X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=Documentation%2FDMA-API.txt;h=edccacd4f048a13e8afdb63db7d98ad41667a503;hb=700318d1d7b38bbfe86813d9c5c18364dd941526;hp=7eba542eff7c8317d0da92ea4b638076b4f0f996;hpb=d8132e08d25a47e2d5156aa2268cd1cd9b0d6c0d;p=firefly-linux-kernel-4.4.55.git

diff --git a/Documentation/DMA-API.txt b/Documentation/DMA-API.txt
index 7eba542eff7c..edccacd4f048 100644
--- a/Documentation/DMA-API.txt
+++ b/Documentation/DMA-API.txt
@@ -104,6 +104,13 @@ crossing restrictions, pass 0 for alloc; passing 4096 says memory allocated
 from this pool must not cross 4KByte boundaries.
 
 
+	void *dma_pool_zalloc(struct dma_pool *pool, gfp_t mem_flags,
+			      dma_addr_t *handle)
+
+Wraps dma_pool_alloc() and also zeroes the returned memory if the
+allocation attempt succeeded.
+
+
 	void *dma_pool_alloc(struct dma_pool *pool, gfp_t gfp_flags,
 			dma_addr_t *dma_handle);