From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org, akpm@linux-foundation.org,
torvalds@linux-foundation.org, stable@vger.kernel.org
Cc: lwn@lwn.net, jslaby@suse.cz,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Subject: Re: Linux 4.19.158
Date: Thu, 19 Nov 2020 13:14:52 +0100 [thread overview]
Message-ID: <160578809119093@kroah.com> (raw)
In-Reply-To: <160578809133210@kroah.com>
diff --git a/Makefile b/Makefile
index 245bcd8dd7b7..698a9cc2864b 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
VERSION = 4
PATCHLEVEL = 19
-SUBLEVEL = 157
+SUBLEVEL = 158
EXTRAVERSION =
NAME = "People's Front"
diff --git a/arch/arm/include/asm/kprobes.h b/arch/arm/include/asm/kprobes.h
index 82290f212d8e..e1eb662e0f9e 100644
--- a/arch/arm/include/asm/kprobes.h
+++ b/arch/arm/include/asm/kprobes.h
@@ -52,20 +52,20 @@ int kprobe_exceptions_notify(struct notifier_block *self,
unsigned long val, void *data);
/* optinsn template addresses */
-extern __visible kprobe_opcode_t optprobe_template_entry;
-extern __visible kprobe_opcode_t optprobe_template_val;
-extern __visible kprobe_opcode_t optprobe_template_call;
-extern __visible kprobe_opcode_t optprobe_template_end;
-extern __visible kprobe_opcode_t optprobe_template_sub_sp;
-extern __visible kprobe_opcode_t optprobe_template_add_sp;
-extern __visible kprobe_opcode_t optprobe_template_restore_begin;
-extern __visible kprobe_opcode_t optprobe_template_restore_orig_insn;
-extern __visible kprobe_opcode_t optprobe_template_restore_end;
+extern __visible kprobe_opcode_t optprobe_template_entry[];
+extern __visible kprobe_opcode_t optprobe_template_val[];
+extern __visible kprobe_opcode_t optprobe_template_call[];
+extern __visible kprobe_opcode_t optprobe_template_end[];
+extern __visible kprobe_opcode_t optprobe_template_sub_sp[];
+extern __visible kprobe_opcode_t optprobe_template_add_sp[];
+extern __visible kprobe_opcode_t optprobe_template_restore_begin[];
+extern __visible kprobe_opcode_t optprobe_template_restore_orig_insn[];
+extern __visible kprobe_opcode_t optprobe_template_restore_end[];
#define MAX_OPTIMIZED_LENGTH 4
#define MAX_OPTINSN_SIZE \
- ((unsigned long)&optprobe_template_end - \
- (unsigned long)&optprobe_template_entry)
+ ((unsigned long)optprobe_template_end - \
+ (unsigned long)optprobe_template_entry)
#define RELATIVEJUMP_SIZE 4
struct arch_optimized_insn {
diff --git a/arch/arm/probes/kprobes/opt-arm.c b/arch/arm/probes/kprobes/opt-arm.c
index 0dc23fc227ed..cf08cb726767 100644
--- a/arch/arm/probes/kprobes/opt-arm.c
+++ b/arch/arm/probes/kprobes/opt-arm.c
@@ -98,21 +98,21 @@ asm (
"optprobe_template_end:\n");
#define TMPL_VAL_IDX \
- ((unsigned long *)&optprobe_template_val - (unsigned long *)&optprobe_template_entry)
+ ((unsigned long *)optprobe_template_val - (unsigned long *)optprobe_template_entry)
#define TMPL_CALL_IDX \
- ((unsigned long *)&optprobe_template_call - (unsigned long *)&optprobe_template_entry)
+ ((unsigned long *)optprobe_template_call - (unsigned long *)optprobe_template_entry)
#define TMPL_END_IDX \
- ((unsigned long *)&optprobe_template_end - (unsigned long *)&optprobe_template_entry)
+ ((unsigned long *)optprobe_template_end - (unsigned long *)optprobe_template_entry)
#define TMPL_ADD_SP \
- ((unsigned long *)&optprobe_template_add_sp - (unsigned long *)&optprobe_template_entry)
+ ((unsigned long *)optprobe_template_add_sp - (unsigned long *)optprobe_template_entry)
#define TMPL_SUB_SP \
- ((unsigned long *)&optprobe_template_sub_sp - (unsigned long *)&optprobe_template_entry)
+ ((unsigned long *)optprobe_template_sub_sp - (unsigned long *)optprobe_template_entry)
#define TMPL_RESTORE_BEGIN \
- ((unsigned long *)&optprobe_template_restore_begin - (unsigned long *)&optprobe_template_entry)
+ ((unsigned long *)optprobe_template_restore_begin - (unsigned long *)optprobe_template_entry)
#define TMPL_RESTORE_ORIGN_INSN \
- ((unsigned long *)&optprobe_template_restore_orig_insn - (unsigned long *)&optprobe_template_entry)
+ ((unsigned long *)optprobe_template_restore_orig_insn - (unsigned long *)optprobe_template_entry)
#define TMPL_RESTORE_END \
- ((unsigned long *)&optprobe_template_restore_end - (unsigned long *)&optprobe_template_entry)
+ ((unsigned long *)optprobe_template_restore_end - (unsigned long *)optprobe_template_entry)
/*
* ARM can always optimize an instruction when using ARM ISA, except
@@ -247,7 +247,7 @@ int arch_prepare_optimized_kprobe(struct optimized_kprobe *op, struct kprobe *or
}
/* Copy arch-dep-instance from template. */
- memcpy(code, (unsigned long *)&optprobe_template_entry,
+ memcpy(code, (unsigned long *)optprobe_template_entry,
TMPL_END_IDX * sizeof(kprobe_opcode_t));
/* Adjust buffer according to instruction. */
diff --git a/arch/arm64/crypto/aes-modes.S b/arch/arm64/crypto/aes-modes.S
index 483a7130cf0e..496c243de4ac 100644
--- a/arch/arm64/crypto/aes-modes.S
+++ b/arch/arm64/crypto/aes-modes.S
@@ -232,17 +232,19 @@ AES_ENTRY(aes_ctr_encrypt)
bmi .Lctr1x
cmn w6, #4 /* 32 bit overflow? */
bcs .Lctr1x
- ldr q8, =0x30000000200000001 /* addends 1,2,3[,0] */
- dup v7.4s, w6
+ add w7, w6, #1
mov v0.16b, v4.16b
- add v7.4s, v7.4s, v8.4s
+ add w8, w6, #2
mov v1.16b, v4.16b
- rev32 v8.16b, v7.16b
+ add w9, w6, #3
mov v2.16b, v4.16b
+ rev w7, w7
mov v3.16b, v4.16b
- mov v1.s[3], v8.s[0]
- mov v2.s[3], v8.s[1]
- mov v3.s[3], v8.s[2]
+ rev w8, w8
+ mov v1.s[3], w7
+ rev w9, w9
+ mov v2.s[3], w8
+ mov v3.s[3], w9
ld1 {v5.16b-v7.16b}, [x20], #48 /* get 3 input blocks */
bl aes_encrypt_block4x
eor v0.16b, v5.16b, v0.16b
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 8e31dfd85de3..888f247c9261 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -831,7 +831,7 @@ void __init smp_detect_cpus(void)
*/
static void smp_start_secondary(void *cpuvoid)
{
- int cpu = smp_processor_id();
+ int cpu = raw_smp_processor_id();
S390_lowcore.last_update_clock = get_tod_clock();
S390_lowcore.restart_stack = (unsigned long) restart_stack;
@@ -844,6 +844,7 @@ static void smp_start_secondary(void *cpuvoid)
set_cpu_flag(CIF_ASCE_PRIMARY);
set_cpu_flag(CIF_ASCE_SECONDARY);
cpu_init();
+ rcu_cpu_starting(cpu);
preempt_disable();
init_cpu_timer();
vtime_init();
diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c
index bf554ed2fd51..9e482fbdb28f 100644
--- a/arch/x86/kernel/cpu/bugs.c
+++ b/arch/x86/kernel/cpu/bugs.c
@@ -1240,6 +1240,14 @@ static int ssb_prctl_set(struct task_struct *task, unsigned long ctrl)
return 0;
}
+static bool is_spec_ib_user_controlled(void)
+{
+ return spectre_v2_user_ibpb == SPECTRE_V2_USER_PRCTL ||
+ spectre_v2_user_ibpb == SPECTRE_V2_USER_SECCOMP ||
+ spectre_v2_user_stibp == SPECTRE_V2_USER_PRCTL ||
+ spectre_v2_user_stibp == SPECTRE_V2_USER_SECCOMP;
+}
+
static int ib_prctl_set(struct task_struct *task, unsigned long ctrl)
{
switch (ctrl) {
@@ -1247,17 +1255,26 @@ static int ib_prctl_set(struct task_struct *task, unsigned long ctrl)
if (spectre_v2_user_ibpb == SPECTRE_V2_USER_NONE &&
spectre_v2_user_stibp == SPECTRE_V2_USER_NONE)
return 0;
- /*
- * Indirect branch speculation is always disabled in strict
- * mode. It can neither be enabled if it was force-disabled
- * by a previous prctl call.
+ /*
+ * With strict mode for both IBPB and STIBP, the instruction
+ * code paths avoid checking this task flag and instead,
+ * unconditionally run the instruction. However, STIBP and IBPB
+ * are independent and either can be set to conditionally
+ * enabled regardless of the mode of the other.
+ *
+ * If either is set to conditional, allow the task flag to be
+ * updated, unless it was force-disabled by a previous prctl
+ * call. Currently, this is possible on an AMD CPU which has the
+ * feature X86_FEATURE_AMD_STIBP_ALWAYS_ON. In this case, if the
+ * kernel is booted with 'spectre_v2_user=seccomp', then
+ * spectre_v2_user_ibpb == SPECTRE_V2_USER_SECCOMP and
+ * spectre_v2_user_stibp == SPECTRE_V2_USER_STRICT_PREFERRED.
*/
- if (spectre_v2_user_ibpb == SPECTRE_V2_USER_STRICT ||
- spectre_v2_user_stibp == SPECTRE_V2_USER_STRICT ||
- spectre_v2_user_stibp == SPECTRE_V2_USER_STRICT_PREFERRED ||
+ if (!is_spec_ib_user_controlled() ||
task_spec_ib_force_disable(task))
return -EPERM;
+
task_clear_spec_ib_disable(task);
task_update_spec_tif(task);
break;
@@ -1270,10 +1287,10 @@ static int ib_prctl_set(struct task_struct *task, unsigned long ctrl)
if (spectre_v2_user_ibpb == SPECTRE_V2_USER_NONE &&
spectre_v2_user_stibp == SPECTRE_V2_USER_NONE)
return -EPERM;
- if (spectre_v2_user_ibpb == SPECTRE_V2_USER_STRICT ||
- spectre_v2_user_stibp == SPECTRE_V2_USER_STRICT ||
- spectre_v2_user_stibp == SPECTRE_V2_USER_STRICT_PREFERRED)
+
+ if (!is_spec_ib_user_controlled())
return 0;
+
task_set_spec_ib_disable(task);
if (ctrl == PR_SPEC_FORCE_DISABLE)
task_set_spec_ib_force_disable(task);
@@ -1336,20 +1353,17 @@ static int ib_prctl_get(struct task_struct *task)
if (spectre_v2_user_ibpb == SPECTRE_V2_USER_NONE &&
spectre_v2_user_stibp == SPECTRE_V2_USER_NONE)
return PR_SPEC_ENABLE;
- else if (spectre_v2_user_ibpb == SPECTRE_V2_USER_STRICT ||
- spectre_v2_user_stibp == SPECTRE_V2_USER_STRICT ||
- spectre_v2_user_stibp == SPECTRE_V2_USER_STRICT_PREFERRED)
- return PR_SPEC_DISABLE;
- else if (spectre_v2_user_ibpb == SPECTRE_V2_USER_PRCTL ||
- spectre_v2_user_ibpb == SPECTRE_V2_USER_SECCOMP ||
- spectre_v2_user_stibp == SPECTRE_V2_USER_PRCTL ||
- spectre_v2_user_stibp == SPECTRE_V2_USER_SECCOMP) {
+ else if (is_spec_ib_user_controlled()) {
if (task_spec_ib_force_disable(task))
return PR_SPEC_PRCTL | PR_SPEC_FORCE_DISABLE;
if (task_spec_ib_disable(task))
return PR_SPEC_PRCTL | PR_SPEC_DISABLE;
return PR_SPEC_PRCTL | PR_SPEC_ENABLE;
- } else
+ } else if (spectre_v2_user_ibpb == SPECTRE_V2_USER_STRICT ||
+ spectre_v2_user_stibp == SPECTRE_V2_USER_STRICT ||
+ spectre_v2_user_stibp == SPECTRE_V2_USER_STRICT_PREFERRED)
+ return PR_SPEC_DISABLE;
+ else
return PR_SPEC_NOT_AFFECTED;
}
diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index 52e1e71e8124..517318bb350c 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -276,7 +276,7 @@ static void nbd_size_clear(struct nbd_device *nbd)
}
}
-static void nbd_size_update(struct nbd_device *nbd)
+static void nbd_size_update(struct nbd_device *nbd, bool start)
{
struct nbd_config *config = nbd->config;
struct block_device *bdev = bdget_disk(nbd->disk, 0);
@@ -292,7 +292,8 @@ static void nbd_size_update(struct nbd_device *nbd)
if (bdev) {
if (bdev->bd_disk) {
bd_set_size(bdev, config->bytesize);
- set_blocksize(bdev, config->blksize);
+ if (start)
+ set_blocksize(bdev, config->blksize);
} else
bdev->bd_invalidated = 1;
bdput(bdev);
@@ -307,7 +308,7 @@ static void nbd_size_set(struct nbd_device *nbd, loff_t blocksize,
config->blksize = blocksize;
config->bytesize = blocksize * nr_blocks;
if (nbd->task_recv != NULL)
- nbd_size_update(nbd);
+ nbd_size_update(nbd, false);
}
static void nbd_complete_rq(struct request *req)
@@ -1244,7 +1245,7 @@ static int nbd_start_device(struct nbd_device *nbd)
args->index = i;
queue_work(nbd->recv_workq, &args->work);
}
- nbd_size_update(nbd);
+ nbd_size_update(nbd, true);
return error;
}
@@ -1447,6 +1448,7 @@ static void nbd_release(struct gendisk *disk, fmode_t mode)
if (test_bit(NBD_DISCONNECT_ON_CLOSE, &nbd->config->runtime_flags) &&
bdev->bd_openers == 0)
nbd_disconnect_and_put(nbd);
+ bdput(bdev);
nbd_config_put(nbd);
nbd_put(nbd);
diff --git a/drivers/char/random.c b/drivers/char/random.c
index 80dedecfe15c..98925d49c96b 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -1257,7 +1257,6 @@ void add_interrupt_randomness(int irq, int irq_flags)
fast_mix(fast_pool);
add_interrupt_bench(cycles);
- this_cpu_add(net_rand_state.s1, fast_pool->pool[cycles & 3]);
if (unlikely(crng_init == 0)) {
if ((fast_pool->count >= 64) &&
diff --git a/drivers/char/tpm/eventlog/efi.c b/drivers/char/tpm/eventlog/efi.c
index 3e673ab22cb4..abd3beeb5158 100644
--- a/drivers/char/tpm/eventlog/efi.c
+++ b/drivers/char/tpm/eventlog/efi.c
@@ -43,6 +43,11 @@ int tpm_read_log_efi(struct tpm_chip *chip)
log_size = log_tbl->size;
memunmap(log_tbl);
+ if (!log_size) {
+ pr_warn("UEFI TPM log area empty\n");
+ return -EIO;
+ }
+
log_tbl = memremap(efi.tpm_log, sizeof(*log_tbl) + log_size,
MEMREMAP_WB);
if (!log_tbl) {
diff --git a/drivers/char/tpm/tpm_tis.c b/drivers/char/tpm/tpm_tis.c
index f08949a5f678..5a3a4f095391 100644
--- a/drivers/char/tpm/tpm_tis.c
+++ b/drivers/char/tpm/tpm_tis.c
@@ -31,6 +31,7 @@
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/kernel.h>
+#include <linux/dmi.h>
#include "tpm.h"
#include "tpm_tis_core.h"
@@ -53,8 +54,8 @@ static inline struct tpm_tis_tcg_phy *to_tpm_tis_tcg_phy(struct tpm_tis_data *da
return container_of(data, struct tpm_tis_tcg_phy, priv);
}
-static bool interrupts = true;
-module_param(interrupts, bool, 0444);
+static int interrupts = -1;
+module_param(interrupts, int, 0444);
MODULE_PARM_DESC(interrupts, "Enable interrupts");
static bool itpm;
@@ -67,6 +68,28 @@ module_param(force, bool, 0444);
MODULE_PARM_DESC(force, "Force device probe rather than using ACPI entry");
#endif
+static int tpm_tis_disable_irq(const struct dmi_system_id *d)
+{
+ if (interrupts == -1) {
+ pr_notice("tpm_tis: %s detected: disabling interrupts.\n", d->ident);
+ interrupts = 0;
+ }
+
+ return 0;
+}
+
+static const struct dmi_system_id tpm_tis_dmi_table[] = {
+ {
+ .callback = tpm_tis_disable_irq,
+ .ident = "ThinkPad T490s",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T490s"),
+ },
+ },
+ {}
+};
+
#if defined(CONFIG_PNP) && defined(CONFIG_ACPI)
static int has_hid(struct acpi_device *dev, const char *hid)
{
@@ -196,6 +219,8 @@ static int tpm_tis_init(struct device *dev, struct tpm_info *tpm_info)
int irq = -1;
int rc;
+ dmi_check_system(tpm_tis_dmi_table);
+
rc = check_acpi_tpm2(dev);
if (rc)
return rc;
diff --git a/drivers/gpio/gpio-pcie-idio-24.c b/drivers/gpio/gpio-pcie-idio-24.c
index f953541e7890..634125747a03 100644
--- a/drivers/gpio/gpio-pcie-idio-24.c
+++ b/drivers/gpio/gpio-pcie-idio-24.c
@@ -28,6 +28,47 @@
#include <linux/spinlock.h>
#include <linux/types.h>
+/*
+ * PLX PEX8311 PCI LCS_INTCSR Interrupt Control/Status
+ *
+ * Bit: Description
+ * 0: Enable Interrupt Sources (Bit 0)
+ * 1: Enable Interrupt Sources (Bit 1)
+ * 2: Generate Internal PCI Bus Internal SERR# Interrupt
+ * 3: Mailbox Interrupt Enable
+ * 4: Power Management Interrupt Enable
+ * 5: Power Management Interrupt
+ * 6: Slave Read Local Data Parity Check Error Enable
+ * 7: Slave Read Local Data Parity Check Error Status
+ * 8: Internal PCI Wire Interrupt Enable
+ * 9: PCI Express Doorbell Interrupt Enable
+ * 10: PCI Abort Interrupt Enable
+ * 11: Local Interrupt Input Enable
+ * 12: Retry Abort Enable
+ * 13: PCI Express Doorbell Interrupt Active
+ * 14: PCI Abort Interrupt Active
+ * 15: Local Interrupt Input Active
+ * 16: Local Interrupt Output Enable
+ * 17: Local Doorbell Interrupt Enable
+ * 18: DMA Channel 0 Interrupt Enable
+ * 19: DMA Channel 1 Interrupt Enable
+ * 20: Local Doorbell Interrupt Active
+ * 21: DMA Channel 0 Interrupt Active
+ * 22: DMA Channel 1 Interrupt Active
+ * 23: Built-In Self-Test (BIST) Interrupt Active
+ * 24: Direct Master was the Bus Master during a Master or Target Abort
+ * 25: DMA Channel 0 was the Bus Master during a Master or Target Abort
+ * 26: DMA Channel 1 was the Bus Master during a Master or Target Abort
+ * 27: Target Abort after internal 256 consecutive Master Retrys
+ * 28: PCI Bus wrote data to LCS_MBOX0
+ * 29: PCI Bus wrote data to LCS_MBOX1
+ * 30: PCI Bus wrote data to LCS_MBOX2
+ * 31: PCI Bus wrote data to LCS_MBOX3
+ */
+#define PLX_PEX8311_PCI_LCS_INTCSR 0x68
+#define INTCSR_INTERNAL_PCI_WIRE BIT(8)
+#define INTCSR_LOCAL_INPUT BIT(11)
+
/**
* struct idio_24_gpio_reg - GPIO device registers structure
* @out0_7: Read: FET Outputs 0-7
@@ -92,6 +133,7 @@ struct idio_24_gpio_reg {
struct idio_24_gpio {
struct gpio_chip chip;
