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Diffstat (limited to 'sound/core')
-rw-r--r--sound/core/control.c23
-rw-r--r--sound/core/memalloc.c64
-rw-r--r--sound/core/pcm_native.c24
-rw-r--r--sound/core/pcm_trace.h6
-rw-r--r--sound/core/rawmidi.c2
-rw-r--r--sound/core/seq/seq_memory.c11
6 files changed, 86 insertions, 44 deletions
diff --git a/sound/core/control.c b/sound/core/control.c
index a7271927d875..50e7ba66f187 100644
--- a/sound/core/control.c
+++ b/sound/core/control.c
@@ -753,6 +753,29 @@ int snd_ctl_rename_id(struct snd_card *card, struct snd_ctl_elem_id *src_id,
}
EXPORT_SYMBOL(snd_ctl_rename_id);
+/**
+ * snd_ctl_rename - rename the control on the card
+ * @card: the card instance
+ * @kctl: the control to rename
+ * @name: the new name
+ *
+ * Renames the specified control on the card to the new name.
+ *
+ * Make sure to take the control write lock - down_write(&card->controls_rwsem).
+ */
+void snd_ctl_rename(struct snd_card *card, struct snd_kcontrol *kctl,
+ const char *name)
+{
+ remove_hash_entries(card, kctl);
+
+ if (strscpy(kctl->id.name, name, sizeof(kctl->id.name)) < 0)
+ pr_warn("ALSA: Renamed control new name '%s' truncated to '%s'\n",
+ name, kctl->id.name);
+
+ add_hash_entries(card, kctl);
+}
+EXPORT_SYMBOL(snd_ctl_rename);
+
#ifndef CONFIG_SND_CTL_FAST_LOOKUP
static struct snd_kcontrol *
snd_ctl_find_numid_slow(struct snd_card *card, unsigned int numid)
diff --git a/sound/core/memalloc.c b/sound/core/memalloc.c
index 03cffe771366..3cf5a87d69ea 100644
--- a/sound/core/memalloc.c
+++ b/sound/core/memalloc.c
@@ -9,6 +9,7 @@
#include <linux/slab.h>
#include <linux/mm.h>
#include <linux/dma-mapping.h>
+#include <linux/dma-map-ops.h>
#include <linux/genalloc.h>
#include <linux/highmem.h>
#include <linux/vmalloc.h>
@@ -20,7 +21,6 @@
#define DEFAULT_GFP \
(GFP_KERNEL | \
- __GFP_COMP | /* compound page lets parts be mapped */ \
__GFP_RETRY_MAYFAIL | /* don't trigger OOM-killer */ \
__GFP_NOWARN) /* no stack trace print - this call is non-critical */
@@ -542,18 +542,18 @@ static void *snd_dma_noncontig_alloc(struct snd_dma_buffer *dmab, size_t size)
void *p;
sgt = dma_alloc_noncontiguous(dmab->dev.dev, size, dmab->dev.dir,
- DEFAULT_GFP, 0);
- if (!sgt) {
+ DEFAULT_GFP | __GFP_COMP, 0);
#ifdef CONFIG_SND_DMA_SGBUF
+ if (!sgt && !get_dma_ops(dmab->dev.dev)) {
if (dmab->dev.type == SNDRV_DMA_TYPE_DEV_WC_SG)
dmab->dev.type = SNDRV_DMA_TYPE_DEV_WC_SG_FALLBACK;
else
dmab->dev.type = SNDRV_DMA_TYPE_DEV_SG_FALLBACK;
return snd_dma_sg_fallback_alloc(dmab, size);
-#else
- return NULL;
-#endif
}
+#endif
+ if (!sgt)
+ return NULL;
dmab->dev.need_sync = dma_need_sync(dmab->dev.dev,
sg_dma_address(sgt->sgl));
@@ -719,7 +719,6 @@ static const struct snd_malloc_ops snd_dma_sg_wc_ops = {
struct snd_dma_sg_fallback {
size_t count;
struct page **pages;
- dma_addr_t *addrs;
};
static void __snd_dma_sg_fallback_free(struct snd_dma_buffer *dmab,
@@ -731,38 +730,49 @@ static void __snd_dma_sg_fallback_free(struct snd_dma_buffer *dmab,
for (i = 0; i < sgbuf->count && sgbuf->pages[i]; i++)
do_free_pages(page_address(sgbuf->pages[i]), PAGE_SIZE, wc);
kvfree(sgbuf->pages);
- kvfree(sgbuf->addrs);
kfree(sgbuf);
}
static void *snd_dma_sg_fallback_alloc(struct snd_dma_buffer *dmab, size_t size)
{
struct snd_dma_sg_fallback *sgbuf;
- struct page **pages;
- size_t i, count;
+ struct page **pagep, *curp;
+ size_t chunk, npages;
+ dma_addr_t addr;
void *p;
bool wc = dmab->dev.type == SNDRV_DMA_TYPE_DEV_WC_SG_FALLBACK;
sgbuf = kzalloc(sizeof(*sgbuf), GFP_KERNEL);
if (!sgbuf)
return NULL;
- count = PAGE_ALIGN(size) >> PAGE_SHIFT;
- pages = kvcalloc(count, sizeof(*pages), GFP_KERNEL);
- if (!pages)
