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Message-ID: <2024102231-hangout-cradling-8193@gregkh>
Date: Tue, 22 Oct 2024 16:45:31 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org,
akpm@...ux-foundation.org,
torvalds@...ux-foundation.org,
stable@...r.kernel.org
Cc: lwn@....net,
jslaby@...e.cz,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: Linux 5.10.228
diff --git a/Makefile b/Makefile
index 87bfb6c78600..7dbddd98e441 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
VERSION = 5
PATCHLEVEL = 10
-SUBLEVEL = 227
+SUBLEVEL = 228
EXTRAVERSION =
NAME = Dare mighty things
diff --git a/arch/arm64/kernel/probes/decode-insn.c b/arch/arm64/kernel/probes/decode-insn.c
index 104101f633b1..492e50a6ddbf 100644
--- a/arch/arm64/kernel/probes/decode-insn.c
+++ b/arch/arm64/kernel/probes/decode-insn.c
@@ -99,10 +99,6 @@ arm_probe_decode_insn(probe_opcode_t insn, struct arch_probe_insn *api)
aarch64_insn_is_blr(insn) ||
aarch64_insn_is_ret(insn)) {
api->handler = simulate_br_blr_ret;
- } else if (aarch64_insn_is_ldr_lit(insn)) {
- api->handler = simulate_ldr_literal;
- } else if (aarch64_insn_is_ldrsw_lit(insn)) {
- api->handler = simulate_ldrsw_literal;
} else {
/*
* Instruction cannot be stepped out-of-line and we don't
@@ -140,6 +136,17 @@ arm_kprobe_decode_insn(kprobe_opcode_t *addr, struct arch_specific_insn *asi)
probe_opcode_t insn = le32_to_cpu(*addr);
probe_opcode_t *scan_end = NULL;
unsigned long size = 0, offset = 0;
+ struct arch_probe_insn *api = &asi->api;
+
+ if (aarch64_insn_is_ldr_lit(insn)) {
+ api->handler = simulate_ldr_literal;
+ decoded = INSN_GOOD_NO_SLOT;
+ } else if (aarch64_insn_is_ldrsw_lit(insn)) {
+ api->handler = simulate_ldrsw_literal;
+ decoded = INSN_GOOD_NO_SLOT;
+ } else {
+ decoded = arm_probe_decode_insn(insn, &asi->api);
+ }
/*
* If there's a symbol defined in front of and near enough to
@@ -157,7 +164,6 @@ arm_kprobe_decode_insn(kprobe_opcode_t *addr, struct arch_specific_insn *asi)
else
scan_end = addr - MAX_ATOMIC_CONTEXT_SIZE;
}
- decoded = arm_probe_decode_insn(insn, &asi->api);
if (decoded != INSN_REJECTED && scan_end)
if (is_probed_address_atomic(addr - 1, scan_end))
diff --git a/arch/arm64/kernel/probes/simulate-insn.c b/arch/arm64/kernel/probes/simulate-insn.c
index 25f67ec59635..7d63423eafc2 100644
--- a/arch/arm64/kernel/probes/simulate-insn.c
+++ b/arch/arm64/kernel/probes/simulate-insn.c
@@ -170,17 +170,15 @@ simulate_tbz_tbnz(u32 opcode, long addr, struct pt_regs *regs)
void __kprobes
simulate_ldr_literal(u32 opcode, long addr, struct pt_regs *regs)
{
- u64 *load_addr;
+ unsigned long load_addr;
int xn = opcode & 0x1f;
- int disp;
- disp = ldr_displacement(opcode);
- load_addr = (u64 *) (addr + disp);
+ load_addr = addr + ldr_displacement(opcode);
if (opcode & (1 << 30)) /* x0-x30 */
- set_x_reg(regs, xn, *load_addr);
+ set_x_reg(regs, xn, READ_ONCE(*(u64 *)load_addr));
else /* w0-w30 */
- set_w_reg(regs, xn, *load_addr);
+ set_w_reg(regs, xn, READ_ONCE(*(u32 *)load_addr));
instruction_pointer_set(regs, instruction_pointer(regs) + 4);
}
@@ -188,14 +186,12 @@ simulate_ldr_literal(u32 opcode, long addr, struct pt_regs *regs)
void __kprobes
simulate_ldrsw_literal(u32 opcode, long addr, struct pt_regs *regs)
{
- s32 *load_addr;
+ unsigned long load_addr;
int xn = opcode & 0x1f;
- int disp;
- disp = ldr_displacement(opcode);
- load_addr = (s32 *) (addr + disp);
+ load_addr = addr + ldr_displacement(opcode);
- set_x_reg(regs, xn, *load_addr);
+ set_x_reg(regs, xn, READ_ONCE(*(s32 *)load_addr));
instruction_pointer_set(regs, instruction_pointer(regs) + 4);
}
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index ce8569e16f0c..96b3e31ee0f3 100644
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -1177,6 +1177,9 @@ void __init mem_topology_setup(void)
{
int cpu;
+ max_low_pfn = max_pfn = memblock_end_of_DRAM() >> PAGE_SHIFT;
+ min_low_pfn = MEMORY_START >> PAGE_SHIFT;
+
/*
* Linux/mm assumes node 0 to be online at boot. However this is not
* true on PowerPC, where node 0 is similar to any other node, it
@@ -1221,9 +1224,6 @@ void __init initmem_init(void)
{
int nid;
- max_low_pfn = memblock_end_of_DRAM() >> PAGE_SHIFT;
- max_pfn = max_low_pfn;
-
memblock_dump_all();
for_each_online_node(nid) {
diff --git a/arch/s390/kvm/diag.c b/arch/s390/kvm/diag.c
index 5b8ec1c447e1..01582fb5ad65 100644
--- a/arch/s390/kvm/diag.c
+++ b/arch/s390/kvm/diag.c
@@ -77,7 +77,7 @@ static int __diag_page_ref_service(struct kvm_vcpu *vcpu)
vcpu->stat.diagnose_258++;
if (vcpu->run->s.regs.gprs[rx] & 7)
return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
- rc = read_guest(vcpu, vcpu->run->s.regs.gprs[rx], rx, &parm, sizeof(parm));
+ rc = read_guest_real(vcpu, vcpu->run->s.regs.gprs[rx], &parm, sizeof(parm));
if (rc)
return kvm_s390_inject_prog_cond(vcpu, rc);
if (parm.parm_version != 2 || parm.parm_len < 5 || parm.code != 0x258)
diff --git a/arch/x86/entry/entry.S b/arch/x86/entry/entry.S
index 09e99d13fc0b..f4419afc7147 100644
--- a/arch/x86/entry/entry.S
+++ b/arch/x86/entry/entry.S
@@ -9,6 +9,8 @@
#include <asm/unwind_hints.h>
#include <asm/segment.h>
#include <asm/cache.h>
+#include <asm/cpufeatures.h>
+#include <asm/nospec-branch.h>
.pushsection .noinstr.text, "ax"
@@ -17,6 +19,9 @@ SYM_FUNC_START(entry_ibpb)
movl $PRED_CMD_IBPB, %eax
xorl %edx, %edx
wrmsr
+
+ /* Make sure IBPB clears return stack preductions too. */
+ FILL_RETURN_BUFFER %rax, RSB_CLEAR_LOOPS, X86_BUG_IBPB_NO_RET
RET
SYM_FUNC_END(entry_ibpb)
/* For KVM */
diff --git a/arch/x86/entry/entry_32.S b/arch/x86/entry/entry_32.S
index 97d422f31c77..c524aa3f094a 100644
--- a/arch/x86/entry/entry_32.S
+++ b/arch/x86/entry/entry_32.S
@@ -939,6 +939,8 @@ SYM_FUNC_START(entry_SYSENTER_32)
/* Now ready to switch the cr3 */
SWITCH_TO_USER_CR3 scratch_reg=%eax
+ /* Clobbers ZF */
+ CLEAR_CPU_BUFFERS
/*
* Restore all flags except IF. (We restore IF separately because
@@ -949,7 +951,6 @@ SYM_FUNC_START(entry_SYSENTER_32)
BUG_IF_WRONG_CR3 no_user_check=1
popfl
popl %eax
- CLEAR_CPU_BUFFERS
/*
* Return back to the vDSO, which will pop ecx and edx.
