Re: [PATCH 3.2 000/200] 3.2.56-rc1 review

From: Ben Hutchings
Date: Sun Mar 30 2014 - 20:42:23 EST

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This is the combined patch for 3.2.56-rc1 relative to 3.2.55.

Ben.

--
Ben Hutchings
friends: People who know you well, but like you anyway.
diff --git a/Documentation/filesystems/proc.txt b/Documentation/filesystems/proc.txt
index 0ec91f0..404a097 100644
--- a/Documentation/filesystems/proc.txt
+++ b/Documentation/filesystems/proc.txt
@@ -1293,8 +1293,8 @@ may allocate from based on an estimation of its current memory and swap use.
For example, if a task is using all allowed memory, its badness score will be
1000. If it is using half of its allowed memory, its score will be 500.

-There is an additional factor included in the badness score: root
-processes are given 3% extra memory over other tasks.
+There is an additional factor included in the badness score: the current memory
+and swap usage is discounted by 3% for root processes.

The amount of "allowed" memory depends on the context in which the oom killer
was called. If it is due to the memory assigned to the allocating task's cpuset
diff --git a/Documentation/i2c/busses/i2c-piix4 b/Documentation/i2c/busses/i2c-piix4
index 65da157..0982e72 100644
--- a/Documentation/i2c/busses/i2c-piix4
+++ b/Documentation/i2c/busses/i2c-piix4
@@ -8,7 +8,7 @@ Supported adapters:
Datasheet: Only available via NDA from ServerWorks
* ATI IXP200, IXP300, IXP400, SB600, SB700 and SB800 southbridges
Datasheet: Not publicly available
- * AMD Hudson-2, CZ
+ * AMD Hudson-2, ML, CZ
Datasheet: Not publicly available
* Standard Microsystems (SMSC) SLC90E66 (Victory66) southbridge
Datasheet: Publicly available at the SMSC website http://www.smsc.com
diff --git a/Makefile b/Makefile
index 538463e..4b353f6 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
VERSION = 3
PATCHLEVEL = 2
-SUBLEVEL = 55
-EXTRAVERSION =
+SUBLEVEL = 56
+EXTRAVERSION = -rc1
NAME = Saber-toothed Squirrel

# *DOCUMENTATION*
diff --git a/arch/alpha/lib/csum_partial_copy.c b/arch/alpha/lib/csum_partial_copy.c
index 40736da..1d2ef5a 100644
--- a/arch/alpha/lib/csum_partial_copy.c
+++ b/arch/alpha/lib/csum_partial_copy.c
@@ -373,6 +373,11 @@ csum_partial_copy_from_user(const void __user *src, void *dst, int len,
__wsum
csum_partial_copy_nocheck(const void *src, void *dst, int len, __wsum sum)
{
- return csum_partial_copy_from_user((__force const void __user *)src,
- dst, len, sum, NULL);
+ __wsum checksum;
+ mm_segment_t oldfs = get_fs();
+ set_fs(KERNEL_DS);
+ checksum = csum_partial_copy_from_user((__force const void __user *)src,
+ dst, len, sum, NULL);
+ set_fs(oldfs);
+ return checksum;
}
diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h
index 1397408..b1e0e07 100644
--- a/arch/arm/include/asm/cacheflush.h
+++ b/arch/arm/include/asm/cacheflush.h
@@ -202,6 +202,7 @@ extern void copy_to_user_page(struct vm_area_struct *, struct page *,
static inline void __flush_icache_all(void)
{
__flush_icache_preferred();
+ dsb();
}

#define flush_cache_all() __cpuc_flush_kern_all()
diff --git a/arch/arm/include/asm/spinlock.h b/arch/arm/include/asm/spinlock.h
index 65fa3c8..095a9a3 100644
--- a/arch/arm/include/asm/spinlock.h
+++ b/arch/arm/include/asm/spinlock.h
@@ -44,18 +44,9 @@

static inline void dsb_sev(void)
{
-#if __LINUX_ARM_ARCH__ >= 7
- __asm__ __volatile__ (
- "dsb\n"
- SEV
- );
-#else
- __asm__ __volatile__ (
- "mcr p15, 0, %0, c7, c10, 4\n"
- SEV
- : : "r" (0)
- );
-#endif
+
+ dsb();
+ __asm__(SEV);
}

/*
diff --git a/arch/arm/mm/proc-v6.S b/arch/arm/mm/proc-v6.S
index 8168d99..85a5348 100644
--- a/arch/arm/mm/proc-v6.S
+++ b/arch/arm/mm/proc-v6.S
@@ -199,7 +199,6 @@ __v6_setup:
mcr p15, 0, r0, c7, c14, 0 @ clean+invalidate D cache
mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache
mcr p15, 0, r0, c7, c15, 0 @ clean+invalidate cache
- mcr p15, 0, r0, c7, c10, 4 @ drain write buffer
#ifdef CONFIG_MMU
mcr p15, 0, r0, c8, c7, 0 @ invalidate I + D TLBs
mcr p15, 0, r0, c2, c0, 2 @ TTB control register
@@ -209,6 +208,8 @@ __v6_setup:
ALT_UP(orr r8, r8, #TTB_FLAGS_UP)
mcr p15, 0, r8, c2, c0, 1 @ load TTB1
#endif /* CONFIG_MMU */
+ mcr p15, 0, r0, c7, c10, 4 @ drain write buffer and
+ @ complete invalidations
adr r5, v6_crval
ldmia r5, {r5, r6}
#ifdef CONFIG_CPU_ENDIAN_BE8
diff --git a/arch/arm/mm/proc-v7.S b/arch/arm/mm/proc-v7.S
index 785365e..19d21ff 100644
--- a/arch/arm/mm/proc-v7.S
+++ b/arch/arm/mm/proc-v7.S
@@ -368,7 +368,6 @@ __v7_setup:

3: mov r10, #0
mcr p15, 0, r10, c7, c5, 0 @ I+BTB cache invalidate
- dsb
#ifdef CONFIG_MMU
mcr p15, 0, r10, c8, c7, 0 @ invalidate I + D TLBs
mcr p15, 0, r10, c2, c0, 2 @ TTB control register
@@ -382,6 +381,7 @@ __v7_setup:
mcr p15, 0, r5, c10, c2, 0 @ write PRRR
mcr p15, 0, r6, c10, c2, 1 @ write NMRR
#endif
+ dsb @ Complete invalidations
#ifndef CONFIG_ARM_THUMBEE
mrc p15, 0, r0, c0, c1, 0 @ read ID_PFR0 for ThumbEE
and r0, r0, #(0xf << 12) @ ThumbEE enabled field
diff --git a/arch/avr32/Makefile b/arch/avr32/Makefile
index 22fb665..dba48a5 100644
--- a/arch/avr32/Makefile
+++ b/arch/avr32/Makefile
@@ -11,7 +11,7 @@ all: uImage vmlinux.elf

KBUILD_DEFCONFIG := atstk1002_defconfig

-KBUILD_CFLAGS += -pipe -fno-builtin -mno-pic
+KBUILD_CFLAGS += -pipe -fno-builtin -mno-pic -D__linux__
KBUILD_AFLAGS += -mrelax -mno-pic
KBUILD_CFLAGS_MODULE += -mno-relax
LDFLAGS_vmlinux += --relax
diff --git a/arch/avr32/boards/mimc200/fram.c b/arch/avr32/boards/mimc200/fram.c
index 9764a1a..c1466a8 100644
--- a/arch/avr32/boards/mimc200/fram.c
+++ b/arch/avr32/boards/mimc200/fram.c
@@ -11,6 +11,7 @@
#define FRAM_VERSION "1.0"

#include <linux/miscdevice.h>
+#include <linux/module.h>
#include <linux/proc_fs.h>
#include <linux/mm.h>
#include <linux/io.h>
diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c
index a79fe9a..7d5ac0b 100644
--- a/arch/mips/mm/c-r4k.c
+++ b/arch/mips/mm/c-r4k.c
@@ -633,9 +633,6 @@ static void r4k_dma_cache_inv(unsigned long addr, unsigned long size)
if (size >= scache_size)
r4k_blast_scache();
else {
- unsigned long lsize = cpu_scache_line_size();
- unsigned long almask = ~(lsize - 1);
-
/*
* There is no clearly documented alignment requirement
* for the cache instruction on MIPS processors and
@@ -644,9 +641,6 @@ static void r4k_dma_cache_inv(unsigned long addr, unsigned long size)
* hit ops with insufficient alignment. Solved by
* aligning the address to cache line size.
*/
- cache_op(Hit_Writeback_Inv_SD, addr & almask);
- cache_op(Hit_Writeback_Inv_SD,
- (addr + size - 1) & almask);
blast_inv_scache_range(addr, addr + size);
}
__sync();
@@ -656,12 +650,7 @@ static void r4k_dma_cache_inv(unsigned long addr, unsigned long size)
if (cpu_has_safe_index_cacheops && size >= dcache_size) {
r4k_blast_dcache();
} else {
- unsigned long lsize = cpu_dcache_line_size();
- unsigned long almask = ~(lsize - 1);
-
R4600_HIT_CACHEOP_WAR_IMPL;
- cache_op(Hit_Writeback_Inv_D, addr & almask);
- cache_op(Hit_Writeback_Inv_D, (addr + size - 1) & almask);
blast_inv_dcache_range(addr, addr + size);
}

diff --git a/arch/powerpc/kernel/cacheinfo.c b/arch/powerpc/kernel/cacheinfo.c
index a3c684b..02ebe1a 100644
--- a/arch/powerpc/kernel/cacheinfo.c
+++ b/arch/powerpc/kernel/cacheinfo.c
@@ -788,6 +788,9 @@ static void remove_cache_dir(struct cache_dir *cache_dir)
{
remove_index_dirs(cache_dir);

+ /* Remove cache dir from sysfs */
+ kobject_del(cache_dir->kobj);
+
kobject_put(cache_dir->kobj);

kfree(cache_dir);
diff --git a/arch/powerpc/kernel/crash_dump.c b/arch/powerpc/kernel/crash_dump.c
index 424afb6..39787c9 100644
--- a/arch/powerpc/kernel/crash_dump.c
+++ b/arch/powerpc/kernel/crash_dump.c
@@ -108,17 +108,19 @@ ssize_t copy_oldmem_page(unsigned long pfn, char *buf,
size_t csize, unsigned long offset, int userbuf)
{
void *vaddr;
+ phys_addr_t paddr;

if (!csize)
return 0;

csize = min_t(size_t, csize, PAGE_SIZE);
+ paddr = pfn << PAGE_SHIFT;

- if ((min_low_pfn < pfn) && (pfn < max_pfn)) {
- vaddr = __va(pfn << PAGE_SHIFT);
+ if (memblock_is_region_memory(paddr, csize)) {
+ vaddr = __va(paddr);
csize = copy_oldmem_vaddr(vaddr, buf, csize, offset, userbuf);
} else {
- vaddr = __ioremap(pfn << PAGE_SHIFT, PAGE_SIZE, 0);
+ vaddr = __ioremap(paddr, PAGE_SIZE, 0);
csize = copy_oldmem_vaddr(vaddr, buf, csize, offset, userbuf);
iounmap(vaddr);
}
diff --git a/arch/powerpc/kernel/reloc_64.S b/arch/powerpc/kernel/reloc_64.S
index b47a0e1..c712ece 100644
--- a/arch/powerpc/kernel/reloc_64.S
+++ b/arch/powerpc/kernel/reloc_64.S
@@ -81,6 +81,7 @@ _GLOBAL(relocate)

6: blr

+.balign 8
p_dyn: .llong __dynamic_start - 0b
p_rela: .llong __rela_dyn_start - 0b
p_st: .llong _stext - 0b
diff --git a/arch/powerpc/kvm/e500_tlb.c b/arch/powerpc/kvm/e500_tlb.c
index 13c432e..844fc83 100644
--- a/arch/powerpc/kvm/e500_tlb.c
+++ b/arch/powerpc/kvm/e500_tlb.c
@@ -481,7 +481,7 @@ static inline void kvmppc_e500_priv_release(struct tlbe_priv *priv)
}

static inline void kvmppc_e500_deliver_tlb_miss(struct kvm_vcpu *vcpu,
- unsigned int eaddr, int as)
+ gva_t eaddr, int as)
{
struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
unsigned int victim, pidsel, tsized;
diff --git a/arch/powerpc/platforms/pseries/hotplug-cpu.c b/arch/powerpc/platforms/pseries/hotplug-cpu.c
index c986d08..3a573e4 100644
--- a/arch/powerpc/platforms/pseries/hotplug-cpu.c
+++ b/arch/powerpc/platforms/pseries/hotplug-cpu.c
@@ -35,12 +35,7 @@
#include "offline_states.h"

/* This version can't take the spinlock, because it never returns */
-static struct rtas_args rtas_stop_self_args = {
- .token = RTAS_UNKNOWN_SERVICE,
- .nargs = 0,
- .nret = 1,
- .rets = &rtas_stop_self_args.args[0],
-};
+static int rtas_stop_self_token = RTAS_UNKNOWN_SERVICE;

static DEFINE_PER_CPU(enum cpu_state_vals, preferred_offline_state) =
CPU_STATE_OFFLINE;
@@ -93,15 +88,20 @@ void set_default_offline_state(int cpu)

static void rtas_stop_self(void)
{
- struct rtas_args *args = &rtas_stop_self_args;
+ struct rtas_args args = {
+ .token = cpu_to_be32(rtas_stop_self_token),
+ .nargs = 0,
+ .nret = 1,
+ .rets = &args.args[0],
+ };

local_irq_disable();

- BUG_ON(args->token == RTAS_UNKNOWN_SERVICE);
+ BUG_ON(rtas_stop_self_token == RTAS_UNKNOWN_SERVICE);

printk("cpu %u (hwid %u) Ready to die...\n",
smp_processor_id(), hard_smp_processor_id());
- enter_rtas(__pa(args));
+ enter_rtas(__pa(&args));

panic("Alas, I survived.\n");
}
@@ -384,10 +384,10 @@ static int __init pseries_cpu_hotplug_init(void)
}
}

- rtas_stop_self_args.token = rtas_token("stop-self");
+ rtas_stop_self_token = rtas_token("stop-self");
qcss_tok = rtas_token("query-cpu-stopped-state");

- if (rtas_stop_self_args.token == RTAS_UNKNOWN_SERVICE ||
+ if (rtas_stop_self_token == RTAS_UNKNOWN_SERVICE ||
qcss_tok == RTAS_UNKNOWN_SERVICE) {
printk(KERN_INFO "CPU Hotplug not supported by firmware "
"- disabling.\n");
diff --git a/arch/s390/crypto/aes_s390.c b/arch/s390/crypto/aes_s390.c
index 3ec8b39..51fb1ef 100644
--- a/arch/s390/crypto/aes_s390.c
+++ b/arch/s390/crypto/aes_s390.c
@@ -25,6 +25,7 @@
#include <linux/err.h>
#include <linux/module.h>
#include <linux/init.h>
+#include <linux/spinlock.h>
#include "crypt_s390.h"

#define AES_KEYLEN_128 1
@@ -32,6 +33,7 @@
#define AES_KEYLEN_256 4

static u8 *ctrblk;
+static DEFINE_SPINLOCK(ctrblk_lock);
static char keylen_flag;

struct s390_aes_ctx {
@@ -324,7 +326,8 @@ static int ecb_aes_crypt(struct blkcipher_desc *desc, long func, void *param,
u8 *in = walk->src.virt.addr;

ret = crypt_s390_km(func, param, out, in, n);
- BUG_ON((ret < 0) || (ret != n));
+ if (ret < 0 || ret != n)
+ return -EIO;

nbytes &= AES_BLOCK_SIZE - 1;
ret = blkcipher_walk_done(desc, walk, nbytes);
@@ -463,7 +466,8 @@ static int cbc_aes_crypt(struct blkcipher_desc *desc, long func,
u8 *in = walk->src.virt.addr;

ret = crypt_s390_kmc(func, &param, out, in, n);
- BUG_ON((ret < 0) || (ret != n));
+ if (ret < 0 || ret != n)
+ return -EIO;

nbytes &= AES_BLOCK_SIZE - 1;
ret = blkcipher_walk_done(desc, walk, nbytes);
@@ -636,7 +640,8 @@ static int xts_aes_crypt(struct blkcipher_desc *desc, long func,
memcpy(pcc_param.tweak, walk->iv, sizeof(pcc_param.tweak));
memcpy(pcc_param.key, xts_ctx->pcc_key, 32);
ret = crypt_s390_pcc(func, &pcc_param.key[offset]);
- BUG_ON(ret < 0);
+ if (ret < 0)
+ return -EIO;

memcpy(xts_param.key, xts_ctx->key, 32);
memcpy(xts_param.init, pcc_param.xts, 16);
@@ -647,7 +652,8 @@ static int xts_aes_crypt(struct blkcipher_desc *desc, long func,
in = walk->src.virt.addr;

ret = crypt_s390_km(func, &xts_param.key[offset], out, in, n);
- BUG_ON(ret < 0 || ret != n);
+ if (ret < 0 || ret != n)
+ return -EIO;

nbytes &= AES_BLOCK_SIZE - 1;
ret = blkcipher_walk_done(desc, walk, nbytes);
@@ -756,42 +762,67 @@ static int ctr_aes_set_key(struct crypto_tfm *tfm, const u8 *in_key,
return aes_set_key(tfm, in_key, key_len);
}

+static unsigned int __ctrblk_init(u8 *ctrptr, unsigned int nbytes)
+{
+ unsigned int i, n;
+
+ /* only use complete blocks, max. PAGE_SIZE */
+ n = (nbytes > PAGE_SIZE) ? PAGE_SIZE : nbytes & ~(AES_BLOCK_SIZE - 1);
+ for (i = AES_BLOCK_SIZE; i < n; i += AES_BLOCK_SIZE) {
+ memcpy(ctrptr + i, ctrptr + i - AES_BLOCK_SIZE,
+ AES_BLOCK_SIZE);
+ crypto_inc(ctrptr + i, AES_BLOCK_SIZE);
+ }
+ return n;
+}
+
static int ctr_aes_crypt(struct blkcipher_desc *desc, long func,
struct s390_aes_ctx *sctx, struct blkcipher_walk *walk)
{
int ret = blkcipher_walk_virt_block(desc, walk, AES_BLOCK_SIZE);
- unsigned int i, n, nbytes;
- u8 buf[AES_BLOCK_SIZE];
- u8 *out, *in;
+ unsigned int n, nbytes;
+ u8 buf[AES_BLOCK_SIZE], ctrbuf[AES_BLOCK_SIZE];
+ u8 *out, *in, *ctrptr = ctrbuf;

if (!walk->nbytes)
return ret;

- memcpy(ctrblk, walk->iv, AES_BLOCK_SIZE);
+ if (spin_trylock(&ctrblk_lock))
+ ctrptr = ctrblk;
+
+ memcpy(ctrptr, walk->iv, AES_BLOCK_SIZE);
while ((nbytes = walk->nbytes) >= AES_BLOCK_SIZE) {
out = walk->dst.virt.addr;
in = walk->src.virt.addr;
while (nbytes >= AES_BLOCK_SIZE) {
- /* only use complete blocks, max. PAGE_SIZE */
- n = (nbytes > PAGE_SIZE) ? PAGE_SIZE :
- nbytes & ~(AES_BLOCK_SIZE - 1);
- for (i = AES_BLOCK_SIZE; i < n; i += AES_BLOCK_SIZE) {
- memcpy(ctrblk + i, ctrblk + i - AES_BLOCK_SIZE,
- AES_BLOCK_SIZE);
- crypto_inc(ctrblk + i, AES_BLOCK_SIZE);
+ if (ctrptr == ctrblk)
+ n = __ctrblk_init(ctrptr, nbytes);
+ else
+ n = AES_BLOCK_SIZE;
+ ret = crypt_s390_kmctr(func, sctx->key, out, in,
+ n, ctrptr);
+ if (ret < 0 || ret != n) {
+ if (ctrptr == ctrblk)
+ spin_unlock(&ctrblk_lock);
+ return -EIO;
}
- ret = crypt_s390_kmctr(func, sctx->key, out, in, n, ctrblk);
- BUG_ON(ret < 0 || ret != n);
if (n > AES_BLOCK_SIZE)
- memcpy(ctrblk, ctrblk + n - AES_BLOCK_SIZE,
+ memcpy(ctrptr, ctrptr + n - AES_BLOCK_SIZE,
AES_BLOCK_SIZE);
- crypto_inc(ctrblk, AES_BLOCK_SIZE);
+ crypto_inc(ctrptr, AES_BLOCK_SIZE);
out += n;
in += n;
nbytes -= n;
}
ret = blkcipher_walk_done(desc, walk, nbytes);
}
+ if (ctrptr == ctrblk) {
+ if (nbytes)
+ memcpy(ctrbuf, ctrptr, AES_BLOCK_SIZE);
+ else
+ memcpy(walk->iv, ctrptr, AES_BLOCK_SIZE);
+ spin_unlock(&ctrblk_lock);
+ }
/*
* final block may be < AES_BLOCK_SIZE, copy only nbytes
*/
@@ -799,13 +830,15 @@ static int ctr_aes_crypt(struct blkcipher_desc *desc, long func,
out = walk->dst.virt.addr;
in = walk->src.virt.addr;
ret = crypt_s390_kmctr(func, sctx->key, buf, in,
- AES_BLOCK_SIZE, ctrblk);
- BUG_ON(ret < 0 || ret != AES_BLOCK_SIZE);
+ AES_BLOCK_SIZE, ctrbuf);
+ if (ret < 0 || ret != AES_BLOCK_SIZE)
+ return -EIO;
memcpy(out, buf, nbytes);
- crypto_inc(ctrblk, AES_BLOCK_SIZE);
+ crypto_inc(ctrbuf, AES_BLOCK_SIZE);
ret = blkcipher_walk_done(desc, walk, 0);
+ memcpy(walk->iv, ctrbuf, AES_BLOCK_SIZE);
}
- memcpy(walk->iv, ctrblk, AES_BLOCK_SIZE);
+
return ret;
}

diff --git a/arch/s390/crypto/des_s390.c b/arch/s390/crypto/des_s390.c
index a52bfd1..991fb7d 100644
--- a/arch/s390/crypto/des_s390.c
+++ b/arch/s390/crypto/des_s390.c
@@ -25,6 +25,7 @@
#define DES3_KEY_SIZE (3 * DES_KEY_SIZE)

static u8 *ctrblk;
+static DEFINE_SPINLOCK(ctrblk_lock);

struct s390_des_ctx {
u8 iv[DES_BLOCK_SIZE];
@@ -95,7 +96,8 @@ static int ecb_desall_crypt(struct blkcipher_desc *desc, long func,
u8 *in = walk->src.virt.addr;

ret = crypt_s390_km(func, key, out, in, n);
- BUG_ON((ret < 0) || (ret != n));
+ if (ret < 0 || ret != n)
+ return -EIO;

nbytes &= DES_BLOCK_SIZE - 1;
ret = blkcipher_walk_done(desc, walk, nbytes);
@@ -105,28 +107,35 @@ static int ecb_desall_crypt(struct blkcipher_desc *desc, long func,
}

static int cbc_desall_crypt(struct blkcipher_desc *desc, long func,
- u8 *iv, struct blkcipher_walk *walk)
+ struct blkcipher_walk *walk)
{
+ struct s390_des_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
int ret = blkcipher_walk_virt(desc, walk);
unsigned int nbytes = walk->nbytes;
+ struct {
+ u8 iv[DES_BLOCK_SIZE];
+ u8 key[DES3_KEY_SIZE];
+ } param;

if (!nbytes)
goto out;

- memcpy(iv, walk->iv, DES_BLOCK_SIZE);
+ memcpy(param.iv, walk->iv, DES_BLOCK_SIZE);
+ memcpy(param.key, ctx->key, DES3_KEY_SIZE);
do {
/* only use complete blocks */
unsigned int n = nbytes & ~(DES_BLOCK_SIZE - 1);
u8 *out = walk->dst.virt.addr;
u8 *in = walk->src.virt.addr;

- ret = crypt_s390_kmc(func, iv, out, in, n);
- BUG_ON((ret < 0) || (ret != n));
+ ret = crypt_s390_kmc(func, &param, out, in, n);
+ if (ret < 0 || ret != n)
+ return -EIO;

nbytes &= DES_BLOCK_SIZE - 1;
ret = blkcipher_walk_done(desc, walk, nbytes);
} while ((nbytes = walk->nbytes));
- memcpy(walk->iv, iv, DES_BLOCK_SIZE);
+ memcpy(walk->iv, param.iv, DES_BLOCK_SIZE);

out:
return ret;
@@ -179,22 +188,20 @@ static int cbc_des_encrypt(struct blkcipher_desc *desc,
struct scatterlist *dst, struct scatterlist *src,
unsigned int nbytes)
{
- struct s390_des_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
struct blkcipher_walk walk;

blkcipher_walk_init(&walk, dst, src, nbytes);
- return cbc_desall_crypt(desc, KMC_DEA_ENCRYPT, ctx->iv, &walk);
+ return cbc_desall_crypt(desc, KMC_DEA_ENCRYPT, &walk);
}

static int cbc_des_decrypt(struct blkcipher_desc *desc,
struct scatterlist *dst, struct scatterlist *src,
unsigned int nbytes)
{
- struct s390_des_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
struct blkcipher_walk walk;

blkcipher_walk_init(&walk, dst, src, nbytes);
- return cbc_desall_crypt(desc, KMC_DEA_DECRYPT, ctx->iv, &walk);
+ return cbc_desall_crypt(desc, KMC_DEA_DECRYPT, &walk);
}

static struct crypto_alg cbc_des_alg = {
@@ -331,22 +338,20 @@ static int cbc_des3_encrypt(struct blkcipher_desc *desc,
struct scatterlist *dst, struct scatterlist *src,
unsigned int nbytes)
{
- struct s390_des_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
struct blkcipher_walk walk;

blkcipher_walk_init(&walk, dst, src, nbytes);
- return cbc_desall_crypt(desc, KMC_TDEA_192_ENCRYPT, ctx->iv, &walk);
+ return cbc_desall_crypt(desc, KMC_TDEA_192_ENCRYPT, &walk);
}

static int cbc_des3_decrypt(struct blkcipher_desc *desc,
struct scatterlist *dst, struct scatterlist *src,
unsigned int nbytes)
{
- struct s390_des_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
struct blkcipher_walk walk;

blkcipher_walk_init(&walk, dst, src, nbytes);
- return cbc_desall_crypt(desc, KMC_TDEA_192_DECRYPT, ctx->iv, &walk);
+ return cbc_desall_crypt(desc, KMC_TDEA_192_DECRYPT, &walk);
}

static struct crypto_alg cbc_des3_alg = {
@@ -372,52 +377,80 @@ static struct crypto_alg cbc_des3_alg = {
}
};

+static unsigned int __ctrblk_init(u8 *ctrptr, unsigned int nbytes)
+{
+ unsigned int i, n;
+
+ /* align to block size, max. PAGE_SIZE */
+ n = (nbytes > PAGE_SIZE) ? PAGE_SIZE : nbytes & ~(DES_BLOCK_SIZE - 1);
+ for (i = DES_BLOCK_SIZE; i < n; i += DES_BLOCK_SIZE) {
+ memcpy(ctrptr + i, ctrptr + i - DES_BLOCK_SIZE, DES_BLOCK_SIZE);
+ crypto_inc(ctrptr + i, DES_BLOCK_SIZE);
+ }
+ return n;
+}
+
static int ctr_desall_crypt(struct blkcipher_desc *desc, long func,
- struct s390_des_ctx *ctx, struct blkcipher_walk *walk)
+ struct s390_des_ctx *ctx,
+ struct blkcipher_walk *walk)
{
int ret = blkcipher_walk_virt_block(desc, walk, DES_BLOCK_SIZE);
- unsigned int i, n, nbytes;
- u8 buf[DES_BLOCK_SIZE];
- u8 *out, *in;
+ unsigned int n, nbytes;
+ u8 buf[DES_BLOCK_SIZE], ctrbuf[DES_BLOCK_SIZE];
+ u8 *out, *in, *ctrptr = ctrbuf;
+
+ if (!walk->nbytes)
+ return ret;
+
+ if (spin_trylock(&ctrblk_lock))
+ ctrptr = ctrblk;

- memcpy(ctrblk, walk->iv, DES_BLOCK_SIZE);
+ memcpy(ctrptr, walk->iv, DES_BLOCK_SIZE);
while ((nbytes = walk->nbytes) >= DES_BLOCK_SIZE) {
out = walk->dst.virt.addr;
in = walk->src.virt.addr;
while (nbytes >= DES_BLOCK_SIZE) {
- /* align to block size, max. PAGE_SIZE */
- n = (nbytes > PAGE_SIZE) ? PAGE_SIZE :
- nbytes & ~(DES_BLOCK_SIZE - 1);
- for (i = DES_BLOCK_SIZE; i < n; i += DES_BLOCK_SIZE) {
- memcpy(ctrblk + i, ctrblk + i - DES_BLOCK_SIZE,
- DES_BLOCK_SIZE);
- crypto_inc(ctrblk + i, DES_BLOCK_SIZE);
+ if (ctrptr == ctrblk)
+ n = __ctrblk_init(ctrptr, nbytes);
+ else
+ n = DES_BLOCK_SIZE;
+ ret = crypt_s390_kmctr(func, ctx->key, out, in,
+ n, ctrptr);
+ if (ret < 0 || ret != n) {
+ if (ctrptr == ctrblk)
+ spin_unlock(&ctrblk_lock);
+ return -EIO;
}
- ret = crypt_s390_kmctr(func, ctx->key, out, in, n, ctrblk);
- BUG_ON((ret < 0) || (ret != n));
if (n > DES_BLOCK_SIZE)
- memcpy(ctrblk, ctrblk + n - DES_BLOCK_SIZE,
+ memcpy(ctrptr, ctrptr + n - DES_BLOCK_SIZE,
DES_BLOCK_SIZE);
- crypto_inc(ctrblk, DES_BLOCK_SIZE);
+ crypto_inc(ctrptr, DES_BLOCK_SIZE);
out += n;
in += n;
nbytes -= n;
}
ret = blkcipher_walk_done(desc, walk, nbytes);
}
-
+ if (ctrptr == ctrblk) {
+ if (nbytes)
+ memcpy(ctrbuf, ctrptr, DES_BLOCK_SIZE);
+ else
+ memcpy(walk->iv, ctrptr, DES_BLOCK_SIZE);
+ spin_unlock(&ctrblk_lock);
+ }
/* final block may be < DES_BLOCK_SIZE, copy only nbytes */
if (nbytes) {
out = walk->dst.virt.addr;
in = walk->src.virt.addr;
ret = crypt_s390_kmctr(func, ctx->key, buf, in,
- DES_BLOCK_SIZE, ctrblk);
- BUG_ON(ret < 0 || ret != DES_BLOCK_SIZE);
+ DES_BLOCK_SIZE, ctrbuf);
+ if (ret < 0 || ret != DES_BLOCK_SIZE)
+ return -EIO;
memcpy(out, buf, nbytes);
- crypto_inc(ctrblk, DES_BLOCK_SIZE);
+ crypto_inc(ctrbuf, DES_BLOCK_SIZE);
ret = blkcipher_walk_done(desc, walk, 0);
+ memcpy(walk->iv, ctrbuf, DES_BLOCK_SIZE);
}
- memcpy(walk->iv, ctrblk, DES_BLOCK_SIZE);
return ret;
}

diff --git a/arch/s390/crypto/ghash_s390.c b/arch/s390/crypto/ghash_s390.c
index b1bd170..f6373f0 100644
--- a/arch/s390/crypto/ghash_s390.c
+++ b/arch/s390/crypto/ghash_s390.c
@@ -72,14 +72,16 @@ static int ghash_update(struct shash_desc *desc,
if (!dctx->bytes) {
ret = crypt_s390_kimd(KIMD_GHASH, ctx, buf,
GHASH_BLOCK_SIZE);
- BUG_ON(ret != GHASH_BLOCK_SIZE);
+ if (ret != GHASH_BLOCK_SIZE)
+ return -EIO;
}
}

n = srclen & ~(GHASH_BLOCK_SIZE - 1);
if (n) {
ret = crypt_s390_kimd(KIMD_GHASH, ctx, src, n);
- BUG_ON(ret != n);
+ if (ret != n)
+ return -EIO;
src += n;
srclen -= n;
}
@@ -92,7 +94,7 @@ static int ghash_update(struct shash_desc *desc,
return 0;
}

-static void ghash_flush(struct ghash_ctx *ctx, struct ghash_desc_ctx *dctx)
+static int ghash_flush(struct ghash_ctx *ctx, struct ghash_desc_ctx *dctx)
{
u8 *buf = dctx->buffer;
int ret;
@@ -103,21 +105,24 @@ static void ghash_flush(struct ghash_ctx *ctx, struct ghash_desc_ctx *dctx)
memset(pos, 0, dctx->bytes);

ret = crypt_s390_kimd(KIMD_GHASH, ctx, buf, GHASH_BLOCK_SIZE);
- BUG_ON(ret != GHASH_BLOCK_SIZE);
+ if (ret != GHASH_BLOCK_SIZE)
+ return -EIO;
}

dctx->bytes = 0;
+ return 0;
}

static int ghash_final(struct shash_desc *desc, u8 *dst)
{
struct ghash_desc_ctx *dctx = shash_desc_ctx(desc);
struct ghash_ctx *ctx = crypto_shash_ctx(desc->tfm);
+ int ret;

- ghash_flush(ctx, dctx);
- memcpy(dst, ctx->icv, GHASH_BLOCK_SIZE);
-
- return 0;
+ ret = ghash_flush(ctx, dctx);
+ if (!ret)
+ memcpy(dst, ctx->icv, GHASH_BLOCK_SIZE);
+ return ret;
}

static struct shash_alg ghash_alg = {
diff --git a/arch/s390/crypto/sha_common.c b/arch/s390/crypto/sha_common.c
index bd37d09..8620b0e 100644
--- a/arch/s390/crypto/sha_common.c
+++ b/arch/s390/crypto/sha_common.c
@@ -36,7 +36,8 @@ int s390_sha_update(struct shash_desc *desc, const u8 *data, unsigned int len)
if (index) {
memcpy(ctx->buf + index, data, bsize - index);
ret = crypt_s390_kimd(ctx->func, ctx->state, ctx->buf, bsize);
- BUG_ON(ret != bsize);
+ if (ret != bsize)
+ return -EIO;
data += bsize - index;
len -= bsize - index;
index = 0;
@@ -46,7 +47,8 @@ int s390_sha_update(struct shash_desc *desc, const u8 *data, unsigned int len)
if (len >= bsize) {
ret = crypt_s390_kimd(ctx->func, ctx->state, data,
len & ~(bsize - 1));
- BUG_ON(ret != (len & ~(bsize - 1)));
+ if (ret != (len & ~(bsize - 1)))
+ return -EIO;
data += ret;
len -= ret;
}
@@ -88,7 +90,8 @@ int s390_sha_final(struct shash_desc *desc, u8 *out)
memcpy(ctx->buf + end - 8, &bits, sizeof(bits));

ret = crypt_s390_kimd(ctx->func, ctx->state, ctx->buf, end);
- BUG_ON(ret != end);
+ if (ret != end)
+ return -EIO;

/* copy digest to out */
memcpy(out, ctx->state, crypto_shash_digestsize(desc->tfm));
diff --git a/arch/s390/mm/page-states.c b/arch/s390/mm/page-states.c
index a90d45e..27c50f4 100644
--- a/arch/s390/mm/page-states.c
+++ b/arch/s390/mm/page-states.c
@@ -12,6 +12,8 @@
#include <linux/mm.h>
#include <linux/gfp.h>
#include <linux/init.h>
+#include <asm/setup.h>
+#include <asm/ipl.h>

#define ESSA_SET_STABLE 1
#define ESSA_SET_UNUSED 2
@@ -41,6 +43,14 @@ void __init cmma_init(void)

if (!cmma_flag)
return;
+ /*
+ * Disable CMM for dump, otherwise the tprot based memory
+ * detection can fail because of unstable pages.
+ */
+ if (OLDMEM_BASE || ipl_info.type == IPL_TYPE_FCP_DUMP) {
+ cmma_flag = 0;
+ return;
+ }
asm volatile(
" .insn rrf,0xb9ab0000,%1,%1,0,0\n"
"0: la %0,0\n"
diff --git a/arch/x86/include/asm/irq.h b/arch/x86/include/asm/irq.h
index ba870bb..f97134a 100644
--- a/arch/x86/include/asm/irq.h
+++ b/arch/x86/include/asm/irq.h
@@ -25,6 +25,7 @@ extern void irq_ctx_init(int cpu);