raw_spinlock_t lock;
+ __u8 __iomem *plx;
struct idio_24_gpio_reg __iomem *reg;
unsigned long irq_mask;
};
@@ -360,13 +402,13 @@ static void idio_24_irq_mask(struct irq_data *data)
unsigned long flags;
const unsigned long bit_offset = irqd_to_hwirq(data) - 24;
unsigned char new_irq_mask;
- const unsigned long bank_offset = bit_offset/8 * 8;
+ const unsigned long bank_offset = bit_offset / 8;
unsigned char cos_enable_state;
raw_spin_lock_irqsave(&idio24gpio->lock, flags);
- idio24gpio->irq_mask &= BIT(bit_offset);
- new_irq_mask = idio24gpio->irq_mask >> bank_offset;
+ idio24gpio->irq_mask &= ~BIT(bit_offset);
+ new_irq_mask = idio24gpio->irq_mask >> bank_offset * 8;
if (!new_irq_mask) {
cos_enable_state = ioread8(&idio24gpio->reg->cos_enable);
@@ -389,12 +431,12 @@ static void idio_24_irq_unmask(struct irq_data *data)
unsigned long flags;
unsigned char prev_irq_mask;
const unsigned long bit_offset = irqd_to_hwirq(data) - 24;
- const unsigned long bank_offset = bit_offset/8 * 8;
+ const unsigned long bank_offset = bit_offset / 8;
unsigned char cos_enable_state;
raw_spin_lock_irqsave(&idio24gpio->lock, flags);
- prev_irq_mask = idio24gpio->irq_mask >> bank_offset;
+ prev_irq_mask = idio24gpio->irq_mask >> bank_offset * 8;
idio24gpio->irq_mask |= BIT(bit_offset);
if (!prev_irq_mask) {
@@ -481,6 +523,7 @@ static int idio_24_probe(struct pci_dev *pdev, const struct pci_device_id *id)
struct device *const dev = &pdev->dev;
struct idio_24_gpio *idio24gpio;
int err;
+ const size_t pci_plx_bar_index = 1;
const size_t pci_bar_index = 2;
const char *const name = pci_name(pdev);
@@ -494,12 +537,13 @@ static int idio_24_probe(struct pci_dev *pdev, const struct pci_device_id *id)
return err;
}
- err = pcim_iomap_regions(pdev, BIT(pci_bar_index), name);
+ err = pcim_iomap_regions(pdev, BIT(pci_plx_bar_index) | BIT(pci_bar_index), name);
if (err) {
dev_err(dev, "Unable to map PCI I/O addresses (%d)\n", err);
return err;
}
+ idio24gpio->plx = pcim_iomap_table(pdev)[pci_plx_bar_index];
idio24gpio->reg = pcim_iomap_table(pdev)[pci_bar_index];
idio24gpio->chip.label = name;
@@ -520,6 +564,12 @@ static int idio_24_probe(struct pci_dev *pdev, const struct pci_device_id *id)
/* Software board reset */
iowrite8(0, &idio24gpio->reg->soft_reset);
+ /*
+ * enable PLX PEX8311 internal PCI wire interrupt and local interrupt
+ * input
+ */
+ iowrite8((INTCSR_INTERNAL_PCI_WIRE | INTCSR_LOCAL_INPUT) >> 8,
+ idio24gpio->plx + PLX_PEX8311_PCI_LCS_INTCSR + 1);
err = devm_gpiochip_add_data(dev, &idio24gpio->chip, idio24gpio);
if (err) {
diff --git a/drivers/gpu/drm/amd/amdgpu/cik_sdma.c b/drivers/gpu/drm/amd/amdgpu/cik_sdma.c
index d0fa2aac2388..ca66c2f79758 100644
--- a/drivers/gpu/drm/amd/amdgpu/cik_sdma.c
+++ b/drivers/gpu/drm/amd/amdgpu/cik_sdma.c
@@ -1086,22 +1086,19 @@ static int cik_sdma_soft_reset(void *handle)
{
u32 srbm_soft_reset = 0;
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
- u32 tmp = RREG32(mmSRBM_STATUS2);
+ u32 tmp;
- if (tmp & SRBM_STATUS2__SDMA_BUSY_MASK) {
- /* sdma0 */
- tmp = RREG32(mmSDMA0_F32_CNTL + SDMA0_REGISTER_OFFSET);
- tmp |= SDMA0_F32_CNTL__HALT_MASK;
- WREG32(mmSDMA0_F32_CNTL + SDMA0_REGISTER_OFFSET, tmp);
- srbm_soft_reset |= SRBM_SOFT_RESET__SOFT_RESET_SDMA_MASK;
- }
- if (tmp & SRBM_STATUS2__SDMA1_BUSY_MASK) {
- /* sdma1 */
- tmp = RREG32(mmSDMA0_F32_CNTL + SDMA1_REGISTER_OFFSET);
- tmp |= SDMA0_F32_CNTL__HALT_MASK;
- WREG32(mmSDMA0_F32_CNTL + SDMA1_REGISTER_OFFSET, tmp);
- srbm_soft_reset |= SRBM_SOFT_RESET__SOFT_RESET_SDMA1_MASK;
- }
+ /* sdma0 */
+ tmp = RREG32(mmSDMA0_F32_CNTL + SDMA0_REGISTER_OFFSET);
+ tmp |= SDMA0_F32_CNTL__HALT_MASK;
+ WREG32(mmSDMA0_F32_CNTL + SDMA0_REGISTER_OFFSET, tmp);
+ srbm_soft_reset |= SRBM_SOFT_RESET__SOFT_RESET_SDMA_MASK;
+
+ /* sdma1 */
+ tmp = RREG32(mmSDMA0_F32_CNTL + SDMA1_REGISTER_OFFSET);
+ tmp |= SDMA0_F32_CNTL__HALT_MASK;
+ WREG32(mmSDMA0_F32_CNTL + SDMA1_REGISTER_OFFSET, tmp);
+ srbm_soft_reset |= SRBM_SOFT_RESET__SOFT_RESET_SDMA1_MASK;
if (srbm_soft_reset) {
tmp = RREG32(mmSRBM_SOFT_RESET);
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
index 058898b321b8..d8e624d64ae3 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
@@ -1531,6 +1531,10 @@ int smu7_disable_dpm_tasks(struct pp_hwmgr *hwmgr)
PP_ASSERT_WITH_CODE((tmp_result == 0),
"Failed to reset to default!", result = tmp_result);
+ tmp_result = smum_stop_smc(hwmgr);
+ PP_ASSERT_WITH_CODE((tmp_result == 0),
+ "Failed to stop smc!", result = tmp_result);
+
tmp_result = smu7_force_switch_to_arbf0(hwmgr);
PP_ASSERT_WITH_CODE((tmp_result == 0),
"Failed to force to switch arbf0!", result = tmp_result);
diff --git a/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h b/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h
index 6ee864455a12..f59e1e737735 100644
--- a/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h
+++ b/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h
@@ -216,6 +216,7 @@ struct pp_smumgr_func {
bool (*is_hw_avfs_present)(struct pp_hwmgr *hwmgr);
int (*update_dpm_settings)(struct pp_hwmgr *hwmgr, void *profile_setting);
int (*smc_table_manager)(struct pp_hwmgr *hwmgr, uint8_t *table, uint16_t table_id, bool rw); /*rw: true for read, false for write */
+ int (*stop_smc)(struct pp_hwmgr *hwmgr);
};
struct pp_hwmgr_func {
diff --git a/drivers/gpu/drm/amd/powerplay/inc/smumgr.h b/drivers/gpu/drm/amd/powerplay/inc/smumgr.h
index 82550a8a3a3f..ef4f2392e2e7 100644
--- a/drivers/gpu/drm/amd/powerplay/inc/smumgr.h
+++ b/drivers/gpu/drm/amd/powerplay/inc/smumgr.h
@@ -113,4 +113,6 @@ extern int smum_update_dpm_settings(struct pp_hwmgr *hwmgr, void *profile_settin
extern int smum_smc_table_manager(struct pp_hwmgr *hwmgr, uint8_t *table, uint16_t table_id, bool rw);
+extern int smum_stop_smc(struct pp_hwmgr *hwmgr);
+
#endif
diff --git a/drivers/gpu/drm/amd/powerplay/smumgr/ci_smumgr.c b/drivers/gpu/drm/amd/powerplay/smumgr/ci_smumgr.c
index db87cb8930d2..c05bec5effb2 100644
--- a/drivers/gpu/drm/amd/powerplay/smumgr/ci_smumgr.c
+++ b/drivers/gpu/drm/amd/powerplay/smumgr/ci_smumgr.c
@@ -2723,10 +2723,7 @@ static int ci_initialize_mc_reg_table(struct pp_hwmgr *hwmgr)
static bool ci_is_dpm_running(struct pp_hwmgr *hwmgr)
{
- return (1 == PHM_READ_INDIRECT_FIELD(hwmgr->device,
- CGS_IND_REG__SMC, FEATURE_STATUS,
- VOLTAGE_CONTROLLER_ON))
- ? true : false;
+ return ci_is_smc_ram_running(hwmgr);
}
static int ci_smu_init(struct pp_hwmgr *hwmgr)
@@ -2934,6 +2931,29 @@ static int ci_update_smc_table(struct pp_hwmgr *hwmgr, uint32_t type)
return 0;
}
+static void ci_reset_smc(struct pp_hwmgr *hwmgr)
+{
+ PHM_WRITE_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC,
+ SMC_SYSCON_RESET_CNTL,
+ rst_reg, 1);
+}
+
+
+static void ci_stop_smc_clock(struct pp_hwmgr *hwmgr)
+{
+ PHM_WRITE_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC,
+ SMC_SYSCON_CLOCK_CNTL_0,
+ ck_disable, 1);
+}
+
+static int ci_stop_smc(struct pp_hwmgr *hwmgr)
+{
+ ci_reset_smc(hwmgr);
+ ci_stop_smc_clock(hwmgr);
+
+ return 0;
+}
+
const struct pp_smumgr_func ci_smu_funcs = {
.smu_init = ci_smu_init,
.smu_fini = ci_smu_fini,
@@ -2957,4 +2977,5 @@ const struct pp_smumgr_func ci_smu_funcs = {
.is_dpm_running = ci_is_dpm_running,
.update_dpm_settings = ci_update_dpm_settings,
.update_smc_table = ci_update_smc_table,
+ .stop_smc = ci_stop_smc,
};
diff --git a/drivers/gpu/drm/amd/powerplay/smumgr/smumgr.c b/drivers/gpu/drm/amd/powerplay/smumgr/smumgr.c
index a6edd5df33b0..20ecf994d47f 100644
--- a/drivers/gpu/drm/amd/powerplay/smumgr/smumgr.c
+++ b/drivers/gpu/drm/amd/powerplay/smumgr/smumgr.c
@@ -213,3 +213,11 @@ int smum_smc_table_manager(struct pp_hwmgr *hwmgr, uint8_t *table, uint16_t tabl
return -EINVAL;
}
+
+int smum_stop_smc(struct pp_hwmgr *hwmgr)
+{
+ if (hwmgr->smumgr_funcs->stop_smc)
+ return hwmgr->smumgr_funcs->stop_smc(hwmgr);
+
+ return 0;
+}
diff --git a/drivers/gpu/drm/gma500/psb_irq.c b/drivers/gpu/drm/gma500/psb_irq.c
index 78eb10902809..076b6da44f46 100644
--- a/drivers/gpu/drm/gma500/psb_irq.c
+++ b/drivers/gpu/drm/gma500/psb_irq.c
@@ -350,6 +350,7 @@ int psb_irq_postinstall(struct drm_device *dev)
{
struct drm_psb_private *dev_priv = dev->dev_private;
unsigned long irqflags;
+ unsigned int i;
spin_lock_irqsave(&dev_priv->irqmask_lock, irqflags);
@@ -362,20 +363,12 @@ int psb_irq_postinstall(struct drm_device *dev)
PSB_WVDC32(dev_priv->vdc_irq_mask, PSB_INT_ENABLE_R);
PSB_WVDC32(0xFFFFFFFF, PSB_HWSTAM);
- if (dev->vblank[0].enabled)
- psb_enable_pipestat(dev_priv, 0, PIPE_VBLANK_INTERRUPT_ENABLE);
- else
- psb_disable_pipestat(dev_priv, 0, PIPE_VBLANK_INTERRUPT_ENABLE);
-
- if (dev->vblank[1].enabled)
- psb_enable_pipestat(dev_priv, 1, PIPE_VBLANK_INTERRUPT_ENABLE);
- else
- psb_disable_pipestat(dev_priv, 1, PIPE_VBLANK_INTERRUPT_ENABLE);
-
- if (dev->vblank[2].enabled)
- psb_enable_pipestat(dev_priv, 2, PIPE_VBLANK_INTERRUPT_ENABLE);
- else
- psb_disable_pipestat(dev_priv, 2, PIPE_VBLANK_INTERRUPT_ENABLE);
+ for (i = 0; i < dev->num_crtcs; ++i) {
+ if (dev->vblank[i].enabled)
+ psb_enable_pipestat(dev_priv, i, PIPE_VBLANK_INTERRUPT_ENABLE);
+ else
+ psb_disable_pipestat(dev_priv, i, PIPE_VBLANK_INTERRUPT_ENABLE);
+ }
if (dev_priv->ops->hotplug_enable)
dev_priv->ops->hotplug_enable(dev, true);
@@ -388,6 +381,7 @@ void psb_irq_uninstall(struct drm_device *dev)
{
struct drm_psb_private *dev_priv = dev->dev_private;
unsigned long irqflags;
+ unsigned int i;
spin_lock_irqsave(&dev_priv->irqmask_lock, irqflags);
@@ -396,14 +390,10 @@ void psb_irq_uninstall(struct drm_device *dev)
PSB_WVDC32(0xFFFFFFFF, PSB_HWSTAM);
- if (dev->vblank[0].enabled)
- psb_disable_pipestat(dev_priv, 0, PIPE_VBLANK_INTERRUPT_ENABLE);
-
- if (dev->vblank[1].enabled)
- psb_disable_pipestat(dev_priv, 1, PIPE_VBLANK_INTERRUPT_ENABLE);
-
- if (dev->vblank[2].enabled)
- psb_disable_pipestat(dev_priv, 2, PIPE_VBLANK_INTERRUPT_ENABLE);
+ for (i = 0; i < dev->num_crtcs; ++i) {
+ if (dev->vblank[i].enabled)
+ psb_disable_pipestat(dev_priv, i, PIPE_VBLANK_INTERRUPT_ENABLE);
+ }
dev_priv->vdc_irq_mask &= _PSB_IRQ_SGX_FLAG |
_PSB_IRQ_MSVDX_FLAG |
diff --git a/drivers/hv/hv_balloon.c b/drivers/hv/hv_balloon.c
index 9ca0706a9d40..e5fc719a34e7 100644
--- a/drivers/hv/hv_balloon.c
+++ b/drivers/hv/hv_balloon.c
@@ -1275,7 +1275,7 @@ static void balloon_up(struct work_struct *dummy)
/* Refuse to balloon below the floor. */
if (avail_pages < num_pages || avail_pages - num_pages < floor) {
- pr_warn("Balloon request will be partially fulfilled. %s\n",
+ pr_info("Balloon request will be partially fulfilled. %s\n",
avail_pages < num_pages ? "Not enough memory." :
"Balloon floor reached.");
diff --git a/drivers/iommu/amd_iommu_types.h b/drivers/iommu/amd_iommu_types.h
index 859b06424e5c..df6f3cc958e5 100644
--- a/drivers/iommu/amd_iommu_types.h
+++ b/drivers/iommu/amd_iommu_types.h
@@ -410,7 +410,11 @@ extern bool amd_iommu_np_cache;
/* Only true if all IOMMUs support device IOTLBs */
extern bool amd_iommu_iotlb_sup;
-#define MAX_IRQS_PER_TABLE 256
+/*
+ * AMD IOMMU hardware only support 512 IRTEs despite
+ * the architectural limitation of 2048 entries.
+ */
+#define MAX_IRQS_PER_TABLE 512
#define IRQ_TABLE_ALIGNMENT 128
struct irq_remap_table {
diff --git a/drivers/mfd/sprd-sc27xx-spi.c b/drivers/mfd/sprd-sc27xx-spi.c
index 69df27769c21..3ba8cfa4b3b7 100644
--- a/drivers/mfd/sprd-sc27xx-spi.c
+++ b/drivers/mfd/sprd-sc27xx-spi.c
@@ -212,7 +212,7 @@ static int sprd_pmic_probe(struct spi_device *spi)
}
ret = devm_regmap_add_irq_chip(&spi->dev, ddata->regmap, ddata->irq,
- IRQF_ONESHOT | IRQF_NO_SUSPEND, 0,
+ IRQF_ONESHOT, 0,
&ddata->irq_chip, &ddata->irq_data);
if (ret) {
dev_err(&spi->dev, "Failed to add PMIC irq chip %d\n", ret);
@@ -228,9 +228,34 @@ static int sprd_pmic_probe(struct spi_device *spi)
return ret;
}
+ device_init_wakeup(&spi->dev, true);
return 0;
}
+#ifdef CONFIG_PM_SLEEP
+static int sprd_pmic_suspend(struct device *dev)
+{
+ struct sprd_pmic *ddata = dev_get_drvdata(dev);
+
+ if (device_may_wakeup(dev))
+ enable_irq_wake(ddata->irq);
+
+ return 0;
+}
+
+static int sprd_pmic_resume(struct device *dev)
+{
+ struct sprd_pmic *ddata = dev_get_drvdata(dev);
+
+ if (device_may_wakeup(dev))
+ disable_irq_wake(ddata->irq);
+
+ return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(sprd_pmic_pm_ops, sprd_pmic_suspend, sprd_pmic_resume);
+
static const struct of_device_id sprd_pmic_match[] = {
{ .compatible = "sprd,sc2731", .data = &sc2731_data },
{},
@@ -242,6 +267,7 @@ static struct spi_driver sprd_pmic_driver = {
.name = "sc27xx-pmic",
.bus = &spi_bus_type,
.of_match_table = sprd_pmic_match,
+ .pm = &sprd_pmic_pm_ops,
},
.probe = sprd_pmic_probe,
};
diff --git a/drivers/misc/mei/client.h b/drivers/misc/mei/client.h
index 64e318f589b4..0d23efcc74ff 100644
--- a/drivers/misc/mei/client.h
+++ b/drivers/misc/mei/client.h
@@ -138,11 +138,11 @@ static inline u8 mei_cl_me_id(const struct mei_cl *cl)
*
* @cl: host client
*
- * Return: mtu
+ * Return: mtu or 0 if client is not connected
*/
static inline size_t mei_cl_mtu(const struct mei_cl *cl)
{
- return cl->me_cl->props.max_msg_length;
+ return cl->me_cl ? cl->me_cl->props.max_msg_length : 0;
}
/**
diff --git a/drivers/mmc/host/renesas_sdhi_core.c b/drivers/mmc/host/renesas_sdhi_core.c
index 61f0faddfd88..e8ab582551f8 100644
--- a/drivers/mmc/host/renesas_sdhi_core.c
+++ b/drivers/mmc/host/renesas_sdhi_core.c
@@ -764,6 +764,7 @@ int renesas_sdhi_remove(struct platform_device *pdev)
tmio_mmc_host_remove(host);
renesas_sdhi_clk_disable(host);
+ tmio_mmc_host_free(host);
return 0;
}
diff --git a/drivers/net/can/dev.c b/drivers/net/can/dev.c
index 1545f2b299d0..1950b13f22df 100644
--- a/drivers/net/can/dev.c
+++ b/drivers/net/can/dev.c
@@ -493,9 +493,13 @@ struct sk_buff *__can_get_echo_skb(struct net_device *dev, unsigned int idx, u8
*/
struct sk_buff *skb = priv->echo_skb[idx];
struct canfd_frame *cf = (struct canfd_frame *)skb->data;
- u8 len = cf->len;
- *len_ptr = len;
+ /* get the real payload length for netdev statistics */
+ if (cf->can_id & CAN_RTR_FLAG)
+ *len_ptr = 0;
+ else
+ *len_ptr = cf->len;
+
priv->echo_skb[idx] = NULL;
return skb;
@@ -520,7 +524,11 @@ unsigned int can_get_echo_skb(struct net_device *dev, unsigned int idx)
if (!skb)
return 0;
- netif_rx(skb);
+ skb_get(skb);
+ if (netif_rx(skb) == NET_RX_SUCCESS)
+ dev_consume_skb_any(skb);
+ else
+ dev_kfree_skb_any(skb);
return len;
}
diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c
index 0be8db6ab319..92fe345e48ab 100644
--- a/drivers/net/can/flexcan.c
+++ b/drivers/net/can/flexcan.c
@@ -301,8 +301,7 @@ static const struct flexcan_devtype_data fsl_vf610_devtype_data = {
static const struct flexcan_devtype_data fsl_ls1021a_r2_devtype_data = {
.quirks = FLEXCAN_QUIRK_DISABLE_RXFG | FLEXCAN_QUIRK_ENABLE_EACEN_RRS |
- FLEXCAN_QUIRK_DISABLE_MECR | FLEXCAN_QUIRK_BROKEN_PERR_STATE |
- FLEXCAN_QUIRK_USE_OFF_TIMESTAMP,
+ FLEXCAN_QUIRK_BROKEN_PERR_STATE | FLEXCAN_QUIRK_USE_OFF_TIMESTAMP,
};
static const struct can_bittiming_const flexcan_bittiming_const = {
diff --git a/drivers/net/can/peak_canfd/peak_canfd.c b/drivers/net/can/peak_canfd/peak_canfd.c
index 5696d7e80751..4bc5d522c74b 100644
--- a/drivers/net/can/peak_canfd/peak_canfd.c
+++ b/drivers/net/can/peak_canfd/peak_canfd.c
@@ -256,8 +256,7 @@ static int pucan_handle_can_rx(struct peak_canfd_priv *priv,
cf_len = get_can_dlc(pucan_msg_get_dlc(msg));
/* if this frame is an echo, */
- if ((rx_msg_flags & PUCAN_MSG_LOOPED_BACK) &&
- !(rx_msg_flags & PUCAN_MSG_SELF_RECEIVE)) {
+ if (rx_msg_flags & PUCAN_MSG_LOOPED_BACK) {
unsigned long flags;
spin_lock_irqsave(&priv->echo_lock, flags);
@@ -271,7 +270,13 @@ static int pucan_handle_can_rx(struct peak_canfd_priv *priv,
netif_wake_queue(priv->ndev);
spin_unlock_irqrestore(&priv->echo_lock, flags);
- return 0;
+
+ /* if this frame is only an echo, stop here. Otherwise,
+ * continue to push this application self-received frame into
+ * its own rx queue.