@@ -1221,7 +1222,6 @@ SYM_CODE_START(asm_exc_nmi)
/* Not on SYSENTER stack. */
call exc_nmi
- CLEAR_CPU_BUFFERS
jmp .Lnmi_return
.Lnmi_from_sysenter_stack:
@@ -1242,6 +1242,7 @@ SYM_CODE_START(asm_exc_nmi)
CHECK_AND_APPLY_ESPFIX
RESTORE_ALL_NMI cr3_reg=%edi pop=4
+ CLEAR_CPU_BUFFERS
jmp .Lirq_return
#ifdef CONFIG_X86_ESPFIX32
@@ -1283,6 +1284,7 @@ SYM_CODE_START(asm_exc_nmi)
* 1 - orig_ax
*/
lss (1+5+6)*4(%esp), %esp # back to espfix stack
+ CLEAR_CPU_BUFFERS
jmp .Lirq_return
#endif
SYM_CODE_END(asm_exc_nmi)
diff --git a/arch/x86/include/asm/cpufeatures.h b/arch/x86/include/asm/cpufeatures.h
index e1bc2bad8cff..23f563493e81 100644
--- a/arch/x86/include/asm/cpufeatures.h
+++ b/arch/x86/include/asm/cpufeatures.h
@@ -217,7 +217,7 @@
#define X86_FEATURE_SPEC_STORE_BYPASS_DISABLE ( 7*32+23) /* "" Disable Speculative Store Bypass. */
#define X86_FEATURE_LS_CFG_SSBD ( 7*32+24) /* "" AMD SSBD implementation via LS_CFG MSR */
#define X86_FEATURE_IBRS ( 7*32+25) /* Indirect Branch Restricted Speculation */
-#define X86_FEATURE_IBPB ( 7*32+26) /* Indirect Branch Prediction Barrier */
+#define X86_FEATURE_IBPB ( 7*32+26) /* "ibpb" Indirect Branch Prediction Barrier without a guaranteed RSB flush */
#define X86_FEATURE_STIBP ( 7*32+27) /* Single Thread Indirect Branch Predictors */
#define X86_FEATURE_ZEN ( 7*32+28) /* "" CPU is AMD family 0x17 or above (Zen) */
#define X86_FEATURE_L1TF_PTEINV ( 7*32+29) /* "" L1TF workaround PTE inversion */
@@ -324,6 +324,7 @@
#define X86_FEATURE_VIRT_SSBD (13*32+25) /* Virtualized Speculative Store Bypass Disable */
#define X86_FEATURE_AMD_SSB_NO (13*32+26) /* "" Speculative Store Bypass is fixed in hardware. */
#define X86_FEATURE_BTC_NO (13*32+29) /* "" Not vulnerable to Branch Type Confusion */
+#define X86_FEATURE_AMD_IBPB_RET (13*32+30) /* "" IBPB clears return address predictor */
/* Thermal and Power Management Leaf, CPUID level 0x00000006 (EAX), word 14 */
#define X86_FEATURE_DTHERM (14*32+ 0) /* Digital Thermal Sensor */
@@ -455,4 +456,6 @@
#define X86_BUG_SRSO X86_BUG(1*32 + 0) /* AMD SRSO bug */
#define X86_BUG_DIV0 X86_BUG(1*32 + 1) /* AMD DIV0 speculation bug */
#define X86_BUG_RFDS X86_BUG(1*32 + 2) /* CPU is vulnerable to Register File Data Sampling */
+#define X86_BUG_BHI X86_BUG(1*32 + 3) /* CPU is affected by Branch History Injection */
+#define X86_BUG_IBPB_NO_RET X86_BUG(1*32 + 4) /* "ibpb_no_ret" IBPB omits return target predictions */
#endif /* _ASM_X86_CPUFEATURES_H */
diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
index 25eb69f26e03..3a3878817c20 100644
--- a/arch/x86/kernel/apic/apic.c
+++ b/arch/x86/kernel/apic/apic.c
@@ -491,7 +491,19 @@ static int lapic_timer_shutdown(struct clock_event_device *evt)
v = apic_read(APIC_LVTT);
v |= (APIC_LVT_MASKED | LOCAL_TIMER_VECTOR);
apic_write(APIC_LVTT, v);
- apic_write(APIC_TMICT, 0);
+
+ /*
+ * Setting APIC_LVT_MASKED (above) should be enough to tell
+ * the hardware that this timer will never fire. But AMD
+ * erratum 411 and some Intel CPU behavior circa 2024 say
+ * otherwise. Time for belt and suspenders programming: mask
+ * the timer _and_ zero the counter registers:
+ */
+ if (v & APIC_LVT_TIMER_TSCDEADLINE)
+ wrmsrl(MSR_IA32_TSC_DEADLINE, 0);
+ else
+ apic_write(APIC_TMICT, 0);
+
return 0;
}
diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c
index d6e14190cf80..0b7f6bcbb8ea 100644
--- a/arch/x86/kernel/cpu/bugs.c
+++ b/arch/x86/kernel/cpu/bugs.c
@@ -1061,7 +1061,24 @@ static void __init retbleed_select_mitigation(void)
case RETBLEED_MITIGATION_IBPB:
setup_force_cpu_cap(X86_FEATURE_ENTRY_IBPB);
+
+ /*
+ * IBPB on entry already obviates the need for
+ * software-based untraining so clear those in case some
+ * other mitigation like SRSO has selected them.
+ */
+ setup_clear_cpu_cap(X86_FEATURE_UNRET);
+ setup_clear_cpu_cap(X86_FEATURE_RETHUNK);
+
mitigate_smt = true;
+
+ /*
+ * There is no need for RSB filling: entry_ibpb() ensures
+ * all predictions, including the RSB, are invalidated,
+ * regardless of IBPB implementation.
+ */
+ setup_clear_cpu_cap(X86_FEATURE_RSB_VMEXIT);
+
break;
default:
@@ -2453,6 +2470,14 @@ static void __init srso_select_mitigation(void)
if (has_microcode) {
setup_force_cpu_cap(X86_FEATURE_ENTRY_IBPB);
srso_mitigation = SRSO_MITIGATION_IBPB;
+
+ /*
+ * IBPB on entry already obviates the need for
+ * software-based untraining so clear those in case some
+ * other mitigation like Retbleed has selected them.
+ */
+ setup_clear_cpu_cap(X86_FEATURE_UNRET);
+ setup_clear_cpu_cap(X86_FEATURE_RETHUNK);
}
} else {
pr_err("WARNING: kernel not compiled with CPU_IBPB_ENTRY.\n");
@@ -2465,6 +2490,13 @@ static void __init srso_select_mitigation(void)
if (!boot_cpu_has(X86_FEATURE_ENTRY_IBPB) && has_microcode) {
setup_force_cpu_cap(X86_FEATURE_IBPB_ON_VMEXIT);
srso_mitigation = SRSO_MITIGATION_IBPB_ON_VMEXIT;
+
+ /*
+ * There is no need for RSB filling: entry_ibpb() ensures
+ * all predictions, including the RSB, are invalidated,
+ * regardless of IBPB implementation.
