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authorRalf Baechle <ralf@linux-mips.org>2006-12-06 20:38:54 -0800
committerLinus Torvalds <torvalds@woody.osdl.org>2006-12-07 08:39:41 -0800
commitf67637ee4b5d90d41160d755b9a8cca18c394586 (patch)
treedffa1fa32f8e0462c8e46c4f8fefa058be349d6a /Documentation/DMA-API.txt
parent83b7b44e1c1e9e493ccd4146558481ab5af0116a (diff)
downloadlinux-f67637ee4b5d90d41160d755b9a8cca18c394586.tar.gz
[PATCH] Add struct dev pointer to dma_is_consistent()
dma_is_consistent() is ill-designed in that it does not have a struct device pointer argument which makes proper support for systems that consist of a mix of coherent and non-coherent DMA devices hard. Change dma_is_consistent to take a struct device pointer as first argument and fix the sole caller to pass it. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'Documentation/DMA-API.txt')
-rw-r--r--Documentation/DMA-API.txt6
1 files changed, 3 insertions, 3 deletions
diff --git a/Documentation/DMA-API.txt b/Documentation/DMA-API.txt
index 8621a064f7e..3dc1f9125ca 100644
--- a/Documentation/DMA-API.txt
+++ b/Documentation/DMA-API.txt
@@ -431,10 +431,10 @@ be identical to those passed in (and returned by
dma_alloc_noncoherent()).
int
-dma_is_consistent(dma_addr_t dma_handle)
+dma_is_consistent(struct device *dev, dma_addr_t dma_handle)
-returns true if the memory pointed to by the dma_handle is actually
-consistent.
+returns true if the device dev is performing consistent DMA on the memory
+area pointed to by the dma_handle.
int
dma_get_cache_alignment(void)