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-rw-r--r--MAINTAINERS2
-rw-r--r--arch/blackfin/include/asm/bfin-global.h2
-rw-r--r--arch/blackfin/include/asm/dma-mapping.h6
-rw-r--r--arch/blackfin/kernel/bfin_gpio.c2
-rw-r--r--arch/blackfin/kernel/cplb-nompu/cplbinit.c9
-rw-r--r--arch/blackfin/kernel/process.c7
-rw-r--r--arch/blackfin/kernel/setup.c12
-rw-r--r--arch/blackfin/kernel/traps.c11
-rw-r--r--arch/blackfin/mach-common/cache.S8
-rw-r--r--arch/blackfin/mach-common/cpufreq.c14
-rw-r--r--arch/blackfin/mach-common/entry.S2
-rw-r--r--arch/blackfin/mm/sram-alloc.c8
-rw-r--r--include/linux/ring_buffer.h3
-rw-r--r--init/Kconfig2
-rw-r--r--kernel/cpuset.c12
-rw-r--r--kernel/posix-cpu-timers.c7
-rw-r--r--kernel/power/main.c2
-rw-r--r--kernel/profile.c2
-rw-r--r--kernel/sched.c13
-rw-r--r--kernel/sched_debug.c5
-rw-r--r--kernel/sched_stats.h15
-rw-r--r--kernel/trace/ftrace.c34
-rw-r--r--kernel/trace/ring_buffer.c115
-rw-r--r--lib/swiotlb.c10
-rw-r--r--sound/pci/hda/hda_beep.c8
-rw-r--r--sound/pci/hda/hda_beep.h1
-rw-r--r--sound/pci/hda/patch_sigmatel.c99
-rw-r--r--sound/pci/pcxhr/pcxhr.c5
28 files changed, 321 insertions, 95 deletions
diff --git a/MAINTAINERS b/MAINTAINERS
index 8e0777fae3c..627e4c89328 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3928,8 +3928,6 @@ M: bootc@bootc.net
S: Maintained
SOFTWARE RAID (Multiple Disks) SUPPORT
-P: Ingo Molnar
-M: mingo@redhat.com
P: Neil Brown
M: neilb@suse.de
L: linux-raid@vger.kernel.org
diff --git a/arch/blackfin/include/asm/bfin-global.h b/arch/blackfin/include/asm/bfin-global.h
index 56dcb0a2d24..77295666c34 100644
--- a/arch/blackfin/include/asm/bfin-global.h
+++ b/arch/blackfin/include/asm/bfin-global.h
@@ -101,7 +101,7 @@ extern u16 _bfin_swrst; /* shadow for Software Reset Register (SWRST) */
extern unsigned long _ramstart, _ramend, _rambase;
extern unsigned long memory_start, memory_end, physical_mem_end;
extern char _stext_l1[], _etext_l1[], _sdata_l1[], _edata_l1[], _sbss_l1[],
- _ebss_l1[], _l1_lma_start[], _sdata_b_l1[], _ebss_b_l1[],
+ _ebss_l1[], _l1_lma_start[], _sdata_b_l1[], _sbss_b_l1[], _ebss_b_l1[],
_stext_l2[], _etext_l2[], _sdata_l2[], _edata_l2[], _sbss_l2[],
_ebss_l2[], _l2_lma_start[];
diff --git a/arch/blackfin/include/asm/dma-mapping.h b/arch/blackfin/include/asm/dma-mapping.h
index ede748d67ef..d7d9148e433 100644
--- a/arch/blackfin/include/asm/dma-mapping.h
+++ b/arch/blackfin/include/asm/dma-mapping.h
@@ -15,7 +15,11 @@ void dma_free_coherent(struct device *dev, size_t size, void *vaddr,
#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
-#define dma_mapping_error
+static inline
+int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
+{
+ return 0;
+}
/*
* Map a single buffer of the indicated size for DMA in streaming mode.