+ */
+ setup_clear_cpu_cap(X86_FEATURE_RSB_VMEXIT);
}
} else {
pr_err("WARNING: kernel not compiled with CPU_SRSO.\n");
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index a496a9867f4b..bdcf1e9375ee 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -1335,6 +1335,9 @@ static void __init cpu_set_bug_bits(struct cpuinfo_x86 *c)
if (vulnerable_to_rfds(ia32_cap))
setup_force_cpu_bug(X86_BUG_RFDS);
+ if (cpu_has(c, X86_FEATURE_AMD_IBPB) && !cpu_has(c, X86_FEATURE_AMD_IBPB_RET))
+ setup_force_cpu_bug(X86_BUG_IBPB_NO_RET);
+
if (cpu_matches(cpu_vuln_whitelist, NO_MELTDOWN))
return;
diff --git a/arch/x86/kernel/cpu/resctrl/core.c b/arch/x86/kernel/cpu/resctrl/core.c
index 4ccb9039f595..32005e229c03 100644
--- a/arch/x86/kernel/cpu/resctrl/core.c
+++ b/arch/x86/kernel/cpu/resctrl/core.c
@@ -251,7 +251,7 @@ static inline bool rdt_get_mb_table(struct rdt_resource *r)
return false;
}
-static bool __get_mem_config_intel(struct rdt_resource *r)
+static __init bool __get_mem_config_intel(struct rdt_resource *r)
{
union cpuid_0x10_3_eax eax;
union cpuid_0x10_x_edx edx;
@@ -285,7 +285,7 @@ static bool __get_mem_config_intel(struct rdt_resource *r)
return true;
}
-static bool __rdt_get_mem_config_amd(struct rdt_resource *r)
+static __init bool __rdt_get_mem_config_amd(struct rdt_resource *r)
{
union cpuid_0x10_3_eax eax;
union cpuid_0x10_x_edx edx;
diff --git a/block/blk-rq-qos.c b/block/blk-rq-qos.c
index e83af7bc7591..26dd3e7bd00d 100644
--- a/block/blk-rq-qos.c
+++ b/block/blk-rq-qos.c
@@ -225,8 +225,8 @@ static int rq_qos_wake_function(struct wait_queue_entry *curr,
data->got_token = true;
smp_wmb();
- list_del_init(&curr->entry);
wake_up_process(data->task);
+ list_del_init_careful(&curr->entry);
return 1;
}
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index 930dee28271e..d34c7758b93d 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -928,10 +928,15 @@ static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
if (!urb)
return -ENOMEM;
- /* Use maximum HCI Event size so the USB stack handles
- * ZPL/short-transfer automatically.
- */
- size = HCI_MAX_EVENT_SIZE;
+ if (le16_to_cpu(data->udev->descriptor.idVendor) == 0x0a12 &&
+ le16_to_cpu(data->udev->descriptor.idProduct) == 0x0001)
+ /* Fake CSR devices don't seem to support sort-transter */
+ size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
+ else
+ /* Use maximum HCI Event size so the USB stack handles
+ * ZPL/short-transfer automatically.
+ */
+ size = HCI_MAX_EVENT_SIZE;
buf = kmalloc(size, mem_flags);
if (!buf) {
diff --git a/drivers/gpu/drm/radeon/radeon_encoders.c b/drivers/gpu/drm/radeon/radeon_encoders.c
index ced022fae19d..ca01a813c819 100644
--- a/drivers/gpu/drm/radeon/radeon_encoders.c
+++ b/drivers/gpu/drm/radeon/radeon_encoders.c
@@ -47,7 +47,7 @@ static uint32_t radeon_encoder_clones(struct drm_encoder *encoder)
struct radeon_device *rdev = dev->dev_private;
struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
struct drm_encoder *clone_encoder;
- uint32_t index_mask = 0;
+ uint32_t index_mask = drm_encoder_mask(encoder);
int count;
/* DIG routing gets problematic */
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
index 0e963fd7db17..73cbb94ff456 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
@@ -1402,6 +1402,7 @@ static struct drm_framebuffer *vmw_kms_fb_create(struct drm_device *dev,
DRM_ERROR("Surface size cannot exceed %dx%d",
dev_priv->texture_max_width,
dev_priv->texture_max_height);
+ ret = -EINVAL;
goto err_out;
}
diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig
index e39b679126a2..6de9ca5579d6 100644
--- a/drivers/iio/adc/Kconfig
+++ b/drivers/iio/adc/Kconfig
@@ -1126,6 +1126,8 @@ config TI_ADS8344
config TI_ADS8688
tristate "Texas Instruments ADS8688"
depends on SPI && OF
+ select IIO_BUFFER
+ select IIO_TRIGGERED_BUFFER
help
If you say yes here you get support for Texas Instruments ADS8684 and
and ADS8688 ADC chips
@@ -1136,6 +1138,8 @@ config TI_ADS8688
config TI_ADS124S08
tristate "Texas Instruments ADS124S08"
depends on SPI && OF
+ select IIO_BUFFER
+ select IIO_TRIGGERED_BUFFER
help
If you say yes here you get support for Texas Instruments ADS124S08
and ADS124S06 ADC chips
diff --git a/drivers/iio/common/hid-sensors/hid-sensor-trigger.c b/drivers/iio/common/hid-sensors/hid-sensor-trigger.c
index ff375790b7e8..ab4d9a335b7c 100644
--- a/drivers/iio/common/hid-sensors/hid-sensor-trigger.c
+++ b/drivers/iio/common/hid-sensors/hid-sensor-trigger.c
@@ -35,7 +35,7 @@ static ssize_t _hid_sensor_set_report_latency(struct device *dev,
latency = integer * 1000 + fract / 1000;
ret = hid_sensor_set_report_latency(attrb, latency);
if (ret < 0)
- return len;
+ return ret;
attrb->latency_ms = hid_sensor_get_report_latency(attrb);
diff --git a/drivers/iio/dac/Kconfig b/drivers/iio/dac/Kconfig
index dae8d27e772d..cd11c1737ae1 100644
--- a/drivers/iio/dac/Kconfig
+++ b/drivers/iio/dac/Kconfig
@@ -191,6 +191,7 @@ config AD5764
config AD5770R
tristate "Analog Devices AD5770R IDAC driver"
depends on SPI_MASTER
+ select REGMAP_SPI
help
Say yes here to build support for Analog Devices AD5770R Digital to
Analog Converter.
@@ -271,6 +272,7 @@ config LPC18XX_DAC
config LTC1660
tristate "Linear Technology LTC1660/LTC1665 DAC SPI driver"
depends on SPI
+ select REGMAP_SPI
help
Say yes here to build support for Linear Technology
LTC1660 and LTC1665 Digital to Analog Converters.