- goto error;
- sgbuf->pages = pages;
- sgbuf->addrs = kvcalloc(count, sizeof(*sgbuf->addrs), GFP_KERNEL);
- if (!sgbuf->addrs)
+ size = PAGE_ALIGN(size);
+ sgbuf->count = size >> PAGE_SHIFT;
+ sgbuf->pages = kvcalloc(sgbuf->count, sizeof(*sgbuf->pages), GFP_KERNEL);
+ if (!sgbuf->pages)
goto error;
- for (i = 0; i < count; sgbuf->count++, i++) {
- p = do_alloc_pages(dmab->dev.dev, PAGE_SIZE, &sgbuf->addrs[i], wc);
- if (!p)
- goto error;
- sgbuf->pages[i] = virt_to_page(p);
+ pagep = sgbuf->pages;
+ chunk = size;
+ while (size > 0) {
+ chunk = min(size, chunk);
+ p = do_alloc_pages(dmab->dev.dev, chunk, &addr, wc);
+ if (!p) {
+ if (chunk <= PAGE_SIZE)
+ goto error;
+ chunk >>= 1;
+ chunk = PAGE_SIZE << get_order(chunk);
+ continue;
+ }
+
+ size -= chunk;
+ /* fill pages */
+ npages = chunk >> PAGE_SHIFT;
+ curp = virt_to_page(p);
+ while (npages--)
+ *pagep++ = curp++;
}
- p = vmap(pages, count, VM_MAP, PAGE_KERNEL);
+ p = vmap(sgbuf->pages, sgbuf->count, VM_MAP, PAGE_KERNEL);
if (!p)
goto error;
dmab->private_data = sgbuf;
@@ -810,7 +820,7 @@ static void *snd_dma_noncoherent_alloc(struct snd_dma_buffer *dmab, size_t size)
void *p;
p = dma_alloc_noncoherent(dmab->dev.dev, size, &dmab->addr,
- dmab->dev.dir, DEFAULT_GFP);
+ dmab->dev.dir, DEFAULT_GFP | __GFP_COMP);
if (p)
dmab->dev.need_sync = dma_need_sync(dmab->dev.dev, dmab->addr);
return p;
@@ -857,7 +867,7 @@ static const struct snd_malloc_ops snd_dma_noncoherent_ops = {
/*
* Entry points
*/
-static const struct snd_malloc_ops *dma_ops[] = {
+static const struct snd_malloc_ops *snd_dma_ops[] = {
[SNDRV_DMA_TYPE_CONTINUOUS] = &snd_dma_continuous_ops,
[SNDRV_DMA_TYPE_VMALLOC] = &snd_dma_vmalloc_ops,
#ifdef CONFIG_HAS_DMA
@@ -883,7 +893,7 @@ static const struct snd_malloc_ops *snd_dma_get_ops(struct snd_dma_buffer *dmab)
if (WARN_ON_ONCE(!dmab))
return NULL;
if (WARN_ON_ONCE(dmab->dev.type <= SNDRV_DMA_TYPE_UNKNOWN ||
- dmab->dev.type >= ARRAY_SIZE(dma_ops)))
+ dmab->dev.type >= ARRAY_SIZE(snd_dma_ops)))
return NULL;
- return dma_ops[dmab->dev.type];
+ return snd_dma_ops[dmab->dev.type];
}
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index 33769ca78cc8..9c122e757efe 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -288,7 +288,7 @@ static int constrain_mask_params(struct snd_pcm_substream *substream,
&substream->runtime->hw_constraints;
struct snd_mask *m;
unsigned int k;
- struct snd_mask old_mask;
+ struct snd_mask old_mask __maybe_unused;
int changed;
for (k = SNDRV_PCM_HW_PARAM_FIRST_MASK; k <= SNDRV_PCM_HW_PARAM_LAST_MASK; k++) {
@@ -324,7 +324,7 @@ static int constrain_interval_params(struct snd_pcm_substream *substream,
&substream->runtime->hw_constraints;
struct snd_interval *i;
unsigned int k;
- struct snd_interval old_interval;
+ struct snd_interval old_interval __maybe_unused;
int changed;
for (k = SNDRV_PCM_HW_PARAM_FIRST_INTERVAL; k <= SNDRV_PCM_HW_PARAM_LAST_INTERVAL; k++) {
@@ -364,8 +364,8 @@ static int constrain_params_by_rules(struct snd_pcm_substream *substream,
unsigned int stamp;
struct snd_pcm_hw_rule *r;
unsigned int d;
- struct snd_mask old_mask;
- struct snd_interval old_interval;
+ struct snd_mask old_mask __maybe_unused;
+ struct snd_interval old_interval __maybe_unused;
bool again;
int changed, err = 0;
@@ -648,8 +648,8 @@ static int snd_pcm_hw_params_choose(struct snd_pcm_substream *pcm,
-1
};
const int *v;
- struct snd_mask old_mask;
- struct snd_interval old_interval;
+ struct snd_mask old_mask __maybe_unused;
+ struct snd_interval old_interval __maybe_unused;
int changed;
for (v = vars; *v != -1; v++) {
@@ -1424,16 +1424,24 @@ static int snd_pcm_pre_start(struct snd_pcm_substream *substream,
