diff options
Diffstat (limited to 'kernel/dma/mapping.c')
| -rw-r--r-- | kernel/dma/mapping.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/kernel/dma/mapping.c b/kernel/dma/mapping.c index 40c0af744692..ef2aba503467 100644 --- a/kernel/dma/mapping.c +++ b/kernel/dma/mapping.c @@ -316,18 +316,23 @@ int dma_supported(struct device *dev, u64 mask) } EXPORT_SYMBOL(dma_supported); -#ifndef HAVE_ARCH_DMA_SET_MASK +#ifdef CONFIG_ARCH_HAS_DMA_SET_MASK +void arch_dma_set_mask(struct device *dev, u64 mask); +#else +#define arch_dma_set_mask(dev, mask) do { } while (0) +#endif + int dma_set_mask(struct device *dev, u64 mask) { if (!dev->dma_mask || !dma_supported(dev, mask)) return -EIO; + arch_dma_set_mask(dev, mask); dma_check_mask(dev, mask); *dev->dma_mask = mask; return 0; } EXPORT_SYMBOL(dma_set_mask); -#endif #ifndef CONFIG_ARCH_HAS_DMA_SET_COHERENT_MASK int dma_set_coherent_mask(struct device *dev, u64 mask) |