x86: fix dma_mapping_error for 32bit x86, cleanup
authorFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Mon, 1 Dec 2008 17:17:15 +0000 (02:17 +0900)
committerIngo Molnar <mingo@elte.hu>
Mon, 1 Dec 2008 19:36:17 +0000 (20:36 +0100)
commit50cec5c51c18301ff60262fdbe920f4a907c9d81
treecb913edb32faf80bf5bfaa9c69d3ca42141c5c15
parentf6d2e6f57bba66272b28dd20c949b14ce39cb804
x86: fix dma_mapping_error for 32bit x86, cleanup

This removes ifdef CONFIG_X86_64 in dma_mapping_error():

1) Xen people plan to use swiotlb on X86_32 for Dom0 support. swiotlb
   uses ops->mapping_error so X86_32 also needs to check
   ops->mapping_error.

2) Removing #ifdef hack is almost always a good thing.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
arch/x86/include/asm/dma-mapping.h