diff --git a/arch/blackfin/kernel/bfin_gpio.c b/arch/blackfin/kernel/bfin_gpio.c
index 6e08f425bb4..5c0800adb4d 100644
--- a/arch/blackfin/kernel/bfin_gpio.c
+++ b/arch/blackfin/kernel/bfin_gpio.c
@@ -218,7 +218,7 @@ inline int check_gpio(unsigned gpio)
if (gpio == GPIO_PB15 || gpio == GPIO_PC14 || gpio == GPIO_PC15
|| gpio == GPIO_PH14 || gpio == GPIO_PH15
|| gpio == GPIO_PJ14 || gpio == GPIO_PJ15
- || gpio > MAX_BLACKFIN_GPIOS)
+ || gpio >= MAX_BLACKFIN_GPIOS)
return -EINVAL;
return 0;
}
diff --git a/arch/blackfin/kernel/cplb-nompu/cplbinit.c b/arch/blackfin/kernel/cplb-nompu/cplbinit.c
index 512f8c92ead..2debc900e24 100644
--- a/arch/blackfin/kernel/cplb-nompu/cplbinit.c
+++ b/arch/blackfin/kernel/cplb-nompu/cplbinit.c
@@ -188,10 +188,11 @@ static struct cplb_desc cplb_data[] = {
static u16 __init lock_kernel_check(u32 start, u32 end)
{
- if ((end <= (u32) _end && end >= (u32)_stext) ||
- (start <= (u32) _end && start >= (u32)_stext))
- return IN_KERNEL;
- return 0;
+ if (start >= (u32)_end || end <= (u32)_stext)
+ return 0;
+
+ /* This cplb block overlapped with kernel area. */
+ return IN_KERNEL;
}
static unsigned short __init
diff --git a/arch/blackfin/kernel/process.c b/arch/blackfin/kernel/process.c
index 77800dd83e5..0c3ea118b65 100644
--- a/arch/blackfin/kernel/process.c
+++ b/arch/blackfin/kernel/process.c
@@ -351,10 +351,15 @@ int _access_ok(unsigned long addr, unsigned long size)
return 1;
#endif
#if L1_DATA_B_LENGTH != 0
- if (addr >= L1_DATA_B_START
+ if (addr >= L1_DATA_B_START + (_ebss_b_l1 - _sdata_b_l1)
&& addr + size <= L1_DATA_B_START + L1_DATA_B_LENGTH)
return 1;
#endif
+#if L2_LENGTH != 0
+ if (addr >= L2_START + (_ebss_l2 - _stext_l2)
+ && addr + size <= L2_START + L2_LENGTH)
+ return 1;
+#endif
return 0;
}
EXPORT_SYMBOL(_access_ok);
diff --git a/arch/blackfin/kernel/setup.c b/arch/blackfin/kernel/setup.c
index 7f35d1046cd..71a9a8c53ce 100644
--- a/arch/blackfin/kernel/setup.c
+++ b/arch/blackfin/kernel/setup.c
@@ -119,23 +119,23 @@ void __init bfin_relocate_l1_mem(void)
/* Copy _stext_l1 to _etext_l1 to L1 instruction SRAM */
dma_memcpy(_stext_l1, _l1_lma_start, l1_code_length);
- l1_data_a_length = _ebss_l1 - _sdata_l1;
+ l1_data_a_length = _sbss_l1 - _sdata_l1;
if (l1_data_a_length > L1_DATA_A_LENGTH)
panic("L1 Data SRAM Bank A Overflow\n");
- /* Copy _sdata_l1 to _ebss_l1 to L1 data bank A SRAM */
+ /* Copy _sdata_l1 to _sbss_l1 to L1 data bank A SRAM */
dma_memcpy(_sdata_l1, _l1_lma_start + l1_code_length, l1_data_a_length);
- l1_data_b_length = _ebss_b_l1 - _sdata_b_l1;
+ l1_data_b_length = _sbss_b_l1 - _sdata_b_l1;
if (l1_data_b_length > L1_DATA_B_LENGTH)
panic("L1 Data SRAM Bank B Overflow\n");
- /* Copy _sdata_b_l1 to _ebss_b_l1 to L1 data bank B SRAM */
+ /* Copy _sdata_b_l1 to _sbss_b_l1 to L1 data bank B SRAM */
dma_memcpy(_sdata_b_l1, _l1_lma_start + l1_code_length +
l1_data_a_length, l1_data_b_length);
if (L2_LENGTH != 0) {
- l2_length = _ebss_l2 - _stext_l2;
+ l2_length = _sbss_l2 - _stext_l2;
if (l2_length > L2_LENGTH)
panic("L2 SRAM Overflow\n");
@@ -827,7 +827,7 @@ void __init setup_arch(char **cmdline_p)
printk(KERN_ERR "Warning: Compiled for Rev %d, but running on Rev %d\n",
bfin_compiled_revid(), bfin_revid());
}
- if (bfin_revid() <= CONFIG_BF_REV_MIN || bfin_revid() > CONFIG_BF_REV_MAX)
+ if (bfin_revid() < CONFIG_BF_REV_MIN || bfin_revid() > CONFIG_BF_REV_MAX)
printk(KERN_ERR "Warning: Unsupported Chip Revision ADSP-%s Rev 0.%d detected\n",
CPU, bfin_revid());
}
diff --git a/arch/blackfin/kernel/traps.c b/arch/blackfin/kernel/traps.c
index 1aa2c788e22..bef025b0744 100644
--- a/arch/blackfin/kernel/traps.c
+++ b/arch/blackfin/kernel/traps.c
@@ -59,7 +59,7 @@
#endif
-#ifdef CONFIG_VERBOSE_DEBUG
+#ifdef CONFIG_DEBUG_VERBOSE
#define verbose_printk(fmt, arg...) \
printk(fmt, ##arg)
#else
@@ -147,9 +147,12 @@ static void decode_address(char *buf, unsigned long address)
char *name = p->comm;
struct file *file = vma->vm_file;
- if (file)
- name = d_path(&file->f_path, _tmpbuf,
+ if (file) {
+ char *d_name = d_path(&file->f_path, _tmpbuf,
sizeof(_tmpbuf));
+ if (!IS_ERR(d_name))
+ name = d_name;
+ }
/* FLAT does not have its text aligned to the start of
* the map while FDPIC ELF does ...