#ifdef CONFIG_HOTPLUG_CPU
#include <linux/cpumask.h>
+extern int check_irq_vectors_for_cpu_disable(void);
extern void fixup_irqs(void);
extern void irq_force_complete_move(int);
#endif
diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c
index 2bda212..1c041e0 100644
--- a/arch/x86/kernel/cpu/perf_event.c
+++ b/arch/x86/kernel/cpu/perf_event.c
@@ -971,6 +971,9 @@ static void x86_pmu_del(struct perf_event *event, int flags)
for (i = 0; i < cpuc->n_events; i++) {
if (event == cpuc->event_list[i]) {

+ if (i >= cpuc->n_events - cpuc->n_added)
+ --cpuc->n_added;
+
if (x86_pmu.put_event_constraints)
x86_pmu.put_event_constraints(cpuc, event);

diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c
index fb2eb32..687637b 100644
--- a/arch/x86/kernel/irq.c
+++ b/arch/x86/kernel/irq.c
@@ -222,6 +222,76 @@ void smp_x86_platform_ipi(struct pt_regs *regs)
EXPORT_SYMBOL_GPL(vector_used_by_percpu_irq);

#ifdef CONFIG_HOTPLUG_CPU
+/*
+ * This cpu is going to be removed and its vectors migrated to the remaining
+ * online cpus. Check to see if there are enough vectors in the remaining cpus.
+ * This function is protected by stop_machine().
+ */
+int check_irq_vectors_for_cpu_disable(void)
+{
+ int irq, cpu;
+ unsigned int this_cpu, vector, this_count, count;
+ struct irq_desc *desc;
+ struct irq_data *data;
+ struct cpumask affinity_new, online_new;
+
+ this_cpu = smp_processor_id();
+ cpumask_copy(&online_new, cpu_online_mask);
+ cpu_clear(this_cpu, online_new);
+
+ this_count = 0;
+ for (vector = FIRST_EXTERNAL_VECTOR; vector < NR_VECTORS; vector++) {
+ irq = __this_cpu_read(vector_irq[vector]);
+ if (irq >= 0) {
+ desc = irq_to_desc(irq);
+ data = irq_desc_get_irq_data(desc);
+ cpumask_copy(&affinity_new, data->affinity);
+ cpu_clear(this_cpu, affinity_new);
+
+ /* Do not count inactive or per-cpu irqs. */
+ if (!irq_has_action(irq) || irqd_is_per_cpu(data))
+ continue;
+
+ /*
+ * A single irq may be mapped to multiple
+ * cpu's vector_irq[] (for example IOAPIC cluster
+ * mode). In this case we have two
+ * possibilities:
+ *
+ * 1) the resulting affinity mask is empty; that is
+ * this the down'd cpu is the last cpu in the irq's
+ * affinity mask, or
+ *
+ * 2) the resulting affinity mask is no longer
+ * a subset of the online cpus but the affinity
+ * mask is not zero; that is the down'd cpu is the
+ * last online cpu in a user set affinity mask.
+ */
+ if (cpumask_empty(&affinity_new) ||
+ !cpumask_subset(&affinity_new, &online_new))
+ this_count++;
+ }
+ }
+
+ count = 0;
+ for_each_online_cpu(cpu) {
+ if (cpu == this_cpu)
+ continue;
+ for (vector = FIRST_EXTERNAL_VECTOR; vector < NR_VECTORS;
+ vector++) {
+ if (per_cpu(vector_irq, cpu)[vector] < 0)
+ count++;
+ }
+ }
+
+ if (count < this_count) {
+ pr_warn("CPU %d disable failed: CPU has %u vectors assigned and there are only %u available.\n",
+ this_cpu, this_count, count);
+ return -ERANGE;
+ }
+ return 0;
+}
+
/* A cpu has been removed from cpu_online_mask. Reset irq affinities. */
void fixup_irqs(void)
{
diff --git a/arch/x86/kernel/quirks.c b/arch/x86/kernel/quirks.c
index 03920a1..28a3e62 100644
--- a/arch/x86/kernel/quirks.c
+++ b/arch/x86/kernel/quirks.c
@@ -525,7 +525,7 @@ static void __init quirk_amd_nb_node(struct pci_dev *dev)
return;

pci_read_config_dword(nb_ht, 0x60, &val);
- node = val & 7;
+ node = pcibus_to_node(dev->bus) | (val & 7);
/*
* Some hardware may return an invalid node ID,
* so check it first:
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 9f548cb..b88eadb 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -1278,6 +1278,7 @@ void cpu_disable_common(void)
int native_cpu_disable(void)
{
int cpu = smp_processor_id();
+ int ret;

/*
* Perhaps use cpufreq to drop frequency, but that could go
@@ -1290,6 +1291,10 @@ int native_cpu_disable(void)
if (cpu == 0)
return -EBUSY;

+ ret = check_irq_vectors_for_cpu_disable();
+ if (ret)
+ return ret;
+
clear_local_APIC();

cpu_disable_common();
diff --git a/arch/x86/kvm/i8254.c b/arch/x86/kvm/i8254.c
index 405f262..139415e 100644
--- a/arch/x86/kvm/i8254.c
+++ b/arch/x86/kvm/i8254.c
@@ -38,6 +38,7 @@

#include "irq.h"
#include "i8254.h"
+#include "x86.h"

#ifndef CONFIG_X86_64
#define mod_64(x, y) ((x) - (y) * div64_u64(x, y))
@@ -364,6 +365,23 @@ static void create_pit_timer(struct kvm *kvm, u32 val, int is_period)
atomic_set(&pt->pending, 0);
ps->irq_ack = 1;

+ /*
+ * Do not allow the guest to program periodic timers with small
+ * interval, since the hrtimers are not throttled by the host
+ * scheduler.
+ */
+ if (ps->is_periodic) {
+ s64 min_period = min_timer_period_us * 1000LL;
+
+ if (pt->period < min_period) {
+ pr_info_ratelimited(
+ "kvm: requested %lld ns "
+ "i8254 timer period limited to %lld ns\n",
+ pt->period, min_period);
+ pt->period = min_period;
+ }
+ }
+
hrtimer_start(&pt->timer, ktime_add_ns(ktime_get(), interval),
HRTIMER_MODE_ABS);
}
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index 757c716..176205a 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -68,9 +68,6 @@
#define VEC_POS(v) ((v) & (32 - 1))
#define REG_POS(v) (((v) >> 5) << 4)

-static unsigned int min_timer_period_us = 500;
-module_param(min_timer_period_us, uint, S_IRUGO | S_IWUSR);
-
static inline u32 apic_get_reg(struct kvm_lapic *apic, int reg_off)
{
return *((u32 *) (apic->regs + reg_off));
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 94a4672..2102a17 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -2904,10 +2904,8 @@ static int cr8_write_interception(struct vcpu_svm *svm)
u8 cr8_prev = kvm_get_cr8(&svm->vcpu);
/* instruction emulation calls kvm_set_cr8() */
r = cr_interception(svm);
- if (irqchip_in_kernel(svm->vcpu.kvm)) {
- clr_cr_intercept(svm, INTERCEPT_CR8_WRITE);
+ if (irqchip_in_kernel(svm->vcpu.kvm))
return r;
- }
if (cr8_prev <= kvm_get_cr8(&svm->vcpu))
return r;
kvm_run->exit_reason = KVM_EXIT_SET_TPR;
@@ -3462,6 +3460,8 @@ static void update_cr8_intercept(struct kvm_vcpu *vcpu, int tpr, int irr)
if (is_guest_mode(vcpu) && (vcpu->arch.hflags & HF_VINTR_MASK))
return;

+ clr_cr_intercept(svm, INTERCEPT_CR8_WRITE);
+
if (irr == -1)
return;

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 7774cca..b9fefaf 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -92,6 +92,9 @@ EXPORT_SYMBOL_GPL(kvm_x86_ops);
int ignore_msrs = 0;
module_param_named(ignore_msrs, ignore_msrs, bool, S_IRUGO | S_IWUSR);

+unsigned int min_timer_period_us = 500;
+module_param(min_timer_period_us, uint, S_IRUGO | S_IWUSR);
+
bool kvm_has_tsc_control;
EXPORT_SYMBOL_GPL(kvm_has_tsc_control);
u32 kvm_max_guest_tsc_khz;
diff --git a/arch/x86/kvm/x86.h b/arch/x86/kvm/x86.h
index d36fe23..0e22f64 100644
--- a/arch/x86/kvm/x86.h
+++ b/arch/x86/kvm/x86.h
@@ -125,4 +125,6 @@ int kvm_write_guest_virt_system(struct x86_emulate_ctxt *ctxt,
gva_t addr, void *val, unsigned int bytes,
struct x86_exception *exception);

+extern unsigned int min_timer_period_us;
+
#endif
diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c
index bee75a6..e56da77 100644
--- a/arch/x86/platform/efi/efi.c
+++ b/arch/x86/platform/efi/efi.c
@@ -424,7 +424,7 @@ void __init efi_reserve_boot_services(void)
* - Not within any part of the kernel
* - Not the bios reserved area
*/
- if ((start+size >= virt_to_phys(_text)
+ if ((start + size > virt_to_phys(_text)
&& start <= virt_to_phys(_end)) ||
!e820_all_mapped(start, start+size, E820_RAM) ||
memblock_x86_check_reserved_size(&start, &size,
diff --git a/block/blk-lib.c b/block/blk-lib.c
index 2b461b4..36751e2 100644
--- a/block/blk-lib.c
+++ b/block/blk-lib.c
@@ -101,6 +101,14 @@ int blkdev_issue_discard(struct block_device *bdev, sector_t sector,

atomic_inc(&bb.done);
submit_bio(type, bio);
+
+ /*
+ * We can loop for a long time in here, if someone does
+ * full device discards (like mkfs). Be nice and allow
+ * us to schedule out to avoid softlocking if preempt
+ * is disabled.
+ */
+ cond_resched();
}

/* Wait for bios in-flight */
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 5016de5..f324429 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -33,6 +33,7 @@
#include <linux/proc_fs.h>
#include <linux/acpi.h>
#include <linux/slab.h>
+#include <linux/regulator/machine.h>
#ifdef CONFIG_X86
#include <asm/mpspec.h>
#endif
@@ -917,6 +918,14 @@ void __init acpi_early_init(void)
goto error0;
}

+ /*
+ * If the system is using ACPI then we can be reasonably
+ * confident that any regulators are managed by the firmware
+ * so tell the regulator core it has everything it needs to
+ * know.
+ */
+ regulator_has_full_constraints();
+
return;

error0:
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 8176b82..f9cf28a 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -70,6 +70,8 @@ enum ec_command {
#define ACPI_EC_DELAY 500 /* Wait 500ms max. during EC ops */
#define ACPI_EC_UDELAY_GLK 1000 /* Wait 1ms max. to get global lock */
#define ACPI_EC_MSI_UDELAY 550 /* Wait 550us for MSI EC */
+#define ACPI_EC_CLEAR_MAX 100 /* Maximum number of events to query
+ * when trying to clear the EC */

enum {
EC_FLAGS_QUERY_PENDING, /* Query is pending */
@@ -123,6 +125,7 @@ EXPORT_SYMBOL(first_ec);
static int EC_FLAGS_MSI; /* Out-of-spec MSI controller */
static int EC_FLAGS_VALIDATE_ECDT; /* ASUStec ECDTs need to be validated */
static int EC_FLAGS_SKIP_DSDT_SCAN; /* Not all BIOS survive early DSDT scan */
+static int EC_FLAGS_CLEAR_ON_RESUME; /* Needs acpi_ec_clear() on boot/resume */

/* --------------------------------------------------------------------------
Transaction Management
@@ -449,6 +452,29 @@ int ec_transaction(u8 command,

EXPORT_SYMBOL(ec_transaction);

+static int acpi_ec_query_unlocked(struct acpi_ec *ec, u8 *data);
+
+/*
+ * Clears stale _Q events that might have accumulated in the EC.
+ * Run with locked ec mutex.
+ */
+static void acpi_ec_clear(struct acpi_ec *ec)
+{
+ int i, status;
+ u8 value = 0;
+
+ for (i = 0; i < ACPI_EC_CLEAR_MAX; i++) {
+ status = acpi_ec_query_unlocked(ec, &value);
+ if (status || !value)
+ break;
+ }
+
+ if (unlikely(i == ACPI_EC_CLEAR_MAX))
+ pr_warn("Warning: Maximum of %d stale EC events cleared\n", i);
+ else
+ pr_info("%d stale EC events cleared\n", i);
+}
+
void acpi_ec_block_transactions(void)
{
struct acpi_ec *ec = first_ec;
@@ -472,6 +498,10 @@ void acpi_ec_unblock_transactions(void)
mutex_lock(&ec->lock);
/* Allow transactions to be carried out again */
clear_bit(EC_FLAGS_BLOCKED, &ec->flags);
+
+ if (EC_FLAGS_CLEAR_ON_RESUME)
+ acpi_ec_clear(ec);
+
mutex_unlock(&ec->lock);
}

@@ -828,6 +858,13 @@ static int acpi_ec_add(struct acpi_device *device)

/* EC is fully operational, allow queries */
clear_bit(EC_FLAGS_QUERY_PENDING, &ec->flags);
+
+ /* Clear stale _Q events if hardware might require that */
+ if (EC_FLAGS_CLEAR_ON_RESUME) {
+ mutex_lock(&ec->lock);
+ acpi_ec_clear(ec);
+ mutex_unlock(&ec->lock);
+ }
return ret;
}

@@ -929,6 +966,30 @@ static int ec_enlarge_storm_threshold(const struct dmi_system_id *id)
return 0;
}

+/*
+ * On some hardware it is necessary to clear events accumulated by the EC during
+ * sleep. These ECs stop reporting GPEs until they are manually polled, if too
+ * many events are accumulated. (e.g. Samsung Series 5/9 notebooks)
+ *
+ * https://bugzilla.kernel.org/show_bug.cgi?id=44161
+ *
+ * Ideally, the EC should also be instructed NOT to accumulate events during
+ * sleep (which Windows seems to do somehow), but the interface to control this
+ * behaviour is not known at this time.
+ *
+ * Models known to be affected are Samsung 530Uxx/535Uxx/540Uxx/550Pxx/900Xxx,
+ * however it is very likely that other Samsung models are affected.
+ *
+ * On systems which don't accumulate _Q events during sleep, this extra check
+ * should be harmless.
+ */
+static int ec_clear_on_resume(const struct dmi_system_id *id)
+{
+ pr_debug("Detected system needing EC poll on resume.\n");
+ EC_FLAGS_CLEAR_ON_RESUME = 1;
+ return 0;
+}
+
static struct dmi_system_id __initdata ec_dmi_table[] = {
{
ec_skip_dsdt_scan, "Compal JFL92", {
@@ -968,6 +1029,9 @@ static struct dmi_system_id __initdata ec_dmi_table[] = {
ec_validate_ecdt, "ASUS hardware", {
DMI_MATCH(DMI_SYS_VENDOR, "ASUSTek Computer Inc."),
DMI_MATCH(DMI_PRODUCT_NAME, "L4R"),}, NULL},
+ {
+ ec_clear_on_resume, "Samsung hardware", {
+ DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD.")}, NULL},
{},
};

diff --git a/drivers/acpi/processor_throttling.c b/drivers/acpi/processor_throttling.c
index 605a295..abe45cb 100644
--- a/drivers/acpi/processor_throttling.c
+++ b/drivers/acpi/processor_throttling.c
@@ -59,6 +59,12 @@ struct throttling_tstate {
int target_state; /* target T-state */
};

+struct acpi_processor_throttling_arg {
+ struct acpi_processor *pr;
+ int target_state;
+ bool force;
+};
+
#define THROTTLING_PRECHANGE (1)
#define THROTTLING_POSTCHANGE (2)

@@ -1063,16 +1069,24 @@ static int acpi_processor_set_throttling_ptc(struct acpi_processor *pr,
return 0;
}

+static long acpi_processor_throttling_fn(void *data)
+{
+ struct acpi_processor_throttling_arg *arg = data;
+ struct acpi_processor *pr = arg->pr;
+
+ return pr->throttling.acpi_processor_set_throttling(pr,
+ arg->target_state, arg->force);
+}
+
int acpi_processor_set_throttling(struct acpi_processor *pr,
int state, bool force)
{
- cpumask_var_t saved_mask;
int ret = 0;
unsigned int i;
struct acpi_processor *match_pr;
struct acpi_processor_throttling *p_throttling;
+ struct acpi_processor_throttling_arg arg;
struct throttling_tstate t_state;
- cpumask_var_t online_throttling_cpus;

if (!pr)
return -EINVAL;
@@ -1083,14 +1097,6 @@ int acpi_processor_set_throttling(struct acpi_processor *pr,
if ((state < 0) || (state > (pr->throttling.state_count - 1)))
return -EINVAL;

- if (!alloc_cpumask_var(&saved_mask, GFP_KERNEL))
- return -ENOMEM;
-
- if (!alloc_cpumask_var(&online_throttling_cpus, GFP_KERNEL)) {
- free_cpumask_var(saved_mask);
- return -ENOMEM;
- }
-
if (cpu_is_offline(pr->id)) {
/*
* the cpu pointed by pr->id is offline. Unnecessary to change
@@ -1099,17 +1105,15 @@ int acpi_processor_set_throttling(struct acpi_processor *pr,
return -ENODEV;
}

- cpumask_copy(saved_mask, &current->cpus_allowed);
t_state.target_state = state;
p_throttling = &(pr->throttling);
- cpumask_and(online_throttling_cpus, cpu_online_mask,
- p_throttling->shared_cpu_map);
+
/*
* The throttling notifier will be called for every
* affected cpu in order to get one proper T-state.
* The notifier event is THROTTLING_PRECHANGE.
*/
- for_each_cpu(i, online_throttling_cpus) {
+ for_each_cpu_and(i, cpu_online_mask, p_throttling->shared_cpu_map) {
t_state.cpu = i;
acpi_processor_throttling_notifier(THROTTLING_PRECHANGE,
&t_state);
@@ -1121,21 +1125,18 @@ int acpi_processor_set_throttling(struct acpi_processor *pr,
* it can be called only for the cpu pointed by pr.
*/
if (p_throttling->shared_type == DOMAIN_COORD_TYPE_SW_ANY) {
- /* FIXME: use work_on_cpu() */
- if (set_cpus_allowed_ptr(current, cpumask_of(pr->id))) {
- /* Can't migrate to the pr->id CPU. Exit */
- ret = -ENODEV;
- goto exit;
- }
- ret = p_throttling->acpi_processor_set_throttling(pr,
- t_state.target_state, force);
+ arg.pr = pr;
+ arg.target_state = state;
+ arg.force = force;
+ ret = work_on_cpu(pr->id, acpi_processor_throttling_fn, &arg);
} else {
/*
* When the T-state coordination is SW_ALL or HW_ALL,
* it is necessary to set T-state for every affected
* cpus.
*/
- for_each_cpu(i, online_throttling_cpus) {
+ for_each_cpu_and(i, cpu_online_mask,
+ p_throttling->shared_cpu_map) {
match_pr = per_cpu(processors, i);
/*
* If the pointer is invalid, we will report the
@@ -1156,13 +1157,12 @@ int acpi_processor_set_throttling(struct acpi_processor *pr,
"on CPU %d\n", i));
continue;
}
- t_state.cpu = i;
- /* FIXME: use work_on_cpu() */
- if (set_cpus_allowed_ptr(current, cpumask_of(i)))
- continue;
- ret = match_pr->throttling.
- acpi_processor_set_throttling(
- match_pr, t_state.target_state, force);
+
+ arg.pr = match_pr;
+ arg.target_state = state;
+ arg.force = force;
+ ret = work_on_cpu(pr->id, acpi_processor_throttling_fn,
+ &arg);
}
}
/*
@@ -1171,17 +1171,12 @@ int acpi_processor_set_throttling(struct acpi_processor *pr,
* affected cpu to update the T-states.
* The notifier event is THROTTLING_POSTCHANGE
*/
- for_each_cpu(i, online_throttling_cpus) {
+ for_each_cpu_and(i, cpu_online_mask, p_throttling->shared_cpu_map) {
t_state.cpu = i;
acpi_processor_throttling_notifier(THROTTLING_POSTCHANGE,
&t_state);
}
- /* restore the previous state */
- /* FIXME: use work_on_cpu() */
- set_cpus_allowed_ptr(current, saved_mask);
-exit:
- free_cpumask_var(online_throttling_cpus);
- free_cpumask_var(saved_mask);
+
return ret;
}

diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index e19898d..2ebfdd2 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -646,6 +646,7 @@ acpi_video_init_brightness(struct acpi_video_device *device)
union acpi_object *o;
struct acpi_video_device_brightness *br = NULL;
int result = -EINVAL;
+ u32 value;

if (!ACPI_SUCCESS(acpi_video_device_lcd_query_levels(device, &obj))) {
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Could not query available "
@@ -676,7 +677,12 @@ acpi_video_init_brightness(struct acpi_video_device *device)
printk(KERN_ERR PREFIX "Invalid data\n");
continue;
}
- br->levels[count] = (u32) o->integer.value;
+ value = (u32) o->integer.value;
+ /* Skip duplicate entries */
+ if (count > 2 && br->levels[count - 1] == value)
+ continue;
+
+ br->levels[count] = value;

if (br->levels[count] > max_level)
max_level = br->levels[count];
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index f4000ee..0feffc3 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -61,6 +61,7 @@ enum board_ids {
/* board IDs by feature in alphabetical order */
board_ahci,
board_ahci_ign_iferr,
+ board_ahci_noncq,
board_ahci_nosntf,
board_ahci_yes_fbs,

@@ -123,6 +124,13 @@ static const struct ata_port_info ahci_port_info[] = {
.udma_mask = ATA_UDMA6,
.port_ops = &ahci_ops,
},
+ [board_ahci_noncq] = {
+ AHCI_HFLAGS (AHCI_HFLAG_NO_NCQ),
+ .flags = AHCI_FLAG_COMMON,
+ .pio_mask = ATA_PIO4,
+ .udma_mask = ATA_UDMA6,
+ .port_ops = &ahci_ops,
+ },
[board_ahci_nosntf] =
{
AHCI_HFLAGS (AHCI_HFLAG_NO_SNTF),
@@ -458,6 +466,12 @@ static const struct pci_device_id ahci_pci_tbl[] = {
{ PCI_VDEVICE(ASMEDIA, 0x0611), board_ahci }, /* ASM1061 */
{ PCI_VDEVICE(ASMEDIA, 0x0612), board_ahci }, /* ASM1062 */

+ /*
+ * Samsung SSDs found on some macbooks. NCQ times out.
+ * https://bugzilla.kernel.org/show_bug.cgi?id=60731
+ */
+ { PCI_VDEVICE(SAMSUNG, 0x1600), board_ahci_noncq },
+
/* Enmotus */
{ PCI_DEVICE(0x1c44, 0x8000), board_ahci },

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 72bbb5e..b3f0f5a 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -2188,6 +2188,16 @@ int ata_dev_configure(struct ata_device *dev)
if (rc)
return rc;

+ /* some WD SATA-1 drives have issues with LPM, turn on NOLPM for them */
+ if ((dev->horkage & ATA_HORKAGE_WD_BROKEN_LPM) &&
+ (id[76] & 0xe) == 0x2)
+ dev->horkage |= ATA_HORKAGE_NOLPM;
+
+ if (dev->horkage & ATA_HORKAGE_NOLPM) {
+ ata_dev_warn(dev, "LPM support broken, forcing max_power\n");
+ dev->link->ap->target_lpm_policy = ATA_LPM_MAX_POWER;
+ }
+
/* let ACPI work its magic */
rc = ata_acpi_on_devcfg(dev);
if (rc)
@@ -4099,6 +4109,7 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = {

/* Seagate Momentus SpinPoint M8 seem to have FPMDA_AA issues */
{ "ST1000LM024 HN-M101MBB", "2AR10001", ATA_HORKAGE_BROKEN_FPDMA_AA },
+ { "ST1000LM024 HN-M101MBB", "2BA30001", ATA_HORKAGE_BROKEN_FPDMA_AA },

/* Blacklist entries taken from Silicon Image 3124/3132
Windows driver .inf file - also several Linux problem reports */
@@ -4143,6 +4154,23 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = {
{ "PIONEER DVD-RW DVR-212D", NULL, ATA_HORKAGE_NOSETXFER },
{ "PIONEER DVD-RW DVR-216D", NULL, ATA_HORKAGE_NOSETXFER },

+ /*
+ * Some WD SATA-I drives spin up and down erratically when the link
+ * is put into the slumber mode. We don't have full list of the
+ * affected devices. Disable LPM if the device matches one of the
+ * known prefixes and is SATA-1. As a side effect LPM partial is
+ * lost too.
+ *
+ * https://bugzilla.kernel.org/show_bug.cgi?id=57211
+ */
+ { "WDC WD800JD-*", NULL, ATA_HORKAGE_WD_BROKEN_LPM },
+ { "WDC WD1200JD-*", NULL, ATA_HORKAGE_WD_BROKEN_LPM },
+ { "WDC WD1600JD-*", NULL, ATA_HORKAGE_WD_BROKEN_LPM },
+ { "WDC WD2000JD-*", NULL, ATA_HORKAGE_WD_BROKEN_LPM },
+ { "WDC WD2500JD-*", NULL, ATA_HORKAGE_WD_BROKEN_LPM },
+ { "WDC WD3000JD-*", NULL, ATA_HORKAGE_WD_BROKEN_LPM },
+ { "WDC WD3200JD-*", NULL, ATA_HORKAGE_WD_BROKEN_LPM },
+
/* End Marker */
{ }
};
diff --git a/drivers/ata/libata-pmp.c b/drivers/ata/libata-pmp.c
index f5c35be..0ba32fe 100644
--- a/drivers/ata/libata-pmp.c
+++ b/drivers/ata/libata-pmp.c
@@ -447,8 +447,11 @@ static void sata_pmp_quirks(struct ata_port *ap)
* otherwise. Don't try hard to recover it.
*/
ap->pmp_link[ap->nr_pmp_links - 1].flags |= ATA_LFLAG_NO_RETRY;
- } else if (vendor == 0x197b && devid == 0x2352) {
- /* chip found in Thermaltake BlackX Duet, jmicron JMB350? */
+ } else if (vendor == 0x197b && (devid == 0x2352 || devid == 0x0325)) {
+ /*
+ * 0x2352: found in Thermaltake BlackX Duet, jmicron JMB350?
+ * 0x0325: jmicron JMB394.
+ */
ata_for_each_link(link, ap, EDGE) {
/* SRST breaks detection and disks get misclassified
* LPM disabled to avoid potential problems
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index dd332e5..8460e62 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -111,12 +111,14 @@ static const char *ata_lpm_policy_names[] = {
[ATA_LPM_MIN_POWER] = "min_power",
};

-static ssize_t ata_scsi_lpm_store(struct device *dev,
+static ssize_t ata_scsi_lpm_store(struct device *device,
struct device_attribute *attr,
const char *buf, size_t count)
{
- struct Scsi_Host *shost = class_to_shost(dev);
+ struct Scsi_Host *shost = class_to_shost(device);
struct ata_port *ap = ata_shost_to_port(shost);
+ struct ata_link *link;
+ struct ata_device *dev;
enum ata_lpm_policy policy;
unsigned long flags;

@@ -132,10 +134,20 @@ static ssize_t ata_scsi_lpm_store(struct device *dev,
return -EINVAL;

spin_lock_irqsave(ap->lock, flags);
+
+ ata_for_each_link(link, ap, EDGE) {
+ ata_for_each_dev(dev, &ap->link, ENABLED) {
+ if (dev->horkage & ATA_HORKAGE_NOLPM) {
+ count = -EOPNOTSUPP;
+ goto out_unlock;
+ }
+ }
+ }
+
ap->target_lpm_policy = policy;
ata_port_schedule_eh(ap);
+out_unlock:
spin_unlock_irqrestore(ap->lock, flags);
-
return count;
}

diff --git a/drivers/ata/sata_sil.c b/drivers/ata/sata_sil.c
index 9dfb40b..0c4ed89 100644
--- a/drivers/ata/sata_sil.c
+++ b/drivers/ata/sata_sil.c
@@ -157,6 +157,7 @@ static const struct sil_drivelist {
{ "ST380011ASL", SIL_QUIRK_MOD15WRITE },
{ "ST3120022ASL", SIL_QUIRK_MOD15WRITE },
{ "ST3160021ASL", SIL_QUIRK_MOD15WRITE },
+ { "TOSHIBA MK2561GSYN", SIL_QUIRK_MOD15WRITE },
{ "Maxtor 4D060H3", SIL_QUIRK_UDMA5MAX },
{ }
};
diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index 7b2ec59..96b8cb7 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -1281,13 +1281,16 @@ static void blkback_changed(struct xenbus_device *dev,
case XenbusStateReconfiguring:
case XenbusStateReconfigured:
case XenbusStateUnknown:
- case XenbusStateClosed:
break;

case XenbusStateConnected:
blkfront_connect(info);
break;

+ case XenbusStateClosed:
+ if (dev->state == XenbusStateClosed)
+ break;
+ /* Missed the backend's Closing state -- fallthrough */
case XenbusStateClosing:
blkfront_closing(info);
break;
diff --git a/drivers/char/raw.c b/drivers/char/raw.c
index b6de2c0..5ded1a5 100644
--- a/drivers/char/raw.c
+++ b/drivers/char/raw.c
@@ -190,7 +190,7 @@ static int bind_get(int number, dev_t *dev)
struct raw_device_data *rawdev;
struct block_device *bdev;

- if (number <= 0 || number >= MAX_RAW_MINORS)
+ if (number <= 0 || number >= max_raw_minors)
return -EINVAL;

rawdev = &raw_devices[number];
diff --git a/drivers/dma/ioat/dma.c b/drivers/dma/ioat/dma.c
index 6595180..3f89386 100644
--- a/drivers/dma/ioat/dma.c
+++ b/drivers/dma/ioat/dma.c
@@ -75,7 +75,8 @@ static irqreturn_t ioat_dma_do_interrupt(int irq, void *data)
attnstatus = readl(instance->reg_base + IOAT_ATTNSTATUS_OFFSET);
for_each_set_bit(bit, &attnstatus, BITS_PER_LONG) {
chan = ioat_chan_by_index(instance, bit);
- tasklet_schedule(&chan->cleanup_task);
+ if (test_bit(IOAT_RUN, &chan->state))
+ tasklet_schedule(&chan->cleanup_task);
}

writeb(intrctrl, instance->reg_base + IOAT_INTRCTRL_OFFSET);
@@ -91,7 +92,8 @@ static irqreturn_t ioat_dma_do_interrupt_msix(int irq, void *data)
{
struct ioat_chan_common *chan = data;

- tasklet_schedule(&chan->cleanup_task);
+ if (test_bit(IOAT_RUN, &chan->state))
+ tasklet_schedule(&chan->cleanup_task);

return IRQ_HANDLED;
}
@@ -113,7 +115,6 @@ void ioat_init_channel(struct ioatdma_device *device, struct ioat_chan_common *c
chan->timer.function = device->timer_fn;
chan->timer.data = data;
tasklet_init(&chan->cleanup_task, device->cleanup_fn, data);
- tasklet_disable(&chan->cleanup_task);
}

/**
@@ -356,13 +357,43 @@ static int ioat1_dma_alloc_chan_resources(struct dma_chan *c)
writel(((u64) chan->completion_dma) >> 32,
chan->reg_base + IOAT_CHANCMP_OFFSET_HIGH);

- tasklet_enable(&chan->cleanup_task);
+ set_bit(IOAT_RUN, &chan->state);
ioat1_dma_start_null_desc(ioat); /* give chain to dma device */
dev_dbg(to_dev(chan), "%s: allocated %d descriptors\n",
__func__, ioat->desccount);
return ioat->desccount;
}

+void ioat_stop(struct ioat_chan_common *chan)
+{
+ struct ioatdma_device *device = chan->device;
+ struct pci_dev *pdev = device->pdev;
+ int chan_id = chan_num(chan);
+
+ /* 1/ stop irq from firing tasklets
+ * 2/ stop the tasklet from re-arming irqs
+ */
+ clear_bit(IOAT_RUN, &chan->state);
+
+ /* flush inflight interrupts */
+#ifdef CONFIG_PCI_MSI
+ if (pdev->msix_enabled) {
+ struct msix_entry *msix = &device->msix_entries[chan_id];
+ synchronize_irq(msix->vector);
+ } else
+#endif
+ synchronize_irq(pdev->irq);
+
+ /* flush inflight timers */
+ del_timer_sync(&chan->timer);
+
+ /* flush inflight tasklet runs */
+ tasklet_kill(&chan->cleanup_task);
+
+ /* final cleanup now that everything is quiesced and can't re-arm */
+ device->cleanup_fn((unsigned long) &chan->common);
+}
+
/**
* ioat1_dma_free_chan_resources - release all the descriptors
* @chan: the channel to be cleaned
@@ -381,9 +412,7 @@ static void ioat1_dma_free_chan_resources(struct dma_chan *c)
if (ioat->desccount == 0)
return;

- tasklet_disable(&chan->cleanup_task);
- del_timer_sync(&chan->timer);
- ioat1_cleanup(ioat);
+ ioat_stop(chan);

/* Delay 100ms after reset to allow internal DMA logic to quiesce
* before removing DMA descriptor resources.
@@ -528,8 +557,11 @@ ioat1_dma_prep_memcpy(struct dma_chan *c, dma_addr_t dma_dest,
static void ioat1_cleanup_event(unsigned long data)
{
struct ioat_dma_chan *ioat = to_ioat_chan((void *) data);
+ struct ioat_chan_common *chan = &ioat->base;

ioat1_cleanup(ioat);
+ if (!test_bit(IOAT_RUN, &chan->state))
+ return;
writew(IOAT_CHANCTRL_RUN, ioat->base.reg_base + IOAT_CHANCTRL_OFFSET);
}

diff --git a/drivers/dma/ioat/dma.h b/drivers/dma/ioat/dma.h
index 8bebddd..466e0f34c 100644
--- a/drivers/dma/ioat/dma.h
+++ b/drivers/dma/ioat/dma.h
@@ -344,6 +344,7 @@ bool ioat_cleanup_preamble(struct ioat_chan_common *chan,
dma_addr_t *phys_complete);
void ioat_kobject_add(struct ioatdma_device *device, struct kobj_type *type);
void ioat_kobject_del(struct ioatdma_device *device);
+void ioat_stop(struct ioat_chan_common *chan);
extern const struct sysfs_ops ioat_sysfs_ops;
extern struct ioat_sysfs_entry ioat_version_attr;
extern struct ioat_sysfs_entry ioat_cap_attr;
diff --git a/drivers/dma/ioat/dma_v2.c b/drivers/dma/ioat/dma_v2.c
index cb8864d..e60933e 100644
--- a/drivers/dma/ioat/dma_v2.c
+++ b/drivers/dma/ioat/dma_v2.c
@@ -189,8 +189,11 @@ static void ioat2_cleanup(struct ioat2_dma_chan *ioat)
void ioat2_cleanup_event(unsigned long data)
{
struct ioat2_dma_chan *ioat = to_ioat2_chan((void *) data);
+ struct ioat_chan_common *chan = &ioat->base;

ioat2_cleanup(ioat);
+ if (!test_bit(IOAT_RUN, &chan->state))
+ return;
writew(IOAT_CHANCTRL_RUN, ioat->base.reg_base + IOAT_CHANCTRL_OFFSET);
}

@@ -542,10 +545,10 @@ int ioat2_alloc_chan_resources(struct dma_chan *c)
ioat->issued = 0;
ioat->tail = 0;
ioat->alloc_order = order;
+ set_bit(IOAT_RUN, &chan->state);
spin_unlock_bh(&ioat->prep_lock);
spin_unlock_bh(&chan->cleanup_lock);

- tasklet_enable(&chan->cleanup_task);
ioat2_start_null_desc(ioat);

/* check that we got off the ground */
@@ -555,7 +558,6 @@ int ioat2_alloc_chan_resources(struct dma_chan *c)
} while (i++ < 20 && !is_ioat_active(status) && !is_ioat_idle(status));

if (is_ioat_active(status) || is_ioat_idle(status)) {
- set_bit(IOAT_RUN, &chan->state);
return 1 << ioat->alloc_order;
} else {
u32 chanerr = readl(chan->reg_base + IOAT_CHANERR_OFFSET);
@@ -798,11 +800,8 @@ void ioat2_free_chan_resources(struct dma_chan *c)
if (!ioat->ring)
return;

