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Message-Id: <1459260529-15117-2-git-send-email-luis.henriques@canonical.com>
Date: Tue, 29 Mar 2016 15:08:49 +0100
From: Luis Henriques <luis.henriques@...onical.com>
To: linux-kernel@...r.kernel.org, stable@...r.kernel.org,
kernel-team@...ts.ubuntu.com
Cc: lwn@....net
Subject: Re: [3.16.y-ckt stable] Linux 3.16.7-ckt26
diff --git a/Documentation/filesystems/efivarfs.txt b/Documentation/filesystems/efivarfs.txt
index c477af086e65..686a64bba775 100644
--- a/Documentation/filesystems/efivarfs.txt
+++ b/Documentation/filesystems/efivarfs.txt
@@ -14,3 +14,10 @@ filesystem.
efivarfs is typically mounted like this,
mount -t efivarfs none /sys/firmware/efi/efivars
+
+Due to the presence of numerous firmware bugs where removing non-standard
+UEFI variables causes the system firmware to fail to POST, efivarfs
+files that are not well-known standardized variables are created
+as immutable files. This doesn't prevent removal - "chattr -i" will work -
+but it does prevent this kind of failure from being accomplished
+accidentally.
diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index ab42c95f9985..36aa39eee48f 100644
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt
@@ -1210,6 +1210,14 @@ accept_ra_defrtr - BOOLEAN
Functional default: enabled if accept_ra is enabled.
disabled if accept_ra is disabled.
+accept_ra_min_hop_limit - INTEGER
+ Minimum hop limit Information in Router Advertisement.
+
+ Hop limit Information in Router Advertisement less than this
+ variable shall be ignored.
+
+ Default: 1
+
accept_ra_pinfo - BOOLEAN
Learn Prefix Information in Router Advertisement.
diff --git a/Makefile b/Makefile
index 932a80066586..e2e6dab15bd8 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
VERSION = 3
PATCHLEVEL = 16
SUBLEVEL = 7
-EXTRAVERSION =-ckt25
+EXTRAVERSION =-ckt26
NAME = Museum of Fishiegoodies
# *DOCUMENTATION*
diff --git a/arch/arm/boot/dts/kirkwood-ds112.dts b/arch/arm/boot/dts/kirkwood-ds112.dts
index bf4143c6cb8f..b84af3da8c84 100644
--- a/arch/arm/boot/dts/kirkwood-ds112.dts
+++ b/arch/arm/boot/dts/kirkwood-ds112.dts
@@ -14,7 +14,7 @@
#include "kirkwood-synology.dtsi"
/ {
- model = "Synology DS111";
+ model = "Synology DS112";
compatible = "synology,ds111", "marvell,kirkwood";
memory {
diff --git a/arch/arm/kvm/guest.c b/arch/arm/kvm/guest.c
index 2786eae10c0d..f3f6415b7828 100644
--- a/arch/arm/kvm/guest.c
+++ b/arch/arm/kvm/guest.c
@@ -183,7 +183,7 @@ static int get_timer_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg)
u64 val;
val = kvm_arm_timer_get_reg(vcpu, reg->id);
- return copy_to_user(uaddr, &val, KVM_REG_SIZE(reg->id));
+ return copy_to_user(uaddr, &val, KVM_REG_SIZE(reg->id)) ? -EFAULT : 0;
}
static unsigned long num_core_regs(void)
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index 027fefba8b96..bdf9139fd92b 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -691,15 +691,15 @@ static int simulate_sync(struct pt_regs *regs, unsigned int opcode)
asmlinkage void do_ov(struct pt_regs *regs)
{
enum ctx_state prev_state;
- siginfo_t info;
+ siginfo_t info = {
+ .si_signo = SIGFPE,
+ .si_code = FPE_INTOVF,
+ .si_addr = (void __user *)regs->cp0_epc,
+ };
prev_state = exception_enter();
die_if_kernel("Integer overflow", regs);
- info.si_code = FPE_INTOVF;
- info.si_signo = SIGFPE;
- info.si_errno = 0;
- info.si_addr = (void __user *) regs->cp0_epc;
force_sig_info(SIGFPE, &info, current);
exception_exit(prev_state);
}
@@ -802,7 +802,7 @@ out:
static void do_trap_or_bp(struct pt_regs *regs, unsigned int code,
const char *str)
{
- siginfo_t info;
+ siginfo_t info = { 0 };
char b[40];
#ifdef CONFIG_KGDB_LOW_LEVEL_TRAP
@@ -830,7 +830,6 @@ static void do_trap_or_bp(struct pt_regs *regs, unsigned int code,
else
info.si_code = FPE_INTOVF;
info.si_signo = SIGFPE;
- info.si_errno = 0;
info.si_addr = (void __user *) regs->cp0_epc;
force_sig_info(SIGFPE, &info, current);
break;
diff --git a/arch/powerpc/kernel/module_64.c b/arch/powerpc/kernel/module_64.c
index ec4106224d89..1a24e1c47588 100644
--- a/arch/powerpc/kernel/module_64.c
+++ b/arch/powerpc/kernel/module_64.c
@@ -337,7 +337,7 @@ static void dedotify(Elf64_Sym *syms, unsigned int numsyms, char *strtab)
if (syms[i].st_shndx == SHN_UNDEF) {
char *name = strtab + syms[i].st_name;
if (name[0] == '.')
- memmove(name, name+1, strlen(name));
+ syms[i].st_name++;
}
}
}
diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
index 6fafff75f24a..f3197994b733 100644
--- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S
+++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
@@ -1280,6 +1280,20 @@ END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_207S)
std r6, VCPU_ACOP(r9)
stw r7, VCPU_GUEST_PID(r9)
std r8, VCPU_WORT(r9)
+ /*
+ * Restore various registers to 0, where non-zero values
+ * set by the guest could disrupt the host.
+ */
+ li r0, 0
+ mtspr SPRN_IAMR, r0
+ mtspr SPRN_CIABR, r0
+ mtspr SPRN_DAWRX, r0
+ mtspr SPRN_TCSCR, r0
+ mtspr SPRN_WORT, r0
+ /* Set MMCRS to 1<<31 to freeze and disable the SPMC counters */
+ li r0, 1
+ sldi r0, r0, 31
+ mtspr SPRN_MMCRS, r0
8:
/* Save and reset AMR and UAMOR before turning on the MMU */
diff --git a/arch/x86/ia32/ia32entry.S b/arch/x86/ia32/ia32entry.S
index 92a2e9333620..b74ac9c5710b 100644
--- a/arch/x86/ia32/ia32entry.S
+++ b/arch/x86/ia32/ia32entry.S
@@ -422,6 +422,7 @@ ENTRY(ia32_syscall)
/*CFI_REL_OFFSET cs,CS-RIP*/
CFI_REL_OFFSET rip,RIP-RIP
PARAVIRT_ADJUST_EXCEPTION_FRAME
+ ASM_CLAC /* Do this early to minimize exposure */
SWAPGS
/*
* No need to follow this irqs on/off section: the syscall
diff --git a/arch/x86/kernel/acpi/sleep.c b/arch/x86/kernel/acpi/sleep.c
index 31368207837c..8255d2fe8cfa 100644
--- a/arch/x86/kernel/acpi/sleep.c
+++ b/arch/x86/kernel/acpi/sleep.c
@@ -16,6 +16,7 @@
#include <asm/cacheflush.h>
#include <asm/realmode.h>
+#include <linux/ftrace.h>
#include "../../realmode/rm/wakeup.h"
#include "sleep.h"
@@ -107,7 +108,13 @@ int x86_acpi_suspend_lowlevel(void)
saved_magic = 0x123456789abcdef0L;
#endif /* CONFIG_64BIT */
+ /*
+ * Pause/unpause graph tracing around do_suspend_lowlevel as it has
+ * inconsistent call/return info after it jumps to the wakeup vector.
+ */
+ pause_graph_tracing();
do_suspend_lowlevel();
+ unpause_graph_tracing();
return 0;
}
diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h
index 484711d2c71f..ed6eb79d3f6b 100644
--- a/arch/x86/kvm/paging_tmpl.h
+++ b/arch/x86/kvm/paging_tmpl.h
@@ -257,7 +257,7 @@ static int FNAME(update_accessed_dirty_bits)(struct kvm_vcpu *vcpu,
return ret;
mark_page_dirty(vcpu->kvm, table_gfn);
- walker->ptes[level] = pte;
+ walker->ptes[level - 1] = pte;
}
return 0;
}
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index d1d7086f0e9b..e7cd4c833c40 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -1574,6 +1574,13 @@ static void add_atomic_switch_msr(struct vcpu_vmx *vmx, unsigned msr,
return;
}
break;
+ case MSR_IA32_PEBS_ENABLE:
+ /* PEBS needs a quiescent period after being disabled (to write
+ * a record). Disabling PEBS through VMX MSR swapping doesn't
+ * provide that period, so a CPU could write host's record into
+ * guest's memory.
+ */
+ wrmsrl(MSR_IA32_PEBS_ENABLE, 0);
}
for (i = 0; i < m->nr; ++i)
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index e9b9fc00da15..89e06ec39dd7 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -2025,6 +2025,8 @@ static void accumulate_steal_time(struct kvm_vcpu *vcpu)
static void record_steal_time(struct kvm_vcpu *vcpu)
{
+ accumulate_steal_time(vcpu);
+
if (!(vcpu->arch.st.msr_val & KVM_MSR_ENABLED))
return;
@@ -2157,12 +2159,6 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
if (!(data & KVM_MSR_ENABLED))
break;
- vcpu->arch.st.last_steal = current->sched_info.run_delay;
-
- preempt_disable();
- accumulate_steal_time(vcpu);
- preempt_enable();
-
kvm_make_request(KVM_REQ_STEAL_UPDATE, vcpu);
break;
@@ -2859,7 +2855,6 @@ void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
vcpu->cpu = cpu;
}
- accumulate_steal_time(vcpu);
kvm_make_request(KVM_REQ_STEAL_UPDATE, vcpu);
}
diff --git a/block/bio.c b/block/bio.c
index 6467e6afdcd9..529e4195724e 100644
--- a/block/bio.c
+++ b/block/bio.c
@@ -1110,9 +1110,12 @@ int bio_uncopy_user(struct bio *bio)
ret = __bio_copy_iov(bio, bmd->sgvecs, bmd->nr_sgvecs,
bio_data_dir(bio) == READ,
0, bmd->is_our_pages);
- else if (bmd->is_our_pages)
- bio_for_each_segment_all(bvec, bio, i)
- __free_page(bvec->bv_page);
+ else {
+ ret = -EINTR;
+ if (bmd->is_our_pages)
+ bio_for_each_segment_all(bvec, bio, i)
+ __free_page(bvec->bv_page);
+ }
}
kfree(bmd);
bio_put(bio);
diff --git a/crypto/ablkcipher.c b/crypto/ablkcipher.c
index 5da16526c890..970b48e70624 100644
--- a/crypto/ablkcipher.c
+++ b/crypto/ablkcipher.c
@@ -457,6 +457,7 @@ static int crypto_init_givcipher_ops(struct crypto_tfm *tfm, u32 type,
crt->givdecrypt = alg->givdecrypt ?: no_givdecrypt;
crt->base = __crypto_ablkcipher_cast(tfm);
crt->ivsize = alg->ivsize;
+ crt->has_setkey = alg->max_keysize;
return 0;
}
diff --git a/crypto/blkcipher.c b/crypto/blkcipher.c
index 7180cb2fe026..3c551d46aa3b 100644
--- a/crypto/blkcipher.c
+++ b/crypto/blkcipher.c
@@ -471,6 +471,7 @@ static int crypto_init_blkcipher_ops_async(struct crypto_tfm *tfm)
}
crt->base = __crypto_ablkcipher_cast(tfm);
crt->ivsize = alg->ivsize;
+ crt->has_setkey = alg->max_keysize;
return 0;
}
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 30af1877fcea..b87512ff6292 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -674,19 +674,18 @@ static int ata_ioc32(struct ata_port *ap)
int ata_sas_scsi_ioctl(struct ata_port *ap, struct scsi_device *scsidev,
int cmd, void __user *arg)
{
- int val = -EINVAL, rc = -EINVAL;
+ unsigned long val;
+ int rc = -EINVAL;
unsigned long flags;
switch (cmd) {
- case ATA_IOC_GET_IO32:
+ case HDIO_GET_32BIT:
spin_lock_irqsave(ap->lock, flags);
val = ata_ioc32(ap);
spin_unlock_irqrestore(ap->lock, flags);
- if (copy_to_user(arg, &val, 1))
- return -EFAULT;
- return 0;
+ return put_user(val, (unsigned long __user *)arg);
- case ATA_IOC_SET_IO32:
+ case HDIO_SET_32BIT:
val = (unsigned long) arg;
rc = 0;
spin_lock_irqsave(ap->lock, flags);
diff --git a/drivers/dma/dw/core.c b/drivers/dma/dw/core.c
index e968366e6cdd..43c8de0f00f4 100644
--- a/drivers/dma/dw/core.c
+++ b/drivers/dma/dw/core.c
@@ -169,7 +169,6 @@ static void dwc_initialize(struct dw_dma_chan *dwc)
/* Enable interrupts */
channel_set_bit(dw, MASK.XFER, dwc->mask);
- channel_set_bit(dw, MASK.BLOCK, dwc->mask);
channel_set_bit(dw, MASK.ERROR, dwc->mask);
dwc->initialized = true;
@@ -596,6 +595,9 @@ static void dwc_handle_cyclic(struct dw_dma *dw, struct dw_dma_chan *dwc,
spin_unlock_irqrestore(&dwc->lock, flags);
}
+
+ /* Re-enable interrupts */
+ channel_set_bit(dw, MASK.BLOCK, dwc->mask);
}
/* ------------------------------------------------------------------------- */
@@ -626,11 +628,8 @@ static void dw_dma_tasklet(unsigned long data)
dwc_scan_descriptors(dw, dwc);
}
- /*
- * Re-enable interrupts.
- */
+ /* Re-enable interrupts */
channel_set_bit(dw, MASK.XFER, dw->all_chan_mask);
- channel_set_bit(dw, MASK.BLOCK, dw->all_chan_mask);
channel_set_bit(dw, MASK.ERROR, dw->all_chan_mask);
}
@@ -1216,6 +1215,7 @@ static void dwc_free_chan_resources(struct dma_chan *chan)
int dw_dma_cyclic_start(struct dma_chan *chan)
{
struct dw_dma_chan *dwc = to_dw_dma_chan(chan);
+ struct dw_dma *dw = to_dw_dma(chan->device);
unsigned long flags;
if (!test_bit(DW_DMA_IS_CYCLIC, &dwc->flags)) {
@@ -1224,7 +1224,12 @@ int dw_dma_cyclic_start(struct dma_chan *chan)
}
spin_lock_irqsave(&dwc->lock, flags);
+
+ /* Enable interrupts to perform cyclic transfer */
+ channel_set_bit(dw, MASK.BLOCK, dwc->mask);
+
dwc_dostart(dwc, dwc->cdesc->desc[0]);
+
spin_unlock_irqrestore(&dwc->lock, flags);
return 0;
diff --git a/drivers/firmware/dmi_scan.c b/drivers/firmware/dmi_scan.c
index 48142b88e672..35286fe52823 100644
--- a/drivers/firmware/dmi_scan.c
+++ b/drivers/firmware/dmi_scan.c
@@ -493,7 +493,6 @@ static int __init dmi_present(const u8 *buf)
dmi_ver = smbios_ver;
else
dmi_ver = (buf[14] & 0xF0) << 4 | (buf[14] & 0x0F);
- dmi_ver <<= 8;
dmi_num = (buf[13] << 8) | buf[12];
dmi_len = (buf[7] << 8) | buf[6];
dmi_base = (buf[11] << 24) | (buf[10] << 16) |
@@ -502,10 +501,10 @@ static int __init dmi_present(const u8 *buf)
if (dmi_walk_early(dmi_decode) == 0) {
if (smbios_ver) {
pr_info("SMBIOS %d.%d present.\n",
- dmi_ver >> 16, (dmi_ver >> 8) & 0xFF);
+ dmi_ver >> 8, dmi_ver & 0xFF);
} else {
pr_info("Legacy DMI %d.%d present.\n",
- dmi_ver >> 16, (dmi_ver >> 8) & 0xFF);
+ dmi_ver >> 8, dmi_ver & 0xFF);
}
dmi_format_ids(dmi_ids_string, sizeof(dmi_ids_string));
printk(KERN_DEBUG "DMI: %s\n", dmi_ids_string);
diff --git a/drivers/firmware/efi/efivars.c b/drivers/firmware/efi/efivars.c
index 463c56545ae8..c807409630cc 100644
--- a/drivers/firmware/efi/efivars.c
+++ b/drivers/firmware/efi/efivars.c
@@ -220,7 +220,7 @@ sanity_check(struct efi_variable *var, efi_char16_t *name, efi_guid_t vendor,
}
if ((attributes & ~EFI_VARIABLE_MASK) != 0 ||
- efivar_validate(name, data, size) == false) {
+ efivar_validate(vendor, name, data, size) == false) {
printk(KERN_ERR "efivars: Malformed variable content\n");
return -EINVAL;
}
@@ -446,7 +446,8 @@ static ssize_t efivar_create(struct file *filp, struct kobject *kobj,
}
if ((attributes & ~EFI_VARIABLE_MASK) != 0 ||
- efivar_validate(name, data, size) == false) {
+ efivar_validate(new_var->VendorGuid, name, data,
+ size) == false) {
printk(KERN_ERR "efivars: Malformed variable content\n");
return -EINVAL;
}
@@ -541,35 +542,27 @@ efivar_create_sysfs_entry(struct efivar_entry *new_var)
{
int i, short_name_size;
char *short_name;
- unsigned long variable_name_size;
- efi_char16_t *variable_name;
-
- variable_name = new_var->var.VariableName;
- variable_name_size = ucs2_strlen(variable_name) * sizeof(efi_char16_t);
+ unsigned long utf8_name_size;
+ efi_char16_t *variable_name = new_var->var.VariableName;
/*
- * Length of the variable bytes in ASCII, plus the '-' separator,
+ * Length of the variable bytes in UTF8, plus the '-' separator,
* plus the GUID, plus trailing NUL
*/
- short_name_size = variable_name_size / sizeof(efi_char16_t)
- + 1 + EFI_VARIABLE_GUID_LEN + 1;
-
- short_name = kzalloc(short_name_size, GFP_KERNEL);
+ utf8_name_size = ucs2_utf8size(variable_name);
+ short_name_size = utf8_name_size + 1 + EFI_VARIABLE_GUID_LEN + 1;
+ short_name = kmalloc(short_name_size, GFP_KERNEL);
if (!short_name)
return 1;
- /* Convert Unicode to normal chars (assume top bits are 0),
- ala UTF-8 */
- for (i=0; i < (int)(variable_name_size / sizeof(efi_char16_t)); i++) {
- short_name[i] = variable_name[i] & 0xFF;
- }
+ ucs2_as_utf8(short_name, variable_name, short_name_size);
+
/* This is ugly, but necessary to separate one vendor's
private variables from another's. */
-
- *(short_name + strlen(short_name)) = '-';
+ short_name[utf8_name_size] = '-';
efi_guid_unparse(&new_var->var.VendorGuid,
- short_name + strlen(short_name));
+ short_name + utf8_name_size + 1);
new_var->kobj.kset = efivars_kset;
diff --git a/drivers/firmware/efi/vars.c b/drivers/firmware/efi/vars.c
index 5abe943e3404..4e2f46938bf0 100644
--- a/drivers/firmware/efi/vars.c
+++ b/drivers/firmware/efi/vars.c
@@ -165,67 +165,133 @@ validate_ascii_string(efi_char16_t *var_name, int match, u8 *buffer,
}
struct variable_validate {
+ efi_guid_t vendor;
char *name;
bool (*validate)(efi_char16_t *var_name, int match, u8 *data,
unsigned long len);
};
+/*
+ * This is the list of variables we need to validate, as well as the
+ * whitelist for what we think is safe not to default to immutable.
+ *
+ * If it has a validate() method that's not NULL, it'll go into the
+ * validation routine. If not, it is assumed valid, but still used for
+ * whitelisting.
+ *
+ * Note that it's sorted by {vendor,name}, but globbed names must come after
+ * any other name with the same prefix.
+ */
static const struct variable_validate variable_validate[] = {
- { "BootNext", validate_uint16 },
- { "BootOrder", validate_boot_order },
- { "DriverOrder", validate_boot_order },
- { "Boot*", validate_load_option },
- { "Driver*", validate_load_option },
- { "ConIn", validate_device_path },
- { "ConInDev", validate_device_path },
- { "ConOut", validate_device_path },
- { "ConOutDev", validate_device_path },
- { "ErrOut", validate_device_path },
- { "ErrOutDev", validate_device_path },
- { "Timeout", validate_uint16 },
- { "Lang", validate_ascii_string },
- { "PlatformLang", validate_ascii_string },
- { "", NULL },
+ { EFI_GLOBAL_VARIABLE_GUID, "BootNext", validate_uint16 },
+ { EFI_GLOBAL_VARIABLE_GUID, "BootOrder", validate_boot_order },
+ { EFI_GLOBAL_VARIABLE_GUID, "Boot*", validate_load_option },
+ { EFI_GLOBAL_VARIABLE_GUID, "DriverOrder", validate_boot_order },
+ { EFI_GLOBAL_VARIABLE_GUID, "Driver*", validate_load_option },
+ { EFI_GLOBAL_VARIABLE_GUID, "ConIn", validate_device_path },
+ { EFI_GLOBAL_VARIABLE_GUID, "ConInDev", validate_device_path },
+ { EFI_GLOBAL_VARIABLE_GUID, "ConOut", validate_device_path },
+ { EFI_GLOBAL_VARIABLE_GUID, "ConOutDev", validate_device_path },
+ { EFI_GLOBAL_VARIABLE_GUID, "ErrOut", validate_device_path },
+ { EFI_GLOBAL_VARIABLE_GUID, "ErrOutDev", validate_device_path },
+ { EFI_GLOBAL_VARIABLE_GUID, "Lang", validate_ascii_string },
+ { EFI_GLOBAL_VARIABLE_GUID, "OsIndications", NULL },
+ { EFI_GLOBAL_VARIABLE_GUID, "PlatformLang", validate_ascii_string },
+ { EFI_GLOBAL_VARIABLE_GUID, "Timeout", validate_uint16 },
+ { LINUX_EFI_CRASH_GUID, "*", NULL },
+ { NULL_GUID, "", NULL },
};
+static bool
+variable_matches(const char *var_name, size_t len, const char *match_name,
+ int *match)
+{
+ for (*match = 0; ; (*match)++) {
+ char c = match_name[*match];
+ char u = var_name[*match];
+
+ /* Wildcard in the matching name means we've matched */
+ if (c == '*')
+ return true;
+
+ /* Case sensitive match */
+ if (!c && *match == len)
+ return true;
+
+ if (c != u)
+ return false;
+
+ if (!c)
+ return true;
+ }
+ return true;
+}
+
bool
-efivar_validate(efi_char16_t *var_name, u8 *data, unsigned long len)
+efivar_validate(efi_guid_t vendor, efi_char16_t *var_name, u8 *data,
+ unsigned long data_size)
{
int i;
- u16 *unicode_name = var_name;
+ unsigned long utf8_size;
+ u8 *utf8_name;
- for (i = 0; variable_validate[i].validate != NULL; i++) {
- const char *name = variable_validate[i].name;
- int match;
+ utf8_size = ucs2_utf8size(var_name);
+ utf8_name = kmalloc(utf8_size + 1, GFP_KERNEL);
+ if (!utf8_name)
+ return false;
- for (match = 0; ; match++) {
- char c = name[match];
- u16 u = unicode_name[match];
+ ucs2_as_utf8(utf8_name, var_name, utf8_size);
+ utf8_name[utf8_size] = '\0';
- /* All special variables are plain ascii */
- if (u > 127)
- return true;
+ for (i = 0; variable_validate[i].name[0] != '\0'; i++) {
+ const char *name = variable_validate[i].name;
+ int match = 0;
- /* Wildcard in the matching name means we've matched */
- if (c == '*')
- return variable_validate[i].validate(var_name,
- match, data, len);
+ if (efi_guidcmp(vendor, variable_validate[i].vendor))
+ continue;
- /* Case sensitive match */
- if (c != u)
+ if (variable_matches(utf8_name, utf8_size+1, name, &match)) {
+ if (variable_validate[i].validate == NULL)
break;
-
- /* Reached the end of the string while matching */
- if (!c)
- return variable_validate[i].validate(var_name,
- match, data, len);
+ kfree(utf8_name);
+ return variable_validate[i].validate(var_name, match,
+ data, data_size);
}
}
-
+ kfree(utf8_name);
return true;
}
EXPORT_SYMBOL_GPL(efivar_validate);
+bool
+efivar_variable_is_removable(efi_guid_t vendor, const char *var_name,
+ size_t len)
+{
+ int i;
+ bool found = false;
+ int match = 0;
+
+ /*
+ * Check if our variable is in the validated variables list
+ */
+ for (i = 0; variable_validate[i].name[0] != '\0'; i++) {
+ if (efi_guidcmp(variable_validate[i].vendor, vendor))
+ continue;
+
+ if (variable_matches(var_name, len,
+ variable_validate[i].name, &match)) {
+ found = true;
+ break;
+ }
+ }
+
+ /*
+ * If it's in our list, it is removable.
