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(parent: 74194cd) | patch
powerpc/dma: fix an off-by-one in dma_capable
authorChristoph Hellwig <hch@lst.de>
Wed, 13 Feb 2019 07:01:21 +0000 (08:01 +0100)
committerMichael Ellerman <mpe@ellerman.id.au>
Mon, 18 Feb 2019 11:41:03 +0000 (22:41 +1100)
commit9b18114c0be0193ebe772e45b3731602f056d54e
tree9bde6e9eed69e9a34714af83075687f9944f2c0ctree | snapshot
parent74194cdaac41f6dfaacd9433f739dcbd83125d0bcommit | diff
powerpc/dma: fix an off-by-one in dma_capable

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>
arch/powerpc/include/asm/dma-direct.h diff | blob | blame | history
Mirror https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git