- tasklet_disable(&chan->cleanup_task);
- del_timer_sync(&chan->timer);
- device->cleanup_fn((unsigned long) c);
+ ioat_stop(chan);
device->reset_hw(chan);
- clear_bit(IOAT_RUN, &chan->state);

spin_lock_bh(&chan->cleanup_lock);
spin_lock_bh(&ioat->prep_lock);
diff --git a/drivers/dma/ioat/dma_v3.c b/drivers/dma/ioat/dma_v3.c
index 714560f..8680031 100644
--- a/drivers/dma/ioat/dma_v3.c
+++ b/drivers/dma/ioat/dma_v3.c
@@ -325,8 +325,11 @@ static void ioat3_cleanup(struct ioat2_dma_chan *ioat)
static void ioat3_cleanup_event(unsigned long data)
{
struct ioat2_dma_chan *ioat = to_ioat2_chan((void *) data);
+ struct ioat_chan_common *chan = &ioat->base;

ioat3_cleanup(ioat);
+ if (!test_bit(IOAT_RUN, &chan->state))
+ return;
writew(IOAT_CHANCTRL_RUN, ioat->base.reg_base + IOAT_CHANCTRL_OFFSET);
}

diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c
index 13259ca..4b27c54 100644
--- a/drivers/dma/ste_dma40.c
+++ b/drivers/dma/ste_dma40.c
@@ -1202,6 +1202,7 @@ static void dma_tasklet(unsigned long data)
struct d40_chan *d40c = (struct d40_chan *) data;
struct d40_desc *d40d;
unsigned long flags;
+ bool callback_active;
dma_async_tx_callback callback;
void *callback_param;

@@ -1225,6 +1226,7 @@ static void dma_tasklet(unsigned long data)
}

/* Callback to client */
+ callback_active = !!(d40d->txd.flags & DMA_PREP_INTERRUPT);
callback = d40d->txd.callback;
callback_param = d40d->txd.callback_param;

@@ -1249,7 +1251,7 @@ static void dma_tasklet(unsigned long data)

spin_unlock_irqrestore(&d40c->lock, flags);

- if (callback && (d40d->txd.flags & DMA_PREP_INTERRUPT))
+ if (callback_active && callback)
callback(callback_param);

return;
diff --git a/drivers/edac/edac_mc.c b/drivers/edac/edac_mc.c
index d69144a..7db101b 100644
--- a/drivers/edac/edac_mc.c
+++ b/drivers/edac/edac_mc.c
@@ -323,7 +323,8 @@ static void edac_mc_workq_function(struct work_struct *work_req)
*
* called with the mem_ctls_mutex held
*/
-static void edac_mc_workq_setup(struct mem_ctl_info *mci, unsigned msec)
+static void edac_mc_workq_setup(struct mem_ctl_info *mci, unsigned msec,
+ bool init)
{
debugf0("%s()\n", __func__);

@@ -331,7 +332,9 @@ static void edac_mc_workq_setup(struct mem_ctl_info *mci, unsigned msec)
if (mci->op_state != OP_RUNNING_POLL)
return;

- INIT_DELAYED_WORK(&mci->work, edac_mc_workq_function);
+ if (init)
+ INIT_DELAYED_WORK(&mci->work, edac_mc_workq_function);
+
queue_delayed_work(edac_workqueue, &mci->work, msecs_to_jiffies(msec));
}

@@ -391,7 +394,7 @@ void edac_mc_reset_delay_period(int value)
list_for_each(item, &mc_devices) {
mci = list_entry(item, struct mem_ctl_info, link);

- edac_mc_workq_setup(mci, (unsigned long) value);
+ edac_mc_workq_setup(mci, value, false);
}

mutex_unlock(&mem_ctls_mutex);
@@ -539,7 +542,7 @@ int edac_mc_add_mc(struct mem_ctl_info *mci)
/* This instance is NOW RUNNING */
mci->op_state = OP_RUNNING_POLL;

- edac_mc_workq_setup(mci, edac_mc_get_poll_msec());
+ edac_mc_workq_setup(mci, edac_mc_get_poll_msec(), true);
} else {
mci->op_state = OP_RUNNING_INTERRUPT;
}
diff --git a/drivers/edac/i7300_edac.c b/drivers/edac/i7300_edac.c
index 2244df0..1e08426 100644
--- a/drivers/edac/i7300_edac.c
+++ b/drivers/edac/i7300_edac.c
@@ -962,33 +962,35 @@ static int __devinit i7300_get_devices(struct mem_ctl_info *mci)

/* Attempt to 'get' the MCH register we want */
pdev = NULL;
- while (!pvt->pci_dev_16_1_fsb_addr_map ||
- !pvt->pci_dev_16_2_fsb_err_regs) {
- pdev = pci_get_device(PCI_VENDOR_ID_INTEL,
- PCI_DEVICE_ID_INTEL_I7300_MCH_ERR, pdev);
- if (!pdev) {
- /* End of list, leave */
- i7300_printk(KERN_ERR,
- "'system address,Process Bus' "
- "device not found:"
- "vendor 0x%x device 0x%x ERR funcs "
- "(broken BIOS?)\n",
- PCI_VENDOR_ID_INTEL,
- PCI_DEVICE_ID_INTEL_I7300_MCH_ERR);
- goto error;
- }
-
+ while ((pdev = pci_get_device(PCI_VENDOR_ID_INTEL,
+ PCI_DEVICE_ID_INTEL_I7300_MCH_ERR,
+ pdev))) {
/* Store device 16 funcs 1 and 2 */
switch (PCI_FUNC(pdev->devfn)) {
case 1:
- pvt->pci_dev_16_1_fsb_addr_map = pdev;
+ if (!pvt->pci_dev_16_1_fsb_addr_map)
+ pvt->pci_dev_16_1_fsb_addr_map =
+ pci_dev_get(pdev);
break;
case 2:
- pvt->pci_dev_16_2_fsb_err_regs = pdev;
+ if (!pvt->pci_dev_16_2_fsb_err_regs)
+ pvt->pci_dev_16_2_fsb_err_regs =
+ pci_dev_get(pdev);
break;
}
}

+ if (!pvt->pci_dev_16_1_fsb_addr_map ||
+ !pvt->pci_dev_16_2_fsb_err_regs) {
+ /* At least one device was not found */
+ i7300_printk(KERN_ERR,
+ "'system address,Process Bus' device not found:"
+ "vendor 0x%x device 0x%x ERR funcs (broken BIOS?)\n",
+ PCI_VENDOR_ID_INTEL,
+ PCI_DEVICE_ID_INTEL_I7300_MCH_ERR);
+ goto error;
+ }
+
debugf1("System Address, processor bus- PCI Bus ID: %s %x:%x\n",
pci_name(pvt->pci_dev_16_0_fsb_ctlr),
pvt->pci_dev_16_0_fsb_ctlr->vendor,
diff --git a/drivers/edac/i7core_edac.c b/drivers/edac/i7core_edac.c
index b3ccefa..4c18b3c 100644
--- a/drivers/edac/i7core_edac.c
+++ b/drivers/edac/i7core_edac.c
@@ -1365,14 +1365,19 @@ static int i7core_get_onedevice(struct pci_dev **prev,
* is at addr 8086:2c40, instead of 8086:2c41. So, we need
* to probe for the alternate address in case of failure
*/
- if (dev_descr->dev_id == PCI_DEVICE_ID_INTEL_I7_NONCORE && !pdev)
+ if (dev_descr->dev_id == PCI_DEVICE_ID_INTEL_I7_NONCORE && !pdev) {
+ pci_dev_get(*prev); /* pci_get_device will put it */
pdev = pci_get_device(PCI_VENDOR_ID_INTEL,
PCI_DEVICE_ID_INTEL_I7_NONCORE_ALT, *prev);
+ }

- if (dev_descr->dev_id == PCI_DEVICE_ID_INTEL_LYNNFIELD_NONCORE && !pdev)
+ if (dev_descr->dev_id == PCI_DEVICE_ID_INTEL_LYNNFIELD_NONCORE &&
+ !pdev) {
+ pci_dev_get(*prev); /* pci_get_device will put it */
pdev = pci_get_device(PCI_VENDOR_ID_INTEL,
PCI_DEVICE_ID_INTEL_LYNNFIELD_NONCORE_ALT,
*prev);
+ }

if (!pdev) {
if (*prev) {
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 61b708b..2ea8a96 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -7252,6 +7252,20 @@ static int intel_gen7_queue_flip(struct drm_device *dev,
goto err_unpin;
}

+ /*
+ * BSpec MI_DISPLAY_FLIP for IVB:
+ * "The full packet must be contained within the same cache line."
+ *
+ * Currently the LRI+SRM+MI_DISPLAY_FLIP all fit within the same
+ * cacheline, if we ever start emitting more commands before
+ * the MI_DISPLAY_FLIP we may need to first emit everything else,
+ * then do the cacheline alignment, and finally emit the
+ * MI_DISPLAY_FLIP.
+ */
+ ret = intel_ring_cacheline_align(ring);
+ if (ret)
+ goto err_unpin;
+
ret = intel_ring_begin(ring, 4);
if (ret)
goto err_unpin;
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 72163e8..ca75076 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -483,6 +483,7 @@ intel_dp_aux_native_write(struct intel_dp *intel_dp,
uint8_t msg[20];
int msg_bytes;
uint8_t ack;
+ int retry;

intel_dp_check_edp(intel_dp);
if (send_bytes > 16)
@@ -493,18 +494,20 @@ intel_dp_aux_native_write(struct intel_dp *intel_dp,
msg[3] = send_bytes - 1;
memcpy(&msg[4], send, send_bytes);
msg_bytes = send_bytes + 4;
- for (;;) {
+ for (retry = 0; retry < 7; retry++) {
ret = intel_dp_aux_ch(intel_dp, msg, msg_bytes, &ack, 1);
if (ret < 0)
return ret;
if ((ack & AUX_NATIVE_REPLY_MASK) == AUX_NATIVE_REPLY_ACK)
- break;
+ return send_bytes;
else if ((ack & AUX_NATIVE_REPLY_MASK) == AUX_NATIVE_REPLY_DEFER)
- udelay(100);
+ usleep_range(400, 500);
else
return -EIO;
}
- return send_bytes;
+
+ DRM_ERROR("too many retries, giving up\n");
+ return -EIO;
}

/* Write a single byte to the aux channel in native mode */
@@ -526,6 +529,7 @@ intel_dp_aux_native_read(struct intel_dp *intel_dp,
int reply_bytes;
uint8_t ack;
int ret;
+ int retry;

intel_dp_check_edp(intel_dp);
msg[0] = AUX_NATIVE_READ << 4;
@@ -536,7 +540,7 @@ intel_dp_aux_native_read(struct intel_dp *intel_dp,
msg_bytes = 4;
reply_bytes = recv_bytes + 1;

- for (;;) {
+ for (retry = 0; retry < 7; retry++) {
ret = intel_dp_aux_ch(intel_dp, msg, msg_bytes,
reply, reply_bytes);
if (ret == 0)
@@ -549,10 +553,13 @@ intel_dp_aux_native_read(struct intel_dp *intel_dp,
return ret - 1;
}
else if ((ack & AUX_NATIVE_REPLY_MASK) == AUX_NATIVE_REPLY_DEFER)
- udelay(100);
+ usleep_range(400, 500);
else
return -EIO;
}
+
+ DRM_ERROR("too many retries, giving up\n");
+ return -EIO;
}

static int
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 3c55cf6..8ee068e 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -1213,6 +1213,27 @@ int intel_ring_begin(struct intel_ring_buffer *ring,
return 0;
}

+/* Align the ring tail to a cacheline boundary */
+int intel_ring_cacheline_align(struct intel_ring_buffer *ring)
+{
+ int num_dwords = (64 - (ring->tail & 63)) / sizeof(uint32_t);
+ int ret;
+
+ if (num_dwords == 0)
+ return 0;
+
+ ret = intel_ring_begin(ring, num_dwords);
+ if (ret)
+ return ret;
+
+ while (num_dwords--)
+ intel_ring_emit(ring, MI_NOOP);
+
+ intel_ring_advance(ring);
+
+ return 0;
+}
+
void intel_ring_advance(struct intel_ring_buffer *ring)
{
ring->tail &= ring->size - 1;
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h
index 68281c9..d83cc97 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.h
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.h
@@ -174,6 +174,7 @@ static inline int intel_wait_ring_idle(struct intel_ring_buffer *ring)
}

int __must_check intel_ring_begin(struct intel_ring_buffer *ring, int n);
+int __must_check intel_ring_cacheline_align(struct intel_ring_buffer *ring);

static inline void intel_ring_emit(struct intel_ring_buffer *ring,
u32 data)
diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c
index 038570a..cd98c06 100644
--- a/drivers/gpu/drm/radeon/atombios_crtc.c
+++ b/drivers/gpu/drm/radeon/atombios_crtc.c
@@ -956,10 +956,13 @@ static void atombios_crtc_set_pll(struct drm_crtc *crtc, struct drm_display_mode
ss_enabled =
radeon_atombios_get_ppll_ss_info(rdev, &ss,
ATOM_DP_SS_ID1);
- } else
+ } else {
ss_enabled =
radeon_atombios_get_ppll_ss_info(rdev, &ss,
ATOM_DP_SS_ID1);
+ }
+ /* disable spread spectrum on DCE3 DP */
+ ss_enabled = false;
}
break;
case ATOM_ENCODER_MODE_LVDS:
diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
index 57e45c6..f7e3cc0 100644
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -2315,14 +2315,18 @@ int r600_ring_test(struct radeon_device *rdev)
void r600_fence_ring_emit(struct radeon_device *rdev,
struct radeon_fence *fence)
{
+ u32 cp_coher_cntl = PACKET3_TC_ACTION_ENA | PACKET3_VC_ACTION_ENA |
+ PACKET3_SH_ACTION_ENA;
+
+ if (rdev->family >= CHIP_RV770)
+ cp_coher_cntl |= PACKET3_FULL_CACHE_ENA;
+
if (rdev->wb.use_event) {
u64 addr = rdev->wb.gpu_addr + R600_WB_EVENT_OFFSET +
(u64)(rdev->fence_drv.scratch_reg - rdev->scratch.reg_base);
/* flush read cache over gart */
radeon_ring_write(rdev, PACKET3(PACKET3_SURFACE_SYNC, 3));
- radeon_ring_write(rdev, PACKET3_TC_ACTION_ENA |
- PACKET3_VC_ACTION_ENA |
- PACKET3_SH_ACTION_ENA);
+ radeon_ring_write(rdev, cp_coher_cntl);
radeon_ring_write(rdev, 0xFFFFFFFF);
radeon_ring_write(rdev, 0);
radeon_ring_write(rdev, 10); /* poll interval */
@@ -2336,9 +2340,7 @@ void r600_fence_ring_emit(struct radeon_device *rdev,
} else {
/* flush read cache over gart */
radeon_ring_write(rdev, PACKET3(PACKET3_SURFACE_SYNC, 3));
- radeon_ring_write(rdev, PACKET3_TC_ACTION_ENA |
- PACKET3_VC_ACTION_ENA |
- PACKET3_SH_ACTION_ENA);
+ radeon_ring_write(rdev, cp_coher_cntl);
radeon_ring_write(rdev, 0xFFFFFFFF);
radeon_ring_write(rdev, 0);
radeon_ring_write(rdev, 10); /* poll interval */
diff --git a/drivers/gpu/drm/radeon/r600d.h b/drivers/gpu/drm/radeon/r600d.h
index d4d23a8d..cb29480 100644
--- a/drivers/gpu/drm/radeon/r600d.h
+++ b/drivers/gpu/drm/radeon/r600d.h
@@ -838,6 +838,7 @@
#define PACKET3_INDIRECT_BUFFER 0x32
#define PACKET3_SURFACE_SYNC 0x43
# define PACKET3_CB0_DEST_BASE_ENA (1 << 6)
+# define PACKET3_FULL_CACHE_ENA (1 << 20) /* r7xx+ only */
# define PACKET3_TC_ACTION_ENA (1 << 23)
# define PACKET3_VC_ACTION_ENA (1 << 24)
# define PACKET3_CB_ACTION_ENA (1 << 25)
diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c
index cda89c6b..e4e455e 100644
--- a/drivers/gpu/drm/radeon/radeon_atombios.c
+++ b/drivers/gpu/drm/radeon/radeon_atombios.c
@@ -2735,6 +2735,10 @@ void radeon_atom_initialize_bios_scratch_regs(struct drm_device *dev)
/* tell the bios not to handle mode switching */
bios_6_scratch |= ATOM_S6_ACC_BLOCK_DISPLAY_SWITCH;

+ /* clear the vbios dpms state */
+ if (ASIC_IS_DCE4(rdev))
+ bios_2_scratch &= ~ATOM_S2_DEVICE_DPMS_STATE;
+
if (rdev->family >= CHIP_R600) {
WREG32(R600_BIOS_2_SCRATCH, bios_2_scratch);
WREG32(R600_BIOS_6_SCRATCH, bios_6_scratch);
diff --git a/drivers/gpu/drm/radeon/radeon_i2c.c b/drivers/gpu/drm/radeon/radeon_i2c.c
index cf20351..894b5f0 100644
--- a/drivers/gpu/drm/radeon/radeon_i2c.c
+++ b/drivers/gpu/drm/radeon/radeon_i2c.c
@@ -998,6 +998,9 @@ void radeon_i2c_destroy(struct radeon_i2c_chan *i2c)
/* Add the default buses */
void radeon_i2c_init(struct radeon_device *rdev)
{
+ if (radeon_hw_i2c)
+ DRM_INFO("hw_i2c forced on, you may experience display detection problems!\n");
+
if (rdev->is_atom_bios)
radeon_atombios_i2c_init(rdev);
else
diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c
index d58eccb..b0a0ee4 100644
--- a/drivers/gpu/drm/radeon/radeon_pm.c
+++ b/drivers/gpu/drm/radeon/radeon_pm.c
@@ -573,8 +573,10 @@ void radeon_pm_resume(struct radeon_device *rdev)
rdev->pm.current_clock_mode_index = 0;
rdev->pm.current_sclk = rdev->pm.default_sclk;
rdev->pm.current_mclk = rdev->pm.default_mclk;
- rdev->pm.current_vddc = rdev->pm.power_state[rdev->pm.default_power_state_index].clock_info[0].voltage.voltage;
- rdev->pm.current_vddci = rdev->pm.power_state[rdev->pm.default_power_state_index].clock_info[0].voltage.vddci;
+ if (rdev->pm.power_state) {
+ rdev->pm.current_vddc = rdev->pm.power_state[rdev->pm.default_power_state_index].clock_info[0].voltage.voltage;
+ rdev->pm.current_vddci = rdev->pm.power_state[rdev->pm.default_power_state_index].clock_info[0].voltage.vddci;
+ }
if (rdev->pm.pm_method == PM_METHOD_DYNPM
&& rdev->pm.dynpm_state == DYNPM_STATE_SUSPENDED) {
rdev->pm.dynpm_state = DYNPM_STATE_ACTIVE;
diff --git a/drivers/hv/connection.c b/drivers/hv/connection.c
index 650c9f0..d7f3df9 100644
--- a/drivers/hv/connection.c
+++ b/drivers/hv/connection.c
@@ -45,7 +45,6 @@ struct vmbus_connection vmbus_connection = {
int vmbus_connect(void)
{
int ret = 0;
- int t;
struct vmbus_channel_msginfo *msginfo = NULL;
struct vmbus_channel_initiate_contact *msg;
unsigned long flags;
@@ -132,16 +131,7 @@ int vmbus_connect(void)
}

/* Wait for the connection response */
- t = wait_for_completion_timeout(&msginfo->waitevent, 5*HZ);
- if (t == 0) {
- spin_lock_irqsave(&vmbus_connection.channelmsg_lock,
- flags);
- list_del(&msginfo->msglistentry);
- spin_unlock_irqrestore(&vmbus_connection.channelmsg_lock,
- flags);
- ret = -ETIMEDOUT;
- goto cleanup;
- }
+ wait_for_completion(&msginfo->waitevent);

spin_lock_irqsave(&vmbus_connection.channelmsg_lock, flags);
list_del(&msginfo->msglistentry);
diff --git a/drivers/hwmon/max1668.c b/drivers/hwmon/max1668.c
index 20d1b2d..e19fef7 100644
--- a/drivers/hwmon/max1668.c
+++ b/drivers/hwmon/max1668.c
@@ -243,7 +243,7 @@ static ssize_t set_temp_min(struct device *dev,
data->temp_min[index] = SENSORS_LIMIT(temp/1000, -128, 127);
if (i2c_smbus_write_byte_data(client,
MAX1668_REG_LIML_WR(index),
- data->temp_max[index]))
+ data->temp_min[index]))
count = -EIO;
mutex_unlock(&data->update_lock);

diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index dbd4fa5..949ea640 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -137,6 +137,7 @@ config I2C_PIIX4
ATI SB700
ATI SB800
AMD Hudson-2
+ AMD ML
AMD CZ
Serverworks OSB4
Serverworks CSB5
diff --git a/drivers/i2c/busses/i2c-piix4.c b/drivers/i2c/busses/i2c-piix4.c
index 14b588c..c60f8e1 100644
--- a/drivers/i2c/busses/i2c-piix4.c
+++ b/drivers/i2c/busses/i2c-piix4.c
@@ -22,7 +22,7 @@
Intel PIIX4, 440MX
Serverworks OSB4, CSB5, CSB6, HT-1000, HT-1100
ATI IXP200, IXP300, IXP400, SB600, SB700, SB800
- AMD Hudson-2, CZ
+ AMD Hudson-2, ML, CZ
SMSC Victory66

Note: we assume there can only be one device, with one SMBus interface.
@@ -231,7 +231,8 @@ static int __devinit piix4_setup_sb800(struct pci_dev *PIIX4_dev,
const struct pci_device_id *id)
{
unsigned short smba_idx = 0xcd6;
- u8 smba_en_lo, smba_en_hi, i2ccfg, i2ccfg_offset = 0x10, smb_en = 0x2c;
+ u8 smba_en_lo, smba_en_hi, smb_en, smb_en_status;
+ u8 i2ccfg, i2ccfg_offset = 0x10;

/* SB800 and later SMBus does not support forcing address */
if (force || force_addr) {
@@ -241,6 +242,16 @@ static int __devinit piix4_setup_sb800(struct pci_dev *PIIX4_dev,
}

/* Determine the address of the SMBus areas */
+ if ((PIIX4_dev->vendor == PCI_VENDOR_ID_AMD &&
+ PIIX4_dev->device == PCI_DEVICE_ID_AMD_HUDSON2_SMBUS &&
+ PIIX4_dev->revision >= 0x41) ||
+ (PIIX4_dev->vendor == PCI_VENDOR_ID_AMD &&
+ PIIX4_dev->device == 0x790b &&
+ PIIX4_dev->revision >= 0x49))
+ smb_en = 0x00;
+ else
+ smb_en = 0x2c;
+
if (!request_region(smba_idx, 2, "smba_idx")) {
dev_err(&PIIX4_dev->dev, "SMBus base address index region "
"0x%x already in use!\n", smba_idx);
@@ -252,13 +263,20 @@ static int __devinit piix4_setup_sb800(struct pci_dev *PIIX4_dev,
smba_en_hi = inb_p(smba_idx + 1);
release_region(smba_idx, 2);

- if ((smba_en_lo & 1) == 0) {
+ if (!smb_en) {
+ smb_en_status = smba_en_lo & 0x10;
+ piix4_smba = smba_en_hi << 8;
+ } else {
+ smb_en_status = smba_en_lo & 0x01;
+ piix4_smba = ((smba_en_hi << 8) | smba_en_lo) & 0xffe0;
+ }
+
+ if (!smb_en_status) {
dev_err(&PIIX4_dev->dev,
"Host SMBus controller not enabled!\n");
return -ENODEV;
}

- piix4_smba = ((smba_en_hi << 8) | smba_en_lo) & 0xffe0;
if (acpi_check_region(piix4_smba, SMBIOSIZE, piix4_driver.name))
return -ENODEV;

diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c
index 4fa2b11..44fde43 100644
--- a/drivers/idle/intel_idle.c
+++ b/drivers/idle/intel_idle.c
@@ -584,8 +584,9 @@ static int __init intel_idle_init(void)
intel_idle_cpuidle_driver_init();
retval = cpuidle_register_driver(&intel_idle_driver);
if (retval) {
+ struct cpuidle_driver *drv = cpuidle_get_driver();
printk(KERN_DEBUG PREFIX "intel_idle yielding to %s",
- cpuidle_get_driver()->name);
+ drv ? drv->name : "none");
return retval;
}

diff --git a/drivers/infiniband/hw/qib/qib_iba7322.c b/drivers/infiniband/hw/qib/qib_iba7322.c
index 5a070e8..d8517fc 100644
--- a/drivers/infiniband/hw/qib/qib_iba7322.c
+++ b/drivers/infiniband/hw/qib/qib_iba7322.c
@@ -2279,6 +2279,11 @@ static int qib_7322_bringup_serdes(struct qib_pportdata *ppd)
qib_write_kreg_port(ppd, krp_ibcctrl_a, ppd->cpspec->ibcctrl_a);
qib_write_kreg(dd, kr_scratch, 0ULL);

+ /* ensure previous Tx parameters are not still forced */
+ qib_write_kreg_port(ppd, krp_tx_deemph_override,
+ SYM_MASK(IBSD_TX_DEEMPHASIS_OVERRIDE_0,
+ reset_tx_deemphasis_override));
+
if (qib_compat_ddr_negotiate) {
ppd->cpspec->ibdeltainprog = 1;
ppd->cpspec->ibsymsnap = read_7322_creg32_port(ppd,
diff --git a/drivers/infiniband/hw/qib/qib_ud.c b/drivers/infiniband/hw/qib/qib_ud.c
index 828609f..c0d93d4 100644
--- a/drivers/infiniband/hw/qib/qib_ud.c
+++ b/drivers/infiniband/hw/qib/qib_ud.c
@@ -57,13 +57,20 @@ static void qib_ud_loopback(struct qib_qp *sqp, struct qib_swqe *swqe)
struct qib_sge *sge;
struct ib_wc wc;
u32 length;
+ enum ib_qp_type sqptype, dqptype;

qp = qib_lookup_qpn(ibp, swqe->wr.wr.ud.remote_qpn);
if (!qp) {
ibp->n_pkt_drops++;
return;
}
- if (qp->ibqp.qp_type != sqp->ibqp.qp_type ||
+
+ sqptype = sqp->ibqp.qp_type == IB_QPT_GSI ?
+ IB_QPT_UD : sqp->ibqp.qp_type;
+ dqptype = qp->ibqp.qp_type == IB_QPT_GSI ?
+ IB_QPT_UD : qp->ibqp.qp_type;
+
+ if (dqptype != sqptype ||
!(ib_qib_state_ops[qp->state] & QIB_PROCESS_RECV_OK)) {
ibp->n_pkt_drops++;
goto drop;
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index b4a4aaf..1a51b3d 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -884,7 +884,7 @@ static void dma_pte_free_level(struct dmar_domain *domain, int level,

/* If range covers entire pagetable, free it */
if (!(start_pfn > level_pfn ||
- last_pfn < level_pfn + level_size(level))) {
+ last_pfn < level_pfn + level_size(level) - 1)) {
dma_clear_pte(pte);
domain_flush_cache(domain, pte, sizeof(*pte));
free_pgtable_page(level_pte);
diff --git a/drivers/md/Kconfig b/drivers/md/Kconfig
index faa4741..e10b6bb 100644
--- a/drivers/md/Kconfig
+++ b/drivers/md/Kconfig
@@ -185,8 +185,12 @@ config MD_FAULTY

In unsure, say N.

+config BLK_DEV_DM_BUILTIN
+ boolean
+
config BLK_DEV_DM
tristate "Device mapper support"
+ select BLK_DEV_DM_BUILTIN
---help---
Device-mapper is a low level volume manager. It works by allowing
people to specify mappings for ranges of logical sectors. Various
diff --git a/drivers/md/Makefile b/drivers/md/Makefile
index 046860c..f67dec3 100644
--- a/drivers/md/Makefile
+++ b/drivers/md/Makefile
@@ -28,6 +28,7 @@ obj-$(CONFIG_MD_MULTIPATH) += multipath.o
obj-$(CONFIG_MD_FAULTY) += faulty.o
obj-$(CONFIG_BLK_DEV_MD) += md-mod.o
obj-$(CONFIG_BLK_DEV_DM) += dm-mod.o
+obj-$(CONFIG_BLK_DEV_DM_BUILTIN) += dm-builtin.o
obj-$(CONFIG_DM_BUFIO) += dm-bufio.o
obj-$(CONFIG_DM_CRYPT) += dm-crypt.o
obj-$(CONFIG_DM_DELAY) += dm-delay.o
diff --git a/drivers/md/dm-builtin.c b/drivers/md/dm-builtin.c
new file mode 100644
index 0000000..8b82788
--- /dev/null
+++ b/drivers/md/dm-builtin.c
@@ -0,0 +1,49 @@
+#include <linux/export.h>
+#include "dm.h"
+
+/*
+ * The kobject release method must not be placed in the module itself,
+ * otherwise we are subject to module unload races.
+ *
+ * The release method is called when the last reference to the kobject is
+ * dropped. It may be called by any other kernel code that drops the last
+ * reference.
+ *
+ * The release method suffers from module unload race. We may prevent the
+ * module from being unloaded at the start of the release method (using
+ * increased module reference count or synchronizing against the release
+ * method), however there is no way to prevent the module from being
+ * unloaded at the end of the release method.
+ *
+ * If this code were placed in the dm module, the following race may
+ * happen:
+ * 1. Some other process takes a reference to dm kobject
+ * 2. The user issues ioctl function to unload the dm device
+ * 3. dm_sysfs_exit calls kobject_put, however the object is not released
+ * because of the other reference taken at step 1
+ * 4. dm_sysfs_exit waits on the completion
+ * 5. The other process that took the reference in step 1 drops it,
+ * dm_kobject_release is called from this process
+ * 6. dm_kobject_release calls complete()
+ * 7. a reschedule happens before dm_kobject_release returns
+ * 8. dm_sysfs_exit continues, the dm device is unloaded, module reference
+ * count is decremented
+ * 9. The user unloads the dm module
+ * 10. The other process that was rescheduled in step 7 continues to run,
+ * it is now executing code in unloaded module, so it crashes
+ *
+ * Note that if the process that takes the foreign reference to dm kobject
+ * has a low priority and the system is sufficiently loaded with
+ * higher-priority processes that prevent the low-priority process from
+ * being scheduled long enough, this bug may really happen.
+ *
+ * In order to fix this module unload race, we place the release method
+ * into a helper code that is compiled directly into the kernel.
+ */
+
+void dm_kobject_release(struct kobject *kobj)
+{
+ complete(dm_get_completion_from_kobject(kobj));
+}
+
+EXPORT_SYMBOL(dm_kobject_release);
diff --git a/drivers/md/dm-sysfs.c b/drivers/md/dm-sysfs.c
index 84d2b91..c62c5ab 100644
--- a/drivers/md/dm-sysfs.c
+++ b/drivers/md/dm-sysfs.c
@@ -86,6 +86,7 @@ static const struct sysfs_ops dm_sysfs_ops = {
static struct kobj_type dm_ktype = {
.sysfs_ops = &dm_sysfs_ops,
.default_attrs = dm_attrs,
+ .release = dm_kobject_release,
};

/*
@@ -104,5 +105,7 @@ int dm_sysfs_init(struct mapped_device *md)
*/
void dm_sysfs_exit(struct mapped_device *md)
{
- kobject_put(dm_kobject(md));
+ struct kobject *kobj = dm_kobject(md);
+ kobject_put(kobj);
+ wait_for_completion(dm_get_completion_from_kobject(kobj));
}
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 8953630..7ead065 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -192,8 +192,8 @@ struct mapped_device {
/* forced geometry settings */
struct hd_geometry geometry;

- /* sysfs handle */
- struct kobject kobj;
+ /* kobject and completion */
+ struct dm_kobject_holder kobj_holder;

/* zero-length flush that will be cloned and submitted to targets */
struct bio flush_bio;
@@ -1891,6 +1891,7 @@ static struct mapped_device *alloc_dev(int minor)
init_waitqueue_head(&md->wait);
INIT_WORK(&md->work, dm_wq_work);
init_waitqueue_head(&md->eventq);
+ init_completion(&md->kobj_holder.completion);

md->disk->major = _major;
md->disk->first_minor = minor;
@@ -2682,7 +2683,7 @@ struct gendisk *dm_disk(struct mapped_device *md)

struct kobject *dm_kobject(struct mapped_device *md)
{
- return &md->kobj;
+ return &md->kobj_holder.kobj;
}

/*
@@ -2693,9 +2694,7 @@ struct mapped_device *dm_get_from_kobject(struct kobject *kobj)
{
struct mapped_device *md;

- md = container_of(kobj, struct mapped_device, kobj);
- if (&md->kobj != kobj)
- return NULL;
+ md = container_of(kobj, struct mapped_device, kobj_holder.kobj);

if (test_bit(DMF_FREEING, &md->flags) ||
dm_deleting_md(md))
diff --git a/drivers/md/dm.h b/drivers/md/dm.h
index b7dacd5..9db80c9 100644
--- a/drivers/md/dm.h
+++ b/drivers/md/dm.h
@@ -15,6 +15,8 @@
#include <linux/list.h>
#include <linux/blkdev.h>
#include <linux/hdreg.h>
+#include <linux/completion.h>
+#include <linux/kobject.h>

/*
* Suspend feature flags
@@ -119,12 +121,27 @@ void dm_interface_exit(void);
/*
* sysfs interface
*/
+struct dm_kobject_holder {
+ struct kobject kobj;
+ struct completion completion;
+};
+
+static inline struct completion *dm_get_completion_from_kobject(struct kobject *kobj)
+{
+ return &container_of(kobj, struct dm_kobject_holder, kobj)->completion;
+}
+
int dm_sysfs_init(struct mapped_device *md);
void dm_sysfs_exit(struct mapped_device *md);
struct kobject *dm_kobject(struct mapped_device *md);
struct mapped_device *dm_get_from_kobject(struct kobject *kobj);

/*
+ * The kobject helper
+ */
+void dm_kobject_release(struct kobject *kobj);
+
+/*
* Targets for linear and striped mappings
*/
int dm_linear_init(void);
diff --git a/drivers/md/persistent-data/dm-space-map-common.c b/drivers/md/persistent-data/dm-space-map-common.c
index df2494c..8c5b824 100644
--- a/drivers/md/persistent-data/dm-space-map-common.c
+++ b/drivers/md/persistent-data/dm-space-map-common.c
@@ -244,6 +244,10 @@ int sm_ll_extend(struct ll_disk *ll, dm_block_t extra_blocks)
return -EINVAL;
}

+ /*
+ * We need to set this before the dm_tm_new_block() call below.
+ */
+ ll->nr_blocks = nr_blocks;
for (i = old_blocks; i < blocks; i++) {
struct dm_block *b;
struct disk_index_entry idx;
@@ -251,6 +255,7 @@ int sm_ll_extend(struct ll_disk *ll, dm_block_t extra_blocks)
r = dm_tm_new_block(ll->tm, &dm_sm_bitmap_validator, &b);
if (r < 0)
return r;
+
idx.blocknr = cpu_to_le64(dm_block_location(b));

r = dm_tm_unlock(ll->tm, b);
@@ -265,7 +270,6 @@ int sm_ll_extend(struct ll_disk *ll, dm_block_t extra_blocks)
return r;
}

- ll->nr_blocks = nr_blocks;
return 0;
}

diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index fb67833..7c963c4 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -1693,6 +1693,7 @@ static void raid5_end_write_request(struct bio *bi, int error)
}

if (!uptodate) {
+ set_bit(STRIPE_DEGRADED, &sh->state);
set_bit(WriteErrorSeen, &conf->disks[i].rdev->flags);
set_bit(R5_WriteError, &sh->dev[i].flags);
} else if (is_badblock(conf->disks[i].rdev, sh->sector, STRIPE_SECTORS,
@@ -4449,23 +4450,43 @@ raid5_size(struct mddev *mddev, sector_t sectors, int raid_disks)
return sectors * (raid_disks - conf->max_degraded);
}

+static void free_scratch_buffer(struct r5conf *conf, struct raid5_percpu *percpu)
+{
+ safe_put_page(percpu->spare_page);
+ kfree(percpu->scribble);
+ percpu->spare_page = NULL;
+ percpu->scribble = NULL;
+}
+
+static int alloc_scratch_buffer(struct r5conf *conf, struct raid5_percpu *percpu)
+{
+ if (conf->level == 6 && !percpu->spare_page)
+ percpu->spare_page = alloc_page(GFP_KERNEL);
+ if (!percpu->scribble)
+ percpu->scribble = kmalloc(conf->scribble_len, GFP_KERNEL);
+
+ if (!percpu->scribble || (conf->level == 6 && !percpu->spare_page)) {
+ free_scratch_buffer(conf, percpu);
+ return -ENOMEM;
+ }
+
+ return 0;
+}
+
static void raid5_free_percpu(struct r5conf *conf)
{
- struct raid5_percpu *percpu;
unsigned long cpu;

if (!conf->percpu)
return;

