diff options
| -rw-r--r-- | Documentation/core-api/mm-api.rst | 2 | ||||
| -rw-r--r-- | include/linux/dmapool.h | 8 |
2 files changed, 10 insertions, 0 deletions
diff --git a/Documentation/core-api/mm-api.rst b/Documentation/core-api/mm-api.rst index af8151db88b2..a61766328ac0 100644 --- a/Documentation/core-api/mm-api.rst +++ b/Documentation/core-api/mm-api.rst @@ -97,6 +97,8 @@ DMA pools .. kernel-doc:: mm/dmapool.c :export: +.. kernel-doc:: include/linux/dmapool.h + More Memory Management Functions ================================ diff --git a/include/linux/dmapool.h b/include/linux/dmapool.h index 06c4de602b2f..7d40b51933d1 100644 --- a/include/linux/dmapool.h +++ b/include/linux/dmapool.h @@ -60,6 +60,14 @@ static inline struct dma_pool *dma_pool_create(const char *name, NUMA_NO_NODE); } +/** + * dma_pool_zalloc - Get a zero-initialized block of DMA coherent memory. + * @pool: dma pool that will produce the block + * @mem_flags: GFP_* bitmask + * @handle: pointer to dma address of block + * + * Same as dma_pool_alloc(), but the returned memory is zeroed. + */ static inline void *dma_pool_zalloc(struct dma_pool *pool, gfp_t mem_flags, dma_addr_t *handle) { |