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SubjectRe: Linux 5.0.2
diff --git a/Makefile b/Makefile
index 3cd7163fe164..bb2f7664594a 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
VERSION = 5
PATCHLEVEL = 0
-SUBLEVEL = 1
+SUBLEVEL = 2
EXTRAVERSION =
NAME = Shy Crocodile

diff --git a/arch/arm/boot/dts/exynos3250.dtsi b/arch/arm/boot/dts/exynos3250.dtsi
index 608d17454179..5892a9f7622f 100644
--- a/arch/arm/boot/dts/exynos3250.dtsi
+++ b/arch/arm/boot/dts/exynos3250.dtsi
@@ -168,6 +168,9 @@
interrupt-controller;
#interrupt-cells = <3>;
interrupt-parent = <&gic>;
+ clock-names = "clkout8";
+ clocks = <&cmu CLK_FIN_PLL>;
+ #clock-cells = <1>;
};

mipi_phy: video-phy {
diff --git a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi
index 3a9eb1e91c45..8a64c4e8c474 100644
--- a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi
+++ b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi
@@ -49,7 +49,7 @@
};

emmc_pwrseq: pwrseq {
- pinctrl-0 = <&sd1_cd>;
+ pinctrl-0 = <&emmc_rstn>;
pinctrl-names = "default";
compatible = "mmc-pwrseq-emmc";
reset-gpios = <&gpk1 2 GPIO_ACTIVE_LOW>;
@@ -165,12 +165,6 @@
cpu0-supply = <&buck2_reg>;
};

-/* RSTN signal for eMMC */
-&sd1_cd {
- samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
- samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
-};
-
&pinctrl_1 {
gpio_power_key: power_key {
samsung,pins = "gpx1-3";
@@ -188,6 +182,11 @@
samsung,pins = "gpx3-7";
samsung,pin-pud = <EXYNOS_PIN_PULL_DOWN>;
};
+
+ emmc_rstn: emmc-rstn {
+ samsung,pins = "gpk1-2";
+ samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
+ };
};

&ehci {
diff --git a/arch/arm/boot/dts/exynos5422-odroid-core.dtsi b/arch/arm/boot/dts/exynos5422-odroid-core.dtsi
index bf09eab90f8a..6bf3661293ee 100644
--- a/arch/arm/boot/dts/exynos5422-odroid-core.dtsi
+++ b/arch/arm/boot/dts/exynos5422-odroid-core.dtsi
@@ -468,7 +468,7 @@
buck8_reg: BUCK8 {
regulator-name = "vdd_1.8v_ldo";
regulator-min-microvolt = <800000>;
- regulator-max-microvolt = <1500000>;
+ regulator-max-microvolt = <2000000>;
regulator-always-on;
regulator-boot-on;
};
diff --git a/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts b/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts
index 610235028cc7..c14205cd6bf5 100644
--- a/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts
+++ b/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts
@@ -118,6 +118,7 @@
reset-gpios = <&gpio0 5 GPIO_ACTIVE_LOW>;
clocks = <&pmic>;
clock-names = "ext_clock";
+ post-power-on-delay-ms = <10>;
power-off-delay-us = <10>;
};

@@ -300,7 +301,6 @@

dwmmc_0: dwmmc0@f723d000 {
cap-mmc-highspeed;
- mmc-hs200-1_8v;
non-removable;
bus-width = <0x8>;
vmmc-supply = <&ldo19>;
diff --git a/arch/arm64/boot/dts/xilinx/zynqmp-zcu100-revC.dts b/arch/arm64/boot/dts/xilinx/zynqmp-zcu100-revC.dts
index 13a0a028df98..e5699d0d91e4 100644
--- a/arch/arm64/boot/dts/xilinx/zynqmp-zcu100-revC.dts
+++ b/arch/arm64/boot/dts/xilinx/zynqmp-zcu100-revC.dts
@@ -101,6 +101,7 @@
sdio_pwrseq: sdio-pwrseq {
compatible = "mmc-pwrseq-simple";
reset-gpios = <&gpio 7 GPIO_ACTIVE_LOW>; /* WIFI_EN */
+ post-power-on-delay-ms = <10>;
};
};

diff --git a/arch/x86/events/core.c b/arch/x86/events/core.c
index b684f0294f35..e2b1447192a8 100644
--- a/arch/x86/events/core.c
+++ b/arch/x86/events/core.c
@@ -1995,7 +1995,7 @@ static int x86_pmu_commit_txn(struct pmu *pmu)
*/
static void free_fake_cpuc(struct cpu_hw_events *cpuc)
{
- kfree(cpuc->shared_regs);
+ intel_cpuc_finish(cpuc);
kfree(cpuc);
}

@@ -2007,14 +2007,11 @@ static struct cpu_hw_events *allocate_fake_cpuc(void)
cpuc = kzalloc(sizeof(*cpuc), GFP_KERNEL);
if (!cpuc)
return ERR_PTR(-ENOMEM);
-
- /* only needed, if we have extra_regs */
- if (x86_pmu.extra_regs) {
- cpuc->shared_regs = allocate_shared_regs(cpu);
- if (!cpuc->shared_regs)
- goto error;
- }
cpuc->is_fake = 1;
+
+ if (intel_cpuc_prepare(cpuc, cpu))
+ goto error;
+
return cpuc;
error:
free_fake_cpuc(cpuc);
diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c
index 730978dff63f..dadb8f7e5a0d 100644
--- a/arch/x86/events/intel/core.c
+++ b/arch/x86/events/intel/core.c
@@ -1999,6 +1999,39 @@ static void intel_pmu_nhm_enable_all(int added)
intel_pmu_enable_all(added);
}