- get_online_cpus();
- for_each_possible_cpu(cpu) {
- percpu = per_cpu_ptr(conf->percpu, cpu);
- safe_put_page(percpu->spare_page);
- kfree(percpu->scribble);
- }
#ifdef CONFIG_HOTPLUG_CPU
unregister_cpu_notifier(&conf->cpu_notify);
#endif
+
+ get_online_cpus();
+ for_each_possible_cpu(cpu)
+ free_scratch_buffer(conf, per_cpu_ptr(conf->percpu, cpu));
put_online_cpus();

free_percpu(conf->percpu);
@@ -4491,15 +4512,7 @@ static int raid456_cpu_notify(struct notifier_block *nfb, unsigned long action,
switch (action) {
case CPU_UP_PREPARE:
case CPU_UP_PREPARE_FROZEN:
- if (conf->level == 6 && !percpu->spare_page)
- percpu->spare_page = alloc_page(GFP_KERNEL);
- if (!percpu->scribble)
- percpu->scribble = kmalloc(conf->scribble_len, GFP_KERNEL);
-
- if (!percpu->scribble ||
- (conf->level == 6 && !percpu->spare_page)) {
- safe_put_page(percpu->spare_page);
- kfree(percpu->scribble);
+ if (alloc_scratch_buffer(conf, percpu)) {
pr_err("%s: failed memory allocation for cpu%ld\n",
__func__, cpu);
return notifier_from_errno(-ENOMEM);
@@ -4507,10 +4520,7 @@ static int raid456_cpu_notify(struct notifier_block *nfb, unsigned long action,
break;
case CPU_DEAD:
case CPU_DEAD_FROZEN:
- safe_put_page(percpu->spare_page);
- kfree(percpu->scribble);
- percpu->spare_page = NULL;
- percpu->scribble = NULL;
+ free_scratch_buffer(conf, per_cpu_ptr(conf->percpu, cpu));
break;
default:
break;
@@ -4522,40 +4532,29 @@ static int raid456_cpu_notify(struct notifier_block *nfb, unsigned long action,
static int raid5_alloc_percpu(struct r5conf *conf)
{
unsigned long cpu;
- struct page *spare_page;
- struct raid5_percpu __percpu *allcpus;
- void *scribble;
- int err;
+ int err = 0;

- allcpus = alloc_percpu(struct raid5_percpu);
- if (!allcpus)
+ conf->percpu = alloc_percpu(struct raid5_percpu);
+ if (!conf->percpu)
return -ENOMEM;
- conf->percpu = allcpus;
+
+#ifdef CONFIG_HOTPLUG_CPU
+ conf->cpu_notify.notifier_call = raid456_cpu_notify;
+ conf->cpu_notify.priority = 0;
+ err = register_cpu_notifier(&conf->cpu_notify);
+ if (err)
+ return err;
+#endif

get_online_cpus();
- err = 0;
for_each_present_cpu(cpu) {
- if (conf->level == 6) {
- spare_page = alloc_page(GFP_KERNEL);
- if (!spare_page) {
- err = -ENOMEM;
- break;
- }
- per_cpu_ptr(conf->percpu, cpu)->spare_page = spare_page;
- }
- scribble = kmalloc(conf->scribble_len, GFP_KERNEL);
- if (!scribble) {
- err = -ENOMEM;
+ err = alloc_scratch_buffer(conf, per_cpu_ptr(conf->percpu, cpu));
+ if (err) {
+ pr_err("%s: failed memory allocation for cpu%ld\n",
+ __func__, cpu);
break;
}
- per_cpu_ptr(conf->percpu, cpu)->scribble = scribble;
}
-#ifdef CONFIG_HOTPLUG_CPU
- conf->cpu_notify.notifier_call = raid456_cpu_notify;
- conf->cpu_notify.priority = 0;
- if (err == 0)
- err = register_cpu_notifier(&conf->cpu_notify);
-#endif
put_online_cpus();

return err;
diff --git a/drivers/media/dvb/dvb-usb/mxl111sf-tuner.h b/drivers/media/dvb/dvb-usb/mxl111sf-tuner.h
index ff33396..10b93c4 100644
--- a/drivers/media/dvb/dvb-usb/mxl111sf-tuner.h
+++ b/drivers/media/dvb/dvb-usb/mxl111sf-tuner.h
@@ -69,7 +69,7 @@ struct dvb_frontend *mxl111sf_tuner_attach(struct dvb_frontend *fe,
#else
static inline
struct dvb_frontend *mxl111sf_tuner_attach(struct dvb_frontend *fe,
- struct mxl111sf_state *mxl_state
+ struct mxl111sf_state *mxl_state,
struct mxl111sf_tuner_config *cfg)
{
printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
diff --git a/drivers/media/dvb/frontends/dib8000.c b/drivers/media/dvb/frontends/dib8000.c
index fe284d5..a542db1 100644
--- a/drivers/media/dvb/frontends/dib8000.c
+++ b/drivers/media/dvb/frontends/dib8000.c
@@ -114,15 +114,10 @@ static u16 dib8000_i2c_read16(struct i2c_device *i2c, u16 reg)
return ret;
}

-static u16 dib8000_read_word(struct dib8000_state *state, u16 reg)
+static u16 __dib8000_read_word(struct dib8000_state *state, u16 reg)
{
u16 ret;

- if (mutex_lock_interruptible(&state->i2c_buffer_lock) < 0) {
- dprintk("could not acquire lock");
- return 0;
- }
-
state->i2c_write_buffer[0] = reg >> 8;
state->i2c_write_buffer[1] = reg & 0xff;

@@ -140,6 +135,21 @@ static u16 dib8000_read_word(struct dib8000_state *state, u16 reg)
dprintk("i2c read error on %d", reg);

ret = (state->i2c_read_buffer[0] << 8) | state->i2c_read_buffer[1];
+
+ return ret;
+}
+
+static u16 dib8000_read_word(struct dib8000_state *state, u16 reg)
+{
+ u16 ret;
+
+ if (mutex_lock_interruptible(&state->i2c_buffer_lock) < 0) {
+ dprintk("could not acquire lock");
+ return 0;
+ }
+
+ ret = __dib8000_read_word(state, reg);
+
mutex_unlock(&state->i2c_buffer_lock);

return ret;
@@ -149,8 +159,15 @@ static u32 dib8000_read32(struct dib8000_state *state, u16 reg)
{
u16 rw[2];

- rw[0] = dib8000_read_word(state, reg + 0);
- rw[1] = dib8000_read_word(state, reg + 1);
+ if (mutex_lock_interruptible(&state->i2c_buffer_lock) < 0) {
+ dprintk("could not acquire lock");
+ return 0;
+ }
+
+ rw[0] = __dib8000_read_word(state, reg + 0);
+ rw[1] = __dib8000_read_word(state, reg + 1);
+
+ mutex_unlock(&state->i2c_buffer_lock);

return ((rw[0] << 16) | (rw[1]));
}
diff --git a/drivers/media/video/saa7134/saa7134-alsa.c b/drivers/media/video/saa7134/saa7134-alsa.c
index 10460fd..dbcdfbf 100644
--- a/drivers/media/video/saa7134/saa7134-alsa.c
+++ b/drivers/media/video/saa7134/saa7134-alsa.c
@@ -172,7 +172,9 @@ static void saa7134_irq_alsa_done(struct saa7134_dev *dev,
dprintk("irq: overrun [full=%d/%d] - Blocks in %d\n",dev->dmasound.read_count,
dev->dmasound.bufsize, dev->dmasound.blocks);
spin_unlock(&dev->slock);
+ snd_pcm_stream_lock(dev->dmasound.substream);
snd_pcm_stop(dev->dmasound.substream,SNDRV_PCM_STATE_XRUN);
+ snd_pcm_stream_unlock(dev->dmasound.substream);
return;
}

diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c
index 83790f2..fd61f63 100644
--- a/drivers/mmc/host/atmel-mci.c
+++ b/drivers/mmc/host/atmel-mci.c
@@ -1014,11 +1014,22 @@ static void atmci_start_request(struct atmel_mci *host,
iflags |= ATMCI_CMDRDY;
cmd = mrq->cmd;
cmdflags = atmci_prepare_command(slot->mmc, cmd);
- atmci_send_command(host, cmd, cmdflags);
+
+ /*
+ * DMA transfer should be started before sending the command to avoid
+ * unexpected errors especially for read operations in SDIO mode.
+ * Unfortunately, in PDC mode, command has to be sent before starting
+ * the transfer.
+ */
+ if (host->submit_data != &atmci_submit_data_dma)
+ atmci_send_command(host, cmd, cmdflags);

if (data)
host->submit_data(host, data);

+ if (host->submit_data == &atmci_submit_data_dma)
+ atmci_send_command(host, cmd, cmdflags);
+
if (mrq->stop) {
host->stop_cmdr = atmci_prepare_command(slot->mmc, mrq->stop);
host->stop_cmdr |= ATMCI_CMDR_STOP_XFER;
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index aaeaff2..9f68b82 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -1670,12 +1670,12 @@ static int sdhci_execute_tuning(struct mmc_host *mmc)
int tuning_loop_counter = MAX_TUNING_LOOP;
unsigned long timeout;
int err = 0;
+ unsigned long flags;

host = mmc_priv(mmc);

sdhci_runtime_pm_get(host);
- disable_irq(host->irq);
- spin_lock(&host->lock);
+ spin_lock_irqsave(&host->lock, flags);

ctrl = sdhci_readw(host, SDHCI_HOST_CONTROL2);

@@ -1689,8 +1689,7 @@ static int sdhci_execute_tuning(struct mmc_host *mmc)
(host->flags & SDHCI_SDR50_NEEDS_TUNING)))
ctrl |= SDHCI_CTRL_EXEC_TUNING;
else {
- spin_unlock(&host->lock);
- enable_irq(host->irq);
+ spin_unlock_irqrestore(&host->lock, flags);
sdhci_runtime_pm_put(host);
return 0;
}
@@ -1752,15 +1751,12 @@ static int sdhci_execute_tuning(struct mmc_host *mmc)
host->cmd = NULL;
host->mrq = NULL;

- spin_unlock(&host->lock);
- enable_irq(host->irq);
-
+ spin_unlock_irqrestore(&host->lock, flags);
/* Wait for Buffer Read Ready interrupt */
wait_event_interruptible_timeout(host->buf_ready_int,
(host->tuning_done == 1),
msecs_to_jiffies(50));
- disable_irq(host->irq);
- spin_lock(&host->lock);
+ spin_lock_irqsave(&host->lock, flags);

if (!host->tuning_done) {
pr_info(DRIVER_NAME ": Timeout waiting for "
@@ -1833,8 +1829,7 @@ out:
err = 0;

sdhci_clear_set_irqs(host, SDHCI_INT_DATA_AVAIL, ier);
- spin_unlock(&host->lock);
- enable_irq(host->irq);
+ spin_unlock_irqrestore(&host->lock, flags);
sdhci_runtime_pm_put(host);

return err;
diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c
index 74a43b8..baf8356 100644
--- a/drivers/mtd/nand/mxc_nand.c
+++ b/drivers/mtd/nand/mxc_nand.c
@@ -596,7 +596,6 @@ static int mxc_nand_correct_data_v2_v3(struct mtd_info *mtd, u_char *dat,
ecc_stat >>= 4;
} while (--no_subpages);

- mtd->ecc_stats.corrected += ret;
pr_debug("%d Symbol Correctable RS-ECC Error\n", ret);

return ret;
diff --git a/drivers/net/bonding/bond_3ad.c b/drivers/net/bonding/bond_3ad.c
index 0ae0d7c..aaa7999 100644
--- a/drivers/net/bonding/bond_3ad.c
+++ b/drivers/net/bonding/bond_3ad.c
@@ -1854,8 +1854,6 @@ void bond_3ad_initiate_agg_selection(struct bonding *bond, int timeout)
BOND_AD_INFO(bond).agg_select_timer = timeout;
}

-static u16 aggregator_identifier;
-
/**
* bond_3ad_initialize - initialize a bond's 802.3ad parameters and structures
* @bond: bonding struct to work on
@@ -1869,7 +1867,7 @@ void bond_3ad_initialize(struct bonding *bond, u16 tick_resolution)
if (MAC_ADDRESS_COMPARE(&(BOND_AD_INFO(bond).system.sys_mac_addr),
bond->dev->dev_addr)) {

- aggregator_identifier = 0;
+ BOND_AD_INFO(bond).aggregator_identifier = 0;

BOND_AD_INFO(bond).system.sys_priority = 0xFFFF;
BOND_AD_INFO(bond).system.sys_mac_addr = *((struct mac_addr *)bond->dev->dev_addr);
@@ -1941,7 +1939,7 @@ int bond_3ad_bind_slave(struct slave *slave)
ad_initialize_agg(aggregator);

aggregator->aggregator_mac_address = *((struct mac_addr *)bond->dev->dev_addr);
- aggregator->aggregator_identifier = (++aggregator_identifier);
+ aggregator->aggregator_identifier = ++BOND_AD_INFO(bond).aggregator_identifier;
aggregator->slave = slave;
aggregator->is_active = 0;
aggregator->num_of_ports = 0;
diff --git a/drivers/net/bonding/bond_3ad.h b/drivers/net/bonding/bond_3ad.h
index 235b2cc..20d9c78 100644
--- a/drivers/net/bonding/bond_3ad.h
+++ b/drivers/net/bonding/bond_3ad.h
@@ -253,6 +253,7 @@ struct ad_system {
struct ad_bond_info {
struct ad_system system; /* 802.3ad system structure */
u32 agg_select_timer; // Timer to select aggregator after all adapter's hand shakes
+ u16 aggregator_identifier;
};

struct ad_slave_info {
diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c
index bb828c2..7c6bb5a 100644
--- a/drivers/net/can/flexcan.c
+++ b/drivers/net/can/flexcan.c
@@ -777,14 +777,16 @@ static void flexcan_chip_stop(struct net_device *dev)
struct flexcan_regs __iomem *regs = priv->base;
u32 reg;

- /* Disable all interrupts */
- flexcan_write(0, &regs->imask1);
-
/* Disable + halt module */
reg = flexcan_read(&regs->mcr);
reg |= FLEXCAN_MCR_MDIS | FLEXCAN_MCR_HALT;
flexcan_write(reg, &regs->mcr);

+ /* Disable all interrupts */
+ flexcan_write(0, &regs->imask1);
+ flexcan_write(priv->reg_ctrl_default & ~FLEXCAN_CTRL_ERR_ALL,
+ &regs->ctrl);
+
flexcan_transceiver_switch(priv, 0);
priv->can.state = CAN_STATE_STOPPED;

@@ -809,12 +811,14 @@ static int flexcan_open(struct net_device *dev)
/* start chip and queuing */
err = flexcan_chip_start(dev);
if (err)
- goto out_close;
+ goto out_free_irq;
napi_enable(&priv->napi);
netif_start_queue(dev);

return 0;

+ out_free_irq:
+ free_irq(dev->irq, dev);
out_close:
close_candev(dev);
out:
@@ -1023,6 +1027,7 @@ static int __devexit flexcan_remove(struct platform_device *pdev)
struct resource *mem;

unregister_flexcandev(dev);
+ netif_napi_del(&priv->napi);
platform_set_drvdata(pdev, NULL);
iounmap(priv->base);

diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index d5793d3..c77c462 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -5637,8 +5637,7 @@ static int tg3_rx(struct tg3_napi *tnapi, int budget)

work_mask |= opaque_key;

- if ((desc->err_vlan & RXD_ERR_MASK) != 0 &&
- (desc->err_vlan != RXD_ERR_ODD_NIBBLE_RCVD_MII)) {
+ if (desc->err_vlan & RXD_ERR_MASK) {
drop_it:
tg3_recycle_rx(tnapi, tpr, opaque_key,
desc_idx, *post_ptr);
@@ -7103,12 +7102,12 @@ static int tg3_change_mtu(struct net_device *dev, int new_mtu)

tg3_netif_stop(tp);

+ tg3_set_mtu(dev, tp, new_mtu);
+
tg3_full_lock(tp, 1);

tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);

- tg3_set_mtu(dev, tp, new_mtu);
-
err = tg3_restart_hw(tp, 0);

if (!err)
diff --git a/drivers/net/ethernet/broadcom/tg3.h b/drivers/net/ethernet/broadcom/tg3.h
index da90ba5..a398a6f 100644
--- a/drivers/net/ethernet/broadcom/tg3.h
+++ b/drivers/net/ethernet/broadcom/tg3.h
@@ -2477,7 +2477,11 @@ struct tg3_rx_buffer_desc {
#define RXD_ERR_TOO_SMALL 0x00400000
#define RXD_ERR_NO_RESOURCES 0x00800000
#define RXD_ERR_HUGE_FRAME 0x01000000
-#define RXD_ERR_MASK 0xffff0000
+
+#define RXD_ERR_MASK (RXD_ERR_BAD_CRC | RXD_ERR_COLLISION | \
+ RXD_ERR_LINK_LOST | RXD_ERR_PHY_DECODE | \
+ RXD_ERR_MAC_ABRT | RXD_ERR_TOO_SMALL | \
+ RXD_ERR_NO_RESOURCES | RXD_ERR_HUGE_FRAME)

u32 reserved;
u32 opaque;
diff --git a/drivers/net/usb/gl620a.c b/drivers/net/usb/gl620a.c
index c4cfd1d..75d9040 100644
--- a/drivers/net/usb/gl620a.c
+++ b/drivers/net/usb/gl620a.c
@@ -86,6 +86,10 @@ static int genelink_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
u32 size;
u32 count;

+ /* This check is no longer done by usbnet */
+ if (skb->len < dev->net->hard_header_len)
+ return 0;
+
header = (struct gl_header *) skb->data;

// get the packet count of the received skb
diff --git a/drivers/net/usb/mcs7830.c b/drivers/net/usb/mcs7830.c
index db2cb74..a2f7579 100644
--- a/drivers/net/usb/mcs7830.c
+++ b/drivers/net/usb/mcs7830.c
@@ -601,8 +601,9 @@ static int mcs7830_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
{
u8 status;

- if (skb->len == 0) {
- dev_err(&dev->udev->dev, "unexpected empty rx frame\n");
+ /* This check is no longer done by usbnet */
+ if (skb->len < dev->net->hard_header_len) {
+ dev_err(&dev->udev->dev, "unexpected tiny rx frame\n");
return 0;
}

diff --git a/drivers/net/usb/net1080.c b/drivers/net/usb/net1080.c
index 01db460..c9e3278 100644
--- a/drivers/net/usb/net1080.c
+++ b/drivers/net/usb/net1080.c
@@ -419,6 +419,10 @@ static int net1080_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
struct nc_trailer *trailer;
u16 hdr_len, packet_len;

+ /* This check is no longer done by usbnet */
+ if (skb->len < dev->net->hard_header_len)
+ return 0;
+
if (!(skb->len & 0x01)) {
#ifdef DEBUG
struct net_device *net = dev->net;
diff --git a/drivers/net/usb/rndis_host.c b/drivers/net/usb/rndis_host.c
index 255d6a4..13b40e3 100644
--- a/drivers/net/usb/rndis_host.c
+++ b/drivers/net/usb/rndis_host.c
@@ -490,6 +490,10 @@ EXPORT_SYMBOL_GPL(rndis_unbind);
*/
int rndis_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
{
+ /* This check is no longer done by usbnet */
+ if (skb->len < dev->net->hard_header_len)
+ return 0;
+
/* peripheral may have batched packets to us... */
while (likely(skb->len)) {
struct rndis_data_hdr *hdr = (void *)skb->data;
diff --git a/drivers/net/usb/smsc75xx.c b/drivers/net/usb/smsc75xx.c
index a8e4640..c41b42b 100644
--- a/drivers/net/usb/smsc75xx.c
+++ b/drivers/net/usb/smsc75xx.c
@@ -1079,6 +1079,10 @@ static void smsc75xx_rx_csum_offload(struct usbnet *dev, struct sk_buff *skb,

static int smsc75xx_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
{
+ /* This check is no longer done by usbnet */
+ if (skb->len < dev->net->hard_header_len)
+ return 0;
+
while (skb->len > 0) {
u32 rx_cmd_a, rx_cmd_b, align_count, size;
struct sk_buff *ax_skb;
diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c
index 55b3218..6617325 100644
--- a/drivers/net/usb/smsc95xx.c
+++ b/drivers/net/usb/smsc95xx.c
@@ -1039,6 +1039,10 @@ static void smsc95xx_rx_csum_offload(struct sk_buff *skb)

static int smsc95xx_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
{
+ /* This check is no longer done by usbnet */
+ if (skb->len < dev->net->hard_header_len)
+ return 0;
+
while (skb->len > 0) {
u32 header, align_count;
struct sk_buff *ax_skb;
diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
index dc53a8f..3d21742 100644
--- a/drivers/net/usb/usbnet.c
+++ b/drivers/net/usb/usbnet.c
@@ -414,17 +414,19 @@ static inline void rx_process (struct usbnet *dev, struct sk_buff *skb)
}
// else network stack removes extra byte if we forced a short packet

- if (skb->len) {
- /* all data was already cloned from skb inside the driver */
- if (dev->driver_info->flags & FLAG_MULTI_PACKET)
- dev_kfree_skb_any(skb);
- else
- usbnet_skb_return(dev, skb);
+ /* all data was already cloned from skb inside the driver */
+ if (dev->driver_info->flags & FLAG_MULTI_PACKET)
+ goto done;
+
+ if (skb->len < ETH_HLEN) {
+ dev->net->stats.rx_errors++;
+ dev->net->stats.rx_length_errors++;
+ netif_dbg(dev, rx_err, dev->net, "rx length %d\n", skb->len);
+ } else {
+ usbnet_skb_return(dev, skb);
return;
}

- netif_dbg(dev, rx_err, dev->net, "drop\n");
- dev->net->stats.rx_errors++;
done:
skb_queue_tail(&dev->done, skb);
}
@@ -446,13 +448,6 @@ static void rx_complete (struct urb *urb)
switch (urb_status) {
/* success */
case 0:
- if (skb->len < dev->net->hard_header_len) {
- state = rx_cleanup;
- dev->net->stats.rx_errors++;
- dev->net->stats.rx_length_errors++;
- netif_dbg(dev, rx_err, dev->net,
- "rx length %d\n", skb->len);
- }
break;

/* stalls need manual reset. this is rare ... except that
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 43a6a11..f13a673 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -1029,7 +1029,8 @@ static int virtnet_probe(struct virtio_device *vdev)
/* If we can receive ANY GSO packets, we must allocate large ones. */
if (virtio_has_feature(vdev, VIRTIO_NET_F_GUEST_TSO4) ||
virtio_has_feature(vdev, VIRTIO_NET_F_GUEST_TSO6) ||
- virtio_has_feature(vdev, VIRTIO_NET_F_GUEST_ECN))
+ virtio_has_feature(vdev, VIRTIO_NET_F_GUEST_ECN) ||
+ virtio_has_feature(vdev, VIRTIO_NET_F_GUEST_UFO))
vi->big_packets = true;

if (virtio_has_feature(vdev, VIRTIO_NET_F_MRG_RXBUF))
diff --git a/drivers/net/vmxnet3/vmxnet3_drv.c b/drivers/net/vmxnet3/vmxnet3_drv.c
index d426261..28ceef2 100644
--- a/drivers/net/vmxnet3/vmxnet3_drv.c
+++ b/drivers/net/vmxnet3/vmxnet3_drv.c
@@ -1734,11 +1734,20 @@ vmxnet3_netpoll(struct net_device *netdev)
{
struct vmxnet3_adapter *adapter = netdev_priv(netdev);

- if (adapter->intr.mask_mode == VMXNET3_IMM_ACTIVE)
- vmxnet3_disable_all_intrs(adapter);
-
- vmxnet3_do_poll(adapter, adapter->rx_queue[0].rx_ring[0].size);
- vmxnet3_enable_all_intrs(adapter);
+ switch (adapter->intr.type) {
+#ifdef CONFIG_PCI_MSI
+ case VMXNET3_IT_MSIX: {
+ int i;
+ for (i = 0; i < adapter->num_rx_queues; i++)
+ vmxnet3_msix_rx(0, &adapter->rx_queue[i]);
+ break;
+ }
+#endif
+ case VMXNET3_IT_MSI:
+ default:
+ vmxnet3_intr(0, adapter->netdev);
+ break;
+ }

}
#endif /* CONFIG_NET_POLL_CONTROLLER */
diff --git a/drivers/net/wireless/ath/ath9k/ar9462_2p0_initvals.h b/drivers/net/wireless/ath/ath9k/ar9462_2p0_initvals.h
index 9c51b39..eabf374 100644
--- a/drivers/net/wireless/ath/ath9k/ar9462_2p0_initvals.h
+++ b/drivers/net/wireless/ath/ath9k/ar9462_2p0_initvals.h
@@ -55,7 +55,7 @@ static const u32 ar9462_2p0_baseband_postamble[][5] = {
{0x00009e14, 0x37b95d5e, 0x37b9605e, 0x3039605e, 0x33795d5e},
{0x00009e18, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
{0x00009e1c, 0x0001cf9c, 0x0001cf9c, 0x00021f9c, 0x00021f9c},
- {0x00009e20, 0x000003b5, 0x000003b5, 0x000003ce, 0x000003ce},
+ {0x00009e20, 0x000003a5, 0x000003a5, 0x000003a5, 0x000003a5},
{0x00009e2c, 0x0000001c, 0x0000001c, 0x00000021, 0x00000021},
{0x00009e3c, 0xcf946220, 0xcf946220, 0xcfd5c782, 0xcfd5c782},
{0x00009e44, 0xfe321e27, 0xfe321e27, 0xfe291e27, 0xfe291e27},
@@ -85,7 +85,7 @@ static const u32 ar9462_2p0_baseband_postamble[][5] = {
{0x0000ae04, 0x001c0000, 0x001c0000, 0x001c0000, 0x00100000},
{0x0000ae18, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
{0x0000ae1c, 0x0000019c, 0x0000019c, 0x0000019c, 0x0000019c},
- {0x0000ae20, 0x000001b5, 0x000001b5, 0x000001ce, 0x000001ce},
+ {0x0000ae20, 0x000001a6, 0x000001a6, 0x000001aa, 0x000001aa},
{0x0000b284, 0x00000000, 0x00000000, 0x00000550, 0x00000550},
};

diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_init.c b/drivers/net/wireless/ath/ath9k/htc_drv_init.c
index ef921e1..c6c3e1c 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_init.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_init.c
@@ -28,6 +28,10 @@ int htc_modparam_nohwcrypt;
module_param_named(nohwcrypt, htc_modparam_nohwcrypt, int, 0444);
MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption");

+static int ath9k_ps_enable;
+module_param_named(ps_enable, ath9k_ps_enable, int, 0444);
+MODULE_PARM_DESC(ps_enable, "Enable WLAN PowerSave");
+
#define CHAN2G(_freq, _idx) { \
.center_freq = (_freq), \
.hw_value = (_idx), \
@@ -729,11 +733,13 @@ static void ath9k_set_hw_capab(struct ath9k_htc_priv *priv,
IEEE80211_HW_SPECTRUM_MGMT |
IEEE80211_HW_HAS_RATE_CONTROL |
IEEE80211_HW_RX_INCLUDES_FCS |
- IEEE80211_HW_SUPPORTS_PS |
IEEE80211_HW_PS_NULLFUNC_STACK |
IEEE80211_HW_REPORTS_TX_ACK_STATUS |
IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING;

+ if (ath9k_ps_enable)
+ hw->flags |= IEEE80211_HW_SUPPORTS_PS;
+
hw->wiphy->interface_modes =
BIT(NL80211_IFTYPE_STATION) |
BIT(NL80211_IFTYPE_ADHOC) |
diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c
index ba6a49c..1355d71 100644
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -44,6 +44,10 @@ static int ath9k_btcoex_enable;
module_param_named(btcoex_enable, ath9k_btcoex_enable, int, 0444);
MODULE_PARM_DESC(btcoex_enable, "Enable wifi-BT coexistence");

+static int ath9k_ps_enable;
+module_param_named(ps_enable, ath9k_ps_enable, int, 0444);
+MODULE_PARM_DESC(ps_enable, "Enable WLAN PowerSave");
+
bool is_ath9k_unloaded;
/* We use the hw_value as an index into our private channel structure */

@@ -671,11 +675,13 @@ void ath9k_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw)
hw->flags = IEEE80211_HW_RX_INCLUDES_FCS |
IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
IEEE80211_HW_SIGNAL_DBM |
- IEEE80211_HW_SUPPORTS_PS |
IEEE80211_HW_PS_NULLFUNC_STACK |
IEEE80211_HW_SPECTRUM_MGMT |
IEEE80211_HW_REPORTS_TX_ACK_STATUS;

+ if (ath9k_ps_enable)
+ hw->flags |= IEEE80211_HW_SUPPORTS_PS;
+
if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_HT)
hw->flags |= IEEE80211_HW_AMPDU_AGGREGATION;

diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c
index 126ed31..2e88af1 100644
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -1176,14 +1176,16 @@ void ath_tx_aggr_sleep(struct ieee80211_sta *sta, struct ath_softc *sc,
for (tidno = 0, tid = &an->tid[tidno];
tidno < WME_NUM_TID; tidno++, tid++) {

- if (!tid->sched)
- continue;
-
ac = tid->ac;
txq = ac->txq;

spin_lock_bh(&txq->axq_lock);

+ if (!tid->sched) {
+ spin_unlock_bh(&txq->axq_lock);
+ continue;
+ }
+
buffered = !skb_queue_empty(&tid->buf_q);

tid->sched = false;
diff --git a/drivers/net/wireless/b43/xmit.c b/drivers/net/wireless/b43/xmit.c
index 5f77cbe..c6c34bf 100644
--- a/drivers/net/wireless/b43/xmit.c
+++ b/drivers/net/wireless/b43/xmit.c
@@ -819,10 +819,10 @@ void b43_rx(struct b43_wldev *dev, struct sk_buff *skb, const void *_rxhdr)
* channel number in b43. */
if (chanstat & B43_RX_CHAN_5GHZ) {
status.band = IEEE80211_BAND_5GHZ;
- status.freq = b43_freq_to_channel_5ghz(chanid);
+ status.freq = b43_channel_to_freq_5ghz(chanid);
} else {
status.band = IEEE80211_BAND_2GHZ;
- status.freq = b43_freq_to_channel_2ghz(chanid);
+ status.freq = b43_channel_to_freq_2ghz(chanid);
}
break;
default:
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c
index df1540c..5fe4602 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c
@@ -854,8 +854,6 @@ int iwlagn_rx_reply_compressed_ba(struct iwl_priv *priv,
struct iwl_compressed_ba_resp *ba_resp = &pkt->u.compressed_ba;
struct iwl_ht_agg *agg;
struct sk_buff_head reclaimed_skbs;
- struct ieee80211_tx_info *info;
- struct ieee80211_hdr *hdr;
struct sk_buff *skb;
unsigned long flags;
int sta_id;
@@ -941,24 +939,32 @@ int iwlagn_rx_reply_compressed_ba(struct iwl_priv *priv,
0, &reclaimed_skbs);
freed = 0;
while (!skb_queue_empty(&reclaimed_skbs)) {
+ struct ieee80211_hdr *hdr;
+ struct ieee80211_tx_info *info;

skb = __skb_dequeue(&reclaimed_skbs);
- hdr = (struct ieee80211_hdr *)skb->data;
+ hdr = (void *)skb->data;
+ info = IEEE80211_SKB_CB(skb);

if (ieee80211_is_data_qos(hdr->frame_control))
freed++;
else
WARN_ON_ONCE(1);

- info = IEEE80211_SKB_CB(skb);
kmem_cache_free(priv->tx_cmd_pool, (info->driver_data[1]));

+ memset(&info->status, 0, sizeof(info->status));
+ /* Packet was transmitted successfully, failures come as single
+ * frames because before failing a frame the firmware transmits
+ * it without aggregation at least once.
+ */
+ info->flags |= IEEE80211_TX_STAT_ACK;
+
if (freed == 1) {
/* this is the first skb we deliver in this batch */
/* put the rate scaling data there */
info = IEEE80211_SKB_CB(skb);
memset(&info->status, 0, sizeof(info->status));
- info->flags |= IEEE80211_TX_STAT_ACK;
info->flags |= IEEE80211_TX_STAT_AMPDU;
info->status.ampdu_ack_len = ba_resp->txed_2_done;
info->status.ampdu_len = ba_resp->txed;
diff --git a/drivers/net/wireless/mwifiex/11n.c b/drivers/net/wireless/mwifiex/11n.c
index 34bba52..6543f4f 100644
--- a/drivers/net/wireless/mwifiex/11n.c
+++ b/drivers/net/wireless/mwifiex/11n.c
@@ -343,8 +343,7 @@ mwifiex_cmd_append_11n_tlv(struct mwifiex_private *priv,
ht_cap->header.len =
cpu_to_le16(sizeof(struct ieee80211_ht_cap));
memcpy((u8 *) ht_cap + sizeof(struct mwifiex_ie_types_header),
- (u8 *) bss_desc->bcn_ht_cap +
- sizeof(struct ieee_types_header),
+ (u8 *)bss_desc->bcn_ht_cap,
le16_to_cpu(ht_cap->header.len));

mwifiex_fill_cap_info(priv, radio_type, ht_cap);
diff --git a/drivers/net/wireless/rtl818x/rtl8187/rtl8187.h b/drivers/net/wireless/rtl818x/rtl8187/rtl8187.h
index f1cc907..6d3d653 100644
--- a/drivers/net/wireless/rtl818x/rtl8187/rtl8187.h
+++ b/drivers/net/wireless/rtl818x/rtl8187/rtl8187.h
@@ -15,6 +15,8 @@
#ifndef RTL8187_H
#define RTL8187_H

+#include <linux/cache.h>
+
#include "rtl818x.h"
#include "leds.h"