static int snd_pcm_do_start(struct snd_pcm_substream *substream,
snd_pcm_state_t state)
{
+ int err;
+
if (substream->runtime->trigger_master != substream)
return 0;
- return substream->ops->trigger(substream, SNDRV_PCM_TRIGGER_START);
+ err = substream->ops->trigger(substream, SNDRV_PCM_TRIGGER_START);
+ /* XRUN happened during the start */
+ if (err == -EPIPE)
+ __snd_pcm_set_state(substream->runtime, SNDRV_PCM_STATE_XRUN);
+ return err;
}
static void snd_pcm_undo_start(struct snd_pcm_substream *substream,
snd_pcm_state_t state)
{
- if (substream->runtime->trigger_master == substream)
+ if (substream->runtime->trigger_master == substream) {
substream->ops->trigger(substream, SNDRV_PCM_TRIGGER_STOP);
+ substream->runtime->stop_operating = true;
+ }
}
static void snd_pcm_post_start(struct snd_pcm_substream *substream,
diff --git a/sound/core/pcm_trace.h b/sound/core/pcm_trace.h
index f18da2050772..350b40b906ca 100644
--- a/sound/core/pcm_trace.h
+++ b/sound/core/pcm_trace.h
@@ -88,19 +88,19 @@ TRACE_EVENT(hw_ptr_error,
__field( unsigned int, device )
__field( unsigned int, number )
__field( unsigned int, stream )
- __field( const char *, reason )
+ __string( reason, why )
),
TP_fast_assign(
__entry->card = (substream)->pcm->card->number;
__entry->device = (substream)->pcm->device;
__entry->number = (substream)->number;
__entry->stream = (substream)->stream;
- __entry->reason = (why);
+ __assign_str(reason, why);
),
TP_printk("pcmC%dD%d%s/sub%d: ERROR: %s",
__entry->card, __entry->device,
__entry->stream == SNDRV_PCM_STREAM_PLAYBACK ? "p" : "c",
- __entry->number, __entry->reason)
+ __entry->number, __get_str(reason))
);
TRACE_EVENT(applptr,
diff --git a/sound/core/rawmidi.c b/sound/core/rawmidi.c
index d8edb6055072..7147fda66d93 100644
--- a/sound/core/rawmidi.c
+++ b/sound/core/rawmidi.c
@@ -1050,7 +1050,6 @@ static int receive_with_tstamp_framing(struct snd_rawmidi_substream *substream,
struct snd_rawmidi_runtime *runtime = substream->runtime;
struct snd_rawmidi_framing_tstamp *dest_ptr;
struct snd_rawmidi_framing_tstamp frame = { .tv_sec = tstamp->tv_sec, .tv_nsec = tstamp->tv_nsec };
- int dest_frames = 0;
int orig_count = src_count;
int frame_size = sizeof(struct snd_rawmidi_framing_tstamp);
@@ -1077,7 +1076,6 @@ static int receive_with_tstamp_framing(struct snd_rawmidi_substream *substream,
runtime->avail += frame_size;
runtime->hw_ptr += frame_size;
runtime->hw_ptr %= runtime->buffer_size;
- dest_frames++;
}
return orig_count - src_count;
}
diff --git a/sound/core/seq/seq_memory.c b/sound/core/seq/seq_memory.c
index b7aee23fc387..47ef6bc30c0e 100644
--- a/sound/core/seq/seq_memory.c
+++ b/sound/core/seq/seq_memory.c
@@ -113,15 +113,19 @@ EXPORT_SYMBOL(snd_seq_dump_var_event);
* expand the variable length event to linear buffer space.
*/
-static int seq_copy_in_kernel(char **bufptr, const void *src, int size)
+static int seq_copy_in_kernel(void *ptr, void *src, int size)
{
+ char **bufptr = ptr;
+
memcpy(*bufptr, src, size);
*bufptr += size;
return 0;
}
-static int seq_copy_in_user(char __user **bufptr, const void *src, int size)
+static int seq_copy_in_user(void *ptr, void *src, int size)
{
+ char __user **bufptr = ptr;
+
if (copy_to_user(*bufptr, src, size))
return -EFAULT;
*bufptr += size;
@@ -151,8 +155,7 @@ int snd_seq_expand_var_event(const struct snd_seq_event *event, int count, char
return newlen;
}
err = snd_seq_dump_var_event(event,
- in_kernel ? (snd_seq_dump_func_t)seq_copy_in_kernel :
- (snd_seq_dump_func_t)seq_copy_in_user,
+ in_kernel ? seq_copy_in_kernel : seq_copy_in_user,
&buf);
return err < 0 ? err : newlen;
}
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