+ */
+ if (!(rx_msg_flags & PUCAN_MSG_SELF_RECEIVE))
+ return 0;
}
/* otherwise, it should be pushed into rx fifo */
diff --git a/drivers/net/can/rx-offload.c b/drivers/net/can/rx-offload.c
index 5f7e97d54733..5cf4171df1f4 100644
--- a/drivers/net/can/rx-offload.c
+++ b/drivers/net/can/rx-offload.c
@@ -281,7 +281,7 @@ int can_rx_offload_queue_sorted(struct can_rx_offload *offload,
if (skb_queue_len(&offload->skb_queue) >
offload->skb_queue_len_max) {
- kfree_skb(skb);
+ dev_kfree_skb_any(skb);
return -ENOBUFS;
}
@@ -326,7 +326,7 @@ int can_rx_offload_queue_tail(struct can_rx_offload *offload,
{
if (skb_queue_len(&offload->skb_queue) >
offload->skb_queue_len_max) {
- kfree_skb(skb);
+ dev_kfree_skb_any(skb);
return -ENOBUFS;
}
diff --git a/drivers/net/can/usb/peak_usb/pcan_usb_core.c b/drivers/net/can/usb/peak_usb/pcan_usb_core.c
index afc8d978124e..db156a11e6db 100644
--- a/drivers/net/can/usb/peak_usb/pcan_usb_core.c
+++ b/drivers/net/can/usb/peak_usb/pcan_usb_core.c
@@ -138,14 +138,55 @@ void peak_usb_get_ts_time(struct peak_time_ref *time_ref, u32 ts, ktime_t *time)
/* protect from getting time before setting now */
if (ktime_to_ns(time_ref->tv_host)) {
u64 delta_us;
+ s64 delta_ts = 0;
+
+ /* General case: dev_ts_1 < dev_ts_2 < ts, with:
+ *
+ * - dev_ts_1 = previous sync timestamp
+ * - dev_ts_2 = last sync timestamp
+ * - ts = event timestamp
+ * - ts_period = known sync period (theoretical)
+ * ~ dev_ts2 - dev_ts1
+ * *but*:
+ *
+ * - time counters wrap (see adapter->ts_used_bits)
+ * - sometimes, dev_ts_1 < ts < dev_ts2
+ *
+ * "normal" case (sync time counters increase):
+ * must take into account case when ts wraps (tsw)
+ *
+ * < ts_period > < >
+ * | | |
+ * ---+--------+----+-------0-+--+-->
+ * ts_dev_1 | ts_dev_2 |
+ * ts tsw
+ */
+ if (time_ref->ts_dev_1 < time_ref->ts_dev_2) {
+ /* case when event time (tsw) wraps */
+ if (ts < time_ref->ts_dev_1)
+ delta_ts = 1 << time_ref->adapter->ts_used_bits;
+
+ /* Otherwise, sync time counter (ts_dev_2) has wrapped:
+ * handle case when event time (tsn) hasn't.
+ *
+ * < ts_period > < >
+ * | | |
+ * ---+--------+--0-+---------+--+-->
+ * ts_dev_1 | ts_dev_2 |
+ * tsn ts
+ */
+ } else if (time_ref->ts_dev_1 < ts) {
+ delta_ts = -(1 << time_ref->adapter->ts_used_bits);
+ }
- delta_us = ts - time_ref->ts_dev_2;
- if (ts < time_ref->ts_dev_2)
- delta_us &= (1 << time_ref->adapter->ts_used_bits) - 1;
+ /* add delay between last sync and event timestamps */
+ delta_ts += (signed int)(ts - time_ref->ts_dev_2);
- delta_us += time_ref->ts_total;
+ /* add time from beginning to last sync */
+ delta_ts += time_ref->ts_total;
- delta_us *= time_ref->adapter->us_per_ts_scale;
+ /* convert ticks number into microseconds */
+ delta_us = delta_ts * time_ref->adapter->us_per_ts_scale;
delta_us >>= time_ref->adapter->us_per_ts_shift;
*time = ktime_add_us(time_ref->tv_host_0, delta_us);
diff --git a/drivers/net/can/usb/peak_usb/pcan_usb_fd.c b/drivers/net/can/usb/peak_usb/pcan_usb_fd.c
index 41988358f63c..19600d35aac5 100644
--- a/drivers/net/can/usb/peak_usb/pcan_usb_fd.c
+++ b/drivers/net/can/usb/peak_usb/pcan_usb_fd.c
@@ -476,12 +476,18 @@ static int pcan_usb_fd_decode_canmsg(struct pcan_usb_fd_if *usb_if,
struct pucan_msg *rx_msg)
{
struct pucan_rx_msg *rm = (struct pucan_rx_msg *)rx_msg;
- struct peak_usb_device *dev = usb_if->dev[pucan_msg_get_channel(rm)];
- struct net_device *netdev = dev->netdev;
+ struct peak_usb_device *dev;
+ struct net_device *netdev;
struct canfd_frame *cfd;
struct sk_buff *skb;
const u16 rx_msg_flags = le16_to_cpu(rm->flags);
+ if (pucan_msg_get_channel(rm) >= ARRAY_SIZE(usb_if->dev))
+ return -ENOMEM;
+
+ dev = usb_if->dev[pucan_msg_get_channel(rm)];
+ netdev = dev->netdev;
+
if (rx_msg_flags & PUCAN_MSG_EXT_DATA_LEN) {
/* CANFD frame case */
skb = alloc_canfd_skb(netdev, &cfd);
@@ -527,15 +533,21 @@ static int pcan_usb_fd_decode_status(struct pcan_usb_fd_if *usb_if,
struct pucan_msg *rx_msg)
{
struct pucan_status_msg *sm = (struct pucan_status_msg *)rx_msg;
- struct peak_usb_device *dev = usb_if->dev[pucan_stmsg_get_channel(sm)];
- struct pcan_usb_fd_device *pdev =
- container_of(dev, struct pcan_usb_fd_device, dev);
+ struct pcan_usb_fd_device *pdev;
enum can_state new_state = CAN_STATE_ERROR_ACTIVE;
enum can_state rx_state, tx_state;
- struct net_device *netdev = dev->netdev;
+ struct peak_usb_device *dev;
+ struct net_device *netdev;
struct can_frame *cf;
struct sk_buff *skb;
+ if (pucan_stmsg_get_channel(sm) >= ARRAY_SIZE(usb_if->dev))
+ return -ENOMEM;
+
+ dev = usb_if->dev[pucan_stmsg_get_channel(sm)];
+ pdev = container_of(dev, struct pcan_usb_fd_device, dev);
+ netdev = dev->netdev;
+
/* nothing should be sent while in BUS_OFF state */
if (dev->can.state == CAN_STATE_BUS_OFF)
return 0;
@@ -587,9 +599,14 @@ static int pcan_usb_fd_decode_error(struct pcan_usb_fd_if *usb_if,
struct pucan_msg *rx_msg)
{
struct pucan_error_msg *er = (struct pucan_error_msg *)rx_msg;
- struct peak_usb_device *dev = usb_if->dev[pucan_ermsg_get_channel(er)];
- struct pcan_usb_fd_device *pdev =
- container_of(dev, struct pcan_usb_fd_device, dev);
+ struct pcan_usb_fd_device *pdev;
+ struct peak_usb_device *dev;
+
+ if (pucan_ermsg_get_channel(er) >= ARRAY_SIZE(usb_if->dev))
+ return -EINVAL;
+
+ dev = usb_if->dev[pucan_ermsg_get_channel(er)];
+ pdev = container_of(dev, struct pcan_usb_fd_device, dev);
/* keep a trace of tx and rx error counters for later use */
pdev->bec.txerr = er->tx_err_cnt;
@@ -603,11 +620,17 @@ static int pcan_usb_fd_decode_overrun(struct pcan_usb_fd_if *usb_if,
struct pucan_msg *rx_msg)
{
struct pcan_ufd_ovr_msg *ov = (struct pcan_ufd_ovr_msg *)rx_msg;
- struct peak_usb_device *dev = usb_if->dev[pufd_omsg_get_channel(ov)];
- struct net_device *netdev = dev->netdev;
+ struct peak_usb_device *dev;
+ struct net_device *netdev;
struct can_frame *cf;
struct sk_buff *skb;
+ if (pufd_omsg_get_channel(ov) >= ARRAY_SIZE(usb_if->dev))
+ return -EINVAL;
+
+ dev = usb_if->dev[pufd_omsg_get_channel(ov)];
+ netdev = dev->netdev;
+
/* allocate an skb to store the error frame */
skb = alloc_can_err_skb(netdev, &cf);
if (!skb)
@@ -724,6 +747,9 @@ static int pcan_usb_fd_encode_msg(struct peak_usb_device *dev,
u16 tx_msg_size, tx_msg_flags;
u8 can_dlc;
+ if (cfd->len > CANFD_MAX_DLEN)
+ return -EINVAL;
+
tx_msg_size = ALIGN(sizeof(struct pucan_tx_msg) + cfd->len, 4);
tx_msg->size = cpu_to_le16(tx_msg_size);
tx_msg->type = cpu_to_le16(PUCAN_MSG_CAN_TX);
diff --git a/drivers/net/ethernet/microchip/lan743x_main.c b/drivers/net/ethernet/microchip/lan743x_main.c
index 208341541087..085fdceb3821 100644
--- a/drivers/net/ethernet/microchip/lan743x_main.c
+++ b/drivers/net/ethernet/microchip/lan743x_main.c
@@ -672,14 +672,12 @@ static int lan743x_intr_open(struct lan743x_adapter *adapter)
static int lan743x_dp_write(struct lan743x_adapter *adapter,
u32 select, u32 addr, u32 length, u32 *buf)
{
- int ret = -EIO;
u32 dp_sel;
int i;
- mutex_lock(&adapter->dp_lock);
if (lan743x_csr_wait_for_bit(adapter, DP_SEL, DP_SEL_DPRDY_,
1, 40, 100, 100))
- goto unlock;
+ return -EIO;
dp_sel = lan743x_csr_read(adapter, DP_SEL);
dp_sel &= ~DP_SEL_MASK_;
dp_sel |= select;
@@ -691,13 +689,10 @@ static int lan743x_dp_write(struct lan743x_adapter *adapter,
lan743x_csr_write(adapter, DP_CMD, DP_CMD_WRITE_);
if (lan743x_csr_wait_for_bit(adapter, DP_SEL, DP_SEL_DPRDY_,
1, 40, 100, 100))
- goto unlock;
+ return -EIO;
}
- ret = 0;
-unlock:
- mutex_unlock(&adapter->dp_lock);
- return ret;
+ return 0;
}
static u32 lan743x_mac_mii_access(u16 id, u16 index, int read)
@@ -2679,7 +2674,6 @@ static int lan743x_hardware_init(struct lan743x_adapter *adapter,
adapter->intr.irq = adapter->pdev->irq;
lan743x_csr_write(adapter, INT_EN_CLR, 0xFFFFFFFF);
- mutex_init(&adapter->dp_lock);
ret = lan743x_gpio_init(adapter);
if (ret)
diff --git a/drivers/net/ethernet/microchip/lan743x_main.h b/drivers/net/ethernet/microchip/lan743x_main.h
index 2d6eea18973e..77273be2d1ee 100644
--- a/drivers/net/ethernet/microchip/lan743x_main.h
+++ b/drivers/net/ethernet/microchip/lan743x_main.h
@@ -702,9 +702,6 @@ struct lan743x_adapter {
struct lan743x_csr csr;
struct lan743x_intr intr;
- /* lock, used to prevent concurrent access to data port */
- struct mutex dp_lock;
-
struct lan743x_gpio gpio;
struct lan743x_ptp ptp;
diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c
index 1555c0dae490..c7ce167c67a0 100644
--- a/drivers/net/ethernet/realtek/r8169.c
+++ b/drivers/net/ethernet/realtek/r8169.c
@@ -6274,7 +6274,8 @@ static bool rtl8169_tso_csum_v2(struct rtl8169_private *tp,
opts[1] |= transport_offset << TCPHO_SHIFT;
} else {
if (unlikely(rtl_test_hw_pad_bug(tp, skb)))
- return !eth_skb_pad(skb);
+ /* eth_skb_pad would free the skb on error */
+ return !__skb_put_padto(skb, ETH_ZLEN, false);
}
return true;
diff --git a/drivers/net/vrf.c b/drivers/net/vrf.c
index b55eeb8f8fa3..93899a7be9c5 100644
--- a/drivers/net/vrf.c
+++ b/drivers/net/vrf.c
@@ -336,8 +336,7 @@ static netdev_tx_t vrf_xmit(struct sk_buff *skb, struct net_device *dev)
return ret;
}
-static int vrf_finish_direct(struct net *net, struct sock *sk,
- struct sk_buff *skb)
+static void vrf_finish_direct(struct sk_buff *skb)
{
struct net_device *vrf_dev = skb->dev;
@@ -356,7 +355,8 @@ static int vrf_finish_direct(struct net *net, struct sock *sk,
skb_pull(skb, ETH_HLEN);
}
- return 1;
+ /* reset skb device */
+ nf_reset(skb);
}
#if IS_ENABLED(CONFIG_IPV6)
@@ -435,15 +435,41 @@ static struct sk_buff *vrf_ip6_out_redirect(struct net_device *vrf_dev,
return skb;
}
+static int vrf_output6_direct_finish(struct net *net, struct sock *sk,
+ struct sk_buff *skb)
+{
+ vrf_finish_direct(skb);
+
+ return vrf_ip6_local_out(net, sk, skb);
+}
+
static int vrf_output6_direct(struct net *net, struct sock *sk,
struct sk_buff *skb)
{
+ int err = 1;
+
skb->protocol = htons(ETH_P_IPV6);
- return NF_HOOK_COND(NFPROTO_IPV6, NF_INET_POST_ROUTING,
- net, sk, skb, NULL, skb->dev,
- vrf_finish_direct,
- !(IPCB(skb)->flags & IPSKB_REROUTED));
+ if (!(IPCB(skb)->flags & IPSKB_REROUTED))
+ err = nf_hook(NFPROTO_IPV6, NF_INET_POST_ROUTING, net, sk, skb,
+ NULL, skb->dev, vrf_output6_direct_finish);
+
+ if (likely(err == 1))
+ vrf_finish_direct(skb);
+
+ return err;
+}
+
+static int vrf_ip6_out_direct_finish(struct net *net, struct sock *sk,
+ struct sk_buff *skb)
+{
+ int err;
+
+ err = vrf_output6_direct(net, sk, skb);
+ if (likely(err == 1))
+ err = vrf_ip6_local_out(net, sk, skb);
+
+ return err;
}
static struct sk_buff *vrf_ip6_out_direct(struct net_device *vrf_dev,
@@ -456,18 +482,15 @@ static struct sk_buff *vrf_ip6_out_direct(struct net_device *vrf_dev,
skb->dev = vrf_dev;
err = nf_hook(NFPROTO_IPV6, NF_INET_LOCAL_OUT, net, sk,
- skb, NULL, vrf_dev, vrf_output6_direct);
+ skb, NULL, vrf_dev, vrf_ip6_out_direct_finish);
if (likely(err == 1))
err = vrf_output6_direct(net, sk, skb);
- /* reset skb device */
if (likely(err == 1))
- nf_reset(skb);
- else
- skb = NULL;
+ return skb;
- return skb;
+ return NULL;
}
static struct sk_buff *vrf_ip6_out(struct net_device *vrf_dev,
@@ -649,15 +672,41 @@ static struct sk_buff *vrf_ip_out_redirect(struct net_device *vrf_dev,
return skb;
}
+static int vrf_output_direct_finish(struct net *net, struct sock *sk,
+ struct sk_buff *skb)
+{
+ vrf_finish_direct(skb);
+
+ return vrf_ip_local_out(net, sk, skb);
+}
+
static int vrf_output_direct(struct net *net, struct sock *sk,
struct sk_buff *skb)
{
+ int err = 1;
+
skb->protocol = htons(ETH_P_IP);
- return NF_HOOK_COND(NFPROTO_IPV4, NF_INET_POST_ROUTING,
- net, sk, skb, NULL, skb->dev,
- vrf_finish_direct,
- !(IPCB(skb)->flags & IPSKB_REROUTED));
+ if (!(IPCB(skb)->flags & IPSKB_REROUTED))
+ err = nf_hook(NFPROTO_IPV4, NF_INET_POST_ROUTING, net, sk, skb,
+ NULL, skb->dev, vrf_output_direct_finish);
+
+ if (likely(err == 1))
+ vrf_finish_direct(skb);
+
+ return err;
+}
+
+static int vrf_ip_out_direct_finish(struct net *net, struct sock *sk,
+ struct sk_buff *skb)
+{
+ int err;
+
+ err = vrf_output_direct(net, sk, skb);
+ if (likely(err == 1))
+ err = vrf_ip_local_out(net, sk, skb);
+
+ return err;
}
static struct sk_buff *vrf_ip_out_direct(struct net_device *vrf_dev,
@@ -670,18 +719,15 @@ static struct sk_buff *vrf_ip_out_direct(struct net_device *vrf_dev,
skb->dev = vrf_dev;
err = nf_hook(NFPROTO_IPV4, NF_INET_LOCAL_OUT, net, sk,
- skb, NULL, vrf_dev, vrf_output_direct);
+ skb, NULL, vrf_dev, vrf_ip_out_direct_finish);
if (likely(err == 1))
err = vrf_output_direct(net, sk, skb);
- /* reset skb device */
if (likely(err == 1))
- nf_reset(skb);
- else
- skb = NULL;
+ return skb;
- return skb;
+ return NULL;
}
static struct sk_buff *vrf_ip_out(struct net_device *vrf_dev,
diff --git a/drivers/net/wan/cosa.c b/drivers/net/wan/cosa.c
index f6b000ddcd15..b7bfc0caa5dc 100644
--- a/drivers/net/wan/cosa.c
+++ b/drivers/net/wan/cosa.c
@@ -902,6 +902,7 @@ static ssize_t cosa_write(struct file *file,
chan->tx_status = 1;
spin_unlock_irqrestore(&cosa->lock, flags);
up(&chan->wsem);
+ kfree(kbuf);
return -ERESTARTSYS;
}
}
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c b/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c
index f19393e584dc..d567fbe79cff 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c
@@ -973,7 +973,7 @@ static bool ath9k_rx_prepare(struct ath9k_htc_priv *priv,
struct ath_htc_rx_status *rxstatus;
struct ath_rx_status rx_stats;
bool decrypt_error = false;
- __be16 rs_datalen;
+ u16 rs_datalen;
bool is_phyerr;
if (skb->len < HTC_RX_FRAME_HEADER_SIZE) {
diff --git a/drivers/of/address.c b/drivers/of/address.c
index c42aebba35ab..30806dd35735 100644
--- a/drivers/of/address.c
+++ b/drivers/of/address.c
@@ -975,11 +975,13 @@ EXPORT_SYMBOL_GPL(of_dma_get_range);
*/
bool of_dma_is_coherent(struct device_node *np)
{
- struct device_node *node = of_node_get(np);
+ struct device_node *node;
if (IS_ENABLED(CONFIG_OF_DMA_DEFAULT_COHERENT))
return true;
+ node = of_node_get(np);
+
while (node) {
if (of_property_read_bool(node, "dma-coherent")) {
of_node_put(node);
diff --git a/drivers/pinctrl/aspeed/pinctrl-aspeed.c b/drivers/pinctrl/aspeed/pinctrl-aspeed.c
index aefe3c33dffd..8dec302dc067 100644
--- a/drivers/pinctrl/aspeed/pinctrl-aspeed.c
+++ b/drivers/pinctrl/aspeed/pinctrl-aspeed.c
@@ -458,13 +458,14 @@ int aspeed_pinmux_set_mux(struct pinctrl_dev *pctldev, unsigned int function,
static bool aspeed_expr_is_gpio(const struct aspeed_sig_expr *expr)
{
/*
- * The signal type is GPIO if the signal name has "GPIO" as a prefix.