@@ -131,7 +133,10 @@ struct rtl8187_priv {
u8 aifsn[4];
u8 rfkill_mask;
struct {
- __le64 buf;
+ union {
+ __le64 buf;
+ u8 dummy1[L1_CACHE_BYTES];
+ } ____cacheline_aligned;
struct sk_buff_head queue;
} b_tx_status; /* This queue is used by both -b and non-b devices */
struct mutex io_mutex;
@@ -139,7 +144,8 @@ struct rtl8187_priv {
u8 bits8;
__le16 bits16;
__le32 bits32;
- } *io_dmabuf;
+ u8 dummy2[L1_CACHE_BYTES];
+ } *io_dmabuf ____cacheline_aligned;
bool rfkill_off;
};

diff --git a/drivers/net/wireless/rtlwifi/core.c b/drivers/net/wireless/rtlwifi/core.c
index 3f0f056..4fa987b 100644
--- a/drivers/net/wireless/rtlwifi/core.c
+++ b/drivers/net/wireless/rtlwifi/core.c
@@ -131,6 +131,7 @@ static int rtl_op_add_interface(struct ieee80211_hw *hw,
rtlpriv->cfg->maps
[RTL_IBSS_INT_MASKS]);
}
+ mac->link_state = MAC80211_LINKED;
break;
case NL80211_IFTYPE_ADHOC:
RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD,
diff --git a/drivers/net/wireless/rtlwifi/rtl8192ce/hw.c b/drivers/net/wireless/rtlwifi/rtl8192ce/hw.c
index cb480d8..ce1fdbe 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192ce/hw.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192ce/hw.c
@@ -905,14 +905,26 @@ int rtl92ce_hw_init(struct ieee80211_hw *hw)
bool is92c;
int err;
u8 tmp_u1b;
+ unsigned long flags;

rtlpci->being_init_adapter = true;
+
+ /* Since this function can take a very long time (up to 350 ms)
+ * and can be called with irqs disabled, reenable the irqs
+ * to let the other devices continue being serviced.
+ *
+ * It is safe doing so since our own interrupts will only be enabled
+ * in a subsequent step.
+ */
+ local_save_flags(flags);
+ local_irq_enable();
+
rtlpriv->intf_ops->disable_aspm(hw);
rtstatus = _rtl92ce_init_mac(hw);
if (rtstatus != true) {
RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, ("Init MAC failed\n"));
err = 1;
- return err;
+ goto exit;
}

err = rtl92c_download_fw(hw);
@@ -922,7 +934,7 @@ int rtl92ce_hw_init(struct ieee80211_hw *hw)
"without FW now..\n"));
err = 1;
rtlhal->fw_ready = false;
- return err;
+ goto exit;
} else {
rtlhal->fw_ready = true;
}
@@ -985,6 +997,8 @@ int rtl92ce_hw_init(struct ieee80211_hw *hw)
RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE, ("under 1.5V\n"));
}
rtl92c_dm_init(hw);
+exit:
+ local_irq_restore(flags);
rtlpci->being_init_adapter = false;
return err;
}
diff --git a/drivers/net/wireless/rtlwifi/rtl8192cu/rf.c b/drivers/net/wireless/rtlwifi/rtl8192cu/rf.c
index 17a8e96..d984867 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192cu/rf.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192cu/rf.c
@@ -85,17 +85,15 @@ void rtl92cu_phy_rf6052_set_cck_txpower(struct ieee80211_hw *hw,
if (mac->act_scanning) {
tx_agc[RF90_PATH_A] = 0x3f3f3f3f;
tx_agc[RF90_PATH_B] = 0x3f3f3f3f;
- if (turbo_scanoff) {
- for (idx1 = RF90_PATH_A; idx1 <= RF90_PATH_B; idx1++) {
- tx_agc[idx1] = ppowerlevel[idx1] |
- (ppowerlevel[idx1] << 8) |
- (ppowerlevel[idx1] << 16) |
- (ppowerlevel[idx1] << 24);
- if (rtlhal->interface == INTF_USB) {
- if (tx_agc[idx1] > 0x20 &&
- rtlefuse->external_pa)
- tx_agc[idx1] = 0x20;
- }
+ for (idx1 = RF90_PATH_A; idx1 <= RF90_PATH_B; idx1++) {
+ tx_agc[idx1] = ppowerlevel[idx1] |
+ (ppowerlevel[idx1] << 8) |
+ (ppowerlevel[idx1] << 16) |
+ (ppowerlevel[idx1] << 24);
+ if (rtlhal->interface == INTF_USB) {
+ if (tx_agc[idx1] > 0x20 &&
+ rtlefuse->external_pa)
+ tx_agc[idx1] = 0x20;
}
}
} else {
@@ -107,7 +105,7 @@ void rtl92cu_phy_rf6052_set_cck_txpower(struct ieee80211_hw *hw,
TXHIGHPWRLEVEL_LEVEL2) {
tx_agc[RF90_PATH_A] = 0x00000000;
tx_agc[RF90_PATH_B] = 0x00000000;
- } else{
+ } else {
for (idx1 = RF90_PATH_A; idx1 <= RF90_PATH_B; idx1++) {
tx_agc[idx1] = ppowerlevel[idx1] |
(ppowerlevel[idx1] << 8) |
@@ -380,7 +378,12 @@ static void _rtl92c_write_ofdm_power_reg(struct ieee80211_hw *hw,
regoffset == RTXAGC_B_MCS07_MCS04)
regoffset = 0xc98;
for (i = 0; i < 3; i++) {
- writeVal = (writeVal > 6) ? (writeVal - 6) : 0;
+ if (i != 2)
+ writeVal = (writeVal > 8) ?
+ (writeVal - 8) : 0;
+ else
+ writeVal = (writeVal > 6) ?
+ (writeVal - 6) : 0;
rtl_write_byte(rtlpriv, (u32)(regoffset + i),
(u8)writeVal);
}
diff --git a/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c b/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c
index 016ef86..c184253 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c
@@ -316,6 +316,7 @@ static struct usb_device_id rtl8192c_usb_ids[] = {
{RTL_USB_DEVICE(0x0bda, 0x5088, rtl92cu_hal_cfg)}, /*Thinkware-CC&C*/
{RTL_USB_DEVICE(0x0df6, 0x0052, rtl92cu_hal_cfg)}, /*Sitecom - Edimax*/
{RTL_USB_DEVICE(0x0df6, 0x005c, rtl92cu_hal_cfg)}, /*Sitecom - Edimax*/
+ {RTL_USB_DEVICE(0x0df6, 0x0077, rtl92cu_hal_cfg)}, /*Sitecom-WLA2100V2*/
{RTL_USB_DEVICE(0x0eb0, 0x9071, rtl92cu_hal_cfg)}, /*NO Brand - Etop*/
{RTL_USB_DEVICE(0x4856, 0x0091, rtl92cu_hal_cfg)}, /*NetweeN - Feixun*/
/* HP - Lite-On ,8188CUS Slim Combo */
diff --git a/drivers/of/address.c b/drivers/of/address.c
index 72c33fb..45c1727 100644
--- a/drivers/of/address.c
+++ b/drivers/of/address.c
@@ -97,8 +97,13 @@ static unsigned int of_bus_default_get_flags(const __be32 *addr)

static int of_bus_pci_match(struct device_node *np)
{
- /* "vci" is for the /chaos bridge on 1st-gen PCI powermacs */
- return !strcmp(np->type, "pci") || !strcmp(np->type, "vci");
+ /*
+ * "pciex" is PCI Express
+ * "vci" is for the /chaos bridge on 1st-gen PCI powermacs
+ * "ht" is hypertransport
+ */
+ return !strcmp(np->type, "pci") || !strcmp(np->type, "pciex") ||
+ !strcmp(np->type, "vci") || !strcmp(np->type, "ht");
}

static void of_bus_pci_count_cells(struct device_node *np,
diff --git a/drivers/parport/parport_pc.c b/drivers/parport/parport_pc.c
index d0b597b..5a4432d 100644
--- a/drivers/parport/parport_pc.c
+++ b/drivers/parport/parport_pc.c
@@ -2875,8 +2875,6 @@ enum parport_pc_pci_cards {
syba_2p_epp,
syba_1p_ecp,
titan_010l,
- titan_1284p1,
- titan_1284p2,
avlab_1p,
avlab_2p,
oxsemi_952,
@@ -2935,8 +2933,6 @@ static struct parport_pc_pci {
/* syba_2p_epp AP138B */ { 2, { { 0, 0x078 }, { 0, 0x178 }, } },
/* syba_1p_ecp W83787 */ { 1, { { 0, 0x078 }, } },
/* titan_010l */ { 1, { { 3, -1 }, } },
- /* titan_1284p1 */ { 1, { { 0, 1 }, } },
- /* titan_1284p2 */ { 2, { { 0, 1 }, { 2, 3 }, } },
/* avlab_1p */ { 1, { { 0, 1}, } },
/* avlab_2p */ { 2, { { 0, 1}, { 2, 3 },} },
/* The Oxford Semi cards are unusual: 954 doesn't support ECP,
@@ -2952,8 +2948,8 @@ static struct parport_pc_pci {
/* netmos_9705 */ { 1, { { 0, -1 }, } },
/* netmos_9715 */ { 2, { { 0, 1 }, { 2, 3 },} },
/* netmos_9755 */ { 2, { { 0, 1 }, { 2, 3 },} },
- /* netmos_9805 */ { 1, { { 0, -1 }, } },
- /* netmos_9815 */ { 2, { { 0, -1 }, { 2, -1 }, } },
+ /* netmos_9805 */ { 1, { { 0, 1 }, } },
+ /* netmos_9815 */ { 2, { { 0, 1 }, { 2, 3 }, } },
/* netmos_9901 */ { 1, { { 0, -1 }, } },
/* netmos_9865 */ { 1, { { 0, -1 }, } },
/* quatech_sppxp100 */ { 1, { { 0, 1 }, } },
@@ -2997,8 +2993,6 @@ static const struct pci_device_id parport_pc_pci_tbl[] = {
PCI_ANY_ID, PCI_ANY_ID, 0, 0, syba_1p_ecp },
{ PCI_VENDOR_ID_TITAN, PCI_DEVICE_ID_TITAN_010L,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, titan_010l },
- { 0x9710, 0x9805, 0x1000, 0x0010, 0, 0, titan_1284p1 },
- { 0x9710, 0x9815, 0x1000, 0x0020, 0, 0, titan_1284p2 },
/* PCI_VENDOR_ID_AVLAB/Intek21 has another bunch of cards ...*/
/* AFAVLAB_TK9902 */
{ 0x14db, 0x2120, PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1p},
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 9f1fec1..fd4b825 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -1078,6 +1078,8 @@ EXPORT_SYMBOL_GPL(pci_load_and_free_saved_state);
static int do_pci_enable_device(struct pci_dev *dev, int bars)
{
int err;
+ u16 cmd;
+ u8 pin;

err = pci_set_power_state(dev, PCI_D0);
if (err < 0 && err != -EIO)
@@ -1087,6 +1089,14 @@ static int do_pci_enable_device(struct pci_dev *dev, int bars)
return err;
pci_fixup_device(pci_fixup_enable, dev);

+ pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin);
+ if (pin) {
+ pci_read_config_word(dev, PCI_COMMAND, &cmd);
+ if (cmd & PCI_COMMAND_INTX_DISABLE)
+ pci_write_config_word(dev, PCI_COMMAND,
+ cmd & ~PCI_COMMAND_INTX_DISABLE);
+ }
+
return 0;
}

diff --git a/drivers/platform/x86/hp_accel.c b/drivers/platform/x86/hp_accel.c
index fdacfce..0076fea 100644
--- a/drivers/platform/x86/hp_accel.c
+++ b/drivers/platform/x86/hp_accel.c
@@ -77,6 +77,7 @@ static inline void delayed_sysfs_set(struct led_classdev *led_cdev,
static struct acpi_device_id lis3lv02d_device_ids[] = {
{"HPQ0004", 0}, /* HP Mobile Data Protection System PNP */
{"HPQ6000", 0}, /* HP Mobile Data Protection System PNP */
+ {"HPQ6007", 0}, /* HP Mobile Data Protection System PNP */
{"", 0},
};
MODULE_DEVICE_TABLE(acpi, lis3lv02d_device_ids);
diff --git a/drivers/power/max17040_battery.c b/drivers/power/max17040_battery.c
index 2f2f9a6..39d3697 100644
--- a/drivers/power/max17040_battery.c
+++ b/drivers/power/max17040_battery.c
@@ -148,7 +148,7 @@ static void max17040_get_online(struct i2c_client *client)
{
struct max17040_chip *chip = i2c_get_clientdata(client);

- if (chip->pdata->battery_online)
+ if (chip->pdata && chip->pdata->battery_online)
chip->online = chip->pdata->battery_online();
else
chip->online = 1;
@@ -158,7 +158,8 @@ static void max17040_get_status(struct i2c_client *client)
{
struct max17040_chip *chip = i2c_get_clientdata(client);

- if (!chip->pdata->charger_online || !chip->pdata->charger_enable) {
+ if (!chip->pdata || !chip->pdata->charger_online
+ || !chip->pdata->charger_enable) {
chip->status = POWER_SUPPLY_STATUS_UNKNOWN;
return;
}
diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c
index e3eed18..cae8985 100644
--- a/drivers/rtc/rtc-cmos.c
+++ b/drivers/rtc/rtc-cmos.c
@@ -34,11 +34,11 @@
#include <linux/interrupt.h>
#include <linux/spinlock.h>
#include <linux/platform_device.h>
-#include <linux/mod_devicetable.h>
#include <linux/log2.h>
#include <linux/pm.h>
#include <linux/of.h>
#include <linux/of_platform.h>
+#include <linux/dmi.h>

/* this is for "generic access to PC-style RTC" using CMOS_READ/CMOS_WRITE */
#include <asm-generic/rtc.h>
@@ -377,6 +377,51 @@ static int cmos_set_alarm(struct device *dev, struct rtc_wkalrm *t)
return 0;
}

+/*
+ * Do not disable RTC alarm on shutdown - workaround for b0rked BIOSes.
+ */
+static bool alarm_disable_quirk;
+
+static int __init set_alarm_disable_quirk(const struct dmi_system_id *id)
+{
+ alarm_disable_quirk = true;
+ pr_info("rtc-cmos: BIOS has alarm-disable quirk. ");
+ pr_info("RTC alarms disabled\n");
+ return 0;
+}
+
+static const struct dmi_system_id rtc_quirks[] __initconst = {
+ /* https://bugzilla.novell.com/show_bug.cgi?id=805740 */
+ {
+ .callback = set_alarm_disable_quirk,
+ .ident = "IBM Truman",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "4852570"),
+ },
+ },
+ /* https://bugzilla.novell.com/show_bug.cgi?id=812592 */
+ {
+ .callback = set_alarm_disable_quirk,
+ .ident = "Gigabyte GA-990XA-UD3",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR,
+ "Gigabyte Technology Co., Ltd."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "GA-990XA-UD3"),
+ },
+ },
+ /* http://permalink.gmane.org/gmane.linux.kernel/1604474 */
+ {
+ .callback = set_alarm_disable_quirk,
+ .ident = "Toshiba Satellite L300",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Satellite L300"),
+ },
+ },
+ {}
+};
+
static int cmos_alarm_irq_enable(struct device *dev, unsigned int enabled)
{
struct cmos_rtc *cmos = dev_get_drvdata(dev);
@@ -385,6 +430,9 @@ static int cmos_alarm_irq_enable(struct device *dev, unsigned int enabled)
if (!is_valid_irq(cmos->irq))
return -EINVAL;

+ if (alarm_disable_quirk)
+ return 0;
+
spin_lock_irqsave(&rtc_lock, flags);

if (enabled)
@@ -1166,6 +1214,8 @@ static int __init cmos_init(void)
platform_driver_registered = true;
}

+ dmi_check_system(rtc_quirks);
+
if (retval == 0)
return 0;

diff --git a/drivers/scsi/bfa/bfad.c b/drivers/scsi/bfa/bfad.c
index 66fb725..633048b 100644
--- a/drivers/scsi/bfa/bfad.c
+++ b/drivers/scsi/bfa/bfad.c
@@ -1613,7 +1613,7 @@ out:
static u32 *
bfad_load_fwimg(struct pci_dev *pdev)
{
- if (pdev->device == BFA_PCI_DEVICE_ID_CT2) {
+ if (bfa_asic_id_ct2(pdev->device)) {
if (bfi_image_ct2_size == 0)
bfad_read_firmware(pdev, &bfi_image_ct2,
&bfi_image_ct2_size, BFAD_FW_FILE_CT2);
@@ -1623,12 +1623,14 @@ bfad_load_fwimg(struct pci_dev *pdev)
bfad_read_firmware(pdev, &bfi_image_ct,
&bfi_image_ct_size, BFAD_FW_FILE_CT);
return bfi_image_ct;
- } else {
+ } else if (bfa_asic_id_cb(pdev->device)) {
if (bfi_image_cb_size == 0)
bfad_read_firmware(pdev, &bfi_image_cb,
&bfi_image_cb_size, BFAD_FW_FILE_CB);
return bfi_image_cb;
}
+
+ return NULL;
}

static void
diff --git a/drivers/scsi/isci/host.h b/drivers/scsi/isci/host.h
index 646051a..ef84778 100644
--- a/drivers/scsi/isci/host.h
+++ b/drivers/scsi/isci/host.h
@@ -309,9 +309,8 @@ static inline struct isci_pci_info *to_pci_info(struct pci_dev *pdev)
}

#define for_each_isci_host(id, ihost, pdev) \
- for (id = 0, ihost = to_pci_info(pdev)->hosts[id]; \
- id < ARRAY_SIZE(to_pci_info(pdev)->hosts) && ihost; \
- ihost = to_pci_info(pdev)->hosts[++id])
+ for (id = 0; id < SCI_MAX_CONTROLLERS && \
+ (ihost = to_pci_info(pdev)->hosts[id]); id++)

static inline enum isci_status isci_host_get_state(struct isci_host *isci_host)
{
diff --git a/drivers/scsi/isci/port_config.c b/drivers/scsi/isci/port_config.c
index 38a99d2..21a6769 100644
--- a/drivers/scsi/isci/port_config.c
+++ b/drivers/scsi/isci/port_config.c
@@ -610,13 +610,6 @@ static void sci_apc_agent_link_up(struct isci_host *ihost,
sci_apc_agent_configure_ports(ihost, port_agent, iphy, true);
} else {
/* the phy is already the part of the port */
- u32 port_state = iport->sm.current_state_id;
-
- /* if the PORT'S state is resetting then the link up is from
- * port hard reset in this case, we need to tell the port
- * that link up is recieved
- */
- BUG_ON(port_state != SCI_PORT_RESETTING);
port_agent->phy_ready_mask |= 1 << phy_index;
sci_port_link_up(iport, iphy);
}
diff --git a/drivers/scsi/isci/task.c b/drivers/scsi/isci/task.c
index e294d11..60a530f 100644
--- a/drivers/scsi/isci/task.c
+++ b/drivers/scsi/isci/task.c
@@ -1390,7 +1390,7 @@ int isci_task_I_T_nexus_reset(struct domain_device *dev)
spin_unlock_irqrestore(&ihost->scic_lock, flags);

if (!idev || !test_bit(IDEV_EH, &idev->flags)) {
- ret = TMF_RESP_FUNC_COMPLETE;
+ ret = -ENODEV;
goto out;
}

diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h
index fcf052c..c491a94 100644
--- a/drivers/scsi/qla2xxx/qla_def.h
+++ b/drivers/scsi/qla2xxx/qla_def.h
@@ -2568,8 +2568,7 @@ struct qla_hw_data {
IS_QLA25XX(ha) || IS_QLA81XX(ha) || \
IS_QLA82XX(ha))
#define IS_MSIX_NACK_CAPABLE(ha) (IS_QLA81XX(ha))
-#define IS_NOPOLLING_TYPE(ha) ((IS_QLA25XX(ha) || IS_QLA81XX(ha)) && \
- (ha)->flags.msix_enabled)
+#define IS_NOPOLLING_TYPE(ha) (IS_QLA81XX(ha) && (ha)->flags.msix_enabled)
#define IS_FAC_REQUIRED(ha) (IS_QLA81XX(ha))
#define IS_NOCACHE_VPD_TYPE(ha) (IS_QLA81XX(ha))
#define IS_ALOGIO_CAPABLE(ha) (IS_QLA23XX(ha) || IS_FWI2_CAPABLE(ha))
diff --git a/drivers/staging/comedi/drivers/adv_pci1710.c b/drivers/staging/comedi/drivers/adv_pci1710.c
index da2b75b..672538e 100644
--- a/drivers/staging/comedi/drivers/adv_pci1710.c
+++ b/drivers/staging/comedi/drivers/adv_pci1710.c
@@ -414,6 +414,7 @@ static int pci171x_insn_write_ao(struct comedi_device *dev,
struct comedi_subdevice *s,
struct comedi_insn *insn, unsigned int *data)
{
+ unsigned int val;
int n, chan, range, ofs;

chan = CR_CHAN(insn->chanspec);
@@ -429,11 +430,14 @@ static int pci171x_insn_write_ao(struct comedi_device *dev,
outw(devpriv->da_ranges, dev->iobase + PCI171x_DAREF);
ofs = PCI171x_DA1;
}
+ val = devpriv->ao_data[chan];

- for (n = 0; n < insn->n; n++)
- outw(data[n], dev->iobase + ofs);
+ for (n = 0; n < insn->n; n++) {
+ val = data[n];
+ outw(val, dev->iobase + ofs);
+ }

- devpriv->ao_data[chan] = data[n];
+ devpriv->ao_data[chan] = val;

return n;

@@ -582,6 +586,7 @@ static int pci1720_insn_write_ao(struct comedi_device *dev,
struct comedi_subdevice *s,
struct comedi_insn *insn, unsigned int *data)
{
+ unsigned int val;
int n, rangereg, chan;

chan = CR_CHAN(insn->chanspec);
@@ -591,13 +596,15 @@ static int pci1720_insn_write_ao(struct comedi_device *dev,
outb(rangereg, dev->iobase + PCI1720_RANGE);
devpriv->da_ranges = rangereg;
}
+ val = devpriv->ao_data[chan];

for (n = 0; n < insn->n; n++) {
- outw(data[n], dev->iobase + PCI1720_DA0 + (chan << 1));
+ val = data[n];
+ outw(val, dev->iobase + PCI1720_DA0 + (chan << 1));
outb(0, dev->iobase + PCI1720_SYNCOUT); /* update outputs */
}

- devpriv->ao_data[chan] = data[n];
+ devpriv->ao_data[chan] = val;

return n;
}
diff --git a/drivers/staging/comedi/drivers/pcmuio.c b/drivers/staging/comedi/drivers/pcmuio.c
index b2c2c89..6c25bd3 100644
--- a/drivers/staging/comedi/drivers/pcmuio.c
+++ b/drivers/staging/comedi/drivers/pcmuio.c
@@ -464,13 +464,13 @@ static int pcmuio_detach(struct comedi_device *dev)
if (dev->iobase)
release_region(dev->iobase, ASIC_IOSIZE * thisboard->num_asics);

- for (i = 0; i < MAX_ASICS; ++i) {
- if (devpriv->asics[i].irq)
- free_irq(devpriv->asics[i].irq, dev);
- }
-
- if (devpriv && devpriv->sprivs)
+ if (devpriv) {
+ for (i = 0; i < MAX_ASICS; ++i) {
+ if (devpriv->asics[i].irq)
+ free_irq(devpriv->asics[i].irq, dev);
+ }
kfree(devpriv->sprivs);
+ }

return 0;
}
diff --git a/drivers/staging/comedi/drivers/ssv_dnp.c b/drivers/staging/comedi/drivers/ssv_dnp.c
index 526de2e..0316780 100644
--- a/drivers/staging/comedi/drivers/ssv_dnp.c
+++ b/drivers/staging/comedi/drivers/ssv_dnp.c
@@ -251,11 +251,11 @@ static int dnp_dio_insn_bits(struct comedi_device *dev,

/* on return, data[1] contains the value of the digital input lines. */
outb(PADR, CSCIR);
- data[0] = inb(CSCDR);
+ data[1] = inb(CSCDR);
outb(PBDR, CSCIR);
- data[0] += inb(CSCDR) << 8;
+ data[1] += inb(CSCDR) << 8;
outb(PCDR, CSCIR);
- data[0] += ((inb(CSCDR) & 0xF0) << 12);
+ data[1] += ((inb(CSCDR) & 0xF0) << 12);

return 2;

diff --git a/drivers/staging/iio/adc/ad799x_core.c b/drivers/staging/iio/adc/ad799x_core.c
index ee6cd79..f79d0cb 100644
--- a/drivers/staging/iio/adc/ad799x_core.c
+++ b/drivers/staging/iio/adc/ad799x_core.c
@@ -873,7 +873,8 @@ static int __devinit ad799x_probe(struct i2c_client *client,
return 0;

error_free_irq:
- free_irq(client->irq, indio_dev);
+ if (client->irq > 0)
+ free_irq(client->irq, indio_dev);
error_cleanup_ring:
ad799x_ring_cleanup(indio_dev);
error_disable_reg:
diff --git a/drivers/staging/rtl8712/usb_intf.c b/drivers/staging/rtl8712/usb_intf.c
index 88d1d35..a74e83d 100644
--- a/drivers/staging/rtl8712/usb_intf.c
+++ b/drivers/staging/rtl8712/usb_intf.c
@@ -363,6 +363,10 @@ static u8 key_2char2num(u8 hch, u8 lch)
return (hex_to_bin(hch) << 4) | hex_to_bin(lch);
}

+static const struct device_type wlan_type = {
+ .name = "wlan",
+};
+
/*
* drv_init() - a device potentially for us
*
@@ -398,6 +402,7 @@ static int r871xu_drv_init(struct usb_interface *pusb_intf,
padapter->pusb_intf = pusb_intf;
usb_set_intfdata(pusb_intf, pnetdev);
SET_NETDEV_DEV(pnetdev, &pusb_intf->dev);
+ pnetdev->dev.type = &wlan_type;
/* step 2. */
padapter->dvobj_init = &r8712_usb_dvobj_init;
padapter->dvobj_deinit = &r8712_usb_dvobj_deinit;
diff --git a/drivers/staging/vt6656/baseband.c b/drivers/staging/vt6656/baseband.c
index 0d11147..59cf674 100644
--- a/drivers/staging/vt6656/baseband.c
+++ b/drivers/staging/vt6656/baseband.c
@@ -1656,7 +1656,6 @@ BBvUpdatePreEDThreshold(

if( bScanning )
{ // need Max sensitivity //RSSI -69, -70,....
- if(pDevice->byBBPreEDIndex == 0) break;
pDevice->byBBPreEDIndex = 0;
ControlvWriteByte(pDevice, MESSAGE_REQUEST_BBREG, 0xC9, 0x00); //CR201(0xC9)
ControlvWriteByte(pDevice, MESSAGE_REQUEST_BBREG, 0xCE, 0x30); //CR206(0xCE)
@@ -1799,7 +1798,6 @@ BBvUpdatePreEDThreshold(

if( bScanning )
{ // need Max sensitivity //RSSI -69, -70, ...
- if(pDevice->byBBPreEDIndex == 0) break;
pDevice->byBBPreEDIndex = 0;
ControlvWriteByte(pDevice, MESSAGE_REQUEST_BBREG, 0xC9, 0x00); //CR201(0xC9)
ControlvWriteByte(pDevice, MESSAGE_REQUEST_BBREG, 0xCE, 0x24); //CR206(0xCE)
@@ -1951,7 +1949,6 @@ BBvUpdatePreEDThreshold(
case RF_VT3342A0: //RobertYu:20060627, testing table
if( bScanning )
{ // need Max sensitivity //RSSI -67, -68, ...
- if(pDevice->byBBPreEDIndex == 0) break;
pDevice->byBBPreEDIndex = 0;
ControlvWriteByte(pDevice, MESSAGE_REQUEST_BBREG, 0xC9, 0x00); //CR201(0xC9)
ControlvWriteByte(pDevice, MESSAGE_REQUEST_BBREG, 0xCE, 0x38); //CR206(0xCE)
diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index 45c13a6..4a88eea 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -50,7 +50,7 @@
static LIST_HEAD(g_tiqn_list);
static LIST_HEAD(g_np_list);
static DEFINE_SPINLOCK(tiqn_lock);
-static DEFINE_SPINLOCK(np_lock);
+static DEFINE_MUTEX(np_lock);

static struct idr tiqn_idr;
struct idr sess_idr;
@@ -262,6 +262,9 @@ int iscsit_deaccess_np(struct iscsi_np *np, struct iscsi_portal_group *tpg)
return 0;
}

+/*
+ * Called with mutex np_lock held
+ */
static struct iscsi_np *iscsit_get_np(
struct __kernel_sockaddr_storage *sockaddr,
int network_transport)
@@ -272,11 +275,10 @@ static struct iscsi_np *iscsit_get_np(
int ip_match = 0;
u16 port;

- spin_lock_bh(&np_lock);
list_for_each_entry(np, &g_np_list, np_list) {
- spin_lock(&np->np_thread_lock);
+ spin_lock_bh(&np->np_thread_lock);
if (np->np_thread_state != ISCSI_NP_THREAD_ACTIVE) {
- spin_unlock(&np->np_thread_lock);
+ spin_unlock_bh(&np->np_thread_lock);
continue;
}

@@ -309,13 +311,11 @@ static struct iscsi_np *iscsit_get_np(
* while iscsi_tpg_add_network_portal() is called.
*/
np->np_exports++;
- spin_unlock(&np->np_thread_lock);
- spin_unlock_bh(&np_lock);
+ spin_unlock_bh(&np->np_thread_lock);
return np;
}
- spin_unlock(&np->np_thread_lock);
+ spin_unlock_bh(&np->np_thread_lock);
}
- spin_unlock_bh(&np_lock);

return NULL;
}
@@ -329,16 +329,22 @@ struct iscsi_np *iscsit_add_np(
struct sockaddr_in6 *sock_in6;
struct iscsi_np *np;
int ret;
+
+ mutex_lock(&np_lock);
+
/*
* Locate the existing struct iscsi_np if already active..
*/
np = iscsit_get_np(sockaddr, network_transport);
- if (np)
+ if (np) {
+ mutex_unlock(&np_lock);
return np;
+ }

np = kzalloc(sizeof(struct iscsi_np), GFP_KERNEL);
if (!np) {
pr_err("Unable to allocate memory for struct iscsi_np\n");
+ mutex_unlock(&np_lock);
return ERR_PTR(-ENOMEM);
}

@@ -361,6 +367,7 @@ struct iscsi_np *iscsit_add_np(
ret = iscsi_target_setup_login_socket(np, sockaddr);
if (ret != 0) {
kfree(np);
+ mutex_unlock(&np_lock);
return ERR_PTR(ret);
}

@@ -369,6 +376,7 @@ struct iscsi_np *iscsit_add_np(
pr_err("Unable to create kthread: iscsi_np\n");
ret = PTR_ERR(np->np_thread);
kfree(np);
+ mutex_unlock(&np_lock);
return ERR_PTR(ret);
}
/*
@@ -379,10 +387,10 @@ struct iscsi_np *iscsit_add_np(
* point because iscsi_np has not been added to g_np_list yet.
*/
np->np_exports = 1;
+ np->np_thread_state = ISCSI_NP_THREAD_ACTIVE;

- spin_lock_bh(&np_lock);
list_add_tail(&np->np_list, &g_np_list);
- spin_unlock_bh(&np_lock);
+ mutex_unlock(&np_lock);

pr_debug("CORE[0] - Added Network Portal: %s:%hu on %s\n",
np->np_ip, np->np_port, (np->np_network_transport == ISCSI_TCP) ?
@@ -453,9 +461,9 @@ int iscsit_del_np(struct iscsi_np *np)
}
iscsit_del_np_comm(np);

- spin_lock_bh(&np_lock);
+ mutex_lock(&np_lock);
list_del(&np->np_list);
- spin_unlock_bh(&np_lock);
+ mutex_unlock(&np_lock);

pr_debug("CORE[0] - Removed Network Portal: %s:%hu on %s\n",
np->np_ip, np->np_port, (np->np_network_transport == ISCSI_TCP) ?
diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c
index d190269..643a0a0 100644
--- a/drivers/tty/n_gsm.c
+++ b/drivers/tty/n_gsm.c
@@ -1090,6 +1090,7 @@ static void gsm_control_modem(struct gsm_mux *gsm, u8 *data, int clen)
{
unsigned int addr = 0;
unsigned int modem = 0;
+ unsigned int brk = 0;
struct gsm_dlci *dlci;
int len = clen;
u8 *dp = data;
@@ -1116,6 +1117,16 @@ static void gsm_control_modem(struct gsm_mux *gsm, u8 *data, int clen)
if (len == 0)
return;
}
+ len--;
+ if (len > 0) {
+ while (gsm_read_ea(&brk, *dp++) == 0) {
+ len--;
+ if (len == 0)
+ return;
+ }
+ modem <<= 7;
+ modem |= (brk & 0x7f);
+ }
tty = tty_port_tty_get(&dlci->port);
gsm_process_modem(tty, dlci, modem, clen);
if (tty) {
diff --git a/drivers/tty/serial/8250.c b/drivers/tty/serial/8250.c
index cff03e5..33601f8 100644
--- a/drivers/tty/serial/8250.c
+++ b/drivers/tty/serial/8250.c
@@ -2701,6 +2701,10 @@ static void serial8250_config_port(struct uart_port *port, int flags)
if (up->port.type == PORT_16550A && up->port.iotype == UPIO_AU)
up->bugs |= UART_BUG_NOMSR;

+ /* HW bugs may trigger IRQ while IIR == NO_INT */
+ if (up->port.type == PORT_TEGRA)
+ up->bugs |= UART_BUG_NOMSR;
+
if (up->port.type != PORT_UNKNOWN && flags & UART_CONFIG_IRQ)
autoconfig_irq(up);

diff --git a/drivers/tty/serial/8250_pci.c b/drivers/tty/serial/8250_pci.c
index 6c9bcdf..ef24e96 100644
--- a/drivers/tty/serial/8250_pci.c
+++ b/drivers/tty/serial/8250_pci.c
@@ -1147,6 +1147,11 @@ pci_xr17c154_setup(struct serial_private *priv,
#define PCI_DEVICE_ID_TITAN_800E 0xA014
#define PCI_DEVICE_ID_TITAN_200EI 0xA016
#define PCI_DEVICE_ID_TITAN_200EISI 0xA017
+#define PCI_DEVICE_ID_TITAN_200V3 0xA306
+#define PCI_DEVICE_ID_TITAN_400V3 0xA310
+#define PCI_DEVICE_ID_TITAN_410V3 0xA312
+#define PCI_DEVICE_ID_TITAN_800V3 0xA314
+#define PCI_DEVICE_ID_TITAN_800V3B 0xA315
#define PCI_DEVICE_ID_OXSEMI_16PCI958 0x9538
#define PCIE_DEVICE_ID_NEO_2_OX_IBM 0x00F6
#define PCI_DEVICE_ID_PLX_CRONYX_OMEGA 0xc001
@@ -3465,6 +3470,21 @@ static struct pci_device_id serial_pci_tbl[] = {
{ PCI_VENDOR_ID_TITAN, PCI_DEVICE_ID_TITAN_200EISI,
PCI_ANY_ID, PCI_ANY_ID, 0, 0,
pbn_oxsemi_2_4000000 },
+ { PCI_VENDOR_ID_TITAN, PCI_DEVICE_ID_TITAN_200V3,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ pbn_b0_bt_2_921600 },
+ { PCI_VENDOR_ID_TITAN, PCI_DEVICE_ID_TITAN_400V3,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ pbn_b0_4_921600 },
+ { PCI_VENDOR_ID_TITAN, PCI_DEVICE_ID_TITAN_410V3,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ pbn_b0_4_921600 },
+ { PCI_VENDOR_ID_TITAN, PCI_DEVICE_ID_TITAN_800V3,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ pbn_b0_4_921600 },
+ { PCI_VENDOR_ID_TITAN, PCI_DEVICE_ID_TITAN_800V3B,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ pbn_b0_4_921600 },

{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S_10x_550,
PCI_ANY_ID, PCI_ANY_ID, 0, 0,
diff --git a/drivers/tty/serial/pmac_zilog.c b/drivers/tty/serial/pmac_zilog.c
index 086f7fe..a6caf62 100644
--- a/drivers/tty/serial/pmac_zilog.c
+++ b/drivers/tty/serial/pmac_zilog.c
@@ -2198,6 +2198,9 @@ static int __init pmz_console_init(void)
/* Probe ports */
pmz_probe();

+ if (pmz_ports_count == 0)
+ return -ENODEV;
+
/* TODO: Autoprobe console based on OF */
/* pmz_console.index = i; */
register_console(&pmz_console);
diff --git a/drivers/usb/core/config.c b/drivers/usb/core/config.c
index 78609d3..1e3e211 100644
--- a/drivers/usb/core/config.c
+++ b/drivers/usb/core/config.c
@@ -722,6 +722,10 @@ int usb_get_configuration(struct usb_device *dev)
result = -ENOMEM;
goto err;
}
+
+ if (dev->quirks & USB_QUIRK_DELAY_INIT)
+ msleep(100);
+
result = usb_get_descriptor(dev, USB_DT_CONFIG, cfgno,
bigbuffer, length);
if (result < 0) {
diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
index bcde6f6..3677d22 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -46,6 +46,10 @@ static const struct usb_device_id usb_quirk_list[] = {
/* Microsoft LifeCam-VX700 v2.0 */
{ USB_DEVICE(0x045e, 0x0770), .driver_info = USB_QUIRK_RESET_RESUME },

+ /* Logitech HD Pro Webcams C920 and C930e */
+ { USB_DEVICE(0x046d, 0x082d), .driver_info = USB_QUIRK_DELAY_INIT },
+ { USB_DEVICE(0x046d, 0x0843), .driver_info = USB_QUIRK_DELAY_INIT },
+
/* Logitech Quickcam Fusion */
{ USB_DEVICE(0x046d, 0x08c1), .driver_info = USB_QUIRK_RESET_RESUME },

diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 339be10..2abdad6 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -807,8 +807,15 @@ static irqreturn_t ehci_irq (struct usb_hcd *hcd)
struct ehci_hcd *ehci = hcd_to_ehci (hcd);
u32 status, masked_status, pcd_status = 0, cmd;
int bh;
+ unsigned long flags;

- spin_lock (&ehci->lock);
+ /*
+ * For threadirqs option we use spin_lock_irqsave() variant to prevent
+ * deadlock with ehci hrtimer callback, because hrtimer callbacks run
+ * in interrupt context even when threadirqs is specified. We can go
+ * back to spin_lock() variant when hrtimer callbacks become threaded.
+ */
+ spin_lock_irqsave(&ehci->lock, flags);

status = ehci_readl(ehci, &ehci->regs->status);

@@ -826,7 +833,7 @@ static irqreturn_t ehci_irq (struct usb_hcd *hcd)

/* Shared IRQ? */
if (!masked_status || unlikely(ehci->rh_state == EHCI_RH_HALTED)) {
- spin_unlock(&ehci->lock);
+ spin_unlock_irqrestore(&ehci->lock, flags);
return IRQ_NONE;
}