+ */
+ return found;
+}
+EXPORT_SYMBOL_GPL(efivar_variable_is_removable);
+
static efi_status_t
check_var_size(u32 attributes, unsigned long size)
{
@@ -805,7 +871,7 @@ int efivar_entry_set_get_size(struct efivar_entry *entry, u32 attributes,
*set = false;
- if (efivar_validate(name, data, *size) == false)
+ if (efivar_validate(*vendor, name, data, *size) == false)
return -EINVAL;
/*
diff --git a/drivers/gpio/gpio-rcar.c b/drivers/gpio/gpio-rcar.c
index c3ea3e9e3d14..b97094ce448f 100644
--- a/drivers/gpio/gpio-rcar.c
+++ b/drivers/gpio/gpio-rcar.c
@@ -186,6 +186,44 @@ static inline struct gpio_rcar_priv *gpio_to_priv(struct gpio_chip *chip)
return container_of(chip, struct gpio_rcar_priv, gpio_chip);
}
+static void gpio_rcar_irq_bus_lock(struct irq_data *d)
+{
+ struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
+ struct gpio_rcar_priv *p = gpio_to_priv(gc);
+
+ pm_runtime_get_sync(&p->pdev->dev);
+}
+
+static void gpio_rcar_irq_bus_sync_unlock(struct irq_data *d)
+{
+ struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
+ struct gpio_rcar_priv *p = gpio_to_priv(gc);
+
+ pm_runtime_put(&p->pdev->dev);
+}
+
+
+static int gpio_rcar_irq_request_resources(struct irq_data *d)
+{
+ struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
+ struct gpio_rcar_priv *p = gpio_to_priv(gc);
+ int error;
+
+ error = pm_runtime_get_sync(&p->pdev->dev);
+ if (error < 0)
+ return error;
+
+ return 0;
+}
+
+static void gpio_rcar_irq_release_resources(struct irq_data *d)
+{
+ struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
+ struct gpio_rcar_priv *p = gpio_to_priv(gc);
+
+ pm_runtime_put(&p->pdev->dev);
+}
+
static void gpio_rcar_config_general_input_output_mode(struct gpio_chip *chip,
unsigned int gpio,
bool output)
@@ -414,6 +452,10 @@ static int gpio_rcar_probe(struct platform_device *pdev)
irq_chip->irq_mask = gpio_rcar_irq_disable;
irq_chip->irq_unmask = gpio_rcar_irq_enable;
irq_chip->irq_set_type = gpio_rcar_irq_set_type;
+ irq_chip->irq_bus_lock = gpio_rcar_irq_bus_lock;
+ irq_chip->irq_bus_sync_unlock = gpio_rcar_irq_bus_sync_unlock;
+ irq_chip->irq_request_resources = gpio_rcar_irq_request_resources;
+ irq_chip->irq_release_resources = gpio_rcar_irq_release_resources;
irq_chip->flags = IRQCHIP_SKIP_SET_WAKE | IRQCHIP_SET_TYPE_MASKED
| IRQCHIP_MASK_ON_SUSPEND;
diff --git a/drivers/gpu/drm/ast/ast_main.c b/drivers/gpu/drm/ast/ast_main.c
index 0dfefbf929a3..cb6d626dad02 100644
--- a/drivers/gpu/drm/ast/ast_main.c
+++ b/drivers/gpu/drm/ast/ast_main.c
@@ -182,7 +182,7 @@ static int ast_get_dram_info(struct drm_device *dev)
} while (ast_read32(ast, 0x10000) != 0x01);
data = ast_read32(ast, 0x10004);
- if (data & 0x400)
+ if (data & 0x40)
ast->dram_bus_width = 16;
else
ast->dram_bus_width = 32;
diff --git a/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c b/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c
index 21a0d348cedc..53dbd2e85f06 100644
--- a/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c
+++ b/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c
@@ -171,7 +171,12 @@ static u8 *mipi_exec_gpio(struct intel_dsi *intel_dsi, u8 *data)
gpio = *data++;
/* pull up/down */
- action = *data++;
+ action = *data++ & 1;
+
+ if (gpio >= ARRAY_SIZE(gtable)) {
+ DRM_DEBUG_KMS("unknown gpio %u\n", gpio);
+ goto out;
+ }
function = gtable[gpio].function_reg;
pad = gtable[gpio].pad_reg;
@@ -190,6 +195,7 @@ static u8 *mipi_exec_gpio(struct intel_dsi *intel_dsi, u8 *data)
vlv_gpio_nc_write(dev_priv, pad, val);
mutex_unlock(&dev_priv->dpio_lock);
+out:
return data;
}
diff --git a/drivers/gpu/drm/i915/intel_i2c.c b/drivers/gpu/drm/i915/intel_i2c.c
index 81f8ec85a48a..a9cbe5e146fb 100644
--- a/drivers/gpu/drm/i915/intel_i2c.c
+++ b/drivers/gpu/drm/i915/intel_i2c.c
@@ -680,7 +680,7 @@ int intel_setup_gmbus(struct drm_device *dev)
return 0;
err:
- while (--i) {
+ while (i--) {
struct intel_gmbus *bus = &dev_priv->gmbus[i];
i2c_del_adapter(&bus->adapter);
}
diff --git a/drivers/gpu/drm/qxl/qxl_ioctl.c b/drivers/gpu/drm/qxl/qxl_ioctl.c
index 7354a4cda59d..3aefaa058f0c 100644
--- a/drivers/gpu/drm/qxl/qxl_ioctl.c
+++ b/drivers/gpu/drm/qxl/qxl_ioctl.c
@@ -168,7 +168,8 @@ static int qxl_process_single_command(struct qxl_device *qdev,
cmd->command_size))
return -EFAULT;
- reloc_info = kmalloc(sizeof(struct qxl_reloc_info) * cmd->relocs_num, GFP_KERNEL);
+ reloc_info = kmalloc_array(cmd->relocs_num,
+ sizeof(struct qxl_reloc_info), GFP_KERNEL);
if (!reloc_info)
return -ENOMEM;
diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
index f7296ca6510c..ca470fb17aa4 100644
--- a/drivers/gpu/drm/radeon/radeon_device.c
+++ b/drivers/gpu/drm/radeon/radeon_device.c
@@ -1649,7 +1649,6 @@ int radeon_resume_kms(struct drm_device *dev, bool resume, bool fbcon)
}
drm_kms_helper_poll_enable(dev);
- drm_helper_hpd_irq_event(dev);
/* set the power state here in case we are a PX system or headless */
if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled)
diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c
index 98dcccacd678..afd4adaf9f2d 100644
--- a/drivers/gpu/drm/radeon/radeon_pm.c
+++ b/drivers/gpu/drm/radeon/radeon_pm.c
@@ -939,10 +939,6 @@ force:
/* update displays */
radeon_dpm_display_configuration_changed(rdev);
- rdev->pm.dpm.current_active_crtcs = rdev->pm.dpm.new_active_crtcs;
- rdev->pm.dpm.current_active_crtc_count = rdev->pm.dpm.new_active_crtc_count;
- rdev->pm.dpm.single_display = single_display;
-
/* wait for the rings to drain */
for (i = 0; i < RADEON_NUM_RINGS; i++) {
struct radeon_ring *ring = &rdev->ring[i];
@@ -958,6 +954,10 @@ force:
radeon_dpm_post_set_power_state(rdev);
+ rdev->pm.dpm.current_active_crtcs = rdev->pm.dpm.new_active_crtcs;
+ rdev->pm.dpm.current_active_crtc_count = rdev->pm.dpm.new_active_crtc_count;
+ rdev->pm.dpm.single_display = single_display;
+
if (rdev->asic->dpm.force_performance_level) {
if (rdev->pm.dpm.thermal_active) {
enum radeon_dpm_forced_level level = rdev->pm.dpm.forced_level;
diff --git a/drivers/gpu/drm/radeon/radeon_sa.c b/drivers/gpu/drm/radeon/radeon_sa.c
index 15fd57296081..adcf3e2f07da 100644
--- a/drivers/gpu/drm/radeon/radeon_sa.c
+++ b/drivers/gpu/drm/radeon/radeon_sa.c
@@ -349,13 +349,8 @@ int radeon_sa_bo_new(struct radeon_device *rdev,
/* see if we can skip over some allocations */
} while (radeon_sa_bo_next_hole(sa_manager, fences, tries));
- for (i = 0; i < RADEON_NUM_RINGS; ++i)
- radeon_fence_ref(fences[i]);
-
spin_unlock(&sa_manager->wq.lock);
r = radeon_fence_wait_any(rdev, fences, false);
- for (i = 0; i < RADEON_NUM_RINGS; ++i)
- radeon_fence_unref(&fences[i]);
spin_lock(&sa_manager->wq.lock);
/* if we have nothing to wait for block */
if (r == -ENOENT) {
diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
index 7555349e30da..c4675b9729c9 100644
--- a/drivers/gpu/drm/radeon/radeon_ttm.c
+++ b/drivers/gpu/drm/radeon/radeon_ttm.c
@@ -629,7 +629,7 @@ static int radeon_ttm_tt_populate(struct ttm_tt *ttm)
0, PAGE_SIZE,
PCI_DMA_BIDIRECTIONAL);
if (pci_dma_mapping_error(rdev->pdev, gtt->ttm.dma_address[i])) {
- while (--i) {
+ while (i--) {
pci_unmap_page(rdev->pdev, gtt->ttm.dma_address[i],
PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
gtt->ttm.dma_address[i] = 0;
diff --git a/drivers/hwmon/ads1015.c b/drivers/hwmon/ads1015.c
index 126516414c11..44223f5d92d8 100644
--- a/drivers/hwmon/ads1015.c
+++ b/drivers/hwmon/ads1015.c
@@ -126,7 +126,7 @@ static int ads1015_reg_to_mv(struct i2c_client *client, unsigned int channel,
struct ads1015_data *data = i2c_get_clientdata(client);
unsigned int pga = data->channel_data[channel].pga;
int fullscale = fullscale_table[pga];
- const unsigned mask = data->id == ads1115 ? 0x7fff : 0x7ff0;
+ const int mask = data->id == ads1115 ? 0x7fff : 0x7ff0;
return DIV_ROUND_CLOSEST(reg * fullscale, mask);
}
diff --git a/drivers/infiniband/core/sa_query.c b/drivers/infiniband/core/sa_query.c
index 233eaf541f55..3ca38f9ad26a 100644
--- a/drivers/infiniband/core/sa_query.c
+++ b/drivers/infiniband/core/sa_query.c
@@ -542,7 +542,7 @@ int ib_init_ah_from_path(struct ib_device *device, u8 port_num,
force_grh = rdma_port_get_link_layer(device, port_num) == IB_LINK_LAYER_ETHERNET;
- if (rec->hop_limit > 1 || force_grh) {
+ if (rec->hop_limit > 0 || force_grh) {
ah_attr->ah_flags = IB_AH_GRH;
ah_attr->grh.dgid = rec->dgid;
diff --git a/drivers/input/tablet/aiptek.c b/drivers/input/tablet/aiptek.c
index e7f966da6efa..78ca44840d60 100644
--- a/drivers/input/tablet/aiptek.c
+++ b/drivers/input/tablet/aiptek.c
@@ -1819,6 +1819,14 @@ aiptek_probe(struct usb_interface *intf, const struct usb_device_id *id)
input_set_abs_params(inputdev, ABS_TILT_Y, AIPTEK_TILT_MIN, AIPTEK_TILT_MAX, 0, 0);
input_set_abs_params(inputdev, ABS_WHEEL, AIPTEK_WHEEL_MIN, AIPTEK_WHEEL_MAX - 1, 0, 0);
+ /* Verify that a device really has an endpoint */
+ if (intf->altsetting[0].desc.bNumEndpoints < 1) {
+ dev_err(&intf->dev,
+ "interface has %d endpoints, but must have minimum 1\n",
+ intf->altsetting[0].desc.bNumEndpoints);
+ err = -EINVAL;
+ goto fail3;
+ }
endpoint = &intf->altsetting[0].endpoint[0].desc;
/* Go set up our URB, which is called when the tablet receives
@@ -1861,6 +1869,7 @@ aiptek_probe(struct usb_interface *intf, const struct usb_device_id *id)
if (i == ARRAY_SIZE(speeds)) {
dev_info(&intf->dev,
"Aiptek tried all speeds, no sane response\n");
+ err = -EINVAL;
goto fail3;
}
diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c
index 0e08545d7298..69f1b6adb904 100644
--- a/drivers/iommu/amd_iommu_init.c
+++ b/drivers/iommu/amd_iommu_init.c
@@ -226,6 +226,10 @@ static enum iommu_init_state init_state = IOMMU_START_STATE;
static int amd_iommu_enable_interrupts(void);
static int __init iommu_go_to_state(enum iommu_init_state state);
+static int iommu_pc_get_set_reg_val(struct amd_iommu *iommu,
+ u8 bank, u8 cntr, u8 fxn,
+ u64 *value, bool is_write);
+
static inline void update_last_devid(u16 devid)
{
if (devid > amd_iommu_last_bdf)
@@ -1182,8 +1186,8 @@ static void init_iommu_perf_ctr(struct amd_iommu *iommu)
amd_iommu_pc_present = true;
/* Check if the performance counters can be written to */
- if ((0 != amd_iommu_pc_get_set_reg_val(0, 0, 0, 0, &val, true)) ||
- (0 != amd_iommu_pc_get_set_reg_val(0, 0, 0, 0, &val2, false)) ||
+ if ((0 != iommu_pc_get_set_reg_val(iommu, 0, 0, 0, &val, true)) ||
+ (0 != iommu_pc_get_set_reg_val(iommu, 0, 0, 0, &val2, false)) ||
(val != val2)) {
pr_err("AMD-Vi: Unable to write to IOMMU perf counter.\n");
amd_iommu_pc_present = false;
@@ -2316,22 +2320,15 @@ u8 amd_iommu_pc_get_max_counters(u16 devid)
}
EXPORT_SYMBOL(amd_iommu_pc_get_max_counters);
-int amd_iommu_pc_get_set_reg_val(u16 devid, u8 bank, u8 cntr, u8 fxn,
+static int iommu_pc_get_set_reg_val(struct amd_iommu *iommu,
+ u8 bank, u8 cntr, u8 fxn,
u64 *value, bool is_write)
{
- struct amd_iommu *iommu;
u32 offset;
u32 max_offset_lim;
- /* Make sure the IOMMU PC resource is available */
- if (!amd_iommu_pc_present)
- return -ENODEV;
-
- /* Locate the iommu associated with the device ID */
- iommu = amd_iommu_rlookup_table[devid];
-
/* Check for valid iommu and pc register indexing */
- if (WARN_ON((iommu == NULL) || (fxn > 0x28) || (fxn & 7)))
+ if (WARN_ON((fxn > 0x28) || (fxn & 7)))
return -ENODEV;
offset = (u32)(((0x40|bank) << 12) | (cntr << 8) | fxn);
@@ -2355,3 +2352,16 @@ int amd_iommu_pc_get_set_reg_val(u16 devid, u8 bank, u8 cntr, u8 fxn,
return 0;
}
EXPORT_SYMBOL(amd_iommu_pc_get_set_reg_val);
+
+int amd_iommu_pc_get_set_reg_val(u16 devid, u8 bank, u8 cntr, u8 fxn,
+ u64 *value, bool is_write)
+{
+ struct amd_iommu *iommu = amd_iommu_rlookup_table[devid];
+
+ /* Make sure the IOMMU PC resource is available */
+ if (!amd_iommu_pc_present || iommu == NULL)
+ return -ENODEV;
+
+ return iommu_pc_get_set_reg_val(iommu, bank, cntr, fxn,
+ value, is_write);
+}
diff --git a/drivers/iommu/dmar.c b/drivers/iommu/dmar.c
index 55f1515d54c9..04a5e5366ac0 100644
--- a/drivers/iommu/dmar.c
+++ b/drivers/iommu/dmar.c
@@ -1246,7 +1246,7 @@ void dmar_disable_qi(struct intel_iommu *iommu)
raw_spin_lock_irqsave(&iommu->register_lock, flags);
- sts = dmar_readq(iommu->reg + DMAR_GSTS_REG);
+ sts = readl(iommu->reg + DMAR_GSTS_REG);
if (!(sts & DMA_GSTS_QIES))
goto end;
diff --git a/drivers/iommu/intel_irq_remapping.c b/drivers/iommu/intel_irq_remapping.c
index 9b174893f0f5..c21e80461d2d 100644
--- a/drivers/iommu/intel_irq_remapping.c
+++ b/drivers/iommu/intel_irq_remapping.c
@@ -504,7 +504,7 @@ static void iommu_disable_irq_remapping(struct intel_iommu *iommu)
raw_spin_lock_irqsave(&iommu->register_lock, flags);
- sts = dmar_readq(iommu->reg + DMAR_GSTS_REG);
+ sts = readl(iommu->reg + DMAR_GSTS_REG);
if (!(sts & DMA_GSTS_IRES))
goto end;
diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index 72e660cafadd..70db24e41947 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -1950,10 +1950,12 @@ static ssize_t register_bcache(struct kobject *k, struct kobj_attribute *attr,
if (IS_ERR(bdev)) {
if (bdev == ERR_PTR(-EBUSY)) {
bdev = lookup_bdev(strim(path));
+ mutex_lock(&bch_register_lock);
if (!IS_ERR(bdev) && bch_is_open(bdev))
err = "device already registered";
else
err = "device busy";
+ mutex_unlock(&bch_register_lock);
if (attr == &ksysfs_register_quiet)
goto out;
}
diff --git a/drivers/media/i2c/adv7604.c b/drivers/media/i2c/adv7604.c
index 67403b94f0a2..f70cdea2fcc1 100644
--- a/drivers/media/i2c/adv7604.c
+++ b/drivers/media/i2c/adv7604.c
@@ -1981,10 +1981,9 @@ static int adv7604_isr(struct v4l2_subdev *sd, u32 status, bool *handled)
}
/* tx 5v detect */
- tx_5v = io_read(sd, 0x70) & info->cable_det_mask;
+ tx_5v = irq_reg_0x70 & info->cable_det_mask;
if (tx_5v) {
v4l2_dbg(1, debug, sd, "%s: tx_5v: 0x%x\n", __func__, tx_5v);
- io_write(sd, 0x71, tx_5v);
adv7604_s_detect_tx_5v_ctrl(sd);
if (handled)
*handled = true;
diff --git a/drivers/mtd/ubi/upd.c b/drivers/mtd/ubi/upd.c
index 2a1b6e037e1a..0134ba32a057 100644
--- a/drivers/mtd/ubi/upd.c
+++ b/drivers/mtd/ubi/upd.c
@@ -193,7 +193,7 @@ int ubi_start_leb_change(struct ubi_device *ubi, struct ubi_volume *vol,
vol->changing_leb = 1;
vol->ch_lnum = req->lnum;
- vol->upd_buf = vmalloc(req->bytes);
+ vol->upd_buf = vmalloc(ALIGN((int)req->bytes, ubi->min_io_size));
if (!vol->upd_buf)
return -ENOMEM;
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 8b555aca45eb..41503ce1e3b7 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -210,6 +210,8 @@ static int lacp_fast;
static int bond_init(struct net_device *bond_dev);
static void bond_uninit(struct net_device *bond_dev);
+static bool bond_time_in_interval(struct bonding *bond, unsigned long last_act,
+ int mod);
/*---------------------------- General routines -----------------------------*/
@@ -2352,7 +2354,7 @@ int bond_arp_rcv(const struct sk_buff *skb, struct bonding *bond,
struct slave *slave)
{
struct arphdr *arp = (struct arphdr *)skb->data;
- struct slave *curr_active_slave;
+ struct slave *curr_active_slave, *curr_arp_slave;
unsigned char *arp_ptr;
__be32 sip, tip;
int alen, is_arp = skb->protocol == __cpu_to_be16(ETH_P_ARP);
@@ -2399,27 +2401,41 @@ int bond_arp_rcv(const struct sk_buff *skb, struct bonding *bond,
&sip, &tip);
curr_active_slave = rcu_dereference(bond->curr_active_slave);
+ curr_arp_slave = rcu_dereference(bond->current_arp_slave);
- /*
- * Backup slaves won't see the ARP reply, but do come through
- * here for each ARP probe (so we swap the sip/tip to validate
- * the probe). In a "redundant switch, common router" type of
- * configuration, the ARP probe will (hopefully) travel from
- * the active, through one switch, the router, then the other
- * switch before reaching the backup.
+ /* We 'trust' the received ARP enough to validate it if:
+ *
+ * (a) the slave receiving the ARP is active (which includes the
+ * current ARP slave, if any), or
+ *
+ * (b) the receiving slave isn't active, but there is a currently
+ * active slave and it received valid arp reply(s) after it became
+ * the currently active slave, or
*
- * We 'trust' the arp requests if there is an active slave and
- * it received valid arp reply(s) after it became active. This
- * is done to avoid endless looping when we can't reach the
+ * (c) there is an ARP slave that sent an ARP during the prior ARP
+ * interval, and we receive an ARP reply on any slave. We accept
+ * these because switch FDB update delays may deliver the ARP
+ * reply to a slave other than the sender of the ARP request.
+ *
+ * Note: for (b), backup slaves are receiving the broadcast ARP
+ * request, not a reply. This request passes from the sending
+ * slave through the L2 switch(es) to the receiving slave. Since
+ * this is checking the request, sip/tip are swapped for
+ * validation.
+ *
+ * This is done to avoid endless looping when we can't reach the
* arp_ip_target and fool ourselves with our own arp requests.
*/
-
if (bond_is_active_slave(slave))
bond_validate_arp(bond, slave, sip, tip);
else if (curr_active_slave &&
time_after(slave_last_rx(bond, curr_active_slave),
curr_active_slave->last_link_up))
bond_validate_arp(bond, slave, tip, sip);
+ else if (curr_arp_slave && (arp->ar_op == htons(ARPOP_REPLY)) &&
+ bond_time_in_interval(bond,
+ dev_trans_start(curr_arp_slave->dev), 1))
+ bond_validate_arp(bond, slave, sip, tip);
out_unlock:
if (arp != (struct arphdr *)skb->data)
diff --git a/drivers/net/can/usb/ems_usb.c b/drivers/net/can/usb/ems_usb.c
index 00f2534dde73..91a4312e5c34 100644
--- a/drivers/net/can/usb/ems_usb.c
+++ b/drivers/net/can/usb/ems_usb.c
@@ -117,6 +117,9 @@ MODULE_LICENSE("GPL v2");
*/
#define EMS_USB_ARM7_CLOCK 8000000
+#define CPC_TX_QUEUE_TRIGGER_LOW 25
+#define CPC_TX_QUEUE_TRIGGER_HIGH 35
+
/*
* CAN-Message representation in a CPC_MSG. Message object type is
* CPC_MSG_TYPE_CAN_FRAME or CPC_MSG_TYPE_RTR_FRAME or
@@ -278,6 +281,11 @@ static void ems_usb_read_interrupt_callback(struct urb *urb)
switch (urb->status) {
case 0:
dev->free_slots = dev->intr_in_buffer[1];
+ if(dev->free_slots > CPC_TX_QUEUE_TRIGGER_HIGH){
+ if (netif_queue_stopped(netdev)){
+ netif_wake_queue(netdev);
+ }
+ }
break;
case -ECONNRESET: /* unlink */
@@ -529,8 +537,6 @@ static void ems_usb_write_bulk_callback(struct urb *urb)
/* Release context */
context->echo_index = MAX_TX_URBS;
- if (netif_queue_stopped(netdev))
- netif_wake_queue(netdev);
}
/*
@@ -590,7 +596,7 @@ static int ems_usb_start(struct ems_usb *dev)
int err, i;
dev->intr_in_buffer[0] = 0;
- dev->free_slots = 15; /* initial size */
+ dev->free_slots = 50; /* initial size */
for (i = 0; i < MAX_RX_URBS; i++) {
struct urb *urb = NULL;
@@ -841,7 +847,7 @@ static netdev_tx_t ems_usb_start_xmit(struct sk_buff *skb, struct net_device *ne
/* Slow down tx path */
if (atomic_read(&dev->active_tx_urbs) >= MAX_TX_URBS ||
- dev->free_slots < 5) {
+ dev->free_slots < CPC_TX_QUEUE_TRIGGER_LOW) {
netif_stop_queue(netdev);
}
}
diff --git a/drivers/net/can/usb/gs_usb.c b/drivers/net/can/usb/gs_usb.c
index 04b0f84612f0..047b63caa3b7 100644
--- a/drivers/net/can/usb/gs_usb.c
+++ b/drivers/net/can/usb/gs_usb.c
@@ -825,9 +825,8 @@ static struct gs_can *gs_make_candev(unsigned int channel, struct usb_interface
static void gs_destroy_candev(struct gs_can *dev)
{
unregister_candev(dev->netdev);
- free_candev(dev->netdev);
usb_kill_anchored_urbs(&dev->tx_submitted);
- kfree(dev);
+ free_candev(dev->netdev);
}
static int gs_usb_probe(struct usb_interface *intf, const struct usb_device_id *id)
@@ -910,12 +909,15 @@ static int gs_usb_probe(struct usb_interface *intf, const struct usb_device_id *
for (i = 0; i < icount; i++) {
dev->canch[i] = gs_make_candev(i, intf);
if (IS_ERR_OR_NULL(dev->canch[i])) {
+ /* save error code to return later */
+ rc = PTR_ERR(dev->canch[i]);
+
/* on failure destroy previously created candevs */
icount = i;
- for (i = 0; i < icount; i++) {
+ for (i = 0; i < icount; i++)
gs_destroy_candev(dev->canch[i]);
- dev->canch[i] = NULL;
- }
+
+ usb_kill_anchored_urbs(&dev->rx_submitted);
kfree(dev);
return rc;
}
@@ -936,16 +938,12 @@ static void gs_usb_disconnect(struct usb_interface *intf)
return;
}
- for (i = 0; i < GS_MAX_INTF; i++) {
- struct gs_can *can = dev->canch[i];
-
- if (!can)
- continue;
-
- gs_destroy_candev(can);
- }
+ for (i = 0; i < GS_MAX_INTF; i++)
+ if (dev->canch[i])
+ gs_destroy_candev(dev->canch[i]);
usb_kill_anchored_urbs(&dev->rx_submitted);
+ kfree(dev);
}
static const struct usb_device_id gs_usb_table[] = {
diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index 24d42c6d0c66..c13932e671fb 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -7829,6 +7829,14 @@ static int tigon3_dma_hwbug_workaround(struct tg3_napi *tnapi,
return ret;
}
+static bool tg3_tso_bug_gso_check(struct tg3_napi *tnapi, struct sk_buff *skb)
+{
+ /* Check if we will never have enough descriptors,
+ * as gso_segs can be more than current ring size
+ */
+ return skb_shinfo(skb)->gso_segs < tnapi->tx_pending / 3;
+}
+
static netdev_tx_t tg3_start_xmit(struct sk_buff *, struct net_device *);
/* Use GSO to workaround all TSO packets that meet HW bug conditions
@@ -7932,14 +7940,19 @@ static netdev_tx_t tg3_start_xmit(struct sk_buff *skb, struct net_device *dev)
* vlan encapsulated.
*/
if (skb->protocol == htons(ETH_P_8021Q) ||
- skb->protocol == htons(ETH_P_8021AD))
- return tg3_tso_bug(tp, tnapi, txq, skb);
+ skb->protocol == htons(ETH_P_8021AD)) {
+ if (tg3_tso_bug_gso_check(tnapi, skb))
+ return tg3_tso_bug(tp, tnapi, txq, skb);
+ goto drop;
+ }
if (!skb_is_gso_v6(skb)) {
if (unlikely((ETH_HLEN + hdr_len) > 80) &&
- tg3_flag(tp, TSO_BUG))
- return tg3_tso_bug(tp, tnapi, txq, skb);
-
+ tg3_flag(tp, TSO_BUG)) {
+ if (tg3_tso_bug_gso_check(tnapi, skb))
+ return tg3_tso_bug(tp, tnapi, txq, skb);
+ goto drop;
+ }
ip_csum = iph->check;
ip_tot_len = iph->tot_len;
iph->check = 0;
@@ -8071,7 +8084,7 @@ static netdev_tx_t tg3_start_xmit(struct sk_buff *skb, struct net_device *dev)
if (would_hit_hwbug) {
tg3_tx_skb_unmap(tnapi, tnapi->tx_prod, i);
- if (mss) {
+ if (mss && tg3_tso_bug_gso_check(tnapi, skb)) {
/* If it's a TSO packet, do GSO instead of
* allocating and copying to a large linear SKB
*/
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_clock.c b/drivers/net/ethernet/mellanox/mlx4/en_clock.c
index 74ed9f8fd267..74e783ba68ea 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_clock.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_clock.c
@@ -285,6 +285,24 @@ static const struct ptp_clock_info mlx4_en_ptp_clock_info = {
.enable = mlx4_en_phc_enable,
};
+#define MLX4_EN_WRAP_AROUND_SEC 10ULL
+
+/* This function calculates the max shift that enables the user range
+ * of MLX4_EN_WRAP_AROUND_SEC values in the cycles register.
+ */
+static u32 freq_to_shift(u16 freq)
+{
+ u32 freq_khz = freq * 1000;
+ u64 max_val_cycles = freq_khz * 1000 * MLX4_EN_WRAP_AROUND_SEC;
+ u64 max_val_cycles_rounded = is_power_of_2(max_val_cycles + 1) ?
+ max_val_cycles : roundup_pow_of_two(max_val_cycles) - 1;
+ /* calculate max possible multiplier in order to fit in 64bit */
+ u64 max_mul = div_u64(0xffffffffffffffffULL, max_val_cycles_rounded);
+
+ /* This comes from the reverse of clocksource_khz2mult */
+ return ilog2(div_u64(max_mul * freq_khz, 1000000));
+}
+
void mlx4_en_init_timestamp(struct mlx4_en_dev *mdev)
{
struct mlx4_dev *dev = mdev->dev;
@@ -303,12 +321,7 @@ void mlx4_en_init_timestamp(struct mlx4_en_dev *mdev)
memset(&mdev->cycles, 0, sizeof(mdev->cycles));
mdev->cycles.read = mlx4_en_read_clock;
mdev->cycles.mask = CLOCKSOURCE_MASK(48);
- /* Using shift to make calculation more accurate. Since current HW
- * clock frequency is 427 MHz, and cycles are given using a 48 bits
- * register, the biggest shift when calculating using u64, is 14
- * (max_cycles * multiplier < 2^64)
- */
- mdev->cycles.shift = 14;
+ mdev->cycles.shift = freq_to_shift(dev->caps.hca_core_clock);
mdev->cycles.mult =
clocksource_khz2mult(1000 * dev->caps.hca_core_clock, mdev->cycles.shift);
mdev->nominal_c_mult = mdev->cycles.mult;
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
index bf3878823c96..50b1f909ce0d 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
@@ -2244,7 +2244,7 @@ static int mlx4_en_set_vf_mac(struct net_device *dev, int queue, u8 *mac)
struct mlx4_en_dev *mdev = en_priv->mdev;
u64 mac_u64 = mlx4_mac_to_u64(mac);
- if (!is_valid_ether_addr(mac))
+ if (is_multicast_ether_addr(mac))
return -EINVAL;
return mlx4_set_vf_mac(mdev->dev, en_priv->port, queue, mac_u64);
@@ -2324,8 +2324,6 @@ out:
/* set offloads */
priv->dev->hw_enc_features |= NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
NETIF_F_TSO | NETIF_F_GSO_UDP_TUNNEL;
- priv->dev->hw_features |= NETIF_F_GSO_UDP_TUNNEL;
- priv->dev->features |= NETIF_F_GSO_UDP_TUNNEL;
}
static void mlx4_en_del_vxlan_offloads(struct work_struct *work)
@@ -2336,8 +2334,6 @@ static void mlx4_en_del_vxlan_offloads(struct work_struct *work)
/* unset offloads */
priv->dev->hw_enc_features &= ~(NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
NETIF_F_TSO | NETIF_F_GSO_UDP_TUNNEL);
- priv->dev->hw_features &= ~NETIF_F_GSO_UDP_TUNNEL;
- priv->dev->features &= ~NETIF_F_GSO_UDP_TUNNEL;
ret = mlx4_SET_PORT_VXLAN(priv->mdev->dev, priv->port,
VXLAN_STEER_BY_OUTER_MAC, 0);
@@ -2618,6 +2614,11 @@ int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port,
if (mdev->dev->caps.steering_mode != MLX4_STEERING_MODE_A0)
dev->priv_flags |= IFF_UNICAST_FLT;
+ if (mdev->dev->caps.tunnel_offload_mode == MLX4_TUNNEL_OFFLOAD_MODE_VXLAN) {
+ dev->hw_features |= NETIF_F_GSO_UDP_TUNNEL;
+ dev->features |= NETIF_F_GSO_UDP_TUNNEL;
+ }
+
mdev->pndev[port] = dev;
netif_carrier_off(dev);
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_port.c b/drivers/net/ethernet/mellanox/mlx4/en_port.c
index c2cfb05e7290..40d6c3c6b3a0 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_port.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_port.c
@@ -177,11 +177,11 @@ int mlx4_en_DUMP_ETH_STATS(struct mlx4_en_dev *mdev, u8 port, u8 reset)
be64_to_cpu(mlx4_en_stats->MCAST_novlan);
stats->collisions = 0;
stats->rx_length_errors = be32_to_cpu(mlx4_en_stats->RdropLength);
- stats->rx_over_errors = be32_to_cpu(mlx4_en_stats->RdropOvflw);
+ stats->rx_over_errors = 0;
stats->rx_crc_errors = be32_to_cpu(mlx4_en_stats->RCRC);
stats->rx_frame_errors = 0;
stats->rx_fifo_errors = be32_to_cpu(mlx4_en_stats->RdropOvflw);
- stats->rx_missed_errors = be32_to_cpu(mlx4_en_stats->RdropOvflw);
+ stats->rx_missed_errors = 0;
stats->tx_aborted_errors = 0;
stats->tx_carrier_errors = 0;
stats->tx_fifo_errors = 0;
diff --git a/drivers/net/ethernet/moxa/moxart_ether.c b/drivers/net/ethernet/moxa/moxart_ether.c
index 5020fd47825d..d627a78912e3 100644
--- a/drivers/net/ethernet/moxa/moxart_ether.c
+++ b/drivers/net/ethernet/moxa/moxart_ether.c
@@ -456,9 +456,9 @@ static int moxart_mac_probe(struct platform_device *pdev)
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
ndev->base_addr = res->start;
priv->base = devm_ioremap_resource(p_dev, res);
- ret = IS_ERR(priv->base);
- if (ret) {
+ if (IS_ERR(priv->base)) {
dev_err(p_dev, "devm_ioremap_resource failed\n");
+ ret = PTR_ERR(priv->base);
goto init_fail;
}
diff --git a/drivers/net/phy/bcm7xxx.c b/drivers/net/phy/bcm7xxx.c
index 526b94cea569..51678e393793 100644
--- a/drivers/net/phy/bcm7xxx.c
+++ b/drivers/net/phy/bcm7xxx.c
@@ -204,7 +204,7 @@ static int bcm7xxx_config_init(struct phy_device *phydev)
phy_write(phydev, MII_BCM7XXX_100TX_FALSE_CAR, 0x7555);
/* reset shadow mode 2 */
- ret = phy_set_clr_bits(phydev, MII_BCM7XXX_TEST, MII_BCM7XXX_SHD_MODE_2, 0);
+ ret = phy_set_clr_bits(phydev, MII_BCM7XXX_TEST, 0, MII_BCM7XXX_SHD_MODE_2);
if (ret < 0)
return ret;
diff --git a/drivers/net/phy/dp83640.c b/drivers/net/phy/dp83640.c
index a6fd0d8f4128..4c8eb5721d4d 100644
--- a/drivers/net/phy/dp83640.c
+++ b/drivers/net/phy/dp83640.c
@@ -759,6 +759,11 @@ static void decode_rxts(struct dp83640_private *dp83640,
{
struct rxts *rxts;
unsigned long flags;
+ u8 overflow;
+
+ overflow = (phy_rxts->ns_hi >> 14) & 0x3;
+ if (overflow)
+ pr_debug("rx timestamp queue overflow, count %d\n", overflow);
spin_lock_irqsave(&dp83640->rx_lock, flags);
@@ -782,6 +787,7 @@ static void decode_txts(struct dp83640_private *dp83640,
struct skb_shared_hwtstamps shhwtstamps;
struct sk_buff *skb;
u64 ns;
+ u8 overflow;
/* We must already have the skb that triggered this. */
@@ -791,6 +797,17 @@ static void decode_txts(struct dp83640_private *dp83640,
pr_debug("have timestamp but tx_queue empty\n");
return;
}
+
+ overflow = (phy_txts->ns_hi >> 14) & 0x3;
+ if (overflow) {
+ pr_debug("tx timestamp queue overflow, count %d\n", overflow);
+ while (skb) {
+ skb_complete_tx_timestamp(skb, NULL);
+ skb = skb_dequeue(&dp83640->tx_queue);
+ }
+ return;
+ }
+
ns = phy2txts(phy_txts);
memset(&shhwtstamps, 0, sizeof(shhwtstamps));
shhwtstamps.hwtstamp = ns_to_ktime(ns);
diff --git a/drivers/net/ppp/pppoe.c b/drivers/net/ppp/pppoe.c
index 5aa563136373..afac3cdac44b 100644
--- a/drivers/net/ppp/pppoe.c
+++ b/drivers/net/ppp/pppoe.c
@@ -392,6 +392,8 @@ static int pppoe_rcv_core(struct sock *sk, struct sk_buff *skb)
if (!__pppoe_xmit(sk_pppox(relay_po), skb))
goto abort_put;
+
+ sock_put(sk_pppox(relay_po));
} else {
if (sock_queue_rcv_skb(sk, skb))
goto abort_kfree;
diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c
index 8067b8fbb0ee..b7b3ed5f666c 100644
--- a/drivers/net/usb/cdc_ncm.c
+++ b/drivers/net/usb/cdc_ncm.c
@@ -948,23 +948,11 @@ EXPORT_SYMBOL_GPL(cdc_ncm_select_altsetting);
static int cdc_ncm_bind(struct usbnet *dev, struct usb_interface *intf)
{
- int ret;
-
/* MBIM backwards compatible function? */
if (cdc_ncm_select_altsetting(intf) != CDC_NCM_COMM_ALTSETTING_NCM)
return -ENODEV;
- /* The NCM data altsetting is fixed */
- ret = cdc_ncm_bind_common(dev, intf, CDC_NCM_DATA_ALTSETTING_NCM);
-
- /*
- * We should get an event when network connection is "connected" or
- * "disconnected". Set network connection in "disconnected" state
- * (carrier is OFF) during attach, so the IP network stack does not
- * start IPv6 negotiation and more.