@@ -357,6 +359,7 @@ config STM32_DAC
config STM32_DAC_CORE
tristate
+ select REGMAP_MMIO
config TI_DAC082S085
tristate "Texas Instruments 8/10/12-bit 2/4-channel DAC driver"
diff --git a/drivers/iio/light/opt3001.c b/drivers/iio/light/opt3001.c
index ff776259734a..ff01fc9fc0b2 100644
--- a/drivers/iio/light/opt3001.c
+++ b/drivers/iio/light/opt3001.c
@@ -138,6 +138,10 @@ static const struct opt3001_scale opt3001_scales[] = {
.val = 20966,
.val2 = 400000,
},
+ {
+ .val = 41932,
+ .val2 = 800000,
+ },
{
.val = 83865,
.val2 = 600000,
diff --git a/drivers/iio/light/veml6030.c b/drivers/iio/light/veml6030.c
index de85c9b30be1..f859cdb3094c 100644
--- a/drivers/iio/light/veml6030.c
+++ b/drivers/iio/light/veml6030.c
@@ -99,9 +99,8 @@ static const char * const period_values[] = {
static ssize_t in_illuminance_period_available_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
+ struct veml6030_data *data = iio_priv(dev_to_iio_dev(dev));
int ret, reg, x;
- struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
- struct veml6030_data *data = iio_priv(indio_dev);
ret = regmap_read(data->regmap, VEML6030_REG_ALS_CONF, ®);
if (ret) {
@@ -780,7 +779,7 @@ static int veml6030_hw_init(struct iio_dev *indio_dev)
/* Cache currently active measurement parameters */
data->cur_gain = 3;
- data->cur_resolution = 4608;
+ data->cur_resolution = 5376;
data->cur_integration_time = 3;
return ret;
diff --git a/drivers/iio/proximity/Kconfig b/drivers/iio/proximity/Kconfig
index 12672a0e89ed..e6857223d5a7 100644
--- a/drivers/iio/proximity/Kconfig
+++ b/drivers/iio/proximity/Kconfig
@@ -49,6 +49,8 @@ config LIDAR_LITE_V2
config MB1232
tristate "MaxSonar I2CXL family ultrasonic sensors"
depends on I2C
+ select IIO_BUFFER
+ select IIO_TRIGGERED_BUFFER
help
Say Y to build a driver for the ultrasonic sensors I2CXL of
MaxBotix which have an i2c interface. It can be used to measure
diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c
index a9469751720c..d8d3d0af988e 100644
--- a/drivers/irqchip/irq-gic-v3-its.c
+++ b/drivers/irqchip/irq-gic-v3-its.c
@@ -779,6 +779,7 @@ static struct its_vpe *its_build_vmapp_cmd(struct its_node *its,
struct its_cmd_block *cmd,
struct its_cmd_desc *desc)
{
+ struct its_vpe *vpe = valid_vpe(its, desc->its_vmapp_cmd.vpe);
unsigned long vpt_addr, vconf_addr;
u64 target;
bool alloc;
@@ -788,9 +789,14 @@ static struct its_vpe *its_build_vmapp_cmd(struct its_node *its,
its_encode_valid(cmd, desc->its_vmapp_cmd.valid);
if (!desc->its_vmapp_cmd.valid) {
+ alloc = !atomic_dec_return(&desc->its_vmapp_cmd.vpe->vmapp_count);
if (is_v4_1(its)) {
- alloc = !atomic_dec_return(&desc->its_vmapp_cmd.vpe->vmapp_count);
its_encode_alloc(cmd, alloc);
+ /*
+ * Unmapping a VPE is self-synchronizing on GICv4.1,
+ * no need to issue a VSYNC.
+ */
+ vpe = NULL;
}
goto out;
@@ -803,13 +809,13 @@ static struct its_vpe *its_build_vmapp_cmd(struct its_node *its,
its_encode_vpt_addr(cmd, vpt_addr);
its_encode_vpt_size(cmd, LPI_NRBITS - 1);
+ alloc = !atomic_fetch_inc(&desc->its_vmapp_cmd.vpe->vmapp_count);
+
if (!is_v4_1(its))
goto out;
vconf_addr = virt_to_phys(page_address(desc->its_vmapp_cmd.vpe->its_vm->vprop_page));
- alloc = !atomic_fetch_inc(&desc->its_vmapp_cmd.vpe->vmapp_count);
-
its_encode_alloc(cmd, alloc);
/* We can only signal PTZ when alloc==1. Why do we have two bits? */
@@ -820,7 +826,7 @@ static struct its_vpe *its_build_vmapp_cmd(struct its_node *its,
out:
its_fixup_cmd(cmd);
- return valid_vpe(its, desc->its_vmapp_cmd.vpe);
+ return vpe;
}
static struct its_vpe *its_build_vmapti_cmd(struct its_node *its,
@@ -3786,6 +3792,13 @@ static int its_vpe_set_affinity(struct irq_data *d,
unsigned long flags;
int from, cpu;
+ /*
+ * Check if we're racing against a VPE being destroyed, for
+ * which we don't want to allow a VMOVP.
+ */
+ if (!atomic_read(&vpe->vmapp_count))
+ return -EINVAL;
+
/*
* Changing affinity is mega expensive, so let's be as lazy as
* we can and only do it if we really have to. Also, if mapped
@@ -4418,9 +4431,8 @@ static int its_vpe_init(struct its_vpe *vpe)
raw_spin_lock_init(&vpe->vpe_lock);
vpe->vpe_id = vpe_id;
vpe->vpt_page = vpt_page;
- if (gic_rdists->has_rvpeid)
- atomic_set(&vpe->vmapp_count, 0);
- else
+ atomic_set(&vpe->vmapp_count, 0);
+ if (!gic_rdists->has_rvpeid)
vpe->vpe_proxy_event = -1;
return 0;
diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c
index 70d57ef95fb1..c3a8f6fc05ae 100644
--- a/drivers/net/ethernet/cadence/macb_main.c
+++ b/drivers/net/ethernet/cadence/macb_main.c
@@ -742,9 +742,6 @@ static int macb_mdiobus_register(struct macb *bp)
{
struct device_node *child, *np = bp->pdev->dev.of_node;
- if (of_phy_is_fixed_link(np))
- return mdiobus_register(bp->mii_bus);
-
/* Only create the PHY from the device tree if at least one PHY is
* described. Otherwise scan the entire MDIO bus. We do this to support
* old device tree that did not follow the best practices and did not
@@ -765,8 +762,19 @@ static int macb_mdiobus_register(struct macb *bp)
static int macb_mii_init(struct macb *bp)
{
+ struct device_node *child, *np = bp->pdev->dev.of_node;
int err = -ENXIO;
+ /* With fixed-link, we don't need to register the MDIO bus,
+ * except if we have a child named "mdio" in the device tree.
+ * In that case, some devices may be attached to the MACB's MDIO bus.
+ */
+ child = of_get_child_by_name(np, "mdio");
+ if (child)
+ of_node_put(child);
+ else if (of_phy_is_fixed_link(np))
+ return macb_mii_probe(bp->dev);
+
/* Enable management port */
macb_writel(bp, NCR, MACB_BIT(MPE));
diff --git a/drivers/parport/procfs.c b/drivers/parport/procfs.c
index 8400a379186e..180376c09cb4 100644
--- a/drivers/parport/procfs.c
+++ b/drivers/parport/procfs.c
@@ -51,12 +51,12 @@ static int do_active_device(struct ctl_table *table, int write,
for (dev = port->devices; dev ; dev = dev->next) {
if(dev == port->cad) {
- len += snprintf(buffer, sizeof(buffer), "%s\n", dev->name);
+ len += scnprintf(buffer, sizeof(buffer), "%s\n", dev->name);
}
}
if(!len) {
- len += snprintf(buffer, sizeof(buffer), "%s\n", "none");
+ len += scnprintf(buffer, sizeof(buffer), "%s\n", "none");
}
if (len > *lenp)
@@ -87,19 +87,19 @@ static int do_autoprobe(struct ctl_table *table, int write,
}
if ((str = info->class_name) != NULL)
- len += snprintf (buffer + len, sizeof(buffer) - len, "CLASS:%s;\n", str);
+ len += scnprintf (buffer + len, sizeof(buffer) - len, "CLASS:%s;\n", str);
if ((str = info->model) != NULL)
