1f8..d75a4ce7d12a 100644
--- a/drivers/md/dm-integrity.c
+++ b/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;
- 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 dm_bio_details bio_details;
};

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;
- bio->bi_disk = dio->orig_bi_disk;
- bio->bi_partno = dio->orig_bi_partno;
- if (dio->orig_bi_integrity) {
- bio->bi_integrity = dio->orig_bi_integrity;
+ dm_bio_restore(&dio->bio_details, bio);
+ if (bio->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 @@ static void integrity_metadata(struct work_struct *w)
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 @@ static void dm_integrity_map_continue(struct dm_integrity_io *dio, bool from_map
} else
dio->completion = NULL;

- dio->orig_bi_iter = bio->bi_iter;
-
- dio->orig_bi_disk = bio->bi_disk;
- dio->orig_bi_partno = bio->bi_partno;
+ dm_bio_record(&dio->bio_details, bio);
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) {
diff --git a/drivers/misc/altera-stapl/altera.c b/drivers/misc/altera-stapl/altera.c
index d2ed3b9728b7..94bde09d9323 100644
--- a/drivers/misc/altera-stapl/altera.c
+++ b/drivers/misc/altera-stapl/altera.c
@@ -2126,8 +2126,8 @@ static int altera_execute(struct altera_state *astate,
return status;
}

-static int altera_get_note(u8 *p, s32 program_size,
- s32 *offset, char *key, char *value, int length)
+static int altera_get_note(u8 *p, s32 program_size, s32 *offset,
+ 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);
}
diff --git a/drivers/misc/cardreader/rts5227.c b/drivers/misc/cardreader/rts5227.c
index 024dcba8d6c8..13645be5f3b5 100644
--- a/drivers/misc/cardreader/rts5227.c
+++ b/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;
}
diff --git a/drivers/misc/cardreader/rts5249.c b/drivers/misc/cardreader/rts5249.c
index dbe013abdb83..45cd75041d60 100644
--- a/drivers/misc/cardreader/rts5249.c
+++ b/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;
diff --git a/drivers/misc/cardreader/rts5260.c b/drivers/misc/cardreader/rts5260.c
index a493b01c5bc6..958b19f7ce52 100644
--- a/drivers/misc/cardreader/rts5260.c
+++ b/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);
diff --git a/drivers/mmc/host/rtsx_pci_sdmmc.c b/drivers/mmc/host/rtsx_pci_sdmmc.c
index 30bd8081307e..02de6a5701d6 100644
--- a/drivers/mmc/host/rtsx_pci_sdmmc.c
+++ b/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);
diff --git a/drivers/mmc/host/sdhci-of-at91.c b/drivers/mmc/host/sdhci-of-at91.c
index 04e88d4796fa..8cd1794768ba 100644
--- a/drivers/mmc/host/sdhci-of-at91.c
+++ b/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);
diff --git a/drivers/net/vrf.c b/drivers/net/vrf.c
index 7f5ee6bb4430..9f895083bc0a 100644
--- a/drivers/net/vrf.c
+++ b/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 is_ndisc = ipv6_ndisc_frame(skb);
+ bool need_strict;

- /* loopback, multicast & non-ND link-local traffic; do not push through
- * packet taps again. Reset pkt_type for upper layers to process skb
+ /* loopback traffic; do not push through packet taps again.
+ * 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 (!is_ndisc) {
+ /* if packet is NDISC or addressed to multicast or link-local
+ * 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;
diff --git a/drivers/perf/arm_pmu_acpi.c b/drivers/perf/arm_pmu_acpi.c
index 0f197516d708..9a6f7f822566 100644
--- a/drivers/perf/arm_pmu_acpi.c
+++ b/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)
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 7d7be60a2413..28a4505a1bc8 100644
--- a/drivers/rtc/Kconfig
+++ b/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.
diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c
index 525388126e26..e4482823d8d7 100644
--- a/drivers/spi/spi-pxa2xx.c
+++ b/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)
diff --git a/drivers/spi/spi-qup.c b/drivers/spi/spi-qup.c
index 974a8ce58b68..cb74fd1af205 100644
--- a/drivers/spi/spi-qup.c
+++ b/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->iclk);
- }
+ clk_disable_unprepare(controller->cclk);
+ clk_disable_unprepare(controller->iclk);
return 0;
}

