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author | David S. Miller <davem@davemloft.net> | 2008-10-11 19:39:35 (GMT) |
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committer | David S. Miller <davem@davemloft.net> | 2008-10-11 19:39:35 (GMT) |
commit | 56c5d900dbb8e042bfad035d18433476931d8f93 (patch) | |
tree | 00b793965beeef10db03e0ff021d2d965c410759 /sound/core/memalloc.c | |
parent | 4dd95b63ae25c5cad6986829b5e8788e9faa0330 (diff) | |
parent | ead9d23d803ea3a73766c3cb27bf7563ac8d7266 (diff) | |
download | linux-56c5d900dbb8e042bfad035d18433476931d8f93.tar.xz |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
sound/core/memalloc.c
Diffstat (limited to 'sound/core/memalloc.c')
-rw-r--r-- | sound/core/memalloc.c | 52 |
1 files changed, 20 insertions, 32 deletions
diff --git a/sound/core/memalloc.c b/sound/core/memalloc.c index 3733351..1b3534d 100644 --- a/sound/core/memalloc.c +++ b/sound/core/memalloc.c @@ -43,14 +43,6 @@ MODULE_LICENSE("GPL"); /* */ -void *snd_malloc_sgbuf_pages(struct device *device, - size_t size, struct snd_dma_buffer *dmab, - size_t *res_size); -int snd_free_sgbuf_pages(struct snd_dma_buffer *dmab); - -/* - */ - static DEFINE_MUTEX(list_mutex); static LIST_HEAD(mem_list_head); @@ -64,18 +56,6 @@ struct snd_mem_list { /* id for pre-allocated buffers */ #define SNDRV_DMA_DEVICE_UNUSED (unsigned int)-1 -#ifdef CONFIG_SND_DEBUG -#define __ASTRING__(x) #x -#define snd_assert(expr, args...) do {\ - if (!(expr)) {\ - printk(KERN_ERR "snd-malloc: BUG? (%s) (called from %p)\n", __ASTRING__(expr), __builtin_return_address(0));\ - args;\ - }\ -} while (0) -#else -#define snd_assert(expr, args...) /**/ -#endif - /* * * Generic memory allocators @@ -108,8 +88,10 @@ void *snd_malloc_pages(size_t size, gfp_t gfp_flags) int pg; void *res; - snd_assert(size > 0, return NULL); - snd_assert(gfp_flags != 0, return NULL); + if (WARN_ON(!size)) + return NULL; + if (WARN_ON(!gfp_flags)) + return NULL; gfp_flags |= __GFP_COMP; /* compound page lets parts be mapped */ pg = get_order(size); if ((res = (void *) __get_free_pages(gfp_flags, pg)) != NULL) @@ -149,8 +131,8 @@ static void *snd_malloc_dev_pages(struct device *dev, size_t size, dma_addr_t *d void *res; gfp_t gfp_flags; - snd_assert(size > 0, return NULL); - snd_assert(dma != NULL, return NULL); + if (WARN_ON(!dma)) + return NULL; pg = get_order(size); gfp_flags = GFP_KERNEL | __GFP_COMP /* compound page lets parts be mapped */ @@ -200,8 +182,10 @@ static void snd_free_dev_pages(struct device *dev, size_t size, void *ptr, int snd_dma_alloc_pages(int type, struct device *device, size_t size, struct snd_dma_buffer *dmab) { - snd_assert(size > 0, return -ENXIO); - snd_assert(dmab != NULL, return -ENXIO); + if (WARN_ON(!size)) + return -ENXIO; + if (WARN_ON(!dmab)) + return -ENXIO; dmab->dev.type = type; dmab->dev.dev = device; @@ -251,15 +235,17 @@ int snd_dma_alloc_pages_fallback(int type, struct device *device, size_t size, { int err; - snd_assert(size > 0, return -ENXIO); - snd_assert(dmab != NULL, return -ENXIO); - while ((err = snd_dma_alloc_pages(type, device, size, dmab)) < 0) { + size_t aligned_size; if (err != -ENOMEM) return err; - size >>= 1; if (size <= PAGE_SIZE) return -ENOMEM; + aligned_size = PAGE_SIZE << get_order(size); + if (size != aligned_size) + size = aligned_size; + else + size >>= 1; } if (! dmab->area) return -ENOMEM; @@ -307,7 +293,8 @@ size_t snd_dma_get_reserved_buf(struct snd_dma_buffer *dmab, unsigned int id) { struct snd_mem_list *mem; - snd_assert(dmab, return 0); + if (WARN_ON(!dmab)) + return 0; mutex_lock(&list_mutex); list_for_each_entry(mem, &mem_list_head, list) { @@ -341,7 +328,8 @@ int snd_dma_reserve_buf(struct snd_dma_buffer *dmab, unsigned int id) { struct snd_mem_list *mem; - snd_assert(dmab, return -EINVAL); + if (WARN_ON(!dmab)) + return -EINVAL; mem = kmalloc(sizeof(*mem), GFP_KERNEL); if (! mem) return -ENOMEM; |