+ * The signal type is GPIO if the signal name has "GPI" as a prefix.
* strncmp (rather than strcmp) is used to implement the prefix
* requirement.
*
- * expr->signal might look like "GPIOT3" in the GPIO case.
+ * expr->signal might look like "GPIOB1" in the GPIO case.
+ * expr->signal might look like "GPIT0" in the GPI case.
*/
- return strncmp(expr->signal, "GPIO", 4) == 0;
+ return strncmp(expr->signal, "GPI", 3) == 0;
}
static bool aspeed_gpio_in_exprs(const struct aspeed_sig_expr **exprs)
diff --git a/drivers/pinctrl/intel/pinctrl-intel.c b/drivers/pinctrl/intel/pinctrl-intel.c
index 89ff2795a8b5..5e0adb00b430 100644
--- a/drivers/pinctrl/intel/pinctrl-intel.c
+++ b/drivers/pinctrl/intel/pinctrl-intel.c
@@ -621,6 +621,10 @@ static int intel_config_set_pull(struct intel_pinctrl *pctrl, unsigned pin,
value |= PADCFG1_TERM_UP;
+ /* Set default strength value in case none is given */
+ if (arg == 1)
+ arg = 5000;
+
switch (arg) {
case 20000:
value |= PADCFG1_TERM_20K << PADCFG1_TERM_SHIFT;
@@ -643,6 +647,10 @@ static int intel_config_set_pull(struct intel_pinctrl *pctrl, unsigned pin,
case PIN_CONFIG_BIAS_PULL_DOWN:
value &= ~(PADCFG1_TERM_UP | PADCFG1_TERM_MASK);
+ /* Set default strength value in case none is given */
+ if (arg == 1)
+ arg = 5000;
+
switch (arg) {
case 20000:
value |= PADCFG1_TERM_20K << PADCFG1_TERM_SHIFT;
diff --git a/drivers/pinctrl/pinctrl-amd.c b/drivers/pinctrl/pinctrl-amd.c
index b1ffdd3f6d07..d6255049e519 100644
--- a/drivers/pinctrl/pinctrl-amd.c
+++ b/drivers/pinctrl/pinctrl-amd.c
@@ -157,7 +157,7 @@ static int amd_gpio_set_debounce(struct gpio_chip *gc, unsigned offset,
pin_reg |= BIT(DB_TMR_OUT_UNIT_OFF);
pin_reg &= ~BIT(DB_TMR_LARGE_OFF);
} else if (debounce < 250000) {
- time = debounce / 15600;
+ time = debounce / 15625;
pin_reg |= time & DB_TMR_OUT_MASK;
pin_reg &= ~BIT(DB_TMR_OUT_UNIT_OFF);
pin_reg |= BIT(DB_TMR_LARGE_OFF);
@@ -167,14 +167,14 @@ static int amd_gpio_set_debounce(struct gpio_chip *gc, unsigned offset,
pin_reg |= BIT(DB_TMR_OUT_UNIT_OFF);
pin_reg |= BIT(DB_TMR_LARGE_OFF);
} else {
- pin_reg &= ~DB_CNTRl_MASK;
+ pin_reg &= ~(DB_CNTRl_MASK << DB_CNTRL_OFF);
ret = -EINVAL;
}
} else {
pin_reg &= ~BIT(DB_TMR_OUT_UNIT_OFF);
pin_reg &= ~BIT(DB_TMR_LARGE_OFF);
pin_reg &= ~DB_TMR_OUT_MASK;
- pin_reg &= ~DB_CNTRl_MASK;
+ pin_reg &= ~(DB_CNTRl_MASK << DB_CNTRL_OFF);
}
writel(pin_reg, gpio_dev->base + offset * 4);
raw_spin_unlock_irqrestore(&gpio_dev->lock, flags);
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index c290c8942131..ad5235ca8e4e 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -3405,6 +3405,8 @@ static int _regulator_get_voltage(struct regulator_dev *rdev)
ret = rdev->desc->fixed_uV;
} else if (rdev->supply) {
ret = _regulator_get_voltage(rdev->supply->rdev);
+ } else if (rdev->supply_name) {
+ return -EPROBE_DEFER;
} else {
return -EINVAL;
}
diff --git a/drivers/scsi/device_handler/scsi_dh_alua.c b/drivers/scsi/device_handler/scsi_dh_alua.c
index c95c782b93a5..60c48dc5d945 100644
--- a/drivers/scsi/device_handler/scsi_dh_alua.c
+++ b/drivers/scsi/device_handler/scsi_dh_alua.c
@@ -672,8 +672,8 @@ static int alua_rtpg(struct scsi_device *sdev, struct alua_port_group *pg)
rcu_read_lock();
list_for_each_entry_rcu(h,
&tmp_pg->dh_list, node) {
- /* h->sdev should always be valid */
- BUG_ON(!h->sdev);
+ if (!h->sdev)
+ continue;
h->sdev->access_state = desc[0];
}
rcu_read_unlock();
@@ -719,7 +719,8 @@ static int alua_rtpg(struct scsi_device *sdev, struct alua_port_group *pg)
pg->expiry = 0;
rcu_read_lock();
list_for_each_entry_rcu(h, &pg->dh_list, node) {
- BUG_ON(!h->sdev);
+ if (!h->sdev)
+ continue;
h->sdev->access_state =
(pg->state & SCSI_ACCESS_STATE_MASK);
if (pg->pref)
@@ -1160,7 +1161,6 @@ static void alua_bus_detach(struct scsi_device *sdev)
spin_lock(&h->pg_lock);
pg = rcu_dereference_protected(h->pg, lockdep_is_held(&h->pg_lock));
rcu_assign_pointer(h->pg, NULL);
- h->sdev = NULL;
spin_unlock(&h->pg_lock);
if (pg) {
spin_lock_irq(&pg->lock);
@@ -1169,6 +1169,7 @@ static void alua_bus_detach(struct scsi_device *sdev)
kref_put(&pg->kref, release_port_group);
}
sdev->handler_data = NULL;
+ synchronize_rcu();
kfree(h);
}
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index 11de2198bb87..0fe21cbdf0ca 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -8781,7 +8781,7 @@ static int hpsa_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
/* hook into SCSI subsystem */
rc = hpsa_scsi_add_host(h);
if (rc)
- goto clean7; /* perf, sg, cmd, irq, shost, pci, lu, aer/h */
+ goto clean8; /* lastlogicals, perf, sg, cmd, irq, shost, pci, lu, aer/h */
/* Monitor the controller for firmware lockups */
h->heartbeat_sample_interval = HEARTBEAT_SAMPLE_INTERVAL;
@@ -8796,6 +8796,8 @@ static int hpsa_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
HPSA_EVENT_MONITOR_INTERVAL);
return 0;
+clean8: /* lastlogicals, perf, sg, cmd, irq, shost, pci, lu, aer/h */
+ kfree(h->lastlogicals);
clean7: /* perf, sg, cmd, irq, shost, pci, lu, aer/h */
hpsa_free_performant_mode(h);
h->access.set_intr_mask(h, HPSA_INTR_OFF);
diff --git a/drivers/staging/erofs/inode.c b/drivers/staging/erofs/inode.c
index 7448744cc515..12a5be95457f 100644
--- a/drivers/staging/erofs/inode.c
+++ b/drivers/staging/erofs/inode.c
@@ -53,11 +53,9 @@ static int read_inode(struct inode *inode, void *data)
i_gid_write(inode, le32_to_cpu(v2->i_gid));
set_nlink(inode, le32_to_cpu(v2->i_nlink));
- /* ns timestamp */
- inode->i_mtime.tv_sec = inode->i_ctime.tv_sec =
- le64_to_cpu(v2->i_ctime);
- inode->i_mtime.tv_nsec = inode->i_ctime.tv_nsec =
- le32_to_cpu(v2->i_ctime_nsec);
+ /* extended inode has its own timestamp */
+ inode->i_ctime.tv_sec = le64_to_cpu(v2->i_ctime);
+ inode->i_ctime.tv_nsec = le32_to_cpu(v2->i_ctime_nsec);
inode->i_size = le64_to_cpu(v2->i_size);
} else if (__inode_version(advise) == EROFS_INODE_LAYOUT_V1) {
@@ -83,11 +81,9 @@ static int read_inode(struct inode *inode, void *data)
i_gid_write(inode, le16_to_cpu(v1->i_gid));
set_nlink(inode, le16_to_cpu(v1->i_nlink));
- /* use build time to derive all file time */
- inode->i_mtime.tv_sec = inode->i_ctime.tv_sec =
- sbi->build_time;
- inode->i_mtime.tv_nsec = inode->i_ctime.tv_nsec =
- sbi->build_time_nsec;
+ /* use build time for compact inodes */
+ inode->i_ctime.tv_sec = sbi->build_time;
+ inode->i_ctime.tv_nsec = sbi->build_time_nsec;
inode->i_size = le32_to_cpu(v1->i_size);
} else {
@@ -97,6 +93,11 @@ static int read_inode(struct inode *inode, void *data)
return -EIO;
}
+ inode->i_mtime.tv_sec = inode->i_ctime.tv_sec;
+ inode->i_atime.tv_sec = inode->i_ctime.tv_sec;
+ inode->i_mtime.tv_nsec = inode->i_ctime.tv_nsec;
+ inode->i_atime.tv_nsec = inode->i_ctime.tv_nsec;
+
/* measure inode.i_blocks as the generic filesystem */
inode->i_blocks = ((inode->i_size - 1) >> 9) + 1;
return 0;
diff --git a/drivers/thunderbolt/nhi.c b/drivers/thunderbolt/nhi.c
index d436a1534fc2..384623c49cfe 100644
--- a/drivers/thunderbolt/nhi.c
+++ b/drivers/thunderbolt/nhi.c
@@ -408,12 +408,23 @@ static int ring_request_msix(struct tb_ring *ring, bool no_suspend)
ring->vector = ret;
- ring->irq = pci_irq_vector(ring->nhi->pdev, ring->vector);
- if (ring->irq < 0)
- return ring->irq;
+ ret = pci_irq_vector(ring->nhi->pdev, ring->vector);
+ if (ret < 0)
+ goto err_ida_remove;
+
+ ring->irq = ret;
irqflags = no_suspend ? IRQF_NO_SUSPEND : 0;
- return request_irq(ring->irq, ring_msix, irqflags, "thunderbolt", ring);
+ ret = request_irq(ring->irq, ring_msix, irqflags, "thunderbolt", ring);
+ if (ret)
+ goto err_ida_remove;
+
+ return 0;
+
+err_ida_remove:
+ ida_simple_remove(&nhi->msix_ida, ring->vector);
+
+ return ret;
}
static void ring_release_msix(struct tb_ring *ring)
diff --git a/drivers/thunderbolt/xdomain.c b/drivers/thunderbolt/xdomain.c
index befe75490697..4eb51a123a6f 100644
--- a/drivers/thunderbolt/xdomain.c
+++ b/drivers/thunderbolt/xdomain.c
@@ -774,6 +774,7 @@ static void enumerate_services(struct tb_xdomain *xd)
id = ida_simple_get(&xd->service_ids, 0, 0, GFP_KERNEL);
if (id < 0) {
+ kfree(svc->key);
kfree(svc);
break;
}
diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c
index 3926be659147..0e3e16c51d3a 100644
--- a/drivers/uio/uio.c
+++ b/drivers/uio/uio.c
@@ -413,10 +413,10 @@ static int uio_get_minor(struct uio_device *idev)
return retval;
}
-static void uio_free_minor(struct uio_device *idev)
+static void uio_free_minor(unsigned long minor)
{
mutex_lock(&minor_lock);
- idr_remove(&uio_idr, idev->minor);
+ idr_remove(&uio_idr, minor);
mutex_unlock(&minor_lock);
}
@@ -988,7 +988,7 @@ int __uio_register_device(struct module *owner,
err_uio_dev_add_attributes:
device_del(&idev->dev);
err_device_create:
- uio_free_minor(idev);
+ uio_free_minor(idev->minor);
put_device(&idev->dev);
return ret;
}
@@ -1002,11 +1002,13 @@ EXPORT_SYMBOL_GPL(__uio_register_device);
void uio_unregister_device(struct uio_info *info)
{
struct uio_device *idev;
+ unsigned long minor;
if (!info || !info->uio_dev)
return;
idev = info->uio_dev;
+ minor = idev->minor;
mutex_lock(&idev->info_lock);
uio_dev_del_attributes(idev);
@@ -1019,7 +1021,7 @@ void uio_unregister_device(struct uio_info *info)
device_unregister(&idev->dev);
- uio_free_minor(idev);
+ uio_free_minor(minor);
return;
}
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 08751d1a765f..e0d8da4e3967 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -1738,6 +1738,15 @@ static const struct usb_device_id acm_ids[] = {
{ USB_DEVICE(0x0870, 0x0001), /* Metricom GS Modem */
.driver_info = NO_UNION_NORMAL, /* has no union descriptor */
},
+ { USB_DEVICE(0x045b, 0x023c), /* Renesas USB Download mode */
+ .driver_info = DISABLE_ECHO, /* Don't echo banner */
+ },
+ { USB_DEVICE(0x045b, 0x0248), /* Renesas USB Download mode */
+ .driver_info = DISABLE_ECHO, /* Don't echo banner */
+ },
+ { USB_DEVICE(0x045b, 0x024D), /* Renesas USB Download mode */
+ .driver_info = DISABLE_ECHO, /* Don't echo banner */
+ },
{ USB_DEVICE(0x0e8d, 0x0003), /* FIREFLY, MediaTek Inc; andrey.arapov@gmail.com */
.driver_info = NO_UNION_NORMAL, /* has no union descriptor */
},
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index f0d2f0a4e990..6ab5c48f5d87 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -2386,6 +2386,11 @@ static int dwc3_gadget_ep_cleanup_completed_request(struct dwc3_ep *dep,
ret = dwc3_gadget_ep_reclaim_trb_linear(dep, req, event,
status);
+ req->request.actual = req->request.length - req->remaining;
+
+ if (!dwc3_gadget_ep_request_completed(req))
+ goto out;
+
if (req->needs_extra_trb) {
unsigned int maxp = usb_endpoint_maxp(dep->endpoint.desc);
@@ -2401,13 +2406,6 @@ static int dwc3_gadget_ep_cleanup_completed_request(struct dwc3_ep *dep,
req->needs_extra_trb = false;
}
- req->request.actual = req->request.length - req->remaining;
-
- if (!dwc3_gadget_ep_request_completed(req)) {
- __dwc3_gadget_kick_transfer(dep);
- goto out;
- }
-
dwc3_gadget_giveback(dep, req, status);
out:
@@ -2430,6 +2428,24 @@ static void dwc3_gadget_ep_cleanup_completed_requests(struct dwc3_ep *dep,
}
}
+static bool dwc3_gadget_ep_should_continue(struct dwc3_ep *dep)
+{
+ struct dwc3_request *req;
+
+ if (!list_empty(&dep->pending_list))
+ return true;
+
+ /*
+ * We only need to check the first entry of the started list. We can
+ * assume the completed requests are removed from the started list.
+ */
+ req = next_request(&dep->started_list);
+ if (!req)
+ return false;
+
+ return !dwc3_gadget_ep_request_completed(req);
+}
+
static void dwc3_gadget_endpoint_frame_from_event(struct dwc3_ep *dep,
const struct dwc3_event_depevt *event)
{
@@ -2459,6 +2475,8 @@ static void dwc3_gadget_endpoint_transfer_in_progress(struct dwc3_ep *dep,
if (stop)
dwc3_stop_active_transfer(dep, true, true);
+ else if (dwc3_gadget_ep_should_continue(dep))
+ __dwc3_gadget_kick_transfer(dep);
/*
* WORKAROUND: This is the 2nd half of U1/U2 -> U0 workaround.
diff --git a/drivers/usb/gadget/udc/goku_udc.c b/drivers/usb/gadget/udc/goku_udc.c
index c3721225b61e..b706ad3034bc 100644
--- a/drivers/usb/gadget/udc/goku_udc.c
+++ b/drivers/usb/gadget/udc/goku_udc.c
@@ -1757,6 +1757,7 @@ static int goku_probe(struct pci_dev *pdev, const struct pci_device_id *id)
goto err;
}
+ pci_set_drvdata(pdev, dev);
spin_lock_init(&dev->lock);
dev->pdev = pdev;
dev->gadget.ops = &goku_ops;
@@ -1790,7 +1791,6 @@ static int goku_probe(struct pci_dev *pdev, const struct pci_device_id *id)
}
dev->regs = (struct goku_udc_regs __iomem *) base;
- pci_set_drvdata(pdev, dev);
INFO(dev, "%s\n", driver_desc);
INFO(dev, "version: " DRIVER_VERSION " %s\n", dmastr());
INFO(dev, "irq %d, pci mem %p\n", pdev->irq, base);
diff --git a/drivers/usb/host/xhci-histb.c b/drivers/usb/host/xhci-histb.c
index 3c4abb5a1c3f..73aba464b66a 100644
--- a/drivers/usb/host/xhci-histb.c
+++ b/drivers/usb/host/xhci-histb.c
@@ -241,7 +241,7 @@ static int xhci_histb_probe(struct platform_device *pdev)
/* Initialize dma_mask and coherent_dma_mask to 32-bits */
ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32));
if (ret)
- return ret;
+ goto disable_pm;
hcd = usb_create_hcd(driver, dev, dev_name(dev));
if (!hcd) {
diff --git a/drivers/vfio/platform/vfio_platform_common.c b/drivers/vfio/platform/vfio_platform_common.c
index c0cd824be2b7..460760d0becf 100644
--- a/drivers/vfio/platform/vfio_platform_common.c
+++ b/drivers/vfio/platform/vfio_platform_common.c
@@ -273,7 +273,7 @@ static int vfio_platform_open(void *device_data)
ret = pm_runtime_get_sync(vdev->device);
if (ret < 0)
- goto err_pm;
+ goto err_rst;
ret = vfio_platform_call_reset(vdev, &extra_dbg);
if (ret && vdev->reset_required) {
@@ -290,7 +290,6 @@ static int vfio_platform_open(void *device_data)
err_rst:
pm_runtime_put(vdev->device);
-err_pm:
vfio_platform_irq_cleanup(vdev);
err_irq:
vfio_platform_regions_cleanup(vdev);
diff --git a/fs/btrfs/dev-replace.c b/fs/btrfs/dev-replace.c
index 36c0490156ac..4d1d2657d70c 100644
--- a/fs/btrfs/dev-replace.c
+++ b/fs/btrfs/dev-replace.c
@@ -54,6 +54,17 @@ int btrfs_init_dev_replace(struct btrfs_fs_info *fs_info)
ret = btrfs_search_slot(NULL, dev_root, &key, path, 0, 0);
if (ret) {
no_valid_dev_replace_entry_found:
+ /*
+ * We don't have a replace item or it's corrupted. If there is
+ * a replace target, fail the mount.