- */
- usbnet_link_change(dev, 0, 0);
- return ret;
+ return cdc_ncm_bind_common(dev, intf, CDC_NCM_DATA_ALTSETTING_NCM);
}
static void cdc_ncm_align_tail(struct sk_buff *skb, size_t modulus, size_t remainder, size_t max)
@@ -1506,7 +1494,8 @@ static void cdc_ncm_status(struct usbnet *dev, struct urb *urb)
static const struct driver_info cdc_ncm_info = {
.description = "CDC NCM",
- .flags = FLAG_POINTTOPOINT | FLAG_NO_SETINT | FLAG_MULTI_PACKET,
+ .flags = FLAG_POINTTOPOINT | FLAG_NO_SETINT | FLAG_MULTI_PACKET
+ | FLAG_LINK_INTR,
.bind = cdc_ncm_bind,
.unbind = cdc_ncm_unbind,
.manage_power = usbnet_manage_power,
@@ -1519,7 +1508,7 @@ static const struct driver_info cdc_ncm_info = {
static const struct driver_info wwan_info = {
.description = "Mobile Broadband Network Device",
.flags = FLAG_POINTTOPOINT | FLAG_NO_SETINT | FLAG_MULTI_PACKET
- | FLAG_WWAN,
+ | FLAG_LINK_INTR | FLAG_WWAN,
.bind = cdc_ncm_bind,
.unbind = cdc_ncm_unbind,
.manage_power = usbnet_manage_power,
@@ -1532,7 +1521,7 @@ static const struct driver_info wwan_info = {
static const struct driver_info wwan_noarp_info = {
.description = "Mobile Broadband Network Device (NO ARP)",
.flags = FLAG_POINTTOPOINT | FLAG_NO_SETINT | FLAG_MULTI_PACKET
- | FLAG_WWAN | FLAG_NOARP,
+ | FLAG_LINK_INTR | FLAG_WWAN | FLAG_NOARP,
.bind = cdc_ncm_bind,
.unbind = cdc_ncm_unbind,
.manage_power = usbnet_manage_power,
diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c
index c745fd79eb9e..ab0a4f32a46c 100644
--- a/drivers/net/usb/qmi_wwan.c
+++ b/drivers/net/usb/qmi_wwan.c
@@ -542,6 +542,7 @@ static const struct usb_device_id products[] = {
/* 3. Combined interface devices matching on interface number */
{QMI_FIXED_INTF(0x0408, 0xea42, 4)}, /* Yota / Megafon M100-1 */
+ {QMI_FIXED_INTF(0x05c6, 0x6001, 3)}, /* 4G LTE usb-modem U901 */
{QMI_FIXED_INTF(0x05c6, 0x7000, 0)},
{QMI_FIXED_INTF(0x05c6, 0x7001, 1)},
{QMI_FIXED_INTF(0x05c6, 0x7002, 1)},
diff --git a/drivers/pci/xen-pcifront.c b/drivers/pci/xen-pcifront.c
index 53df39a22c8a..626360b07701 100644
--- a/drivers/pci/xen-pcifront.c
+++ b/drivers/pci/xen-pcifront.c
@@ -52,7 +52,7 @@ struct pcifront_device {
};
struct pcifront_sd {
- int domain;
+ struct pci_sysdata sd;
struct pcifront_device *pdev;
};
@@ -66,7 +66,9 @@ static inline void pcifront_init_sd(struct pcifront_sd *sd,
unsigned int domain, unsigned int bus,
struct pcifront_device *pdev)
{
- sd->domain = domain;
+ /* Because we do not expose that information via XenBus. */
+ sd->sd.node = first_online_node;
+ sd->sd.domain = domain;
sd->pdev = pdev;
}
@@ -464,8 +466,8 @@ static int pcifront_scan_root(struct pcifront_device *pdev,
dev_info(&pdev->xdev->dev, "Creating PCI Frontend Bus %04x:%02x\n",
domain, bus);
- bus_entry = kmalloc(sizeof(*bus_entry), GFP_KERNEL);
- sd = kmalloc(sizeof(*sd), GFP_KERNEL);
+ bus_entry = kzalloc(sizeof(*bus_entry), GFP_KERNEL);
+ sd = kzalloc(sizeof(*sd), GFP_KERNEL);
if (!bus_entry || !sd) {
err = -ENOMEM;
goto err_out;
diff --git a/drivers/s390/block/dasd_alias.c b/drivers/s390/block/dasd_alias.c
index a2597e683e79..6a64e86e8ccd 100644
--- a/drivers/s390/block/dasd_alias.c
+++ b/drivers/s390/block/dasd_alias.c
@@ -264,8 +264,10 @@ void dasd_alias_disconnect_device_from_lcu(struct dasd_device *device)
spin_unlock_irqrestore(&lcu->lock, flags);
cancel_work_sync(&lcu->suc_data.worker);
spin_lock_irqsave(&lcu->lock, flags);
- if (device == lcu->suc_data.device)
+ if (device == lcu->suc_data.device) {
+ dasd_put_device(device);
lcu->suc_data.device = NULL;
+ }
}
was_pending = 0;
if (device == lcu->ruac_data.device) {
@@ -273,8 +275,10 @@ void dasd_alias_disconnect_device_from_lcu(struct dasd_device *device)
was_pending = 1;
cancel_delayed_work_sync(&lcu->ruac_data.dwork);
spin_lock_irqsave(&lcu->lock, flags);
- if (device == lcu->ruac_data.device)
+ if (device == lcu->ruac_data.device) {
+ dasd_put_device(device);
lcu->ruac_data.device = NULL;
+ }
}
private->lcu = NULL;
spin_unlock_irqrestore(&lcu->lock, flags);
@@ -549,8 +553,10 @@ static void lcu_update_work(struct work_struct *work)
if ((rc && (rc != -EOPNOTSUPP)) || (lcu->flags & NEED_UAC_UPDATE)) {
DBF_DEV_EVENT(DBF_WARNING, device, "could not update"
" alias data in lcu (rc = %d), retry later", rc);
- schedule_delayed_work(&lcu->ruac_data.dwork, 30*HZ);
+ if (!schedule_delayed_work(&lcu->ruac_data.dwork, 30*HZ))
+ dasd_put_device(device);
} else {
+ dasd_put_device(device);
lcu->ruac_data.device = NULL;
lcu->flags &= ~UPDATE_PENDING;
}
@@ -593,8 +599,10 @@ static int _schedule_lcu_update(struct alias_lcu *lcu,
*/
if (!usedev)
return -EINVAL;
+ dasd_get_device(usedev);
lcu->ruac_data.device = usedev;
- schedule_delayed_work(&lcu->ruac_data.dwork, 0);
+ if (!schedule_delayed_work(&lcu->ruac_data.dwork, 0))
+ dasd_put_device(usedev);
return 0;
}
@@ -722,7 +730,7 @@ static int reset_summary_unit_check(struct alias_lcu *lcu,
ASCEBC((char *) &cqr->magic, 4);
ccw = cqr->cpaddr;
ccw->cmd_code = DASD_ECKD_CCW_RSCK;
- ccw->flags = 0 ;
+ ccw->flags = CCW_FLAG_SLI;
ccw->count = 16;
ccw->cda = (__u32)(addr_t) cqr->data;
((char *)cqr->data)[0] = reason;
@@ -926,6 +934,7 @@ static void summary_unit_check_handling_work(struct work_struct *work)
/* 3. read new alias configuration */
_schedule_lcu_update(lcu, device);
lcu->suc_data.device = NULL;
+ dasd_put_device(device);
spin_unlock_irqrestore(&lcu->lock, flags);
}
@@ -985,6 +994,8 @@ void dasd_alias_handle_summary_unit_check(struct dasd_device *device,
}
lcu->suc_data.reason = reason;
lcu->suc_data.device = device;
+ dasd_get_device(device);
spin_unlock(&lcu->lock);
- schedule_work(&lcu->suc_data.worker);
+ if (!schedule_work(&lcu->suc_data.worker))
+ dasd_put_device(device);
};
diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c
index 7e78015d6ab7..6c26b9743c52 100644
--- a/drivers/scsi/scsi_sysfs.c
+++ b/drivers/scsi/scsi_sysfs.c
@@ -1148,16 +1148,18 @@ static void __scsi_remove_target(struct scsi_target *starget)
void scsi_remove_target(struct device *dev)
{
struct Scsi_Host *shost = dev_to_shost(dev->parent);
- struct scsi_target *starget;
+ struct scsi_target *starget, *last_target = NULL;
unsigned long flags;
restart:
spin_lock_irqsave(shost->host_lock, flags);
list_for_each_entry(starget, &shost->__targets, siblings) {
- if (starget->state == STARGET_DEL)
+ if (starget->state == STARGET_DEL ||
+ starget == last_target)
continue;
if (starget->dev.parent == dev || &starget->dev == dev) {
kref_get(&starget->reap_ref);
+ last_target = starget;
spin_unlock_irqrestore(shost->host_lock, flags);
__scsi_remove_target(starget);
scsi_target_reap(starget);
diff --git a/drivers/staging/android/binder.c b/drivers/staging/android/binder.c
index a741da77828a..3b79624703a7 100644
--- a/drivers/staging/android/binder.c
+++ b/drivers/staging/android/binder.c
@@ -2049,7 +2049,7 @@ static int binder_thread_write(struct binder_proc *proc,
if (get_user(cookie, (binder_uintptr_t __user *)ptr))
return -EFAULT;
- ptr += sizeof(void *);
+ ptr += sizeof(cookie);
list_for_each_entry(w, &proc->delivered_death, entry) {
struct binder_ref_death *tmp_death = container_of(w, struct binder_ref_death, work);
diff --git a/drivers/target/target_core_tmr.c b/drivers/target/target_core_tmr.c
index f7cd95e8111a..033a59cd6c70 100644
--- a/drivers/target/target_core_tmr.c
+++ b/drivers/target/target_core_tmr.c
@@ -76,23 +76,24 @@ void core_tmr_release_req(
}
spin_lock_irqsave(&dev->se_tmr_lock, flags);
- list_del(&tmr->tmr_list);
+ list_del_init(&tmr->tmr_list);
spin_unlock_irqrestore(&dev->se_tmr_lock, flags);
kfree(tmr);
}
-static void core_tmr_handle_tas_abort(
- struct se_node_acl *tmr_nacl,
- struct se_cmd *cmd,
- int tas)
+static void core_tmr_handle_tas_abort(struct se_cmd *cmd, int tas)
{
- bool remove = true;
+ unsigned long flags;
+ bool remove = true, send_tas;
/*
* TASK ABORTED status (TAS) bit support
- */
- if ((tmr_nacl &&
- (tmr_nacl != cmd->se_sess->se_node_acl)) && tas) {
+ */
+ spin_lock_irqsave(&cmd->t_state_lock, flags);
+ send_tas = (cmd->transport_state & CMD_T_TAS);
+ spin_unlock_irqrestore(&cmd->t_state_lock, flags);
+
+ if (send_tas) {
remove = false;
transport_send_task_abort(cmd);
}
@@ -115,6 +116,47 @@ static int target_check_cdb_and_preempt(struct list_head *list,
return 1;
}
+static bool __target_check_io_state(struct se_cmd *se_cmd,
+ struct se_session *tmr_sess, int tas)
+{
+ struct se_session *sess = se_cmd->se_sess;
+
+ assert_spin_locked(&sess->sess_cmd_lock);
+ WARN_ON_ONCE(!irqs_disabled());
+ /*
+ * If command already reached CMD_T_COMPLETE state within
+ * target_complete_cmd() or CMD_T_FABRIC_STOP due to shutdown,
+ * this se_cmd has been passed to fabric driver and will
+ * not be aborted.
+ *
+ * Otherwise, obtain a local se_cmd->cmd_kref now for TMR
+ * ABORT_TASK + LUN_RESET for CMD_T_ABORTED processing as
+ * long as se_cmd->cmd_kref is still active unless zero.
+ */
+ spin_lock(&se_cmd->t_state_lock);
+ if (se_cmd->transport_state & (CMD_T_COMPLETE | CMD_T_FABRIC_STOP)) {
+ pr_debug("Attempted to abort io tag: %u already complete or"
+ " fabric stop, skipping\n",
+ se_cmd->se_tfo->get_task_tag(se_cmd));
+ spin_unlock(&se_cmd->t_state_lock);
+ return false;
+ }
+ if (sess->sess_tearing_down || se_cmd->cmd_wait_set) {
+ pr_debug("Attempted to abort io tag: %u already shutdown,"
+ " skipping\n", se_cmd->se_tfo->get_task_tag(se_cmd));
+ spin_unlock(&se_cmd->t_state_lock);
+ return false;
+ }
+ se_cmd->transport_state |= CMD_T_ABORTED;
+
+ if ((tmr_sess != se_cmd->se_sess) && tas)
+ se_cmd->transport_state |= CMD_T_TAS;
+
+ spin_unlock(&se_cmd->t_state_lock);
+
+ return kref_get_unless_zero(&se_cmd->cmd_kref);
+}
+
void core_tmr_abort_task(
struct se_device *dev,
struct se_tmr_req *tmr,
@@ -142,25 +184,19 @@ void core_tmr_abort_task(
printk("ABORT_TASK: Found referenced %s task_tag: %u\n",
se_cmd->se_tfo->get_fabric_name(), ref_tag);
- spin_lock(&se_cmd->t_state_lock);
- if (se_cmd->transport_state & CMD_T_COMPLETE) {
- printk("ABORT_TASK: ref_tag: %u already complete, skipping\n", ref_tag);
- spin_unlock(&se_cmd->t_state_lock);
+ if (!__target_check_io_state(se_cmd, se_sess, 0)) {
spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags);
goto out;
}
- se_cmd->transport_state |= CMD_T_ABORTED;
- spin_unlock(&se_cmd->t_state_lock);
list_del_init(&se_cmd->se_cmd_list);
- kref_get(&se_cmd->cmd_kref);
spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags);
cancel_work_sync(&se_cmd->work);
transport_wait_for_tasks(se_cmd);
- target_put_sess_cmd(se_sess, se_cmd);
transport_cmd_finish_abort(se_cmd, true);
+ target_put_sess_cmd(se_sess, se_cmd);
printk("ABORT_TASK: Sending TMR_FUNCTION_COMPLETE for"
" ref_tag: %d\n", ref_tag);
@@ -181,9 +217,11 @@ static void core_tmr_drain_tmr_list(
struct list_head *preempt_and_abort_list)
{
LIST_HEAD(drain_tmr_list);
+ struct se_session *sess;
struct se_tmr_req *tmr_p, *tmr_pp;
struct se_cmd *cmd;
unsigned long flags;
+ bool rc;
/*
* Release all pending and outgoing TMRs aside from the received
* LUN_RESET tmr..
@@ -209,17 +247,39 @@ static void core_tmr_drain_tmr_list(
if (target_check_cdb_and_preempt(preempt_and_abort_list, cmd))
continue;
+ sess = cmd->se_sess;
+ if (WARN_ON_ONCE(!sess))
+ continue;
+
+ spin_lock(&sess->sess_cmd_lock);
spin_lock(&cmd->t_state_lock);
- if (!(cmd->transport_state & CMD_T_ACTIVE)) {
+ if (!(cmd->transport_state & CMD_T_ACTIVE) ||
+ (cmd->transport_state & CMD_T_FABRIC_STOP)) {
spin_unlock(&cmd->t_state_lock);
+ spin_unlock(&sess->sess_cmd_lock);
continue;
}
if (cmd->t_state == TRANSPORT_ISTATE_PROCESSING) {
spin_unlock(&cmd->t_state_lock);
+ spin_unlock(&sess->sess_cmd_lock);
continue;
}
+ if (sess->sess_tearing_down || cmd->cmd_wait_set) {
+ spin_unlock(&cmd->t_state_lock);
+ spin_unlock(&sess->sess_cmd_lock);
+ continue;
+ }
+ cmd->transport_state |= CMD_T_ABORTED;
spin_unlock(&cmd->t_state_lock);
+ rc = kref_get_unless_zero(&cmd->cmd_kref);
+ if (!rc) {
+ printk("LUN_RESET TMR: non-zero kref_get_unless_zero\n");
+ spin_unlock(&sess->sess_cmd_lock);
+ continue;
+ }
+ spin_unlock(&sess->sess_cmd_lock);
+
list_move_tail(&tmr_p->tmr_list, &drain_tmr_list);
}
spin_unlock_irqrestore(&dev->se_tmr_lock, flags);
@@ -233,20 +293,26 @@ static void core_tmr_drain_tmr_list(
(preempt_and_abort_list) ? "Preempt" : "", tmr_p,
tmr_p->function, tmr_p->response, cmd->t_state);
+ cancel_work_sync(&cmd->work);
+ transport_wait_for_tasks(cmd);
+
transport_cmd_finish_abort(cmd, 1);
+ target_put_sess_cmd(cmd->se_sess, cmd);
}
}
static void core_tmr_drain_state_list(
struct se_device *dev,
struct se_cmd *prout_cmd,
- struct se_node_acl *tmr_nacl,
+ struct se_session *tmr_sess,
int tas,
struct list_head *preempt_and_abort_list)
{
LIST_HEAD(drain_task_list);
+ struct se_session *sess;
struct se_cmd *cmd, *next;
unsigned long flags;
+ int rc;
/*
* Complete outstanding commands with TASK_ABORTED SAM status.
@@ -285,6 +351,16 @@ static void core_tmr_drain_state_list(
if (prout_cmd == cmd)
continue;
+ sess = cmd->se_sess;
+ if (WARN_ON_ONCE(!sess))
+ continue;
+
+ spin_lock(&sess->sess_cmd_lock);
+ rc = __target_check_io_state(cmd, tmr_sess, tas);
+ spin_unlock(&sess->sess_cmd_lock);
+ if (!rc)
+ continue;
+
list_move_tail(&cmd->state_list, &drain_task_list);
cmd->state_active = false;
}
@@ -292,7 +368,7 @@ static void core_tmr_drain_state_list(
while (!list_empty(&drain_task_list)) {
cmd = list_entry(drain_task_list.next, struct se_cmd, state_list);
- list_del(&cmd->state_list);
+ list_del_init(&cmd->state_list);
pr_debug("LUN_RESET: %s cmd: %p"
" ITT/CmdSN: 0x%08x/0x%08x, i_state: %d, t_state: %d"
@@ -316,16 +392,11 @@ static void core_tmr_drain_state_list(
* loop above, but we do it down here given that
* cancel_work_sync may block.
*/
- if (cmd->t_state == TRANSPORT_COMPLETE)
- cancel_work_sync(&cmd->work);
-
- spin_lock_irqsave(&cmd->t_state_lock, flags);
- target_stop_cmd(cmd, &flags);
-
- cmd->transport_state |= CMD_T_ABORTED;
- spin_unlock_irqrestore(&cmd->t_state_lock, flags);
+ cancel_work_sync(&cmd->work);
+ transport_wait_for_tasks(cmd);
- core_tmr_handle_tas_abort(tmr_nacl, cmd, tas);
+ core_tmr_handle_tas_abort(cmd, tas);
+ target_put_sess_cmd(cmd->se_sess, cmd);
}
}
@@ -337,6 +408,7 @@ int core_tmr_lun_reset(
{
struct se_node_acl *tmr_nacl = NULL;
struct se_portal_group *tmr_tpg = NULL;
+ struct se_session *tmr_sess = NULL;
int tas;
/*
* TASK_ABORTED status bit, this is configurable via ConfigFS
@@ -355,8 +427,9 @@ int core_tmr_lun_reset(
* or struct se_device passthrough..
*/
if (tmr && tmr->task_cmd && tmr->task_cmd->se_sess) {
- tmr_nacl = tmr->task_cmd->se_sess->se_node_acl;
- tmr_tpg = tmr->task_cmd->se_sess->se_tpg;
+ tmr_sess = tmr->task_cmd->se_sess;
+ tmr_nacl = tmr_sess->se_node_acl;
+ tmr_tpg = tmr_sess->se_tpg;
if (tmr_nacl && tmr_tpg) {
pr_debug("LUN_RESET: TMR caller fabric: %s"
" initiator port %s\n",
@@ -369,7 +442,7 @@ int core_tmr_lun_reset(
dev->transport->name, tas);
core_tmr_drain_tmr_list(dev, tmr, preempt_and_abort_list);
- core_tmr_drain_state_list(dev, prout_cmd, tmr_nacl, tas,
+ core_tmr_drain_state_list(dev, prout_cmd, tmr_sess, tas,
preempt_and_abort_list);
/*
diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index 9eeeb78bf604..f787e53e12e8 100644
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -511,9 +511,6 @@ void transport_deregister_session(struct se_session *se_sess)
}
EXPORT_SYMBOL(transport_deregister_session);
-/*
- * Called with cmd->t_state_lock held.
- */
static void target_remove_from_state_list(struct se_cmd *cmd)
{
struct se_device *dev = cmd->se_dev;
@@ -538,10 +535,6 @@ static int transport_cmd_check_stop(struct se_cmd *cmd, bool remove_from_lists,
{
unsigned long flags;
- spin_lock_irqsave(&cmd->t_state_lock, flags);
- if (write_pending)
- cmd->t_state = TRANSPORT_WRITE_PENDING;
-
if (remove_from_lists) {
target_remove_from_state_list(cmd);
@@ -551,6 +544,10 @@ static int transport_cmd_check_stop(struct se_cmd *cmd, bool remove_from_lists,
cmd->se_lun = NULL;
}
+ spin_lock_irqsave(&cmd->t_state_lock, flags);
+ if (write_pending)
+ cmd->t_state = TRANSPORT_WRITE_PENDING;
+
/*
* Determine if frontend context caller is requesting the stopping of
* this command for frontend exceptions.
@@ -605,6 +602,8 @@ static void transport_lun_remove_cmd(struct se_cmd *cmd)
void transport_cmd_finish_abort(struct se_cmd *cmd, int remove)
{
+ bool ack_kref = (cmd->se_cmd_flags & SCF_ACK_KREF);
+
if (cmd->se_cmd_flags & SCF_SE_LUN_CMD)
transport_lun_remove_cmd(cmd);
/*
@@ -616,7 +615,7 @@ void transport_cmd_finish_abort(struct se_cmd *cmd, int remove)
if (transport_cmd_check_stop_to_fabric(cmd))
return;
- if (remove)
+ if (remove && ack_kref)
transport_put_cmd(cmd);
}
@@ -684,7 +683,7 @@ void target_complete_cmd(struct se_cmd *cmd, u8 scsi_status)
* Check for case where an explicit ABORT_TASK has been received
* and transport_wait_for_tasks() will be waiting for completion..
*/
- if (cmd->transport_state & CMD_T_ABORTED &&
+ if (cmd->transport_state & CMD_T_ABORTED ||
cmd->transport_state & CMD_T_STOP) {
spin_unlock_irqrestore(&cmd->t_state_lock, flags);
complete_all(&cmd->t_transport_stop_comp);
@@ -1759,19 +1758,21 @@ static bool target_handle_task_attr(struct se_cmd *cmd)
return true;
}
+static int __transport_check_aborted_status(struct se_cmd *, int);
+
void target_execute_cmd(struct se_cmd *cmd)
{
/*
- * If the received CDB has aleady been aborted stop processing it here.
- */
- if (transport_check_aborted_status(cmd, 1))
- return;
-
- /*
* Determine if frontend context caller is requesting the stopping of
* this command for frontend exceptions.
+ *
+ * If the received CDB has aleady been aborted stop processing it here.
*/
spin_lock_irq(&cmd->t_state_lock);
+ if (__transport_check_aborted_status(cmd, 1)) {
+ spin_unlock_irq(&cmd->t_state_lock);
+ return;
+ }
if (cmd->transport_state & CMD_T_STOP) {
pr_debug("%s:%d CMD_T_STOP for ITT: 0x%08x\n",
__func__, __LINE__,
@@ -2133,20 +2134,14 @@ static inline void transport_free_pages(struct se_cmd *cmd)
}
/**
- * transport_release_cmd - free a command
- * @cmd: command to free
+ * transport_put_cmd - release a reference to a command
+ * @cmd: command to release
*
- * This routine unconditionally frees a command, and reference counting
- * or list removal must be done in the caller.
+ * This routine releases our reference to the command and frees it if possible.
*/
-static int transport_release_cmd(struct se_cmd *cmd)
+static int transport_put_cmd(struct se_cmd *cmd)
{
BUG_ON(!cmd->se_tfo);
-
- if (cmd->se_cmd_flags & SCF_SCSI_TMR_CDB)
- core_tmr_release_req(cmd->se_tmr_req);
- if (cmd->t_task_cdb != cmd->__t_task_cdb)
- kfree(cmd->t_task_cdb);
/*
* If this cmd has been setup with target_get_sess_cmd(), drop
* the kref and call ->release_cmd() in kref callback.
@@ -2154,18 +2149,6 @@ static int transport_release_cmd(struct se_cmd *cmd)
return target_put_sess_cmd(cmd->se_sess, cmd);
}
-/**
- * transport_put_cmd - release a reference to a command
- * @cmd: command to release
- *
- * This routine releases our reference to the command and frees it if possible.
- */
-static int transport_put_cmd(struct se_cmd *cmd)
-{
- transport_free_pages(cmd);
- return transport_release_cmd(cmd);
-}
-
void *transport_kmap_data_sg(struct se_cmd *cmd)
{
struct scatterlist *sg = cmd->t_data_sg;
@@ -2361,34 +2344,59 @@ static void transport_write_pending_qf(struct se_cmd *cmd)
}
}
-int transport_generic_free_cmd(struct se_cmd *cmd, int wait_for_tasks)
+static bool
+__transport_wait_for_tasks(struct se_cmd *, bool, bool *, bool *,
+ unsigned long *flags);
+
+static void target_wait_free_cmd(struct se_cmd *cmd, bool *aborted, bool *tas)
{
unsigned long flags;
+
+ spin_lock_irqsave(&cmd->t_state_lock, flags);
+ __transport_wait_for_tasks(cmd, true, aborted, tas, &flags);
+ spin_unlock_irqrestore(&cmd->t_state_lock, flags);
+}
+
+int transport_generic_free_cmd(struct se_cmd *cmd, int wait_for_tasks)
+{
int ret = 0;
+ bool aborted = false, tas = false;
if (!(cmd->se_cmd_flags & SCF_SE_LUN_CMD)) {
if (wait_for_tasks && (cmd->se_cmd_flags & SCF_SCSI_TMR_CDB))
- transport_wait_for_tasks(cmd);
+ target_wait_free_cmd(cmd, &aborted, &tas);
- ret = transport_release_cmd(cmd);
+ if (!aborted || tas)
+ ret = transport_put_cmd(cmd);
} else {
if (wait_for_tasks)
- transport_wait_for_tasks(cmd);
+ target_wait_free_cmd(cmd, &aborted, &tas);
/*
* Handle WRITE failure case where transport_generic_new_cmd()
* has already added se_cmd to state_list, but fabric has
* failed command before I/O submission.