@@ -571,7 +574,7 @@ asmlinkage void trap_c(struct pt_regs *fp)
#endif
panic("Kernel exception");
} else {
-#ifdef CONFIG_VERBOSE_DEBUG
+#ifdef CONFIG_DEBUG_VERBOSE
unsigned long *stack;
/* Dump the user space stack */
stack = (unsigned long *)rdusp();
diff --git a/arch/blackfin/mach-common/cache.S b/arch/blackfin/mach-common/cache.S
index db532181fbd..a028e945041 100644
--- a/arch/blackfin/mach-common/cache.S
+++ b/arch/blackfin/mach-common/cache.S
@@ -25,9 +25,13 @@
*/
.macro do_flush flushins:req optflushins optnopins label
+ R2 = -L1_CACHE_BYTES;
+
+ /* start = (start & -L1_CACHE_BYTES) */
+ R0 = R0 & R2;
+
/* end = ((end - 1) & -L1_CACHE_BYTES) + L1_CACHE_BYTES; */
R1 += -1;
- R2 = -L1_CACHE_BYTES;
R1 = R1 & R2;
R1 += L1_CACHE_BYTES;
@@ -63,7 +67,7 @@ ENDPROC(_blackfin_icache_flush_range)
/* Flush all cache lines assocoiated with this area of memory. */
ENTRY(_blackfin_icache_dcache_flush_range)
- do_flush IFLUSH, FLUSH
+ do_flush FLUSH, IFLUSH
ENDPROC(_blackfin_icache_dcache_flush_range)
/* Throw away all D-cached data in specified region without any obligation to
diff --git a/arch/blackfin/mach-common/cpufreq.c b/arch/blackfin/mach-common/cpufreq.c
index c22c47b6012..dda5443b37e 100644
--- a/arch/blackfin/mach-common/cpufreq.c
+++ b/arch/blackfin/mach-common/cpufreq.c
@@ -72,13 +72,13 @@ unsigned int __bfin_cycles_mod;
/**************************************************************************/
-static unsigned int bfin_getfreq(unsigned int cpu)
+static unsigned int bfin_getfreq_khz(unsigned int cpu)
{
/* The driver only support single cpu */
if (cpu != 0)
return -1;
- return get_cclk();
+ return get_cclk() / 1000;
}
@@ -96,7 +96,7 @@ static int bfin_target(struct cpufreq_policy *policy,
cclk_hz = bfin_freq_table[index].frequency;
- freqs.old = bfin_getfreq(0);
+ freqs.old = bfin_getfreq_khz(0);
freqs.new = cclk_hz;
freqs.cpu = 0;
@@ -137,8 +137,8 @@ static int __init __bfin_cpu_init(struct cpufreq_policy *policy)
if (policy->cpu != 0)
return -EINVAL;
- cclk = get_cclk();
- sclk = get_sclk();
+ cclk = get_cclk() / 1000;
+ sclk = get_sclk() / 1000;
#if ANOMALY_05000273 || (!defined(CONFIG_BF54x) && defined(CONFIG_BFIN_DCACHE))
min_cclk = sclk * 2;
@@ -152,7 +152,7 @@ static int __init __bfin_cpu_init(struct cpufreq_policy *policy)
dpm_state_table[index].csel = csel << 4; /* Shift now into PLL_DIV bitpos */
dpm_state_table[index].tscale = (TIME_SCALE / (1 << csel)) - 1;
- pr_debug("cpufreq: freq:%d csel:%d tscale:%d\n",
+ pr_debug("cpufreq: freq:%d csel:0x%x tscale:%d\n",
bfin_freq_table[index].frequency,
dpm_state_table[index].csel,
dpm_state_table[index].tscale);
@@ -173,7 +173,7 @@ static struct freq_attr *bfin_freq_attr[] = {
static struct cpufreq_driver bfin_driver = {
.verify = bfin_verify_speed,
.target = bfin_target,
- .get = bfin_getfreq,
+ .get = bfin_getfreq_khz,
.init = __bfin_cpu_init,
.name = "bfin cpufreq",
.owner = THIS_MODULE,
diff --git a/arch/blackfin/mach-common/entry.S b/arch/blackfin/mach-common/entry.S
index c13fa8da28c..bde6dc4e261 100644
--- a/arch/blackfin/mach-common/entry.S
+++ b/arch/blackfin/mach-common/entry.S
@@ -277,7 +277,7 @@ ENTRY(_bfin_return_from_exception)
p5.h = hi(ILAT);
r6 = [p5];
r7 = 0x20; /* Did I just cause anther HW error? */
- r7 = r7 & r1;
+ r6 = r7 & r6;
CC = R7 == R6;
if CC JUMP _double_fault;
#endif
diff --git a/arch/blackfin/mm/sram-alloc.c b/arch/blackfin/mm/sram-alloc.c
index 0f1ca6930c1..cc6f336e731 100644
--- a/arch/blackfin/mm/sram-alloc.c
+++ b/arch/blackfin/mm/sram-alloc.c
@@ -183,10 +183,10 @@ static void __init l2_sram_init(void)
return;
}
- free_l2_sram_head.next->paddr = (void *)L2_START +
- (_etext_l2 - _stext_l2) + (_edata_l2 - _sdata_l2);
- free_l2_sram_head.next->size = L2_LENGTH -
- (_etext_l2 - _stext_l2) + (_edata_l2 - _sdata_l2);
+ free_l2_sram_head.next->paddr =
+ (void *)L2_START + (_ebss_l2 - _stext_l2);
+ free_l2_sram_head.next->size =
+ L2_LENGTH - (_ebss_l2 - _stext_l2);
free_l2_sram_head.next->pid = 0;
free_l2_sram_head.next->next = NULL;
diff --git a/include/linux/ring_buffer.h b/include/linux/ring_buffer.h
index 536b0ca46a0..e097c2e6b6d 100644
--- a/include/linux/ring_buffer.h
+++ b/include/linux/ring_buffer.h
@@ -120,6 +120,9 @@ unsigned long ring_buffer_overruns(struct ring_buffer *buffer);
u64 ring_buffer_time_stamp(int cpu);
void ring_buffer_normalize_time_stamp(int cpu, u64 *ts);
+void tracing_on(void);
+void tracing_off(void);
+
enum ring_buffer_flags {
RB_FL_OVERWRITE = 1 << 0,
};
diff --git a/init/Kconfig b/init/Kconfig
index 226da2733c1..f763762d544 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -354,7 +354,7 @@ config RT_GROUP_SCHED
setting below. If enabled, it will also make it impossible to
schedule realtime tasks for non-root users until you allocate
realtime bandwidth for them.