+ */
+ if (btrfs_find_device(fs_info->fs_devices,
+ BTRFS_DEV_REPLACE_DEVID, NULL, NULL, false)) {
+ btrfs_err(fs_info,
+ "found replace target device without a valid replace item");
+ ret = -EUCLEAN;
+ goto out;
+ }
ret = 0;
dev_replace->replace_state =
BTRFS_DEV_REPLACE_ITEM_STATE_NEVER_STARTED;
@@ -107,8 +118,19 @@ int btrfs_init_dev_replace(struct btrfs_fs_info *fs_info)
case BTRFS_IOCTL_DEV_REPLACE_STATE_NEVER_STARTED:
case BTRFS_IOCTL_DEV_REPLACE_STATE_FINISHED:
case BTRFS_IOCTL_DEV_REPLACE_STATE_CANCELED:
- dev_replace->srcdev = NULL;
- dev_replace->tgtdev = NULL;
+ /*
+ * We don't have an active replace item but if there is a
+ * replace target, fail the mount.
+ */
+ if (btrfs_find_device(fs_info->fs_devices,
+ BTRFS_DEV_REPLACE_DEVID, NULL, NULL, false)) {
+ btrfs_err(fs_info,
+ "replace devid present without an active replace item");
+ ret = -EUCLEAN;
+ } else {
+ dev_replace->srcdev = NULL;
+ dev_replace->tgtdev = NULL;
+ }
break;
case BTRFS_IOCTL_DEV_REPLACE_STATE_STARTED:
case BTRFS_IOCTL_DEV_REPLACE_STATE_SUSPENDED:
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 301111922a1a..dabf153843e9 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -3913,6 +3913,10 @@ int btree_write_cache_pages(struct address_space *mapping,
if (!ret) {
free_extent_buffer(eb);
continue;
+ } else if (ret < 0) {
+ done = 1;
+ free_extent_buffer(eb);
+ break;
}
ret = write_one_eb(eb, fs_info, wbc, &epd);
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 01a90fa03c24..f3658d6ea657 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -1239,6 +1239,7 @@ static int cluster_pages_for_defrag(struct inode *inode,
u64 page_start;
u64 page_end;
u64 page_cnt;
+ u64 start = (u64)start_index << PAGE_SHIFT;
int ret;
int i;
int i_done;
@@ -1255,8 +1256,7 @@ static int cluster_pages_for_defrag(struct inode *inode,
page_cnt = min_t(u64, (u64)num_pages, (u64)file_end - start_index + 1);
ret = btrfs_delalloc_reserve_space(inode, &data_reserved,
- start_index << PAGE_SHIFT,
- page_cnt << PAGE_SHIFT);
+ start, page_cnt << PAGE_SHIFT);
if (ret)
return ret;
i_done = 0;
@@ -1346,8 +1346,7 @@ static int cluster_pages_for_defrag(struct inode *inode,
btrfs_mod_outstanding_extents(BTRFS_I(inode), 1);
spin_unlock(&BTRFS_I(inode)->lock);
btrfs_delalloc_release_space(inode, data_reserved,
- start_index << PAGE_SHIFT,
- (page_cnt - i_done) << PAGE_SHIFT, true);
+ start, (page_cnt - i_done) << PAGE_SHIFT, true);
}
@@ -1374,8 +1373,7 @@ static int cluster_pages_for_defrag(struct inode *inode,
put_page(pages[i]);
}
btrfs_delalloc_release_space(inode, data_reserved,
- start_index << PAGE_SHIFT,
- page_cnt << PAGE_SHIFT, true);
+ start, page_cnt << PAGE_SHIFT, true);
btrfs_delalloc_release_extents(BTRFS_I(inode), page_cnt << PAGE_SHIFT);
extent_changeset_free(data_reserved);
return ret;
@@ -4217,6 +4215,8 @@ static int btrfs_clone(struct inode *src, struct inode *inode,
ret = -EINTR;
goto out;
}
+
+ cond_resched();
}
ret = 0;
diff --git a/fs/btrfs/ref-verify.c b/fs/btrfs/ref-verify.c
index 5dec52bd2897..b26739d0e991 100644
--- a/fs/btrfs/ref-verify.c
+++ b/fs/btrfs/ref-verify.c
@@ -854,6 +854,7 @@ int btrfs_ref_tree_mod(struct btrfs_root *root, u64 bytenr, u64 num_bytes,
"dropping a ref for a root that doesn't have a ref on the block");
dump_block_entry(fs_info, be);
dump_ref_action(fs_info, ra);
+ kfree(ref);
kfree(ra);
goto out_unlock;
}
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 05daa2b816c3..7e000d061813 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -974,22 +974,13 @@ void btrfs_free_extra_devids(struct btrfs_fs_devices *fs_devices, int step)
continue;
}
- if (device->devid == BTRFS_DEV_REPLACE_DEVID) {
- /*
- * In the first step, keep the device which has
- * the correct fsid and the devid that is used
- * for the dev_replace procedure.
- * In the second step, the dev_replace state is
- * read from the device tree and it is known
- * whether the procedure is really active or
- * not, which means whether this device is
- * used or whether it should be removed.
- */
- if (step == 0 || test_bit(BTRFS_DEV_STATE_REPLACE_TGT,
- &device->dev_state)) {
- continue;
- }
- }
+ /*
+ * We have already validated the presence of BTRFS_DEV_REPLACE_DEVID,
+ * in btrfs_init_dev_replace() so just continue.
+ */
+ if (device->devid == BTRFS_DEV_REPLACE_DEVID)
+ continue;
+
if (device->bdev) {
blkdev_put(device->bdev, device->mode);
device->bdev = NULL;
@@ -998,9 +989,6 @@ void btrfs_free_extra_devids(struct btrfs_fs_devices *fs_devices, int step)
if (test_bit(BTRFS_DEV_STATE_WRITEABLE, &device->dev_state)) {
list_del_init(&device->dev_alloc_list);
clear_bit(BTRFS_DEV_STATE_WRITEABLE, &device->dev_state);
- if (!test_bit(BTRFS_DEV_STATE_REPLACE_TGT,
- &device->dev_state))
- fs_devices->rw_devices--;
}
list_del_init(&device->dev_list);
fs_devices->num_devices--;
@@ -2459,9 +2447,6 @@ int btrfs_init_new_device(struct btrfs_fs_info *fs_info, const char *device_path
btrfs_set_super_num_devices(fs_info->super_copy,
orig_super_num_devices + 1);
- /* add sysfs device entry */
- btrfs_sysfs_add_device_link(fs_devices, device);
-
/*
* we've got more storage, clear any full flags on the space
* infos
@@ -2469,6 +2454,10 @@ int btrfs_init_new_device(struct btrfs_fs_info *fs_info, const char *device_path
btrfs_clear_space_info_full(fs_info);
mutex_unlock(&fs_info->chunk_mutex);
+
+ /* Add sysfs device entry */
+ btrfs_sysfs_add_device_link(fs_devices, device);
+
mutex_unlock(&fs_devices->device_list_mutex);
if (seeding_dev) {
diff --git a/fs/cifs/cifs_unicode.c b/fs/cifs/cifs_unicode.c
index a2b2355e7f01..9986817532b1 100644
--- a/fs/cifs/cifs_unicode.c
+++ b/fs/cifs/cifs_unicode.c
@@ -501,7 +501,13 @@ cifsConvertToUTF16(__le16 *target, const char *source, int srclen,
else if (map_chars == SFM_MAP_UNI_RSVD) {
bool end_of_string;
- if (i == srclen - 1)
+ /**
+ * Remap spaces and periods found at the end of every
+ * component of the path. The special cases of '.' and
+ * '..' do not need to be dealt with explicitly because
+ * they are addressed in namei.c:link_path_walk().
+ **/
+ if ((i == srclen - 1) || (source[i+1] == '\\'))
end_of_string = true;
else
end_of_string = false;
diff --git a/fs/ext4/inline.c b/fs/ext4/inline.c
index 4572cb057951..c95246187659 100644
--- a/fs/ext4/inline.c
+++ b/fs/ext4/inline.c
@@ -1921,6 +1921,7 @@ int ext4_inline_data_truncate(struct inode *inode, int *has_inline)
ext4_write_lock_xattr(inode, &no_expand);
if (!ext4_has_inline_data(inode)) {
+ ext4_write_unlock_xattr(inode, &no_expand);
*has_inline = 0;
ext4_journal_stop(handle);
return 0;
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 6338ca95d8b3..ee96f504ed78 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -1748,8 +1748,8 @@ static const struct mount_opts {
{Opt_noquota, (EXT4_MOUNT_QUOTA | EXT4_MOUNT_USRQUOTA |
EXT4_MOUNT_GRPQUOTA | EXT4_MOUNT_PRJQUOTA),
MOPT_CLEAR | MOPT_Q},
- {Opt_usrjquota, 0, MOPT_Q},
- {Opt_grpjquota, 0, MOPT_Q},
+ {Opt_usrjquota, 0, MOPT_Q | MOPT_STRING},
+ {Opt_grpjquota, 0, MOPT_Q | MOPT_STRING},
{Opt_offusrjquota, 0, MOPT_Q},
{Opt_offgrpjquota, 0, MOPT_Q},
{Opt_jqfmt_vfsold, QFMT_VFS_OLD, MOPT_QFMT},
diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c
index c94c4ac1ae78..de9b561b1c38 100644
--- a/fs/gfs2/rgrp.c
+++ b/fs/gfs2/rgrp.c
@@ -739,9 +739,9 @@ void gfs2_clear_rgrpd(struct gfs2_sbd *sdp)
}
gfs2_free_clones(rgd);
+ return_all_reservations(rgd);
kfree(rgd->rd_bits);
rgd->rd_bits = NULL;
- return_all_reservations(rgd);
kmem_cache_free(gfs2_rgrpd_cachep, rgd);
}
}
@@ -1387,6 +1387,9 @@ int gfs2_fitrim(struct file *filp, void __user *argp)
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
+ if (!test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags))
+ return -EROFS;
+
if (!blk_queue_discard(q))
return -EOPNOTSUPP;
diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c
index a971862b186e..22cd68bd8c9b 100644
--- a/fs/gfs2/super.c
+++ b/fs/gfs2/super.c
@@ -934,6 +934,7 @@ static void gfs2_put_super(struct super_block *sb)
gfs2_jindex_free(sdp);
/* Take apart glock structures and buffer lists */
gfs2_gl_hash_clear(sdp);
+ truncate_inode_pages_final(&sdp->sd_aspace);
gfs2_delete_debugfs_file(sdp);
/* Unmount the locking protocol */
gfs2_lm_unmount(sdp);
diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c
index 2658d91c1f7b..09bc2cf5f61c 100644
--- a/fs/ocfs2/super.c
+++ b/fs/ocfs2/super.c
@@ -1747,6 +1747,7 @@ static void ocfs2_inode_init_once(void *data)
oi->ip_blkno = 0ULL;
oi->ip_clusters = 0;
+ oi->ip_next_orphan = NULL;
ocfs2_resv_init_once(&oi->ip_la_data_resv);
diff --git a/fs/xfs/libxfs/xfs_alloc.c b/fs/xfs/libxfs/xfs_alloc.c
index 1eb7933dac83..b3a9043b0c9e 100644
--- a/fs/xfs/libxfs/xfs_alloc.c
+++ b/fs/xfs/libxfs/xfs_alloc.c
@@ -2213,6 +2213,7 @@ xfs_defer_agfl_block(
new->xefi_startblock = XFS_AGB_TO_FSB(mp, agno, agbno);
new->xefi_blockcount = 1;
new->xefi_oinfo = *oinfo;
+ new->xefi_skip_discard = false;
trace_xfs_agfl_free_defer(mp, agno, 0, agbno, 1);
diff --git a/fs/xfs/libxfs/xfs_bmap.h b/fs/xfs/libxfs/xfs_bmap.h
index 488dc8860fd7..50242ba3cdb7 100644
--- a/fs/xfs/libxfs/xfs_bmap.h
+++ b/fs/xfs/libxfs/xfs_bmap.h
@@ -52,9 +52,9 @@ struct xfs_extent_free_item
{
xfs_fsblock_t xefi_startblock;/* starting fs block number */
xfs_extlen_t xefi_blockcount;/* number of blocks in extent */
+ bool xefi_skip_discard;
struct list_head xefi_list;
struct xfs_owner_info xefi_oinfo; /* extent owner */
- bool xefi_skip_discard;
};
#define XFS_BMAP_MAX_NMAP 4
diff --git a/fs/xfs/libxfs/xfs_rmap.c b/fs/xfs/libxfs/xfs_rmap.c
index 245af452840e..ab3e72e702f0 100644
--- a/fs/xfs/libxfs/xfs_rmap.c
+++ b/fs/xfs/libxfs/xfs_rmap.c
@@ -1387,7 +1387,7 @@ xfs_rmap_convert_shared(
* record for our insertion point. This will also give us the record for
* start block contiguity tests.
*/
- error = xfs_rmap_lookup_le_range(cur, bno, owner, offset, flags,
+ error = xfs_rmap_lookup_le_range(cur, bno, owner, offset, oldext,
&PREV, &i);
if (error)
goto done;
diff --git a/fs/xfs/libxfs/xfs_rmap_btree.c b/fs/xfs/libxfs/xfs_rmap_btree.c
index f79cf040d745..77528f413286 100644
--- a/fs/xfs/libxfs/xfs_rmap_btree.c
+++ b/fs/xfs/libxfs/xfs_rmap_btree.c
@@ -247,8 +247,8 @@ xfs_rmapbt_key_diff(
else if (y > x)
return -1;
- x = XFS_RMAP_OFF(be64_to_cpu(kp->rm_offset));
- y = rec->rm_offset;
+ x = be64_to_cpu(kp->rm_offset);
+ y = xfs_rmap_irec_offset_pack(rec);
if (x > y)
return 1;
else if (y > x)
@@ -279,8 +279,8 @@ xfs_rmapbt_diff_two_keys(
else if (y > x)
return -1;
- x = XFS_RMAP_OFF(be64_to_cpu(kp1->rm_offset));
- y = XFS_RMAP_OFF(be64_to_cpu(kp2->rm_offset));
+ x = be64_to_cpu(kp1->rm_offset);
+ y = be64_to_cpu(kp2->rm_offset);
if (x > y)
return 1;
else if (y > x)
@@ -393,8 +393,8 @@ xfs_rmapbt_keys_inorder(
return 1;
else if (a > b)
return 0;
- a = XFS_RMAP_OFF(be64_to_cpu(k1->rmap.rm_offset));
- b = XFS_RMAP_OFF(be64_to_cpu(k2->rmap.rm_offset));
+ a = be64_to_cpu(k1->rmap.rm_offset);
+ b = be64_to_cpu(k2->rmap.rm_offset);
if (a <= b)
return 1;
return 0;
@@ -423,8 +423,8 @@ xfs_rmapbt_recs_inorder(
return 1;
else if (a > b)
return 0;
- a = XFS_RMAP_OFF(be64_to_cpu(r1->rmap.rm_offset));
- b = XFS_RMAP_OFF(be64_to_cpu(r2->rmap.rm_offset));
+ a = be64_to_cpu(r1->rmap.rm_offset);
+ b = be64_to_cpu(r2->rmap.rm_offset);
if (a <= b)
return 1;
return 0;
diff --git a/fs/xfs/scrub/bmap.c b/fs/xfs/scrub/bmap.c
index f84a58e523bc..b05d65fd360b 100644
--- a/fs/xfs/scrub/bmap.c
+++ b/fs/xfs/scrub/bmap.c
@@ -120,6 +120,8 @@ xchk_bmap_get_rmap(
if (info->whichfork == XFS_ATTR_FORK)
rflags |= XFS_RMAP_ATTR_FORK;
+ if (irec->br_state == XFS_EXT_UNWRITTEN)
+ rflags |= XFS_RMAP_UNWRITTEN;
/*
* CoW staging extents are owned (on disk) by the refcountbt, so
diff --git a/fs/xfs/scrub/inode.c b/fs/xfs/scrub/inode.c
index e386c9b0b4ab..8d45d60832db 100644
--- a/fs/xfs/scrub/inode.c
+++ b/fs/xfs/scrub/inode.c
@@ -131,8 +131,7 @@ xchk_inode_flags(
goto bad;
/* rt flags require rt device */
- if ((flags & (XFS_DIFLAG_REALTIME | XFS_DIFLAG_RTINHERIT)) &&
- !mp->m_rtdev_targp)
+ if ((flags & XFS_DIFLAG_REALTIME) && !mp->m_rtdev_targp)
goto bad;
/* new rt bitmap flag only valid for rbmino */
diff --git a/fs/xfs/scrub/refcount.c b/fs/xfs/scrub/refcount.c
index e8c82b026083..76e4f16a9fab 100644
--- a/fs/xfs/scrub/refcount.c
+++ b/fs/xfs/scrub/refcount.c
@@ -180,7 +180,6 @@ xchk_refcountbt_process_rmap_fragments(
*/
INIT_LIST_HEAD(&worklist);
rbno = NULLAGBLOCK;
- nr = 1;
/* Make sure the fragments actually /are/ in agbno order. */
bno = 0;
@@ -194,15 +193,14 @@ xchk_refcountbt_process_rmap_fragments(
* Find all the rmaps that start at or before the refc extent,
* and put them on the worklist.
*/
+ nr = 0;
list_for_each_entry_safe(frag, n, &refchk->fragments, list) {
- if (frag->rm.rm_startblock > refchk->bno)
- goto done;
+ if (frag->rm.rm_startblock > refchk->bno || nr > target_nr)
+ break;
bno = frag->rm.rm_startblock + frag->rm.rm_blockcount;
if (bno < rbno)
rbno = bno;
list_move_tail(&frag->list, &worklist);
- if (nr == target_nr)
- break;
nr++;
}
diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c
index e427ad097e2e..948ac1290121 100644
--- a/fs/xfs/xfs_iops.c
+++ b/fs/xfs/xfs_iops.c
@@ -895,6 +895,16 @@ xfs_setattr_size(
error = iomap_zero_range(inode, oldsize, newsize - oldsize,
&did_zeroing, &xfs_iomap_ops);
} else {
+ /*
+ * iomap won't detect a dirty page over an unwritten block (or a
+ * cow block over a hole) and subsequently skips zeroing the
+ * newly post-EOF portion of the page. Flush the new EOF to
+ * convert the block before the pagecache truncate.