*/
- if (cmd->state_active) {
- spin_lock_irqsave(&cmd->t_state_lock, flags);
+ if (cmd->state_active)
target_remove_from_state_list(cmd);
- spin_unlock_irqrestore(&cmd->t_state_lock, flags);
- }
if (cmd->se_lun)
transport_lun_remove_cmd(cmd);
- ret = transport_put_cmd(cmd);
+ if (!aborted || tas)
+ ret = transport_put_cmd(cmd);
+ }
+ /*
+ * If the task has been internally aborted due to TMR ABORT_TASK
+ * or LUN_RESET, target_core_tmr.c is responsible for performing
+ * the remaining calls to target_put_sess_cmd(), and not the
+ * callers of this function.
+ */
+ if (aborted) {
+ pr_debug("Detected CMD_T_ABORTED for ITT: %u\n",
+ cmd->se_tfo->get_task_tag(cmd));
+ wait_for_completion(&cmd->cmd_wait_comp);
+ cmd->se_tfo->release_cmd(cmd);
+ ret = 1;
}
return ret;
}
@@ -2431,24 +2439,44 @@ out:
}
EXPORT_SYMBOL(target_get_sess_cmd);
+static void target_free_cmd_mem(struct se_cmd *cmd)
+{
+ transport_free_pages(cmd);
+
+ if (cmd->se_cmd_flags & SCF_SCSI_TMR_CDB)
+ core_tmr_release_req(cmd->se_tmr_req);
+ if (cmd->t_task_cdb != cmd->__t_task_cdb)
+ kfree(cmd->t_task_cdb);
+}
+
static void target_release_cmd_kref(struct kref *kref)
{
struct se_cmd *se_cmd = container_of(kref, struct se_cmd, cmd_kref);
struct se_session *se_sess = se_cmd->se_sess;
+ bool fabric_stop;
if (list_empty(&se_cmd->se_cmd_list)) {
spin_unlock(&se_sess->sess_cmd_lock);
+ target_free_cmd_mem(se_cmd);
se_cmd->se_tfo->release_cmd(se_cmd);
return;
}
- if (se_sess->sess_tearing_down && se_cmd->cmd_wait_set) {
+
+ spin_lock(&se_cmd->t_state_lock);
+ fabric_stop = (se_cmd->transport_state & CMD_T_FABRIC_STOP);
+ spin_unlock(&se_cmd->t_state_lock);
+
+ if (se_cmd->cmd_wait_set || fabric_stop) {
+ list_del_init(&se_cmd->se_cmd_list);
spin_unlock(&se_sess->sess_cmd_lock);
+ target_free_cmd_mem(se_cmd);
complete(&se_cmd->cmd_wait_comp);
return;
}
- list_del(&se_cmd->se_cmd_list);
+ list_del_init(&se_cmd->se_cmd_list);
spin_unlock(&se_sess->sess_cmd_lock);
+ target_free_cmd_mem(se_cmd);
se_cmd->se_tfo->release_cmd(se_cmd);
}
@@ -2459,6 +2487,7 @@ static void target_release_cmd_kref(struct kref *kref)
int target_put_sess_cmd(struct se_session *se_sess, struct se_cmd *se_cmd)
{
if (!se_sess) {
+ target_free_cmd_mem(se_cmd);
se_cmd->se_tfo->release_cmd(se_cmd);
return 1;
}
@@ -2476,6 +2505,7 @@ void target_sess_cmd_list_set_waiting(struct se_session *se_sess)
{
struct se_cmd *se_cmd;
unsigned long flags;
+ int rc;
spin_lock_irqsave(&se_sess->sess_cmd_lock, flags);
if (se_sess->sess_tearing_down) {
@@ -2485,8 +2515,15 @@ void target_sess_cmd_list_set_waiting(struct se_session *se_sess)
se_sess->sess_tearing_down = 1;
list_splice_init(&se_sess->sess_cmd_list, &se_sess->sess_wait_list);
- list_for_each_entry(se_cmd, &se_sess->sess_wait_list, se_cmd_list)
- se_cmd->cmd_wait_set = 1;
+ list_for_each_entry(se_cmd, &se_sess->sess_wait_list, se_cmd_list) {
+ rc = kref_get_unless_zero(&se_cmd->cmd_kref);
+ if (rc) {
+ se_cmd->cmd_wait_set = 1;
+ spin_lock(&se_cmd->t_state_lock);
+ se_cmd->transport_state |= CMD_T_FABRIC_STOP;
+ spin_unlock(&se_cmd->t_state_lock);
+ }
+ }
spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags);
}
@@ -2499,15 +2536,25 @@ void target_wait_for_sess_cmds(struct se_session *se_sess)
{
struct se_cmd *se_cmd, *tmp_cmd;
unsigned long flags;
+ bool tas;
list_for_each_entry_safe(se_cmd, tmp_cmd,
&se_sess->sess_wait_list, se_cmd_list) {
- list_del(&se_cmd->se_cmd_list);
+ list_del_init(&se_cmd->se_cmd_list);
pr_debug("Waiting for se_cmd: %p t_state: %d, fabric state:"
" %d\n", se_cmd, se_cmd->t_state,
se_cmd->se_tfo->get_cmd_state(se_cmd));
+ spin_lock_irqsave(&se_cmd->t_state_lock, flags);
+ tas = (se_cmd->transport_state & CMD_T_TAS);
+ spin_unlock_irqrestore(&se_cmd->t_state_lock, flags);
+
+ if (!target_put_sess_cmd(se_sess, se_cmd)) {
+ if (tas)
+ target_put_sess_cmd(se_sess, se_cmd);
+ }
+
wait_for_completion(&se_cmd->cmd_wait_comp);
pr_debug("After cmd_wait_comp: se_cmd: %p t_state: %d"
" fabric state: %d\n", se_cmd, se_cmd->t_state,
@@ -2550,34 +2597,38 @@ int transport_clear_lun_ref(struct se_lun *lun)
return 0;
}
-/**
- * transport_wait_for_tasks - wait for completion to occur
- * @cmd: command to wait
- *
- * Called from frontend fabric context to wait for storage engine
- * to pause and/or release frontend generated struct se_cmd.
- */
-bool transport_wait_for_tasks(struct se_cmd *cmd)
+static bool
+__transport_wait_for_tasks(struct se_cmd *cmd, bool fabric_stop,
+ bool *aborted, bool *tas, unsigned long *flags)
+ __releases(&cmd->t_state_lock)
+ __acquires(&cmd->t_state_lock)
{
- unsigned long flags;
- spin_lock_irqsave(&cmd->t_state_lock, flags);
+ assert_spin_locked(&cmd->t_state_lock);
+ WARN_ON_ONCE(!irqs_disabled());
+
+ if (fabric_stop)
+ cmd->transport_state |= CMD_T_FABRIC_STOP;
+
+ if (cmd->transport_state & CMD_T_ABORTED)
+ *aborted = true;
+
+ if (cmd->transport_state & CMD_T_TAS)
+ *tas = true;
+
if (!(cmd->se_cmd_flags & SCF_SE_LUN_CMD) &&
- !(cmd->se_cmd_flags & SCF_SCSI_TMR_CDB)) {
- spin_unlock_irqrestore(&cmd->t_state_lock, flags);
+ !(cmd->se_cmd_flags & SCF_SCSI_TMR_CDB))
return false;
- }
if (!(cmd->se_cmd_flags & SCF_SUPPORTED_SAM_OPCODE) &&
- !(cmd->se_cmd_flags & SCF_SCSI_TMR_CDB)) {
- spin_unlock_irqrestore(&cmd->t_state_lock, flags);
+ !(cmd->se_cmd_flags & SCF_SCSI_TMR_CDB))
return false;
- }
- if (!(cmd->transport_state & CMD_T_ACTIVE)) {
- spin_unlock_irqrestore(&cmd->t_state_lock, flags);
+ if (!(cmd->transport_state & CMD_T_ACTIVE))
+ return false;
+
+ if (fabric_stop && *aborted)
return false;
- }
cmd->transport_state |= CMD_T_STOP;
@@ -2586,20 +2637,37 @@ bool transport_wait_for_tasks(struct se_cmd *cmd)
cmd, cmd->se_tfo->get_task_tag(cmd),
cmd->se_tfo->get_cmd_state(cmd), cmd->t_state);
- spin_unlock_irqrestore(&cmd->t_state_lock, flags);
+ spin_unlock_irqrestore(&cmd->t_state_lock, *flags);
wait_for_completion(&cmd->t_transport_stop_comp);
- spin_lock_irqsave(&cmd->t_state_lock, flags);
+ spin_lock_irqsave(&cmd->t_state_lock, *flags);
cmd->transport_state &= ~(CMD_T_ACTIVE | CMD_T_STOP);
pr_debug("wait_for_tasks: Stopped wait_for_completion("
"&cmd->t_transport_stop_comp) for ITT: 0x%08x\n",
cmd->se_tfo->get_task_tag(cmd));
+ return true;
+}
+
+/**
+ * transport_wait_for_tasks - wait for completion to occur
+ * @cmd: command to wait
+ *
+ * Called from frontend fabric context to wait for storage engine
+ * to pause and/or release frontend generated struct se_cmd.
+ */
+bool transport_wait_for_tasks(struct se_cmd *cmd)
+{
+ unsigned long flags;
+ bool ret, aborted = false, tas = false;
+
+ spin_lock_irqsave(&cmd->t_state_lock, flags);
+ ret = __transport_wait_for_tasks(cmd, false, &aborted, &tas, &flags);
spin_unlock_irqrestore(&cmd->t_state_lock, flags);
- return true;
+ return ret;
}
EXPORT_SYMBOL(transport_wait_for_tasks);
@@ -2885,28 +2953,50 @@ after_reason:
}
EXPORT_SYMBOL(transport_send_check_condition_and_sense);
-int transport_check_aborted_status(struct se_cmd *cmd, int send_status)
+static int __transport_check_aborted_status(struct se_cmd *cmd, int send_status)
+ __releases(&cmd->t_state_lock)
+ __acquires(&cmd->t_state_lock)
{
+ assert_spin_locked(&cmd->t_state_lock);
+ WARN_ON_ONCE(!irqs_disabled());
+
if (!(cmd->transport_state & CMD_T_ABORTED))
return 0;
-
/*
* If cmd has been aborted but either no status is to be sent or it has
* already been sent, just return
*/
- if (!send_status || !(cmd->se_cmd_flags & SCF_SEND_DELAYED_TAS))
+ if (!send_status || !(cmd->se_cmd_flags & SCF_SEND_DELAYED_TAS)) {
+ if (send_status)
+ cmd->se_cmd_flags |= SCF_SEND_DELAYED_TAS;
return 1;
+ }
- pr_debug("Sending delayed SAM_STAT_TASK_ABORTED status for CDB: 0x%02x ITT: 0x%08x\n",
- cmd->t_task_cdb[0], cmd->se_tfo->get_task_tag(cmd));
+ pr_debug("Sending delayed SAM_STAT_TASK_ABORTED status for CDB:"
+ " 0x%02x ITT: 0x%08x\n", cmd->t_task_cdb[0],
+ cmd->se_tfo->get_task_tag(cmd));
cmd->se_cmd_flags &= ~SCF_SEND_DELAYED_TAS;
cmd->scsi_status = SAM_STAT_TASK_ABORTED;
trace_target_cmd_complete(cmd);
+
+ spin_unlock_irq(&cmd->t_state_lock);
cmd->se_tfo->queue_status(cmd);
+ spin_lock_irq(&cmd->t_state_lock);
return 1;
}
+
+int transport_check_aborted_status(struct se_cmd *cmd, int send_status)
+{
+ int ret;
+
+ spin_lock_irq(&cmd->t_state_lock);
+ ret = __transport_check_aborted_status(cmd, send_status);
+ spin_unlock_irq(&cmd->t_state_lock);
+
+ return ret;
+}
EXPORT_SYMBOL(transport_check_aborted_status);
void transport_send_task_abort(struct se_cmd *cmd)
@@ -2928,12 +3018,17 @@ void transport_send_task_abort(struct se_cmd *cmd)
*/
if (cmd->data_direction == DMA_TO_DEVICE) {
if (cmd->se_tfo->write_pending_status(cmd) != 0) {
- cmd->transport_state |= CMD_T_ABORTED;
+ spin_lock_irqsave(&cmd->t_state_lock, flags);
+ if (cmd->se_cmd_flags & SCF_SEND_DELAYED_TAS) {
+ spin_unlock_irqrestore(&cmd->t_state_lock, flags);
+ goto send_abort;
+ }
cmd->se_cmd_flags |= SCF_SEND_DELAYED_TAS;
- smp_mb__after_atomic();
+ spin_unlock_irqrestore(&cmd->t_state_lock, flags);
return;
}
}
+send_abort:
cmd->scsi_status = SAM_STAT_TASK_ABORTED;
transport_lun_remove_cmd(cmd);
@@ -2951,8 +3046,17 @@ static void target_tmr_work(struct work_struct *work)
struct se_cmd *cmd = container_of(work, struct se_cmd, work);
struct se_device *dev = cmd->se_dev;
struct se_tmr_req *tmr = cmd->se_tmr_req;
+ unsigned long flags;
int ret;
+ spin_lock_irqsave(&cmd->t_state_lock, flags);
+ if (cmd->transport_state & CMD_T_ABORTED) {
+ tmr->response = TMR_FUNCTION_REJECTED;
+ spin_unlock_irqrestore(&cmd->t_state_lock, flags);
+ goto check_stop;
+ }
+ spin_unlock_irqrestore(&cmd->t_state_lock, flags);
+
switch (tmr->function) {
case TMR_ABORT_TASK:
core_tmr_abort_task(dev, tmr, cmd->se_sess);
@@ -2980,9 +3084,17 @@ static void target_tmr_work(struct work_struct *work)
break;
}
+ spin_lock_irqsave(&cmd->t_state_lock, flags);
+ if (cmd->transport_state & CMD_T_ABORTED) {
+ spin_unlock_irqrestore(&cmd->t_state_lock, flags);
+ goto check_stop;
+ }
cmd->t_state = TRANSPORT_ISTATE_PROCESSING;
+ spin_unlock_irqrestore(&cmd->t_state_lock, flags);
+
cmd->se_tfo->queue_tm_rsp(cmd);
+check_stop:
transport_cmd_check_stop_to_fabric(cmd);
}
diff --git a/drivers/usb/chipidea/otg.c b/drivers/usb/chipidea/otg.c
index a048b08b9d4d..92f169ca520e 100644
--- a/drivers/usb/chipidea/otg.c
+++ b/drivers/usb/chipidea/otg.c
@@ -116,7 +116,7 @@ static void ci_otg_work(struct work_struct *work)
int ci_hdrc_otg_init(struct ci_hdrc *ci)
{
INIT_WORK(&ci->work, ci_otg_work);
- ci->wq = create_singlethread_workqueue("ci_otg");
+ ci->wq = create_freezable_workqueue("ci_otg");
if (!ci->wq) {
dev_err(ci->dev, "can't create workqueue\n");
return -ENODEV;
diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h
index 1ba964de9c3b..fd91c10a21a9 100644
--- a/drivers/usb/dwc3/core.h
+++ b/drivers/usb/dwc3/core.h
@@ -754,7 +754,6 @@ struct dwc3 {
unsigned pullups_connected:1;
unsigned resize_fifos:1;
unsigned setup_packet_pending:1;
- unsigned start_config_issued:1;
unsigned three_stage_setup:1;
};
diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c
index 312bc0542562..ba35201e19fe 100644
--- a/drivers/usb/dwc3/ep0.c
+++ b/drivers/usb/dwc3/ep0.c
@@ -524,7 +524,6 @@ static int dwc3_ep0_set_config(struct dwc3 *dwc, struct usb_ctrlrequest *ctrl)
int ret;
u32 reg;
- dwc->start_config_issued = false;
cfg = le16_to_cpu(ctrl->wValue);
switch (state) {
@@ -707,10 +706,6 @@ static int dwc3_ep0_std_request(struct dwc3 *dwc, struct usb_ctrlrequest *ctrl)
dev_vdbg(dwc->dev, "USB_REQ_SET_ISOCH_DELAY\n");
ret = dwc3_ep0_set_isoch_delay(dwc, ctrl);
break;
- case USB_REQ_SET_INTERFACE:
- dev_vdbg(dwc->dev, "USB_REQ_SET_INTERFACE");
- dwc->start_config_issued = false;
- /* Fall through */
default:
dev_vdbg(dwc->dev, "Forwarding to gadget driver\n");
ret = dwc3_ep0_delegate_req(dwc, ctrl);
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 186a79d43250..4a279bb9092a 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -472,24 +472,66 @@ static void dwc3_free_trb_pool(struct dwc3_ep *dep)
dep->trb_pool_dma = 0;
}
+static int dwc3_gadget_set_xfer_resource(struct dwc3 *dwc, struct dwc3_ep *dep);
+
+/**
+ * dwc3_gadget_start_config - Configure EP resources
+ * @dwc: pointer to our controller context structure
+ * @dep: endpoint that is being enabled
+ *
+ * The assignment of transfer resources cannot perfectly follow the
+ * data book due to the fact that the controller driver does not have
+ * all knowledge of the configuration in advance. It is given this
+ * information piecemeal by the composite gadget framework after every
+ * SET_CONFIGURATION and SET_INTERFACE. Trying to follow the databook
+ * programming model in this scenario can cause errors. For two
+ * reasons:
+ *
+ * 1) The databook says to do DEPSTARTCFG for every SET_CONFIGURATION
+ * and SET_INTERFACE (8.1.5). This is incorrect in the scenario of
+ * multiple interfaces.
+ *
+ * 2) The databook does not mention doing more DEPXFERCFG for new
+ * endpoint on alt setting (8.1.6).
+ *
+ * The following simplified method is used instead:
+ *
+ * All hardware endpoints can be assigned a transfer resource and this
+ * setting will stay persistent until either a core reset or
+ * hibernation. So whenever we do a DEPSTARTCFG(0) we can go ahead and
+ * do DEPXFERCFG for every hardware endpoint as well. We are
+ * guaranteed that there are as many transfer resources as endpoints.
+ *
+ * This function is called for each endpoint when it is being enabled
+ * but is triggered only when called for EP0-out, which always happens
+ * first, and which should only happen in one of the above conditions.
+ */
static int dwc3_gadget_start_config(struct dwc3 *dwc, struct dwc3_ep *dep)
{
struct dwc3_gadget_ep_cmd_params params;
u32 cmd;
+ int i;
+ int ret;
+
+ if (dep->number)
+ return 0;
memset(¶ms, 0x00, sizeof(params));
+ cmd = DWC3_DEPCMD_DEPSTARTCFG;
- if (dep->number != 1) {
- cmd = DWC3_DEPCMD_DEPSTARTCFG;
- /* XferRscIdx == 0 for ep0 and 2 for the remaining */
- if (dep->number > 1) {
- if (dwc->start_config_issued)
- return 0;
- dwc->start_config_issued = true;
- cmd |= DWC3_DEPCMD_PARAM(2);
- }
+ ret = dwc3_send_gadget_ep_cmd(dwc, 0, cmd, ¶ms);
+ if (ret)
+ return ret;
- return dwc3_send_gadget_ep_cmd(dwc, 0, cmd, ¶ms);
+ for (i = 0; i < DWC3_ENDPOINTS_NUM; i++) {
+ struct dwc3_ep *dep = dwc->eps[i];
+
+ if (!dep)
+ continue;
+
+ ret = dwc3_gadget_set_xfer_resource(dwc, dep);
+ if (ret)
+ return ret;
}
return 0;
@@ -603,10 +645,6 @@ static int __dwc3_gadget_ep_enable(struct dwc3_ep *dep,
struct dwc3_trb *trb_st_hw;
struct dwc3_trb *trb_link;
- ret = dwc3_gadget_set_xfer_resource(dwc, dep);
- if (ret)
- return ret;
-
dep->endpoint.desc = desc;
dep->comp_desc = comp_desc;
dep->type = usb_endpoint_type(desc);
@@ -1666,8 +1704,6 @@ static int dwc3_gadget_start(struct usb_gadget *g,
}
dwc3_writel(dwc->regs, DWC3_DCFG, reg);
- dwc->start_config_issued = false;
-
/* Start with SuperSpeed Default */
dwc3_gadget_ep0_desc.wMaxPacketSize = cpu_to_le16(512);
@@ -2237,7 +2273,6 @@ static void dwc3_gadget_disconnect_interrupt(struct dwc3 *dwc)
dwc3_writel(dwc->regs, DWC3_DCTL, reg);
dwc3_disconnect_gadget(dwc);
- dwc->start_config_issued = false;
dwc->gadget.speed = USB_SPEED_UNKNOWN;
dwc->setup_packet_pending = false;
@@ -2293,7 +2328,6 @@ static void dwc3_gadget_reset_interrupt(struct dwc3 *dwc)
dwc3_stop_active_transfers(dwc);
dwc3_clear_stall_all_ep(dwc);
- dwc->start_config_issued = false;
/* Reset device address to zero */
reg = dwc3_readl(dwc->regs, DWC3_DCFG);
diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c
index 02e6fe228a63..922723edd6b0 100644
--- a/drivers/usb/serial/cp210x.c
+++ b/drivers/usb/serial/cp210x.c
@@ -162,6 +162,9 @@ static const struct usb_device_id id_table[] = {
{ USB_DEVICE(0x1843, 0x0200) }, /* Vaisala USB Instrument Cable */
{ USB_DEVICE(0x18EF, 0xE00F) }, /* ELV USB-I2C-Interface */
{ USB_DEVICE(0x18EF, 0xE025) }, /* ELV Marble Sound Board 1 */
+ { USB_DEVICE(0x1901, 0x0190) }, /* GE B850 CP2105 Recorder interface */
+ { USB_DEVICE(0x1901, 0x0193) }, /* GE B650 CP2104 PMC interface */
+ { USB_DEVICE(0x19CF, 0x3000) }, /* Parrot NMEA GPS Flight Recorder */
{ USB_DEVICE(0x1ADB, 0x0001) }, /* Schweitzer Engineering C662 Cable */
{ USB_DEVICE(0x1B1C, 0x1C00) }, /* Corsair USB Dongle */
{ USB_DEVICE(0x1BA4, 0x0002) }, /* Silicon Labs 358x factory default */
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 57d38623929d..5396e8bfeb6b 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -273,6 +273,7 @@ static void option_instat_callback(struct urb *urb);
#define TELIT_PRODUCT_UE910_V2 0x1012
#define TELIT_PRODUCT_LE922_USBCFG0 0x1042
#define TELIT_PRODUCT_LE922_USBCFG3 0x1043
+#define TELIT_PRODUCT_LE922_USBCFG5 0x1045
#define TELIT_PRODUCT_LE920 0x1200
#define TELIT_PRODUCT_LE910 0x1201
@@ -317,6 +318,7 @@ static void option_instat_callback(struct urb *urb);
#define TOSHIBA_PRODUCT_G450 0x0d45
#define ALINK_VENDOR_ID 0x1e0e
+#define SIMCOM_PRODUCT_SIM7100E 0x9001 /* Yes, ALINK_VENDOR_ID */
#define ALINK_PRODUCT_PH300 0x9100
#define ALINK_PRODUCT_3GU 0x9200
@@ -617,6 +619,10 @@ static const struct option_blacklist_info zte_1255_blacklist = {
.reserved = BIT(3) | BIT(4),
};
+static const struct option_blacklist_info simcom_sim7100e_blacklist = {
+ .reserved = BIT(5) | BIT(6),
+};
+
static const struct option_blacklist_info telit_le910_blacklist = {
.sendsetup = BIT(0),
.reserved = BIT(1) | BIT(2),
@@ -1137,6 +1143,8 @@ static const struct usb_device_id option_ids[] = {
{ USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC650) },
{ USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC680) },
{ USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6000)}, /* ZTE AC8700 */
+ { USB_DEVICE_AND_INTERFACE_INFO(QUALCOMM_VENDOR_ID, 0x6001, 0xff, 0xff, 0xff), /* 4G LTE usb-modem U901 */
+ .driver_info = (kernel_ulong_t)&net_intf3_blacklist },
{ USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6613)}, /* Onda H600/ZTE MF330 */
{ USB_DEVICE(QUALCOMM_VENDOR_ID, 0x0023)}, /* ONYX 3G device */
{ USB_DEVICE(QUALCOMM_VENDOR_ID, 0x9000)}, /* SIMCom SIM5218 */
@@ -1144,6 +1152,8 @@ static const struct usb_device_id option_ids[] = {
.driver_info = (kernel_ulong_t)&sierra_mc73xx_blacklist }, /* MC73xx */
{ USB_DEVICE_INTERFACE_CLASS(SIERRA_VENDOR_ID, 0x9041, 0xff),
.driver_info = (kernel_ulong_t)&sierra_mc73xx_blacklist }, /* MC7305/MC7355 */
+ { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x9003), /* Quectel UC20 */
+ .driver_info = (kernel_ulong_t)&net_intf4_blacklist },
{ USB_DEVICE(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_6001) },
{ USB_DEVICE(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_CMU_300) },
{ USB_DEVICE(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_6003),
@@ -1195,6 +1205,8 @@ static const struct usb_device_id option_ids[] = {
.driver_info = (kernel_ulong_t)&telit_le922_blacklist_usbcfg0 },
{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE922_USBCFG3),
.driver_info = (kernel_ulong_t)&telit_le922_blacklist_usbcfg3 },
+ { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, TELIT_PRODUCT_LE922_USBCFG5, 0xff),
+ .driver_info = (kernel_ulong_t)&telit_le922_blacklist_usbcfg0 },
{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE910),
.driver_info = (kernel_ulong_t)&telit_le910_blacklist },
{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE920),
@@ -1656,6 +1668,8 @@ static const struct usb_device_id option_ids[] = {
{ USB_DEVICE(ALINK_VENDOR_ID, 0x9000) },
{ USB_DEVICE(ALINK_VENDOR_ID, ALINK_PRODUCT_PH300) },
{ USB_DEVICE_AND_INTERFACE_INFO(ALINK_VENDOR_ID, ALINK_PRODUCT_3GU, 0xff, 0xff, 0xff) },
+ { USB_DEVICE(ALINK_VENDOR_ID, SIMCOM_PRODUCT_SIM7100E),
+ .driver_info = (kernel_ulong_t)&simcom_sim7100e_blacklist },
{ USB_DEVICE(ALCATEL_VENDOR_ID, ALCATEL_PRODUCT_X060S_X200),
.driver_info = (kernel_ulong_t)&alcatel_x200_blacklist
},
diff --git a/drivers/usb/serial/qcserial.c b/drivers/usb/serial/qcserial.c
index 514fa91cf74e..f0a2ad15a992 100644
--- a/drivers/usb/serial/qcserial.c
+++ b/drivers/usb/serial/qcserial.c
@@ -155,14 +155,17 @@ static const struct usb_device_id id_table[] = {
{DEVICE_SWI(0x1199, 0x9056)}, /* Sierra Wireless Modem */
{DEVICE_SWI(0x1199, 0x9060)}, /* Sierra Wireless Modem */
{DEVICE_SWI(0x1199, 0x9061)}, /* Sierra Wireless Modem */
- {DEVICE_SWI(0x1199, 0x9070)}, /* Sierra Wireless MC74xx/EM74xx */
- {DEVICE_SWI(0x1199, 0x9071)}, /* Sierra Wireless MC74xx/EM74xx */
+ {DEVICE_SWI(0x1199, 0x9070)}, /* Sierra Wireless MC74xx */
+ {DEVICE_SWI(0x1199, 0x9071)}, /* Sierra Wireless MC74xx */
+ {DEVICE_SWI(0x1199, 0x9078)}, /* Sierra Wireless EM74xx */
+ {DEVICE_SWI(0x1199, 0x9079)}, /* Sierra Wireless EM74xx */
{DEVICE_SWI(0x413c, 0x81a2)}, /* Dell Wireless 5806 Gobi(TM) 4G LTE Mobile Broadband Card */
{DEVICE_SWI(0x413c, 0x81a3)}, /* Dell Wireless 5570 HSPA+ (42Mbps) Mobile Broadband Card */
{DEVICE_SWI(0x413c, 0x81a4)}, /* Dell Wireless 5570e HSPA+ (42Mbps) Mobile Broadband Card */
{DEVICE_SWI(0x413c, 0x81a8)}, /* Dell Wireless 5808 Gobi(TM) 4G LTE Mobile Broadband Card */
{DEVICE_SWI(0x413c, 0x81a9)}, /* Dell Wireless 5808e Gobi(TM) 4G LTE Mobile Broadband Card */
{DEVICE_SWI(0x413c, 0x81b1)}, /* Dell Wireless 5809e Gobi(TM) 4G LTE Mobile Broadband Card */
+ {DEVICE_SWI(0x413c, 0x81b3)}, /* Dell Wireless 5809e Gobi(TM) 4G LTE Mobile Broadband Card (rev3) */
/* Huawei devices */
{DEVICE_HWI(0x03f0, 0x581d)}, /* HP lt4112 LTE/HSPA+ Gobi 4G Modem (Huawei me906e) */
diff --git a/drivers/vfio/pci/vfio_pci.c b/drivers/vfio/pci/vfio_pci.c
index 652ab678160e..a1e77f570b19 100644
--- a/drivers/vfio/pci/vfio_pci.c
+++ b/drivers/vfio/pci/vfio_pci.c
@@ -346,7 +346,8 @@ static long vfio_pci_ioctl(void *device_data,
info.num_regions = VFIO_PCI_NUM_REGIONS;
info.num_irqs = VFIO_PCI_NUM_IRQS;
- return copy_to_user((void __user *)arg, &info, minsz);
+ return copy_to_user((void __user *)arg, &info, minsz) ?
+ -EFAULT : 0;
} else if (cmd == VFIO_DEVICE_GET_REGION_INFO) {
struct pci_dev *pdev = vdev->pdev;
@@ -419,7 +420,8 @@ static long vfio_pci_ioctl(void *device_data,
return -EINVAL;
}
- return copy_to_user((void __user *)arg, &info, minsz);
+ return copy_to_user((void __user *)arg, &info, minsz) ?
+ -EFAULT : 0;
} else if (cmd == VFIO_DEVICE_GET_IRQ_INFO) {
struct vfio_irq_info info;
@@ -453,7 +455,8 @@ static long vfio_pci_ioctl(void *device_data,
else
info.flags |= VFIO_IRQ_INFO_NORESIZE;
- return copy_to_user((void __user *)arg, &info, minsz);
+ return copy_to_user((void __user *)arg, &info, minsz) ?