+static void intel_set_tfa(struct cpu_hw_events *cpuc, bool on)
+{
+ u64 val = on ? MSR_TFA_RTM_FORCE_ABORT : 0;
+
+ if (cpuc->tfa_shadow != val) {
+ cpuc->tfa_shadow = val;
+ wrmsrl(MSR_TSX_FORCE_ABORT, val);
+ }
+}
+
+static void intel_tfa_commit_scheduling(struct cpu_hw_events *cpuc, int idx, int cntr)
+{
+ /*
+ * We're going to use PMC3, make sure TFA is set before we touch it.
+ */
+ if (cntr == 3 && !cpuc->is_fake)
+ intel_set_tfa(cpuc, true);
+}
+
+static void intel_tfa_pmu_enable_all(int added)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+
+ /*
+ * If we find PMC3 is no longer used when we enable the PMU, we can
+ * clear TFA.
+ */
+ if (!test_bit(3, cpuc->active_mask))
+ intel_set_tfa(cpuc, false);
+
+ intel_pmu_enable_all(added);
+}
+
static void enable_counter_freeze(void)
{
update_debugctlmsr(get_debugctlmsr() |
@@ -2768,6 +2801,35 @@ intel_stop_scheduling(struct cpu_hw_events *cpuc)
raw_spin_unlock(&excl_cntrs->lock);
}

+static struct event_constraint *
+dyn_constraint(struct cpu_hw_events *cpuc, struct event_constraint *c, int idx)
+{
+ WARN_ON_ONCE(!cpuc->constraint_list);
+
+ if (!(c->flags & PERF_X86_EVENT_DYNAMIC)) {
+ struct event_constraint *cx;
+
+ /*
+ * grab pre-allocated constraint entry
+ */
+ cx = &cpuc->constraint_list[idx];
+
+ /*
+ * initialize dynamic constraint
+ * with static constraint
+ */
+ *cx = *c;
+
+ /*
+ * mark constraint as dynamic
+ */
+ cx->flags |= PERF_X86_EVENT_DYNAMIC;
+ c = cx;
+ }
+
+ return c;
+}
+
static struct event_constraint *
intel_get_excl_constraints(struct cpu_hw_events *cpuc, struct perf_event *event,
int idx, struct event_constraint *c)
@@ -2798,27 +2860,7 @@ intel_get_excl_constraints(struct cpu_hw_events *cpuc, struct perf_event *event,
* only needed when constraint has not yet
* been cloned (marked dynamic)
*/
- if (!(c->flags & PERF_X86_EVENT_DYNAMIC)) {
- struct event_constraint *cx;
-
- /*
- * grab pre-allocated constraint entry
- */
- cx = &cpuc->constraint_list[idx];
-
- /*
- * initialize dynamic constraint
- * with static constraint
- */
- *cx = *c;
-
- /*
- * mark constraint as dynamic, so we
- * can free it later on
- */
- cx->flags |= PERF_X86_EVENT_DYNAMIC;
- c = cx;
- }
+ c = dyn_constraint(cpuc, c, idx);

/*
* From here on, the constraint is dynamic.
@@ -3345,6 +3387,26 @@ glp_get_event_constraints(struct cpu_hw_events *cpuc, int idx,
return c;
}

+static bool allow_tsx_force_abort = true;
+
+static struct event_constraint *
+tfa_get_event_constraints(struct cpu_hw_events *cpuc, int idx,
+ struct perf_event *event)
+{
+ struct event_constraint *c = hsw_get_event_constraints(cpuc, idx, event);
+
+ /*
+ * Without TFA we must not use PMC3.
+ */
+ if (!allow_tsx_force_abort && test_bit(3, c->idxmsk)) {
+ c = dyn_constraint(cpuc, c, idx);
+ c->idxmsk64 &= ~(1ULL << 3);
+ c->weight--;
+ }
+
+ return c;
+}
+
/*
* Broadwell:
*
@@ -3398,7 +3460,7 @@ ssize_t intel_event_sysfs_show(char *page, u64 config)
return x86_event_sysfs_show(page, config, event);
}

-struct intel_shared_regs *allocate_shared_regs(int cpu)
+static struct intel_shared_regs *allocate_shared_regs(int cpu)
{
struct intel_shared_regs *regs;
int i;
@@ -3430,23 +3492,24 @@ static struct intel_excl_cntrs *allocate_excl_cntrs(int cpu)
return c;
}

-static int intel_pmu_cpu_prepare(int cpu)
-{
- struct cpu_hw_events *cpuc = &per_cpu(cpu_hw_events, cpu);

+int intel_cpuc_prepare(struct cpu_hw_events *cpuc, int cpu)
+{
if (x86_pmu.extra_regs || x86_pmu.lbr_sel_map) {
cpuc->shared_regs = allocate_shared_regs(cpu);
if (!cpuc->shared_regs)
goto err;
}

- if (x86_pmu.flags & PMU_FL_EXCL_CNTRS) {
+ if (x86_pmu.flags & (PMU_FL_EXCL_CNTRS | PMU_FL_TFA)) {
size_t sz = X86_PMC_IDX_MAX * sizeof(struct event_constraint);

- cpuc->constraint_list = kzalloc(sz, GFP_KERNEL);
+ cpuc->constraint_list = kzalloc_node(sz, GFP_KERNEL, cpu_to_node(cpu));
if (!cpuc->constraint_list)
goto err_shared_regs;
+ }

+ if (x86_pmu.flags & PMU_FL_EXCL_CNTRS) {
cpuc->excl_cntrs = allocate_excl_cntrs(cpu);
if (!cpuc->excl_cntrs)
goto err_constraint_list;
@@ -3468,6 +3531,11 @@ static int intel_pmu_cpu_prepare(int cpu)
return -ENOMEM;
}

+static int intel_pmu_cpu_prepare(int cpu)
+{
+ return intel_cpuc_prepare(&per_cpu(cpu_hw_events, cpu), cpu);
+}
+
static void flip_smm_bit(void *data)
{
unsigned long set = *(unsigned long *)data;
@@ -3542,9 +3610,8 @@ static void intel_pmu_cpu_starting(int cpu)
}
}

