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| author | Brian W Hart <hartb@linux.vnet.ibm.com> | 2014-07-31 14:24:37 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-09-05 16:34:16 -0700 |
| commit | daaa4960907048e5c454e3f37a618b187befd933 (patch) | |
| tree | 9912a6f02344c21c2730c028992a814660ab66ee /arch/powerpc | |
| parent | 51d79fc2bc76246b3f098480404837bfdf1c76eb (diff) | |
| download | lwn-daaa4960907048e5c454e3f37a618b187befd933.tar.gz lwn-daaa4960907048e5c454e3f37a618b187befd933.zip | |
powerpc/powernv: Update dev->dma_mask in pci_set_dma_mask() path
commit a32305bf90a2ae0e6a9a93370c7616565f75e15a upstream.
powerpc defines various machine-specific routines for handling
pci_set_dma_mask(). The routines for machine "PowerNV" may neglect
to set dev->dma_mask. This could confuse anyone (e.g. drivers) that
consult dev->dma_mask to find the current mask. Set the dma_mask in
the PowerNV leaf routine.
Signed-off-by: Brian W. Hart <hartb@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/platforms/powernv/pci-ioda.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c index 3b2b4fb3585b..beedaf0c5e75 100644 --- a/arch/powerpc/platforms/powernv/pci-ioda.c +++ b/arch/powerpc/platforms/powernv/pci-ioda.c @@ -491,6 +491,7 @@ static int pnv_pci_ioda_dma_set_mask(struct pnv_phb *phb, set_dma_ops(&pdev->dev, &dma_iommu_ops); set_iommu_table_base(&pdev->dev, &pe->tce32_table); } + *pdev->dev.dma_mask = dma_mask; return 0; } |