+ */
+ error = filemap_write_and_wait_range(inode->i_mapping, newsize,
+ newsize);
+ if (error)
+ return error;
error = iomap_truncate_page(inode, newsize, &did_zeroing,
&xfs_iomap_ops);
}
diff --git a/fs/xfs/xfs_pnfs.c b/fs/xfs/xfs_pnfs.c
index f44c3599527d..1c9bced3e860 100644
--- a/fs/xfs/xfs_pnfs.c
+++ b/fs/xfs/xfs_pnfs.c
@@ -141,7 +141,7 @@ xfs_fs_map_blocks(
goto out_unlock;
error = invalidate_inode_pages2(inode->i_mapping);
if (WARN_ON_ONCE(error))
- return error;
+ goto out_unlock;
end_fsb = XFS_B_TO_FSB(mp, (xfs_ufsize_t)offset + length);
offset_fsb = XFS_B_TO_FSBT(mp, offset);
diff --git a/include/linux/can/skb.h b/include/linux/can/skb.h
index b3379a97245c..a34694e675c9 100644
--- a/include/linux/can/skb.h
+++ b/include/linux/can/skb.h
@@ -61,21 +61,17 @@ static inline void can_skb_set_owner(struct sk_buff *skb, struct sock *sk)
*/
static inline struct sk_buff *can_create_echo_skb(struct sk_buff *skb)
{
- if (skb_shared(skb)) {
- struct sk_buff *nskb = skb_clone(skb, GFP_ATOMIC);
+ struct sk_buff *nskb;
- if (likely(nskb)) {
- can_skb_set_owner(nskb, skb->sk);
- consume_skb(skb);
- return nskb;
- } else {
- kfree_skb(skb);
- return NULL;
- }
+ nskb = skb_clone(skb, GFP_ATOMIC);
+ if (unlikely(!nskb)) {
+ kfree_skb(skb);
+ return NULL;
}
- /* we can assume to have an unshared skb with proper owner */
- return skb;
+ can_skb_set_owner(nskb, skb->sk);
+ consume_skb(skb);
+ return nskb;
}
#endif /* !_CAN_SKB_H */
diff --git a/include/linux/netfilter_ipv4.h b/include/linux/netfilter_ipv4.h
index 95ab5cc64422..45ff1330b339 100644
--- a/include/linux/netfilter_ipv4.h
+++ b/include/linux/netfilter_ipv4.h
@@ -16,7 +16,7 @@ struct ip_rt_info {
u_int32_t mark;
};
-int ip_route_me_harder(struct net *net, struct sk_buff *skb, unsigned addr_type);
+int ip_route_me_harder(struct net *net, struct sock *sk, struct sk_buff *skb, unsigned addr_type);
struct nf_queue_entry;
diff --git a/include/linux/netfilter_ipv6.h b/include/linux/netfilter_ipv6.h
index c0dc4dd78887..47a2de582f57 100644
--- a/include/linux/netfilter_ipv6.h
+++ b/include/linux/netfilter_ipv6.h
@@ -36,7 +36,7 @@ struct nf_ipv6_ops {
};
#ifdef CONFIG_NETFILTER
-int ip6_route_me_harder(struct net *net, struct sk_buff *skb);
+int ip6_route_me_harder(struct net *net, struct sock *sk, struct sk_buff *skb);
__sum16 nf_ip6_checksum(struct sk_buff *skb, unsigned int hook,
unsigned int dataoff, u_int8_t protocol);
diff --git a/include/linux/prandom.h b/include/linux/prandom.h
index aa16e6468f91..cc1e71334e53 100644
--- a/include/linux/prandom.h
+++ b/include/linux/prandom.h
@@ -16,12 +16,44 @@ void prandom_bytes(void *buf, size_t nbytes);
void prandom_seed(u32 seed);
void prandom_reseed_late(void);
+#if BITS_PER_LONG == 64
+/*
+ * The core SipHash round function. Each line can be executed in
+ * parallel given enough CPU resources.
+ */
+#define PRND_SIPROUND(v0, v1, v2, v3) ( \
+ v0 += v1, v1 = rol64(v1, 13), v2 += v3, v3 = rol64(v3, 16), \
+ v1 ^= v0, v0 = rol64(v0, 32), v3 ^= v2, \
+ v0 += v3, v3 = rol64(v3, 21), v2 += v1, v1 = rol64(v1, 17), \
+ v3 ^= v0, v1 ^= v2, v2 = rol64(v2, 32) \
+)
+
+#define PRND_K0 (0x736f6d6570736575 ^ 0x6c7967656e657261)
+#define PRND_K1 (0x646f72616e646f6d ^ 0x7465646279746573)
+
+#elif BITS_PER_LONG == 32
+/*
+ * On 32-bit machines, we use HSipHash, a reduced-width version of SipHash.
+ * This is weaker, but 32-bit machines are not used for high-traffic
+ * applications, so there is less output for an attacker to analyze.
+ */
+#define PRND_SIPROUND(v0, v1, v2, v3) ( \
+ v0 += v1, v1 = rol32(v1, 5), v2 += v3, v3 = rol32(v3, 8), \
+ v1 ^= v0, v0 = rol32(v0, 16), v3 ^= v2, \
+ v0 += v3, v3 = rol32(v3, 7), v2 += v1, v1 = rol32(v1, 13), \
+ v3 ^= v0, v1 ^= v2, v2 = rol32(v2, 16) \
+)
+#define PRND_K0 0x6c796765
+#define PRND_K1 0x74656462
+
+#else
+#error Unsupported BITS_PER_LONG
+#endif
+
struct rnd_state {
__u32 s1, s2, s3, s4;
};
-DECLARE_PER_CPU(struct rnd_state, net_rand_state);
-
u32 prandom_u32_state(struct rnd_state *state);
void prandom_bytes_state(struct rnd_state *state, void *buf, size_t nbytes);
void prandom_seed_full_state(struct rnd_state __percpu *pcpu_state);
diff --git a/include/linux/time64.h b/include/linux/time64.h
index 4a45aea0f96e..8dbdf6cae3e8 100644
--- a/include/linux/time64.h
+++ b/include/linux/time64.h
@@ -138,6 +138,10 @@ static inline bool timespec64_valid_settod(const struct timespec64 *ts)
*/
static inline s64 timespec64_to_ns(const struct timespec64 *ts)
{
+ /* Prevent multiplication overflow */
+ if ((unsigned long long)ts->tv_sec >= KTIME_SEC_MAX)
+ return KTIME_MAX;
+
return ((s64) ts->tv_sec * NSEC_PER_SEC) + ts->tv_nsec;
}
diff --git a/kernel/dma/swiotlb.c b/kernel/dma/swiotlb.c
index 2a8c41f12d45..6f7d4e977c5c 100644
--- a/kernel/dma/swiotlb.c
+++ b/kernel/dma/swiotlb.c
@@ -239,6 +239,7 @@ int __init swiotlb_init_with_tbl(char *tlb, unsigned long nslabs, int verbose)
io_tlb_orig_addr[i] = INVALID_PHYS_ADDR;
}
io_tlb_index = 0;
+ no_iotlb_memory = false;
if (verbose)
swiotlb_print_info();
@@ -270,9 +271,11 @@ swiotlb_init(int verbose)
if (vstart && !swiotlb_init_with_tbl(vstart, io_tlb_nslabs, verbose))
return;
- if (io_tlb_start)
+ if (io_tlb_start) {
memblock_free_early(io_tlb_start,
PAGE_ALIGN(io_tlb_nslabs << IO_TLB_SHIFT));
+ io_tlb_start = 0;
+ }
pr_warn("Cannot allocate buffer");
no_iotlb_memory = true;
}
@@ -376,6 +379,7 @@ swiotlb_late_init_with_tbl(char *tlb, unsigned long nslabs)
io_tlb_orig_addr[i] = INVALID_PHYS_ADDR;
}
io_tlb_index = 0;
+ no_iotlb_memory = false;
swiotlb_print_info();
diff --git a/kernel/events/core.c b/kernel/events/core.c
index 8b94eb6437c1..b8b74a4a524c 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -5475,11 +5475,11 @@ static void perf_pmu_output_stop(struct perf_event *event);
static void perf_mmap_close(struct vm_area_struct *vma)
{
struct perf_event *event = vma->vm_file->private_data;
-
struct ring_buffer *rb = ring_buffer_get(event);
struct user_struct *mmap_user = rb->mmap_user;
int mmap_locked = rb->mmap_locked;
unsigned long size = perf_data_size(rb);
+ bool detach_rest = false;
if (event->pmu->event_unmapped)
event->pmu->event_unmapped(event, vma->vm_mm);
@@ -5510,7 +5510,8 @@ static void perf_mmap_close(struct vm_area_struct *vma)
mutex_unlock(&event->mmap_mutex);
}
- atomic_dec(&rb->mmap_count);
+ if (atomic_dec_and_test(&rb->mmap_count))
+ detach_rest = true;
if (!atomic_dec_and_mutex_lock(&event->mmap_count, &event->mmap_mutex))
goto out_put;
@@ -5519,7 +5520,7 @@ static void perf_mmap_close(struct vm_area_struct *vma)
mutex_unlock(&event->mmap_mutex);
/* If there's still other mmap()s of this buffer, we're done. */
- if (atomic_read(&rb->mmap_count))
+ if (!detach_rest)
goto out_put;
/*
diff --git a/kernel/events/internal.h b/kernel/events/internal.h
index 6dc725a7e7bc..8fc0ddc38cb6 100644
--- a/kernel/events/internal.h
+++ b/kernel/events/internal.h
@@ -209,7 +209,7 @@ static inline int get_recursion_context(int *recursion)
rctx = 3;
else if (in_irq())
rctx = 2;
- else if (in_softirq())
+ else if (in_serving_softirq())
rctx = 1;
else
rctx = 0;
diff --git a/kernel/exit.c b/kernel/exit.c
index eeaafd4064c9..65133ebddfad 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -517,7 +517,10 @@ static void exit_mm(void)
up_read(&mm->mmap_sem);
self.task = current;
- self.next = xchg(&core_state->dumper.next, &self);
+ if (self.task->flags & PF_SIGNALED)
+ self.next = xchg(&core_state->dumper.next, &self);
+ else
+ self.task = NULL;
/*
* Implies mb(), the result of xchg() must be visible
* to core_state->dumper.
diff --git a/kernel/futex.c b/kernel/futex.c
index 52f641c00a65..334dc4cae780 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -856,8 +856,9 @@ static void put_pi_state(struct futex_pi_state *pi_state)
*/
if (pi_state->owner) {
struct task_struct *owner;
+ unsigned long flags;
- raw_spin_lock_irq(&pi_state->pi_mutex.wait_lock);
+ raw_spin_lock_irqsave(&pi_state->pi_mutex.wait_lock, flags);
owner = pi_state->owner;
if (owner) {
raw_spin_lock(&owner->pi_lock);
@@ -865,7 +866,7 @@ static void put_pi_state(struct futex_pi_state *pi_state)
raw_spin_unlock(&owner->pi_lock);
}
rt_mutex_proxy_unlock(&pi_state->pi_mutex, owner);
- raw_spin_unlock_irq(&pi_state->pi_mutex.wait_lock);
+ raw_spin_unlock_irqrestore(&pi_state->pi_mutex.wait_lock, flags);
}
if (current->pi_state_cache) {
diff --git a/kernel/irq/Kconfig b/kernel/irq/Kconfig
index 5f3e2baefca9..d532bf0c5a67 100644
--- a/kernel/irq/Kconfig
+++ b/kernel/irq/Kconfig
@@ -80,6 +80,7 @@ config IRQ_FASTEOI_HIERARCHY_HANDLERS
# Generic IRQ IPI support
config GENERIC_IRQ_IPI
bool
+ select IRQ_DOMAIN_HIERARCHY
# Generic MSI interrupt support
config GENERIC_MSI_IRQ
diff --git a/kernel/reboot.c b/kernel/reboot.c
index 8fb44dec9ad7..45bea54f9aee 100644
--- a/kernel/reboot.c
+++ b/kernel/reboot.c
@@ -539,22 +539,22 @@ static int __init reboot_setup(char *str)
break;
case 's':
- {
- int rc;
-
- if (isdigit(*(str+1))) {
- rc = kstrtoint(str+1, 0, &reboot_cpu);
- if (rc)
- return rc;
- } else if (str[1] == 'm' && str[2] == 'p' &&
- isdigit(*(str+3))) {
- rc = kstrtoint(str+3, 0, &reboot_cpu);
- if (rc)
- return rc;
- } else
+ if (isdigit(*(str+1)))
+ reboot_cpu = simple_strtoul(str+1, NULL, 0);
+ else if (str[1] == 'm' && str[2] == 'p' &&
+ isdigit(*(str+3)))
+ reboot_cpu = simple_strtoul(str+3, NULL, 0);
+ else
reboot_mode = REBOOT_SOFT;
+ if (reboot_cpu >= num_possible_cpus()) {
+ pr_err("Ignoring the CPU number in reboot= option. "
+ "CPU %d exceeds possible cpu number %d\n",
+ reboot_cpu, num_possible_cpus());
+ reboot_cpu = 0;
+ break;
+ }
break;
- }
+
case 'g':
reboot_mode = REBOOT_GPIO;
break;
diff --git a/kernel/time/itimer.c b/kernel/time/itimer.c
index 9a65713c8309..2e2b335ef101 100644
--- a/kernel/time/itimer.c
+++ b/kernel/time/itimer.c
@@ -154,10 +154,6 @@ static void set_cpu_itimer(struct task_struct *tsk, unsigned int clock_id,
u64 oval, nval, ointerval, ninterval;
struct cpu_itimer *it = &tsk->signal->it[clock_id];
- /*
- * Use the to_ktime conversion because that clamps the maximum
- * value to KTIME_MAX and avoid multiplication overflows.
- */
nval = ktime_to_ns(timeval_to_ktime(value->it_value));
ninterval = ktime_to_ns(timeval_to_ktime(value->it_interval));
diff --git a/kernel/time/tick-common.c b/kernel/time/tick-common.c
index a02e0f6b287c..0a3cc37e4b83 100644
--- a/kernel/time/tick-common.c
+++ b/kernel/time/tick-common.c
@@ -15,6 +15,7 @@
#include <linux/err.h>
#include <linux/hrtimer.h>
#include <linux/interrupt.h>
+#include <linux/nmi.h>
#include <linux/percpu.h>
#include <linux/profile.h>
#include <linux/sched.h>
@@ -520,6 +521,7 @@ void tick_unfreeze(void)
trace_suspend_resume(TPS("timekeeping_freeze"),
smp_processor_id(), false);
} else {
+ touch_softlockup_watchdog();
tick_resume_local();
}
diff --git a/kernel/time/timer.c b/kernel/time/timer.c
index 61e41ea3a96e..a6e88d9bb931 100644
--- a/kernel/time/timer.c
+++ b/kernel/time/timer.c
@@ -1655,13 +1655,6 @@ void update_process_times(int user_tick)
scheduler_tick();
if (IS_ENABLED(CONFIG_POSIX_TIMERS))
run_posix_cpu_timers(p);
-
- /* The current CPU might make use of net randoms without receiving IRQs
- * to renew them often enough. Let's update the net_rand_state from a
- * non-constant value that's not affine to the number of calls to make
- * sure it's updated when there's some activity (we don't care in idle).
- */
- this_cpu_add(net_rand_state.s1, rol32(jiffies, 24) + user_tick);
}
/**
diff --git a/lib/random32.c b/lib/random32.c
index b6f3325e38e4..9085b1172015 100644
--- a/lib/random32.c
+++ b/lib/random32.c
@@ -40,16 +40,6 @@
#include <linux/sched.h>
#include <asm/unaligned.h>
-#ifdef CONFIG_RANDOM32_SELFTEST
-static void __init prandom_state_selftest(void);
-#else
-static inline void prandom_state_selftest(void)
-{
-}
-#endif
-
-DEFINE_PER_CPU(struct rnd_state, net_rand_state) __latent_entropy;
-
/**
* prandom_u32_state - seeded pseudo-random number generator.
* @state: pointer to state structure holding seeded state.
@@ -69,25 +59,6 @@ u32 prandom_u32_state(struct rnd_state *state)
}
EXPORT_SYMBOL(prandom_u32_state);
-/**
- * prandom_u32 - pseudo random number generator
- *
- * A 32 bit pseudo-random number is generated using a fast
- * algorithm suitable for simulation. This algorithm is NOT
- * considered safe for cryptographic use.
- */
-u32 prandom_u32(void)
-{
- struct rnd_state *state = &get_cpu_var(net_rand_state);
- u32 res;
-
- res = prandom_u32_state(state);
- put_cpu_var(net_rand_state);
-
- return res;
-}
-EXPORT_SYMBOL(prandom_u32);
-
/**
* prandom_bytes_state - get the requested number of pseudo-random bytes
*
@@ -119,20 +90,6 @@ void prandom_bytes_state(struct rnd_state *state, void *buf, size_t bytes)
}
EXPORT_SYMBOL(prandom_bytes_state);
-/**
- * prandom_bytes - get the requested number of pseudo-random bytes
- * @buf: where to copy the pseudo-random bytes to
- * @bytes: the requested number of bytes
- */
-void prandom_bytes(void *buf, size_t bytes)
-{
- struct rnd_state *state = &get_cpu_var(net_rand_state);
-
- prandom_bytes_state(state, buf, bytes);
- put_cpu_var(net_rand_state);
-}
-EXPORT_SYMBOL(prandom_bytes);
-
static void prandom_warmup(struct rnd_state *state)
{
/* Calling RNG ten times to satisfy recurrence condition */
@@ -148,96 +105,6 @@ static void prandom_warmup(struct rnd_state *state)
prandom_u32_state(state);
}
-static u32 __extract_hwseed(void)
-{
- unsigned int val = 0;
-
- (void)(arch_get_random_seed_int(&val) ||
- arch_get_random_int(&val));
-
- return val;
-}
-
-static void prandom_seed_early(struct rnd_state *state, u32 seed,
- bool mix_with_hwseed)
-{
-#define LCG(x) ((x) * 69069U) /* super-duper LCG */
-#define HWSEED() (mix_with_hwseed ? __extract_hwseed() : 0)
- state->s1 = __seed(HWSEED() ^ LCG(seed), 2U);
- state->s2 = __seed(HWSEED() ^ LCG(state->s1), 8U);
- state->s3 = __seed(HWSEED() ^ LCG(state->s2), 16U);
- state->s4 = __seed(HWSEED() ^ LCG(state->s3), 128U);
-}
-
-/**
- * prandom_seed - add entropy to pseudo random number generator
- * @seed: seed value
- *
- * Add some additional seeding to the prandom pool.
- */
-void prandom_seed(u32 entropy)
-{
- int i;
- /*
- * No locking on the CPUs, but then somewhat random results are, well,
- * expected.
- */
- for_each_possible_cpu(i) {
- struct rnd_state *state = &per_cpu(net_rand_state, i);
-
- state->s1 = __seed(state->s1 ^ entropy, 2U);
- prandom_warmup(state);
- }
-}
-EXPORT_SYMBOL(prandom_seed);
-
-/*
- * Generate some initially weak seeding values to allow
- * to start the prandom_u32() engine.
- */
-static int __init prandom_init(void)
-{
- int i;
-
- prandom_state_selftest();
-
- for_each_possible_cpu(i) {
- struct rnd_state *state = &per_cpu(net_rand_state, i);
- u32 weak_seed = (i + jiffies) ^ random_get_entropy();
-
- prandom_seed_early(state, weak_seed, true);
- prandom_warmup(state);
- }
-
- return 0;
-}
-core_initcall(prandom_init);
-
-static void __prandom_timer(struct timer_list *unused);
-
-static DEFINE_TIMER(seed_timer, __prandom_timer);
-
-static void __prandom_timer(struct timer_list *unused)
-{
- u32 entropy;
- unsigned long expires;
-
- get_random_bytes(&entropy, sizeof(entropy));
- prandom_seed(entropy);
-
- /* reseed every ~60 seconds, in [40 .. 80) interval with slack */
- expires = 40 + prandom_u32_max(40);
- seed_timer.expires = jiffies + msecs_to_jiffies(expires * MSEC_PER_SEC);
-
- add_timer(&seed_timer);
-}
-
-static void __init __prandom_start_seed_timer(void)
-{
- seed_timer.expires = jiffies + msecs_to_jiffies(40 * MSEC_PER_SEC);
- add_timer(&seed_timer);
-}
-
void prandom_seed_full_state(struct rnd_state __percpu *pcpu_state)
{
int i;
@@ -257,51 +124,6 @@ void prandom_seed_full_state(struct rnd_state __percpu *pcpu_state)
}
EXPORT_SYMBOL(prandom_seed_full_state);
-/*
- * Generate better values after random number generator
- * is fully initialized.
- */
-static void __prandom_reseed(bool late)
-{
- unsigned long flags;
- static bool latch = false;
- static DEFINE_SPINLOCK(lock);
-
- /* Asking for random bytes might result in bytes getting
- * moved into the nonblocking pool and thus marking it
- * as initialized. In this case we would double back into
- * this function and attempt to do a late reseed.