@@ -929,7 +936,7 @@ dead:

if (bh)
ehci_work (ehci);
- spin_unlock (&ehci->lock);
+ spin_unlock_irqrestore(&ehci->lock, flags);
if (pcd_status)
usb_hcd_poll_rh_status(hcd);
return IRQ_HANDLED;
diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c
index 77bbb23..4527b90 100644
--- a/drivers/usb/host/ehci-hub.c
+++ b/drivers/usb/host/ehci-hub.c
@@ -207,6 +207,7 @@ static int ehci_bus_suspend (struct usb_hcd *hcd)
int port;
int mask;
int changed;
+ bool fs_idle_delay;

ehci_dbg(ehci, "suspend root hub\n");

@@ -249,6 +250,7 @@ static int ehci_bus_suspend (struct usb_hcd *hcd)
ehci->bus_suspended = 0;
ehci->owned_ports = 0;
changed = 0;
+ fs_idle_delay = false;
port = HCS_N_PORTS(ehci->hcs_params);
while (port--) {
u32 __iomem *reg = &ehci->regs->port_status [port];
@@ -279,16 +281,34 @@ static int ehci_bus_suspend (struct usb_hcd *hcd)
if (t1 != t2) {
ehci_vdbg (ehci, "port %d, %08x -> %08x\n",
port + 1, t1, t2);
+ /*
+ * On some controllers, Wake-On-Disconnect will
+ * generate false wakeup signals until the bus
+ * switches over to full-speed idle. For their
+ * sake, add a delay if we need one.
+ */
+ if ((t2 & PORT_WKDISC_E) &&
+ ehci_port_speed(ehci, t2) ==
+ USB_PORT_STAT_HIGH_SPEED)
+ fs_idle_delay = true;
ehci_writel(ehci, t2, reg);
changed = 1;
}
}
+ spin_unlock_irq(&ehci->lock);
+
+ if ((changed && ehci->has_hostpc) || fs_idle_delay) {
+ /*
+ * Wait for HCD to enter low-power mode or for the bus
+ * to switch to full-speed idle.
+ */
+ usleep_range(5000, 5500);
+ }
+
+ spin_lock_irq(&ehci->lock);

if (changed && ehci->has_hostpc) {
- spin_unlock_irq(&ehci->lock);
- msleep(5); /* 5 ms for HCD to enter low-power mode */
spin_lock_irq(&ehci->lock);
-
port = HCS_N_PORTS(ehci->hcs_params);
while (port--) {
u32 __iomem *hostpc_reg;
diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h
index 0a5fda7..b65912d 100644
--- a/drivers/usb/host/ehci.h
+++ b/drivers/usb/host/ehci.h
@@ -147,6 +147,7 @@ struct ehci_hcd { /* one per controller */
unsigned use_dummy_qh:1; /* AMD Frame List table quirk*/
unsigned has_synopsys_hc_bug:1; /* Synopsys HC */
unsigned frame_index_bug:1; /* MosChip (AKA NetMos) */
+ unsigned imx28_write_fix:1; /* For Freescale i.MX28 */

/* required for usb32 quirk */
#define OHCI_CTRL_HCFS (3 << 6)
@@ -654,6 +655,18 @@ static inline unsigned int ehci_readl(const struct ehci_hcd *ehci,
#endif
}

+#ifdef CONFIG_SOC_IMX28
+static inline void imx28_ehci_writel(const unsigned int val,
+ volatile __u32 __iomem *addr)
+{
+ __asm__ ("swp %0, %0, [%1]" : : "r"(val), "r"(addr));
+}
+#else
+static inline void imx28_ehci_writel(const unsigned int val,
+ volatile __u32 __iomem *addr)
+{
+}
+#endif
static inline void ehci_writel(const struct ehci_hcd *ehci,
const unsigned int val, __u32 __iomem *regs)
{
@@ -662,7 +675,10 @@ static inline void ehci_writel(const struct ehci_hcd *ehci,
writel_be(val, regs) :
writel(val, regs);
#else
- writel(val, regs);
+ if (ehci->imx28_write_fix)
+ imx28_ehci_writel(val, regs);
+ else
+ writel(val, regs);
#endif
}

diff --git a/drivers/usb/serial/cypress_m8.h b/drivers/usb/serial/cypress_m8.h
index b461311..ce13e61 100644
--- a/drivers/usb/serial/cypress_m8.h
+++ b/drivers/usb/serial/cypress_m8.h
@@ -63,7 +63,7 @@
#define UART_DSR 0x20 /* data set ready - flow control - device to host */
#define CONTROL_RTS 0x10 /* request to send - flow control - host to device */
#define UART_CTS 0x10 /* clear to send - flow control - device to host */
-#define UART_RI 0x10 /* ring indicator - modem - device to host */
+#define UART_RI 0x80 /* ring indicator - modem - device to host */
#define UART_CD 0x40 /* carrier detect - modem - device to host */
#define CYP_ERROR 0x08 /* received from input report - device to host */
/* Note - the below has nothing to do with the "feature report" reset */
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index 85504bb..5c97d9f 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -163,6 +163,7 @@ static struct usb_device_id id_table_combined [] = {
{ USB_DEVICE(FTDI_VID, FTDI_CANUSB_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_CANDAPTER_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_NXTCAM_PID) },
+ { USB_DEVICE(FTDI_VID, FTDI_EV3CON_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_0_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_1_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_2_PID) },
@@ -202,6 +203,8 @@ static struct usb_device_id id_table_combined [] = {
{ USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_IOBOARD_PID) },
{ USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_MINI_IOBOARD_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_SPROG_II) },
+ { USB_DEVICE(FTDI_VID, FTDI_TAGSYS_LP101_PID) },
+ { USB_DEVICE(FTDI_VID, FTDI_TAGSYS_P200X_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_LENZ_LIUSB_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_XF_632_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_XF_634_PID) },
@@ -914,6 +917,9 @@ static struct usb_device_id id_table_combined [] = {
{ USB_DEVICE(FTDI_VID, FTDI_LUMEL_PD12_PID) },
/* Crucible Devices */
{ USB_DEVICE(FTDI_VID, FTDI_CT_COMET_PID) },
+ { USB_DEVICE(FTDI_VID, FTDI_Z3X_PID) },
+ /* Cressi Devices */
+ { USB_DEVICE(FTDI_VID, FTDI_CRESSI_PID) },
{ }, /* Optional parameter entry */
{ } /* Terminating entry */
};
@@ -2193,10 +2199,20 @@ static void ftdi_set_termios(struct tty_struct *tty,
}

/*
- * All FTDI UART chips are limited to CS7/8. We won't pretend to
+ * All FTDI UART chips are limited to CS7/8. We shouldn't pretend to
* support CS5/6 and revert the CSIZE setting instead.
+ *
+ * CS5 however is used to control some smartcard readers which abuse
+ * this limitation to switch modes. Original FTDI chips fall back to
+ * eight data bits.
+ *
+ * TODO: Implement a quirk to only allow this with mentioned
+ * readers. One I know of (Argolis Smartreader V1)
+ * returns "USB smartcard server" as iInterface string.
+ * The vendor didn't bother with a custom VID/PID of
+ * course.
*/
- if ((C_CSIZE(tty) != CS8) && (C_CSIZE(tty) != CS7)) {
+ if (C_CSIZE(tty) == CS6) {
dev_warn(&port->dev, "requested CSIZE setting not supported\n");

termios->c_cflag &= ~CSIZE;
@@ -2243,6 +2259,9 @@ no_skip:
urb_value |= FTDI_SIO_SET_DATA_PARITY_NONE;
}
switch (cflag & CSIZE) {
+ case CS5:
+ dev_dbg(&port->dev, "Setting CS5 quirk\n");
+ break;
case CS7:
urb_value |= 7;
dev_dbg(&port->dev, "Setting CS7\n");
diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h
index 61685ed..71fe2de 100644
--- a/drivers/usb/serial/ftdi_sio_ids.h
+++ b/drivers/usb/serial/ftdi_sio_ids.h
@@ -50,6 +50,7 @@
#define TI_XDS100V2_PID 0xa6d0

#define FTDI_NXTCAM_PID 0xABB8 /* NXTCam for Mindstorms NXT */
+#define FTDI_EV3CON_PID 0xABB9 /* Mindstorms EV3 Console Adapter */

/* US Interface Navigator (http://www.usinterface.com/) */
#define FTDI_USINT_CAT_PID 0xb810 /* Navigator CAT and 2nd PTT lines */
@@ -363,6 +364,12 @@
/* Sprog II (Andrew Crosland's SprogII DCC interface) */
#define FTDI_SPROG_II 0xF0C8

+/*
+ * Two of the Tagsys RFID Readers
+ */
+#define FTDI_TAGSYS_LP101_PID 0xF0E9 /* Tagsys L-P101 RFID*/
+#define FTDI_TAGSYS_P200X_PID 0xF0EE /* Tagsys Medio P200x RFID*/
+
/* an infrared receiver for user access control with IR tags */
#define FTDI_PIEGROUP_PID 0xF208 /* Product Id */

@@ -1307,3 +1314,15 @@
* Manufacturer: Crucible Technologies
*/
#define FTDI_CT_COMET_PID 0x8e08
+
+/*
+ * Product: Z3X Box
+ * Manufacturer: Smart GSM Team
+ */
+#define FTDI_Z3X_PID 0x0011
+
+/*
+ * Product: Cressi PC Interface
+ * Manufacturer: Cressi
+ */
+#define FTDI_CRESSI_PID 0x87d0
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index d6d0fb4..5f5047f 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -325,6 +325,9 @@ static void option_instat_callback(struct urb *urb);
* It seems to contain a Qualcomm QSC6240/6290 chipset */
#define FOUR_G_SYSTEMS_PRODUCT_W14 0x9603

+/* iBall 3.5G connect wireless modem */
+#define IBALL_3_5G_CONNECT 0x9605
+
/* Zoom */
#define ZOOM_PRODUCT_4597 0x9607

@@ -1373,7 +1376,8 @@ static const struct usb_device_id option_ids[] = {
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1267, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1268, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1269, 0xff, 0xff, 0xff) },
- { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1270, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1270, 0xff, 0xff, 0xff),
+ .driver_info = (kernel_ulong_t)&net_intf5_blacklist },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1271, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1272, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1273, 0xff, 0xff, 0xff) },
@@ -1461,6 +1465,17 @@ static const struct usb_device_id option_ids[] = {
.driver_info = (kernel_ulong_t)&net_intf3_blacklist },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0178, 0xff, 0xff, 0xff),
.driver_info = (kernel_ulong_t)&net_intf3_blacklist },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffe9, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff8b, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff8c, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff8d, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff8e, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff8f, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff90, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff91, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff92, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff93, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff94, 0xff, 0xff, 0xff) },

{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_CDMA_TECH, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_AC8710, 0xff, 0xff, 0xff) },
@@ -1509,6 +1524,7 @@ static const struct usb_device_id option_ids[] = {
.driver_info = (kernel_ulong_t)&four_g_w14_blacklist
},
{ USB_DEVICE(LONGCHEER_VENDOR_ID, ZOOM_PRODUCT_4597) },
+ { USB_DEVICE(LONGCHEER_VENDOR_ID, IBALL_3_5G_CONNECT) },
{ USB_DEVICE(HAIER_VENDOR_ID, HAIER_PRODUCT_CE100) },
/* Pirelli */
{ USB_DEVICE(PIRELLI_VENDOR_ID, PIRELLI_PRODUCT_C100_1)},
@@ -1530,7 +1546,8 @@ static const struct usb_device_id option_ids[] = {
/* Cinterion */
{ USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_EU3_E) },
{ USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_EU3_P) },
- { USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_PH8) },
+ { USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_PH8),
+ .driver_info = (kernel_ulong_t)&net_intf4_blacklist },
{ USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_AHXX) },
{ USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_PLXX),
.driver_info = (kernel_ulong_t)&net_intf4_blacklist },
diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c
index e3936c1..7b29317 100644
--- a/drivers/usb/serial/pl2303.c
+++ b/drivers/usb/serial/pl2303.c
@@ -153,6 +153,8 @@ struct pl2303_private {
u8 line_control;
u8 line_status;
enum pl2303_type type;
+
+ u8 line_settings[7];
};

static int pl2303_vendor_read(__u16 value, __u16 index,
@@ -266,10 +268,6 @@ static void pl2303_set_termios(struct tty_struct *tty,

dbg("%s - port %d", __func__, port->number);

- /* The PL2303 is reported to lose bytes if you change
- serial settings even to the same values as before. Thus
- we actually need to filter in this specific case */
-
if (old_termios && !tty_termios_hw_change(tty->termios, old_termios))
return;

@@ -407,10 +405,29 @@ static void pl2303_set_termios(struct tty_struct *tty,
dbg("%s - parity = none", __func__);
}

- i = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
- SET_LINE_REQUEST, SET_LINE_REQUEST_TYPE,
- 0, 0, buf, 7, 100);
- dbg("0x21:0x20:0:0 %d", i);
+ /*
+ * Some PL2303 are known to lose bytes if you change serial settings
+ * even to the same values as before. Thus we actually need to filter
+ * in this specific case.
+ *
+ * Note that the tty_termios_hw_change check above is not sufficient
+ * as a previously requested baud rate may differ from the one
+ * actually used (and stored in old_termios).
+ *
+ * NOTE: No additional locking needed for line_settings as it is
+ * only used in set_termios, which is serialised against itself.
+ */
+ if (!old_termios || memcmp(buf, priv->line_settings, 7)) {
+ i = usb_control_msg(serial->dev,
+ usb_sndctrlpipe(serial->dev, 0),
+ SET_LINE_REQUEST, SET_LINE_REQUEST_TYPE,
+ 0, 0, buf, 7, 100);
+
+ dbg("0x21:0x20:0:0 %d", i);
+
+ if (i == 7)
+ memcpy(priv->line_settings, buf, 7);
+ }

/* change control lines if we are switching to or from B0 */
spin_lock_irqsave(&priv->lock, flags);
diff --git a/drivers/usb/storage/Kconfig b/drivers/usb/storage/Kconfig
index 303c34b..3460ee8 100644
--- a/drivers/usb/storage/Kconfig
+++ b/drivers/usb/storage/Kconfig
@@ -19,7 +19,9 @@ config USB_STORAGE

This option depends on 'SCSI' support being enabled, but you
probably also need 'SCSI device support: SCSI disk support'
- (BLK_DEV_SD) for most USB storage devices.
+ (BLK_DEV_SD) for most USB storage devices. Some devices also
+ will require 'Probe all LUNs on each SCSI device'
+ (SCSI_MULTI_LUN).

To compile this driver as a module, choose M here: the
module will be called usb-storage.
diff --git a/drivers/usb/storage/scsiglue.c b/drivers/usb/storage/scsiglue.c
index 13b8bcd..eb660bb 100644
--- a/drivers/usb/storage/scsiglue.c
+++ b/drivers/usb/storage/scsiglue.c
@@ -116,6 +116,10 @@ static int slave_alloc (struct scsi_device *sdev)
if (us->subclass == USB_SC_UFI)
sdev->sdev_target->pdt_1f_for_no_lun = 1;

+ /* Tell the SCSI layer if we know there is more than one LUN */
+ if (us->protocol == USB_PR_BULK && us->max_lun > 0)
+ sdev->sdev_bflags |= BLIST_FORCELUN;
+
return 0;
}

diff --git a/drivers/usb/storage/unusual_cypress.h b/drivers/usb/storage/unusual_cypress.h
index 65a6a75..82e8ed0 100644
--- a/drivers/usb/storage/unusual_cypress.h
+++ b/drivers/usb/storage/unusual_cypress.h
@@ -31,7 +31,7 @@ UNUSUAL_DEV( 0x04b4, 0x6831, 0x0000, 0x9999,
"Cypress ISD-300LP",
USB_SC_CYP_ATACB, USB_PR_DEVICE, NULL, 0),

-UNUSUAL_DEV( 0x14cd, 0x6116, 0x0000, 0x0219,
+UNUSUAL_DEV( 0x14cd, 0x6116, 0x0160, 0x0160,
"Super Top",
"USB 2.0 SATA BRIDGE",
USB_SC_CYP_ATACB, USB_PR_DEVICE, NULL, 0),
diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h
index 8a3b531..08711bc 100644
--- a/drivers/usb/storage/unusual_devs.h
+++ b/drivers/usb/storage/unusual_devs.h
@@ -226,6 +226,13 @@ UNUSUAL_DEV( 0x0421, 0x0495, 0x0370, 0x0370,
USB_SC_DEVICE, USB_PR_DEVICE, NULL,
US_FL_MAX_SECTORS_64 ),

+/* Patch submitted by Mikhail Zolotaryov <lebon@xxxxxxxxxxxx> */
+UNUSUAL_DEV( 0x0421, 0x06aa, 0x1110, 0x1110,
+ "Nokia",
+ "502",
+ USB_SC_DEVICE, USB_PR_DEVICE, NULL,
+ US_FL_MAX_SECTORS_64 ),
+
#ifdef NO_SDDR09
UNUSUAL_DEV( 0x0436, 0x0005, 0x0100, 0x0100,
"Microtech",
@@ -1434,6 +1441,13 @@ UNUSUAL_DEV( 0x0f88, 0x042e, 0x0100, 0x0100,
USB_SC_DEVICE, USB_PR_DEVICE, NULL,
US_FL_FIX_CAPACITY ),

+/* Reported by Moritz Moeller-Herrmann <moritz-kernel@xxxxxxxxxxxxxxxxxxx> */
+UNUSUAL_DEV( 0x0fca, 0x8004, 0x0201, 0x0201,
+ "Research In Motion",
+ "BlackBerry Bold 9000",
+ USB_SC_DEVICE, USB_PR_DEVICE, NULL,
+ US_FL_MAX_SECTORS_64 ),
+
/* Reported by Michael Stattmann <michael@xxxxxxxxxxxxx> */
UNUSUAL_DEV( 0x0fce, 0xd008, 0x0000, 0x0000,
"Sony Ericsson",
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 49eefdb..f63719a 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -6725,7 +6725,7 @@ out:
*/
if (root_dropped == false)
btrfs_add_dead_root(root);
- if (err)
+ if (err && err != -EAGAIN)
btrfs_std_error(root->fs_info, err);
return;
}
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 1372634..622d322 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -56,7 +56,7 @@
#include "inode-map.h"

struct btrfs_iget_args {
- u64 ino;
+ struct btrfs_key *location;
struct btrfs_root *root;
};

@@ -3847,7 +3847,9 @@ again:
static int btrfs_init_locked_inode(struct inode *inode, void *p)
{
struct btrfs_iget_args *args = p;
- inode->i_ino = args->ino;
+ inode->i_ino = args->location->objectid;
+ memcpy(&BTRFS_I(inode)->location, args->location,
+ sizeof(*args->location));
BTRFS_I(inode)->root = args->root;
btrfs_set_inode_space_info(args->root, inode);
return 0;
@@ -3856,20 +3858,20 @@ static int btrfs_init_locked_inode(struct inode *inode, void *p)
static int btrfs_find_actor(struct inode *inode, void *opaque)
{
struct btrfs_iget_args *args = opaque;
- return args->ino == btrfs_ino(inode) &&
+ return args->location->objectid == BTRFS_I(inode)->location.objectid &&
args->root == BTRFS_I(inode)->root;
}

static struct inode *btrfs_iget_locked(struct super_block *s,
- u64 objectid,
+ struct btrfs_key *location,
struct btrfs_root *root)
{
struct inode *inode;
struct btrfs_iget_args args;
- args.ino = objectid;
+ args.location = location;
args.root = root;

- inode = iget5_locked(s, objectid, btrfs_find_actor,
+ inode = iget5_locked(s, location->objectid, btrfs_find_actor,
btrfs_init_locked_inode,
(void *)&args);
return inode;
@@ -3883,13 +3885,11 @@ struct inode *btrfs_iget(struct super_block *s, struct btrfs_key *location,
{
struct inode *inode;

- inode = btrfs_iget_locked(s, location->objectid, root);
+ inode = btrfs_iget_locked(s, location, root);
if (!inode)
return ERR_PTR(-ENOMEM);

if (inode->i_state & I_NEW) {
- BTRFS_I(inode)->root = root;
- memcpy(&BTRFS_I(inode)->location, location, sizeof(*location));
btrfs_read_locked_inode(inode);
if (!is_bad_inode(inode)) {
inode_tree_add(inode);
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 618ae6f..7cbe2f8 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -1327,12 +1327,17 @@ static noinline int btrfs_ioctl_snap_create_transid(struct file *file,
printk(KERN_INFO "btrfs: Snapshot src from "
"another FS\n");
ret = -EINVAL;
- fput(src_file);
- goto out;
+ } else if (!inode_owner_or_capable(src_inode)) {
+ /*
+ * Subvolume creation is not restricted, but snapshots
+ * are limited to own subvolumes only
+ */
+ ret = -EPERM;
+ } else {
+ ret = btrfs_mksubvol(&file->f_path, name, namelen,
+ BTRFS_I(src_inode)->root,
+ transid, readonly);
}
- ret = btrfs_mksubvol(&file->f_path, name, namelen,
- BTRFS_I(src_inode)->root,
- transid, readonly);
fput(src_file);
}
out:
diff --git a/fs/buffer.c b/fs/buffer.c
index 19a4f0b..5f4bde2 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -663,14 +663,16 @@ EXPORT_SYMBOL(mark_buffer_dirty_inode);
static void __set_page_dirty(struct page *page,
struct address_space *mapping, int warn)
{
- spin_lock_irq(&mapping->tree_lock);
+ unsigned long flags;
+
+ spin_lock_irqsave(&mapping->tree_lock, flags);
if (page->mapping) { /* Race with truncate? */
WARN_ON_ONCE(warn && !PageUptodate(page));
account_page_dirtied(page, mapping);
radix_tree_tag_set(&mapping->page_tree,
page_index(page), PAGECACHE_TAG_DIRTY);
}
- spin_unlock_irq(&mapping->tree_lock);
+ spin_unlock_irqrestore(&mapping->tree_lock, flags);
__mark_inode_dirty(mapping->host, I_DIRTY_PAGES);
}

diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 56c152d..49d6e21 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -1113,7 +1113,8 @@ cifs_parse_mount_options(const char *mountdata, const char *devname,
cERROR(1, "Krb5 cifs privacy not supported");
goto cifs_parse_mount_err;
} else if (strnicmp(value, "krb5", 4) == 0) {
- vol->secFlg |= CIFSSEC_MAY_KRB5;
+ vol->secFlg |= CIFSSEC_MAY_KRB5 |
+ CIFSSEC_MAY_SIGN;
} else if (strnicmp(value, "ntlmsspi", 8) == 0) {
vol->secFlg |= CIFSSEC_MAY_NTLMSSP |
CIFSSEC_MUST_SIGN;
diff --git a/fs/exofs/ore.c b/fs/exofs/ore.c
index 26bb512..df4a10f 100644
--- a/fs/exofs/ore.c
+++ b/fs/exofs/ore.c
@@ -103,7 +103,7 @@ int ore_verify_layout(unsigned total_comps, struct ore_layout *layout)

layout->max_io_length =
(BIO_MAX_PAGES_KMALLOC * PAGE_SIZE - layout->stripe_unit) *
- layout->group_width;
+ (layout->group_width - layout->parity);
if (layout->parity) {
unsigned stripe_length =
(layout->group_width - layout->parity) *
@@ -286,7 +286,8 @@ int ore_get_rw_state(struct ore_layout *layout, struct ore_components *oc,
if (length) {
ore_calc_stripe_info(layout, offset, length, &ios->si);
ios->length = ios->si.length;
- ios->nr_pages = (ios->length + PAGE_SIZE - 1) / PAGE_SIZE;
+ ios->nr_pages = ((ios->offset & (PAGE_SIZE - 1)) +
+ ios->length + PAGE_SIZE - 1) / PAGE_SIZE;
if (layout->parity)
_ore_post_alloc_raid_stuff(ios);
}
@@ -536,6 +537,7 @@ void ore_calc_stripe_info(struct ore_layout *layout, u64 file_offset,
u64 H = LmodS - G * T;

u32 N = div_u64(H, U);
+ u32 Nlast;

/* "H - (N * U)" is just "H % U" so it's bound to u32 */
u32 C = (u32)(H - (N * U)) / stripe_unit + G * group_width;
@@ -568,6 +570,10 @@ void ore_calc_stripe_info(struct ore_layout *layout, u64 file_offset,
si->length = T - H;
if (si->length > length)
si->length = length;
+
+ Nlast = div_u64(H + si->length + U - 1, U);
+ si->maxdevUnits = Nlast - N;
+
si->M = M;
}
EXPORT_SYMBOL(ore_calc_stripe_info);
@@ -583,13 +589,16 @@ int _ore_add_stripe_unit(struct ore_io_state *ios, unsigned *cur_pg,
int ret;

if (per_dev->bio == NULL) {
- unsigned pages_in_stripe = ios->layout->group_width *
- (ios->layout->stripe_unit / PAGE_SIZE);
- unsigned nr_pages = ios->nr_pages * ios->layout->group_width /
- (ios->layout->group_width -
- ios->layout->parity);
- unsigned bio_size = (nr_pages + pages_in_stripe) /
- ios->layout->group_width;
+ unsigned bio_size;
+
+ if (!ios->reading) {
+ bio_size = ios->si.maxdevUnits;
+ } else {
+ bio_size = (ios->si.maxdevUnits + 1) *
+ (ios->layout->group_width - ios->layout->parity) /
+ ios->layout->group_width;
+ }
+ bio_size *= (ios->layout->stripe_unit / PAGE_SIZE);

per_dev->bio = bio_kmalloc(GFP_KERNEL, bio_size);
if (unlikely(!per_dev->bio)) {
@@ -609,8 +618,12 @@ int _ore_add_stripe_unit(struct ore_io_state *ios, unsigned *cur_pg,
added_len = bio_add_pc_page(q, per_dev->bio, pages[pg],
pglen, pgbase);
if (unlikely(pglen != added_len)) {
- ORE_DBGMSG("Failed bio_add_pc_page bi_vcnt=%u\n",
- per_dev->bio->bi_vcnt);
+ /* If bi_vcnt == bi_max then this is a SW BUG */
+ ORE_DBGMSG("Failed bio_add_pc_page bi_vcnt=0x%x "
+ "bi_max=0x%x BIO_MAX=0x%x cur_len=0x%x\n",
+ per_dev->bio->bi_vcnt,
+ per_dev->bio->bi_max_vecs,
+ BIO_MAX_PAGES_KMALLOC, cur_len);
ret = -ENOMEM;
goto out;
}
@@ -1099,7 +1112,7 @@ int ore_truncate(struct ore_layout *layout, struct ore_components *oc,
size_attr->attr = g_attr_logical_length;
size_attr->attr.val_ptr = &size_attr->newsize;

- ORE_DBGMSG("trunc(0x%llx) obj_offset=0x%llx dev=%d\n",
+ ORE_DBGMSG2("trunc(0x%llx) obj_offset=0x%llx dev=%d\n",
_LLU(oc->comps->obj.id), _LLU(obj_size), i);
ret = _truncate_mirrors(ios, i * ios->layout->mirrors_p1,
&size_attr->attr);
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 68b1602..40f4d06 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -745,6 +745,8 @@ do { \
if (EXT4_FITS_IN_INODE(raw_inode, einode, xtime)) \
(einode)->xtime.tv_sec = \
(signed)le32_to_cpu((raw_inode)->xtime); \
+ else \
+ (einode)->xtime.tv_sec = 0; \
if (EXT4_FITS_IN_INODE(raw_inode, einode, xtime ## _extra)) \
ext4_decode_extra_time(&(einode)->xtime, \
raw_inode->xtime ## _extra); \
diff --git a/fs/file.c b/fs/file.c
index 4c6992d..30bfc99 100644
--- a/fs/file.c
+++ b/fs/file.c
@@ -47,7 +47,7 @@ static void *alloc_fdmem(unsigned int size)
* vmalloc() if the allocation size will be considered "large" by the VM.
*/
if (size <= (PAGE_SIZE << PAGE_ALLOC_COSTLY_ORDER)) {
- void *data = kmalloc(size, GFP_KERNEL|__GFP_NOWARN);
+ void *data = kmalloc(size, GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY);
if (data != NULL)
return data;
}
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index 5c029fb..cf0098d 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -1199,22 +1199,6 @@ static ssize_t fuse_dev_read(struct kiocb *iocb, const struct iovec *iov,
return fuse_dev_do_read(fc, file, &cs, iov_length(iov, nr_segs));
}

-static int fuse_dev_pipe_buf_steal(struct pipe_inode_info *pipe,
- struct pipe_buffer *buf)
-{
- return 1;
-}
-
-static const struct pipe_buf_operations fuse_dev_pipe_buf_ops = {
- .can_merge = 0,
- .map = generic_pipe_buf_map,
- .unmap = generic_pipe_buf_unmap,
- .confirm = generic_pipe_buf_confirm,
- .release = generic_pipe_buf_release,
- .steal = fuse_dev_pipe_buf_steal,
- .get = generic_pipe_buf_get,
-};
-
static ssize_t fuse_dev_splice_read(struct file *in, loff_t *ppos,
struct pipe_inode_info *pipe,
size_t len, unsigned int flags)
@@ -1261,7 +1245,11 @@ static ssize_t fuse_dev_splice_read(struct file *in, loff_t *ppos,
buf->page = bufs[page_nr].page;
buf->offset = bufs[page_nr].offset;
buf->len = bufs[page_nr].len;
- buf->ops = &fuse_dev_pipe_buf_ops;
+ /*
+ * Need to be careful about this. Having buf->ops in module
+ * code can Oops if the buffer persists after module unload.
+ */
+ buf->ops = &nosteal_pipe_buf_ops;

pipe->nrbufs++;
page_nr++;
diff --git a/fs/hpfs/alloc.c b/fs/hpfs/alloc.c
index 7a5eb2c..e0d57c0 100644
--- a/fs/hpfs/alloc.c
+++ b/fs/hpfs/alloc.c
@@ -8,6 +8,58 @@

#include "hpfs_fn.h"

+static void hpfs_claim_alloc(struct super_block *s, secno sec)
+{
+ struct hpfs_sb_info *sbi = hpfs_sb(s);
+ if (sbi->sb_n_free != (unsigned)-1) {
+ if (unlikely(!sbi->sb_n_free)) {
+ hpfs_error(s, "free count underflow, allocating sector %08x", sec);
+ sbi->sb_n_free = -1;
+ return;
+ }
+ sbi->sb_n_free--;
+ }
+}
+
+static void hpfs_claim_free(struct super_block *s, secno sec)
+{
+ struct hpfs_sb_info *sbi = hpfs_sb(s);
+ if (sbi->sb_n_free != (unsigned)-1) {
+ if (unlikely(sbi->sb_n_free >= sbi->sb_fs_size)) {
+ hpfs_error(s, "free count overflow, freeing sector %08x", sec);
+ sbi->sb_n_free = -1;
+ return;
+ }
+ sbi->sb_n_free++;
+ }
+}
+
+static void hpfs_claim_dirband_alloc(struct super_block *s, secno sec)
+{
+ struct hpfs_sb_info *sbi = hpfs_sb(s);
+ if (sbi->sb_n_free_dnodes != (unsigned)-1) {
+ if (unlikely(!sbi->sb_n_free_dnodes)) {
+ hpfs_error(s, "dirband free count underflow, allocating sector %08x", sec);
+ sbi->sb_n_free_dnodes = -1;
+ return;
+ }
+ sbi->sb_n_free_dnodes--;
+ }
+}
+
+static void hpfs_claim_dirband_free(struct super_block *s, secno sec)
+{
+ struct hpfs_sb_info *sbi = hpfs_sb(s);
+ if (sbi->sb_n_free_dnodes != (unsigned)-1) {
+ if (unlikely(sbi->sb_n_free_dnodes >= sbi->sb_dirband_size / 4)) {
+ hpfs_error(s, "dirband free count overflow, freeing sector %08x", sec);
+ sbi->sb_n_free_dnodes = -1;
+ return;
+ }
+ sbi->sb_n_free_dnodes++;
+ }
+}
+
/*
* Check if a sector is allocated in bitmap
* This is really slow. Turned on only if chk==2
@@ -203,9 +255,15 @@ secno hpfs_alloc_sector(struct super_block *s, secno near, unsigned n, int forwa
}
sec = 0;
ret:
+ if (sec) {
+ i = 0;
+ do
+ hpfs_claim_alloc(s, sec + i);
+ while (unlikely(++i < n));
+ }
if (sec && f_p) {
for (i = 0; i < forward; i++) {
- if (!hpfs_alloc_if_possible(s, sec + i + 1)) {
+ if (!hpfs_alloc_if_possible(s, sec + n + i)) {
hpfs_error(s, "Prealloc doesn't work! Wanted %d, allocated at %08x, can't allocate %d", forward, sec, i);
sec = 0;
break;
@@ -228,6 +286,7 @@ static secno alloc_in_dirband(struct super_block *s, secno near)
nr >>= 2;
sec = alloc_in_bmp(s, (~0x3fff) | nr, 1, 0);
if (!sec) return 0;
+ hpfs_claim_dirband_alloc(s, sec);
return ((sec & 0x3fff) << 2) + sbi->sb_dirband_start;
}

@@ -242,6 +301,7 @@ int hpfs_alloc_if_possible(struct super_block *s, secno sec)
bmp[(sec & 0x3fff) >> 5] &= cpu_to_le32(~(1 << (sec & 0x1f)));
hpfs_mark_4buffers_dirty(&qbh);
hpfs_brelse4(&qbh);
+ hpfs_claim_alloc(s, sec);
return 1;
}
hpfs_brelse4(&qbh);
@@ -275,6 +335,7 @@ void hpfs_free_sectors(struct super_block *s, secno sec, unsigned n)
return;
}
bmp[(sec & 0x3fff) >> 5] |= cpu_to_le32(1 << (sec & 0x1f));
+ hpfs_claim_free(s, sec);
if (!--n) {
hpfs_mark_4buffers_dirty(&qbh);
hpfs_brelse4(&qbh);
@@ -359,6 +420,7 @@ void hpfs_free_dnode(struct super_block *s, dnode_secno dno)
bmp[ssec >> 5] |= cpu_to_le32(1 << (ssec & 0x1f));
hpfs_mark_4buffers_dirty(&qbh);
hpfs_brelse4(&qbh);
+ hpfs_claim_dirband_free(s, dno);
}
}

@@ -366,7 +428,7 @@ struct dnode *hpfs_alloc_dnode(struct super_block *s, secno near,
dnode_secno *dno, struct quad_buffer_head *qbh)
{
struct dnode *d;
- if (hpfs_count_one_bitmap(s, hpfs_sb(s)->sb_dmap) > FREE_DNODES_ADD) {
+ if (hpfs_get_free_dnodes(s) > FREE_DNODES_ADD) {
if (!(*dno = alloc_in_dirband(s, near)))
if (!(*dno = hpfs_alloc_sector(s, near, 4, 0))) return NULL;
} else {
diff --git a/fs/hpfs/dir.c b/fs/hpfs/dir.c
index 2fa0089..46549c7 100644
--- a/fs/hpfs/dir.c
+++ b/fs/hpfs/dir.c
@@ -33,25 +33,27 @@ static loff_t hpfs_dir_lseek(struct file *filp, loff_t off, int whence)
if (whence == SEEK_DATA || whence == SEEK_HOLE)
return -EINVAL;

+ mutex_lock(&i->i_mutex);
hpfs_lock(s);

/*printk("dir lseek\n");*/
if (new_off == 0 || new_off == 1 || new_off == 11 || new_off == 12 || new_off == 13) goto ok;
- mutex_lock(&i->i_mutex);
pos = ((loff_t) hpfs_de_as_down_as_possible(s, hpfs_inode->i_dno) << 4) + 1;
while (pos != new_off) {
if (map_pos_dirent(i, &pos, &qbh)) hpfs_brelse4(&qbh);
else goto fail;
if (pos == 12) goto fail;
}
- mutex_unlock(&i->i_mutex);
+ hpfs_add_pos(i, &filp->f_pos);
ok:
+ filp->f_pos = new_off;
hpfs_unlock(s);
- return filp->f_pos = new_off;
-fail:
mutex_unlock(&i->i_mutex);
+ return new_off;
+fail:
/*printk("illegal lseek: %016llx\n", new_off);*/
hpfs_unlock(s);
+ mutex_unlock(&i->i_mutex);
return -ESPIPE;
}

diff --git a/fs/hpfs/hpfs_fn.h b/fs/hpfs/hpfs_fn.h
index de94617..f1f2ca7 100644
--- a/fs/hpfs/hpfs_fn.h
+++ b/fs/hpfs/hpfs_fn.h
@@ -314,7 +314,7 @@ static inline struct hpfs_sb_info *hpfs_sb(struct super_block *sb)
__printf(2, 3)
void hpfs_error(struct super_block *, const char *, ...);
int hpfs_stop_cycles(struct super_block *, int, int *, int *, char *);
-unsigned hpfs_count_one_bitmap(struct super_block *, secno);
+unsigned hpfs_get_free_dnodes(struct super_block *);