+ -EFAULT : 0;
} else if (cmd == VFIO_DEVICE_SET_IRQS) {
struct vfio_irq_set hdr;
diff --git a/drivers/vfio/vfio_iommu_type1.c b/drivers/vfio/vfio_iommu_type1.c
index 0734fbe5b651..0e153f23c47f 100644
--- a/drivers/vfio/vfio_iommu_type1.c
+++ b/drivers/vfio/vfio_iommu_type1.c
@@ -908,7 +908,8 @@ static long vfio_iommu_type1_ioctl(void *iommu_data,
info.iova_pgsizes = vfio_pgsize_bitmap(iommu);
- return copy_to_user((void __user *)arg, &info, minsz);
+ return copy_to_user((void __user *)arg, &info, minsz) ?
+ -EFAULT : 0;
} else if (cmd == VFIO_IOMMU_MAP_DMA) {
struct vfio_iommu_type1_dma_map map;
@@ -941,7 +942,8 @@ static long vfio_iommu_type1_ioctl(void *iommu_data,
if (ret)
return ret;
- return copy_to_user((void __user *)arg, &unmap, minsz);
+ return copy_to_user((void __user *)arg, &unmap, minsz) ?
+ -EFAULT : 0;
}
return -ENOTTY;
diff --git a/drivers/xen/xen-pciback/pciback_ops.c b/drivers/xen/xen-pciback/pciback_ops.c
index 73dafdc494aa..fb0221434f81 100644
--- a/drivers/xen/xen-pciback/pciback_ops.c
+++ b/drivers/xen/xen-pciback/pciback_ops.c
@@ -227,8 +227,9 @@ int xen_pcibk_enable_msix(struct xen_pcibk_device *pdev,
/*
* PCI_COMMAND_MEMORY must be enabled, otherwise we may not be able
* to access the BARs where the MSI-X entries reside.
+ * But VF devices are unique in which the PF needs to be checked.
*/
- pci_read_config_word(dev, PCI_COMMAND, &cmd);
+ pci_read_config_word(pci_physfn(dev), PCI_COMMAND, &cmd);
if (dev->msi_enabled || !(cmd & PCI_COMMAND_MEMORY))
return -ENXIO;
@@ -332,6 +333,9 @@ void xen_pcibk_do_op(struct work_struct *data)
struct xen_pcibk_dev_data *dev_data = NULL;
struct xen_pci_op *op = &pdev->op;
int test_intx = 0;
+#ifdef CONFIG_PCI_MSI
+ unsigned int nr = 0;
+#endif
*op = pdev->sh_info->op;
barrier();
@@ -360,6 +364,7 @@ void xen_pcibk_do_op(struct work_struct *data)
op->err = xen_pcibk_disable_msi(pdev, dev, op);
break;
case XEN_PCI_OP_enable_msix:
+ nr = op->value;
op->err = xen_pcibk_enable_msix(pdev, dev, op);
break;
case XEN_PCI_OP_disable_msix:
@@ -382,7 +387,7 @@ void xen_pcibk_do_op(struct work_struct *data)
if (op->cmd == XEN_PCI_OP_enable_msix && op->err == 0) {
unsigned int i;
- for (i = 0; i < op->value; i++)
+ for (i = 0; i < nr; i++)
pdev->sh_info->op.msix_entries[i].vector =
op->msix_entries[i].vector;
}
diff --git a/fs/aio.c b/fs/aio.c
index a6f86dae34be..7aaa4164bba5 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -1378,11 +1378,16 @@ static ssize_t aio_setup_single_vector(struct kiocb *kiocb,
unsigned long *nr_segs,
struct iovec *iovec)
{
- if (unlikely(!access_ok(!rw, buf, kiocb->ki_nbytes)))
+ size_t len = kiocb->ki_nbytes;
+
+ if (len > MAX_RW_COUNT)
+ len = MAX_RW_COUNT;
+
+ if (unlikely(!access_ok(!rw, buf, len)))
return -EFAULT;
iovec->iov_base = buf;
- iovec->iov_len = kiocb->ki_nbytes;
+ iovec->iov_len = len;
*nr_segs = 1;
return 0;
}
diff --git a/fs/cifs/cifsencrypt.c b/fs/cifs/cifsencrypt.c
index 3299778391fd..0bd335a393f8 100644
--- a/fs/cifs/cifsencrypt.c
+++ b/fs/cifs/cifsencrypt.c
@@ -710,7 +710,7 @@ setup_ntlmv2_rsp(struct cifs_ses *ses, const struct nls_table *nls_cp)
ses->auth_key.response = kmalloc(baselen + tilen, GFP_KERNEL);
if (!ses->auth_key.response) {
- rc = ENOMEM;
+ rc = -ENOMEM;
ses->auth_key.len = 0;
goto setup_ntlmv2_rsp_ret;
}
diff --git a/fs/cifs/cifsfs.h b/fs/cifs/cifsfs.h
index 70f178a7c759..e48d496c43c7 100644
--- a/fs/cifs/cifsfs.h
+++ b/fs/cifs/cifsfs.h
@@ -31,19 +31,15 @@
* so that it will fit. We use hash_64 to convert the value to 31 bits, and
* then add 1, to ensure that we don't end up with a 0 as the value.
*/
-#if BITS_PER_LONG == 64
static inline ino_t
cifs_uniqueid_to_ino_t(u64 fileid)
{
+ if ((sizeof(ino_t)) < (sizeof(u64)))
+ return (ino_t)hash_64(fileid, (sizeof(ino_t) * 8) - 1) + 1;
+
return (ino_t)fileid;
+
}
-#else
-static inline ino_t
-cifs_uniqueid_to_ino_t(u64 fileid)
-{
- return (ino_t)hash_64(fileid, (sizeof(ino_t) * 8) - 1) + 1;
-}
-#endif
extern struct file_system_type cifs_fs_type;
extern const struct address_space_operations cifs_addr_ops;
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index 6ce4e0954b98..2df1390e5d66 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -1399,11 +1399,10 @@ openRetry:
* current bigbuf.
*/
static int
-cifs_readv_discard(struct TCP_Server_Info *server, struct mid_q_entry *mid)
+discard_remaining_data(struct TCP_Server_Info *server)
{
unsigned int rfclen = get_rfc1002_length(server->smallbuf);
int remaining = rfclen + 4 - server->total_read;
- struct cifs_readdata *rdata = mid->callback_data;
while (remaining > 0) {
int length;
@@ -1417,10 +1416,20 @@ cifs_readv_discard(struct TCP_Server_Info *server, struct mid_q_entry *mid)
remaining -= length;
}
- dequeue_mid(mid, rdata->result);
return 0;
}
+static int
+cifs_readv_discard(struct TCP_Server_Info *server, struct mid_q_entry *mid)
+{
+ int length;
+ struct cifs_readdata *rdata = mid->callback_data;
+
+ length = discard_remaining_data(server);
+ dequeue_mid(mid, rdata->result);
+ return length;
+}
+
int
cifs_readv_receive(struct TCP_Server_Info *server, struct mid_q_entry *mid)
{
@@ -1449,6 +1458,12 @@ cifs_readv_receive(struct TCP_Server_Info *server, struct mid_q_entry *mid)
return length;
server->total_read += length;
+ if (server->ops->is_status_pending &&
+ server->ops->is_status_pending(buf, server, 0)) {
+ discard_remaining_data(server);
+ return -1;
+ }
+
/* Was the SMB read successful? */
rdata->result = server->ops->map_error(buf, false);
if (rdata->result != 0) {
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 87077559a0ab..c83a5a2fac70 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -1012,21 +1012,25 @@ parse_lease_state(struct TCP_Server_Info *server, struct smb2_create_rsp *rsp,
{
char *data_offset;
struct create_context *cc;
- unsigned int next = 0;
+ unsigned int next;
+ unsigned int remaining;
char *name;
data_offset = (char *)rsp + 4 + le32_to_cpu(rsp->CreateContextsOffset);
+ remaining = le32_to_cpu(rsp->CreateContextsLength);
cc = (struct create_context *)data_offset;
- do {
- cc = (struct create_context *)((char *)cc + next);
+ while (remaining >= sizeof(struct create_context)) {
name = le16_to_cpu(cc->NameOffset) + (char *)cc;
- if (le16_to_cpu(cc->NameLength) != 4 ||
- strncmp(name, "RqLs", 4)) {
- next = le32_to_cpu(cc->Next);
- continue;
- }
- return server->ops->parse_lease_buf(cc, epoch);
- } while (next != 0);
+ if (le16_to_cpu(cc->NameLength) == 4 &&
+ strncmp(name, "RqLs", 4) == 0)
+ return server->ops->parse_lease_buf(cc, epoch);
+
+ next = le32_to_cpu(cc->Next);
+ if (!next)
+ break;
+ remaining -= next;
+ cc = (struct create_context *)((char *)cc + next);
+ }
return 0;
}
diff --git a/fs/efivarfs/file.c b/fs/efivarfs/file.c
index cdb2971192a5..2a36e916d239 100644
--- a/fs/efivarfs/file.c
+++ b/fs/efivarfs/file.c
@@ -10,6 +10,7 @@
#include <linux/efi.h>
#include <linux/fs.h>
#include <linux/slab.h>
+#include <linux/mount.h>
#include "internal.h"
@@ -103,9 +104,78 @@ out_free:
return size;
}
+static int
+efivarfs_ioc_getxflags(struct file *file, void __user *arg)
+{
+ struct inode *inode = file->f_mapping->host;
+ unsigned int i_flags;
+ unsigned int flags = 0;
+
+ i_flags = inode->i_flags;
+ if (i_flags & S_IMMUTABLE)
+ flags |= FS_IMMUTABLE_FL;
+
+ if (copy_to_user(arg, &flags, sizeof(flags)))
+ return -EFAULT;
+ return 0;
+}
+
+static int
+efivarfs_ioc_setxflags(struct file *file, void __user *arg)
+{
+ struct inode *inode = file->f_mapping->host;
+ unsigned int flags;
+ unsigned int i_flags = 0;
+ int error;
+
+ if (!inode_owner_or_capable(inode))
+ return -EACCES;
+
+ if (copy_from_user(&flags, arg, sizeof(flags)))
+ return -EFAULT;
+
+ if (flags & ~FS_IMMUTABLE_FL)
+ return -EOPNOTSUPP;
+
+ if (!capable(CAP_LINUX_IMMUTABLE))
+ return -EPERM;
+
+ if (flags & FS_IMMUTABLE_FL)
+ i_flags |= S_IMMUTABLE;
+
+
+ error = mnt_want_write_file(file);
+ if (error)
+ return error;
+
+ mutex_lock(&inode->i_mutex);
+ inode_set_flags(inode, i_flags, S_IMMUTABLE);
+ mutex_unlock(&inode->i_mutex);
+
+ mnt_drop_write_file(file);
+
+ return 0;
+}
+
+long
+efivarfs_file_ioctl(struct file *file, unsigned int cmd, unsigned long p)
+{
+ void __user *arg = (void __user *)p;
+
+ switch (cmd) {
+ case FS_IOC_GETFLAGS:
+ return efivarfs_ioc_getxflags(file, arg);
+ case FS_IOC_SETFLAGS:
+ return efivarfs_ioc_setxflags(file, arg);
+ }
+
+ return -ENOTTY;
+}
+
const struct file_operations efivarfs_file_operations = {
.open = simple_open,
.read = efivarfs_file_read,
.write = efivarfs_file_write,
.llseek = no_llseek,
+ .unlocked_ioctl = efivarfs_file_ioctl,
};
diff --git a/fs/efivarfs/inode.c b/fs/efivarfs/inode.c
index 07ab49745e31..7e7318f10575 100644
--- a/fs/efivarfs/inode.c
+++ b/fs/efivarfs/inode.c
@@ -15,7 +15,8 @@
#include "internal.h"
struct inode *efivarfs_get_inode(struct super_block *sb,
- const struct inode *dir, int mode, dev_t dev)
+ const struct inode *dir, int mode,
+ dev_t dev, bool is_removable)
{
struct inode *inode = new_inode(sb);
@@ -23,6 +24,7 @@ struct inode *efivarfs_get_inode(struct super_block *sb,
inode->i_ino = get_next_ino();
inode->i_mode = mode;
inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
+ inode->i_flags = is_removable ? 0 : S_IMMUTABLE;
switch (mode & S_IFMT) {
case S_IFREG:
inode->i_fop = &efivarfs_file_operations;
@@ -102,22 +104,17 @@ static void efivarfs_hex_to_guid(const char *str, efi_guid_t *guid)
static int efivarfs_create(struct inode *dir, struct dentry *dentry,
umode_t mode, bool excl)
{
- struct inode *inode;
+ struct inode *inode = NULL;
struct efivar_entry *var;
int namelen, i = 0, err = 0;
+ bool is_removable = false;
if (!efivarfs_valid_name(dentry->d_name.name, dentry->d_name.len))
return -EINVAL;
- inode = efivarfs_get_inode(dir->i_sb, dir, mode, 0);
- if (!inode)
- return -ENOMEM;
-
var = kzalloc(sizeof(struct efivar_entry), GFP_KERNEL);
- if (!var) {
- err = -ENOMEM;
- goto out;
- }
+ if (!var)
+ return -ENOMEM;
/* length of the variable name itself: remove GUID and separator */
namelen = dentry->d_name.len - EFI_VARIABLE_GUID_LEN - 1;
@@ -125,6 +122,16 @@ static int efivarfs_create(struct inode *dir, struct dentry *dentry,
efivarfs_hex_to_guid(dentry->d_name.name + namelen + 1,
&var->var.VendorGuid);
+ if (efivar_variable_is_removable(var->var.VendorGuid,
+ dentry->d_name.name, namelen))
+ is_removable = true;
+
+ inode = efivarfs_get_inode(dir->i_sb, dir, mode, 0, is_removable);
+ if (!inode) {
+ err = -ENOMEM;
+ goto out;
+ }
+
for (i = 0; i < namelen; i++)
var->var.VariableName[i] = dentry->d_name.name[i];
@@ -138,7 +145,8 @@ static int efivarfs_create(struct inode *dir, struct dentry *dentry,
out:
if (err) {
kfree(var);
- iput(inode);
+ if (inode)
+ iput(inode);
}
return err;
}
diff --git a/fs/efivarfs/internal.h b/fs/efivarfs/internal.h
index b5ff16addb7c..b4505188e799 100644
--- a/fs/efivarfs/internal.h
+++ b/fs/efivarfs/internal.h
@@ -15,7 +15,8 @@ extern const struct file_operations efivarfs_file_operations;
extern const struct inode_operations efivarfs_dir_inode_operations;
extern bool efivarfs_valid_name(const char *str, int len);
extern struct inode *efivarfs_get_inode(struct super_block *sb,
- const struct inode *dir, int mode, dev_t dev);
+ const struct inode *dir, int mode, dev_t dev,
+ bool is_removable);
extern struct list_head efivarfs_list;
diff --git a/fs/efivarfs/super.c b/fs/efivarfs/super.c
index c2f421c30ccd..b57db0c6c2af 100644
--- a/fs/efivarfs/super.c
+++ b/fs/efivarfs/super.c
@@ -118,8 +118,9 @@ static int efivarfs_callback(efi_char16_t *name16, efi_guid_t vendor,
struct dentry *dentry, *root = sb->s_root;
unsigned long size = 0;
char *name;
- int len, i;
+ int len;
int err = -ENOMEM;
+ bool is_removable = false;
entry = kzalloc(sizeof(*entry), GFP_KERNEL);
if (!entry)
@@ -128,15 +129,17 @@ static int efivarfs_callback(efi_char16_t *name16, efi_guid_t vendor,
memcpy(entry->var.VariableName, name16, name_size);
memcpy(&(entry->var.VendorGuid), &vendor, sizeof(efi_guid_t));
- len = ucs2_strlen(entry->var.VariableName);
+ len = ucs2_utf8size(entry->var.VariableName);
/* name, plus '-', plus GUID, plus NUL*/
name = kmalloc(len + 1 + EFI_VARIABLE_GUID_LEN + 1, GFP_KERNEL);
if (!name)
goto fail;
- for (i = 0; i < len; i++)
- name[i] = entry->var.VariableName[i] & 0xFF;
+ ucs2_as_utf8(name, entry->var.VariableName, len);
+
+ if (efivar_variable_is_removable(entry->var.VendorGuid, name, len))
+ is_removable = true;
name[len] = '-';
@@ -144,7 +147,8 @@ static int efivarfs_callback(efi_char16_t *name16, efi_guid_t vendor,
name[len + EFI_VARIABLE_GUID_LEN+1] = '\0';
- inode = efivarfs_get_inode(sb, root->d_inode, S_IFREG | 0644, 0);
+ inode = efivarfs_get_inode(sb, root->d_inode, S_IFREG | 0644, 0,
+ is_removable);
if (!inode)
goto fail_name;
@@ -200,7 +204,7 @@ static int efivarfs_fill_super(struct super_block *sb, void *data, int silent)
sb->s_d_op = &efivarfs_d_ops;
sb->s_time_gran = 1;
- inode = efivarfs_get_inode(sb, NULL, S_IFDIR | 0755, 0);
+ inode = efivarfs_get_inode(sb, NULL, S_IFDIR | 0755, 0, true);
if (!inode)
return -ENOMEM;
inode->i_op = &efivarfs_dir_inode_operations;
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index f7a77141a77c..9af7ee7d0193 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -712,6 +712,34 @@ has_zeroout:
return retval;
}
+/*
+ * Update EXT4_MAP_FLAGS in bh->b_state. For buffer heads attached to pages
+ * we have to be careful as someone else may be manipulating b_state as well.
+ */
+static void ext4_update_bh_state(struct buffer_head *bh, unsigned long flags)
+{
+ unsigned long old_state;
+ unsigned long new_state;
+
+ flags &= EXT4_MAP_FLAGS;
+
+ /* Dummy buffer_head? Set non-atomically. */
+ if (!bh->b_page) {
+ bh->b_state = (bh->b_state & ~EXT4_MAP_FLAGS) | flags;
+ return;
+ }
+ /*
+ * Someone else may be modifying b_state. Be careful! This is ugly but
+ * once we get rid of using bh as a container for mapping information
+ * to pass to / from get_block functions, this can go away.
+ */
+ do {
+ old_state = ACCESS_ONCE(bh->b_state);
+ new_state = (old_state & ~EXT4_MAP_FLAGS) | flags;
+ } while (unlikely(
+ cmpxchg(&bh->b_state, old_state, new_state) != old_state));
+}
+
/* Maximum number of blocks we map for direct IO at once. */
#define DIO_MAX_BLOCKS 4096
@@ -748,7 +776,7 @@ static int _ext4_get_block(struct inode *inode, sector_t iblock,
ext4_io_end_t *io_end = ext4_inode_aio(inode);
map_bh(bh, inode->i_sb, map.m_pblk);
- bh->b_state = (bh->b_state & ~EXT4_MAP_FLAGS) | map.m_flags;
+ ext4_update_bh_state(bh, map.m_flags);
if (io_end && io_end->flag & EXT4_IO_END_UNWRITTEN)
set_buffer_defer_completion(bh);
bh->b_size = inode->i_sb->s_blocksize * map.m_len;
@@ -1694,7 +1722,7 @@ int ext4_da_get_block_prep(struct inode *inode, sector_t iblock,
return ret;
map_bh(bh, inode->i_sb, map.m_pblk);
- bh->b_state = (bh->b_state & ~EXT4_MAP_FLAGS) | map.m_flags;
+ ext4_update_bh_state(bh, map.m_flags);
if (buffer_unwritten(bh)) {
/* A delayed write to unwritten bh should be marked
@@ -3173,29 +3201,29 @@ static ssize_t ext4_ext_direct_IO(int rw, struct kiocb *iocb,
* case, we allocate an io_end structure to hook to the iocb.
*/
iocb->private = NULL;
- ext4_inode_aio_set(inode, NULL);
- if (!is_sync_kiocb(iocb)) {
- io_end = ext4_init_io_end(inode, GFP_NOFS);
- if (!io_end) {
- ret = -ENOMEM;
- goto retake_lock;
- }
- /*
- * Grab reference for DIO. Will be dropped in ext4_end_io_dio()
- */
- iocb->private = ext4_get_io_end(io_end);
- /*
- * we save the io structure for current async direct
- * IO, so that later ext4_map_blocks() could flag the
- * io structure whether there is a unwritten extents
- * needs to be converted when IO is completed.
- */
- ext4_inode_aio_set(inode, io_end);
- }
-
if (overwrite) {
get_block_func = ext4_get_block_write_nolock;
} else {
+ ext4_inode_aio_set(inode, NULL);
+ if (!is_sync_kiocb(iocb)) {
+ io_end = ext4_init_io_end(inode, GFP_NOFS);
+ if (!io_end) {
+ ret = -ENOMEM;
+ goto retake_lock;
+ }
+ /*
+ * Grab reference for DIO. Will be dropped in
+ * ext4_end_io_dio()
+ */
+ iocb->private = ext4_get_io_end(io_end);
+ /*
+ * we save the io structure for current async direct
+ * IO, so that later ext4_map_blocks() could flag the
+ * io structure whether there is a unwritten extents
+ * needs to be converted when IO is completed.
+ */
+ ext4_inode_aio_set(inode, io_end);
+ }
get_block_func = ext4_get_block_write;
dio_flags = DIO_LOCKING;
}
diff --git a/fs/ext4/move_extent.c b/fs/ext4/move_extent.c
index 2484c7ec6a72..2423b0068183 100644
--- a/fs/ext4/move_extent.c
+++ b/fs/ext4/move_extent.c
@@ -915,10 +915,11 @@ move_extent_per_page(struct file *o_filp, struct inode *donor_inode,
unsigned long blocksize = orig_inode->i_sb->s_blocksize;
unsigned int w_flags = 0;
unsigned int tmp_data_size, data_size, replaced_size;
- int err2, jblocks, retries = 0;
+ int i, err2, jblocks, retries = 0;
int replaced_count = 0;
int from = data_offset_in_page << orig_inode->i_blkbits;
int blocks_per_page = PAGE_CACHE_SIZE >> orig_inode->i_blkbits;
+ struct buffer_head *bh = NULL;
/*
* It needs twice the amount of ordinary journal buffers because
@@ -1027,8 +1028,17 @@ data_copy:
}
/* Perform all necessary steps similar write_begin()/write_end()
* but keeping in mind that i_size will not change */
- *err = __block_write_begin(pagep[0], from, replaced_size,
- ext4_get_block);
+ if (!page_has_buffers(pagep[0]))
+ create_empty_buffers(pagep[0], 1 << orig_inode->i_blkbits, 0);
+ bh = page_buffers(pagep[0]);
+ for (i = 0; i < data_offset_in_page; i++)
+ bh = bh->b_this_page;
+ for (i = 0; i < block_len_in_page; i++) {
+ *err = ext4_get_block(orig_inode, orig_blk_offset + i, bh, 0);
+ if (*err < 0)
+ break;
+ bh = bh->b_this_page;
+ }
if (!*err)
*err = block_commit_write(pagep[0], from, from + replaced_size);
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index dd4f37e2f18f..d534e589949b 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -186,7 +186,7 @@ static struct ext4_new_flex_group_data *alloc_flex_gd(unsigned long flexbg_size)
if (flex_gd == NULL)
goto out3;
- if (flexbg_size >= UINT_MAX / sizeof(struct ext4_new_flex_group_data))
+ if (flexbg_size >= UINT_MAX / sizeof(struct ext4_new_group_data))
goto out2;
flex_gd->count = flexbg_size;
diff --git a/fs/hpfs/namei.c b/fs/hpfs/namei.c
index 0642cafaab34..12da295759f7 100644
--- a/fs/hpfs/namei.c
+++ b/fs/hpfs/namei.c
@@ -377,12 +377,11 @@ static int hpfs_unlink(struct inode *dir, struct dentry *dentry)
struct inode *inode = dentry->d_inode;
dnode_secno dno;
int r;
- int rep = 0;
int err;
hpfs_lock(dir->i_sb);
hpfs_adjust_length(name, &len);
-again:
+
err = -ENOENT;
de = map_dirent(dir, hpfs_i(dir)->i_dno, name, len, &dno, &qbh);
if (!de)
@@ -402,33 +401,9 @@ again:
hpfs_error(dir->i_sb, "there was error when removing dirent");
err = -EFSERROR;
break;
- case 2: /* no space for deleting, try to truncate file */
-
+ case 2: /* no space for deleting */
err = -ENOSPC;
- if (rep++)
- break;
-
- dentry_unhash(dentry);
- if (!d_unhashed(dentry)) {
- hpfs_unlock(dir->i_sb);
- return -ENOSPC;
- }
- if (generic_permission(inode, MAY_WRITE) ||
- !S_ISREG(inode->i_mode) ||
- get_write_access(inode)) {
- d_rehash(dentry);
- } else {
- struct iattr newattrs;
- /*pr_info("truncating file before delete.\n");*/
- newattrs.ia_size = 0;
- newattrs.ia_valid = ATTR_SIZE | ATTR_CTIME;
- err = notify_change(dentry, &newattrs, NULL);
- put_write_access(inode);
- if (!err)
- goto again;
- }
- hpfs_unlock(dir->i_sb);
- return -ENOSPC;
+ break;
default:
drop_nlink(inode);
err = 0;
diff --git a/fs/jffs2/README.Locking b/fs/jffs2/README.Locking
index 3ea36554107f..8918ac905a3b 100644
--- a/fs/jffs2/README.Locking
+++ b/fs/jffs2/README.Locking
@@ -2,10 +2,6 @@
JFFS2 LOCKING DOCUMENTATION
---------------------------
-At least theoretically, JFFS2 does not require the Big Kernel Lock
-(BKL), which was always helpfully obtained for it by Linux 2.4 VFS
-code. It has its own locking, as described below.
-
This document attempts to describe the existing locking rules for
JFFS2. It is not expected to remain perfectly up to date, but ought to
be fairly close.
@@ -69,6 +65,7 @@ Ordering constraints:
any f->sem held.
2. Never attempt to lock two file mutexes in one thread.
No ordering rules have been made for doing so.
+ 3. Never lock a page cache page with f->sem held.
erase_completion_lock spinlock
diff --git a/fs/jffs2/build.c b/fs/jffs2/build.c
index a3750f902adc..c1f04947d7dc 100644
--- a/fs/jffs2/build.c
+++ b/fs/jffs2/build.c
@@ -49,7 +49,8 @@ next_inode(int *i, struct jffs2_inode_cache *ic, struct jffs2_sb_info *c)
static void jffs2_build_inode_pass1(struct jffs2_sb_info *c,
- struct jffs2_inode_cache *ic)
+ struct jffs2_inode_cache *ic,
+ int *dir_hardlinks)
{
struct jffs2_full_dirent *fd;
@@ -68,19 +69,21 @@ static void jffs2_build_inode_pass1(struct jffs2_sb_info *c,
dbg_fsbuild("child \"%s\" (ino #%u) of dir ino #%u doesn't exist!\n",
fd->name, fd->ino, ic->ino);
jffs2_mark_node_obsolete(c, fd->raw);
+ /* Clear the ic/raw union so it doesn't cause problems later. */
+ fd->ic = NULL;
continue;
}
+ /* From this point, fd->raw is no longer used so we can set fd->ic */
+ fd->ic = child_ic;
+ child_ic->pino_nlink++;
+ /* If we appear (at this stage) to have hard-linked directories,
+ * set a flag to trigger a scan later */
if (fd->type == DT_DIR) {
- if (child_ic->pino_nlink) {
- JFFS2_ERROR("child dir \"%s\" (ino #%u) of dir ino #%u appears to be a hard link\n",
- fd->name, fd->ino, ic->ino);
- /* TODO: What do we do about it? */
- } else {
- child_ic->pino_nlink = ic->ino;
- }
- } else
- child_ic->pino_nlink++;
+ child_ic->flags |= INO_FLAGS_IS_DIR;
+ if (child_ic->pino_nlink > 1)
+ *dir_hardlinks = 1;
+ }
dbg_fsbuild("increased nlink for child \"%s\" (ino #%u)\n", fd->name, fd->ino);
/* Can't free scan_dents so far. We might need them in pass 2 */
@@ -94,8 +97,7 @@ static void jffs2_build_inode_pass1(struct jffs2_sb_info *c,
*/
static int jffs2_build_filesystem(struct jffs2_sb_info *c)
{
- int ret;
- int i;
+ int ret, i, dir_hardlinks = 0;
struct jffs2_inode_cache *ic;
struct jffs2_full_dirent *fd;
struct jffs2_full_dirent *dead_fds = NULL;
@@ -119,7 +121,7 @@ static int jffs2_build_filesystem(struct jffs2_sb_info *c)
/* Now scan the directory tree, increasing nlink according to every dirent found. */
for_each_inode(i, c, ic) {
if (ic->scan_dents) {
- jffs2_build_inode_pass1(c, ic);
+ jffs2_build_inode_pass1(c, ic, &dir_hardlinks);
cond_resched();
}
}
@@ -155,6 +157,20 @@ static int jffs2_build_filesystem(struct jffs2_sb_info *c)
}
dbg_fsbuild("pass 2a complete\n");
+
+ if (dir_hardlinks) {
+ /* If we detected directory hardlinks earlier, *hopefully*
+ * they are gone now because some of the links were from
+ * dead directories which still had some old dirents lying
+ * around and not yet garbage-collected, but which have
+ * been discarded above. So clear the pino_nlink field
+ * in each directory, so that the final scan below can
+ * print appropriate warnings. */
+ for_each_inode(i, c, ic) {
+ if (ic->flags & INO_FLAGS_IS_DIR)
+ ic->pino_nlink = 0;
+ }
+ }
dbg_fsbuild("freeing temporary data structures\n");
/* Finally, we can scan again and free the dirent structs */
@@ -162,6 +178,33 @@ static int jffs2_build_filesystem(struct jffs2_sb_info *c)
while(ic->scan_dents) {
fd = ic->scan_dents;
ic->scan_dents = fd->next;
+ /* We do use the pino_nlink field to count nlink of
+ * directories during fs build, so set it to the
+ * parent ino# now. Now that there's hopefully only
+ * one. */
+ if (fd->type == DT_DIR) {
+ if (!fd->ic) {
+ /* We'll have complained about it and marked the coresponding
+ raw node obsolete already. Just skip it. */
+ continue;
+ }
+
+ /* We *have* to have set this in jffs2_build_inode_pass1() */
+ BUG_ON(!(fd->ic->flags & INO_FLAGS_IS_DIR));
+
+ /* We clear ic->pino_nlink ∀ directories' ic *only* if dir_hardlinks
+ * is set. Otherwise, we know this should never trigger anyway, so
+ * we don't do the check. And ic->pino_nlink still contains the nlink
+ * value (which is 1). */
+ if (dir_hardlinks && fd->ic->pino_nlink) {
+ JFFS2_ERROR("child dir \"%s\" (ino #%u) of dir ino #%u is also hard linked from dir ino #%u\n",
+ fd->name, fd->ino, ic->ino, fd->ic->pino_nlink);
+ /* Should we unlink it from its previous parent? */
+ }
+
+ /* For directories, ic->pino_nlink holds that parent inode # */
+ fd->ic->pino_nlink = ic->ino;
+ }
jffs2_free_full_dirent(fd);
}
ic->scan_dents = NULL;
@@ -240,11 +283,7 @@ static void jffs2_build_remove_unlinked_inode(struct jffs2_sb_info *c,
/* Reduce nlink of the child. If it's now zero, stick it on the
dead_fds list to be cleaned up later. Else just free the fd */
-
- if (fd->type == DT_DIR)
- child_ic->pino_nlink = 0;
- else
- child_ic->pino_nlink--;
+ child_ic->pino_nlink--;
if (!child_ic->pino_nlink) {
dbg_fsbuild("inode #%u (\"%s\") now has no links; adding to dead_fds list.\n",
diff --git a/fs/jffs2/file.c b/fs/jffs2/file.c
index 64989ca9ba90..129eccb4c5a8 100644
--- a/fs/jffs2/file.c
+++ b/fs/jffs2/file.c
@@ -139,39 +139,33 @@ static int jffs2_write_begin(struct file *filp, struct address_space *mapping,
struct page *pg;
struct inode *inode = mapping->host;
struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode);
- struct jffs2_sb_info *c = JFFS2_SB_INFO(inode->i_sb);
- struct jffs2_raw_inode ri;
- uint32_t alloc_len = 0;
pgoff_t index = pos >> PAGE_CACHE_SHIFT;
uint32_t pageofs = index << PAGE_CACHE_SHIFT;
int ret = 0;
- jffs2_dbg(1, "%s()\n", __func__);
-
- if (pageofs > inode->i_size) {
- ret = jffs2_reserve_space(c, sizeof(ri), &alloc_len,
- ALLOC_NORMAL, JFFS2_SUMMARY_INODE_SIZE);
- if (ret)
- return ret;
- }
-
- mutex_lock(&f->sem);
pg = grab_cache_page_write_begin(mapping, index, flags);
- if (!pg) {
- if (alloc_len)
- jffs2_complete_reservation(c);
- mutex_unlock(&f->sem);
+ if (!pg)
return -ENOMEM;
- }
*pagep = pg;
- if (alloc_len) {
+ jffs2_dbg(1, "%s()\n", __func__);
+
+ if (pageofs > inode->i_size) {
/* Make new hole frag from old EOF to new page */
+ struct jffs2_sb_info *c = JFFS2_SB_INFO(inode->i_sb);
+ struct jffs2_raw_inode ri;
struct jffs2_full_dnode *fn;
+ uint32_t alloc_len;
jffs2_dbg(1, "Writing new hole frag 0x%x-0x%x between current EOF and new page\n",
(unsigned int)inode->i_size, pageofs);
+ ret = jffs2_reserve_space(c, sizeof(ri), &alloc_len,
+ ALLOC_NORMAL, JFFS2_SUMMARY_INODE_SIZE);
+ if (ret)
+ goto out_page;
+
+ mutex_lock(&f->sem);
memset(&ri, 0, sizeof(ri));
ri.magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
@@ -198,6 +192,7 @@ static int jffs2_write_begin(struct file *filp, struct address_space *mapping,
if (IS_ERR(fn)) {
ret = PTR_ERR(fn);
jffs2_complete_reservation(c);
+ mutex_unlock(&f->sem);
goto out_page;
}
ret = jffs2_add_full_dnode_to_inode(c, f, fn);
@@ -212,10 +207,12 @@ static int jffs2_write_begin(struct file *filp, struct address_space *mapping,
jffs2_mark_node_obsolete(c, fn->raw);
jffs2_free_full_dnode(fn);
jffs2_complete_reservation(c);
+ mutex_unlock(&f->sem);
goto out_page;
}
jffs2_complete_reservation(c);
inode->i_size = pageofs;
+ mutex_unlock(&f->sem);
}
/*
@@ -224,18 +221,18 @@ static int jffs2_write_begin(struct file *filp, struct address_space *mapping,
* case of a short-copy.
