powerpc/dma: fix an off-by-one in dma_capable

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We need to compare the last byte in the dma range and not the one after it
for the bus_dma_mask, just like we do for the regular dma_mask.  Fix this
cleanly by merging the two comparisms into one.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: Christian Zigotzky <chzigotzky@xenosoft.de>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

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Christoph Hellwig 2019-02-13 08:01:21 +01:00 • committed by Michael Ellerman

parent 74194cdaac

commit 9b18114c0b

1 changed files with 2 additions and 6 deletions

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arch/powerpc/include/asm/dma-direct.h

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