- * Ignore the pointless attempt to reseed again if we're
- * already waiting for bytes when the nonblocking pool
- * got initialized.
- */
-
- /* only allow initial seeding (late == false) once */
- if (!spin_trylock_irqsave(&lock, flags))
- return;
-
- if (latch && !late)
- goto out;
-
- latch = true;
- prandom_seed_full_state(&net_rand_state);
-out:
- spin_unlock_irqrestore(&lock, flags);
-}
-
-void prandom_reseed_late(void)
-{
- __prandom_reseed(true);
-}
-
-static int __init prandom_reseed(void)
-{
- __prandom_reseed(false);
- __prandom_start_seed_timer();
- return 0;
-}
-late_initcall(prandom_reseed);
-
#ifdef CONFIG_RANDOM32_SELFTEST
static struct prandom_test1 {
u32 seed;
@@ -421,7 +243,28 @@ static struct prandom_test2 {
{ 407983964U, 921U, 728767059U },
};
-static void __init prandom_state_selftest(void)
+static u32 __extract_hwseed(void)
+{
+ unsigned int val = 0;
+
+ (void)(arch_get_random_seed_int(&val) ||
+ arch_get_random_int(&val));
+
+ return val;
+}
+
+static void prandom_seed_early(struct rnd_state *state, u32 seed,
+ bool mix_with_hwseed)
+{
+#define LCG(x) ((x) * 69069U) /* super-duper LCG */
+#define HWSEED() (mix_with_hwseed ? __extract_hwseed() : 0)
+ state->s1 = __seed(HWSEED() ^ LCG(seed), 2U);
+ state->s2 = __seed(HWSEED() ^ LCG(state->s1), 8U);
+ state->s3 = __seed(HWSEED() ^ LCG(state->s2), 16U);
+ state->s4 = __seed(HWSEED() ^ LCG(state->s3), 128U);
+}
+
+static int __init prandom_state_selftest(void)
{
int i, j, errors = 0, runs = 0;
bool error = false;
@@ -461,5 +304,266 @@ static void __init prandom_state_selftest(void)
pr_warn("prandom: %d/%d self tests failed\n", errors, runs);
else
pr_info("prandom: %d self tests passed\n", runs);
+ return 0;
}
+core_initcall(prandom_state_selftest);
#endif
+
+/*
+ * The prandom_u32() implementation is now completely separate from the
+ * prandom_state() functions, which are retained (for now) for compatibility.
+ *
+ * Because of (ab)use in the networking code for choosing random TCP/UDP port
+ * numbers, which open DoS possibilities if guessable, we want something
+ * stronger than a standard PRNG. But the performance requirements of
+ * the network code do not allow robust crypto for this application.
+ *
+ * So this is a homebrew Junior Spaceman implementation, based on the
+ * lowest-latency trustworthy crypto primitive available, SipHash.
+ * (The authors of SipHash have not been consulted about this abuse of
+ * their work.)
+ *
+ * Standard SipHash-2-4 uses 2n+4 rounds to hash n words of input to
+ * one word of output. This abbreviated version uses 2 rounds per word
+ * of output.
+ */
+
+struct siprand_state {
+ unsigned long v0;
+ unsigned long v1;
+ unsigned long v2;
+ unsigned long v3;
+};
+
+static DEFINE_PER_CPU(struct siprand_state, net_rand_state) __latent_entropy;
+
+/*
+ * This is the core CPRNG function. As "pseudorandom", this is not used
+ * for truly valuable things, just intended to be a PITA to guess.
+ * For maximum speed, we do just two SipHash rounds per word. This is
+ * the same rate as 4 rounds per 64 bits that SipHash normally uses,
+ * so hopefully it's reasonably secure.
+ *
+ * There are two changes from the official SipHash finalization:
+ * - We omit some constants XORed with v2 in the SipHash spec as irrelevant;
+ * they are there only to make the output rounds distinct from the input
+ * rounds, and this application has no input rounds.
+ * - Rather than returning v0^v1^v2^v3, return v1+v3.
+ * If you look at the SipHash round, the last operation on v3 is
+ * "v3 ^= v0", so "v0 ^ v3" just undoes that, a waste of time.
+ * Likewise "v1 ^= v2". (The rotate of v2 makes a difference, but
+ * it still cancels out half of the bits in v2 for no benefit.)
+ * Second, since the last combining operation was xor, continue the
+ * pattern of alternating xor/add for a tiny bit of extra non-linearity.
+ */
+static inline u32 siprand_u32(struct siprand_state *s)
+{
+ unsigned long v0 = s->v0, v1 = s->v1, v2 = s->v2, v3 = s->v3;
+
+ PRND_SIPROUND(v0, v1, v2, v3);
+ PRND_SIPROUND(v0, v1, v2, v3);
+ s->v0 = v0; s->v1 = v1; s->v2 = v2; s->v3 = v3;
+ return v1 + v3;
+}
+
+
+/**
+ * prandom_u32 - pseudo random number generator
+ *
+ * A 32 bit pseudo-random number is generated using a fast
+ * algorithm suitable for simulation. This algorithm is NOT
+ * considered safe for cryptographic use.
+ */
+u32 prandom_u32(void)
+{
+ struct siprand_state *state = get_cpu_ptr(&net_rand_state);
+ u32 res = siprand_u32(state);
+
+ put_cpu_ptr(&net_rand_state);
+ return res;
+}
+EXPORT_SYMBOL(prandom_u32);
+
+/**
+ * prandom_bytes - get the requested number of pseudo-random bytes
+ * @buf: where to copy the pseudo-random bytes to
+ * @bytes: the requested number of bytes
+ */
+void prandom_bytes(void *buf, size_t bytes)
+{
+ struct siprand_state *state = get_cpu_ptr(&net_rand_state);
+ u8 *ptr = buf;
+
+ while (bytes >= sizeof(u32)) {
+ put_unaligned(siprand_u32(state), (u32 *)ptr);
+ ptr += sizeof(u32);
+ bytes -= sizeof(u32);
+ }
+
+ if (bytes > 0) {
+ u32 rem = siprand_u32(state);
+
+ do {
+ *ptr++ = (u8)rem;
+ rem >>= BITS_PER_BYTE;
+ } while (--bytes > 0);
+ }
+ put_cpu_ptr(&net_rand_state);
+}
+EXPORT_SYMBOL(prandom_bytes);
+
+/**
+ * prandom_seed - add entropy to pseudo random number generator
+ * @entropy: entropy value
+ *
+ * Add some additional seed material to the prandom pool.
+ * The "entropy" is actually our IP address (the only caller is
+ * the network code), not for unpredictability, but to ensure that
+ * different machines are initialized differently.
+ */
+void prandom_seed(u32 entropy)
+{
+ int i;
+
+ add_device_randomness(&entropy, sizeof(entropy));
+
+ for_each_possible_cpu(i) {
+ struct siprand_state *state = per_cpu_ptr(&net_rand_state, i);
+ unsigned long v0 = state->v0, v1 = state->v1;
+ unsigned long v2 = state->v2, v3 = state->v3;
+
+ do {
+ v3 ^= entropy;
+ PRND_SIPROUND(v0, v1, v2, v3);
+ PRND_SIPROUND(v0, v1, v2, v3);
+ v0 ^= entropy;
+ } while (unlikely(!v0 || !v1 || !v2 || !v3));
+
+ WRITE_ONCE(state->v0, v0);
+ WRITE_ONCE(state->v1, v1);
+ WRITE_ONCE(state->v2, v2);
+ WRITE_ONCE(state->v3, v3);
+ }
+}
+EXPORT_SYMBOL(prandom_seed);
+
+/*
+ * Generate some initially weak seeding values to allow
+ * the prandom_u32() engine to be started.
+ */
+static int __init prandom_init_early(void)
+{
+ int i;
+ unsigned long v0, v1, v2, v3;
+
+ if (!arch_get_random_long(&v0))
+ v0 = jiffies;
+ if (!arch_get_random_long(&v1))
+ v1 = random_get_entropy();
+ v2 = v0 ^ PRND_K0;
+ v3 = v1 ^ PRND_K1;
+
+ for_each_possible_cpu(i) {
+ struct siprand_state *state;
+
+ v3 ^= i;
+ PRND_SIPROUND(v0, v1, v2, v3);
+ PRND_SIPROUND(v0, v1, v2, v3);
+ v0 ^= i;
+
+ state = per_cpu_ptr(&net_rand_state, i);
+ state->v0 = v0; state->v1 = v1;
+ state->v2 = v2; state->v3 = v3;
+ }
+
+ return 0;
+}
+core_initcall(prandom_init_early);
+
+
+/* Stronger reseeding when available, and periodically thereafter. */
+static void prandom_reseed(struct timer_list *unused);
+
+static DEFINE_TIMER(seed_timer, prandom_reseed);
+
+static void prandom_reseed(struct timer_list *unused)
+{
+ unsigned long expires;
+ int i;
+
+ /*
+ * Reinitialize each CPU's PRNG with 128 bits of key.
+ * No locking on the CPUs, but then somewhat random results are,
+ * well, expected.
+ */
+ for_each_possible_cpu(i) {
+ struct siprand_state *state;
+ unsigned long v0 = get_random_long(), v2 = v0 ^ PRND_K0;
+ unsigned long v1 = get_random_long(), v3 = v1 ^ PRND_K1;
+#if BITS_PER_LONG == 32
+ int j;
+
+ /*
+ * On 32-bit machines, hash in two extra words to
+ * approximate 128-bit key length. Not that the hash
+ * has that much security, but this prevents a trivial
+ * 64-bit brute force.
+ */
+ for (j = 0; j < 2; j++) {
+ unsigned long m = get_random_long();
+
+ v3 ^= m;
+ PRND_SIPROUND(v0, v1, v2, v3);
+ PRND_SIPROUND(v0, v1, v2, v3);
+ v0 ^= m;
+ }
+#endif
+ /*
+ * Probably impossible in practice, but there is a
+ * theoretical risk that a race between this reseeding
+ * and the target CPU writing its state back could
+ * create the all-zero SipHash fixed point.
+ *
+ * To ensure that never happens, ensure the state
+ * we write contains no zero words.
+ */
+ state = per_cpu_ptr(&net_rand_state, i);
+ WRITE_ONCE(state->v0, v0 ? v0 : -1ul);
+ WRITE_ONCE(state->v1, v1 ? v1 : -1ul);
+ WRITE_ONCE(state->v2, v2 ? v2 : -1ul);
+ WRITE_ONCE(state->v3, v3 ? v3 : -1ul);
+ }
+
+ /* reseed every ~60 seconds, in [40 .. 80) interval with slack */
+ expires = round_jiffies(jiffies + 40 * HZ + prandom_u32_max(40 * HZ));
+ mod_timer(&seed_timer, expires);
+}
+
+/*
+ * The random ready callback can be called from almost any interrupt.
+ * To avoid worrying about whether it's safe to delay that interrupt
+ * long enough to seed all CPUs, just schedule an immediate timer event.
+ */
+static void prandom_timer_start(struct random_ready_callback *unused)
+{
+ mod_timer(&seed_timer, jiffies);
+}
+
+/*
+ * Start periodic full reseeding as soon as strong
+ * random numbers are available.
+ */
+static int __init prandom_init_late(void)
+{
+ static struct random_ready_callback random_ready = {
+ .func = prandom_timer_start
+ };
+ int ret = add_random_ready_callback(&random_ready);
+
+ if (ret == -EALREADY) {
+ prandom_timer_start(&random_ready);
+ ret = 0;
+ }
+ return ret;
+}
+late_initcall(prandom_init_late);
diff --git a/net/ipv4/netfilter.c b/net/ipv4/netfilter.c
index 8d2e5dc9a827..3d670d5aea34 100644
--- a/net/ipv4/netfilter.c
+++ b/net/ipv4/netfilter.c
@@ -17,17 +17,19 @@
#include <net/netfilter/nf_queue.h>
/* route_me_harder function, used by iptable_nat, iptable_mangle + ip_queue */
-int ip_route_me_harder(struct net *net, struct sk_buff *skb, unsigned int addr_type)
+int ip_route_me_harder(struct net *net, struct sock *sk, struct sk_buff *skb, unsigned int addr_type)
{
const struct iphdr *iph = ip_hdr(skb);
struct rtable *rt;
struct flowi4 fl4 = {};
__be32 saddr = iph->saddr;
- const struct sock *sk = skb_to_full_sk(skb);
- __u8 flags = sk ? inet_sk_flowi_flags(sk) : 0;
+ __u8 flags;
struct net_device *dev = skb_dst(skb)->dev;
unsigned int hh_len;
+ sk = sk_to_full_sk(sk);
+ flags = sk ? inet_sk_flowi_flags(sk) : 0;
+
if (addr_type == RTN_UNSPEC)
addr_type = inet_addr_type_dev_table(net, dev, saddr);
if (addr_type == RTN_LOCAL || addr_type == RTN_UNICAST)
@@ -91,8 +93,8 @@ int nf_ip_reroute(struct sk_buff *skb, const struct nf_queue_entry *entry)
skb->mark == rt_info->mark &&
iph->daddr == rt_info->daddr &&
iph->saddr == rt_info->saddr))
- return ip_route_me_harder(entry->state.net, skb,
- RTN_UNSPEC);
+ return ip_route_me_harder(entry->state.net, entry->state.sk,
+ skb, RTN_UNSPEC);
}
return 0;
}
diff --git a/net/ipv4/netfilter/ipt_SYNPROXY.c b/net/ipv4/netfilter/ipt_SYNPROXY.c
index 690b17ef6a44..d64b1ef43c10 100644
--- a/net/ipv4/netfilter/ipt_SYNPROXY.c
+++ b/net/ipv4/netfilter/ipt_SYNPROXY.c
@@ -54,7 +54,7 @@ synproxy_send_tcp(struct net *net,
skb_dst_set_noref(nskb, skb_dst(skb));
nskb->protocol = htons(ETH_P_IP);
- if (ip_route_me_harder(net, nskb, RTN_UNSPEC))
+ if (ip_route_me_harder(net, nskb->sk, nskb, RTN_UNSPEC))
goto free_nskb;
if (nfct) {
diff --git a/net/ipv4/netfilter/iptable_mangle.c b/net/ipv4/netfilter/iptable_mangle.c
index dea138ca8925..0829f46ddfdd 100644
--- a/net/ipv4/netfilter/iptable_mangle.c
+++ b/net/ipv4/netfilter/iptable_mangle.c
@@ -65,7 +65,7 @@ ipt_mangle_out(struct sk_buff *skb, const struct nf_hook_state *state)
iph->daddr != daddr ||
skb->mark != mark ||
iph->tos != tos) {
- err = ip_route_me_harder(state->net, skb, RTN_UNSPEC);
+ err = ip_route_me_harder(state->net, state->sk, skb, RTN_UNSPEC);
if (err < 0)
ret = NF_DROP_ERR(err);
}
diff --git a/net/ipv4/netfilter/nf_nat_l3proto_ipv4.c b/net/ipv4/netfilter/nf_nat_l3proto_ipv4.c
index 6115bf1ff6f0..6a27766b7d0f 100644
--- a/net/ipv4/netfilter/nf_nat_l3proto_ipv4.c
+++ b/net/ipv4/netfilter/nf_nat_l3proto_ipv4.c
@@ -329,7 +329,7 @@ nf_nat_ipv4_local_fn(void *priv, struct sk_buff *skb,
if (ct->tuplehash[dir].tuple.dst.u3.ip !=
ct->tuplehash[!dir].tuple.src.u3.ip) {
- err = ip_route_me_harder(state->net, skb, RTN_UNSPEC);
+ err = ip_route_me_harder(state->net, state->sk, skb, RTN_UNSPEC);
if (err < 0)
ret = NF_DROP_ERR(err);
}
diff --git a/net/ipv4/netfilter/nf_reject_ipv4.c b/net/ipv4/netfilter/nf_reject_ipv4.c
index 5cd06ba3535d..4996db1f64a1 100644
--- a/net/ipv4/netfilter/nf_reject_ipv4.c
+++ b/net/ipv4/netfilter/nf_reject_ipv4.c
@@ -129,7 +129,7 @@ void nf_send_reset(struct net *net, struct sk_buff *oldskb, int hook)
ip4_dst_hoplimit(skb_dst(nskb)));
nf_reject_ip_tcphdr_put(nskb, oldskb, oth);
- if (ip_route_me_harder(net, nskb, RTN_UNSPEC))
+ if (ip_route_me_harder(net, nskb->sk, nskb, RTN_UNSPEC))
goto free_nskb;
niph = ip_hdr(nskb);
diff --git a/net/ipv4/netfilter/nft_chain_route_ipv4.c b/net/ipv4/netfilter/nft_chain_route_ipv4.c
index 7d82934c46f4..61003768e52b 100644
--- a/net/ipv4/netfilter/nft_chain_route_ipv4.c
+++ b/net/ipv4/netfilter/nft_chain_route_ipv4.c
@@ -50,7 +50,7 @@ static unsigned int nf_route_table_hook(void *priv,
iph->daddr != daddr ||
skb->mark != mark ||
iph->tos != tos) {
- err = ip_route_me_harder(state->net, skb, RTN_UNSPEC);
+ err = ip_route_me_harder(state->net, state->sk, skb, RTN_UNSPEC);
if (err < 0)
ret = NF_DROP_ERR(err);
}
diff --git a/net/ipv4/syncookies.c b/net/ipv4/syncookies.c
index f66b2e6d97a7..1a06850ef3cc 100644
--- a/net/ipv4/syncookies.c
+++ b/net/ipv4/syncookies.c
@@ -296,7 +296,7 @@ struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb)
__u32 cookie = ntohl(th->ack_seq) - 1;
struct sock *ret = sk;
struct request_sock *req;
- int mss;
+ int full_space, mss;
struct rtable *rt;
__u8 rcv_wscale;
struct flowi4 fl4;
@@ -391,8 +391,13 @@ struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb)
/* Try to redo what tcp_v4_send_synack did. */
req->rsk_window_clamp = tp->window_clamp ? :dst_metric(&rt->dst, RTAX_WINDOW);
+ /* limit the window selection if the user enforce a smaller rx buffer */
+ full_space = tcp_full_space(sk);
+ if (sk->sk_userlocks & SOCK_RCVBUF_LOCK &&
+ (req->rsk_window_clamp > full_space || req->rsk_window_clamp == 0))
+ req->rsk_window_clamp = full_space;
- tcp_select_initial_window(sk, tcp_full_space(sk), req->mss,
+ tcp_select_initial_window(sk, full_space, req->mss,
&req->rsk_rcv_wnd, &req->rsk_window_clamp,
ireq->wscale_ok, &rcv_wscale,
dst_metric(&rt->dst, RTAX_INITRWND));
diff --git a/net/ipv6/netfilter.c b/net/ipv6/netfilter.c
index 6d0b1f3e927b..5679fa3f696a 100644
--- a/net/ipv6/netfilter.c
+++ b/net/ipv6/netfilter.c
@@ -17,10 +17,10 @@
#include <net/xfrm.h>
#include <net/netfilter/nf_queue.h>
-int ip6_route_me_harder(struct net *net, struct sk_buff *skb)
+int ip6_route_me_harder(struct net *net, struct sock *sk_partial, struct sk_buff *skb)
{
const struct ipv6hdr *iph = ipv6_hdr(skb);
- struct sock *sk = sk_to_full_sk(skb->sk);
+ struct sock *sk = sk_to_full_sk(sk_partial);
unsigned int hh_len;
struct dst_entry *dst;
int strict = (ipv6_addr_type(&iph->daddr) &
@@ -81,7 +81,7 @@ static int nf_ip6_reroute(struct sk_buff *skb,
if (!ipv6_addr_equal(&iph->daddr, &rt_info->daddr) ||
!ipv6_addr_equal(&iph->saddr, &rt_info->saddr) ||
skb->mark != rt_info->mark)
- return ip6_route_me_harder(entry->state.net, skb);
+ return ip6_route_me_harder(entry->state.net, entry->state.sk, skb);
}
return 0;
}
diff --git a/net/ipv6/netfilter/ip6table_mangle.c b/net/ipv6/netfilter/ip6table_mangle.c
index b0524b18c4fb..acba3757ff60 100644
--- a/net/ipv6/netfilter/ip6table_mangle.c
+++ b/net/ipv6/netfilter/ip6table_mangle.c
