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(parent: 66f41d4) | patch
powerpc/swiotlb: Fix off by one in determining boundary of which ops to use
authorKumar Gala <galak@kernel.crashing.org>
Mon, 3 May 2010 12:36:22 +0000 (07:36 -0500)
committerKumar Gala <galak@kernel.crashing.org>
Tue, 4 May 2010 06:27:18 +0000 (01:27 -0500)
commitb8b14c66765ccba884c5c4570bf8be361d211d95
tree2891c2ee4396a5f3939a705cc720dcb3518a7afbtree | snapshot
parent66f41d4c5c8a5deed66fdcc84509376c9a0bf9d8commit | diff
powerpc/swiotlb: Fix off by one in determining boundary of which ops to use

When we compare the devices DMA mask to the amount of memory we need to
make sure we treat the DMA mask as an address boundary.  For example if
the DMA_MASK(32) and we have 4G of memory we'd incorrectly set the dma
ops to swiotlb.  We need to add one to the dma mask when we convert it.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
arch/powerpc/kernel/dma-swiotlb.c diff | blob | history
ep93xx device tree rework repo: git://git.maquefel.me/linux.git