- len += snprintf (buffer + len, sizeof(buffer) - len, "MODEL:%s;\n", str);
+ len += scnprintf (buffer + len, sizeof(buffer) - len, "MODEL:%s;\n", str);
if ((str = info->mfr) != NULL)
- len += snprintf (buffer + len, sizeof(buffer) - len, "MANUFACTURER:%s;\n", str);
+ len += scnprintf (buffer + len, sizeof(buffer) - len, "MANUFACTURER:%s;\n", str);
if ((str = info->description) != NULL)
- len += snprintf (buffer + len, sizeof(buffer) - len, "DESCRIPTION:%s;\n", str);
+ len += scnprintf (buffer + len, sizeof(buffer) - len, "DESCRIPTION:%s;\n", str);
if ((str = info->cmdset) != NULL)
- len += snprintf (buffer + len, sizeof(buffer) - len, "COMMAND SET:%s;\n", str);
+ len += scnprintf (buffer + len, sizeof(buffer) - len, "COMMAND SET:%s;\n", str);
if (len > *lenp)
len = *lenp;
@@ -128,7 +128,7 @@ static int do_hardware_base_addr(struct ctl_table *table, int write,
if (write) /* permissions prevent this anyway */
return -EACCES;
- len += snprintf (buffer, sizeof(buffer), "%lu\t%lu\n", port->base, port->base_hi);
+ len += scnprintf (buffer, sizeof(buffer), "%lu\t%lu\n", port->base, port->base_hi);
if (len > *lenp)
len = *lenp;
@@ -155,7 +155,7 @@ static int do_hardware_irq(struct ctl_table *table, int write,
if (write) /* permissions prevent this anyway */
return -EACCES;
- len += snprintf (buffer, sizeof(buffer), "%d\n", port->irq);
+ len += scnprintf (buffer, sizeof(buffer), "%d\n", port->irq);
if (len > *lenp)
len = *lenp;
@@ -182,7 +182,7 @@ static int do_hardware_dma(struct ctl_table *table, int write,
if (write) /* permissions prevent this anyway */
return -EACCES;
- len += snprintf (buffer, sizeof(buffer), "%d\n", port->dma);
+ len += scnprintf (buffer, sizeof(buffer), "%d\n", port->dma);
if (len > *lenp)
len = *lenp;
@@ -213,7 +213,7 @@ static int do_hardware_modes(struct ctl_table *table, int write,
#define printmode(x) \
do { \
if (port->modes & PARPORT_MODE_##x) \
- len += snprintf(buffer + len, sizeof(buffer) - len, "%s%s", f++ ? "," : "", #x); \
+ len += scnprintf(buffer + len, sizeof(buffer) - len, "%s%s", f++ ? "," : "", #x); \
} while (0)
int f = 0;
printmode(PCSPP);
diff --git a/drivers/s390/char/sclp_vt220.c b/drivers/s390/char/sclp_vt220.c
index 3c2ed6d01387..d574c167c9dc 100644
--- a/drivers/s390/char/sclp_vt220.c
+++ b/drivers/s390/char/sclp_vt220.c
@@ -325,7 +325,7 @@ sclp_vt220_add_msg(struct sclp_vt220_request *request,
buffer = (void *) ((addr_t) sccb + sccb->header.length);
if (convertlf) {
- /* Perform Linefeed conversion (0x0a -> 0x0a 0x0d)*/
+ /* Perform Linefeed conversion (0x0a -> 0x0d 0x0a)*/
for (from=0, to=0;
(from < count) && (to < sclp_vt220_space_left(request));
from++) {
@@ -334,8 +334,8 @@ sclp_vt220_add_msg(struct sclp_vt220_request *request,
/* Perform conversion */
if (c == 0x0a) {
if (to + 1 < sclp_vt220_space_left(request)) {
- ((unsigned char *) buffer)[to++] = c;
((unsigned char *) buffer)[to++] = 0x0d;
+ ((unsigned char *) buffer)[to++] = c;
} else
break;
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index 5a8443f6ed70..6304e9b00ecc 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -1282,7 +1282,7 @@ enum xhci_setup_dev {
/* Set TR Dequeue Pointer command TRB fields, 6.4.3.9 */
#define TRB_TO_STREAM_ID(p) ((((p) & (0xffff << 16)) >> 16))
#define STREAM_ID_FOR_TRB(p) ((((p)) & 0xffff) << 16)
-#define SCT_FOR_TRB(p) (((p) << 1) & 0x7)
+#define SCT_FOR_TRB(p) (((p) & 0x7) << 1)
/* Link TRB specific fields */
#define TRB_TC (1<<1)
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index c9fade980f36..a71e072722da 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -279,6 +279,7 @@ static void option_instat_callback(struct urb *urb);
#define QUECTEL_PRODUCT_EG912Y 0x6001
#define QUECTEL_PRODUCT_EC200S_CN 0x6002
#define QUECTEL_PRODUCT_EC200A 0x6005
+#define QUECTEL_PRODUCT_EG916Q 0x6007
#define QUECTEL_PRODUCT_EM061K_LWW 0x6008
#define QUECTEL_PRODUCT_EM061K_LCN 0x6009
#define QUECTEL_PRODUCT_EC200T 0x6026
@@ -1270,6 +1271,7 @@ static const struct usb_device_id option_ids[] = {
{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EC200S_CN, 0xff, 0, 0) },
{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EC200T, 0xff, 0, 0) },
{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EG912Y, 0xff, 0, 0) },
+ { USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EG916Q, 0xff, 0x00, 0x00) },
{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_RM500K, 0xff, 0x00, 0x00) },
{ USB_DEVICE(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_6001) },
@@ -1380,10 +1382,16 @@ static const struct usb_device_id option_ids[] = {
.driver_info = NCTRL(0) | RSVD(1) },
{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x10a0, 0xff), /* Telit FN20C04 (rmnet) */
.driver_info = RSVD(0) | NCTRL(3) },
+ { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x10a2, 0xff), /* Telit FN920C04 (MBIM) */
+ .driver_info = NCTRL(4) },
{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x10a4, 0xff), /* Telit FN20C04 (rmnet) */
.driver_info = RSVD(0) | NCTRL(3) },
+ { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x10a7, 0xff), /* Telit FN920C04 (MBIM) */
+ .driver_info = NCTRL(4) },
{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x10a9, 0xff), /* Telit FN20C04 (rmnet) */
.driver_info = RSVD(0) | NCTRL(2) | RSVD(3) | RSVD(4) },
+ { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x10aa, 0xff), /* Telit FN920C04 (MBIM) */
+ .driver_info = NCTRL(3) | RSVD(4) | RSVD(5) },
{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_ME910),
.driver_info = NCTRL(0) | RSVD(1) | RSVD(3) },
{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_ME910_DUAL_MODEM),
diff --git a/fs/fat/namei_vfat.c b/fs/fat/namei_vfat.c
index 0cdd0fb9f742..9bc7d1602c15 100644
--- a/fs/fat/namei_vfat.c
+++ b/fs/fat/namei_vfat.c
@@ -1019,7 +1019,7 @@ static int vfat_rename(struct inode *old_dir, struct dentry *old_dentry,
if (corrupt < 0) {
fat_fs_error(new_dir->i_sb,
"%s: Filesystem corrupted (i_pos %lld)",
- __func__, sinfo.i_pos);
+ __func__, new_i_pos);
}
goto out;
}
diff --git a/fs/nilfs2/dir.c b/fs/nilfs2/dir.c
index 5c0e280c83ee..365cae5c3e35 100644
--- a/fs/nilfs2/dir.c
+++ b/fs/nilfs2/dir.c
@@ -331,6 +331,8 @@ static int nilfs_readdir(struct file *file, struct dir_context *ctx)
* returns the page in which the entry was found, and the entry itself
* (as a parameter - res_dir). Page is returned mapped and unlocked.
* Entry is guaranteed to be valid.
+ *
+ * On failure, returns an error pointer and the caller should ignore res_page.