- See Documentation/sched-rt-group.txt for more information.
+ See Documentation/scheduler/sched-rt-group.txt for more information.
choice
depends on GROUP_SCHED
diff --git a/kernel/cpuset.c b/kernel/cpuset.c
index 3e00526f52e..81fc6791a29 100644
--- a/kernel/cpuset.c
+++ b/kernel/cpuset.c
@@ -587,7 +587,6 @@ static int generate_sched_domains(cpumask_t **domains,
int ndoms; /* number of sched domains in result */
int nslot; /* next empty doms[] cpumask_t slot */
- ndoms = 0;
doms = NULL;
dattr = NULL;
csa = NULL;
@@ -674,10 +673,8 @@ restart:
* Convert <csn, csa> to <ndoms, doms> and populate cpu masks.
*/
doms = kmalloc(ndoms * sizeof(cpumask_t), GFP_KERNEL);
- if (!doms) {
- ndoms = 0;
+ if (!doms)
goto done;
- }
/*
* The rest of the code, including the scheduler, can deal with
@@ -732,6 +729,13 @@ restart:
done:
kfree(csa);
+ /*
+ * Fallback to the default domain if kmalloc() failed.
+ * See comments in partition_sched_domains().
+ */
+ if (doms == NULL)
+ ndoms = 1;
+
*domains = doms;
*attributes = dattr;
return ndoms;
diff --git a/kernel/posix-cpu-timers.c b/kernel/posix-cpu-timers.c
index 153dcb2639c..895337b16a2 100644
--- a/kernel/posix-cpu-timers.c
+++ b/kernel/posix-cpu-timers.c
@@ -1308,9 +1308,10 @@ static inline int task_cputime_expired(const struct task_cputime *sample,
*/
static inline int fastpath_timer_check(struct task_struct *tsk)
{
- struct signal_struct *sig = tsk->signal;
+ struct signal_struct *sig;
- if (unlikely(!sig))
+ /* tsk == current, ensure it is safe to use ->signal/sighand */
+ if (unlikely(tsk->exit_state))
return 0;
if (!task_cputime_zero(&tsk->cputime_expires)) {
@@ -1323,6 +1324,8 @@ static inline int fastpath_timer_check(struct task_struct *tsk)
if (task_cputime_expired(&task_sample, &tsk->cputime_expires))
return 1;
}
+
+ sig = tsk->signal;
if (!task_cputime_zero(&sig->cputime_expires)) {
struct task_cputime group_sample;
diff --git a/kernel/power/main.c b/kernel/power/main.c
index 19122cf6d82..b8f7ce9473e 100644
--- a/kernel/power/main.c
+++ b/kernel/power/main.c
@@ -174,7 +174,7 @@ static void suspend_test_finish(const char *label)
* has some performance issues. The stack dump of a WARN_ON
* is more likely to get the right attention than a printk...
*/
- WARN_ON(msec > (TEST_SUSPEND_SECONDS * 1000));
+ WARN(msec > (TEST_SUSPEND_SECONDS * 1000), "Component: %s\n", label);
}
#else
diff --git a/kernel/profile.c b/kernel/profile.c
index 9830a037d8d..5b7d1ac7124 100644
--- a/kernel/profile.c
+++ b/kernel/profile.c
@@ -544,7 +544,7 @@ static const struct file_operations proc_profile_operations = {
};
#ifdef CONFIG_SMP
-static void __init profile_nop(void *unused)
+static inline void profile_nop(void *unused)
{
}
diff --git a/kernel/sched.c b/kernel/sched.c
index c94baf2969e..9b1e79371c2 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -7789,13 +7789,14 @@ static int dattrs_equal(struct sched_domain_attr *cur, int idx_cur,
*
* The passed in 'doms_new' should be kmalloc'd. This routine takes
* ownership of it and will kfree it when done with it. If the caller
- * failed the kmalloc call, then it can pass in doms_new == NULL,
- * and partition_sched_domains() will fallback to the single partition
- * 'fallback_doms', it also forces the domains to be rebuilt.
+ * failed the kmalloc call, then it can pass in doms_new == NULL &&
+ * ndoms_new == 1, and partition_sched_domains() will fallback to
+ * the single partition 'fallback_doms', it also forces the domains
+ * to be rebuilt.
*
- * If doms_new==NULL it will be replaced with cpu_online_map.
- * ndoms_new==0 is a special case for destroying existing domains.
- * It will not create the default domain.
+ * If doms_new == NULL it will be replaced with cpu_online_map.
+ * ndoms_new == 0 is a special case for destroying existing domains,
+ * and it will not create the default domain.