-static void free_excl_cntrs(int cpu)
+static void free_excl_cntrs(struct cpu_hw_events *cpuc)
{
- struct cpu_hw_events *cpuc = &per_cpu(cpu_hw_events, cpu);
struct intel_excl_cntrs *c;

c = cpuc->excl_cntrs;
@@ -3552,9 +3619,10 @@ static void free_excl_cntrs(int cpu)
if (c->core_id == -1 || --c->refcnt == 0)
kfree(c);
cpuc->excl_cntrs = NULL;
- kfree(cpuc->constraint_list);
- cpuc->constraint_list = NULL;
}
+
+ kfree(cpuc->constraint_list);
+ cpuc->constraint_list = NULL;
}

static void intel_pmu_cpu_dying(int cpu)
@@ -3565,9 +3633,8 @@ static void intel_pmu_cpu_dying(int cpu)
disable_counter_freeze();
}

-static void intel_pmu_cpu_dead(int cpu)
+void intel_cpuc_finish(struct cpu_hw_events *cpuc)
{
- struct cpu_hw_events *cpuc = &per_cpu(cpu_hw_events, cpu);
struct intel_shared_regs *pc;

pc = cpuc->shared_regs;
@@ -3577,7 +3644,12 @@ static void intel_pmu_cpu_dead(int cpu)
cpuc->shared_regs = NULL;
}

- free_excl_cntrs(cpu);
+ free_excl_cntrs(cpuc);
+}
+
+static void intel_pmu_cpu_dead(int cpu)
+{
+ intel_cpuc_finish(&per_cpu(cpu_hw_events, cpu));
}

static void intel_pmu_sched_task(struct perf_event_context *ctx,
@@ -4070,8 +4142,11 @@ static struct attribute *intel_pmu_caps_attrs[] = {
NULL
};

+DEVICE_BOOL_ATTR(allow_tsx_force_abort, 0644, allow_tsx_force_abort);
+
static struct attribute *intel_pmu_attrs[] = {
&dev_attr_freeze_on_smi.attr,
+ NULL, /* &dev_attr_allow_tsx_force_abort.attr.attr */
NULL,
};

@@ -4564,6 +4639,15 @@ __init int intel_pmu_init(void)
tsx_attr = hsw_tsx_events_attrs;
intel_pmu_pebs_data_source_skl(
boot_cpu_data.x86_model == INTEL_FAM6_SKYLAKE_X);
+
+ if (boot_cpu_has(X86_FEATURE_TSX_FORCE_ABORT)) {
+ x86_pmu.flags |= PMU_FL_TFA;
+ x86_pmu.get_event_constraints = tfa_get_event_constraints;
+ x86_pmu.enable_all = intel_tfa_pmu_enable_all;
+ x86_pmu.commit_scheduling = intel_tfa_commit_scheduling;
+ intel_pmu_attrs[1] = &dev_attr_allow_tsx_force_abort.attr.attr;
+ }
+
pr_cont("Skylake events, ");
name = "skylake";
break;
@@ -4715,7 +4799,7 @@ static __init int fixup_ht_bug(void)
hardlockup_detector_perf_restart();

for_each_online_cpu(c)
- free_excl_cntrs(c);
+ free_excl_cntrs(&per_cpu(cpu_hw_events, c));

cpus_read_unlock();
pr_info("PMU erratum BJ122, BV98, HSD29 workaround disabled, HT off\n");
diff --git a/arch/x86/events/perf_event.h b/arch/x86/events/perf_event.h
index d46fd6754d92..a345d079f876 100644
--- a/arch/x86/events/perf_event.h
+++ b/arch/x86/events/perf_event.h
@@ -242,6 +242,11 @@ struct cpu_hw_events {
struct intel_excl_cntrs *excl_cntrs;
int excl_thread_id; /* 0 or 1 */

+ /*
+ * SKL TSX_FORCE_ABORT shadow
+ */
+ u64 tfa_shadow;
+
/*
* AMD specific bits
*/
@@ -681,6 +686,7 @@ do { \
#define PMU_FL_EXCL_CNTRS 0x4 /* has exclusive counter requirements */
#define PMU_FL_EXCL_ENABLED 0x8 /* exclusive counter active */
#define PMU_FL_PEBS_ALL 0x10 /* all events are valid PEBS events */
+#define PMU_FL_TFA 0x20 /* deal with TSX force abort */

#define EVENT_VAR(_id) event_attr_##_id
#define EVENT_PTR(_id) &event_attr_##_id.attr.attr
@@ -889,7 +895,8 @@ struct event_constraint *
x86_get_event_constraints(struct cpu_hw_events *cpuc, int idx,
struct perf_event *event);

-struct intel_shared_regs *allocate_shared_regs(int cpu);
+extern int intel_cpuc_prepare(struct cpu_hw_events *cpuc, int cpu);
+extern void intel_cpuc_finish(struct cpu_hw_events *cpuc);

int intel_pmu_init(void);

@@ -1025,9 +1032,13 @@ static inline int intel_pmu_init(void)
return 0;
}

-static inline struct intel_shared_regs *allocate_shared_regs(int cpu)
+static inline int intel_cpuc_prepare(struct cpu_hw_event *cpuc, int cpu)
+{
+ return 0;
+}
+
+static inline void intel_cpuc_finish(struct cpu_hw_event *cpuc)
{
- return NULL;
}

static inline int is_ht_workaround_enabled(void)
diff --git a/arch/x86/include/asm/cpufeatures.h b/arch/x86/include/asm/cpufeatures.h
index 6d6122524711..981ff9479648 100644
--- a/arch/x86/include/asm/cpufeatures.h
+++ b/arch/x86/include/asm/cpufeatures.h
@@ -344,6 +344,7 @@
/* Intel-defined CPU features, CPUID level 0x00000007:0 (EDX), word 18 */
#define X86_FEATURE_AVX512_4VNNIW (18*32+ 2) /* AVX-512 Neural Network Instructions */
#define X86_FEATURE_AVX512_4FMAPS (18*32+ 3) /* AVX-512 Multiply Accumulation Single precision */
+#define X86_FEATURE_TSX_FORCE_ABORT (18*32+13) /* "" TSX_FORCE_ABORT */
#define X86_FEATURE_PCONFIG (18*32+18) /* Intel PCONFIG */
#define X86_FEATURE_SPEC_CTRL (18*32+26) /* "" Speculation Control (IBRS + IBPB) */
#define X86_FEATURE_INTEL_STIBP (18*32+27) /* "" Single Thread Indirect Branch Predictors */
diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-index.h
index 8e40c2446fd1..ca5bc0eacb95 100644
--- a/arch/x86/include/asm/msr-index.h
+++ b/arch/x86/include/asm/msr-index.h
@@ -666,6 +666,12 @@