*/
if (!PageUptodate(pg)) {
+ mutex_lock(&f->sem);
ret = jffs2_do_readpage_nolock(inode, pg);
+ mutex_unlock(&f->sem);
if (ret)
goto out_page;
}
- mutex_unlock(&f->sem);
jffs2_dbg(1, "end write_begin(). pg->flags %lx\n", pg->flags);
return ret;
out_page:
unlock_page(pg);
page_cache_release(pg);
- mutex_unlock(&f->sem);
return ret;
}
diff --git a/fs/jffs2/gc.c b/fs/jffs2/gc.c
index 5a2dec2b064c..95d5880a63ee 100644
--- a/fs/jffs2/gc.c
+++ b/fs/jffs2/gc.c
@@ -1296,14 +1296,17 @@ static int jffs2_garbage_collect_dnode(struct jffs2_sb_info *c, struct jffs2_era
BUG_ON(start > orig_start);
}
- /* First, use readpage() to read the appropriate page into the page cache */
- /* Q: What happens if we actually try to GC the _same_ page for which commit_write()
- * triggered garbage collection in the first place?
- * A: I _think_ it's OK. read_cache_page shouldn't deadlock, we'll write out the
- * page OK. We'll actually write it out again in commit_write, which is a little
- * suboptimal, but at least we're correct.
- */
+ /* The rules state that we must obtain the page lock *before* f->sem, so
+ * drop f->sem temporarily. Since we also hold c->alloc_sem, nothing's
+ * actually going to *change* so we're safe; we only allow reading.
+ *
+ * It is important to note that jffs2_write_begin() will ensure that its
+ * page is marked Uptodate before allocating space. That means that if we
+ * end up here trying to GC the *same* page that jffs2_write_begin() is
+ * trying to write out, read_cache_page() will not deadlock. */
+ mutex_unlock(&f->sem);
pg_ptr = jffs2_gc_fetch_page(c, f, start, &pg);
+ mutex_lock(&f->sem);
if (IS_ERR(pg_ptr)) {
pr_warn("read_cache_page() returned error: %ld\n",
diff --git a/fs/jffs2/nodelist.h b/fs/jffs2/nodelist.h
index fa35ff79ab35..0637271f3770 100644
--- a/fs/jffs2/nodelist.h
+++ b/fs/jffs2/nodelist.h
@@ -194,6 +194,7 @@ struct jffs2_inode_cache {
#define INO_STATE_CLEARING 6 /* In clear_inode() */
#define INO_FLAGS_XATTR_CHECKED 0x01 /* has no duplicate xattr_ref */
+#define INO_FLAGS_IS_DIR 0x02 /* is a directory */
#define RAWNODE_CLASS_INODE_CACHE 0
#define RAWNODE_CLASS_XATTR_DATUM 1
@@ -249,7 +250,10 @@ struct jffs2_readinode_info
struct jffs2_full_dirent
{
- struct jffs2_raw_node_ref *raw;
+ union {
+ struct jffs2_raw_node_ref *raw;
+ struct jffs2_inode_cache *ic; /* Just during part of build */
+ };
struct jffs2_full_dirent *next;
uint32_t version;
uint32_t ino; /* == zero for unlink */
diff --git a/fs/namei.c b/fs/namei.c
index 8a0c3d9d8298..34f8224be4ed 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -3108,6 +3108,10 @@ opened:
goto exit_fput;
}
out:
+ if (unlikely(error > 0)) {
+ WARN_ON(1);
+ error = -EINVAL;
+ }
if (got_write)
mnt_drop_write(nd->path.mnt);
path_put(&save_parent);
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index cdbc0599664d..864b3214cc89 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -2243,9 +2243,9 @@ static int _nfs4_open_and_get_state(struct nfs4_opendata *opendata,
dentry = d_add_unique(dentry, igrab(state->inode));
if (dentry == NULL) {
dentry = opendata->dentry;
- } else if (dentry != ctx->dentry) {
+ } else {
dput(ctx->dentry);
- ctx->dentry = dget(dentry);
+ ctx->dentry = dentry;
}
nfs_set_verifier(dentry,
nfs_save_change_attribute(opendata->dir->d_inode));
diff --git a/include/linux/ata.h b/include/linux/ata.h
index f2f4d8da97c0..f7ff6554a354 100644
--- a/include/linux/ata.h
+++ b/include/linux/ata.h
@@ -484,8 +484,8 @@ enum ata_tf_protocols {
};
enum ata_ioctls {
- ATA_IOC_GET_IO32 = 0x309,
- ATA_IOC_SET_IO32 = 0x324,
+ ATA_IOC_GET_IO32 = 0x309, /* HDIO_GET_32BIT */
+ ATA_IOC_SET_IO32 = 0x324, /* HDIO_SET_32BIT */
};
/* core structures */
diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index da293bf86575..8f6e7b2d667f 100644
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -138,7 +138,7 @@ void ftrace_likely_update(struct ftrace_branch_data *f, int val, int expect);
*/
#define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) )
#define __trace_if(cond) \
- if (__builtin_constant_p((cond)) ? !!(cond) : \
+ if (__builtin_constant_p(!!(cond)) ? !!(cond) : \
({ \
int ______r; \
static struct ftrace_branch_data \
diff --git a/include/linux/efi.h b/include/linux/efi.h
index b3fac7c1656c..8cb09c9d81ef 100644
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -1143,7 +1143,10 @@ int efivar_entry_iter(int (*func)(struct efivar_entry *, void *),
struct efivar_entry *efivar_entry_find(efi_char16_t *name, efi_guid_t guid,
struct list_head *head, bool remove);
-bool efivar_validate(efi_char16_t *var_name, u8 *data, unsigned long len);
+bool efivar_validate(efi_guid_t vendor, efi_char16_t *var_name, u8 *data,
+ unsigned long data_size);
+bool efivar_variable_is_removable(efi_guid_t vendor, const char *name,
+ size_t len);
extern struct work_struct efivar_work;
void efivar_run_worker(void);
diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h
index f3d5d11b8871..9cc2240d7e52 100644
--- a/include/linux/ipv6.h
+++ b/include/linux/ipv6.h
@@ -29,6 +29,7 @@ struct ipv6_devconf {
__s32 max_desync_factor;
__s32 max_addresses;
__s32 accept_ra_defrtr;
+ __s32 accept_ra_min_hop_limit;
__s32 accept_ra_pinfo;
#ifdef CONFIG_IPV6_ROUTER_PREF
__s32 accept_ra_rtr_pref;
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 714274450c07..bd83b8e83cfe 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -714,7 +714,7 @@ struct ata_device {
union {
u16 id[ATA_ID_WORDS]; /* IDENTIFY xxx DEVICE data */
u32 gscr[SATA_PMP_GSCR_DWORDS]; /* PMP GSCR block */
- };
+ } ____cacheline_aligned;
/* DEVSLP Timing Variables from Identify Device Data Log */
u8 devslp_timing[ATA_LOG_DEVSLP_SIZE];
diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index e30f6059ecd6..7faf70d9e869 100644
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -577,9 +577,7 @@ static inline int nfs3_proc_setacls(struct inode *inode, struct posix_acl *acl,
static inline loff_t nfs_size_to_loff_t(__u64 size)
{
- if (size > (__u64) OFFSET_MAX - 1)
- return OFFSET_MAX - 1;
- return (loff_t) size;
+ return min_t(u64, size, OFFSET_MAX);
}
static inline ino_t
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 010bc80be91c..629f519224ee 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -169,6 +169,7 @@ struct sk_buff;
#else
#define MAX_SKB_FRAGS (65536/PAGE_SIZE + 1)
#endif
+extern int sysctl_max_skb_frags;
typedef struct skb_frag_struct skb_frag_t;
@@ -1670,6 +1671,30 @@ static inline void skb_reserve(struct sk_buff *skb, int len)
skb->tail += len;
}
+/**
+ * skb_tailroom_reserve - adjust reserved_tailroom
+ * @skb: buffer to alter
+ * @mtu: maximum amount of headlen permitted
+ * @needed_tailroom: minimum amount of reserved_tailroom
+ *
+ * Set reserved_tailroom so that headlen can be as large as possible but
+ * not larger than mtu and tailroom cannot be smaller than
+ * needed_tailroom.
+ * The required headroom should already have been reserved before using
+ * this function.
+ */
+static inline void skb_tailroom_reserve(struct sk_buff *skb, unsigned int mtu,
+ unsigned int needed_tailroom)
+{
+ SKB_LINEAR_ASSERT(skb);
+ if (mtu < skb_tailroom(skb) - needed_tailroom)
+ /* use at most mtu */
+ skb->reserved_tailroom = skb_tailroom(skb) - mtu;
+ else
+ /* use up to all available space */
+ skb->reserved_tailroom = needed_tailroom;
+}
+
static inline void skb_reset_inner_headers(struct sk_buff *skb)
{
skb->inner_mac_header = skb->mac_header;
diff --git a/include/linux/tracepoint.h b/include/linux/tracepoint.h
index 2e2a5f7717e5..acc120a637ac 100644
--- a/include/linux/tracepoint.h
+++ b/include/linux/tracepoint.h
@@ -14,8 +14,11 @@
* See the file COPYING for more details.
*/
+#include <linux/smp.h>
#include <linux/errno.h>
#include <linux/types.h>
+#include <linux/percpu.h>
+#include <linux/cpumask.h>
#include <linux/rcupdate.h>
#include <linux/static_key.h>
@@ -264,15 +267,19 @@ extern void syscall_unregfunc(void);
* "void *__data, proto" as the callback prototype.
*/
#define DECLARE_TRACE_NOARGS(name) \
- __DECLARE_TRACE(name, void, , 1, void *__data, __data)
+ __DECLARE_TRACE(name, void, , \
+ cpu_online(raw_smp_processor_id()), \
+ void *__data, __data)
#define DECLARE_TRACE(name, proto, args) \
- __DECLARE_TRACE(name, PARAMS(proto), PARAMS(args), 1, \
- PARAMS(void *__data, proto), \
- PARAMS(__data, args))
+ __DECLARE_TRACE(name, PARAMS(proto), PARAMS(args), \
+ cpu_online(raw_smp_processor_id()), \
+ PARAMS(void *__data, proto), \
+ PARAMS(__data, args))
#define DECLARE_TRACE_CONDITION(name, proto, args, cond) \
- __DECLARE_TRACE(name, PARAMS(proto), PARAMS(args), PARAMS(cond), \
+ __DECLARE_TRACE(name, PARAMS(proto), PARAMS(args), \
+ cpu_online(raw_smp_processor_id()) && (PARAMS(cond)), \
PARAMS(void *__data, proto), \
PARAMS(__data, args))
diff --git a/include/linux/ucs2_string.h b/include/linux/ucs2_string.h
index cbb20afdbc01..bb679b48f408 100644
--- a/include/linux/ucs2_string.h
+++ b/include/linux/ucs2_string.h
@@ -11,4 +11,8 @@ unsigned long ucs2_strlen(const ucs2_char_t *s);
unsigned long ucs2_strsize(const ucs2_char_t *data, unsigned long maxlength);
int ucs2_strncmp(const ucs2_char_t *a, const ucs2_char_t *b, size_t len);
+unsigned long ucs2_utf8size(const ucs2_char_t *src);
+unsigned long ucs2_as_utf8(u8 *dest, const ucs2_char_t *src,
+ unsigned long maxlength);
+
#endif /* _LINUX_UCS2_STRING_H_ */
diff --git a/include/net/ip_fib.h b/include/net/ip_fib.h
index 699c4046a8cb..fac652dc6852 100644
--- a/include/net/ip_fib.h
+++ b/include/net/ip_fib.h
@@ -59,6 +59,7 @@ struct fib_nh_exception {
struct rtable __rcu *fnhe_rth_input;
struct rtable __rcu *fnhe_rth_output;
unsigned long fnhe_stamp;
+ struct rcu_head rcu;
};
struct fnhe_hash_bucket {
diff --git a/include/net/iw_handler.h b/include/net/iw_handler.h
index a830b01baba4..e8aa72eaded5 100644
--- a/include/net/iw_handler.h
+++ b/include/net/iw_handler.h
@@ -439,6 +439,12 @@ int dev_get_wireless_info(char *buffer, char **start, off_t offset, int length);
/* Send a single event to user space */
void wireless_send_event(struct net_device *dev, unsigned int cmd,
union iwreq_data *wrqu, const char *extra);
+#ifdef CONFIG_WEXT_CORE
+/* flush all previous wext events - if work is done from netdev notifiers */
+void wireless_nlevent_flush(void);
+#else
+static inline void wireless_nlevent_flush(void) {}
+#endif
/* We may need a function to send a stream of events to user space.
* More on that later... */
diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
index 0c37d70a4f57..e193e5d5ae58 100644
--- a/include/target/target_core_base.h
+++ b/include/target/target_core_base.h
@@ -533,6 +533,8 @@ struct se_cmd {
#define CMD_T_DEV_ACTIVE (1 << 7)
#define CMD_T_REQUEST_STOP (1 << 8)
#define CMD_T_BUSY (1 << 9)
+#define CMD_T_TAS (1 << 10)
+#define CMD_T_FABRIC_STOP (1 << 11)
spinlock_t t_state_lock;
struct completion t_transport_stop_comp;
diff --git a/include/uapi/linux/ipv6.h b/include/uapi/linux/ipv6.h
index 593b0e32d956..5985f28e98b3 100644
--- a/include/uapi/linux/ipv6.h
+++ b/include/uapi/linux/ipv6.h
@@ -163,6 +163,12 @@ enum {
DEVCONF_MLDV1_UNSOLICITED_REPORT_INTERVAL,
DEVCONF_MLDV2_UNSOLICITED_REPORT_INTERVAL,
DEVCONF_SUPPRESS_FRAG_NDISC,
+ DEVCONF_ACCEPT_RA_FROM_LOCAL,
+ DEVCONF_USE_OPTIMISTIC,
+ DEVCONF_ACCEPT_RA_MTU,
+ DEVCONF_STABLE_SECRET,
+ DEVCONF_USE_OIF_ADDRS_ONLY,
+ DEVCONF_ACCEPT_RA_MIN_HOP_LIMIT,
DEVCONF_MAX
};
diff --git a/kernel/resource.c b/kernel/resource.c
index 3c2237ac32db..db48bab5ea18 100644
--- a/kernel/resource.c
+++ b/kernel/resource.c
@@ -957,9 +957,10 @@ struct resource * __request_region(struct resource *parent,
if (!conflict)
break;
if (conflict != parent) {
- parent = conflict;
- if (!(conflict->flags & IORESOURCE_BUSY))
+ if (!(conflict->flags & IORESOURCE_BUSY)) {
+ parent = conflict;
continue;
+ }
}
if (conflict->flags & flags & IORESOURCE_MUXED) {
add_wait_queue(&muxed_resource_wait, &wait);
diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
index 41c56b7e882c..ecf3e9fb8ee4 100644
--- a/kernel/trace/trace_events.c
+++ b/kernel/trace/trace_events.c
@@ -642,7 +642,8 @@ t_next(struct seq_file *m, void *v, loff_t *pos)
* The ftrace subsystem is for showing formats only.
* They can not be enabled or disabled via the event files.
*/
- if (call->class && call->class->reg)
+ if (call->class && call->class->reg &&
+ !(call->flags & TRACE_EVENT_FL_IGNORE_ENABLE))
return file;
}
diff --git a/lib/ucs2_string.c b/lib/ucs2_string.c
index 6f500ef2301d..f0b323abb4c6 100644
--- a/lib/ucs2_string.c
+++ b/lib/ucs2_string.c
@@ -49,3 +49,65 @@ ucs2_strncmp(const ucs2_char_t *a, const ucs2_char_t *b, size_t len)
}
}
EXPORT_SYMBOL(ucs2_strncmp);
+
+unsigned long
+ucs2_utf8size(const ucs2_char_t *src)
+{
+ unsigned long i;
+ unsigned long j = 0;
+
+ for (i = 0; i < ucs2_strlen(src); i++) {
+ u16 c = src[i];
+
+ if (c >= 0x800)
+ j += 3;
+ else if (c >= 0x80)
+ j += 2;
+ else
+ j += 1;
+ }
+
+ return j;
+}
+EXPORT_SYMBOL(ucs2_utf8size);
+
+/*
+ * copy at most maxlength bytes of whole utf8 characters to dest from the
+ * ucs2 string src.
+ *
+ * The return value is the number of characters copied, not including the
+ * final NUL character.
+ */
+unsigned long
+ucs2_as_utf8(u8 *dest, const ucs2_char_t *src, unsigned long maxlength)
+{
+ unsigned int i;
+ unsigned long j = 0;
+ unsigned long limit = ucs2_strnlen(src, maxlength);
+
+ for (i = 0; maxlength && i < limit; i++) {
+ u16 c = src[i];
+
+ if (c >= 0x800) {
+ if (maxlength < 3)
+ break;
+ maxlength -= 3;
+ dest[j++] = 0xe0 | (c & 0xf000) >> 12;
+ dest[j++] = 0x80 | (c & 0x0fc0) >> 6;
+ dest[j++] = 0x80 | (c & 0x003f);
+ } else if (c >= 0x80) {
+ if (maxlength < 2)
+ break;
+ maxlength -= 2;
+ dest[j++] = 0xc0 | (c & 0x7c0) >> 6;
+ dest[j++] = 0x80 | (c & 0x03f);
+ } else {
+ maxlength -= 1;
+ dest[j++] = c & 0x7f;
+ }
+ }
+ if (maxlength)
+ dest[j] = '\0';
+ return j;
+}
+EXPORT_SYMBOL(ucs2_as_utf8);
diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c
index 6b15183a68c8..f2ea1a093800 100644
--- a/net/ceph/messenger.c
+++ b/net/ceph/messenger.c
@@ -2285,7 +2285,7 @@ static int read_partial_message(struct ceph_connection *con)
con->in_base_pos = -front_len - middle_len - data_len -
sizeof(m->footer);
con->in_tag = CEPH_MSGR_TAG_READY;
- return 0;
+ return 1;
} else if ((s64)seq - (s64)con->in_seq > 1) {
pr_err("read_partial_message bad seq %lld expected %lld\n",
seq, con->in_seq + 1);
@@ -2318,7 +2318,7 @@ static int read_partial_message(struct ceph_connection *con)
sizeof(m->footer);
con->in_tag = CEPH_MSGR_TAG_READY;
con->in_seq++;
- return 0;
+ return 1;
}
BUG_ON(!con->in_msg);
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 7e31a99e0ed9..8c5409067930 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -77,6 +77,8 @@
struct kmem_cache *skbuff_head_cache __read_mostly;
static struct kmem_cache *skbuff_fclone_cache __read_mostly;
+int sysctl_max_skb_frags __read_mostly = MAX_SKB_FRAGS;
+EXPORT_SYMBOL(sysctl_max_skb_frags);
/**
* skb_panic - private function for out-of-line support
diff --git a/net/core/sysctl_net_core.c b/net/core/sysctl_net_core.c
index e731c96eac4b..cd386d2fd039 100644
--- a/net/core/sysctl_net_core.c
+++ b/net/core/sysctl_net_core.c
@@ -27,6 +27,7 @@ static int one = 1;
static int ushort_max = USHRT_MAX;
static int min_sndbuf = SOCK_MIN_SNDBUF;
static int min_rcvbuf = SOCK_MIN_RCVBUF;
+static int max_skb_frags = MAX_SKB_FRAGS;
#ifdef CONFIG_RPS
static int rps_sock_flow_sysctl(struct ctl_table *table, int write,
@@ -363,6 +364,15 @@ static struct ctl_table net_core_table[] = {
.mode = 0644,
.proc_handler = proc_dointvec
},
+ {
+ .procname = "max_skb_frags",
+ .data = &sysctl_max_skb_frags,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_minmax,
+ .extra1 = &one,
+ .extra2 = &max_skb_frags,
+ },
{ }
};
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index e9449376b58e..aa4b9990dd7a 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -1798,7 +1798,7 @@ static int inet_netconf_get_devconf(struct sk_buff *in_skb,
if (err < 0)
goto errout;
- err = EINVAL;
+ err = -EINVAL;
if (!tb[NETCONFA_IFINDEX])
goto errout;
diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
index 719c3d707327..727447c17954 100644
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -352,9 +352,8 @@ static struct sk_buff *igmpv3_newpack(struct net_device *dev, unsigned int mtu)
skb_dst_set(skb, &rt->dst);
skb->dev = dev;
- skb->reserved_tailroom = skb_end_offset(skb) -
- min(mtu, skb_end_offset(skb));
skb_reserve(skb, hlen);
+ skb_tailroom_reserve(skb, mtu, tlen);
skb_reset_network_header(skb);
pip = ip_hdr(skb);
diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c
index 7aa584c36c15..c7ec866adac9 100644
--- a/net/ipv4/ip_sockglue.c
+++ b/net/ipv4/ip_sockglue.c
@@ -216,6 +216,8 @@ int ip_cmsg_send(struct net *net, struct msghdr *msg, struct ipcm_cookie *ipc,
switch (cmsg->cmsg_type) {
case IP_RETOPTS:
err = cmsg->cmsg_len - CMSG_ALIGN(sizeof(struct cmsghdr));
+
+ /* Our caller is responsible for freeing ipc->opt */
err = ip_options_get(net, &ipc->opt, CMSG_DATA(cmsg),
err < 40 ? err : 40);
if (err)
diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c
index 30d0a64be413..9c68e94cd66d 100644
--- a/net/ipv4/ping.c
+++ b/net/ipv4/ping.c
@@ -748,8 +748,10 @@ static int ping_v4_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *m
if (msg->msg_controllen) {
err = ip_cmsg_send(sock_net(sk), msg, &ipc, false);
- if (err)
+ if (unlikely(err)) {
+ kfree(ipc.opt);
return err;
+ }
if (ipc.opt)
free = 1;
}
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index 2c65160565e1..29ad1c63e2ea 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -525,8 +525,10 @@ static int raw_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
if (msg->msg_controllen) {
err = ip_cmsg_send(sock_net(sk), msg, &ipc, false);
- if (err)
+ if (unlikely(err)) {
+ kfree(ipc.opt);
goto out;
+ }
if (ipc.opt)
free = 1;
}
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index d53aee9cbfe2..5df7ed8c62d9 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -125,6 +125,7 @@ static int ip_rt_mtu_expires __read_mostly = 10 * 60 * HZ;
static int ip_rt_min_pmtu __read_mostly = 512 + 20 + 20;
static int ip_rt_min_advmss __read_mostly = 256;
+static int ip_rt_gc_timeout __read_mostly = RT_GC_TIMEOUT;
/*
* Interface to generic destination cache.
*/
@@ -754,7 +755,7 @@ static void __ip_do_redirect(struct rtable *rt, struct sk_buff *skb, struct flow
struct fib_nh *nh = &FIB_RES_NH(res);
update_or_create_fnhe(nh, fl4->daddr, new_gw,
- 0, 0);
+ 0, jiffies + ip_rt_gc_timeout);
}
if (kill_route)
rt->dst.obsolete = DST_OBSOLETE_KILL;
@@ -1526,6 +1527,36 @@ static void ip_handle_martian_source(struct net_device *dev,
#endif
}
+static void ip_del_fnhe(struct fib_nh *nh, __be32 daddr)
+{
+ struct fnhe_hash_bucket *hash;
+ struct fib_nh_exception *fnhe, __rcu **fnhe_p;
+ u32 hval = fnhe_hashfun(daddr);
+
+ spin_lock_bh(&fnhe_lock);
+
+ hash = rcu_dereference_protected(nh->nh_exceptions,
+ lockdep_is_held(&fnhe_lock));
+ hash += hval;
+
+ fnhe_p = &hash->chain;
+ fnhe = rcu_dereference_protected(*fnhe_p, lockdep_is_held(&fnhe_lock));
+ while (fnhe) {
+ if (fnhe->fnhe_daddr == daddr) {
+ rcu_assign_pointer(*fnhe_p, rcu_dereference_protected(
+ fnhe->fnhe_next, lockdep_is_held(&fnhe_lock)));
+ fnhe_flush_routes(fnhe);
+ kfree_rcu(fnhe, rcu);
+ break;
+ }
+ fnhe_p = &fnhe->fnhe_next;
+ fnhe = rcu_dereference_protected(fnhe->fnhe_next,
+ lockdep_is_held(&fnhe_lock));
+ }
+
+ spin_unlock_bh(&fnhe_lock);
+}
+
/* called in rcu_read_lock() section */
static int __mkroute_input(struct sk_buff *skb,
const struct fib_result *res,
@@ -1580,11 +1611,20 @@ static int __mkroute_input(struct sk_buff *skb,
fnhe = find_exception(&FIB_RES_NH(*res), daddr);
if (do_cache) {
- if (fnhe != NULL)
+ if (fnhe) {
rth = rcu_dereference(fnhe->fnhe_rth_input);
- else
- rth = rcu_dereference(FIB_RES_NH(*res).nh_rth_input);
+ if (rth && rth->dst.expires &&
+ time_after(jiffies, rth->dst.expires)) {
+ ip_del_fnhe(&FIB_RES_NH(*res), daddr);
+ fnhe = NULL;
+ } else {
+ goto rt_cache;
+ }
+ }
+
+ rth = rcu_dereference(FIB_RES_NH(*res).nh_rth_input);
+rt_cache:
if (rt_cache_valid(rth)) {
skb_dst_set_noref(skb, &rth->dst);
goto out;
@@ -1935,19 +1975,29 @@ static struct rtable *__mkroute_output(const struct fib_result *res,
struct fib_nh *nh = &FIB_RES_NH(*res);
fnhe = find_exception(nh, fl4->daddr);
- if (fnhe)
+ if (fnhe) {
prth = &fnhe->fnhe_rth_output;
- else {
- if (unlikely(fl4->flowi4_flags &
- FLOWI_FLAG_KNOWN_NH &&
- !(nh->nh_gw &&
- nh->nh_scope == RT_SCOPE_LINK))) {
- do_cache = false;
- goto add;
+ rth = rcu_dereference(*prth);
+ if (rth && rth->dst.expires &&
+ time_after(jiffies, rth->dst.expires)) {
+ ip_del_fnhe(nh, fl4->daddr);
+ fnhe = NULL;
+ } else {
+ goto rt_cache;
}
- prth = __this_cpu_ptr(nh->nh_pcpu_rth_output);
}
+
+ if (unlikely(fl4->flowi4_flags &
+ FLOWI_FLAG_KNOWN_NH &&
+ !(nh->nh_gw &&
+ nh->nh_scope == RT_SCOPE_LINK))) {
+ do_cache = false;
+ goto add;
+ }
+ prth = raw_cpu_ptr(nh->nh_pcpu_rth_output);
rth = rcu_dereference(*prth);
+
+rt_cache:
if (rt_cache_valid(rth)) {
dst_hold(&rth->dst);
return rth;
@@ -2494,7 +2544,6 @@ void ip_rt_multicast_event(struct in_device *in_dev)
}
#ifdef CONFIG_SYSCTL
-static int ip_rt_gc_timeout __read_mostly = RT_GC_TIMEOUT;
static int ip_rt_gc_interval __read_mostly = 60 * HZ;
static int ip_rt_gc_min_interval __read_mostly = HZ / 2;
static int ip_rt_gc_elasticity __read_mostly = 8;
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 9c4f0d2f2892..9ee5a4bbb289 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -929,7 +929,7 @@ new_segment:
i = skb_shinfo(skb)->nr_frags;
can_coalesce = skb_can_coalesce(skb, i, page, offset);
- if (!can_coalesce && i >= MAX_SKB_FRAGS) {
+ if (!can_coalesce && i >= sysctl_max_skb_frags) {
tcp_mark_push(tp, skb);
goto new_segment;
}
@@ -1213,7 +1213,7 @@ new_segment:
if (!skb_can_coalesce(skb, i, pfrag->page,
pfrag->offset)) {
- if (i == MAX_SKB_FRAGS || !sg) {
+ if (i == sysctl_max_skb_frags || !sg) {
tcp_mark_push(tp, skb);
goto new_segment;
}
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 0fd3c84ffaf8..6b4c3e3639bf 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -704,7 +704,8 @@ release_sk1:
outside socket context is ugly, certainly. What can I do?