*
* Call with hotplug lock held
*/
diff --git a/kernel/sched_debug.c b/kernel/sched_debug.c
index 48ecc51e770..26ed8e3d1c1 100644
--- a/kernel/sched_debug.c
+++ b/kernel/sched_debug.c
@@ -423,10 +423,11 @@ void proc_sched_show_task(struct task_struct *p, struct seq_file *m)
#undef __P
{
+ unsigned int this_cpu = raw_smp_processor_id();
u64 t0, t1;
- t0 = sched_clock();
- t1 = sched_clock();
+ t0 = cpu_clock(this_cpu);
+ t1 = cpu_clock(this_cpu);
SEQ_printf(m, "%-35s:%21Ld\n",
"clock-delta", (long long)(t1-t0));
}
diff --git a/kernel/sched_stats.h b/kernel/sched_stats.h
index ee71bec1da6..7dbf72a2b02 100644
--- a/kernel/sched_stats.h
+++ b/kernel/sched_stats.h
@@ -298,9 +298,11 @@ static inline void account_group_user_time(struct task_struct *tsk,
{
struct signal_struct *sig;
- sig = tsk->signal;
- if (unlikely(!sig))
+ /* tsk == current, ensure it is safe to use ->signal */
+ if (unlikely(tsk->exit_state))
return;
+
+ sig = tsk->signal;
if (sig->cputime.totals) {
struct task_cputime *times;
@@ -325,9 +327,11 @@ static inline void account_group_system_time(struct task_struct *tsk,
{
struct signal_struct *sig;
- sig = tsk->signal;
- if (unlikely(!sig))
+ /* tsk == current, ensure it is safe to use ->signal */
+ if (unlikely(tsk->exit_state))
return;
+
+ sig = tsk->signal;
if (sig->cputime.totals) {
struct task_cputime *times;
@@ -353,8 +357,11 @@ static inline void account_group_exec_runtime(struct task_struct *tsk,
struct signal_struct *sig;
sig = tsk->signal;
+ /* see __exit_signal()->task_rq_unlock_wait() */
+ barrier();
if (unlikely(!sig))
return;
+
if (sig->cputime.totals) {
struct task_cputime *times;
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 4a39d24568c..e60205722d0 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -185,7 +185,6 @@ enum {
};
static int ftrace_filtered;
-static int tracing_on;
static LIST_HEAD(ftrace_new_addrs);
@@ -506,13 +505,10 @@ static int __ftrace_modify_code(void *data)
{
int *command = data;
- if (*command & FTRACE_ENABLE_CALLS) {
+ if (*command & FTRACE_ENABLE_CALLS)
ftrace_replace_code(1);
- tracing_on = 1;
- } else if (*command & FTRACE_DISABLE_CALLS) {
+ else if (*command & FTRACE_DISABLE_CALLS)
ftrace_replace_code(0);
- tracing_on = 0;
- }
if (*command & FTRACE_UPDATE_TRACE_FUNC)
ftrace_update_ftrace_func(ftrace_trace_function);
@@ -677,7 +673,7 @@ static int __init ftrace_dyn_table_alloc(unsigned long num_to_init)
cnt = num_to_init / ENTRIES_PER_PAGE;
pr_info("ftrace: allocating %ld entries in %d pages\n",
- num_to_init, cnt);
+ num_to_init, cnt + 1);
for (i = 0; i < cnt; i++) {
pg->next = (void *)get_zeroed_page(GFP_KERNEL);
@@ -757,13 +753,11 @@ static void *t_start(struct seq_file *m, loff_t *pos)
void *p = NULL;
loff_t l = -1;
- if (*pos != iter->pos) {
- for (p = t_next(m, p, &l); p && l < *pos; p = t_next(m, p, &l))
- ;
- } else {
- l = *pos;
- p = t_next(m, p, &l);
- }
+ if (*pos > iter->pos)
+ *pos = iter->pos;
+
+ l = *pos;
+ p = t_next(m, p, &l);
return p;
}
@@ -774,15 +768,21 @@ static void t_stop(struct seq_file *m, void *p)
static int t_show(struct seq_file *m, void *v)
{
+ struct ftrace_iterator *iter = m->private;
struct dyn_ftrace *rec = v;
char str[KSYM_SYMBOL_LEN];
+ int ret = 0;
if (!rec)
return 0;
kallsyms_lookup(rec->ip, NULL, NULL, NULL, str);
- seq_printf(m, "%s\n", str);
+ ret = seq_printf(m, "%s\n", str);
+ if (ret < 0) {
+ iter->pos--;
+ iter->idx--;
+ }
return 0;
}
@@ -808,7 +808,7 @@ ftrace_avail_open(struct inode *inode, struct file *file)
return -ENOMEM;
iter->pg = ftrace_pages_start;
- iter->pos = -1;
+ iter->pos = 0;
ret = seq_open(file, &show_ftrace_seq_ops);
if (!ret) {
@@ -895,7 +895,7 @@ ftrace_regex_open(struct inode *inode, struct file *file, int enable)
if (file->f_mode & FMODE_READ) {
iter->pg = ftrace_pages_start;
- iter->pos = -1;
+ iter->pos = 0;
iter->flags = enable ? FTRACE_ITER_FILTER :
FTRACE_ITER_NOTRACE;
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index 2f76193c348..036456cbb4f 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -16,14 +16,49 @@
#include <linux/list.h>
#include <linux/fs.h>
+#include "trace.h"
+
+/* Global flag to disable all recording to ring buffers */
+static int ring_buffers_off __read_mostly;
+
+/**
+ * tracing_on - enable all tracing buffers
+ *
+ * This function enables all tracing buffers that may have been
+ * disabled with tracing_off.