#define MSR_IA32_TSC_DEADLINE 0x000006E0

+
+#define MSR_TSX_FORCE_ABORT 0x0000010F
+
+#define MSR_TFA_RTM_FORCE_ABORT_BIT 0
+#define MSR_TFA_RTM_FORCE_ABORT BIT_ULL(MSR_TFA_RTM_FORCE_ABORT_BIT)
+
/* P4/Xeon+ specific */
#define MSR_IA32_MCG_EAX 0x00000180
#define MSR_IA32_MCG_EBX 0x00000181
diff --git a/arch/x86/pci/fixup.c b/arch/x86/pci/fixup.c
index 30a5111ae5fd..527e69b12002 100644
--- a/arch/x86/pci/fixup.c
+++ b/arch/x86/pci/fixup.c
@@ -635,6 +635,22 @@ static void quirk_no_aersid(struct pci_dev *pdev)
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, PCI_ANY_ID,
PCI_CLASS_BRIDGE_PCI, 8, quirk_no_aersid);

+static void quirk_intel_th_dnv(struct pci_dev *dev)
+{
+ struct resource *r = &dev->resource[4];
+
+ /*
+ * Denverton reports 2k of RTIT_BAR (intel_th resource 4), which
+ * appears to be 4 MB in reality.
+ */
+ if (r->end == r->start + 0x7ff) {
+ r->start = 0;
+ r->end = 0x3fffff;
+ r->flags |= IORESOURCE_UNSET;
+ }
+}
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x19e1, quirk_intel_th_dnv);
+
#ifdef CONFIG_PHYS_ADDR_T_64BIT

#define AMD_141b_MMIO_BASE(x) (0x80 + (x) * 0x8)
diff --git a/drivers/firmware/iscsi_ibft.c b/drivers/firmware/iscsi_ibft.c
index 6bc8e6640d71..c51462f5aa1e 100644
--- a/drivers/firmware/iscsi_ibft.c
+++ b/drivers/firmware/iscsi_ibft.c
@@ -542,6 +542,7 @@ static umode_t __init ibft_check_tgt_for(void *data, int type)
case ISCSI_BOOT_TGT_NIC_ASSOC:
case ISCSI_BOOT_TGT_CHAP_TYPE:
rc = S_IRUGO;
+ break;
case ISCSI_BOOT_TGT_NAME:
if (tgt->tgt_name_len)
rc = S_IRUGO;
diff --git a/drivers/input/mouse/elan_i2c_core.c b/drivers/input/mouse/elan_i2c_core.c
index 225ae6980182..628ef617bb2f 100644
--- a/drivers/input/mouse/elan_i2c_core.c
+++ b/drivers/input/mouse/elan_i2c_core.c
@@ -1337,6 +1337,7 @@ static const struct acpi_device_id elan_acpi_id[] = {
{ "ELAN0000", 0 },
{ "ELAN0100", 0 },
{ "ELAN0600", 0 },
+ { "ELAN0601", 0 },
{ "ELAN0602", 0 },
{ "ELAN0605", 0 },
{ "ELAN0608", 0 },
diff --git a/drivers/input/tablet/wacom_serial4.c b/drivers/input/tablet/wacom_serial4.c
index 38bfaca48eab..150f9eecaca7 100644
--- a/drivers/input/tablet/wacom_serial4.c
+++ b/drivers/input/tablet/wacom_serial4.c
@@ -187,6 +187,7 @@ enum {
MODEL_DIGITIZER_II = 0x5544, /* UD */
MODEL_GRAPHIRE = 0x4554, /* ET */
MODEL_PENPARTNER = 0x4354, /* CT */
+ MODEL_ARTPAD_II = 0x4B54, /* KT */
};

static void wacom_handle_model_response(struct wacom *wacom)
@@ -245,6 +246,7 @@ static void wacom_handle_model_response(struct wacom *wacom)
wacom->flags = F_HAS_STYLUS2 | F_HAS_SCROLLWHEEL;
break;

+ case MODEL_ARTPAD_II:
case MODEL_DIGITIZER_II:
wacom->dev->name = "Wacom Digitizer II";
wacom->dev->id.version = MODEL_DIGITIZER_II;
diff --git a/drivers/media/rc/rc-main.c b/drivers/media/rc/rc-main.c
index 66a174979b3c..81745644f720 100644
--- a/drivers/media/rc/rc-main.c
+++ b/drivers/media/rc/rc-main.c
@@ -274,6 +274,7 @@ static unsigned int ir_update_mapping(struct rc_dev *dev,
unsigned int new_keycode)
{
int old_keycode = rc_map->scan[index].keycode;
+ int i;

/* Did the user wish to remove the mapping? */
if (new_keycode == KEY_RESERVED || new_keycode == KEY_UNKNOWN) {
@@ -288,9 +289,20 @@ static unsigned int ir_update_mapping(struct rc_dev *dev,
old_keycode == KEY_RESERVED ? "New" : "Replacing",
rc_map->scan[index].scancode, new_keycode);
rc_map->scan[index].keycode = new_keycode;
+ __set_bit(new_keycode, dev->input_dev->keybit);
}

if (old_keycode != KEY_RESERVED) {
+ /* A previous mapping was updated... */
+ __clear_bit(old_keycode, dev->input_dev->keybit);
+ /* ... but another scancode might use the same keycode */
+ for (i = 0; i < rc_map->len; i++) {
+ if (rc_map->scan[i].keycode == old_keycode) {
+ __set_bit(old_keycode, dev->input_dev->keybit);
+ break;
+ }
+ }
+
/* Possibly shrink the keytable, failure is not a problem */
ir_resize_table(dev, rc_map, GFP_ATOMIC);
}
@@ -1750,7 +1762,6 @@ static int rc_prepare_rx_device(struct rc_dev *dev)
set_bit(EV_REP, dev->input_dev->evbit);
set_bit(EV_MSC, dev->input_dev->evbit);
set_bit(MSC_SCAN, dev->input_dev->mscbit);
- bitmap_fill(dev->input_dev->keybit, KEY_CNT);

