[PATCH] x86_64: Don't warn for overflow in nommu case when dma_mask is < 32bit

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This triggers for b44's 1GB DMA workaround which tries to map
first and then bounces.

The 32bit heuristic is reasonable because the IOMMU doesn't attempt
to handle < 32bit masks anyways.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

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Andi Kleen 2006-05-15 18:19:38 +02:00 • committed by Linus Torvalds

parent 639b421b91

commit f0fdabf8bf

1 changed files with 4 additions and 3 deletions

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7

arch/x86_64/kernel/pci-nommu.c

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