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authorJoerg Roedel <joerg.roedel@amd.com>2009-03-23 15:35:08 +0100
committerIngo Molnar <mingo@elte.hu>2009-03-24 08:39:32 +0100
commit9537a48ed4b9e4b738943d6da0a0fd4278adf905 (patch)
tree06f512876680265ece3bd46b14c2b1c234202918 /arch/x86/kernel/Makefile
parentdma-debug: warn of unmapping an invalid dma address (diff)
downloadlinux-9537a48ed4b9e4b738943d6da0a0fd4278adf905.tar.xz
linux-9537a48ed4b9e4b738943d6da0a0fd4278adf905.zip
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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