/* Pointer/mouse events */
set_bit(EV_REL, dev->input_dev->evbit);
diff --git a/drivers/media/usb/uvc/uvc_driver.c b/drivers/media/usb/uvc/uvc_driver.c
index b62cbd800111..33a22c016456 100644
--- a/drivers/media/usb/uvc/uvc_driver.c
+++ b/drivers/media/usb/uvc/uvc_driver.c
@@ -1106,11 +1106,19 @@ static int uvc_parse_standard_control(struct uvc_device *dev,
return -EINVAL;
}

- /* Make sure the terminal type MSB is not null, otherwise it
- * could be confused with a unit.
+ /*
+ * Reject invalid terminal types that would cause issues:
+ *
+ * - The high byte must be non-zero, otherwise it would be
+ * confused with a unit.
+ *
+ * - Bit 15 must be 0, as we use it internally as a terminal
+ * direction flag.
+ *
+ * Other unknown types are accepted.
*/
type = get_unaligned_le16(&buffer[4]);
- if ((type & 0xff00) == 0) {
+ if ((type & 0x7f00) == 0 || (type & 0x8000) != 0) {
uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol "
"interface %d INPUT_TERMINAL %d has invalid "
"type 0x%04x, skipping\n", udev->devnum,
diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c
index c070a9e51ebf..fae572b38416 100644
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -636,15 +636,15 @@ static int ath9k_of_init(struct ath_softc *sc)
ret = ath9k_eeprom_request(sc, eeprom_name);
if (ret)
return ret;
+
+ ah->ah_flags &= ~AH_USE_EEPROM;
+ ah->ah_flags |= AH_NO_EEP_SWAP;
}

mac = of_get_mac_address(np);
if (mac)
ether_addr_copy(common->macaddr, mac);

- ah->ah_flags &= ~AH_USE_EEPROM;
- ah->ah_flags |= AH_NO_EEP_SWAP;
-
return 0;
}

diff --git a/drivers/pci/pcie/pme.c b/drivers/pci/pcie/pme.c
index 0dbcf429089f..1a8b85051b1b 100644
--- a/drivers/pci/pcie/pme.c
+++ b/drivers/pci/pcie/pme.c
@@ -432,31 +432,6 @@ static void pcie_pme_remove(struct pcie_device *srv)
kfree(get_service_data(srv));
}

-static int pcie_pme_runtime_suspend(struct pcie_device *srv)
-{
- struct pcie_pme_service_data *data = get_service_data(srv);
-
- spin_lock_irq(&data->lock);
- pcie_pme_interrupt_enable(srv->port, false);
- pcie_clear_root_pme_status(srv->port);
- data->noirq = true;
- spin_unlock_irq(&data->lock);
-
- return 0;
-}
-
-static int pcie_pme_runtime_resume(struct pcie_device *srv)
-{
- struct pcie_pme_service_data *data = get_service_data(srv);
-
- spin_lock_irq(&data->lock);
- pcie_pme_interrupt_enable(srv->port, true);
- data->noirq = false;
- spin_unlock_irq(&data->lock);
-
- return 0;
-}
-
static struct pcie_port_service_driver pcie_pme_driver = {
.name = "pcie_pme",
.port_type = PCI_EXP_TYPE_ROOT_PORT,
@@ -464,8 +439,6 @@ static struct pcie_port_service_driver pcie_pme_driver = {

.probe = pcie_pme_probe,
.suspend = pcie_pme_suspend,
- .runtime_suspend = pcie_pme_runtime_suspend,
- .runtime_resume = pcie_pme_runtime_resume,
.resume = pcie_pme_resume,
.remove = pcie_pme_remove,
};
diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c
index d5a6aa9676c8..a3adc954f40f 100644
--- a/drivers/scsi/aacraid/commsup.c
+++ b/drivers/scsi/aacraid/commsup.c
@@ -1303,8 +1303,9 @@ static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr)
ADD : DELETE;
break;
}
- case AifBuManagerEvent:
- aac_handle_aif_bu(dev, aifcmd);
+ break;
+ case AifBuManagerEvent:
+ aac_handle_aif_bu(dev, aifcmd);
break;
}

diff --git a/drivers/staging/erofs/namei.c b/drivers/staging/erofs/namei.c
index 5596c52e246d..ecc51ef0753f 100644
--- a/drivers/staging/erofs/namei.c
+++ b/drivers/staging/erofs/namei.c
@@ -15,74 +15,77 @@

#include <trace/events/erofs.h>

-/* based on the value of qn->len is accurate */
-static inline int dirnamecmp(struct qstr *qn,
- struct qstr *qd, unsigned int *matched)
+struct erofs_qstr {
+ const unsigned char *name;
+ const unsigned char *end;
+};
+
+/* based on the end of qn is accurate and it must have the trailing '\0' */
+static inline int dirnamecmp(const struct erofs_qstr *qn,
+ const struct erofs_qstr *qd,
+ unsigned int *matched)
{
- unsigned int i = *matched, len = min(qn->len, qd->len);
-loop:
- if (unlikely(i >= len)) {
- *matched = i;
- if (qn->len < qd->len) {
- /*
- * actually (qn->len == qd->len)
- * when qd->name[i] == '\0'
- */
- return qd->name[i] == '\0' ? 0 : -1;
+ unsigned int i = *matched;
+
+ /*
+ * on-disk error, let's only BUG_ON in the debugging mode.
+ * otherwise, it will return 1 to just skip the invalid name
+ * and go on (in consideration of the lookup performance).
+ */
+ DBG_BUGON(qd->name > qd->end);
+
+ /* qd could not have trailing '\0' */
+ /* However it is absolutely safe if < qd->end */
+ while (qd->name + i < qd->end && qd->name[i] != '\0') {
+ if (qn->name[i] != qd->name[i]) {
+ *matched = i;
+ return qn->name[i] > qd->name[i] ? 1 : -1;
}
- return (qn->len > qd->len);
+ ++i;
}
-
- if (qn->name[i] != qd->name[i]) {
- *matched = i;
- return qn->name[i] > qd->name[i] ? 1 : -1;
- }
-
- ++i;
- goto loop;
+ *matched = i;
+ /* See comments in __d_alloc on the terminating NUL character */
+ return qn->name[i] == '\0' ? 0 : 1;
}

