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| author |   Christoph Hellwig <hch@lst.de> | 2019-02-13 08:01:22 +0100 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2019-02-18 22:41:03 +1100 |
| commit | 11ddce15451eb5e3cb2c951dc5c8d86a2802017a (patch) | |
| tree | e3e7a8541cbb2a52ba114da6c66ea8fd3ccbbd5b /arch/powerpc/sysdev | |
| parent | powerpc/dma: fix an off-by-one in dma_capable (diff) | |
| download | linux-dev-11ddce15451eb5e3cb2c951dc5c8d86a2802017a.tar.xz linux-dev-11ddce15451eb5e3cb2c951dc5c8d86a2802017a.zip | |
dma-mapping, powerpc: simplify the arch dma_set_mask override
Instead of letting the architecture supply all of dma_set_mask just
give it an additional hook selected by Kconfig.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: Christian Zigotzky <chzigotzky@xenosoft.de>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/sysdev')
| -rw-r--r-- | arch/powerpc/sysdev/fsl_pci.c | 8 |
1 files changed, 1 insertions, 7 deletions
diff --git a/arch/powerpc/sysdev/fsl_pci.c b/arch/powerpc/sysdev/fsl_pci.c index b710cee023a2..0c6510f340cb 100644 --- a/arch/powerpc/sysdev/fsl_pci.c +++ b/arch/powerpc/sysdev/fsl_pci.c @@ -133,11 +133,8 @@ static void setup_swiotlb_ops(struct pci_controller *hose) static inline void setup_swiotlb_ops(struct pci_controller *hose) {} #endif -static int fsl_pci_dma_set_mask(struct device *dev, u64 dma_mask) +static void fsl_pci_dma_set_mask(struct device *dev, u64 dma_mask) { - if (!dev->dma_mask || !dma_supported(dev, dma_mask)) - return -EIO; - /* * Fix up PCI devices that are able to DMA to the large inbound * mapping that allows addressing any RAM address from across PCI. @@ -147,9 +144,6 @@ static int fsl_pci_dma_set_mask(struct device *dev, u64 dma_mask) set_dma_ops(dev, &dma_nommu_ops); set_dma_offset(dev, pci64_dma_offset); } - - *dev->dma_mask = dma_mask; - return 0; } static int setup_one_atmu(struct ccsr_pci __iomem *pci, |