+ */
+void tracing_on(void)
+{
+ ring_buffers_off = 0;
+}
+
+/**
+ * tracing_off - turn off all tracing buffers
+ *
+ * This function stops all tracing buffers from recording data.
+ * It does not disable any overhead the tracers themselves may
+ * be causing. This function simply causes all recording to
+ * the ring buffers to fail.
+ */
+void tracing_off(void)
+{
+ ring_buffers_off = 1;
+}
+
/* Up this if you want to test the TIME_EXTENTS and normalization */
#define DEBUG_SHIFT 0
/* FIXME!!! */
u64 ring_buffer_time_stamp(int cpu)
{
+ u64 time;
+
+ preempt_disable_notrace();
/* shift to debug/test normalization and TIME_EXTENTS */
- return sched_clock() << DEBUG_SHIFT;
+ time = sched_clock() << DEBUG_SHIFT;
+ preempt_enable_notrace();
+
+ return time;
}
void ring_buffer_normalize_time_stamp(int cpu, u64 *ts)
@@ -503,6 +538,12 @@ int ring_buffer_resize(struct ring_buffer *buffer, unsigned long size)
LIST_HEAD(pages);
int i, cpu;
+ /*
+ * Always succeed at resizing a non-existent buffer:
+ */
+ if (!buffer)
+ return size;
+
size = DIV_ROUND_UP(size, BUF_PAGE_SIZE);
size *= BUF_PAGE_SIZE;
buffer_size = buffer->pages * BUF_PAGE_SIZE;
@@ -1133,6 +1174,9 @@ ring_buffer_lock_reserve(struct ring_buffer *buffer,
struct ring_buffer_event *event;
int cpu, resched;
+ if (ring_buffers_off)
+ return NULL;
+
if (atomic_read(&buffer->record_disabled))
return NULL;
@@ -1249,6 +1293,9 @@ int ring_buffer_write(struct ring_buffer *buffer,
int ret = -EBUSY;
int cpu, resched;
+ if (ring_buffers_off)
+ return -EBUSY;
+
if (atomic_read(&buffer->record_disabled))
return -EBUSY;
@@ -2070,3 +2117,69 @@ int ring_buffer_swap_cpu(struct ring_buffer *buffer_a,
return 0;
}
+static ssize_t
+rb_simple_read(struct file *filp, char __user *ubuf,
+ size_t cnt, loff_t *ppos)
+{
+ int *p = filp->private_data;
+ char buf[64];
+ int r;
+
+ /* !ring_buffers_off == tracing_on */
+ r = sprintf(buf, "%d\n", !*p);
+
+ return simple_read_from_buffer(ubuf, cnt, ppos, buf, r);
+}
+
+static ssize_t
+rb_simple_write(struct file *filp, const char __user *ubuf,
+ size_t cnt, loff_t *ppos)
+{
+ int *p = filp->private_data;
+ char buf[64];
+ long val;
+ int ret;
+
+ if (cnt >= sizeof(buf))
+ return -EINVAL;
+
+ if (copy_from_user(&buf, ubuf, cnt))
+ return -EFAULT;
+
+ buf[cnt] = 0;
+
+ ret = strict_strtoul(buf, 10, &val);
+ if (ret < 0)
+ return ret;
+
+ /* !ring_buffers_off == tracing_on */
+ *p = !val;
+
+ (*ppos)++;
+
+ return cnt;
+}
+
+static struct file_operations rb_simple_fops = {
+ .open = tracing_open_generic,
+ .read = rb_simple_read,
+ .write = rb_simple_write,
+};
+
+
+static __init int rb_init_debugfs(void)
+{
+ struct dentry *d_tracer;
+ struct dentry *entry;
+
+ d_tracer = tracing_init_dentry();
+
+ entry = debugfs_create_file("tracing_on", 0644, d_tracer,
+ &ring_buffers_off, &rb_simple_fops);
+ if (!entry)
+ pr_warning("Could not create debugfs 'tracing_on' entry\n");
+
+ return 0;
+}
+
+fs_initcall(rb_init_debugfs);
diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index 78330c37a61..5f6c629a924 100644
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c
@@ -467,9 +467,13 @@ swiotlb_alloc_coherent(struct device *hwdev, size_t size,
dma_addr_t dev_addr;
void *ret;
int order = get_order(size);
+ u64 dma_mask = DMA_32BIT_MASK;
+
+ if (hwdev && hwdev->coherent_dma_mask)
+ dma_mask = hwdev->coherent_dma_mask;
ret = (void *)__get_free_pages(flags, order);
- if (ret && address_needs_mapping(hwdev, virt_to_bus(ret), size)) {
+ if (ret && !is_buffer_dma_capable(dma_mask, virt_to_bus(ret), size)) {
/*
* The allocated memory isn't reachable by the device.
* Fall back on swiotlb_map_single().