-static struct erofs_dirent *find_target_dirent(
- struct qstr *name,
- u8 *data, int maxsize)
+#define nameoff_from_disk(off, sz) (le16_to_cpu(off) & ((sz) - 1))
+
+static struct erofs_dirent *find_target_dirent(struct erofs_qstr *name,
+ u8 *data,
+ unsigned int dirblksize,
+ const int ndirents)
{
- unsigned int ndirents, head, back;
+ int head, back;
unsigned int startprfx, endprfx;
struct erofs_dirent *const de = (struct erofs_dirent *)data;

- /* make sure that maxsize is valid */
- BUG_ON(maxsize < sizeof(struct erofs_dirent));
-
- ndirents = le16_to_cpu(de->nameoff) / sizeof(*de);
-
- /* corrupted dir (may be unnecessary...) */
- BUG_ON(!ndirents);
-
- head = 0;
+ /* since the 1st dirent has been evaluated previously */
+ head = 1;
back = ndirents - 1;
startprfx = endprfx = 0;

while (head <= back) {
- unsigned int mid = head + (back - head) / 2;
- unsigned int nameoff = le16_to_cpu(de[mid].nameoff);
+ const int mid = head + (back - head) / 2;
+ const int nameoff = nameoff_from_disk(de[mid].nameoff,
+ dirblksize);
unsigned int matched = min(startprfx, endprfx);
-
- struct qstr dname = QSTR_INIT(data + nameoff,
- unlikely(mid >= ndirents - 1) ?
- maxsize - nameoff :
- le16_to_cpu(de[mid + 1].nameoff) - nameoff);
+ struct erofs_qstr dname = {
+ .name = data + nameoff,
+ .end = unlikely(mid >= ndirents - 1) ?
+ data + dirblksize :
+ data + nameoff_from_disk(de[mid + 1].nameoff,
+ dirblksize)
+ };

/* string comparison without already matched prefix */
int ret = dirnamecmp(name, &dname, &matched);

- if (unlikely(!ret))
+ if (unlikely(!ret)) {
return de + mid;
- else if (ret > 0) {
+ } else if (ret > 0) {
head = mid + 1;
startprfx = matched;
- } else if (unlikely(mid < 1)) /* fix "mid" overflow */
- break;
- else {
+ } else {
back = mid - 1;
endprfx = matched;
}
@@ -91,12 +94,12 @@ static struct erofs_dirent *find_target_dirent(
return ERR_PTR(-ENOENT);
}

-static struct page *find_target_block_classic(
- struct inode *dir,
- struct qstr *name, int *_diff)
+static struct page *find_target_block_classic(struct inode *dir,
+ struct erofs_qstr *name,
+ int *_ndirents)
{
unsigned int startprfx, endprfx;
- unsigned int head, back;
+ int head, back;
struct address_space *const mapping = dir->i_mapping;
struct page *candidate = ERR_PTR(-ENOENT);

@@ -105,41 +108,43 @@ static struct page *find_target_block_classic(
back = inode_datablocks(dir) - 1;

while (head <= back) {
- unsigned int mid = head + (back - head) / 2;
+ const int mid = head + (back - head) / 2;
struct page *page = read_mapping_page(mapping, mid, NULL);

- if (IS_ERR(page)) {
-exact_out:
- if (!IS_ERR(candidate)) /* valid candidate */
- put_page(candidate);
- return page;
- } else {
- int diff;
- unsigned int ndirents, matched;
- struct qstr dname;
+ if (!IS_ERR(page)) {
struct erofs_dirent *de = kmap_atomic(page);
- unsigned int nameoff = le16_to_cpu(de->nameoff);
-
- ndirents = nameoff / sizeof(*de);
+ const int nameoff = nameoff_from_disk(de->nameoff,
+ EROFS_BLKSIZ);
+ const int ndirents = nameoff / sizeof(*de);
+ int diff;
+ unsigned int matched;
+ struct erofs_qstr dname;

- /* corrupted dir (should have one entry at least) */
- BUG_ON(!ndirents || nameoff > PAGE_SIZE);
+ if (unlikely(!ndirents)) {
+ DBG_BUGON(1);
+ kunmap_atomic(de);
+ put_page(page);
+ page = ERR_PTR(-EIO);
+ goto out;
+ }

matched = min(startprfx, endprfx);

dname.name = (u8 *)de + nameoff;
- dname.len = ndirents == 1 ?
- /* since the rest of the last page is 0 */
- EROFS_BLKSIZ - nameoff
- : le16_to_cpu(de[1].nameoff) - nameoff;
+ if (ndirents == 1)
+ dname.end = (u8 *)de + EROFS_BLKSIZ;
+ else
+ dname.end = (u8 *)de +
+ nameoff_from_disk(de[1].nameoff,
+ EROFS_BLKSIZ);

/* string comparison without already matched prefix */
diff = dirnamecmp(name, &dname, &matched);
kunmap_atomic(de);

if (unlikely(!diff)) {
- *_diff = 0;
- goto exact_out;
+ *_ndirents = 0;
+ goto out;
} else if (diff > 0) {
head = mid + 1;
startprfx = matched;
@@ -147,45 +152,51 @@ static struct page *find_target_block_classic(
if (likely(!IS_ERR(candidate)))
put_page(candidate);
candidate = page;
+ *_ndirents = ndirents;
} else {
put_page(page);

