From: Andi Kleen <ak@suse.de>
Date: Mon, 15 May 2006 16:19:38 +0000 (+0200)
Subject: [PATCH] x86_64: Don't warn for overflow in nommu case when dma_mask is < 32bit
X-Git-Tag: v2.6.17-rc5~116
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f0fdabf8bf187c9aafeb139a828c530ef45cf022;p=pandora-kernel.git

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

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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