@@ -493,9 +497,9 @@ swiotlb_alloc_coherent(struct device *hwdev, size_t size,
dev_addr = virt_to_bus(ret);
/* Confirm address can be DMA'd by device */
- if (address_needs_mapping(hwdev, dev_addr, size)) {
+ if (!is_buffer_dma_capable(dma_mask, dev_addr, size)) {
printk("hwdev DMA mask = 0x%016Lx, dev_addr = 0x%016Lx\n",
- (unsigned long long)*hwdev->dma_mask,
+ (unsigned long long)dma_mask,
(unsigned long long)dev_addr);
/* DMA_TO_DEVICE to avoid memcpy in unmap_single */
diff --git a/sound/pci/hda/hda_beep.c b/sound/pci/hda/hda_beep.c
index 9b77b3e0fa9..3ecd7e797de 100644
--- a/sound/pci/hda/hda_beep.c
+++ b/sound/pci/hda/hda_beep.c
@@ -37,6 +37,9 @@ static void snd_hda_generate_beep(struct work_struct *work)
container_of(work, struct hda_beep, beep_work);
struct hda_codec *codec = beep->codec;
+ if (!beep->enabled)
+ return;
+
/* generate tone */
snd_hda_codec_write_cache(codec, beep->nid, 0,
AC_VERB_SET_BEEP_CONTROL, beep->tone);
@@ -85,6 +88,10 @@ int snd_hda_attach_beep_device(struct hda_codec *codec, int nid)
snprintf(beep->phys, sizeof(beep->phys),
"card%d/codec#%d/beep0", codec->bus->card->number, codec->addr);
input_dev = input_allocate_device();
+ if (!input_dev) {
+ kfree(beep);
+ return -ENOMEM;
+ }
/* setup digital beep device */
input_dev->name = "HDA Digital PCBeep";
@@ -115,6 +122,7 @@ int snd_hda_attach_beep_device(struct hda_codec *codec, int nid)
beep->nid = nid;
beep->dev = input_dev;
beep->codec = codec;
+ beep->enabled = 1;
codec->beep = beep;
INIT_WORK(&beep->beep_work, &snd_hda_generate_beep);
diff --git a/sound/pci/hda/hda_beep.h b/sound/pci/hda/hda_beep.h
index de4036e6e71..b9679f081ca 100644
--- a/sound/pci/hda/hda_beep.h
+++ b/sound/pci/hda/hda_beep.h
@@ -31,6 +31,7 @@ struct hda_beep {
char phys[32];
int tone;
int nid;
+ int enabled;
struct work_struct beep_work; /* scheduled task for beep event */
};
diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index 4300a679cd8..9563b5bbb27 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -36,9 +36,11 @@
#include "hda_beep.h"
#define NUM_CONTROL_ALLOC 32
+
+#define STAC_VREF_EVENT 0x00
+#define STAC_INSERT_EVENT 0x10
#define STAC_PWR_EVENT 0x20
#define STAC_HP_EVENT 0x30
-#define STAC_VREF_EVENT 0x40
enum {
STAC_REF,
@@ -1686,6 +1688,10 @@ static struct snd_pci_quirk stac92hd71bxx_cfg_tbl[] = {
/* SigmaTel reference board */
SND_PCI_QUIRK(PCI_VENDOR_ID_INTEL, 0x2668,
"DFI LanParty", STAC_92HD71BXX_REF),
+ SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x30f2,
+ "HP dv5", STAC_HP_M4),
+ SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x30f4,
+ "HP dv7", STAC_HP_M4),
SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x361a,
"unknown HP", STAC_HP_M4),
SND_PCI_QUIRK(PCI_VENDOR_ID_DELL, 0x0233,
@@ -2587,8 +2593,10 @@ static struct snd_kcontrol_new stac92xx_control_templates[] = {
};
/* add dynamic controls */
-static int stac92xx_add_control_idx(struct sigmatel_spec *spec, int type,
- int idx, const char *name, unsigned long val)
+static int stac92xx_add_control_temp(struct sigmatel_spec *spec,
+ struct snd_kcontrol_new *ktemp,
+ int idx, const char *name,
+ unsigned long val)
{
struct snd_kcontrol_new *knew;
@@ -2607,20 +2615,29 @@ static int stac92xx_add_control_idx(struct sigmatel_spec *spec, int type,
}
knew = &spec->kctl_alloc[spec->num_kctl_used];
- *knew = stac92xx_control_templates[type];
+ *knew = *ktemp;
knew->index = idx;
knew->name = kstrdup(name, GFP_KERNEL);
- if (! knew->name)
+ if (!knew->name)
return -ENOMEM;
knew->private_value = val;
spec->num_kctl_used++;
return 0;
}
+static inline int stac92xx_add_control_idx(struct sigmatel_spec *spec,
+ int type, int idx, const char *name,
+ unsigned long val)
+{
+ return stac92xx_add_control_temp(spec,
+ &stac92xx_control_templates[type],
+ idx, name, val);
+}
+
/* add dynamic controls */
-static int stac92xx_add_control(struct sigmatel_spec *spec, int type,
- const char *name, unsigned long val)
+static inline int stac92xx_add_control(struct sigmatel_spec *spec, int type,
+ const char *name, unsigned long val)
{
return stac92xx_add_control_idx(spec, type, 0, name, val);
}