- if (unlikely(mid < 1)) /* fix "mid" overflow */
- break;
-
back = mid - 1;
endprfx = matched;
}
+ continue;
}
+out: /* free if the candidate is valid */
+ if (!IS_ERR(candidate))
+ put_page(candidate);
+ return page;
}
- *_diff = 1;
return candidate;
}

int erofs_namei(struct inode *dir,
- struct qstr *name,
- erofs_nid_t *nid, unsigned int *d_type)
+ struct qstr *name,
+ erofs_nid_t *nid, unsigned int *d_type)
{
- int diff;
+ int ndirents;
struct page *page;
- u8 *data;
+ void *data;
struct erofs_dirent *de;
+ struct erofs_qstr qn;

if (unlikely(!dir->i_size))
return -ENOENT;

- diff = 1;
- page = find_target_block_classic(dir, name, &diff);
+ qn.name = name->name;
+ qn.end = name->name + name->len;
+
+ ndirents = 0;
+ page = find_target_block_classic(dir, &qn, &ndirents);

if (unlikely(IS_ERR(page)))
return PTR_ERR(page);

data = kmap_atomic(page);
/* the target page has been mapped */
- de = likely(diff) ?
- /* since the rest of the last page is 0 */
- find_target_dirent(name, data, EROFS_BLKSIZ) :
- (struct erofs_dirent *)data;
+ if (ndirents)
+ de = find_target_dirent(&qn, data, EROFS_BLKSIZ, ndirents);
+ else
+ de = (struct erofs_dirent *)data;

if (likely(!IS_ERR(de))) {
*nid = le64_to_cpu(de->nid);
diff --git a/drivers/staging/erofs/unzip_vle.c b/drivers/staging/erofs/unzip_vle.c
index ca2e8fd78959..ab30d14ded06 100644
--- a/drivers/staging/erofs/unzip_vle.c
+++ b/drivers/staging/erofs/unzip_vle.c
@@ -1017,11 +1017,10 @@ static int z_erofs_vle_unzip(struct super_block *sb,
if (llen > grp->llen)
llen = grp->llen;

- err = z_erofs_vle_unzip_fast_percpu(compressed_pages,
- clusterpages, pages, llen, work->pageofs,
- z_erofs_onlinepage_endio);
+ err = z_erofs_vle_unzip_fast_percpu(compressed_pages, clusterpages,
+ pages, llen, work->pageofs);
if (err != -ENOTSUPP)
- goto out_percpu;
+ goto out;

if (sparsemem_pages >= nr_pages)
goto skip_allocpage;
@@ -1042,8 +1041,25 @@ static int z_erofs_vle_unzip(struct super_block *sb,
erofs_vunmap(vout, nr_pages);

out:
+ /* must handle all compressed pages before endding pages */
+ for (i = 0; i < clusterpages; ++i) {
+ page = compressed_pages[i];
+
+#ifdef EROFS_FS_HAS_MANAGED_CACHE
+ if (page->mapping == MNGD_MAPPING(sbi))
+ continue;
+#endif
+ /* recycle all individual staging pages */
+ (void)z_erofs_gather_if_stagingpage(page_pool, page);
+
+ WRITE_ONCE(compressed_pages[i], NULL);
+ }
+
for (i = 0; i < nr_pages; ++i) {
page = pages[i];
+ if (!page)
+ continue;
+
DBG_BUGON(!page->mapping);

/* recycle all individual staging pages */
@@ -1056,20 +1072,6 @@ static int z_erofs_vle_unzip(struct super_block *sb,
z_erofs_onlinepage_endio(page);
}

-out_percpu:
- for (i = 0; i < clusterpages; ++i) {
- page = compressed_pages[i];
-
-#ifdef EROFS_FS_HAS_MANAGED_CACHE
- if (page->mapping == MNGD_MAPPING(sbi))
- continue;
-#endif
- /* recycle all individual staging pages */
- (void)z_erofs_gather_if_stagingpage(page_pool, page);
-
- WRITE_ONCE(compressed_pages[i], NULL);
- }
-
if (pages == z_pagemap_global)
mutex_unlock(&z_pagemap_global_lock);
else if (unlikely(pages != pages_onstack))
diff --git a/drivers/staging/erofs/unzip_vle.h b/drivers/staging/erofs/unzip_vle.h
index 5a4e1b62c0d1..c0dfd6906aa8 100644
--- a/drivers/staging/erofs/unzip_vle.h
+++ b/drivers/staging/erofs/unzip_vle.h
@@ -218,8 +218,7 @@ extern int z_erofs_vle_plain_copy(struct page **compressed_pages,

extern int z_erofs_vle_unzip_fast_percpu(struct page **compressed_pages,
unsigned clusterpages, struct page **pages,
- unsigned outlen, unsigned short pageofs,
- void (*endio)(struct page *));
+ unsigned int outlen, unsigned short pageofs);

extern int z_erofs_vle_unzip_vmap(struct page **compressed_pages,
unsigned clusterpages, void *vaddr, unsigned llen,
diff --git a/drivers/staging/erofs/unzip_vle_lz4.c b/drivers/staging/erofs/unzip_vle_lz4.c
index 52797bd89da1..f471b894c848 100644
--- a/drivers/staging/erofs/unzip_vle_lz4.c
+++ b/drivers/staging/erofs/unzip_vle_lz4.c
@@ -125,8 +125,7 @@ int z_erofs_vle_unzip_fast_percpu(struct page **compressed_pages,
unsigned int clusterpages,
struct page **pages,
unsigned int outlen,
- unsigned short pageofs,
- void (*endio)(struct page *))
+ unsigned short pageofs)
{
void *vin, *vout;
unsigned int nr_pages, i, j;
@@ -148,19 +147,16 @@ int z_erofs_vle_unzip_fast_percpu(struct page **compressed_pages,
ret = z_erofs_unzip_lz4(vin, vout + pageofs,
clusterpages * PAGE_SIZE, outlen);

