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| author | Ralf Baechle <ralf@linux-mips.org> | 2006-12-06 20:38:54 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.osdl.org> | 2006-12-07 08:39:41 -0800 |
| commit | f67637ee4b5d90d41160d755b9a8cca18c394586 (patch) | |
| tree | dffa1fa32f8e0462c8e46c4f8fefa058be349d6a /Documentation/DMA-API.txt | |
| parent | 83b7b44e1c1e9e493ccd4146558481ab5af0116a (diff) | |
| download | lwn-f67637ee4b5d90d41160d755b9a8cca18c394586.tar.gz lwn-f67637ee4b5d90d41160d755b9a8cca18c394586.zip | |
[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.txt | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/Documentation/DMA-API.txt b/Documentation/DMA-API.txt index 8621a064f7e1..3dc1f9125caf 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) |