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authorThomas Bogendoerfer <tsbogend@alpha.franken.de>2008-11-29 13:46:27 +0100
committerIngo Molnar <mingo@elte.hu>2008-11-29 21:00:38 +0100
commit7b1dedca42ac0d0d0be01e39d8461bb53a2389b3 (patch)
tree2a2d2d37002a7614ceff8065fb362c4a820f5a1c /arch/x86/include/asm/mpspec.h
parentx86: always define DECLARE_PCI_UNMAP* macros (diff)
downloadlinux-7b1dedca42ac0d0d0be01e39d8461bb53a2389b3.tar.xz
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x86: fix dma_mapping_error for 32bit x86
Devices like b44 ethernet can't dma from addresses above 1GB. The driver handles this cases by falling back to GFP_DMA allocation. But for detecting the problem it needs to get an indication from dma_mapping_error. The bug is triggered by using a VMSPLIT option of 2G/2G. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Acked-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/include/asm/mpspec.h')
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