From: Joerg Roedel <joerg.roedel@amd.com>
Date: Mon, 23 Mar 2009 14:35:08 +0000 (+0100)
Subject: dma-debug: make memory range checks more consistent
X-Git-Tag: v2.6.30-rc1~614^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9537a48ed4b9e4b738943d6da0a0fd4278adf905;p=pandora-kernel.git

dma-debug: make memory range checks more consistent

Impact: extend on-kernel-stack DMA debug checks to all !highmem pages

We only checked dma_map_single() - extend it to dma_map_page()
and dma_map_sg() as well.

Also, fix dma_map_single() corner case bug: make sure we dont
stack-check highmem (not mapped) pages.

Reported-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Cc: iommu@lists.linux-foundation.org
LKML-Reference: <1237818908-26516-1-git-send-email-joerg.roedel@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

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