*/
-static void tcp_v4_send_ack(struct sk_buff *skb, u32 seq, u32 ack,
+static void tcp_v4_send_ack(struct net *net,
+ struct sk_buff *skb, u32 seq, u32 ack,
u32 win, u32 tsval, u32 tsecr, int oif,
struct tcp_md5sig_key *key,
int reply_flags, u8 tos)
@@ -719,7 +720,6 @@ static void tcp_v4_send_ack(struct sk_buff *skb, u32 seq, u32 ack,
];
} rep;
struct ip_reply_arg arg;
- struct net *net = dev_net(skb_dst(skb)->dev);
memset(&rep.th, 0, sizeof(struct tcphdr));
memset(&arg, 0, sizeof(arg));
@@ -780,7 +780,8 @@ static void tcp_v4_timewait_ack(struct sock *sk, struct sk_buff *skb)
struct inet_timewait_sock *tw = inet_twsk(sk);
struct tcp_timewait_sock *tcptw = tcp_twsk(sk);
- tcp_v4_send_ack(skb, tcptw->tw_snd_nxt, tcptw->tw_rcv_nxt,
+ tcp_v4_send_ack(sock_net(sk), skb,
+ tcptw->tw_snd_nxt, tcptw->tw_rcv_nxt,
tcptw->tw_rcv_wnd >> tw->tw_rcv_wscale,
tcp_time_stamp + tcptw->tw_ts_offset,
tcptw->tw_ts_recent,
@@ -799,8 +800,10 @@ static void tcp_v4_reqsk_send_ack(struct sock *sk, struct sk_buff *skb,
/* sk->sk_state == TCP_LISTEN -> for regular TCP_SYN_RECV
* sk->sk_state == TCP_SYN_RECV -> for Fast Open.
*/
- tcp_v4_send_ack(skb, (sk->sk_state == TCP_LISTEN) ?
- tcp_rsk(req)->snt_isn + 1 : tcp_sk(sk)->snd_nxt,
+ u32 seq = (sk->sk_state == TCP_LISTEN) ? tcp_rsk(req)->snt_isn + 1 :
+ tcp_sk(sk)->snd_nxt;
+
+ tcp_v4_send_ack(sock_net(sk), skb, seq,
tcp_rsk(req)->rcv_nxt, req->rcv_wnd,
tcp_time_stamp,
req->ts_recent,
diff --git a/net/ipv4/tcp_metrics.c b/net/ipv4/tcp_metrics.c
index 4fe041805989..600add256464 100644
--- a/net/ipv4/tcp_metrics.c
+++ b/net/ipv4/tcp_metrics.c
@@ -550,7 +550,7 @@ reset:
*/
if (crtt > tp->srtt_us) {
/* Set RTO like tcp_rtt_estimator(), but from cached RTT. */
- crtt /= 8 * USEC_PER_MSEC;
+ crtt /= 8 * USEC_PER_SEC / HZ;
inet_csk(sk)->icsk_rto = crtt + max(2 * crtt, tcp_rto_min(sk));
} else if (tp->srtt_us == 0) {
/* RFC6298: 5.7 We've failed to get a valid RTT sample from
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 2478b20692e8..716475fc884b 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -972,8 +972,10 @@ int udp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
if (msg->msg_controllen) {
err = ip_cmsg_send(sock_net(sk), msg, &ipc,
sk->sk_family == AF_INET6);
- if (err)
+ if (unlikely(err)) {
+ kfree(ipc.opt);
return err;
+ }
if (ipc.opt)
free = 1;
connected = 0;
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 75630e173adf..c844b31c767e 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -186,6 +186,7 @@ static struct ipv6_devconf ipv6_devconf __read_mostly = {
.max_desync_factor = MAX_DESYNC_FACTOR,
.max_addresses = IPV6_MAX_ADDRESSES,
.accept_ra_defrtr = 1,
+ .accept_ra_min_hop_limit= 1,
.accept_ra_pinfo = 1,
#ifdef CONFIG_IPV6_ROUTER_PREF
.accept_ra_rtr_pref = 1,
@@ -222,6 +223,7 @@ static struct ipv6_devconf ipv6_devconf_dflt __read_mostly = {
.max_desync_factor = MAX_DESYNC_FACTOR,
.max_addresses = IPV6_MAX_ADDRESSES,
.accept_ra_defrtr = 1,
+ .accept_ra_min_hop_limit= 1,
.accept_ra_pinfo = 1,
#ifdef CONFIG_IPV6_ROUTER_PREF
.accept_ra_rtr_pref = 1,
@@ -533,7 +535,7 @@ static int inet6_netconf_get_devconf(struct sk_buff *in_skb,
if (err < 0)
goto errout;
- err = EINVAL;
+ err = -EINVAL;
if (!tb[NETCONFA_IFINDEX])
goto errout;
@@ -4294,6 +4296,7 @@ static inline void ipv6_store_devconf(struct ipv6_devconf *cnf,
array[DEVCONF_MAX_DESYNC_FACTOR] = cnf->max_desync_factor;
array[DEVCONF_MAX_ADDRESSES] = cnf->max_addresses;
array[DEVCONF_ACCEPT_RA_DEFRTR] = cnf->accept_ra_defrtr;
+ array[DEVCONF_ACCEPT_RA_MIN_HOP_LIMIT] = cnf->accept_ra_min_hop_limit;
array[DEVCONF_ACCEPT_RA_PINFO] = cnf->accept_ra_pinfo;
#ifdef CONFIG_IPV6_ROUTER_PREF
array[DEVCONF_ACCEPT_RA_RTR_PREF] = cnf->accept_ra_rtr_pref;
@@ -5079,6 +5082,13 @@ static struct addrconf_sysctl_table
.proc_handler = proc_dointvec,
},
{
+ .procname = "accept_ra_min_hop_limit",
+ .data = &ipv6_devconf.accept_ra_min_hop_limit,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec,
+ },
+ {
.procname = "accept_ra_pinfo",
.data = &ipv6_devconf.accept_ra_pinfo,
.maxlen = sizeof(int),
diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c
index ec4c8be39488..21ef73a35831 100644
--- a/net/ipv6/datagram.c
+++ b/net/ipv6/datagram.c
@@ -162,6 +162,9 @@ ipv4_connected:
fl6.fl6_dport = inet->inet_dport;
fl6.fl6_sport = inet->inet_sport;
+ if (!fl6.flowi6_oif)
+ fl6.flowi6_oif = np->sticky_pktinfo.ipi6_ifindex;
+
if (!fl6.flowi6_oif && (addr_type&IPV6_ADDR_MULTICAST))
fl6.flowi6_oif = np->mcast_oif;
diff --git a/net/ipv6/exthdrs_core.c b/net/ipv6/exthdrs_core.c
index 8af3eb57f438..c7c8f71d0d48 100644
--- a/net/ipv6/exthdrs_core.c
+++ b/net/ipv6/exthdrs_core.c
@@ -257,7 +257,11 @@ int ipv6_find_hdr(const struct sk_buff *skb, unsigned int *offset,
*fragoff = _frag_off;
return hp->nexthdr;
}
- return -ENOENT;
+ if (!found)
+ return -ENOENT;
+ if (fragoff)
+ *fragoff = _frag_off;
+ break;
}
hdrlen = 8;
} else if (nexthdr == NEXTHDR_AUTH) {
diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c
index e33349701050..ad84e7dec433 100644
--- a/net/ipv6/mcast.c
+++ b/net/ipv6/mcast.c
@@ -1571,9 +1571,8 @@ static struct sk_buff *mld_newpack(struct inet6_dev *idev, unsigned int mtu)
return NULL;
skb->priority = TC_PRIO_CONTROL;
- skb->reserved_tailroom = skb_end_offset(skb) -
- min(mtu, skb_end_offset(skb));
skb_reserve(skb, hlen);
+ skb_tailroom_reserve(skb, mtu, tlen);
if (__ipv6_get_lladdr(idev, &addr_buf, IFA_F_TENTATIVE)) {
/* <draft-ietf-magma-mld-source-05.txt>:
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index e2eb53c719dc..577338204863 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -1189,18 +1189,16 @@ static void ndisc_router_discovery(struct sk_buff *skb)
if (rt)
rt6_set_expires(rt, jiffies + (HZ * lifetime));
- if (ra_msg->icmph.icmp6_hop_limit) {
- /* Only set hop_limit on the interface if it is higher than
- * the current hop_limit.
- */
- if (in6_dev->cnf.hop_limit < ra_msg->icmph.icmp6_hop_limit) {
+ if (in6_dev->cnf.accept_ra_min_hop_limit < 256 &&
+ ra_msg->icmph.icmp6_hop_limit) {
+ if (in6_dev->cnf.accept_ra_min_hop_limit <= ra_msg->icmph.icmp6_hop_limit) {
in6_dev->cnf.hop_limit = ra_msg->icmph.icmp6_hop_limit;
+ if (rt)
+ dst_metric_set(&rt->dst, RTAX_HOPLIMIT,
+ ra_msg->icmph.icmp6_hop_limit);
} else {
- ND_PRINTK(2, warn, "RA: Got route advertisement with lower hop_limit than current\n");
+ ND_PRINTK(2, warn, "RA: Got route advertisement with lower hop_limit than minimum\n");
}
- if (rt)
- dst_metric_set(&rt->dst, RTAX_HOPLIMIT,
- ra_msg->icmph.icmp6_hop_limit);
}
skip_defrtr:
diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c
index 7a95fa4a3de1..f521848e26c7 100644
--- a/net/iucv/af_iucv.c
+++ b/net/iucv/af_iucv.c
@@ -709,6 +709,9 @@ static int iucv_sock_bind(struct socket *sock, struct sockaddr *addr,
if (!addr || addr->sa_family != AF_IUCV)
return -EINVAL;
+ if (addr_len < sizeof(struct sockaddr_iucv))
+ return -EINVAL;
+
lock_sock(sk);
if (sk->sk_state != IUCV_OPEN) {
err = -EBADFD;
diff --git a/net/mac80211/agg-rx.c b/net/mac80211/agg-rx.c
index 9608c6e65887..07706bec2e3a 100644
--- a/net/mac80211/agg-rx.c
+++ b/net/mac80211/agg-rx.c
@@ -294,7 +294,7 @@ void ieee80211_process_addba_request(struct ieee80211_local *local,
}
/* prepare A-MPDU MLME for Rx aggregation */
- tid_agg_rx = kmalloc(sizeof(struct tid_ampdu_rx), GFP_KERNEL);
+ tid_agg_rx = kzalloc(sizeof(*tid_agg_rx), GFP_KERNEL);
if (!tid_agg_rx)
goto end;
diff --git a/net/mac80211/rc80211_minstrel_ht.c b/net/mac80211/rc80211_minstrel_ht.c
index 85c1e74b7714..d4144f8630ef 100644
--- a/net/mac80211/rc80211_minstrel_ht.c
+++ b/net/mac80211/rc80211_minstrel_ht.c
@@ -464,7 +464,7 @@ minstrel_aggr_check(struct ieee80211_sta *pubsta, struct sk_buff *skb)
if (skb_get_queue_mapping(skb) == IEEE80211_AC_VO)
return;
- ieee80211_start_tx_ba_session(pubsta, tid, 5000);
+ ieee80211_start_tx_ba_session(pubsta, tid, 0);
}
static void
diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index e30c2091a4e1..c143f74a25b9 100644
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -60,6 +60,8 @@
#include <net/inet_common.h>
#include <net/inet_ecn.h>
+#define MAX_SCTP_PORT_HASH_ENTRIES (64 * 1024)
+
/* Global data structures. */
struct sctp_globals sctp_globals __read_mostly;
@@ -1332,6 +1334,8 @@ static __init int sctp_init(void)
unsigned long limit;
int max_share;
int order;
+ int num_entries;
+ int max_entry_order;
BUILD_BUG_ON(sizeof(struct sctp_ulpevent) >
sizeof(((struct sk_buff *) 0)->cb));
@@ -1385,14 +1389,24 @@ static __init int sctp_init(void)
/* Size and allocate the association hash table.
* The methodology is similar to that of the tcp hash tables.
+ * Though not identical. Start by getting a goal size
*/
if (totalram_pages >= (128 * 1024))
goal = totalram_pages >> (22 - PAGE_SHIFT);
else
goal = totalram_pages >> (24 - PAGE_SHIFT);
- for (order = 0; (1UL << order) < goal; order++)
- ;
+ /* Then compute the page order for said goal */
+ order = get_order(goal);
+
+ /* Now compute the required page order for the maximum sized table we
+ * want to create
+ */
+ max_entry_order = get_order(MAX_SCTP_PORT_HASH_ENTRIES *
+ sizeof(struct sctp_bind_hashbucket));
+
+ /* Limit the page order by that maximum hash table size */
+ order = min(order, max_entry_order);
do {
sctp_assoc_hashsize = (1UL << order) * PAGE_SIZE /
@@ -1426,27 +1440,42 @@ static __init int sctp_init(void)
INIT_HLIST_HEAD(&sctp_ep_hashtable[i].chain);
}
- /* Allocate and initialize the SCTP port hash table. */
+ /* Allocate and initialize the SCTP port hash table.
+ * Note that order is initalized to start at the max sized
+ * table we want to support. If we can't get that many pages
+ * reduce the order and try again
+ */
do {
- sctp_port_hashsize = (1UL << order) * PAGE_SIZE /
- sizeof(struct sctp_bind_hashbucket);
- if ((sctp_port_hashsize > (64 * 1024)) && order > 0)
- continue;
sctp_port_hashtable = (struct sctp_bind_hashbucket *)
__get_free_pages(GFP_ATOMIC|__GFP_NOWARN, order);
} while (!sctp_port_hashtable && --order > 0);
+
if (!sctp_port_hashtable) {
pr_err("Failed bind hash alloc\n");
status = -ENOMEM;
goto err_bhash_alloc;
}
+
+ /* Now compute the number of entries that will fit in the
+ * port hash space we allocated
+ */
+ num_entries = (1UL << order) * PAGE_SIZE /
+ sizeof(struct sctp_bind_hashbucket);
+
+ /* And finish by rounding it down to the nearest power of two
+ * this wastes some memory of course, but its needed because
+ * the hash function operates based on the assumption that
+ * that the number of entries is a power of two
+ */
+ sctp_port_hashsize = rounddown_pow_of_two(num_entries);
+
for (i = 0; i < sctp_port_hashsize; i++) {
spin_lock_init(&sctp_port_hashtable[i].lock);
INIT_HLIST_HEAD(&sctp_port_hashtable[i].chain);
}
- pr_info("Hash tables configured (established %d bind %d)\n",
- sctp_assoc_hashsize, sctp_port_hashsize);
+ pr_info("Hash tables configured (established %d bind %d/%d)\n",
+ sctp_assoc_hashsize, sctp_port_hashsize, num_entries);
sctp_sysctl_register();
diff --git a/net/sunrpc/cache.c b/net/sunrpc/cache.c
index 48f14003af10..14d38ec5e53d 100644
--- a/net/sunrpc/cache.c
+++ b/net/sunrpc/cache.c
@@ -1230,7 +1230,7 @@ int qword_get(char **bpp, char *dest, int bufsize)
if (bp[0] == '\\' && bp[1] == 'x') {
/* HEX STRING */
bp += 2;
- while (len < bufsize) {
+ while (len < bufsize - 1) {
int h, l;
h = hex_to_bin(bp[0]);
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index bfc5f03889a9..3e6f0eba8216 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -1722,7 +1722,12 @@ restart_locked:
goto out_unlock;
}
- if (unlikely(unix_peer(other) != sk && unix_recvq_full(other))) {
+ /* other == sk && unix_peer(other) != sk if
+ * - unix_peer(sk) == NULL, destination address bound to sk
+ * - unix_peer(sk) == sk by time of get but disconnected before lock
+ */
+ if (other != sk &&
+ unlikely(unix_peer(other) != sk && unix_recvq_full(other))) {
if (timeo) {
timeo = unix_wait_for_peer(other, timeo);
@@ -2092,13 +2097,15 @@ static int unix_stream_recvmsg(struct kiocb *iocb, struct socket *sock,
long timeo;
int skip;
- err = -EINVAL;
- if (sk->sk_state != TCP_ESTABLISHED)
+ if (unlikely(sk->sk_state != TCP_ESTABLISHED)) {
+ err = -EINVAL;
goto out;
+ }
- err = -EOPNOTSUPP;
- if (flags&MSG_OOB)
+ if (unlikely(flags & MSG_OOB)) {
+ err = -EOPNOTSUPP;
goto out;
+ }
target = sock_rcvlowat(sk, flags&MSG_WAITALL, size);
timeo = sock_rcvtimeo(sk, noblock);
@@ -2146,9 +2153,11 @@ again:
goto unlock;
unix_state_unlock(sk);
- err = -EAGAIN;
- if (!timeo)
+ if (!timeo) {
+ err = -EAGAIN;
break;
+ }
+
mutex_unlock(&u->readlock);
timeo = unix_stream_data_wait(sk, timeo, last);
diff --git a/net/unix/diag.c b/net/unix/diag.c
index 86fa0f3b2caf..27dd3dcb7739 100644
--- a/net/unix/diag.c
+++ b/net/unix/diag.c
@@ -219,7 +219,7 @@ done:
return skb->len;
}
-static struct sock *unix_lookup_by_ino(int ino)
+static struct sock *unix_lookup_by_ino(unsigned int ino)
{
int i;
struct sock *sk;
diff --git a/net/wireless/core.c b/net/wireless/core.c
index a1c40654dd9b..59bc2ff8cfc5 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -1048,6 +1048,8 @@ static int cfg80211_netdev_notifier_call(struct notifier_block *nb,
return NOTIFY_DONE;
}
+ wireless_nlevent_flush();
+
return NOTIFY_OK;
}
diff --git a/net/wireless/wext-core.c b/net/wireless/wext-core.c
index c8717c1d082e..b50ee5d622e1 100644
--- a/net/wireless/wext-core.c
+++ b/net/wireless/wext-core.c
@@ -342,6 +342,40 @@ static const int compat_event_type_size[] = {
/* IW event code */
+void wireless_nlevent_flush(void)
+{
+ struct sk_buff *skb;
+ struct net *net;
+
+ ASSERT_RTNL();
+
+ for_each_net(net) {
+ while ((skb = skb_dequeue(&net->wext_nlevents)))
+ rtnl_notify(skb, net, 0, RTNLGRP_LINK, NULL,
+ GFP_KERNEL);
+ }
+}
+EXPORT_SYMBOL_GPL(wireless_nlevent_flush);
+
+static int wext_netdev_notifier_call(struct notifier_block *nb,
+ unsigned long state, void *ptr)
+{
+ /*
+ * When a netdev changes state in any way, flush all pending messages
+ * to avoid them going out in a strange order, e.g. RTM_NEWLINK after
+ * RTM_DELLINK, or with IFF_UP after without IFF_UP during dev_close()
+ * or similar - all of which could otherwise happen due to delays from
+ * schedule_work().
+ */
+ wireless_nlevent_flush();
+
+ return NOTIFY_OK;
+}
+
+static struct notifier_block wext_netdev_notifier = {
+ .notifier_call = wext_netdev_notifier_call,
+};
+
static int __net_init wext_pernet_init(struct net *net)
{
skb_queue_head_init(&net->wext_nlevents);
@@ -360,7 +394,12 @@ static struct pernet_operations wext_pernet_ops = {
static int __init wireless_nlevent_init(void)
{
- return register_pernet_subsys(&wext_pernet_ops);
+ int err = register_pernet_subsys(&wext_pernet_ops);
+
+ if (err)
+ return err;
+
+ return register_netdevice_notifier(&wext_netdev_notifier);
}
subsys_initcall(wireless_nlevent_init);
@@ -368,17 +407,8 @@ subsys_initcall(wireless_nlevent_init);
/* Process events generated by the wireless layer or the driver. */
static void wireless_nlevent_process(struct work_struct *work)
{
- struct sk_buff *skb;
- struct net *net;
-
rtnl_lock();
-
- for_each_net(net) {
- while ((skb = skb_dequeue(&net->wext_nlevents)))
- rtnl_notify(skb, net, 0, RTNLGRP_LINK, NULL,
- GFP_KERNEL);
- }
-
+ wireless_nlevent_flush();
rtnl_unlock();
}
diff --git a/sound/core/control_compat.c b/sound/core/control_compat.c
index b9c0910fb8c4..0608f216f359 100644
--- a/sound/core/control_compat.c
+++ b/sound/core/control_compat.c
@@ -170,6 +170,19 @@ struct snd_ctl_elem_value32 {
unsigned char reserved[128];
};
+#ifdef CONFIG_X86_X32
+/* x32 has a different alignment for 64bit values from ia32 */
+struct snd_ctl_elem_value_x32 {
+ struct snd_ctl_elem_id id;
+ unsigned int indirect; /* bit-field causes misalignment */
+ union {
+ s32 integer[128];
+ unsigned char data[512];
+ s64 integer64[64];
+ } value;
+ unsigned char reserved[128];
+};
+#endif /* CONFIG_X86_X32 */
/* get the value type and count of the control */
static int get_ctl_type(struct snd_card *card, struct snd_ctl_elem_id *id,
@@ -219,9 +232,11 @@ static int get_elem_size(int type, int count)
static int copy_ctl_value_from_user(struct snd_card *card,
struct snd_ctl_elem_value *data,
- struct snd_ctl_elem_value32 __user *data32,
+ void __user *userdata,
+ void __user *valuep,
int *typep, int *countp)
{
+ struct snd_ctl_elem_value32 __user *data32 = userdata;
int i, type, size;
int uninitialized_var(count);
unsigned int indirect;
@@ -239,8 +254,9 @@ static int copy_ctl_value_from_user(struct snd_card *card,
if (type == SNDRV_CTL_ELEM_TYPE_BOOLEAN ||
type == SNDRV_CTL_ELEM_TYPE_INTEGER) {
for (i = 0; i < count; i++) {
+ s32 __user *intp = valuep;
int val;
- if (get_user(val, &data32->value.integer[i]))
+ if (get_user(val, &intp[i]))
return -EFAULT;
data->value.integer.value[i] = val;
}
@@ -250,8 +266,7 @@ static int copy_ctl_value_from_user(struct snd_card *card,
dev_err(card->dev, "snd_ioctl32_ctl_elem_value: unknown type %d\n", type);
return -EINVAL;
}
- if (copy_from_user(data->value.bytes.data,
- data32->value.data, size))
+ if (copy_from_user(data->value.bytes.data, valuep, size))
return -EFAULT;
}
@@ -261,7 +276,8 @@ static int copy_ctl_value_from_user(struct snd_card *card,
}
/* restore the value to 32bit */
-static int copy_ctl_value_to_user(struct snd_ctl_elem_value32 __user *data32,
+static int copy_ctl_value_to_user(void __user *userdata,
+ void __user *valuep,
struct snd_ctl_elem_value *data,
int type, int count)
{
@@ -270,22 +286,22 @@ static int copy_ctl_value_to_user(struct snd_ctl_elem_value32 __user *data32,
if (type == SNDRV_CTL_ELEM_TYPE_BOOLEAN ||
type == SNDRV_CTL_ELEM_TYPE_INTEGER) {
for (i = 0; i < count; i++) {
+ s32 __user *intp = valuep;
int val;
val = data->value.integer.value[i];
- if (put_user(val, &data32->value.integer[i]))
+ if (put_user(val, &intp[i]))
return -EFAULT;
}
} else {
size = get_elem_size(type, count);
- if (copy_to_user(data32->value.data,
- data->value.bytes.data, size))
+ if (copy_to_user(valuep, data->value.bytes.data, size))
return -EFAULT;
}
return 0;
}
-static int snd_ctl_elem_read_user_compat(struct snd_card *card,
- struct snd_ctl_elem_value32 __user *data32)
+static int ctl_elem_read_user(struct snd_card *card,
+ void __user *userdata, void __user *valuep)
{
struct snd_ctl_elem_value *data;
int err, type, count;
@@ -294,7 +310,9 @@ static int snd_ctl_elem_read_user_compat(struct snd_card *card,
if (data == NULL)
return -ENOMEM;
- if ((err = copy_ctl_value_from_user(card, data, data32, &type, &count)) < 0)
+ err = copy_ctl_value_from_user(card, data, userdata, valuep,
+ &type, &count);
+ if (err < 0)
goto error;
snd_power_lock(card);
@@ -303,14 +321,15 @@ static int snd_ctl_elem_read_user_compat(struct snd_card *card,
err = snd_ctl_elem_read(card, data);
snd_power_unlock(card);
if (err >= 0)
- err = copy_ctl_value_to_user(data32, data, type, count);
+ err = copy_ctl_value_to_user(userdata, valuep, data,
+ type, count);
error:
kfree(data);
return err;
}
-static int snd_ctl_elem_write_user_compat(struct snd_ctl_file *file,
- struct snd_ctl_elem_value32 __user *data32)
+static int ctl_elem_write_user(struct snd_ctl_file *file,
+ void __user *userdata, void __user *valuep)
{
struct snd_ctl_elem_value *data;
struct snd_card *card = file->card;
@@ -320,7 +339,9 @@ static int snd_ctl_elem_write_user_compat(struct snd_ctl_file *file,
if (data == NULL)
return -ENOMEM;
- if ((err = copy_ctl_value_from_user(card, data, data32, &type, &count)) < 0)
+ err = copy_ctl_value_from_user(card, data, userdata, valuep,
+ &type, &count);
+ if (err < 0)
goto error;
snd_power_lock(card);
@@ -329,12 +350,39 @@ static int snd_ctl_elem_write_user_compat(struct snd_ctl_file *file,
err = snd_ctl_elem_write(card, file, data);
snd_power_unlock(card);
if (err >= 0)
- err = copy_ctl_value_to_user(data32, data, type, count);
+ err = copy_ctl_value_to_user(userdata, valuep, data,
+ type, count);
error:
kfree(data);
return err;
}
+static int snd_ctl_elem_read_user_compat(struct snd_card *card,
+ struct snd_ctl_elem_value32 __user *data32)
+{
+ return ctl_elem_read_user(card, data32, &data32->value);
+}
+
+static int snd_ctl_elem_write_user_compat(struct snd_ctl_file *file,
+ struct snd_ctl_elem_value32 __user *data32)
+{
+ return ctl_elem_write_user(file, data32, &data32->value);
+}
+
+#ifdef CONFIG_X86_X32
+static int snd_ctl_elem_read_user_x32(struct snd_card *card,
+ struct snd_ctl_elem_value_x32 __user *data32)
+{
+ return ctl_elem_read_user(card, data32, &data32->value);
+}
+
+static int snd_ctl_elem_write_user_x32(struct snd_ctl_file *file,
+ struct snd_ctl_elem_value_x32 __user *data32)
+{
+ return ctl_elem_write_user(file, data32, &data32->value);
+}
+#endif /* CONFIG_X86_X32 */
+
/* add or replace a user control */
static int snd_ctl_elem_add_compat(struct snd_ctl_file *file,
struct snd_ctl_elem_info32 __user *data32,
@@ -393,6 +441,10 @@ enum {
SNDRV_CTL_IOCTL_ELEM_WRITE32 = _IOWR('U', 0x13, struct snd_ctl_elem_value32),
SNDRV_CTL_IOCTL_ELEM_ADD32 = _IOWR('U', 0x17, struct snd_ctl_elem_info32),
SNDRV_CTL_IOCTL_ELEM_REPLACE32 = _IOWR('U', 0x18, struct snd_ctl_elem_info32),
+#ifdef CONFIG_X86_X32
+ SNDRV_CTL_IOCTL_ELEM_READ_X32 = _IOWR('U', 0x12, struct snd_ctl_elem_value_x32),
+ SNDRV_CTL_IOCTL_ELEM_WRITE_X32 = _IOWR('U', 0x13, struct snd_ctl_elem_value_x32),
+#endif /* CONFIG_X86_X32 */
};
static inline long snd_ctl_ioctl_compat(struct file *file, unsigned int cmd, unsigned long arg)
@@ -431,6 +483,12 @@ static inline long snd_ctl_ioctl_compat(struct file *file, unsigned int cmd, uns
return snd_ctl_elem_add_compat(ctl, argp, 0);
case SNDRV_CTL_IOCTL_ELEM_REPLACE32:
return snd_ctl_elem_add_compat(ctl, argp, 1);
+#ifdef CONFIG_X86_X32
+ case SNDRV_CTL_IOCTL_ELEM_READ_X32:
+ return snd_ctl_elem_read_user_x32(ctl->card, argp);
+ case SNDRV_CTL_IOCTL_ELEM_WRITE_X32:
+ return snd_ctl_elem_write_user_x32(ctl, argp);
+#endif /* CONFIG_X86_X32 */
}
down_read(&snd_ioctl_rwsem);
diff --git a/sound/core/rawmidi_compat.c b/sound/core/rawmidi_compat.c
index 5268c1f58c25..09a89094dcf7 100644
--- a/sound/core/rawmidi_compat.c
+++ b/sound/core/rawmidi_compat.c
@@ -94,9 +94,58 @@ static int snd_rawmidi_ioctl_status_compat(struct snd_rawmidi_file *rfile,