/*
* local time (HPFS) to GMT (Unix)
diff --git a/fs/hpfs/super.c b/fs/hpfs/super.c
index f760c15..b03e766 100644
--- a/fs/hpfs/super.c
+++ b/fs/hpfs/super.c
@@ -115,7 +115,7 @@ static void hpfs_put_super(struct super_block *s)
kfree(sbi);
}

-unsigned hpfs_count_one_bitmap(struct super_block *s, secno secno)
+static unsigned hpfs_count_one_bitmap(struct super_block *s, secno secno)
{
struct quad_buffer_head qbh;
unsigned long *bits;
@@ -123,7 +123,7 @@ unsigned hpfs_count_one_bitmap(struct super_block *s, secno secno)

bits = hpfs_map_4sectors(s, secno, &qbh, 4);
if (!bits)
- return 0;
+ return (unsigned)-1;
count = bitmap_weight(bits, 2048 * BITS_PER_BYTE);
hpfs_brelse4(&qbh);
return count;
@@ -134,29 +134,45 @@ static unsigned count_bitmaps(struct super_block *s)
unsigned n, count, n_bands;
n_bands = (hpfs_sb(s)->sb_fs_size + 0x3fff) >> 14;
count = 0;
- for (n = 0; n < n_bands; n++)
- count += hpfs_count_one_bitmap(s, le32_to_cpu(hpfs_sb(s)->sb_bmp_dir[n]));
+ for (n = 0; n < n_bands; n++) {
+ unsigned c;
+ c = hpfs_count_one_bitmap(s, le32_to_cpu(hpfs_sb(s)->sb_bmp_dir[n]));
+ if (c != (unsigned)-1)
+ count += c;
+ }
return count;
}

+unsigned hpfs_get_free_dnodes(struct super_block *s)
+{
+ struct hpfs_sb_info *sbi = hpfs_sb(s);
+ if (sbi->sb_n_free_dnodes == (unsigned)-1) {
+ unsigned c = hpfs_count_one_bitmap(s, sbi->sb_dmap);
+ if (c == (unsigned)-1)
+ return 0;
+ sbi->sb_n_free_dnodes = c;
+ }
+ return sbi->sb_n_free_dnodes;
+}
+
static int hpfs_statfs(struct dentry *dentry, struct kstatfs *buf)
{
struct super_block *s = dentry->d_sb;
struct hpfs_sb_info *sbi = hpfs_sb(s);
u64 id = huge_encode_dev(s->s_bdev->bd_dev);
+
hpfs_lock(s);

- /*if (sbi->sb_n_free == -1) {*/
+ if (sbi->sb_n_free == (unsigned)-1)
sbi->sb_n_free = count_bitmaps(s);
- sbi->sb_n_free_dnodes = hpfs_count_one_bitmap(s, sbi->sb_dmap);
- /*}*/
+
buf->f_type = s->s_magic;
buf->f_bsize = 512;
buf->f_blocks = sbi->sb_fs_size;
buf->f_bfree = sbi->sb_n_free;
buf->f_bavail = sbi->sb_n_free;
buf->f_files = sbi->sb_dirband_size / 4;
- buf->f_ffree = sbi->sb_n_free_dnodes;
+ buf->f_ffree = hpfs_get_free_dnodes(s);
buf->f_fsid.val[0] = (u32)id;
buf->f_fsid.val[1] = (u32)(id >> 32);
buf->f_namelen = 254;
diff --git a/fs/lockd/svclock.c b/fs/lockd/svclock.c
index cd8703d..cb7b186 100644
--- a/fs/lockd/svclock.c
+++ b/fs/lockd/svclock.c
@@ -741,6 +741,7 @@ nlmsvc_grant_blocked(struct nlm_block *block)
struct nlm_file *file = block->b_file;
struct nlm_lock *lock = &block->b_call->a_args.lock;
int error;
+ loff_t fl_start, fl_end;

dprintk("lockd: grant blocked lock %p\n", block);

@@ -758,9 +759,16 @@ nlmsvc_grant_blocked(struct nlm_block *block)
}

/* Try the lock operation again */
+ /* vfs_lock_file() can mangle fl_start and fl_end, but we need
+ * them unchanged for the GRANT_MSG
+ */
lock->fl.fl_flags |= FL_SLEEP;
+ fl_start = lock->fl.fl_start;
+ fl_end = lock->fl.fl_end;
error = vfs_lock_file(file->f_file, F_SETLK, &lock->fl, NULL);
lock->fl.fl_flags &= ~FL_SLEEP;
+ lock->fl.fl_start = fl_start;
+ lock->fl.fl_end = fl_end;

switch (error) {
case 0:
diff --git a/fs/nfs/blocklayout/extents.c b/fs/nfs/blocklayout/extents.c
index 4e2ee99..bb15ccc 100644
--- a/fs/nfs/blocklayout/extents.c
+++ b/fs/nfs/blocklayout/extents.c
@@ -44,7 +44,7 @@
static inline sector_t normalize(sector_t s, int base)
{
sector_t tmp = s; /* Since do_div modifies its argument */
- return s - do_div(tmp, base);
+ return s - sector_div(tmp, base);
}

static inline sector_t normalize_up(sector_t s, int base)
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 3d02931..5aea30a 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -6197,7 +6197,7 @@ nfs41_proc_secinfo_no_name(struct nfs_server *server, struct nfs_fh *fhandle,
switch (err) {
case 0:
case -NFS4ERR_WRONGSEC:
- case -NFS4ERR_NOTSUPP:
+ case -ENOTSUPP:
goto out;
default:
err = nfs4_handle_exception(server, err, &exception);
@@ -6229,7 +6229,7 @@ nfs41_find_root_sec(struct nfs_server *server, struct nfs_fh *fhandle,
* Fall back on "guess and check" method if
* the server doesn't support SECINFO_NO_NAME
*/
- if (err == -NFS4ERR_WRONGSEC || err == -NFS4ERR_NOTSUPP) {
+ if (err == -NFS4ERR_WRONGSEC || err == -ENOTSUPP) {
err = nfs4_find_root_sec(server, fhandle, info);
goto out_freepage;
}
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index 00818c8..4479f66 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -3056,7 +3056,8 @@ out_overflow:
return -EIO;
}

-static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected)
+static bool __decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected,
+ int *nfs_retval)
{
__be32 *p;
uint32_t opnum;
@@ -3066,19 +3067,32 @@ static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected)
if (unlikely(!p))
goto out_overflow;
opnum = be32_to_cpup(p++);
- if (opnum != expected) {
- dprintk("nfs: Server returned operation"
- " %d but we issued a request for %d\n",
- opnum, expected);
- return -EIO;
- }
+ if (unlikely(opnum != expected))
+ goto out_bad_operation;
nfserr = be32_to_cpup(p);
- if (nfserr != NFS_OK)
- return nfs4_stat_to_errno(nfserr);
- return 0;
+ if (nfserr == NFS_OK)
+ *nfs_retval = 0;
+ else
+ *nfs_retval = nfs4_stat_to_errno(nfserr);
+ return true;
+out_bad_operation:
+ dprintk("nfs: Server returned operation"
+ " %d but we issued a request for %d\n",
+ opnum, expected);
+ *nfs_retval = -EREMOTEIO;
+ return false;
out_overflow:
print_overflow_msg(__func__, xdr);
- return -EIO;
+ *nfs_retval = -EIO;
+ return false;
+}
+
+static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected)
+{
+ int retval;
+
+ __decode_op_hdr(xdr, expected, &retval);
+ return retval;
}

/* Dummy routine */
@@ -4744,11 +4758,12 @@ static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res)
uint32_t savewords, bmlen, i;
int status;

- status = decode_op_hdr(xdr, OP_OPEN);
- if (status != -EIO)
- nfs_increment_open_seqid(status, res->seqid);
- if (!status)
- status = decode_stateid(xdr, &res->stateid);
+ if (!__decode_op_hdr(xdr, OP_OPEN, &status))
+ return status;
+ nfs_increment_open_seqid(status, res->seqid);
+ if (status)
+ return status;
+ status = decode_stateid(xdr, &res->stateid);
if (unlikely(status))
return status;

diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index 1c7d45e..d20d64c 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -2389,8 +2389,8 @@ out_dio:

if (((file->f_flags & O_DSYNC) && !direct_io) || IS_SYNC(inode) ||
((file->f_flags & O_DIRECT) && !direct_io)) {
- ret = filemap_fdatawrite_range(file->f_mapping, pos,
- pos + count - 1);
+ ret = filemap_fdatawrite_range(file->f_mapping, *ppos,
+ *ppos + count - 1);
if (ret < 0)
written = ret;

@@ -2403,8 +2403,8 @@ out_dio:
}

if (!ret)
- ret = filemap_fdatawait_range(file->f_mapping, pos,
- pos + count - 1);
+ ret = filemap_fdatawait_range(file->f_mapping, *ppos,
+ *ppos + count - 1);
}

/*
diff --git a/fs/ocfs2/quota_global.c b/fs/ocfs2/quota_global.c
index 92fcd57..a40e5ce 100644
--- a/fs/ocfs2/quota_global.c
+++ b/fs/ocfs2/quota_global.c
@@ -712,6 +712,12 @@ static int ocfs2_release_dquot(struct dquot *dquot)
*/
if (status < 0)
mlog_errno(status);
+ /*
+ * Clear dq_off so that we search for the structure in quota file next
+ * time we acquire it. The structure might be deleted and reallocated
+ * elsewhere by another node while our dquot structure is on freelist.
+ */
+ dquot->dq_off = 0;
clear_bit(DQ_ACTIVE_B, &dquot->dq_flags);
out_trans:
ocfs2_commit_trans(osb, handle);
@@ -750,16 +756,17 @@ static int ocfs2_acquire_dquot(struct dquot *dquot)
status = ocfs2_lock_global_qf(info, 1);
if (status < 0)
goto out;
- if (!test_bit(DQ_READ_B, &dquot->dq_flags)) {
- status = ocfs2_qinfo_lock(info, 0);
- if (status < 0)
- goto out_dq;
- status = qtree_read_dquot(&info->dqi_gi, dquot);
- ocfs2_qinfo_unlock(info, 0);
- if (status < 0)
- goto out_dq;
- }
- set_bit(DQ_READ_B, &dquot->dq_flags);
+ status = ocfs2_qinfo_lock(info, 0);
+ if (status < 0)
+ goto out_dq;
+ /*
+ * We always want to read dquot structure from disk because we don't
+ * know what happened with it while it was on freelist.
+ */
+ status = qtree_read_dquot(&info->dqi_gi, dquot);
+ ocfs2_qinfo_unlock(info, 0);
+ if (status < 0)
+ goto out_dq;

OCFS2_DQUOT(dquot)->dq_use_count++;
OCFS2_DQUOT(dquot)->dq_origspace = dquot->dq_dqb.dqb_curspace;
diff --git a/fs/ocfs2/quota_local.c b/fs/ocfs2/quota_local.c
index f100bf7..b6cfcf2 100644
--- a/fs/ocfs2/quota_local.c
+++ b/fs/ocfs2/quota_local.c
@@ -1300,10 +1300,6 @@ int ocfs2_local_release_dquot(handle_t *handle, struct dquot *dquot)
ocfs2_journal_dirty(handle, od->dq_chunk->qc_headerbh);

out:
- /* Clear the read bit so that next time someone uses this
- * dquot he reads fresh info from disk and allocates local
- * dquot structure */
- clear_bit(DQ_READ_B, &dquot->dq_flags);
return status;
}

diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
index 5b572c8..3d5d717 100644
--- a/fs/quota/dquot.c
+++ b/fs/quota/dquot.c
@@ -580,9 +580,17 @@ int dquot_scan_active(struct super_block *sb,
dqstats_inc(DQST_LOOKUPS);
dqput(old_dquot);
old_dquot = dquot;
- ret = fn(dquot, priv);
- if (ret < 0)
- goto out;
+ /*
+ * ->release_dquot() can be racing with us. Our reference
+ * protects us from new calls to it so just wait for any
+ * outstanding call and recheck the DQ_ACTIVE_B after that.
+ */
+ wait_on_dquot(dquot);
+ if (test_bit(DQ_ACTIVE_B, &dquot->dq_flags)) {
+ ret = fn(dquot, priv);
+ if (ret < 0)
+ goto out;
+ }
spin_lock(&dq_list_lock);
/* We are safe to continue now because our dquot could not
* be moved out of the inuse list while we hold the reference */
diff --git a/fs/splice.c b/fs/splice.c
index 58ab918..714471d 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -554,6 +554,24 @@ static const struct pipe_buf_operations default_pipe_buf_ops = {
.get = generic_pipe_buf_get,
};

+static int generic_pipe_buf_nosteal(struct pipe_inode_info *pipe,
+ struct pipe_buffer *buf)
+{
+ return 1;
+}
+
+/* Pipe buffer operations for a socket and similar. */
+const struct pipe_buf_operations nosteal_pipe_buf_ops = {
+ .can_merge = 0,
+ .map = generic_pipe_buf_map,
+ .unmap = generic_pipe_buf_unmap,
+ .confirm = generic_pipe_buf_confirm,
+ .release = generic_pipe_buf_release,
+ .steal = generic_pipe_buf_nosteal,
+ .get = generic_pipe_buf_get,
+};
+EXPORT_SYMBOL(nosteal_pipe_buf_ops);
+
static ssize_t kernel_readv(struct file *file, const struct iovec *vec,
unsigned long vlen, loff_t offset)
{
diff --git a/include/linux/compiler-gcc4.h b/include/linux/compiler-gcc4.h
index 643d6c4..e2a360a 100644
--- a/include/linux/compiler-gcc4.h
+++ b/include/linux/compiler-gcc4.h
@@ -39,11 +39,7 @@
*
* (asm goto is automatically volatile - the naming reflects this.)
*/
-#if GCC_VERSION <= 40801
-# define asm_volatile_goto(x...) do { asm goto(x); asm (""); } while (0)
-#else
-# define asm_volatile_goto(x...) do { asm goto(x); } while (0)
-#endif
+#define asm_volatile_goto(x...) do { asm goto(x); asm (""); } while (0)

#if __GNUC_MINOR__ >= 5
/*
diff --git a/include/linux/jiffies.h b/include/linux/jiffies.h
index 265e2c3..f5df3dc 100644
--- a/include/linux/jiffies.h
+++ b/include/linux/jiffies.h
@@ -106,13 +106,13 @@ static inline u64 get_jiffies_64(void)
#define time_after(a,b) \
(typecheck(unsigned long, a) && \
typecheck(unsigned long, b) && \
- ((long)(b) - (long)(a) < 0))
+ ((long)((b) - (a)) < 0))
#define time_before(a,b) time_after(b,a)

#define time_after_eq(a,b) \
(typecheck(unsigned long, a) && \
typecheck(unsigned long, b) && \
- ((long)(a) - (long)(b) >= 0))
+ ((long)((a) - (b)) >= 0))
#define time_before_eq(a,b) time_after_eq(b,a)

/*
@@ -135,13 +135,13 @@ static inline u64 get_jiffies_64(void)
#define time_after64(a,b) \
(typecheck(__u64, a) && \
typecheck(__u64, b) && \
- ((__s64)(b) - (__s64)(a) < 0))
+ ((__s64)((b) - (a)) < 0))
#define time_before64(a,b) time_after64(b,a)

#define time_after_eq64(a,b) \
(typecheck(__u64, a) && \
typecheck(__u64, b) && \
- ((__s64)(a) - (__s64)(b) >= 0))
+ ((__s64)((a) - (b)) >= 0))
#define time_before_eq64(a,b) time_after_eq64(b,a)

/*
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 62467ca..b1fcdba 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -393,6 +393,8 @@ enum {
ATA_HORKAGE_BROKEN_FPDMA_AA = (1 << 15), /* skip AA */
ATA_HORKAGE_DUMP_ID = (1 << 16), /* dump IDENTIFY data */
ATA_HORKAGE_MAX_SEC_LBA48 = (1 << 17), /* Set max sects to 65535 */
+ ATA_HORKAGE_NOLPM = (1 << 20), /* don't use LPM */
+ ATA_HORKAGE_WD_BROKEN_LPM = (1 << 21), /* some WDs have broken LPM */

/* DMA mask for user DMA control: User visible values; DO NOT
renumber */
diff --git a/include/linux/pipe_fs_i.h b/include/linux/pipe_fs_i.h
index 0072a53..8778c26 100644
--- a/include/linux/pipe_fs_i.h
+++ b/include/linux/pipe_fs_i.h
@@ -160,6 +160,8 @@ int generic_pipe_buf_confirm(struct pipe_inode_info *, struct pipe_buffer *);
int generic_pipe_buf_steal(struct pipe_inode_info *, struct pipe_buffer *);
void generic_pipe_buf_release(struct pipe_inode_info *, struct pipe_buffer *);

+extern const struct pipe_buf_operations nosteal_pipe_buf_ops;
+
/* for F_SETPIPE_SZ and F_GETPIPE_SZ */
long pipe_fcntl(struct file *, unsigned int, unsigned long arg);
struct pipe_inode_info *get_pipe_info(struct file *file);
diff --git a/include/linux/tracepoint.h b/include/linux/tracepoint.h
index df0a779..f3680aa 100644
--- a/include/linux/tracepoint.h
+++ b/include/linux/tracepoint.h
@@ -60,6 +60,12 @@ struct tp_module {
unsigned int num_tracepoints;
struct tracepoint * const *tracepoints_ptrs;
};
+bool trace_module_has_bad_taint(struct module *mod);
+#else
+static inline bool trace_module_has_bad_taint(struct module *mod)
+{
+ return false;
+}
#endif /* CONFIG_MODULES */

struct tracepoint_iter {
diff --git a/include/scsi/osd_ore.h b/include/scsi/osd_ore.h
index f05fa82..47b458c 100644
--- a/include/scsi/osd_ore.h
+++ b/include/scsi/osd_ore.h
@@ -101,6 +101,7 @@ struct ore_striping_info {
unsigned unit_off;
unsigned cur_pg;
unsigned cur_comp;
+ unsigned maxdevUnits;
};

struct ore_io_state;
diff --git a/include/xen/Kbuild b/include/xen/Kbuild
index 84ad8f0..563161a 100644
--- a/include/xen/Kbuild
+++ b/include/xen/Kbuild
@@ -1,2 +1,4 @@
header-y += evtchn.h
+header-y += gntalloc.h
+header-y += gntdev.h
header-y += privcmd.h
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index 2a1ffb7..93fc15e 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -2785,9 +2785,14 @@ static void cgroup_enable_task_cg_lists(void)
* We should check if the process is exiting, otherwise
* it will race with cgroup_exit() in that the list
* entry won't be deleted though the process has exited.
+ * Do it while holding siglock so that we don't end up
+ * racing against cgroup_exit().
*/
+ spin_lock_irq(&p->sighand->siglock);
if (!(p->flags & PF_EXITING) && list_empty(&p->cg_list))
list_add(&p->cg_list, &p->cgroups->tasks);
+ spin_unlock_irq(&p->sighand->siglock);
+
task_unlock(p);
} while_each_thread(g, p);
write_unlock(&css_set_lock);
diff --git a/kernel/cpuset.c b/kernel/cpuset.c
index 57eb98d..1e2c5f0 100644
--- a/kernel/cpuset.c
+++ b/kernel/cpuset.c
@@ -2366,9 +2366,9 @@ int __cpuset_node_allowed_softwall(int node, gfp_t gfp_mask)

task_lock(current);
cs = nearest_hardwall_ancestor(task_cs(current));
+ allowed = node_isset(node, cs->mems_allowed);
task_unlock(current);

- allowed = node_isset(node, cs->mems_allowed);
mutex_unlock(&callback_mutex);
return allowed;
}
diff --git a/kernel/events/core.c b/kernel/events/core.c
index 83d5621..b15b4f7 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -7101,14 +7101,14 @@ static void perf_pmu_rotate_stop(struct pmu *pmu)
static void __perf_event_exit_context(void *__info)
{
struct perf_event_context *ctx = __info;
- struct perf_event *event, *tmp;
+ struct perf_event *event;

perf_pmu_rotate_stop(ctx->pmu);

- list_for_each_entry_safe(event, tmp, &ctx->pinned_groups, group_entry)
- __perf_remove_from_context(event);
- list_for_each_entry_safe(event, tmp, &ctx->flexible_groups, group_entry)
+ rcu_read_lock();
+ list_for_each_entry_rcu(event, &ctx->event_list, event_entry)
__perf_remove_from_context(event);
+ rcu_read_unlock();
}

static void perf_event_exit_cpu_context(int cpu)
@@ -7132,11 +7132,11 @@ static void perf_event_exit_cpu(int cpu)
{
struct swevent_htable *swhash = &per_cpu(swevent_htable, cpu);

+ perf_event_exit_cpu_context(cpu);
+
mutex_lock(&swhash->hlist_mutex);
swevent_hlist_release(swhash);
mutex_unlock(&swhash->hlist_mutex);
-
- perf_event_exit_cpu_context(cpu);
}
#else
static inline void perf_event_exit_cpu(int cpu) { }
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index 52bdd58..4775229 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -819,7 +819,7 @@ static int irq_thread(void *data)

wake = atomic_dec_and_test(&desc->threads_active);

- if (wake && waitqueue_active(&desc->wait_for_threads))
+ if (wake)
wake_up(&desc->wait_for_threads);
}

diff --git a/kernel/printk.c b/kernel/printk.c
index 16688ec..8fac434 100644
--- a/kernel/printk.c
+++ b/kernel/printk.c
@@ -1165,7 +1165,6 @@ static int __cpuinit console_cpu_notify(struct notifier_block *self,
switch (action) {
case CPU_ONLINE:
case CPU_DEAD:
- case CPU_DYING:
case CPU_DOWN_FAILED:
case CPU_UP_CANCELED:
console_lock();
diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c
index 37f3f39..4c6dae1 100644
--- a/kernel/sched_fair.c
+++ b/kernel/sched_fair.c
@@ -4953,15 +4953,15 @@ static void switched_from_fair(struct rq *rq, struct task_struct *p)
struct cfs_rq *cfs_rq = cfs_rq_of(se);

/*
- * Ensure the task's vruntime is normalized, so that when its
+ * Ensure the task's vruntime is normalized, so that when it's
* switched back to the fair class the enqueue_entity(.flags=0) will
* do the right thing.
*
- * If it was on_rq, then the dequeue_entity(.flags=0) will already
- * have normalized the vruntime, if it was !on_rq, then only when
+ * If it's on_rq, then the dequeue_entity(.flags=0) will already
+ * have normalized the vruntime, if it's !on_rq, then only when
* the task is sleeping will it still have non-normalized vruntime.
*/
- if (!se->on_rq && p->state != TASK_RUNNING) {
+ if (!p->on_rq && p->state != TASK_RUNNING) {
/*
* Fix up our vruntime so that the current sleep doesn't
* cause 'unlimited' sleep bonus.
diff --git a/kernel/time/jiffies.c b/kernel/time/jiffies.c
index a470154..955560e 100644
--- a/kernel/time/jiffies.c
+++ b/kernel/time/jiffies.c
@@ -51,7 +51,13 @@
* HZ shrinks, so values greater than 8 overflow 32bits when
* HZ=100.
*/
+#if HZ < 34
+#define JIFFIES_SHIFT 6
+#elif HZ < 67
+#define JIFFIES_SHIFT 7
+#else
#define JIFFIES_SHIFT 8
+#endif

static cycle_t jiffies_read(struct clocksource *cs)
{
diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index cb7f33e..068c092 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -1161,7 +1161,7 @@ void get_monotonic_boottime(struct timespec *ts)
} while (read_seqretry(&xtime_lock, seq));

set_normalized_timespec(ts, ts->tv_sec + tomono.tv_sec + sleep.tv_sec,
- ts->tv_nsec + tomono.tv_nsec + sleep.tv_nsec + nsecs);
+ (s64)ts->tv_nsec + tomono.tv_nsec + sleep.tv_nsec + nsecs);
}
EXPORT_SYMBOL_GPL(get_monotonic_boottime);

diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index cf8b439..a65fa36 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -190,6 +190,12 @@ static void update_global_ops(void)
global_ops.func = func;
}

+#ifdef CONFIG_FUNCTION_GRAPH_TRACER
+static void update_function_graph_func(void);
+#else
+static inline void update_function_graph_func(void) { }
+#endif
+
static void update_ftrace_function(void)
{
ftrace_func_t func;
@@ -237,6 +243,8 @@ static int remove_ftrace_ops(struct ftrace_ops **list, struct ftrace_ops *ops)
{
struct ftrace_ops **p;

+ update_function_graph_func();
+
/*
* If we are removing the last function, then simply point
* to the ftrace_stub.
@@ -283,6 +291,17 @@ static int __register_ftrace_function(struct ftrace_ops *ops)
return 0;
}

+static void ftrace_sync(struct work_struct *work)
+{
+ /*
+ * This function is just a stub to implement a hard force
+ * of synchronize_sched(). This requires synchronizing
+ * tasks even in userspace and idle.
+ *
+ * Yes, function tracing is rude.
+ */
+}
+
static int __unregister_ftrace_function(struct ftrace_ops *ops)
{
int ret;
@@ -308,13 +327,6 @@ static int __unregister_ftrace_function(struct ftrace_ops *ops)
if (ftrace_enabled)
update_ftrace_function();

- /*
- * Dynamic ops may be freed, we must make sure that all
- * callers are done before leaving this function.
- */
- if (ops->flags & FTRACE_OPS_FL_DYNAMIC)
- synchronize_sched();
-
return 0;
}

@@ -1775,6 +1787,24 @@ static int ftrace_shutdown(struct ftrace_ops *ops, int command)
return 0;

ftrace_run_update_code(command);
+
+ /*
+ * Dynamic ops may be freed, we must make sure that all
+ * callers are done before leaving this function.
+ * The same goes for freeing the per_cpu data of the control
+ * ops.
+ *
+ * Again, normal synchronize_sched() is not good enough.
+ * We need to do a hard force of sched synchronization.
+ * This is because we use preempt_disable() to do RCU, but
+ * the function tracers can be called where RCU is not watching
+ * (like before user_exit()). We can not rely on the RCU
+ * infrastructure to do the synchronization, thus we must do it
+ * ourselves.
+ */
+ if (ops->flags & (FTRACE_OPS_FL_DYNAMIC))
+ schedule_on_each_cpu(ftrace_sync);
+
return 0;
}

@@ -4045,6 +4075,7 @@ int ftrace_graph_entry_stub(struct ftrace_graph_ent *trace)
trace_func_graph_ret_t ftrace_graph_return =
(trace_func_graph_ret_t)ftrace_stub;
trace_func_graph_ent_t ftrace_graph_entry = ftrace_graph_entry_stub;
+static trace_func_graph_ent_t __ftrace_graph_entry = ftrace_graph_entry_stub;

/* Try to assign a return stack array on FTRACE_RETSTACK_ALLOC_SIZE tasks. */
static int alloc_retstack_tasklist(struct ftrace_ret_stack **ret_stack_list)
@@ -4185,6 +4216,30 @@ static struct ftrace_ops fgraph_ops __read_mostly = {
.flags = FTRACE_OPS_FL_GLOBAL,
};

+static int ftrace_graph_entry_test(struct ftrace_graph_ent *trace)
+{
+ if (!ftrace_ops_test(&global_ops, trace->func))
+ return 0;
+ return __ftrace_graph_entry(trace);
+}
+
+/*
+ * The function graph tracer should only trace the functions defined
+ * by set_ftrace_filter and set_ftrace_notrace. If another function
+ * tracer ops is registered, the graph tracer requires testing the
+ * function against the global ops, and not just trace any function
+ * that any ftrace_ops registered.
+ */
+static void update_function_graph_func(void)
+{
+ if (ftrace_ops_list == &ftrace_list_end ||
+ (ftrace_ops_list == &global_ops &&
+ global_ops.next == &ftrace_list_end))
+ ftrace_graph_entry = __ftrace_graph_entry;
+ else
+ ftrace_graph_entry = ftrace_graph_entry_test;
+}
+
int register_ftrace_graph(trace_func_graph_ret_t retfunc,
trace_func_graph_ent_t entryfunc)
{
@@ -4209,7 +4264,16 @@ int register_ftrace_graph(trace_func_graph_ret_t retfunc,
}

ftrace_graph_return = retfunc;
- ftrace_graph_entry = entryfunc;
+
+ /*
+ * Update the indirect function to the entryfunc, and the
+ * function that gets called to the entry_test first. Then
+ * call the update fgraph entry function to determine if
+ * the entryfunc should be called directly or not.
+ */
+ __ftrace_graph_entry = entryfunc;
+ ftrace_graph_entry = ftrace_graph_entry_test;
+ update_function_graph_func();

ret = ftrace_startup(&fgraph_ops, FTRACE_START_FUNC_RET);

@@ -4228,6 +4292,7 @@ void unregister_ftrace_graph(void)
ftrace_graph_active--;
ftrace_graph_return = (trace_func_graph_ret_t)ftrace_stub;
ftrace_graph_entry = ftrace_graph_entry_stub;
+ __ftrace_graph_entry = ftrace_graph_entry_stub;
ftrace_shutdown(&fgraph_ops, FTRACE_STOP_FUNC_RET);
unregister_pm_notifier(&ftrace_suspend_notifier);
unregister_trace_sched_switch(ftrace_graph_probe_sched_switch, NULL);
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index 6fdc629..648f25a 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -2040,6 +2040,13 @@ __rb_reserve_next(struct ring_buffer_per_cpu *cpu_buffer,
write &= RB_WRITE_MASK;
tail = write - length;

+ /*
+ * If this is the first commit on the page, then it has the same
+ * timestamp as the page itself.
+ */
+ if (!tail)
+ delta = 0;
+
/* See if we shot pass the end of this buffer page */
if (unlikely(write > BUF_PAGE_SIZE))
return rb_move_tail(cpu_buffer, length, tail,
diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
index c212a7f..875fed4 100644
--- a/kernel/trace/trace_events.c
+++ b/kernel/trace/trace_events.c
@@ -1345,6 +1345,16 @@ static void trace_module_add_events(struct module *mod)
struct ftrace_module_file_ops *file_ops = NULL;
struct ftrace_event_call **call, **start, **end;

+ if (!mod->num_trace_events)
+ return;
+
+ /* Don't add infrastructure for mods without tracepoints */
+ if (trace_module_has_bad_taint(mod)) {
+ pr_err("%s: module has bad taint, not creating trace events\n",
+ mod->name);
+ return;
+ }
+
start = mod->trace_events;
end = mod->trace_events + mod->num_trace_events;

diff --git a/kernel/tracepoint.c b/kernel/tracepoint.c
index f1539de..41b25a0 100644
--- a/kernel/tracepoint.c
+++ b/kernel/tracepoint.c
@@ -628,6 +628,11 @@ void tracepoint_iter_reset(struct tracepoint_iter *iter)
EXPORT_SYMBOL_GPL(tracepoint_iter_reset);

#ifdef CONFIG_MODULES
+bool trace_module_has_bad_taint(struct module *mod)
+{
+ return mod->taints & ~((1 << TAINT_OOT_MODULE) | (1 << TAINT_CRAP));
+}
+
static int tracepoint_module_coming(struct module *mod)
{
struct tp_module *tp_mod, *iter;
@@ -638,7 +643,7 @@ static int tracepoint_module_coming(struct module *mod)
* module headers (for forced load), to make sure we don't cause a crash.
* Staging and out-of-tree GPL modules are fine.
*/
- if (mod->taints & ~((1 << TAINT_OOT_MODULE) | (1 << TAINT_CRAP)))
+ if (trace_module_has_bad_taint(mod))
return 0;
mutex_lock(&tracepoints_mutex);
tp_mod = kmalloc(sizeof(struct tp_module), GFP_KERNEL);
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 0bc9ff0..563820c 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -1474,12 +1474,19 @@ static void destroy_worker(struct worker *worker)
if (worker->flags & WORKER_IDLE)
gcwq->nr_idle--;

+ /*
+ * Once WORKER_DIE is set, the kworker may destroy itself at any
+ * point. Pin to ensure the task stays until we're done with it.
+ */
+ get_task_struct(worker->task);
+
list_del_init(&worker->entry);
worker->flags |= WORKER_DIE;

spin_unlock_irq(&gcwq->lock);

kthread_stop(worker->task);
+ put_task_struct(worker->task);
kfree(worker);

spin_lock_irq(&gcwq->lock);
diff --git a/lib/Makefile b/lib/Makefile
index a4da283..c06efca 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -40,6 +40,7 @@ obj-$(CONFIG_DEBUG_SPINLOCK) += spinlock_debug.o
lib-$(CONFIG_RWSEM_GENERIC_SPINLOCK) += rwsem-spinlock.o
lib-$(CONFIG_RWSEM_XCHGADD_ALGORITHM) += rwsem.o

+GCOV_PROFILE_hweight.o := n
CFLAGS_hweight.o = $(subst $(quote),,$(CONFIG_ARCH_HWEIGHT_CFLAGS))
obj-$(CONFIG_GENERIC_HWEIGHT) += hweight.o

diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index 069b64e..4dda948 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -213,7 +213,7 @@ unsigned int oom_badness(struct task_struct *p, struct mem_cgroup *mem,
* implementation used by LSMs.
*/
if (has_capability_noaudit(p, CAP_SYS_ADMIN))
- points -= 30;
+ points -= (points * 3) / 100;

/*
* /proc/pid/oom_score_adj ranges from -1000 to +1000 such that it may
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index ea3f83b..b5cd796 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -1776,11 +1776,12 @@ int __set_page_dirty_nobuffers(struct page *page)
if (!TestSetPageDirty(page)) {
struct address_space *mapping = page_mapping(page);
struct address_space *mapping2;
+ unsigned long flags;

if (!mapping)
return 1;

- spin_lock_irq(&mapping->tree_lock);
+ spin_lock_irqsave(&mapping->tree_lock, flags);
mapping2 = page_mapping(page);
if (mapping2) { /* Race with truncate? */
BUG_ON(mapping2 != mapping);
@@ -1789,7 +1790,7 @@ int __set_page_dirty_nobuffers(struct page *page)
radix_tree_tag_set(&mapping->page_tree,
page_index(page), PAGECACHE_TAG_DIRTY);
}
- spin_unlock_irq(&mapping->tree_lock);
+ spin_unlock_irqrestore(&mapping->tree_lock, flags);
if (mapping->host) {
/* !PageAnon && !swapper_space */
__mark_inode_dirty(mapping->host, I_DIRTY_PAGES);
diff --git a/mm/rmap.c b/mm/rmap.c
index 8685697..52a2f36 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -581,7 +581,11 @@ pte_t *__page_check_address(struct page *page, struct mm_struct *mm,
spinlock_t *ptl;

if (unlikely(PageHuge(page))) {
+ /* when pud is not present, pte will be NULL */
pte = huge_pte_offset(mm, address);
+ if (!pte)
+ return NULL;
+
ptl = &mm->page_table_lock;
goto check;
}
diff --git a/mm/slub.c b/mm/slub.c
index 5710788..fc719f7 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -4483,7 +4483,13 @@ static ssize_t show_slab_objects(struct kmem_cache *s,
page = c->partial;

if (page) {
- x = page->pobjects;
+ node = page_to_nid(page);
+ if (flags & SO_TOTAL)
+ WARN_ON_ONCE(1);
+ else if (flags & SO_OBJECTS)
+ WARN_ON_ONCE(1);
+ else
+ x = page->pages;
total += x;
nodes[node] += x;
}
diff --git a/mm/swapfile.c b/mm/swapfile.c
index fad1830..dbd2b67 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -1649,7 +1649,6 @@ SYSCALL_DEFINE1(swapoff, const char __user *, specialfile)
p->max = 0;
swap_map = p->swap_map;
p->swap_map = NULL;
- p->flags = 0;
spin_unlock(&swap_lock);
mutex_unlock(&swapon_mutex);
vfree(swap_map);
@@ -1667,6 +1666,16 @@ SYSCALL_DEFINE1(swapoff, const char __user *, specialfile)
mutex_unlock(&inode->i_mutex);
}
filp_close(swap_file, NULL);
+
+ /*
+ * Clear the SWP_USED flag after all resources are freed so that swapon
+ * can reuse this swap_info in alloc_swap_info() safely. It is ok to
+ * not hold p->lock after we cleared its SWP_WRITEOK.
+ */
+ spin_lock(&swap_lock);
+ p->flags = 0;
+ spin_unlock(&swap_lock);
+
err = 0;
atomic_inc(&proc_poll_event);
wake_up_interruptible(&proc_poll_wait);
diff --git a/net/core/fib_rules.c b/net/core/fib_rules.c
index c0c21b1..6af54f2 100644
--- a/net/core/fib_rules.c
+++ b/net/core/fib_rules.c
@@ -718,6 +718,13 @@ static int fib_rules_event(struct notifier_block *this, unsigned long event,
attach_rules(&ops->rules_list, dev);
break;

