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net: Fix build with ARCH=um 

If UM is going to claim that it supports DMA by setting
HAS_DMA, it should provide a dma_mapping_error() implementation.

Based upon a report by Julius Volz.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2008-09-19 12:44:54 -07:00
parent 821c92f258
commit 02a1416478
1 changed files with 7 additions and 0 deletions
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7
include/asm-um/dma-mapping.h
View File

@ -118,4 +118,11 @@ dma_cache_sync(struct device *dev, void *vaddr, size_t size,
BUG();
}
static inline int
dma_mapping_error(struct device *dev, dma_addr_t dma_handle)
{
BUG();
return 0;
}
#endif