This commit was manufactured by cvs2svn to create tag

[linux-2.6.git] / Documentation / DMA-API.txt

diff --git a/Documentation/DMA-API.txt b/Documentation/DMA-API.txt
index 11caa2d..2c1bd6a 100644 (file)
--- 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
 --------------------------------