return 0;
}
+#ifdef CONFIG_X86_X32
+/* X32 ABI has 64bit timespec and 64bit alignment */
+struct snd_rawmidi_status_x32 {
+ s32 stream;
+ u32 rsvd; /* alignment */
+ struct timespec tstamp;
+ u32 avail;
+ u32 xruns;
+ unsigned char reserved[16];
+} __attribute__((packed));
+
+#define put_timespec(src, dst) copy_to_user(dst, src, sizeof(*dst))
+
+static int snd_rawmidi_ioctl_status_x32(struct snd_rawmidi_file *rfile,
+ struct snd_rawmidi_status_x32 __user *src)
+{
+ int err;
+ struct snd_rawmidi_status status;
+
+ if (rfile->output == NULL)
+ return -EINVAL;
+ if (get_user(status.stream, &src->stream))
+ return -EFAULT;
+
+ switch (status.stream) {
+ case SNDRV_RAWMIDI_STREAM_OUTPUT:
+ err = snd_rawmidi_output_status(rfile->output, &status);
+ break;
+ case SNDRV_RAWMIDI_STREAM_INPUT:
+ err = snd_rawmidi_input_status(rfile->input, &status);
+ break;
+ default:
+ return -EINVAL;
+ }
+ if (err < 0)
+ return err;
+
+ if (put_timespec(&status.tstamp, &src->tstamp) ||
+ put_user(status.avail, &src->avail) ||
+ put_user(status.xruns, &src->xruns))
+ return -EFAULT;
+
+ return 0;
+}
+#endif /* CONFIG_X86_X32 */
+
enum {
SNDRV_RAWMIDI_IOCTL_PARAMS32 = _IOWR('W', 0x10, struct snd_rawmidi_params32),
SNDRV_RAWMIDI_IOCTL_STATUS32 = _IOWR('W', 0x20, struct snd_rawmidi_status32),
+#ifdef CONFIG_X86_X32
+ SNDRV_RAWMIDI_IOCTL_STATUS_X32 = _IOWR('W', 0x20, struct snd_rawmidi_status_x32),
+#endif /* CONFIG_X86_X32 */
};
static long snd_rawmidi_ioctl_compat(struct file *file, unsigned int cmd, unsigned long arg)
@@ -115,6 +164,10 @@ static long snd_rawmidi_ioctl_compat(struct file *file, unsigned int cmd, unsign
return snd_rawmidi_ioctl_params_compat(rfile, argp);
case SNDRV_RAWMIDI_IOCTL_STATUS32:
return snd_rawmidi_ioctl_status_compat(rfile, argp);
+#ifdef CONFIG_X86_X32
+ case SNDRV_RAWMIDI_IOCTL_STATUS_X32:
+ return snd_rawmidi_ioctl_status_x32(rfile, argp);
+#endif /* CONFIG_X86_X32 */
}
return -ENOIOCTLCMD;
}
diff --git a/sound/core/seq/oss/seq_oss.c b/sound/core/seq/oss/seq_oss.c
index 16d42679e43f..bb032d7593e3 100644
--- a/sound/core/seq/oss/seq_oss.c
+++ b/sound/core/seq/oss/seq_oss.c
@@ -144,8 +144,6 @@ odev_release(struct inode *inode, struct file *file)
if ((dp = file->private_data) == NULL)
return 0;
- snd_seq_oss_drain_write(dp);
-
mutex_lock(®ister_mutex);
snd_seq_oss_release(dp);
mutex_unlock(®ister_mutex);
diff --git a/sound/core/seq/oss/seq_oss_device.h b/sound/core/seq/oss/seq_oss_device.h
index b43924325249..d7b4d016b547 100644
--- a/sound/core/seq/oss/seq_oss_device.h
+++ b/sound/core/seq/oss/seq_oss_device.h
@@ -127,7 +127,6 @@ int snd_seq_oss_write(struct seq_oss_devinfo *dp, const char __user *buf, int co
unsigned int snd_seq_oss_poll(struct seq_oss_devinfo *dp, struct file *file, poll_table * wait);
void snd_seq_oss_reset(struct seq_oss_devinfo *dp);
-void snd_seq_oss_drain_write(struct seq_oss_devinfo *dp);
/* */
void snd_seq_oss_process_queue(struct seq_oss_devinfo *dp, abstime_t time);
diff --git a/sound/core/seq/oss/seq_oss_init.c b/sound/core/seq/oss/seq_oss_init.c
index beea8c861f49..acefecb1a47a 100644
--- a/sound/core/seq/oss/seq_oss_init.c
+++ b/sound/core/seq/oss/seq_oss_init.c
@@ -441,22 +441,6 @@ snd_seq_oss_release(struct seq_oss_devinfo *dp)
/*
- * Wait until the queue is empty (if we don't have nonblock)
- */
-void
-snd_seq_oss_drain_write(struct seq_oss_devinfo *dp)
-{
- if (! dp->timer->running)
- return;
- if (is_write_mode(dp->file_mode) && !is_nonblock_mode(dp->file_mode) &&
- dp->writeq) {
- while (snd_seq_oss_writeq_sync(dp->writeq))
- ;
- }
-}
-
-
-/*
* reset sequencer devices
*/
void
diff --git a/sound/core/seq/seq_fifo.c b/sound/core/seq/seq_fifo.c
index 53a403e17c5b..1d5acbe0c08b 100644
--- a/sound/core/seq/seq_fifo.c
+++ b/sound/core/seq/seq_fifo.c
@@ -33,10 +33,8 @@ struct snd_seq_fifo *snd_seq_fifo_new(int poolsize)
struct snd_seq_fifo *f;
f = kzalloc(sizeof(*f), GFP_KERNEL);
- if (f == NULL) {
- pr_debug("ALSA: seq: malloc failed for snd_seq_fifo_new() \n");
+ if (!f)
return NULL;
- }
f->pool = snd_seq_pool_new(poolsize);
if (f->pool == NULL) {
diff --git a/sound/core/seq/seq_memory.c b/sound/core/seq/seq_memory.c
index 1e206de0c2dd..04ef9b5351f9 100644
--- a/sound/core/seq/seq_memory.c
+++ b/sound/core/seq/seq_memory.c
@@ -383,17 +383,20 @@ int snd_seq_pool_init(struct snd_seq_pool *pool)
if (snd_BUG_ON(!pool))
return -EINVAL;
- if (pool->ptr) /* should be atomic? */
- return 0;
- pool->ptr = vmalloc(sizeof(struct snd_seq_event_cell) * pool->size);
- if (pool->ptr == NULL) {
- pr_debug("ALSA: seq: malloc for sequencer events failed\n");
+ cellptr = vmalloc(sizeof(struct snd_seq_event_cell) * pool->size);
+ if (!cellptr)
return -ENOMEM;
- }
/* add new cells to the free cell list */
spin_lock_irqsave(&pool->lock, flags);
+ if (pool->ptr) {
+ spin_unlock_irqrestore(&pool->lock, flags);
+ vfree(cellptr);
+ return 0;
+ }
+
+ pool->ptr = cellptr;
pool->free = NULL;
for (cell = 0; cell < pool->size; cell++) {
@@ -463,10 +466,8 @@ struct snd_seq_pool *snd_seq_pool_new(int poolsize)
/* create pool block */
pool = kzalloc(sizeof(*pool), GFP_KERNEL);
- if (pool == NULL) {
- pr_debug("ALSA: seq: malloc failed for pool\n");
+ if (!pool)
return NULL;
- }
spin_lock_init(&pool->lock);
pool->ptr = NULL;
pool->free = NULL;
diff --git a/sound/core/seq/seq_ports.c b/sound/core/seq/seq_ports.c
index 2dcdf81e0abb..9c1c8d50f593 100644
--- a/sound/core/seq/seq_ports.c
+++ b/sound/core/seq/seq_ports.c
@@ -141,10 +141,8 @@ struct snd_seq_client_port *snd_seq_create_port(struct snd_seq_client *client,
/* create a new port */
new_port = kzalloc(sizeof(*new_port), GFP_KERNEL);
- if (! new_port) {
- pr_debug("ALSA: seq: malloc failed for registering client port\n");
+ if (!new_port)
return NULL; /* failure, out of memory */
- }
/* init port data */
new_port->addr.client = client->number;
new_port->addr.port = -1;
@@ -540,19 +538,22 @@ static void delete_and_unsubscribe_port(struct snd_seq_client *client,
bool is_src, bool ack)
{
struct snd_seq_port_subs_info *grp;
+ struct list_head *list;
+ bool empty;
grp = is_src ? &port->c_src : &port->c_dest;
+ list = is_src ? &subs->src_list : &subs->dest_list;
down_write(&grp->list_mutex);
write_lock_irq(&grp->list_lock);
- if (is_src)
- list_del(&subs->src_list);
- else
- list_del(&subs->dest_list);
+ empty = list_empty(list);
+ if (!empty)
+ list_del_init(list);
grp->exclusive = 0;
write_unlock_irq(&grp->list_lock);
up_write(&grp->list_mutex);
- unsubscribe_port(client, port, grp, &subs->info, ack);
+ if (!empty)
+ unsubscribe_port(client, port, grp, &subs->info, ack);
}
/* connect two ports */
diff --git a/sound/core/seq/seq_prioq.c b/sound/core/seq/seq_prioq.c
index 021b02bc9330..bc1c8488fc2a 100644
--- a/sound/core/seq/seq_prioq.c
+++ b/sound/core/seq/seq_prioq.c
@@ -59,10 +59,8 @@ struct snd_seq_prioq *snd_seq_prioq_new(void)
struct snd_seq_prioq *f;
f = kzalloc(sizeof(*f), GFP_KERNEL);
- if (f == NULL) {
- pr_debug("ALSA: seq: malloc failed for snd_seq_prioq_new()\n");
+ if (!f)
return NULL;
- }
spin_lock_init(&f->lock);
f->head = NULL;
diff --git a/sound/core/seq/seq_queue.c b/sound/core/seq/seq_queue.c
index 52defd86d8b4..77ec21420355 100644
--- a/sound/core/seq/seq_queue.c
+++ b/sound/core/seq/seq_queue.c
@@ -111,10 +111,8 @@ static struct snd_seq_queue *queue_new(int owner, int locked)
struct snd_seq_queue *q;
q = kzalloc(sizeof(*q), GFP_KERNEL);
- if (q == NULL) {
- pr_debug("ALSA: seq: malloc failed for snd_seq_queue_new()\n");
+ if (!q)
return NULL;
- }
spin_lock_init(&q->owner_lock);
spin_lock_init(&q->check_lock);
diff --git a/sound/core/seq/seq_timer.c b/sound/core/seq/seq_timer.c
index c943dc41c6fe..a2468f1101d1 100644
--- a/sound/core/seq/seq_timer.c
+++ b/sound/core/seq/seq_timer.c
@@ -56,10 +56,8 @@ struct snd_seq_timer *snd_seq_timer_new(void)
struct snd_seq_timer *tmr;
tmr = kzalloc(sizeof(*tmr), GFP_KERNEL);
- if (tmr == NULL) {
- pr_debug("ALSA: seq: malloc failed for snd_seq_timer_new() \n");
+ if (!tmr)
return NULL;
- }
spin_lock_init(&tmr->lock);
/* reset setup to defaults */
diff --git a/sound/core/timer_compat.c b/sound/core/timer_compat.c
index e05802ae6e1b..2e908225d754 100644
--- a/sound/core/timer_compat.c
+++ b/sound/core/timer_compat.c
@@ -70,13 +70,14 @@ static int snd_timer_user_status_compat(struct file *file,
struct snd_timer_status32 __user *_status)
{
struct snd_timer_user *tu;
- struct snd_timer_status status;
+ struct snd_timer_status32 status;
tu = file->private_data;
if (snd_BUG_ON(!tu->timeri))
return -ENXIO;
memset(&status, 0, sizeof(status));
- status.tstamp = tu->tstamp;
+ status.tstamp.tv_sec = tu->tstamp.tv_sec;
+ status.tstamp.tv_nsec = tu->tstamp.tv_nsec;
status.resolution = snd_timer_resolution(tu->timeri);
status.lost = tu->timeri->lost;
status.overrun = tu->overrun;
@@ -88,12 +89,21 @@ static int snd_timer_user_status_compat(struct file *file,
return 0;
}
+#ifdef CONFIG_X86_X32
+/* X32 ABI has the same struct as x86-64 */
+#define snd_timer_user_status_x32(file, s) \
+ snd_timer_user_status(file, s)
+#endif /* CONFIG_X86_X32 */
+
/*
*/
enum {
SNDRV_TIMER_IOCTL_INFO32 = _IOR('T', 0x11, struct snd_timer_info32),
SNDRV_TIMER_IOCTL_STATUS32 = _IOW('T', 0x14, struct snd_timer_status32),
+#ifdef CONFIG_X86_X32
+ SNDRV_TIMER_IOCTL_STATUS_X32 = _IOW('T', 0x14, struct snd_timer_status),
+#endif /* CONFIG_X86_X32 */
};
static long snd_timer_user_ioctl_compat(struct file *file, unsigned int cmd, unsigned long arg)
@@ -122,6 +132,10 @@ static long snd_timer_user_ioctl_compat(struct file *file, unsigned int cmd, uns
return snd_timer_user_info_compat(file, argp);
case SNDRV_TIMER_IOCTL_STATUS32:
return snd_timer_user_status_compat(file, argp);
+#ifdef CONFIG_X86_X32
+ case SNDRV_TIMER_IOCTL_STATUS_X32:
+ return snd_timer_user_status_x32(file, argp);
+#endif /* CONFIG_X86_X32 */
}
return -ENOIOCTLCMD;
}
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index af6448309a00..d7e12d704196 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -4341,6 +4341,8 @@ enum {
ALC275_FIXUP_DELL_XPS,
ALC256_FIXUP_DELL_XPS_13_HEADPHONE_NOISE,
ALC293_FIXUP_LENOVO_SPK_NOISE,
+ ALC255_FIXUP_DELL_SPK_NOISE,
+ ALC280_FIXUP_HP_HEADSET_MIC,
};
static const struct hda_fixup alc269_fixups[] = {
@@ -4827,6 +4829,18 @@ static const struct hda_fixup alc269_fixups[] = {
.chained = true,
.chain_id = ALC269_FIXUP_THINKPAD_ACPI
},
+ [ALC255_FIXUP_DELL_SPK_NOISE] = {
+ .type = HDA_FIXUP_FUNC,
+ .v.func = alc_fixup_disable_aamix,
+ .chained = true,
+ .chain_id = ALC255_FIXUP_DELL1_MIC_NO_PRESENCE
+ },
+ [ALC280_FIXUP_HP_HEADSET_MIC] = {
+ .type = HDA_FIXUP_FUNC,
+ .v.func = alc_fixup_disable_aamix,
+ .chained = true,
+ .chain_id = ALC269_FIXUP_HEADSET_MIC,
+ },
};
static const struct snd_pci_quirk alc269_fixup_tbl[] = {
@@ -4839,6 +4853,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
SND_PCI_QUIRK(0x1025, 0x0740, "Acer AO725", ALC271_FIXUP_HP_GATE_MIC_JACK),
SND_PCI_QUIRK(0x1025, 0x0742, "Acer AO756", ALC271_FIXUP_HP_GATE_MIC_JACK),
SND_PCI_QUIRK_VENDOR(0x1025, "Acer Aspire", ALC271_FIXUP_DMIC),
+ SND_PCI_QUIRK(0x1025, 0x0762, "Acer Aspire E1-472", ALC271_FIXUP_HP_GATE_MIC_JACK_E1_572),
SND_PCI_QUIRK(0x1025, 0x0775, "Acer Aspire E1-572", ALC271_FIXUP_HP_GATE_MIC_JACK_E1_572),
SND_PCI_QUIRK(0x1025, 0x106d, "Acer Cloudbook 14", ALC283_FIXUP_CHROME_BOOK),
SND_PCI_QUIRK(0x1028, 0x0470, "Dell M101z", ALC269_FIXUP_DELL_M101Z),
@@ -4892,6 +4907,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
SND_PCI_QUIRK(0x1028, 0x06d9, "Dell", ALC293_FIXUP_DELL1_MIC_NO_PRESENCE),
SND_PCI_QUIRK(0x1028, 0x06da, "Dell", ALC293_FIXUP_DELL1_MIC_NO_PRESENCE),
SND_PCI_QUIRK(0x1028, 0x0704, "Dell XPS 13", ALC256_FIXUP_DELL_XPS_13_HEADPHONE_NOISE),
+ SND_PCI_QUIRK(0x1028, 0x0725, "Dell Inspiron 3162", ALC255_FIXUP_DELL_SPK_NOISE),
SND_PCI_QUIRK(0x1028, 0x164a, "Dell", ALC293_FIXUP_DELL1_MIC_NO_PRESENCE),
SND_PCI_QUIRK(0x1028, 0x164b, "Dell", ALC293_FIXUP_DELL1_MIC_NO_PRESENCE),
SND_PCI_QUIRK(0x103c, 0x1586, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC2),
@@ -4943,6 +4959,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
SND_PCI_QUIRK(0x103c, 0x2336, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC1),
SND_PCI_QUIRK(0x103c, 0x2337, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC1),
SND_PCI_QUIRK_VENDOR(0x103c, "HP", ALC269_FIXUP_HP_MUTE_LED),
+ SND_PCI_QUIRK(0x103c, 0x221c, "HP EliteBook 755 G2", ALC280_FIXUP_HP_HEADSET_MIC),
SND_PCI_QUIRK(0x1043, 0x103f, "ASUS TX300", ALC282_FIXUP_ASUS_TX300),
SND_PCI_QUIRK(0x1043, 0x106d, "Asus K53BE", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
SND_PCI_QUIRK(0x1043, 0x115d, "Asus 1015E", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
diff --git a/sound/pci/rme9652/hdsp.c b/sound/pci/rme9652/hdsp.c
index 4c6f5d1c9882..a2fbc99aad87 100644
--- a/sound/pci/rme9652/hdsp.c
+++ b/sound/pci/rme9652/hdsp.c
@@ -2927,7 +2927,7 @@ static int snd_hdsp_get_dds_offset(struct snd_kcontrol *kcontrol, struct snd_ctl
{
struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
- ucontrol->value.enumerated.item[0] = hdsp_dds_offset(hdsp);
+ ucontrol->value.integer.value[0] = hdsp_dds_offset(hdsp);
return 0;
}
@@ -2939,7 +2939,7 @@ static int snd_hdsp_put_dds_offset(struct snd_kcontrol *kcontrol, struct snd_ctl
if (!snd_hdsp_use_is_exclusive(hdsp))
return -EBUSY;
- val = ucontrol->value.enumerated.item[0];
+ val = ucontrol->value.integer.value[0];
spin_lock_irq(&hdsp->lock);
if (val != hdsp_dds_offset(hdsp))
change = (hdsp_set_dds_offset(hdsp, val) == 0) ? 1 : 0;
diff --git a/sound/pci/rme9652/hdspm.c b/sound/pci/rme9652/hdspm.c
index f292bed4424d..811d3c1eb338 100644
--- a/sound/pci/rme9652/hdspm.c
+++ b/sound/pci/rme9652/hdspm.c
@@ -1602,6 +1602,9 @@ static void hdspm_set_dds_value(struct hdspm *hdspm, int rate)
{
u64 n;
+ if (snd_BUG_ON(rate <= 0))
+ return;
+
if (rate >= 112000)
rate /= 4;
else if (rate >= 56000)
@@ -2220,6 +2223,8 @@ static int hdspm_get_system_sample_rate(struct hdspm *hdspm)
} else {
/* slave mode, return external sample rate */
rate = hdspm_external_sample_rate(hdspm);
+ if (!rate)
+ rate = hdspm->system_sample_rate;
}
}
@@ -2265,8 +2270,11 @@ static int snd_hdspm_put_system_sample_rate(struct snd_kcontrol *kcontrol,
ucontrol)
{
struct hdspm *hdspm = snd_kcontrol_chip(kcontrol);
+ int rate = ucontrol->value.integer.value[0];
- hdspm_set_dds_value(hdspm, ucontrol->value.enumerated.item[0]);
+ if (rate < 27000 || rate > 207000)
+ return -EINVAL;
+ hdspm_set_dds_value(hdspm, ucontrol->value.integer.value[0]);
return 0;
}
@@ -4465,7 +4473,7 @@ static int snd_hdspm_get_tco_word_term(struct snd_kcontrol *kcontrol,
{
struct hdspm *hdspm = snd_kcontrol_chip(kcontrol);
- ucontrol->value.enumerated.item[0] = hdspm->tco->term;
+ ucontrol->value.integer.value[0] = hdspm->tco->term;
return 0;
}
@@ -4476,8 +4484,8 @@ static int snd_hdspm_put_tco_word_term(struct snd_kcontrol *kcontrol,
{
struct hdspm *hdspm = snd_kcontrol_chip(kcontrol);
- if (hdspm->tco->term != ucontrol->value.enumerated.item[0]) {
- hdspm->tco->term = ucontrol->value.enumerated.item[0];
+ if (hdspm->tco->term != ucontrol->value.integer.value[0]) {
+ hdspm->tco->term = ucontrol->value.integer.value[0];
hdspm_tco_write(hdspm);
diff --git a/sound/soc/codecs/wm8958-dsp2.c b/sound/soc/codecs/wm8958-dsp2.c
index b2ebb104d879..418a768e670c 100644
--- a/sound/soc/codecs/wm8958-dsp2.c
+++ b/sound/soc/codecs/wm8958-dsp2.c
@@ -459,7 +459,7 @@ static int wm8958_put_mbc_enum(struct snd_kcontrol *kcontrol,
struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);
struct wm8994 *control = wm8994->wm8994;
- int value = ucontrol->value.integer.value[0];
+ int value = ucontrol->value.enumerated.item[0];
int reg;
/* Don't allow on the fly reconfiguration */
@@ -549,7 +549,7 @@ static int wm8958_put_vss_enum(struct snd_kcontrol *kcontrol,
struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);
struct wm8994 *control = wm8994->wm8994;
- int value = ucontrol->value.integer.value[0];
+ int value = ucontrol->value.enumerated.item[0];
int reg;
/* Don't allow on the fly reconfiguration */
@@ -582,7 +582,7 @@ static int wm8958_put_vss_hpf_enum(struct snd_kcontrol *kcontrol,
struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);
struct wm8994 *control = wm8994->wm8994;
- int value = ucontrol->value.integer.value[0];
+ int value = ucontrol->value.enumerated.item[0];
int reg;
/* Don't allow on the fly reconfiguration */
@@ -749,7 +749,7 @@ static int wm8958_put_enh_eq_enum(struct snd_kcontrol *kcontrol,
struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);
struct wm8994 *control = wm8994->wm8994;
- int value = ucontrol->value.integer.value[0];
+ int value = ucontrol->value.enumerated.item[0];
int reg;
/* Don't allow on the fly reconfiguration */
diff --git a/sound/soc/codecs/wm8994.c b/sound/soc/codecs/wm8994.c
index d54c10e4fa90..e1bb8b036909 100644
--- a/sound/soc/codecs/wm8994.c
+++ b/sound/soc/codecs/wm8994.c
@@ -360,7 +360,7 @@ static int wm8994_put_drc_enum(struct snd_kcontrol *kcontrol,
struct wm8994 *control = wm8994->wm8994;
struct wm8994_pdata *pdata = &control->pdata;
int drc = wm8994_get_drc(kcontrol->id.name);
- int value = ucontrol->value.integer.value[0];
+ int value = ucontrol->value.enumerated.item[0];
if (drc < 0)
return drc;
@@ -467,7 +467,7 @@ static int wm8994_put_retune_mobile_enum(struct snd_kcontrol *kcontrol,
struct wm8994 *control = wm8994->wm8994;
struct wm8994_pdata *pdata = &control->pdata;
int block = wm8994_get_retune_mobile_block(kcontrol->id.name);
- int value = ucontrol->value.integer.value[0];
+ int value = ucontrol->value.enumerated.item[0];
if (block < 0)
return block;
diff --git a/sound/soc/codecs/wm_adsp.c b/sound/soc/codecs/wm_adsp.c
index 051350052d62..51bdb4765b41 100644
--- a/sound/soc/codecs/wm_adsp.c
+++ b/sound/soc/codecs/wm_adsp.c
@@ -246,7 +246,7 @@ static int wm_adsp_fw_get(struct snd_kcontrol *kcontrol,
struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
struct wm_adsp *adsp = snd_soc_codec_get_drvdata(codec);
- ucontrol->value.integer.value[0] = adsp[e->shift_l].fw;
+ ucontrol->value.enumerated.item[0] = adsp[e->shift_l].fw;
return 0;
}
@@ -258,16 +258,16 @@ static int wm_adsp_fw_put(struct snd_kcontrol *kcontrol,
struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
struct wm_adsp *adsp = snd_soc_codec_get_drvdata(codec);
- if (ucontrol->value.integer.value[0] == adsp[e->shift_l].fw)
+ if (ucontrol->value.enumerated.item[0] == adsp[e->shift_l].fw)
return 0;
- if (ucontrol->value.integer.value[0] >= WM_ADSP_NUM_FW)
+ if (ucontrol->value.enumerated.item[0] >= WM_ADSP_NUM_FW)
return -EINVAL;
if (adsp[e->shift_l].running)
return -EBUSY;
- adsp[e->shift_l].fw = ucontrol->value.integer.value[0];
+ adsp[e->shift_l].fw = ucontrol->value.enumerated.item[0];
return 0;
}
diff --git a/tools/testing/selftests/efivarfs/efivarfs.sh b/tools/testing/selftests/efivarfs/efivarfs.sh
index 77edcdcc016b..057278448515 100644
--- a/tools/testing/selftests/efivarfs/efivarfs.sh
+++ b/tools/testing/selftests/efivarfs/efivarfs.sh
@@ -88,7 +88,11 @@ test_delete()
exit 1
fi
- rm $file
+ rm $file 2>/dev/null
+ if [ $? -ne 0 ]; then
+ chattr -i $file
+ rm $file
+ fi
if [ -e $file ]; then
echo "$file couldn't be deleted" >&2
@@ -111,6 +115,7 @@ test_zero_size_delete()
exit 1
fi
+ chattr -i $file
printf "$attrs" > $file
if [ -e $file ]; then
@@ -141,7 +146,11 @@ test_valid_filenames()
echo "$file could not be created" >&2
ret=1
else
- rm $file
+ rm $file 2>/dev/null
+ if [ $? -ne 0 ]; then
+ chattr -i $file
+ rm $file
+ fi
fi
done
@@ -174,7 +183,11 @@ test_invalid_filenames()
if [ -e $file ]; then
echo "Creating $file should have failed" >&2
- rm $file
+ rm $file 2>/dev/null
+ if [ $? -ne 0 ]; then
+ chattr -i $file
+ rm $file
+ fi
ret=1
fi
done
diff --git a/tools/testing/selftests/efivarfs/open-unlink.c b/tools/testing/selftests/efivarfs/open-unlink.c
index 8c0764407b3c..4af74f733036 100644
--- a/tools/testing/selftests/efivarfs/open-unlink.c
+++ b/tools/testing/selftests/efivarfs/open-unlink.c
@@ -1,10 +1,68 @@
+#include <errno.h>
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <unistd.h>
+#include <sys/ioctl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
+#include <linux/fs.h>
+
+static int set_immutable(const char *path, int immutable)
+{
+ unsigned int flags;
+ int fd;
+ int rc;
+ int error;
+
+ fd = open(path, O_RDONLY);
+ if (fd < 0)
+ return fd;
+
+ rc = ioctl(fd, FS_IOC_GETFLAGS, &flags);
+ if (rc < 0) {
+ error = errno;
+ close(fd);
+ errno = error;
+ return rc;
+ }
+
+ if (immutable)
+ flags |= FS_IMMUTABLE_FL;
+ else
+ flags &= ~FS_IMMUTABLE_FL;
+
+ rc = ioctl(fd, FS_IOC_SETFLAGS, &flags);
+ error = errno;
+ close(fd);
+ errno = error;
+ return rc;
+}
+
+static int get_immutable(const char *path)
+{
+ unsigned int flags;
+ int fd;
+ int rc;
+ int error;
+
+ fd = open(path, O_RDONLY);
+ if (fd < 0)
+ return fd;
+
+ rc = ioctl(fd, FS_IOC_GETFLAGS, &flags);
+ if (rc < 0) {
+ error = errno;
+ close(fd);
+ errno = error;
+ return rc;
+ }
+ close(fd);
+ if (flags & FS_IMMUTABLE_FL)
+ return 1;
+ return 0;
+}
int main(int argc, char **argv)
{
@@ -27,7 +85,7 @@ int main(int argc, char **argv)
buf[4] = 0;
/* create a test variable */
- fd = open(path, O_WRONLY | O_CREAT);
+ fd = open(path, O_WRONLY | O_CREAT, 0600);
if (fd < 0) {
perror("open(O_WRONLY)");
return EXIT_FAILURE;
@@ -41,6 +99,18 @@ int main(int argc, char **argv)
close(fd);
+ rc = get_immutable(path);
+ if (rc < 0) {
+ perror("ioctl(FS_IOC_GETFLAGS)");
+ return EXIT_FAILURE;
+ } else if (rc) {
+ rc = set_immutable(path, 0);
+ if (rc < 0) {
+ perror("ioctl(FS_IOC_SETFLAGS)");
+ return EXIT_FAILURE;
+ }
+ }
+
fd = open(path, O_RDONLY);
if (fd < 0) {
perror("open");
diff --git a/virt/kvm/async_pf.c b/virt/kvm/async_pf.c
index d6a3d0993d88..965a818dea75 100644
--- a/virt/kvm/async_pf.c
+++ b/virt/kvm/async_pf.c
@@ -171,7 +171,7 @@ int kvm_setup_async_pf(struct kvm_vcpu *vcpu, gva_t gva, unsigned long hva,
* do alloc nowait since if we are going to sleep anyway we
* may as well sleep faulting in page
*/
- work = kmem_cache_zalloc(async_pf_cache, GFP_NOWAIT);
+ work = kmem_cache_zalloc(async_pf_cache, GFP_NOWAIT | __GFP_NOWARN);
if (!work)
return 0;
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