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-rw-r--r--include/linux/dmapool.h8
1 files changed, 8 insertions, 0 deletions
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)
{