*/
struct nilfs_dir_entry *
nilfs_find_entry(struct inode *dir, const struct qstr *qstr,
@@ -358,22 +360,24 @@ nilfs_find_entry(struct inode *dir, const struct qstr *qstr,
do {
char *kaddr = nilfs_get_page(dir, n, &page);
- if (!IS_ERR(kaddr)) {
- de = (struct nilfs_dir_entry *)kaddr;
- kaddr += nilfs_last_byte(dir, n) - reclen;
- while ((char *) de <= kaddr) {
- if (de->rec_len == 0) {
- nilfs_error(dir->i_sb,
- "zero-length directory entry");
- nilfs_put_page(page);
- goto out;
- }
- if (nilfs_match(namelen, name, de))
- goto found;
- de = nilfs_next_entry(de);
+ if (IS_ERR(kaddr))
+ return ERR_CAST(kaddr);
+
+ de = (struct nilfs_dir_entry *)kaddr;
+ kaddr += nilfs_last_byte(dir, n) - reclen;
+ while ((char *)de <= kaddr) {
+ if (de->rec_len == 0) {
+ nilfs_error(dir->i_sb,
+ "zero-length directory entry");
+ nilfs_put_page(page);
+ goto out;
}
- nilfs_put_page(page);
+ if (nilfs_match(namelen, name, de))
+ goto found;
+ de = nilfs_next_entry(de);
}
+ nilfs_put_page(page);
+
if (++n >= npages)
n = 0;
/* next page is past the blocks we've got */
@@ -386,7 +390,7 @@ nilfs_find_entry(struct inode *dir, const struct qstr *qstr,
}
} while (n != start);
out:
- return NULL;
+ return ERR_PTR(-ENOENT);
found:
*res_page = page;
@@ -431,19 +435,19 @@ struct nilfs_dir_entry *nilfs_dotdot(struct inode *dir, struct page **p)
return NULL;
}
-ino_t nilfs_inode_by_name(struct inode *dir, const struct qstr *qstr)
+int nilfs_inode_by_name(struct inode *dir, const struct qstr *qstr, ino_t *ino)
{
- ino_t res = 0;
struct nilfs_dir_entry *de;
struct page *page;
de = nilfs_find_entry(dir, qstr, &page);
- if (de) {
- res = le64_to_cpu(de->inode);
- kunmap(page);
- put_page(page);
- }
- return res;
+ if (IS_ERR(de))
+ return PTR_ERR(de);
+
+ *ino = le64_to_cpu(de->inode);
+ kunmap(page);
+ put_page(page);
+ return 0;
}
/* Releases the page */
diff --git a/fs/nilfs2/namei.c b/fs/nilfs2/namei.c
index a6ec7961d4f5..08c6d985edeb 100644
--- a/fs/nilfs2/namei.c
+++ b/fs/nilfs2/namei.c
@@ -55,12 +55,20 @@ nilfs_lookup(struct inode *dir, struct dentry *dentry, unsigned int flags)
{
struct inode *inode;
ino_t ino;
+ int res;
if (dentry->d_name.len > NILFS_NAME_LEN)
return ERR_PTR(-ENAMETOOLONG);
- ino = nilfs_inode_by_name(dir, &dentry->d_name);
- inode = ino ? nilfs_iget(dir->i_sb, NILFS_I(dir)->i_root, ino) : NULL;
+ res = nilfs_inode_by_name(dir, &dentry->d_name, &ino);
+ if (res) {
+ if (res != -ENOENT)
+ return ERR_PTR(res);
+ inode = NULL;
+ } else {
+ inode = nilfs_iget(dir->i_sb, NILFS_I(dir)->i_root, ino);
+ }
+
return d_splice_alias(inode, dentry);
}
@@ -261,10 +269,11 @@ static int nilfs_do_unlink(struct inode *dir, struct dentry *dentry)
struct page *page;
int err;
- err = -ENOENT;
de = nilfs_find_entry(dir, &dentry->d_name, &page);
- if (!de)
+ if (IS_ERR(de)) {
+ err = PTR_ERR(de);
goto out;
+ }
inode = d_inode(dentry);
err = -EIO;
@@ -358,10 +367,11 @@ static int nilfs_rename(struct inode *old_dir, struct dentry *old_dentry,
if (unlikely(err))
return err;
- err = -ENOENT;
old_de = nilfs_find_entry(old_dir, &old_dentry->d_name, &old_page);
- if (!old_de)
+ if (IS_ERR(old_de)) {
+ err = PTR_ERR(old_de);
goto out;
+ }
if (S_ISDIR(old_inode->i_mode)) {
err = -EIO;
@@ -378,10 +388,12 @@ static int nilfs_rename(struct inode *old_dir, struct dentry *old_dentry,
if (dir_de && !nilfs_empty_dir(new_inode))
goto out_dir;
- err = -ENOENT;
- new_de = nilfs_find_entry(new_dir, &new_dentry->d_name, &new_page);
- if (!new_de)
+ new_de = nilfs_find_entry(new_dir, &new_dentry->d_name,
+ &new_page);
+ if (IS_ERR(new_de)) {
+ err = PTR_ERR(new_de);
goto out_dir;
+ }
nilfs_set_link(new_dir, new_de, new_page, old_inode);
nilfs_mark_inode_dirty(new_dir);
new_inode->i_ctime = current_time(new_inode);
@@ -435,14 +447,15 @@ static int nilfs_rename(struct inode *old_dir, struct dentry *old_dentry,
*/
static struct dentry *nilfs_get_parent(struct dentry *child)
{
- unsigned long ino;
+ ino_t ino;
+ int res;
struct inode *inode;
struct qstr dotdot = QSTR_INIT("..", 2);
struct nilfs_root *root;
- ino = nilfs_inode_by_name(d_inode(child), &dotdot);
- if (!ino)
- return ERR_PTR(-ENOENT);
+ res = nilfs_inode_by_name(d_inode(child), &dotdot, &ino);
+ if (res)
+ return ERR_PTR(res);
root = NILFS_I(d_inode(child))->i_root;
diff --git a/fs/nilfs2/nilfs.h b/fs/nilfs2/nilfs.h
index 3f3971e0292d..e1b230a5011a 100644
--- a/fs/nilfs2/nilfs.h
+++ b/fs/nilfs2/nilfs.h
@@ -233,7 +233,7 @@ static inline __u32 nilfs_mask_flags(umode_t mode, __u32 flags)
/* dir.c */
extern int nilfs_add_link(struct dentry *, struct inode *);
-extern ino_t nilfs_inode_by_name(struct inode *, const struct qstr *);
+int nilfs_inode_by_name(struct inode *dir, const struct qstr *qstr, ino_t *ino);
extern int nilfs_make_empty(struct inode *, struct inode *);
extern struct nilfs_dir_entry *
nilfs_find_entry(struct inode *, const struct qstr *, struct page **);
diff --git a/include/linux/fsl/enetc_mdio.h b/include/linux/fsl/enetc_mdio.h
index 2d9203314865..b90c4dc50b7d 100644
--- a/include/linux/fsl/enetc_mdio.h
+++ b/include/linux/fsl/enetc_mdio.h
@@ -48,7 +48,8 @@ static inline int enetc_mdio_read(struct mii_bus *bus, int phy_id, int regnum)
static inline int enetc_mdio_write(struct mii_bus *bus, int phy_id, int regnum,
u16 value)
{ return -EINVAL; }
-struct enetc_hw *enetc_hw_alloc(struct device *dev, void __iomem *port_regs)
+static inline struct enetc_hw *enetc_hw_alloc(struct device *dev,
+ void __iomem *port_regs)
{ return ERR_PTR(-EINVAL); }
#endif
diff --git a/include/linux/irqchip/arm-gic-v4.h b/include/linux/irqchip/arm-gic-v4.h
index 6976b8331b60..74e11617b861 100644
--- a/include/linux/irqchip/arm-gic-v4.h
+++ b/include/linux/irqchip/arm-gic-v4.h
@@ -56,10 +56,12 @@ struct its_vpe {
bool enabled;
bool group;
} sgi_config[16];
- atomic_t vmapp_count;
};
};
+ /* Track the VPE being mapped */
+ atomic_t vmapp_count;
+
/*
* Ensures mutual exclusion between affinity setting of the
* vPE and vLPI operations using vpe->col_idx.
diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c
index 47bc8fe2b945..da07fba75827 100644
--- a/io_uring/io_uring.c
+++ b/io_uring/io_uring.c
@@ -56,6 +56,7 @@
#include <linux/mm.h>
#include <linux/mman.h>
#include <linux/percpu.h>
+#include <linux/cpuset.h>
#include <linux/slab.h>
#include <linux/blkdev.h>
#include <linux/bvec.h>
@@ -1579,7 +1580,14 @@ static inline bool io_sqring_full(struct io_ring_ctx *ctx)
{
struct io_rings *r = ctx->rings;
- return READ_ONCE(r->sq.tail) - ctx->cached_sq_head == ctx->sq_entries;
+ /*
+ * SQPOLL must use the actual sqring head, as using the cached_sq_head
+ * is race prone if the SQPOLL thread has grabbed entries but not yet
+ * committed them to the ring. For !SQPOLL, this doesn't matter, but
+ * since this helper is just used for SQPOLL sqring waits (or POLLOUT),
+ * just read the actual sqring head unconditionally.