diff --git a/drivers/spi/spi-zynqmp-gqspi.c b/drivers/spi/spi-zynqmp-gqspi.c
index cc4d31033494..f2848c59b0b8 100644
--- a/drivers/spi/spi-zynqmp-gqspi.c
+++ b/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) |
diff --git a/drivers/staging/greybus/tools/loopback_test.c b/drivers/staging/greybus/tools/loopback_test.c
index b82e2befe935..1452df84e2b7 100644
--- a/drivers/staging/greybus/tools/loopback_test.c
+++ b/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 debugfs_prefix[MAX_SYSFS_PATH];
+ char sysfs_prefix[MAX_SYSFS_PREFIX];
+ 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 @@ int find_loopback_devices(struct loopback_test *t)
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)
diff --git a/drivers/staging/rtl8188eu/os_dep/usb_intf.c b/drivers/staging/rtl8188eu/os_dep/usb_intf.c
index 4b363112fa97..adf2937e395b 100644
--- a/drivers/staging/rtl8188eu/os_dep/usb_intf.c
+++ b/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 */
diff --git a/drivers/staging/speakup/main.c b/drivers/staging/speakup/main.c
index 869f40ebf1a7..d4a74f7ddf6b 100644
--- a/drivers/staging/speakup/main.c
+++ b/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 {
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 59675cc7aa01..8689bf7ba60f 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/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 ((close_delay != acm->port.close_delay) ||
- (closing_wait != acm->port.closing_wait))
+ if ((new_serial.close_delay != old_close_delay) ||
+ (new_serial.closing_wait != old_closing_wait)) {
+ if (!capable(CAP_SYS_ADMIN))
retval = -EPERM;
- else
- retval = -EOPNOTSUPP;
- } else {
- acm->port.close_delay = close_delay;
- acm->port.closing_wait = closing_wait;
- }
+ else {
+ acm->port.close_delay = close_delay;
+ acm->port.closing_wait = closing_wait;
+ }
+ } else
+ retval = -EOPNOTSUPP;

mutex_unlock(&acm->port.mutex);
return retval;
diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
index 2dac3e7cdd97..da30b5664ff3 100644
--- a/drivers/usb/core/quirks.c
+++ b/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 },
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index 58cf551a1246..d87f48e6b0c7 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/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;
diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c
index e5da8ce62914..9602241e4371 100644
--- a/drivers/usb/host/xhci-plat.c
+++ b/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,
diff --git a/drivers/usb/host/xhci-trace.h b/drivers/usb/host/xhci-trace.h
index 88b427434bd8..bc17128208a9 100644
--- a/drivers/usb/host/xhci-trace.h
+++ b/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;
- switch (__entry->type) {
- case USB_ENDPOINT_XFER_INT:
- s = "intr";
- break;
- case USB_ENDPOINT_XFER_CONTROL:
- 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,
+ __print_symbolic(__entry->type,
+ { USB_ENDPOINT_XFER_INT, "intr" },
+ { USB_ENDPOINT_XFER_CONTROL, "control" },
+ { USB_ENDPOINT_XFER_BULK, "bulk" },
+ { USB_ENDPOINT_XFER_ISOC, "isoc" }),
+ __entry->urb, __entry->pipe, __entry->slot_id,
__entry->actual, __entry->length, __entry->num_mapped_sgs,
__entry->num_sgs, __entry->stream, __entry->flags
)
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 5b2e246f99da..1d4c370d44fe 100644
--- a/drivers/usb/serial/option.c
+++ b/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),
diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c
index 5d7b21ea6238..7751b94ac7f5 100644
--- a/drivers/usb/serial/pl2303.c
+++ b/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) },
diff --git a/drivers/usb/serial/pl2303.h b/drivers/usb/serial/pl2303.h
index b0175f17d1a2..c98db6b650a5 100644
--- a/drivers/usb/serial/pl2303.h
+++ b/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
diff --git a/drivers/xen/xenbus/xenbus_comms.c b/drivers/xen/xenbus/xenbus_comms.c
index d239fc3c5e3d..eb5151fc8efa 100644
--- a/drivers/xen/xenbus/xenbus_comms.c
+++ b/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);
}
diff --git a/drivers/xen/xenbus/xenbus_xs.c b/drivers/xen/xenbus/xenbus_xs.c
index ddc18da61834..3a06eb699f33 100644
--- a/drivers/xen/xenbus/xenbus_xs.c
+++ b/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;
}
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index dec508a28ffa..c69e5b255745 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -10015,6 +10015,10 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry,
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);
diff --git a/fs/inode.c b/fs/inode.c
index 9c50521c9fe4..c9eb5041ffae 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -136,6 +136,7 @@ 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;
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 92420009b9bc..15b8e02880c3 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -663,6 +663,7 @@ 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;
diff --git a/include/linux/futex.h b/include/linux/futex.h
index ccaef0097785..a61bf436dcf3 100644
--- a/include/linux/futex.h
+++ b/include/linux/futex.h
@@ -29,23 +29,26 @@ struct task_struct;