@@ -60,7 +60,7 @@ ip6t_mangle_out(struct sk_buff *skb, const struct nf_hook_state *state)
skb->mark != mark ||
ipv6_hdr(skb)->hop_limit != hop_limit ||
flowlabel != *((u_int32_t *)ipv6_hdr(skb)))) {
- err = ip6_route_me_harder(state->net, skb);
+ err = ip6_route_me_harder(state->net, state->sk, skb);
if (err < 0)
ret = NF_DROP_ERR(err);
}
diff --git a/net/ipv6/netfilter/nf_nat_l3proto_ipv6.c b/net/ipv6/netfilter/nf_nat_l3proto_ipv6.c
index ca6d38698b1a..2b6a3b27f670 100644
--- a/net/ipv6/netfilter/nf_nat_l3proto_ipv6.c
+++ b/net/ipv6/netfilter/nf_nat_l3proto_ipv6.c
@@ -352,7 +352,7 @@ nf_nat_ipv6_local_fn(void *priv, struct sk_buff *skb,
if (!nf_inet_addr_cmp(&ct->tuplehash[dir].tuple.dst.u3,
&ct->tuplehash[!dir].tuple.src.u3)) {
- err = ip6_route_me_harder(state->net, skb);
+ err = ip6_route_me_harder(state->net, state->sk, skb);
if (err < 0)
ret = NF_DROP_ERR(err);
}
diff --git a/net/ipv6/netfilter/nft_chain_route_ipv6.c b/net/ipv6/netfilter/nft_chain_route_ipv6.c
index da3f1f8cb325..afe79cb46e63 100644
--- a/net/ipv6/netfilter/nft_chain_route_ipv6.c
+++ b/net/ipv6/netfilter/nft_chain_route_ipv6.c
@@ -52,7 +52,7 @@ static unsigned int nf_route_table_hook(void *priv,
skb->mark != mark ||
ipv6_hdr(skb)->hop_limit != hop_limit ||
flowlabel != *((u_int32_t *)ipv6_hdr(skb)))) {
- err = ip6_route_me_harder(state->net, skb);
+ err = ip6_route_me_harder(state->net, state->sk, skb);
if (err < 0)
ret = NF_DROP_ERR(err);
}
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index bfed7508ba19..98c108baf35e 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -1087,7 +1087,6 @@ static void ipip6_tunnel_bind_dev(struct net_device *dev)
if (tdev && !netif_is_l3_master(tdev)) {
int t_hlen = tunnel->hlen + sizeof(struct iphdr);
- dev->hard_header_len = tdev->hard_header_len + sizeof(struct iphdr);
dev->mtu = tdev->mtu - t_hlen;
if (dev->mtu < IPV6_MIN_MTU)
dev->mtu = IPV6_MIN_MTU;
@@ -1377,7 +1376,6 @@ static void ipip6_tunnel_setup(struct net_device *dev)
dev->priv_destructor = ipip6_dev_free;
dev->type = ARPHRD_SIT;
- dev->hard_header_len = LL_MAX_HEADER + t_hlen;
dev->mtu = ETH_DATA_LEN - t_hlen;
dev->min_mtu = IPV6_MIN_MTU;
dev->max_mtu = IP6_MAX_MTU - t_hlen;
diff --git a/net/ipv6/syncookies.c b/net/ipv6/syncookies.c
index a377be8a9fb4..ec61b67a92be 100644
--- a/net/ipv6/syncookies.c
+++ b/net/ipv6/syncookies.c
@@ -141,7 +141,7 @@ struct sock *cookie_v6_check(struct sock *sk, struct sk_buff *skb)
__u32 cookie = ntohl(th->ack_seq) - 1;
struct sock *ret = sk;
struct request_sock *req;
- int mss;
+ int full_space, mss;
struct dst_entry *dst;
__u8 rcv_wscale;
u32 tsoff = 0;
@@ -246,7 +246,13 @@ struct sock *cookie_v6_check(struct sock *sk, struct sk_buff *skb)
}
req->rsk_window_clamp = tp->window_clamp ? :dst_metric(dst, RTAX_WINDOW);
- tcp_select_initial_window(sk, tcp_full_space(sk), req->mss,
+ /* limit the window selection if the user enforce a smaller rx buffer */
+ full_space = tcp_full_space(sk);
+ if (sk->sk_userlocks & SOCK_RCVBUF_LOCK &&
+ (req->rsk_window_clamp > full_space || req->rsk_window_clamp == 0))
+ req->rsk_window_clamp = full_space;
+
+ tcp_select_initial_window(sk, full_space, req->mss,
&req->rsk_rcv_wnd, &req->rsk_window_clamp,
ireq->wscale_ok, &rcv_wscale,
dst_metric(dst, RTAX_INITRWND));
diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c
index 23a1002ed86d..ad3e515f91f0 100644
--- a/net/iucv/af_iucv.c
+++ b/net/iucv/af_iucv.c
@@ -1571,7 +1571,8 @@ static int iucv_sock_shutdown(struct socket *sock, int how)
break;
}
- if (how == SEND_SHUTDOWN || how == SHUTDOWN_MASK) {
+ if ((how == SEND_SHUTDOWN || how == SHUTDOWN_MASK) &&
+ sk->sk_state == IUCV_CONNECTED) {
if (iucv->transport == AF_IUCV_TRANS_IUCV) {
txmsg.class = 0;
txmsg.tag = 0;
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 3160ffd93a15..98d048630ad2 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1908,19 +1908,24 @@ static bool ieee80211_tx(struct ieee80211_sub_if_data *sdata,
/* device xmit handlers */
+enum ieee80211_encrypt {
+ ENCRYPT_NO,
+ ENCRYPT_MGMT,
+ ENCRYPT_DATA,
+};
+
static int ieee80211_skb_resize(struct ieee80211_sub_if_data *sdata,
struct sk_buff *skb,
- int head_need, bool may_encrypt)
+ int head_need,
+ enum ieee80211_encrypt encrypt)
{
struct ieee80211_local *local = sdata->local;
- struct ieee80211_hdr *hdr;
bool enc_tailroom;
int tail_need = 0;
- hdr = (struct ieee80211_hdr *) skb->data;
- enc_tailroom = may_encrypt &&
- (sdata->crypto_tx_tailroom_needed_cnt ||
- ieee80211_is_mgmt(hdr->frame_control));
+ enc_tailroom = encrypt == ENCRYPT_MGMT ||
+ (encrypt == ENCRYPT_DATA &&
+ sdata->crypto_tx_tailroom_needed_cnt);
if (enc_tailroom) {
tail_need = IEEE80211_ENCRYPT_TAILROOM;
@@ -1952,23 +1957,29 @@ void ieee80211_xmit(struct ieee80211_sub_if_data *sdata,
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
- struct ieee80211_hdr *hdr;
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
int headroom;
- bool may_encrypt;
+ enum ieee80211_encrypt encrypt;
- may_encrypt = !(info->flags & IEEE80211_TX_INTFL_DONT_ENCRYPT);
+ if (info->flags & IEEE80211_TX_INTFL_DONT_ENCRYPT)
+ encrypt = ENCRYPT_NO;
+ else if (ieee80211_is_mgmt(hdr->frame_control))
+ encrypt = ENCRYPT_MGMT;
+ else
+ encrypt = ENCRYPT_DATA;
headroom = local->tx_headroom;
- if (may_encrypt)
+ if (encrypt != ENCRYPT_NO)
headroom += sdata->encrypt_headroom;
headroom -= skb_headroom(skb);
headroom = max_t(int, 0, headroom);
- if (ieee80211_skb_resize(sdata, skb, headroom, may_encrypt)) {
+ if (ieee80211_skb_resize(sdata, skb, headroom, encrypt)) {
ieee80211_free_txskb(&local->hw, skb);
return;
}
+ /* reload after potential resize */
hdr = (struct ieee80211_hdr *) skb->data;
info->control.vif = &sdata->vif;
@@ -2751,7 +2762,7 @@ static struct sk_buff *ieee80211_build_hdr(struct ieee80211_sub_if_data *sdata,
head_need += sdata->encrypt_headroom;
head_need += local->tx_headroom;
head_need = max_t(int, 0, head_need);
- if (ieee80211_skb_resize(sdata, skb, head_need, true)) {
+ if (ieee80211_skb_resize(sdata, skb, head_need, ENCRYPT_DATA)) {
ieee80211_free_txskb(&local->hw, skb);
skb = NULL;
return ERR_PTR(-ENOMEM);
@@ -3414,7 +3425,7 @@ static bool ieee80211_xmit_fast(struct ieee80211_sub_if_data *sdata,
if (unlikely(ieee80211_skb_resize(sdata, skb,
max_t(int, extra_head + hw_headroom -
skb_headroom(skb), 0),
- false))) {
+ ENCRYPT_NO))) {
kfree_skb(skb);
return true;
}
diff --git a/net/netfilter/ipset/ip_set_core.c b/net/netfilter/ipset/ip_set_core.c
index 36ebc40a4313..0427e66bc478 100644
--- a/net/netfilter/ipset/ip_set_core.c
+++ b/net/netfilter/ipset/ip_set_core.c
@@ -488,13 +488,14 @@ ip_set_match_extensions(struct ip_set *set, const struct ip_set_ext *ext,
if (SET_WITH_COUNTER(set)) {
struct ip_set_counter *counter = ext_counter(data, set);
+ ip_set_update_counter(counter, ext, flags);
+
if (flags & IPSET_FLAG_MATCH_COUNTERS &&
!(ip_set_match_counter(ip_set_get_packets(counter),
mext->packets, mext->packets_op) &&
ip_set_match_counter(ip_set_get_bytes(counter),
mext->bytes, mext->bytes_op)))
return false;
- ip_set_update_counter(counter, ext, flags);
}
if (SET_WITH_SKBINFO(set))
ip_set_get_skbinfo(ext_skbinfo(data, set),
diff --git a/net/netfilter/ipvs/ip_vs_core.c b/net/netfilter/ipvs/ip_vs_core.c
index d5e4329579e2..acaeeaf81441 100644
--- a/net/netfilter/ipvs/ip_vs_core.c
+++ b/net/netfilter/ipvs/ip_vs_core.c
@@ -725,12 +725,12 @@ static int ip_vs_route_me_harder(struct netns_ipvs *ipvs, int af,
struct dst_entry *dst = skb_dst(skb);
if (dst->dev && !(dst->dev->flags & IFF_LOOPBACK) &&
- ip6_route_me_harder(ipvs->net, skb) != 0)
+ ip6_route_me_harder(ipvs->net, skb->sk, skb) != 0)
return 1;
} else
#endif
if (!(skb_rtable(skb)->rt_flags & RTCF_LOCAL) &&
- ip_route_me_harder(ipvs->net, skb, RTN_LOCAL) != 0)
+ ip_route_me_harder(ipvs->net, skb->sk, skb, RTN_LOCAL) != 0)
return 1;
return 0;
diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index bd96fd261dba..4e15913e7519 100644
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -1116,10 +1116,13 @@ static void dev_deactivate_queue(struct net_device *dev,
void *_qdisc_default)
{
struct Qdisc *qdisc = rtnl_dereference(dev_queue->qdisc);
+ struct Qdisc *qdisc_default = _qdisc_default;
if (qdisc) {
if (!(qdisc->flags & TCQ_F_BUILTIN))
set_bit(__QDISC_STATE_DEACTIVATED, &qdisc->state);
+
+ rcu_assign_pointer(dev_queue->qdisc, qdisc_default);
}
}
diff --git a/net/tipc/topsrv.c b/net/tipc/topsrv.c
index ec9a7137d267..1c4733153d74 100644
--- a/net/tipc/topsrv.c
+++ b/net/tipc/topsrv.c
@@ -671,12 +671,18 @@ static int tipc_topsrv_start(struct net *net)
ret = tipc_topsrv_work_start(srv);
if (ret < 0)
- return ret;
+ goto err_start;
ret = tipc_topsrv_create_listener(srv);
if (ret < 0)
- tipc_topsrv_work_stop(srv);
+ goto err_create;
+ return 0;
+
+err_create:
+ tipc_topsrv_work_stop(srv);
+err_start:
+ kfree(srv);
return ret;
}
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 935aebf15010..c7825b951f72 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -3374,7 +3374,7 @@ static void print_rd_rules(const struct ieee80211_regdomain *rd)
power_rule = ®_rule->power_rule;
if (reg_rule->flags & NL80211_RRF_AUTO_BW)
- snprintf(bw, sizeof(bw), "%d KHz, %d KHz AUTO",
+ snprintf(bw, sizeof(bw), "%d KHz, %u KHz AUTO",
freq_range->max_bandwidth_khz,
reg_get_max_bandwidth(rd, reg_rule));
else
diff --git a/net/x25/af_x25.c b/net/x25/af_x25.c
index bd1cbbfe5924..372f4194db5a 100644
--- a/net/x25/af_x25.c
+++ b/net/x25/af_x25.c
@@ -824,7 +824,7 @@ static int x25_connect(struct socket *sock, struct sockaddr *uaddr,
sock->state = SS_CONNECTED;
rc = 0;
out_put_neigh:
- if (rc) {
+ if (rc && x25->neighbour) {
read_lock_bh(&x25_list_lock);
x25_neigh_put(x25->neighbour);
x25->neighbour = NULL;
diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index a649d7c2f48c..84dea0ad1666 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -1825,6 +1825,7 @@ int xfrm_alloc_spi(struct xfrm_state *x, u32 low, u32 high)
int err = -ENOENT;
__be32 minspi = htonl(low);
__be32 maxspi = htonl(high);
+ __be32 newspi = 0;
u32 mark = x->mark.v & x->mark.m;
spin_lock_bh(&x->lock);
@@ -1843,21 +1844,22 @@ int xfrm_alloc_spi(struct xfrm_state *x, u32 low, u32 high)
xfrm_state_put(x0);
goto unlock;
}
- x->id.spi = minspi;
+ newspi = minspi;
} else {
u32 spi = 0;
for (h = 0; h < high-low+1; h++) {
spi = low + prandom_u32()%(high-low+1);
x0 = xfrm_state_lookup(net, mark, &x->id.daddr, htonl(spi), x->id.proto, x->props.family);
if (x0 == NULL) {
- x->id.spi = htonl(spi);
+ newspi = htonl(spi);
break;
}
xfrm_state_put(x0);
}
}
- if (x->id.spi) {
+ if (newspi) {
spin_lock_bh(&net->xfrm.xfrm_state_lock);
+ x->id.spi = newspi;
h = xfrm_spi_hash(net, &x->id.daddr, x->id.spi, x->id.proto, x->props.family);
hlist_add_head_rcu(&x->byspi, net->xfrm.state_byspi + h);
spin_unlock_bh(&net->xfrm.xfrm_state_lock);
diff --git a/security/selinux/ibpkey.c b/security/selinux/ibpkey.c
index 0a4b89d48297..cb05ae28ce00 100644
--- a/security/selinux/ibpkey.c
+++ b/security/selinux/ibpkey.c
@@ -161,8 +161,10 @@ static int sel_ib_pkey_sid_slow(u64 subnet_prefix, u16 pkey_num, u32 *sid)
* is valid, it just won't be added to the cache.
*/
new = kzalloc(sizeof(*new), GFP_ATOMIC);
- if (!new)
+ if (!new) {
+ ret = -ENOMEM;
goto out;
+ }
new->psec.subnet_prefix = subnet_prefix;
new->psec.pkey = pkey_num;
diff --git a/sound/hda/ext/hdac_ext_controller.c b/sound/hda/ext/hdac_ext_controller.c
index 84b44cdae28a..b96abebcfd1a 100644
--- a/sound/hda/ext/hdac_ext_controller.c
+++ b/sound/hda/ext/hdac_ext_controller.c
@@ -156,6 +156,8 @@ struct hdac_ext_link *snd_hdac_ext_bus_get_link(struct hdac_bus *bus,
return NULL;
if (bus->idx != bus_idx)
return NULL;
+ if (addr < 0 || addr > 31)
+ return NULL;
list_for_each_entry(hlink, &bus->hlink_list, list) {
for (i = 0; i < HDA_MAX_CODECS; i++) {
diff --git a/tools/perf/util/scripting-engines/trace-event-python.c b/tools/perf/util/scripting-engines/trace-event-python.c
index 9569cc06e0a7..2814251df06b 100644
--- a/tools/perf/util/scripting-engines/trace-event-python.c
+++ b/tools/perf/util/scripting-engines/trace-event-python.c
@@ -1493,7 +1493,6 @@ static void _free_command_line(wchar_t **command_line, int num)
static int python_start_script(const char *script, int argc, const char **argv)
{
struct tables *tables = &tables_global;
- PyMODINIT_FUNC (*initfunc)(void);
#if PY_MAJOR_VERSION < 3
const char **command_line;
#else
@@ -1508,20 +1507,18 @@ static int python_start_script(const char *script, int argc, const char **argv)
FILE *fp;
#if PY_MAJOR_VERSION < 3
- initfunc = initperf_trace_context;
command_line = malloc((argc + 1) * sizeof(const char *));
command_line[0] = script;
for (i = 1; i < argc + 1; i++)
command_line[i] = argv[i - 1];
+ PyImport_AppendInittab(name, initperf_trace_context);
#else
- initfunc = PyInit_perf_trace_context;
command_line = malloc((argc + 1) * sizeof(wchar_t *));
command_line[0] = Py_DecodeLocale(script, NULL);
for (i = 1; i < argc + 1; i++)
command_line[i] = Py_DecodeLocale(argv[i - 1], NULL);
+ PyImport_AppendInittab(name, PyInit_perf_trace_context);
#endif
-
- PyImport_AppendInittab(name, initfunc);
Py_Initialize();
#if PY_MAJOR_VERSION < 3
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index f016d1b330e5..6a2037b52098 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -488,6 +488,7 @@ static void perf_event__mmap2_swap(union perf_event *event,
event->mmap2.maj = bswap_32(event->mmap2.maj);
event->mmap2.min = bswap_32(event->mmap2.min);
event->mmap2.ino = bswap_64(event->mmap2.ino);
+ event->mmap2.ino_generation = bswap_64(event->mmap2.ino_generation);
if (sample_id_all) {
void *data = &event->mmap2.filename;
diff --git a/tools/testing/selftests/proc/proc-loadavg-001.c b/tools/testing/selftests/proc/proc-loadavg-001.c
index fcff7047000d..8edaafc2b92f 100644
--- a/tools/testing/selftests/proc/proc-loadavg-001.c
+++ b/tools/testing/selftests/proc/proc-loadavg-001.c
@@ -14,7 +14,6 @@
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* Test that /proc/loadavg correctly reports last pid in pid namespace. */
-#define _GNU_SOURCE
#include <errno.h>
#include <sched.h>
#include <sys/types.h>
diff --git a/tools/testing/selftests/proc/proc-self-syscall.c b/tools/testing/selftests/proc/proc-self-syscall.c
index 5ab5f4810e43..7b9018fad092 100644
--- a/tools/testing/selftests/proc/proc-self-syscall.c
+++ b/tools/testing/selftests/proc/proc-self-syscall.c
@@ -13,7 +13,6 @@
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
-#define _GNU_SOURCE
#include <unistd.h>
#include <sys/syscall.h>
#include <sys/types.h>
diff --git a/tools/testing/selftests/proc/proc-uptime-002.c b/tools/testing/selftests/proc/proc-uptime-002.c
index 30e2b7849089..e7ceabed7f51 100644
--- a/tools/testing/selftests/proc/proc-uptime-002.c
+++ b/tools/testing/selftests/proc/proc-uptime-002.c
@@ -15,7 +15,6 @@
*/
// Test that values in /proc/uptime increment monotonically
// while shifting across CPUs.
-#define _GNU_SOURCE
#undef NDEBUG
#include <assert.h>
#include <unistd.h>
prev parent reply other threads:[~2020-11-19 12:15 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-19 12:14 Linux 4.19.158 Greg Kroah-Hartman
2020-11-19 12:14 ` Greg Kroah-Hartman [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=160578809119093@kroah.com \
--to=gregkh@linuxfoundation.org \
--cc=akpm@linux-foundation.org \
--cc=jslaby@suse.cz \
--cc=linux-kernel@vger.kernel.org \
--cc=lwn@lwn.net \
--cc=stable@vger.kernel.org \
--cc=torvalds@linux-foundation.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.