+ */
+ return READ_ONCE(r->sq.tail) - READ_ONCE(r->sq.head) == ctx->sq_entries;
}
static inline unsigned int __io_cqring_events(struct io_ring_ctx *ctx)
@@ -8571,11 +8579,22 @@ static int io_sq_offload_create(struct io_ring_ctx *ctx,
return 0;
if (p->flags & IORING_SETUP_SQ_AFF) {
+ cpumask_var_t allowed_mask;
int cpu = p->sq_thread_cpu;
ret = -EINVAL;
if (cpu >= nr_cpu_ids || !cpu_online(cpu))
goto err_sqpoll;
+ ret = -ENOMEM;
+ if (!alloc_cpumask_var(&allowed_mask, GFP_KERNEL))
+ goto err_sqpoll;
+ ret = -EINVAL;
+ cpuset_cpus_allowed(current, allowed_mask);
+ if (!cpumask_test_cpu(cpu, allowed_mask)) {
+ free_cpumask_var(allowed_mask);
+ goto err_sqpoll;
+ }
+ free_cpumask_var(allowed_mask);
sqd->sq_cpu = cpu;
} else {
sqd->sq_cpu = -1;
diff --git a/kernel/time/posix-clock.c b/kernel/time/posix-clock.c
index 77c0c2370b6d..8127673bfc45 100644
--- a/kernel/time/posix-clock.c
+++ b/kernel/time/posix-clock.c
@@ -299,6 +299,9 @@ static int pc_clock_settime(clockid_t id, const struct timespec64 *ts)
goto out;
}
+ if (!timespec64_valid_strict(ts))
+ return -EINVAL;
+
if (cd.clk->ops.clock_settime)
err = cd.clk->ops.clock_settime(cd.clk, ts);
else
diff --git a/mm/swapfile.c b/mm/swapfile.c
index 4ca1d04d8732..914f599fb49f 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -2134,7 +2134,7 @@ static int unuse_mm(struct mm_struct *mm, unsigned int type,
mmap_read_lock(mm);
for (vma = mm->mmap; vma; vma = vma->vm_next) {
- if (vma->anon_vma) {
+ if (vma->anon_vma && !is_vm_hugetlb_page(vma)) {
ret = unuse_vma(vma, type, frontswap,
fs_pages_to_unuse);
if (ret)
diff --git a/net/bluetooth/af_bluetooth.c b/net/bluetooth/af_bluetooth.c
index 14a917e70f3e..0b8400bda73d 100644
--- a/net/bluetooth/af_bluetooth.c
+++ b/net/bluetooth/af_bluetooth.c
@@ -779,6 +779,7 @@ static int __init bt_init(void)
bt_sysfs_cleanup();
cleanup_led:
bt_leds_cleanup();
+ debugfs_remove_recursive(bt_debugfs);
return err;
}
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 68f1633c477a..165be30e42c0 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -2305,7 +2305,7 @@ static bool tcp_can_coalesce_send_queue_head(struct sock *sk, int len)
if (len <= skb->len)
break;
- if (unlikely(TCP_SKB_CB(skb)->eor) || tcp_has_tx_tstamp(skb))
+ if (tcp_has_tx_tstamp(skb) || !tcp_skb_can_collapse(skb, next))
return false;
len -= skb->len;
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 0c3da7771b48..c8d2fe8fbc0a 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -509,6 +509,9 @@ static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
sta->cipher_scheme = cs;
err = ieee80211_key_link(key, sdata, sta);
+ /* KRACK protection, shouldn't happen but just silently accept key */
+ if (err == -EALREADY)
+ err = 0;
out_unlock:
mutex_unlock(&local->sta_mtx);
diff --git a/net/mac80211/key.c b/net/mac80211/key.c
index 6a72c33679ba..6b089594a9f3 100644
--- a/net/mac80211/key.c
+++ b/net/mac80211/key.c
@@ -843,7 +843,7 @@ int ieee80211_key_link(struct ieee80211_key *key,
*/
if (ieee80211_key_identical(sdata, old_key, key)) {
ieee80211_key_free_unused(key);
- ret = 0;
+ ret = -EALREADY;
goto out;
}
diff --git a/net/mptcp/mib.c b/net/mptcp/mib.c
index f4034e000f3e..44d083958d8e 100644
--- a/net/mptcp/mib.c
+++ b/net/mptcp/mib.c
@@ -23,6 +23,8 @@ static const struct snmp_mib mptcp_snmp_list[] = {
SNMP_MIB_ITEM("MPJoinAckRx", MPTCP_MIB_JOINACKRX),
SNMP_MIB_ITEM("MPJoinAckHMacFailure", MPTCP_MIB_JOINACKMAC),
SNMP_MIB_ITEM("DSSNotMatching", MPTCP_MIB_DSSNOMATCH),
+ SNMP_MIB_ITEM("DSSCorruptionFallback", MPTCP_MIB_DSSCORRUPTIONFALLBACK),
+ SNMP_MIB_ITEM("DSSCorruptionReset", MPTCP_MIB_DSSCORRUPTIONRESET),
SNMP_MIB_ITEM("InfiniteMapRx", MPTCP_MIB_INFINITEMAPRX),
SNMP_MIB_ITEM("OFOQueueTail", MPTCP_MIB_OFOQUEUETAIL),
SNMP_MIB_ITEM("OFOQueue", MPTCP_MIB_OFOQUEUE),
diff --git a/net/mptcp/mib.h b/net/mptcp/mib.h
index a9f43ff00b3c..0e17e1cebdbc 100644
--- a/net/mptcp/mib.h
+++ b/net/mptcp/mib.h
@@ -16,6 +16,8 @@ enum linux_mptcp_mib_field {
MPTCP_MIB_JOINACKRX, /* Received an ACK + MP_JOIN */
MPTCP_MIB_JOINACKMAC, /* HMAC was wrong on ACK + MP_JOIN */
MPTCP_MIB_DSSNOMATCH, /* Received a new mapping that did not match the previous one */
+ MPTCP_MIB_DSSCORRUPTIONFALLBACK,/* DSS corruption detected, fallback */
+ MPTCP_MIB_DSSCORRUPTIONRESET, /* DSS corruption detected, MPJ subflow reset */
MPTCP_MIB_INFINITEMAPRX, /* Received an infinite mapping */
MPTCP_MIB_OFOQUEUETAIL, /* Segments inserted into OoO queue tail */
MPTCP_MIB_OFOQUEUE, /* Segments inserted into OoO queue */
diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c
index 590e2c9bb67e..8558309a2d3f 100644
--- a/net/mptcp/protocol.c
+++ b/net/mptcp/protocol.c
@@ -457,6 +457,18 @@ static void mptcp_check_data_fin(struct sock *sk)
}
}
+static void mptcp_dss_corruption(struct mptcp_sock *msk, struct sock *ssk)
+{
+ if (READ_ONCE(msk->allow_infinite_fallback)) {
+ MPTCP_INC_STATS(sock_net(ssk),
+ MPTCP_MIB_DSSCORRUPTIONFALLBACK);
+ mptcp_do_fallback(ssk);
+ } else {
+ MPTCP_INC_STATS(sock_net(ssk), MPTCP_MIB_DSSCORRUPTIONRESET);
+ mptcp_subflow_reset(ssk);
+ }
+}
+
static bool __mptcp_move_skbs_from_subflow(struct mptcp_sock *msk,
struct sock *ssk,
unsigned int *bytes)
