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| author | David S. Miller <davem@davemloft.net> | 2019-08-19 21:54:03 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-08-19 21:54:03 +0300 |
| commit | 446bf64b613c4433dac4b15f4eaf326beaad3c8e (patch) | |
| tree | b20b9457234f6f9a5d7464213ef6d10f95f3eed3 /include/linux/dma-noncoherent.h | |
| parent | 20e79a0a2cfd15b6cfb18119f2e108396be56716 (diff) | |
| parent | 06821504fd47a5e5b641aeeb638a0ae10a216ef8 (diff) | |
| download | linux-446bf64b613c4433dac4b15f4eaf326beaad3c8e.tar.xz | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Merge conflict of mlx5 resolved using instructions in merge
commit 9566e650bf7fdf58384bb06df634f7531ca3a97e.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/dma-noncoherent.h')
| -rw-r--r-- | include/linux/dma-noncoherent.h | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/include/linux/dma-noncoherent.h b/include/linux/dma-noncoherent.h index 3813211a9aad..0bff3d7fac92 100644 --- a/include/linux/dma-noncoherent.h +++ b/include/linux/dma-noncoherent.h @@ -42,13 +42,18 @@ void arch_dma_free(struct device *dev, size_t size, void *cpu_addr, dma_addr_t dma_addr, unsigned long attrs); long arch_dma_coherent_to_pfn(struct device *dev, void *cpu_addr, dma_addr_t dma_addr); - -#ifdef CONFIG_ARCH_HAS_DMA_MMAP_PGPROT pgprot_t arch_dma_mmap_pgprot(struct device *dev, pgprot_t prot, unsigned long attrs); + +#ifdef CONFIG_MMU +pgprot_t dma_pgprot(struct device *dev, pgprot_t prot, unsigned long attrs); #else -# define arch_dma_mmap_pgprot(dev, prot, attrs) pgprot_noncached(prot) -#endif +static inline pgprot_t dma_pgprot(struct device *dev, pgprot_t prot, + unsigned long attrs) +{ + return prot; /* no protection bits supported without page tables */ +} +#endif /* CONFIG_MMU */ #ifdef CONFIG_DMA_NONCOHERENT_CACHE_SYNC void arch_dma_cache_sync(struct device *dev, void *vaddr, size_t size, |