union futex_key {
struct {
+ u64 i_seq;
unsigned long pgoff;
- struct inode *inode;
- int offset;
+ unsigned int offset;
} shared;
struct {
+ union {
+ struct mm_struct *mm;
+ u64 __tmp;
+ };
unsigned long address;
- struct mm_struct *mm;
- int offset;
+ unsigned int offset;
} private;
struct {
+ u64 ptr;
unsigned long word;
- void *ptr;
- int offset;
+ unsigned 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);
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index 3f066ce63a63..f6e9433663a9 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -271,7 +271,7 @@ 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)
diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h
index 398e9c95cd61..6ae8dd1d784f 100644
--- a/include/linux/vmalloc.h
+++ b/include/linux/vmalloc.h
@@ -107,8 +107,9 @@ 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!)
*/
diff --git a/kernel/futex.c b/kernel/futex.c
index e75ad30aa7bc..920d853a8e9e 100644
--- a/kernel/futex.c
+++ b/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,
- (sizeof(key->both.word)+sizeof(key->both.ptr))/4,
+ u32 hash = jhash2((u32 *)key, offsetof(typeof(*key), both.offset) / 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),
- * offset_within_page). For private mappings, it's (uaddr, current->mm).
- * We can usually work out the index without swapping in the page.
+ * For shared mappings (when @fshared), the key is:
+ * ( inode->i_sequence, page->index, offset_within_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 @@ get_futex_key(u32 __user *uaddr, int fshared, union futex_key *key, int rw)
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 @@ get_futex_key(u32 __user *uaddr, int fshared, union futex_key *key, int rw)
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;
diff --git a/kernel/notifier.c b/kernel/notifier.c
index 6196af8a8223..59a1e9b48a6a 100644
--- a/kernel/notifier.c
+++ b/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);
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 6ecb47c08665..3b78b6af353b 100644
--- a/mm/memcontrol.c
+++ b/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);
diff --git a/mm/nommu.c b/mm/nommu.c
index 1d63ecfc98c5..86e1da96bc13 100644
--- a/mm/nommu.c
+++ b/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
- * have one.
+ * Implement a stub for vmalloc_sync_[un]mapping() if the architecture
+ * chose not to have one.
*/
-void __weak vmalloc_sync_all(void)
+void __weak vmalloc_sync_mappings(void)
+{
+}
+
+void __weak vmalloc_sync_unmappings(void)
{
}

diff --git a/mm/slub.c b/mm/slub.c
index 764a1023ed87..9b7b989273d4 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -1906,8 +1906,6 @@ 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)
@@ -2504,17 +2502,27 @@ 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;
-
- if (node != NUMA_NO_NODE && !node_present_pages(node))
- searchnode = node_to_mem_node(node);
-
- if (unlikely(!node_match(page, searchnode))) {
+ /*
+ * same as above but node_match() being false already
+ * implies node != NUMA_NO_NODE
+ */
+ if (!node_state(node, N_NORMAL_MEMORY)) {
+ node = NUMA_NO_NODE;
+ goto redo;
+ } else {
stat(s, ALLOC_NODE_MISMATCH);
deactivate_slab(s, page, c->freelist, c);
goto new_slab;
@@ -2926,11 +2934,13 @@ static __always_inline void do_slab_free(struct kmem_cache *s,
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);
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index d8e877365f9f..958d6ba9ee2d 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -1755,7 +1755,7 @@ 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
@@ -2300,16 +2300,19 @@ 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
- * have one.
+ * Implement stubs for vmalloc_sync_[un]mappings () if the architecture chose
+ * 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)
{
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index c5f4e89b6ff3..7b0c2498f461 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/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);

diff --git a/scripts/Makefile.extrawarn b/scripts/Makefile.extrawarn
index 8d5357053f86..486e135d3e30 100644
--- a/scripts/Makefile.extrawarn
+++ b/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
diff --git a/scripts/parse-maintainers.pl b/scripts/parse-maintainers.pl
old mode 100644
new mode 100755
diff --git a/sound/core/oss/pcm_plugin.c b/sound/core/oss/pcm_plugin.c
index 31cb2acf8afc..732bbede7ebf 100644
--- a/sound/core/oss/pcm_plugin.c
+++ b/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);
diff --git a/sound/core/seq/oss/seq_oss_midi.c b/sound/core/seq/oss/seq_oss_midi.c
index 0d5f8b16d057..b7bef25b34cc 100644
--- a/sound/core/seq/oss/seq_oss_midi.c
+++ b/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)
diff --git a/sound/core/seq/seq_virmidi.c b/sound/core/seq/seq_virmidi.c
index cb988efd1ed0..af9af89a44d4 100644
--- a/sound/core/seq/seq_virmidi.c
+++ b/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)
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 86ab022f386e..23aab2fdac46 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/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;
diff --git a/sound/usb/line6/driver.c b/sound/usb/line6/driver.c
index bbcb0d4d83ae..0193d4989107 100644
--- a/sound/usb/line6/driver.c
+++ b/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;
diff --git a/sound/usb/line6/midibuf.c b/sound/usb/line6/midibuf.c
index 36a610ba342e..c931d48801eb 100644
--- a/sound/usb/line6/midibuf.c
+++ b/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
\
 
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  Last update: 2020-03-25 18:44    [W:0.077 / U:1.936 seconds]
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