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| author | Christoph Hellwig <hch@lst.de> | 2020-02-21 21:24:02 +0100 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2020-03-16 10:48:02 +0100 |
| commit | 4f8232bbf887123f78bcdca3dfd2b3dfa52a0112 (patch) | |
| tree | ec534d3d2c43b28cf92423e28abc9fa750416384 /arch/nios2/mm/dma-mapping.c | |
| parent | dma-coherent: fix integer overflow in the reserved-memory dma allocation (diff) | |
| download | linux-4f8232bbf887123f78bcdca3dfd2b3dfa52a0112.tar.xz linux-4f8232bbf887123f78bcdca3dfd2b3dfa52a0112.zip | |
dma-direct: remove the cached_kernel_address hook
dma-direct now finds the kernel address for coherent allocations based
on the dma address, so the cached_kernel_address hooks is unused and
can be removed entirely.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Diffstat (limited to 'arch/nios2/mm/dma-mapping.c')
| -rw-r--r-- | arch/nios2/mm/dma-mapping.c | 10 |
1 files changed, 0 insertions, 10 deletions
diff --git a/arch/nios2/mm/dma-mapping.c b/arch/nios2/mm/dma-mapping.c index 0ed711e37902..f30f2749257c 100644 --- a/arch/nios2/mm/dma-mapping.c +++ b/arch/nios2/mm/dma-mapping.c @@ -75,13 +75,3 @@ void *uncached_kernel_address(void *ptr) return (void *)ptr; } - -void *cached_kernel_address(void *ptr) -{ - unsigned long addr = (unsigned long)ptr; - - addr &= ~CONFIG_NIOS2_IO_REGION_BASE; - addr |= CONFIG_NIOS2_KERNEL_REGION_BASE; - - return (void *)ptr; -} |