@@ -3062,6 +3079,43 @@ static int stac92xx_auto_create_beep_ctls(struct hda_codec *codec,
return 0;
}
+#ifdef CONFIG_SND_HDA_INPUT_BEEP
+#define stac92xx_dig_beep_switch_info snd_ctl_boolean_mono_info
+
+static int stac92xx_dig_beep_switch_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
+ ucontrol->value.integer.value[0] = codec->beep->enabled;
+ return 0;
+}
+
+static int stac92xx_dig_beep_switch_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
+ int enabled = !!ucontrol->value.integer.value[0];
+ if (codec->beep->enabled != enabled) {
+ codec->beep->enabled = enabled;
+ return 1;
+ }
+ return 0;
+}
+
+static struct snd_kcontrol_new stac92xx_dig_beep_ctrl = {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .info = stac92xx_dig_beep_switch_info,
+ .get = stac92xx_dig_beep_switch_get,
+ .put = stac92xx_dig_beep_switch_put,
+};
+
+static int stac92xx_beep_switch_ctl(struct hda_codec *codec)
+{
+ return stac92xx_add_control_temp(codec->spec, &stac92xx_dig_beep_ctrl,
+ 0, "PC Beep Playback Switch", 0);
+}
+#endif
+
static int stac92xx_auto_create_mux_input_ctls(struct hda_codec *codec)
{
struct sigmatel_spec *spec = codec->spec;
@@ -3368,6 +3422,7 @@ static int stac92xx_parse_auto_config(struct hda_codec *codec, hda_nid_t dig_out
#ifdef CONFIG_SND_HDA_INPUT_BEEP
if (spec->digbeep_nid > 0) {
hda_nid_t nid = spec->digbeep_nid;
+ unsigned int caps;
err = stac92xx_auto_create_beep_ctls(codec, nid);
if (err < 0)
@@ -3375,6 +3430,14 @@ static int stac92xx_parse_auto_config(struct hda_codec *codec, hda_nid_t dig_out
err = snd_hda_attach_beep_device(codec, nid);
if (err < 0)
return err;
+ /* if no beep switch is available, make its own one */
+ caps = query_amp_caps(codec, nid, HDA_OUTPUT);
+ if (codec->beep &&
+ !((caps & AC_AMPCAP_MUTE) >> AC_AMPCAP_MUTE_SHIFT)) {
+ err = stac92xx_beep_switch_ctl(codec);
+ if (err < 0)
+ return err;
+ }
}
#endif
@@ -4419,6 +4482,13 @@ again:
stac92xx_set_config_regs(codec);
}
+ if (spec->board_config > STAC_92HD71BXX_REF) {
+ /* GPIO0 = EAPD */
+ spec->gpio_mask = 0x01;
+ spec->gpio_dir = 0x01;
+ spec->gpio_data = 0x01;
+ }
+
switch (codec->vendor_id) {
case 0x111d76b6: /* 4 Port without Analog Mixer */
case 0x111d76b7:
@@ -4429,10 +4499,10 @@ again:
codec->slave_dig_outs = stac92hd71bxx_slave_dig_outs;
break;
case 0x111d7608: /* 5 Port with Analog Mixer */
- switch (codec->subsystem_id) {
- case 0x103c361a:
+ switch (spec->board_config) {
+ case STAC_HP_M4:
/* Enable VREF power saving on GPIO1 detect */
- snd_hda_codec_write(codec, codec->afg, 0,
+ snd_hda_codec_write_cache(codec, codec->afg, 0,
AC_VERB_SET_GPIO_UNSOLICITED_RSP_MASK, 0x02);
snd_hda_codec_write_cache(codec, codec->afg, 0,
AC_VERB_SET_UNSOLICITED_ENABLE,
@@ -4478,13 +4548,6 @@ again:
spec->aloopback_mask = 0x50;
spec->aloopback_shift = 0;
- if (spec->board_config > STAC_92HD71BXX_REF) {
- /* GPIO0 = EAPD */
- spec->gpio_mask = 0x01;
- spec->gpio_dir = 0x01;
- spec->gpio_data = 0x01;
- }
-
spec->powerdown_adcs = 1;
spec->digbeep_nid = 0x26;
spec->mux_nids = stac92hd71bxx_mux_nids;
@@ -4832,7 +4895,7 @@ static int patch_stac9205(struct hda_codec *codec)
stac92xx_set_config_reg(codec, 0x20, 0x1c410030);
/* Enable unsol response for GPIO4/Dock HP connection */
- snd_hda_codec_write(codec, codec->afg, 0,
+ snd_hda_codec_write_cache(codec, codec->afg, 0,
AC_VERB_SET_GPIO_UNSOLICITED_RSP_MASK, 0x10);
snd_hda_codec_write_cache(codec, codec->afg, 0,
AC_VERB_SET_UNSOLICITED_ENABLE,
diff --git a/sound/pci/pcxhr/pcxhr.c b/sound/pci/pcxhr/pcxhr.c
index 0e06c6c9fcc..73de6e989b3 100644
--- a/sound/pci/pcxhr/pcxhr.c
+++ b/sound/pci/pcxhr/pcxhr.c
@@ -1229,8 +1229,11 @@ static int __devinit pcxhr_probe(struct pci_dev *pci, const struct pci_device_id
return -ENOMEM;
}
- if (snd_BUG_ON(pci_id->driver_data >= PCI_ID_LAST))
+ if (snd_BUG_ON(pci_id->driver_data >= PCI_ID_LAST)) {
+ kfree(mgr);
+ pci_disable_device(pci);
return -ENODEV;
+ }
card_name = pcxhr_board_params[pci_id->driver_data].board_name;
mgr->playback_chips = pcxhr_board_params[pci_id->driver_data].playback_chips;
mgr->capture_chips = pcxhr_board_params[pci_id->driver_data].capture_chips;