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[PATCH] Move valid_dma_direction() from x86_64 to generic code

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As suggested by Muli Ben-Yehuda this function is moved to generic code as
may be useful for all archs.

[akpm@osdl.org: fix]
Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
Cc: Muli Ben-Yehuda <muli@il.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Rolf Eike Beer
2006-09-29 01:59:48 -07:00
committed by Linus Torvalds
parent d09d7ddf30
commit d6bd3a39f7
5 changed files with 11 additions and 11 deletions
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7
include/linux/dma-mapping.h
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@@ -24,6 +24,13 @@ enum dma_data_direction {
#define DMA_28BIT_MASK 0x000000000fffffffULL
#define DMA_24BIT_MASK 0x0000000000ffffffULL
static inline int valid_dma_direction(int dma_direction)
{
return ((dma_direction == DMA_BIDIRECTIONAL) ||
(dma_direction == DMA_TO_DEVICE) ||
(dma_direction == DMA_FROM_DEVICE));
}
#include <asm/dma-mapping.h>
/* Backwards compat, remove in 2.7.x */