@@ -519,10 +531,12 @@ static bool __mptcp_move_skbs_from_subflow(struct mptcp_sock *msk,
moved += len;
seq += len;
- if (WARN_ON_ONCE(map_remaining < len))
- break;
+ if (unlikely(map_remaining < len))
+ mptcp_dss_corruption(msk, ssk);
} else {
- WARN_ON_ONCE(!fin);
+ if (unlikely(!fin))
+ mptcp_dss_corruption(msk, ssk);
+
sk_eat_skb(ssk, skb);
done = true;
}
@@ -1810,9 +1824,11 @@ static void mptcp_worker(struct work_struct *work)
if (!mptcp_ext_cache_refill(msk))
break;
}
- if (copied)
+ if (copied) {
tcp_push(ssk, msg.msg_flags, mss_now, tcp_sk(ssk)->nonagle,
size_goal);
+ WRITE_ONCE(msk->allow_infinite_fallback, false);
+ }
dfrag->data_seq = orig_write_seq;
dfrag->offset = orig_offset;
@@ -1845,6 +1861,7 @@ static int __mptcp_init_sock(struct sock *sk)
msk->first = NULL;
inet_csk(sk)->icsk_sync_mss = mptcp_sync_mss;
+ WRITE_ONCE(msk->allow_infinite_fallback, true);
mptcp_pm_data_init(msk);
@@ -2543,6 +2560,7 @@ bool mptcp_finish_join(struct sock *sk)
if (parent_sock && !sk->sk_socket)
mptcp_sock_graft(sk, parent_sock);
subflow->map_seq = READ_ONCE(msk->ack_seq);
+ WRITE_ONCE(msk->allow_infinite_fallback, false);
return true;
}
diff --git a/net/mptcp/protocol.h b/net/mptcp/protocol.h
index 44944e8f73c5..2330140d6b1c 100644
--- a/net/mptcp/protocol.h
+++ b/net/mptcp/protocol.h
@@ -213,6 +213,7 @@ struct mptcp_sock {
bool rcv_data_fin;
bool snd_data_fin_enable;
bool use_64bit_ack; /* Set when we received a 64-bit DSN */
+ bool allow_infinite_fallback;
spinlock_t join_list_lock;
struct work_struct work;
struct sk_buff *ooo_last_skb;
diff --git a/net/mptcp/subflow.c b/net/mptcp/subflow.c
index 843c61ebd421..c3434069fb0a 100644
--- a/net/mptcp/subflow.c
+++ b/net/mptcp/subflow.c
@@ -702,7 +702,7 @@ static bool skb_is_fully_mapped(struct sock *ssk, struct sk_buff *skb)
unsigned int skb_consumed;
skb_consumed = tcp_sk(ssk)->copied_seq - TCP_SKB_CB(skb)->seq;
- if (WARN_ON_ONCE(skb_consumed >= skb->len))
+ if (unlikely(skb_consumed >= skb->len))
return true;
return skb->len - skb_consumed <= subflow->map_data_len -
@@ -1179,6 +1179,7 @@ int __mptcp_subflow_connect(struct sock *sk, const struct mptcp_addr_info *loc,
list_add_tail(&subflow->node, &msk->join_list);
spin_unlock_bh(&msk->join_list_lock);
+ WRITE_ONCE(msk->allow_infinite_fallback, false);
return err;
failed:
diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c
index 4046ce3db4b5..51d97de74cad 100644
--- a/sound/pci/hda/patch_conexant.c
+++ b/sound/pci/hda/patch_conexant.c
@@ -234,6 +234,7 @@ enum {
CXT_FIXUP_HP_SPECTRE,
CXT_FIXUP_HP_GATE_MIC,
CXT_FIXUP_MUTE_LED_GPIO,
+ CXT_FIXUP_HP_ELITEONE_OUT_DIS,
CXT_FIXUP_HP_ZBOOK_MUTE_LED,
CXT_FIXUP_HEADSET_MIC,
CXT_FIXUP_HP_MIC_NO_PRESENCE,
@@ -251,6 +252,19 @@ static void cxt_fixup_stereo_dmic(struct hda_codec *codec,
spec->gen.inv_dmic_split = 1;
}
+/* fix widget control pin settings */
+static void cxt_fixup_update_pinctl(struct hda_codec *codec,
+ const struct hda_fixup *fix, int action)
+{
+ if (action == HDA_FIXUP_ACT_PROBE) {
+ /* Unset OUT_EN for this Node pin, leaving only HP_EN.
+ * This is the value stored in the codec register after
+ * the correct initialization of the previous windows boot.
+ */
+ snd_hda_set_pin_ctl_cache(codec, 0x1d, AC_PINCTL_HP_EN);
+ }
+}
+
static void cxt5066_increase_mic_boost(struct hda_codec *codec,
const struct hda_fixup *fix, int action)
{
@@ -902,6 +916,10 @@ static const struct hda_fixup cxt_fixups[] = {
.type = HDA_FIXUP_FUNC,
.v.func = cxt_fixup_mute_led_gpio,
},
+ [CXT_FIXUP_HP_ELITEONE_OUT_DIS] = {
+ .type = HDA_FIXUP_FUNC,
+ .v.func = cxt_fixup_update_pinctl,
+ },
[CXT_FIXUP_HP_ZBOOK_MUTE_LED] = {
.type = HDA_FIXUP_FUNC,
.v.func = cxt_fixup_hp_zbook_mute_led,
@@ -992,6 +1010,7 @@ static const struct snd_pci_quirk cxt5066_fixups[] = {
SND_PCI_QUIRK(0x103c, 0x83b2, "HP EliteBook 840 G5", CXT_FIXUP_HP_DOCK),
SND_PCI_QUIRK(0x103c, 0x83b3, "HP EliteBook 830 G5", CXT_FIXUP_HP_DOCK),
SND_PCI_QUIRK(0x103c, 0x83d3, "HP ProBook 640 G4", CXT_FIXUP_HP_DOCK),
+ SND_PCI_QUIRK(0x103c, 0x83e5, "HP EliteOne 1000 G2", CXT_FIXUP_HP_ELITEONE_OUT_DIS),
SND_PCI_QUIRK(0x103c, 0x8402, "HP ProBook 645 G4", CXT_FIXUP_MUTE_LED_GPIO),
SND_PCI_QUIRK(0x103c, 0x8427, "HP ZBook Studio G5", CXT_FIXUP_HP_ZBOOK_MUTE_LED),
SND_PCI_QUIRK(0x103c, 0x844f, "HP ZBook Studio G5", CXT_FIXUP_HP_ZBOOK_MUTE_LED),
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index b7638c3c9eb7..ef66abe687d7 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -3090,12 +3090,13 @@ void kvm_vcpu_on_spin(struct kvm_vcpu *me, bool yield_to_kernel_mode)
{
struct kvm *kvm = me->kvm;
struct kvm_vcpu *vcpu;
- int last_boosted_vcpu = me->kvm->last_boosted_vcpu;
+ int last_boosted_vcpu;
int yielded = 0;
int try = 3;
int pass;
int i;
+ last_boosted_vcpu = READ_ONCE(kvm->last_boosted_vcpu);
kvm_vcpu_set_in_spin_loop(me, true);
/*
* We boost the priority of a VCPU that is runnable but not
@@ -3126,7 +3127,7 @@ void kvm_vcpu_on_spin(struct kvm_vcpu *me, bool yield_to_kernel_mode)
yielded = kvm_vcpu_yield_to(vcpu);
if (yielded > 0) {
- kvm->last_boosted_vcpu = i;
+ WRITE_ONCE(kvm->last_boosted_vcpu, i);
break;
} else if (yielded < 0) {
try--;
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