X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=Documentation%2FDMA-API.txt;h=2c1bd6a83fafc6ba92eb0077af83f4e9dac3b1e7;hb=f9296eb00ed30209424102d3c920e69617eea853;hp=11caa2d64c013b405bd56f3a44382a656e62da47;hpb=a91482bdcc2e0f6035702e46f1b99043a0893346;p=linux-2.6.git

diff --git a/Documentation/DMA-API.txt b/Documentation/DMA-API.txt
index 11caa2d64..2c1bd6a83 100644
--- a/Documentation/DMA-API.txt
+++ b/Documentation/DMA-API.txt
@@ -162,20 +162,6 @@ parameters if it is.
 
 Returns: 1 if successful and 0 if not
 
-u64
-dma_get_required_mask(struct device *dev)
-
-After setting the mask with dma_set_mask(), this API returns the
-actual mask (within that already set) that the platform actually
-requires to operate efficiently.  Usually this means the returned mask
-is the minimum required to cover all of memory.  Examining the
-required mask gives drivers with variable descriptor sizes the
-opportunity to use smaller descriptors as necessary.
-
-Requesting the required mask does not alter the current mask.  If you
-wish to take advantage of it, you should issue another dma_set_mask()
-call to lower the mask again.
-
 
 Part Id - Streaming DMA mappings
 --------------------------------