+ case NETDEV_CHANGENAME:
+ list_for_each_entry(ops, &net->rules_ops, list) {
+ detach_rules(&ops->rules_list, dev);
+ attach_rules(&ops->rules_list, dev);
+ }
+ break;
+
case NETDEV_UNREGISTER:
list_for_each_entry(ops, &net->rules_ops, list)
detach_rules(&ops->rules_list, dev);
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index af9c3c6..5d6cb54 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -74,36 +74,6 @@
static struct kmem_cache *skbuff_head_cache __read_mostly;
static struct kmem_cache *skbuff_fclone_cache __read_mostly;

-static void sock_pipe_buf_release(struct pipe_inode_info *pipe,
- struct pipe_buffer *buf)
-{
- put_page(buf->page);
-}
-
-static void sock_pipe_buf_get(struct pipe_inode_info *pipe,
- struct pipe_buffer *buf)
-{
- get_page(buf->page);
-}
-
-static int sock_pipe_buf_steal(struct pipe_inode_info *pipe,
- struct pipe_buffer *buf)
-{
- return 1;
-}
-
-
-/* Pipe buffer operations for a socket. */
-static const struct pipe_buf_operations sock_pipe_buf_ops = {
- .can_merge = 0,
- .map = generic_pipe_buf_map,
- .unmap = generic_pipe_buf_unmap,
- .confirm = generic_pipe_buf_confirm,
- .release = sock_pipe_buf_release,
- .steal = sock_pipe_buf_steal,
- .get = sock_pipe_buf_get,
-};
-
/*
* Keep out-of-line to prevent kernel bloat.
* __builtin_return_address is not used because it is not always
@@ -1665,7 +1635,7 @@ int skb_splice_bits(struct sk_buff *skb, unsigned int offset,
.partial = partial,
.nr_pages_max = MAX_SKB_FRAGS,
.flags = flags,
- .ops = &sock_pipe_buf_ops,
+ .ops = &nosteal_pipe_buf_ops,
.spd_release = sock_spd_release,
};
struct sk_buff *frag_iter;
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index 488600c..1914f5a 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -292,6 +292,7 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata,
return NULL;

spin_lock_init(&sta->lock);
+ spin_lock_init(&sta->ps_lock);
INIT_WORK(&sta->drv_unblock_wk, sta_unblock);
INIT_WORK(&sta->ampdu_mlme.work, ieee80211_ba_session_work);
mutex_init(&sta->ampdu_mlme.mtx);
@@ -1141,6 +1142,8 @@ void ieee80211_sta_ps_deliver_wakeup(struct sta_info *sta)

skb_queue_head_init(&pending);

+ /* sync with ieee80211_tx_h_unicast_ps_buf */
+ spin_lock(&sta->ps_lock);
/* Send all buffered frames to the station */
for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
int count = skb_queue_len(&pending), tmp;
@@ -1160,6 +1163,7 @@ void ieee80211_sta_ps_deliver_wakeup(struct sta_info *sta)
}

ieee80211_add_pending_skbs_fn(local, &pending, clear_sta_ps_flags, sta);
+ spin_unlock(&sta->ps_lock);

local->total_ps_buffered -= buffered;

@@ -1207,6 +1211,7 @@ static void ieee80211_send_null_response(struct ieee80211_sub_if_data *sdata,
memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
+ nullfunc->seq_ctrl = 0;

skb->priority = tid;
skb_set_queue_mapping(skb, ieee802_1d_to_ac[tid]);
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index 8c8ce05..a68155f 100644
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -216,6 +216,7 @@ struct sta_ampdu_mlme {
* @drv_unblock_wk: used for driver PS unblocking
* @listen_interval: listen interval of this station, when we're acting as AP
* @_flags: STA flags, see &enum ieee80211_sta_info_flags, do not use directly
+ * @ps_lock: used for powersave (when mac80211 is the AP) related locking
* @ps_tx_buf: buffers (per AC) of frames to transmit to this station
* when it leaves power saving state or polls
* @tx_filtered: buffers (per AC) of frames we already tried to
@@ -284,10 +285,8 @@ struct sta_info {
/* use the accessors defined below */
unsigned long _flags;

- /*
- * STA powersave frame queues, no more than the internal
- * locking required.
- */
+ /* STA powersave lock and frame queues */
+ spinlock_t ps_lock;
struct sk_buff_head ps_tx_buf[IEEE80211_NUM_ACS];
struct sk_buff_head tx_filtered[IEEE80211_NUM_ACS];
unsigned long driver_buffered_tids;
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 4ff35bf..25bbb2e 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -464,6 +464,20 @@ ieee80211_tx_h_unicast_ps_buf(struct ieee80211_tx_data *tx)
#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
if (tx->local->total_ps_buffered >= TOTAL_MAX_TX_BUFFER)
purge_old_ps_buffers(tx->local);
+
+ /* sync with ieee80211_sta_ps_deliver_wakeup */
+ spin_lock(&sta->ps_lock);
+ /*
+ * STA woke up the meantime and all the frames on ps_tx_buf have
+ * been queued to pending queue. No reordering can happen, go
+ * ahead and Tx the packet.
+ */
+ if (!test_sta_flag(sta, WLAN_STA_PS_STA) &&
+ !test_sta_flag(sta, WLAN_STA_PS_DRIVER)) {
+ spin_unlock(&sta->ps_lock);
+ return TX_CONTINUE;
+ }
+
if (skb_queue_len(&sta->ps_tx_buf[ac]) >= STA_MAX_TX_BUFFER) {
struct sk_buff *old = skb_dequeue(&sta->ps_tx_buf[ac]);
#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
@@ -480,6 +494,7 @@ ieee80211_tx_h_unicast_ps_buf(struct ieee80211_tx_data *tx)
info->control.vif = &tx->sdata->vif;
info->flags |= IEEE80211_TX_INTFL_NEED_TXPROCESSING;
skb_queue_tail(&sta->ps_tx_buf[ac], tx->skb);
+ spin_unlock(&sta->ps_lock);

if (!timer_pending(&local->sta_cleanup))
mod_timer(&local->sta_cleanup,
@@ -884,7 +899,7 @@ static int ieee80211_fragment(struct ieee80211_local *local,
pos += fraglen;
}

- skb->len = hdrlen + per_fragm;
+ skb_trim(skb, hdrlen + per_fragm);
return 0;
}

diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c
index cb1c430..f131caf 100644
--- a/net/sctp/sm_statefuns.c
+++ b/net/sctp/sm_statefuns.c
@@ -747,6 +747,13 @@ sctp_disposition_t sctp_sf_do_5_1D_ce(const struct sctp_endpoint *ep,
struct sctp_chunk auth;
sctp_ierror_t ret;

+ /* Make sure that we and the peer are AUTH capable */
+ if (!sctp_auth_enable || !new_asoc->peer.auth_capable) {
+ kfree_skb(chunk->auth_chunk);
+ sctp_association_free(new_asoc);
+ return sctp_sf_pdiscard(ep, asoc, type, arg, commands);
+ }
+
/* set-up our fake chunk so that we can process it */
auth.skb = chunk->auth_chunk;
auth.asoc = chunk->asoc;
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index c53d01e..c28eb7b 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -70,6 +70,7 @@
#include <linux/init.h>
#include <linux/crypto.h>
#include <linux/slab.h>
+#include <linux/compat.h>

#include <net/ip.h>
#include <net/icmp.h>
@@ -1376,11 +1377,19 @@ SCTP_STATIC int sctp_setsockopt_connectx(struct sock* sk,
/*
* New (hopefully final) interface for the API.
* We use the sctp_getaddrs_old structure so that use-space library
- * can avoid any unnecessary allocations. The only defferent part
+ * can avoid any unnecessary allocations. The only different part
* is that we store the actual length of the address buffer into the
- * addrs_num structure member. That way we can re-use the existing
+ * addrs_num structure member. That way we can re-use the existing
* code.
*/
+#ifdef CONFIG_COMPAT
+struct compat_sctp_getaddrs_old {
+ sctp_assoc_t assoc_id;
+ s32 addr_num;
+ compat_uptr_t addrs; /* struct sockaddr * */
+};
+#endif
+
SCTP_STATIC int sctp_getsockopt_connectx3(struct sock* sk, int len,
char __user *optval,
int __user *optlen)
@@ -1389,16 +1398,30 @@ SCTP_STATIC int sctp_getsockopt_connectx3(struct sock* sk, int len,
sctp_assoc_t assoc_id = 0;
int err = 0;

- if (len < sizeof(param))
- return -EINVAL;
+#ifdef CONFIG_COMPAT
+ if (is_compat_task()) {
+ struct compat_sctp_getaddrs_old param32;

- if (copy_from_user(&param, optval, sizeof(param)))
- return -EFAULT;
+ if (len < sizeof(param32))
+ return -EINVAL;
+ if (copy_from_user(&param32, optval, sizeof(param32)))
+ return -EFAULT;

- err = __sctp_setsockopt_connectx(sk,
- (struct sockaddr __user *)param.addrs,
- param.addr_num, &assoc_id);
+ param.assoc_id = param32.assoc_id;
+ param.addr_num = param32.addr_num;
+ param.addrs = compat_ptr(param32.addrs);
+ } else
+#endif
+ {
+ if (len < sizeof(param))
+ return -EINVAL;
+ if (copy_from_user(&param, optval, sizeof(param)))
+ return -EFAULT;
+ }

+ err = __sctp_setsockopt_connectx(sk, (struct sockaddr __user *)
+ param.addrs, param.addr_num,
+ &assoc_id);
if (err == 0 || err == -EINPROGRESS) {
if (copy_to_user(optval, &assoc_id, sizeof(assoc_id)))
return -EFAULT;
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index b2250da..a0e55e5 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -1002,9 +1002,13 @@ call_refreshresult(struct rpc_task *task)
task->tk_action = call_refresh;
switch (status) {
case 0:
- if (rpcauth_uptodatecred(task))
+ if (rpcauth_uptodatecred(task)) {
task->tk_action = call_allocate;
- return;
+ return;
+ }
+ /* Use rate-limiting and a max number of retries if refresh
+ * had status 0 but failed to update the cred.
+ */
case -ETIMEDOUT:
rpc_delay(task, 3*HZ);
case -EAGAIN:
diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index bfb78fa..d77a4f0 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -501,6 +501,7 @@ static int xs_nospace(struct rpc_task *task)
struct rpc_rqst *req = task->tk_rqstp;
struct rpc_xprt *xprt = req->rq_xprt;
struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt);
+ struct sock *sk = transport->inet;
int ret = -EAGAIN;

dprintk("RPC: %5u xmit incomplete (%u left of %u)\n",
@@ -518,7 +519,7 @@ static int xs_nospace(struct rpc_task *task)
* window size
*/
set_bit(SOCK_NOSPACE, &transport->sock->flags);
- transport->inet->sk_write_pending++;
+ sk->sk_write_pending++;
/* ...and wait for more buffer space */
xprt_wait_for_buffer_space(task, xs_nospace_callback);
}
@@ -528,6 +529,9 @@ static int xs_nospace(struct rpc_task *task)
}

spin_unlock_bh(&xprt->transport_lock);
+
+ /* Race breaker in case memory is freed before above code is called */
+ sk->sk_write_space(sk);
return ret;
}

diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index eddfdec..54fc90b 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -149,8 +149,8 @@ static inline void unix_set_secdata(struct scm_cookie *scm, struct sk_buff *skb)

static inline unsigned unix_hash_fold(__wsum n)
{
- unsigned hash = (__force unsigned)n;
- hash ^= hash>>16;
+ unsigned int hash = (__force unsigned int)csum_fold(n);
+
hash ^= hash>>8;
return hash&(UNIX_HASH_SIZE-1);
}
diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c
index d1d0ae8..98ff331 100644
--- a/scripts/mod/file2alias.c
+++ b/scripts/mod/file2alias.c
@@ -130,8 +130,8 @@ static void do_usb_entry(struct usb_device_id *id,
range_lo < 0x9 ? "[%X-9" : "[%X",
range_lo);
sprintf(alias + strlen(alias),
- range_hi > 0xA ? "a-%X]" : "%X]",
- range_lo);
+ range_hi > 0xA ? "A-%X]" : "%X]",
+ range_hi);
}
}
if (bcdDevice_initial_digits < (sizeof(id->bcdDevice_lo) * 2 - 1))
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index bcf1d73..4fa7939 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -4676,22 +4676,31 @@ static unsigned int selinux_ip_postroute(struct sk_buff *skb, int ifindex,
* as fast and as clean as possible. */
if (!selinux_policycap_netpeer)
return selinux_ip_postroute_compat(skb, ifindex, family);
+
+ secmark_active = selinux_secmark_enabled();
+ peerlbl_active = netlbl_enabled() || selinux_xfrm_enabled();
+ if (!secmark_active && !peerlbl_active)
+ return NF_ACCEPT;
+
+ sk = skb->sk;
+
#ifdef CONFIG_XFRM
/* If skb->dst->xfrm is non-NULL then the packet is undergoing an IPsec
* packet transformation so allow the packet to pass without any checks
* since we'll have another chance to perform access control checks
* when the packet is on it's final way out.
* NOTE: there appear to be some IPv6 multicast cases where skb->dst
- * is NULL, in this case go ahead and apply access control. */
- if (skb_dst(skb) != NULL && skb_dst(skb)->xfrm != NULL)
+ * is NULL, in this case go ahead and apply access control.
+ * NOTE: if this is a local socket (skb->sk != NULL) that is in the
+ * TCP listening state we cannot wait until the XFRM processing
+ * is done as we will miss out on the SA label if we do;
+ * unfortunately, this means more work, but it is only once per
+ * connection. */
+ if (skb_dst(skb) != NULL && skb_dst(skb)->xfrm != NULL &&
+ !(sk != NULL && sk->sk_state == TCP_LISTEN))
return NF_ACCEPT;
#endif
- secmark_active = selinux_secmark_enabled();
- peerlbl_active = netlbl_enabled() || selinux_xfrm_enabled();
- if (!secmark_active && !peerlbl_active)
- return NF_ACCEPT;

- sk = skb->sk;
if (sk == NULL) {
/* Without an associated socket the packet is either coming
* from the kernel or it is being forwarded; check the packet
@@ -4719,6 +4728,25 @@ static unsigned int selinux_ip_postroute(struct sk_buff *skb, int ifindex,
struct sk_security_struct *sksec = sk->sk_security;
if (selinux_skb_peerlbl_sid(skb, family, &skb_sid))
return NF_DROP;
+ /* At this point, if the returned skb peerlbl is SECSID_NULL
+ * and the packet has been through at least one XFRM
+ * transformation then we must be dealing with the "final"
+ * form of labeled IPsec packet; since we've already applied
+ * all of our access controls on this packet we can safely
+ * pass the packet. */
+ if (skb_sid == SECSID_NULL) {
+ switch (family) {
+ case PF_INET:
+ if (IPCB(skb)->flags & IPSKB_XFRM_TRANSFORMED)
+ return NF_ACCEPT;
+ break;
+ case PF_INET6:
+ if (IP6CB(skb)->flags & IP6SKB_XFRM_TRANSFORMED)
+ return NF_ACCEPT;
+ default:
+ return NF_DROP_ERR(-ECONNREFUSED);
+ }
+ }
if (selinux_conn_sid(sksec->sid, skb_sid, &peer_sid))
return NF_DROP;
secmark_perm = PACKET__SEND;
diff --git a/security/selinux/ss/policydb.c b/security/selinux/ss/policydb.c
index a7f61d5..23e9cba 100644
--- a/security/selinux/ss/policydb.c
+++ b/security/selinux/ss/policydb.c
@@ -1914,7 +1914,19 @@ static int filename_trans_read(struct policydb *p, void *fp)
if (rc)
goto out;

- hashtab_insert(p->filename_trans, ft, otype);
+ rc = hashtab_insert(p->filename_trans, ft, otype);
+ if (rc) {
+ /*
+ * Do not return -EEXIST to the caller, or the system
+ * will not boot.
+ */
+ if (rc != -EEXIST)
+ goto out;
+ /* But free memory to avoid memory leak. */
+ kfree(ft);
+ kfree(name);
+ kfree(otype);
+ }
}
hash_eval(p->filename_trans, "filenametr");
return 0;
@@ -3202,10 +3214,10 @@ static int filename_write_helper(void *key, void *data, void *ptr)
if (rc)
return rc;

- buf[0] = ft->stype;
- buf[1] = ft->ttype;
- buf[2] = ft->tclass;
- buf[3] = otype->otype;
+ buf[0] = cpu_to_le32(ft->stype);
+ buf[1] = cpu_to_le32(ft->ttype);
+ buf[2] = cpu_to_le32(ft->tclass);
+ buf[3] = cpu_to_le32(otype->otype);

rc = put_entry(buf, sizeof(u32), 4, fp);
if (rc)
diff --git a/security/selinux/ss/services.c b/security/selinux/ss/services.c
index 185f849..72b20b1 100644
--- a/security/selinux/ss/services.c
+++ b/security/selinux/ss/services.c
@@ -1229,6 +1229,10 @@ static int security_context_to_sid_core(const char *scontext, u32 scontext_len,
struct context context;
int rc = 0;

+ /* An empty security context is never valid. */
+ if (!scontext_len)
+ return -EINVAL;
+
if (!ss_initialized) {
int i;

diff --git a/sound/pci/Kconfig b/sound/pci/Kconfig
index 8816804..e7244ac 100644
--- a/sound/pci/Kconfig
+++ b/sound/pci/Kconfig
@@ -30,6 +30,7 @@ config SND_ALS300
select SND_PCM
select SND_AC97_CODEC
select SND_OPL3_LIB
+ select ZONE_DMA
help
Say 'Y' or 'M' to include support for Avance Logic ALS300/ALS300+

@@ -54,6 +55,7 @@ config SND_ALI5451
tristate "ALi M5451 PCI Audio Controller"
select SND_MPU401_UART
select SND_AC97_CODEC
+ select ZONE_DMA
help
Say Y here to include support for the integrated AC97 sound
device on motherboards using the ALi M5451 Audio Controller
@@ -158,6 +160,7 @@ config SND_AZT3328
select SND_PCM
select SND_RAWMIDI
select SND_AC97_CODEC
+ select ZONE_DMA
help
Say Y here to include support for Aztech AZF3328 (PCI168)
soundcards.
@@ -463,6 +466,7 @@ config SND_EMU10K1
select SND_HWDEP
select SND_RAWMIDI
select SND_AC97_CODEC
+ select ZONE_DMA
help
Say Y to include support for Sound Blaster PCI 512, Live!,
Audigy and E-mu APS (partially supported) soundcards.
@@ -478,6 +482,7 @@ config SND_EMU10K1X
tristate "Emu10k1X (Dell OEM Version)"
select SND_AC97_CODEC
select SND_RAWMIDI
+ select ZONE_DMA
help
Say Y here to include support for the Dell OEM version of the
Sound Blaster Live!.
@@ -511,6 +516,7 @@ config SND_ES1938
select SND_OPL3_LIB
select SND_MPU401_UART
select SND_AC97_CODEC
+ select ZONE_DMA
help
Say Y here to include support for soundcards based on ESS Solo-1
(ES1938, ES1946, ES1969) chips.
@@ -522,6 +528,7 @@ config SND_ES1968
tristate "ESS ES1968/1978 (Maestro-1/2/2E)"
select SND_MPU401_UART
select SND_AC97_CODEC
+ select ZONE_DMA
help
Say Y here to include support for soundcards based on ESS Maestro
1/2/2E chips.
@@ -602,6 +609,7 @@ config SND_ICE1712
select SND_MPU401_UART
select SND_AC97_CODEC
select BITREVERSE
+ select ZONE_DMA
help
Say Y here to include support for soundcards based on the
ICE1712 (Envy24) chip.
@@ -688,6 +696,7 @@ config SND_LX6464ES
config SND_MAESTRO3
tristate "ESS Allegro/Maestro3"
select SND_AC97_CODEC
+ select ZONE_DMA
help
Say Y here to include support for soundcards based on ESS Maestro 3
(Allegro) chips.
@@ -782,6 +791,7 @@ config SND_SIS7019
tristate "SiS 7019 Audio Accelerator"
depends on X86 && !X86_64
select SND_AC97_CODEC
+ select ZONE_DMA
help
Say Y here to include support for the SiS 7019 Audio Accelerator.

@@ -793,6 +803,7 @@ config SND_SONICVIBES
select SND_OPL3_LIB
select SND_MPU401_UART
select SND_AC97_CODEC
+ select ZONE_DMA
help
Say Y here to include support for soundcards based on the S3
SonicVibes chip.
@@ -804,6 +815,7 @@ config SND_TRIDENT
tristate "Trident 4D-Wave DX/NX; SiS 7018"
select SND_MPU401_UART
select SND_AC97_CODEC
+ select ZONE_DMA
help
Say Y here to include support for soundcards based on Trident
4D-Wave DX/NX or SiS 7018 chips.
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 1f78ca6..36bce68 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -5157,6 +5157,9 @@ static int alc269_fill_coef(struct hda_codec *codec)

if (spec->codec_variant != ALC269_TYPE_ALC269VB)
return 0;
+ /* ALC271X doesn't seem to support these COEFs (bko#52181) */
+ if (!strcmp(codec->chip_name, "ALC271X"))
+ return 0;

if ((alc_get_coef0(codec) & 0x00ff) < 0x015) {
alc_write_coef_idx(codec, 0xf, 0x960b);
diff --git a/sound/pci/oxygen/xonar_dg.c b/sound/pci/oxygen/xonar_dg.c
index bc6eb58..59eda0a 100644
--- a/sound/pci/oxygen/xonar_dg.c
+++ b/sound/pci/oxygen/xonar_dg.c
@@ -294,6 +294,16 @@ static int output_switch_put(struct snd_kcontrol *ctl,
oxygen_write16_masked(chip, OXYGEN_GPIO_DATA,
data->output_sel == 1 ? GPIO_HP_REAR : 0,
GPIO_HP_REAR);
+ oxygen_write8_masked(chip, OXYGEN_PLAY_ROUTING,
+ data->output_sel == 0 ?
+ OXYGEN_PLAY_MUTE01 :
+ OXYGEN_PLAY_MUTE23 |
+ OXYGEN_PLAY_MUTE45 |
+ OXYGEN_PLAY_MUTE67,
+ OXYGEN_PLAY_MUTE01 |
+ OXYGEN_PLAY_MUTE23 |
+ OXYGEN_PLAY_MUTE45 |
+ OXYGEN_PLAY_MUTE67);
}
mutex_unlock(&chip->mutex);
return changed;
@@ -597,7 +607,7 @@ struct oxygen_model model_xonar_dg = {
.model_data_size = sizeof(struct dg),
.device_config = PLAYBACK_0_TO_I2S |
PLAYBACK_1_TO_SPDIF |
- CAPTURE_0_FROM_I2S_2,
+ CAPTURE_0_FROM_I2S_1,
.dac_channels_pcm = 6,
.dac_channels_mixer = 0,
.function_flags = OXYGEN_FUNCTION_SPI,
diff --git a/sound/pci/rme9652/rme9652.c b/sound/pci/rme9652/rme9652.c
index 732c5e8..1b35864 100644
--- a/sound/pci/rme9652/rme9652.c
+++ b/sound/pci/rme9652/rme9652.c
@@ -285,7 +285,7 @@ static char channel_map_9636_ds[26] = {
/* ADAT channels are remapped */
1, 3, 5, 7, 9, 11, 13, 15,
/* channels 8 and 9 are S/PDIF */
- 24, 25
+ 24, 25,
/* others don't exist */
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
};
diff --git a/sound/soc/codecs/adau1701.c b/sound/soc/codecs/adau1701.c
index 8b7e1c5..3cca558 100644
--- a/sound/soc/codecs/adau1701.c
+++ b/sound/soc/codecs/adau1701.c
@@ -64,7 +64,7 @@

#define ADAU1701_SEROCTL_WORD_LEN_24 0x0000
#define ADAU1701_SEROCTL_WORD_LEN_20 0x0001
-#define ADAU1701_SEROCTL_WORD_LEN_16 0x0010
+#define ADAU1701_SEROCTL_WORD_LEN_16 0x0002
#define ADAU1701_SEROCTL_WORD_LEN_MASK 0x0003

#define ADAU1701_AUXNPOW_VBPD 0x40
diff --git a/sound/soc/codecs/sta32x.c b/sound/soc/codecs/sta32x.c
index d2f3715..25ae059 100644
--- a/sound/soc/codecs/sta32x.c
+++ b/sound/soc/codecs/sta32x.c
@@ -143,42 +143,42 @@ static const unsigned int sta32x_limiter_drc_release_tlv[] = {
13, 16, TLV_DB_SCALE_ITEM(-1500, 300, 0),
};

-static const struct soc_enum sta32x_drc_ac_enum =
- SOC_ENUM_SINGLE(STA32X_CONFD, STA32X_CONFD_DRC_SHIFT,
- 2, sta32x_drc_ac);
-static const struct soc_enum sta32x_auto_eq_enum =
- SOC_ENUM_SINGLE(STA32X_AUTO1, STA32X_AUTO1_AMEQ_SHIFT,
- 3, sta32x_auto_eq_mode);
-static const struct soc_enum sta32x_auto_gc_enum =
- SOC_ENUM_SINGLE(STA32X_AUTO1, STA32X_AUTO1_AMGC_SHIFT,
- 4, sta32x_auto_gc_mode);
-static const struct soc_enum sta32x_auto_xo_enum =
- SOC_ENUM_SINGLE(STA32X_AUTO2, STA32X_AUTO2_XO_SHIFT,
- 16, sta32x_auto_xo_mode);
-static const struct soc_enum sta32x_preset_eq_enum =
- SOC_ENUM_SINGLE(STA32X_AUTO3, STA32X_AUTO3_PEQ_SHIFT,
- 32, sta32x_preset_eq_mode);
-static const struct soc_enum sta32x_limiter_ch1_enum =
- SOC_ENUM_SINGLE(STA32X_C1CFG, STA32X_CxCFG_LS_SHIFT,
- 3, sta32x_limiter_select);
-static const struct soc_enum sta32x_limiter_ch2_enum =
- SOC_ENUM_SINGLE(STA32X_C2CFG, STA32X_CxCFG_LS_SHIFT,
- 3, sta32x_limiter_select);
-static const struct soc_enum sta32x_limiter_ch3_enum =
- SOC_ENUM_SINGLE(STA32X_C3CFG, STA32X_CxCFG_LS_SHIFT,
- 3, sta32x_limiter_select);
-static const struct soc_enum sta32x_limiter1_attack_rate_enum =
- SOC_ENUM_SINGLE(STA32X_L1AR, STA32X_LxA_SHIFT,
- 16, sta32x_limiter_attack_rate);
-static const struct soc_enum sta32x_limiter2_attack_rate_enum =
- SOC_ENUM_SINGLE(STA32X_L2AR, STA32X_LxA_SHIFT,
- 16, sta32x_limiter_attack_rate);
-static const struct soc_enum sta32x_limiter1_release_rate_enum =
- SOC_ENUM_SINGLE(STA32X_L1AR, STA32X_LxR_SHIFT,
- 16, sta32x_limiter_release_rate);
-static const struct soc_enum sta32x_limiter2_release_rate_enum =
- SOC_ENUM_SINGLE(STA32X_L2AR, STA32X_LxR_SHIFT,
- 16, sta32x_limiter_release_rate);
+static SOC_ENUM_SINGLE_DECL(sta32x_drc_ac_enum,
+ STA32X_CONFD, STA32X_CONFD_DRC_SHIFT,
+ sta32x_drc_ac);
+static SOC_ENUM_SINGLE_DECL(sta32x_auto_eq_enum,
+ STA32X_AUTO1, STA32X_AUTO1_AMEQ_SHIFT,
+ sta32x_auto_eq_mode);
+static SOC_ENUM_SINGLE_DECL(sta32x_auto_gc_enum,
+ STA32X_AUTO1, STA32X_AUTO1_AMGC_SHIFT,
+ sta32x_auto_gc_mode);
+static SOC_ENUM_SINGLE_DECL(sta32x_auto_xo_enum,
+ STA32X_AUTO2, STA32X_AUTO2_XO_SHIFT,
+ sta32x_auto_xo_mode);
+static SOC_ENUM_SINGLE_DECL(sta32x_preset_eq_enum,
+ STA32X_AUTO3, STA32X_AUTO3_PEQ_SHIFT,
+ sta32x_preset_eq_mode);
+static SOC_ENUM_SINGLE_DECL(sta32x_limiter_ch1_enum,
+ STA32X_C1CFG, STA32X_CxCFG_LS_SHIFT,
+ sta32x_limiter_select);
+static SOC_ENUM_SINGLE_DECL(sta32x_limiter_ch2_enum,
+ STA32X_C2CFG, STA32X_CxCFG_LS_SHIFT,
+ sta32x_limiter_select);
+static SOC_ENUM_SINGLE_DECL(sta32x_limiter_ch3_enum,
+ STA32X_C3CFG, STA32X_CxCFG_LS_SHIFT,
+ sta32x_limiter_select);
+static SOC_ENUM_SINGLE_DECL(sta32x_limiter1_attack_rate_enum,
+ STA32X_L1AR, STA32X_LxA_SHIFT,
+ sta32x_limiter_attack_rate);
+static SOC_ENUM_SINGLE_DECL(sta32x_limiter2_attack_rate_enum,
+ STA32X_L2AR, STA32X_LxA_SHIFT,
+ sta32x_limiter_attack_rate);
+static SOC_ENUM_SINGLE_DECL(sta32x_limiter1_release_rate_enum,
+ STA32X_L1AR, STA32X_LxR_SHIFT,
+ sta32x_limiter_release_rate);
+static SOC_ENUM_SINGLE_DECL(sta32x_limiter2_release_rate_enum,
+ STA32X_L2AR, STA32X_LxR_SHIFT,
+ sta32x_limiter_release_rate);

/* byte array controls for setting biquad, mixer, scaling coefficients;
* for biquads all five coefficients need to be set in one go,
@@ -350,7 +350,7 @@ SOC_SINGLE_TLV("Treble Tone Control", STA32X_TONE, STA32X_TONE_TTC_SHIFT, 15, 0,
SOC_ENUM("Limiter1 Attack Rate (dB/ms)", sta32x_limiter1_attack_rate_enum),
SOC_ENUM("Limiter2 Attack Rate (dB/ms)", sta32x_limiter2_attack_rate_enum),
SOC_ENUM("Limiter1 Release Rate (dB/ms)", sta32x_limiter1_release_rate_enum),
-SOC_ENUM("Limiter2 Release Rate (dB/ms)", sta32x_limiter1_release_rate_enum),
+SOC_ENUM("Limiter2 Release Rate (dB/ms)", sta32x_limiter2_release_rate_enum),

/* depending on mode, the attack/release thresholds have
* two different enum definitions; provide both
diff --git a/sound/soc/codecs/wm8770.c b/sound/soc/codecs/wm8770.c
index aa05e65..d5f7d8d 100644
--- a/sound/soc/codecs/wm8770.c
+++ b/sound/soc/codecs/wm8770.c
@@ -163,8 +163,8 @@ static const char *ain_text[] = {
"AIN5", "AIN6", "AIN7", "AIN8"
};

-static const struct soc_enum ain_enum =
- SOC_ENUM_DOUBLE(WM8770_ADCMUX, 0, 4, 8, ain_text);
+static SOC_ENUM_DOUBLE_DECL(ain_enum,
+ WM8770_ADCMUX, 0, 4, ain_text);

static const struct snd_kcontrol_new ain_mux =
SOC_DAPM_ENUM("Capture Mux", ain_enum);
diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c
index 41b9fe0..4f7b330 100644
--- a/sound/usb/mixer.c
+++ b/sound/usb/mixer.c
@@ -831,6 +831,7 @@ static void volume_control_quirks(struct usb_mixer_elem_info *cval,
}
break;

+ case USB_ID(0x046d, 0x0807): /* Logitech Webcam C500 */
case USB_ID(0x046d, 0x0808):
case USB_ID(0x046d, 0x0809):
case USB_ID(0x046d, 0x081b): /* HD Webcam c310 */
diff --git a/sound/usb/mixer_maps.c b/sound/usb/mixer_maps.c
index f1324c4..0e4e909 100644
--- a/sound/usb/mixer_maps.c
+++ b/sound/usb/mixer_maps.c
@@ -304,6 +304,11 @@ static struct usbmix_name_map hercules_usb51_map[] = {
{ 0 } /* terminator */
};

+static const struct usbmix_name_map kef_x300a_map[] = {
+ { 10, NULL }, /* firmware locks up (?) when we try to access this FU */
+ { 0 }
+};
+
/*
* Control map entries
*/
@@ -371,6 +376,10 @@ static struct usbmix_ctl_map usbmix_ctl_maps[] = {
.map = scratch_live_map,
.ignore_ctl_error = 1,
},
+ {
+ .id = USB_ID(0x27ac, 0x1000),
+ .map = kef_x300a_map,
+ },
{ 0 } /* terminator */
};

diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c
index 3c6f780..279a2f1 100644
--- a/tools/power/x86/turbostat/turbostat.c
+++ b/tools/power/x86/turbostat/turbostat.c
@@ -32,6 +32,7 @@
#include <dirent.h>
#include <string.h>
#include <ctype.h>
+#include <cpuid.h>

#define MSR_TSC 0x10
#define MSR_NEHALEM_PLATFORM_INFO 0xCE
@@ -847,7 +848,7 @@ void check_cpuid()

eax = ebx = ecx = edx = 0;

- asm("cpuid" : "=a" (max_level), "=b" (ebx), "=c" (ecx), "=d" (edx) : "a" (0));
+ __get_cpuid(0, &max_level, &ebx, &ecx, &edx);

if (ebx == 0x756e6547 && edx == 0x49656e69 && ecx == 0x6c65746e)
genuine_intel = 1;
@@ -856,7 +857,7 @@ void check_cpuid()
fprintf(stderr, "%.4s%.4s%.4s ",
(char *)&ebx, (char *)&edx, (char *)&ecx);

- asm("cpuid" : "=a" (fms), "=c" (ecx), "=d" (edx) : "a" (1) : "ebx");
+ __get_cpuid(1, &fms, &ebx, &ecx, &edx);
family = (fms >> 8) & 0xf;
model = (fms >> 4) & 0xf;
stepping = fms & 0xf;
@@ -878,7 +879,7 @@ void check_cpuid()
* This check is valid for both Intel and AMD.
*/
ebx = ecx = edx = 0;
- asm("cpuid" : "=a" (max_level), "=b" (ebx), "=c" (ecx), "=d" (edx) : "a" (0x80000000));
+ __get_cpuid(0x80000000, &max_level, &ebx, &ecx, &edx);

if (max_level < 0x80000007) {
fprintf(stderr, "CPUID: no invariant TSC (max_level 0x%x)\n", max_level);
@@ -889,7 +890,7 @@ void check_cpuid()
* Non-Stop TSC is advertised by CPUID.EAX=0x80000007: EDX.bit8
* this check is valid for both Intel and AMD
*/
- asm("cpuid" : "=a" (eax), "=b" (ebx), "=c" (ecx), "=d" (edx) : "a" (0x80000007));
+ __get_cpuid(0x80000007, &eax, &ebx, &ecx, &edx);
has_invariant_tsc = edx & (1 << 8);

if (!has_invariant_tsc) {
@@ -902,7 +903,7 @@ void check_cpuid()
* this check is valid for both Intel and AMD
*/

- asm("cpuid" : "=a" (eax), "=b" (ebx), "=c" (ecx), "=d" (edx) : "a" (0x6));
+ __get_cpuid(0x6, &eax, &ebx, &ecx, &edx);
has_aperf = ecx & (1 << 0);
if (!has_aperf) {
fprintf(stderr, "No APERF MSR\n");
diff --git a/virt/kvm/coalesced_mmio.c b/virt/kvm/coalesced_mmio.c
index a6ec206..e56b240 100644
--- a/virt/kvm/coalesced_mmio.c
+++ b/virt/kvm/coalesced_mmio.c
@@ -148,17 +148,13 @@ int kvm_vm_ioctl_register_coalesced_mmio(struct kvm *kvm,
list_add_tail(&dev->list, &kvm->coalesced_zones);
mutex_unlock(&kvm->slots_lock);

- return ret;
+ return 0;

out_free_dev:
mutex_unlock(&kvm->slots_lock);
-
kfree(dev);

- if (dev == NULL)
- return -ENXIO;
-
- return 0;
+ return ret;
}

int kvm_vm_ioctl_unregister_coalesced_mmio(struct kvm *kvm,

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