- if (ret >= 0) {
- outlen = ret;
- ret = 0;
- }
+ if (ret < 0)
+ goto out;
+ ret = 0;

for (i = 0; i < nr_pages; ++i) {
j = min((unsigned int)PAGE_SIZE - pageofs, outlen);

if (pages[i]) {
- if (ret < 0) {
- SetPageError(pages[i]);
- } else if (clusterpages == 1 &&
- pages[i] == compressed_pages[0]) {
+ if (clusterpages == 1 &&
+ pages[i] == compressed_pages[0]) {
memcpy(vin + pageofs, vout + pageofs, j);
} else {
void *dst = kmap_atomic(pages[i]);
@@ -168,12 +164,13 @@ int z_erofs_vle_unzip_fast_percpu(struct page **compressed_pages,
memcpy(dst + pageofs, vout + pageofs, j);
kunmap_atomic(dst);
}
- endio(pages[i]);
}
vout += PAGE_SIZE;
outlen -= j;
pageofs = 0;
}
+
+out:
preempt_enable();

if (clusterpages == 1)
diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c
index b92740edc416..4b038f25f256 100644
--- a/fs/gfs2/glock.c
+++ b/fs/gfs2/glock.c
@@ -107,7 +107,7 @@ static int glock_wake_function(wait_queue_entry_t *wait, unsigned int mode,

static wait_queue_head_t *glock_waitqueue(struct lm_lockname *name)
{
- u32 hash = jhash2((u32 *)name, sizeof(*name) / 4, 0);
+ u32 hash = jhash2((u32 *)name, ht_parms.key_len / 4, 0);

return glock_wait_table + hash_32(hash, GLOCK_WAIT_TABLE_BITS);
}
diff --git a/include/drm/drm_cache.h b/include/drm/drm_cache.h
index bfe1639df02d..97fc498dc767 100644
--- a/include/drm/drm_cache.h
+++ b/include/drm/drm_cache.h
@@ -47,6 +47,24 @@ static inline bool drm_arch_can_wc_memory(void)
return false;
#elif defined(CONFIG_MIPS) && defined(CONFIG_CPU_LOONGSON3)
return false;
+#elif defined(CONFIG_ARM) || defined(CONFIG_ARM64)
+ /*
+ * The DRM driver stack is designed to work with cache coherent devices
+ * only, but permits an optimization to be enabled in some cases, where
+ * for some buffers, both the CPU and the GPU use uncached mappings,
+ * removing the need for DMA snooping and allocation in the CPU caches.
+ *
+ * The use of uncached GPU mappings relies on the correct implementation
+ * of the PCIe NoSnoop TLP attribute by the platform, otherwise the GPU
+ * will use cached mappings nonetheless. On x86 platforms, this does not
+ * seem to matter, as uncached CPU mappings will snoop the caches in any
+ * case. However, on ARM and arm64, enabling this optimization on a
+ * platform where NoSnoop is ignored results in loss of coherency, which
+ * breaks correct operation of the device. Since we have no way of
+ * detecting whether NoSnoop works or not, just disable this
+ * optimization entirely for ARM and arm64.
+ */
+ return false;
#else
return true;
#endif
diff --git a/net/core/skmsg.c b/net/core/skmsg.c
index 8c826603bf36..8bc0ba1ebabe 100644
--- a/net/core/skmsg.c
+++ b/net/core/skmsg.c
@@ -545,6 +545,7 @@ static void sk_psock_destroy_deferred(struct work_struct *gc)
struct sk_psock *psock = container_of(gc, struct sk_psock, gc);

/* No sk_callback_lock since already detached. */
+ strp_stop(&psock->parser.strp);
strp_done(&psock->parser.strp);

cancel_work_sync(&psock->work);
diff --git a/scripts/gdb/linux/constants.py.in b/scripts/gdb/linux/constants.py.in
index 7aad82406422..d3319a80788a 100644
--- a/scripts/gdb/linux/constants.py.in
+++ b/scripts/gdb/linux/constants.py.in
@@ -37,12 +37,12 @@
import gdb

/* linux/fs.h */
-LX_VALUE(MS_RDONLY)
-LX_VALUE(MS_SYNCHRONOUS)
-LX_VALUE(MS_MANDLOCK)
-LX_VALUE(MS_DIRSYNC)
-LX_VALUE(MS_NOATIME)
-LX_VALUE(MS_NODIRATIME)
+LX_VALUE(SB_RDONLY)
+LX_VALUE(SB_SYNCHRONOUS)
+LX_VALUE(SB_MANDLOCK)
+LX_VALUE(SB_DIRSYNC)
+LX_VALUE(SB_NOATIME)
+LX_VALUE(SB_NODIRATIME)

/* linux/mount.h */
LX_VALUE(MNT_NOSUID)
diff --git a/scripts/gdb/linux/proc.py b/scripts/gdb/linux/proc.py
index 0aebd7565b03..2f01a958eb22 100644
--- a/scripts/gdb/linux/proc.py
+++ b/scripts/gdb/linux/proc.py
@@ -114,11 +114,11 @@ def info_opts(lst, opt):
return opts


-FS_INFO = {constants.LX_MS_SYNCHRONOUS: ",sync",
- constants.LX_MS_MANDLOCK: ",mand",
- constants.LX_MS_DIRSYNC: ",dirsync",
- constants.LX_MS_NOATIME: ",noatime",
- constants.LX_MS_NODIRATIME: ",nodiratime"}
+FS_INFO = {constants.LX_SB_SYNCHRONOUS: ",sync",
+ constants.LX_SB_MANDLOCK: ",mand",
+ constants.LX_SB_DIRSYNC: ",dirsync",
+ constants.LX_SB_NOATIME: ",noatime",
+ constants.LX_SB_NODIRATIME: ",nodiratime"}

MNT_INFO = {constants.LX_MNT_NOSUID: ",nosuid",
constants.LX_MNT_NODEV: ",nodev",
@@ -184,7 +184,7 @@ values of that process namespace"""
fstype = superblock['s_type']['name'].string()
s_flags = int(superblock['s_flags'])
m_flags = int(vfs['mnt']['mnt_flags'])
- rd = "ro" if (s_flags & constants.LX_MS_RDONLY) else "rw"
+ rd = "ro" if (s_flags & constants.LX_SB_RDONLY) else "rw"

gdb.write(
"{} {} {} {}{}{} 0 0\n"
\
 
 \ /
  Last update: 2019-03-14 17:28    [W:0.123 / U:0.232 seconds]
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