4.9-stable review patch. If anyone has any objections, please let me know.
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From: Christoph Hellwig hch@lst.de
commit 860dd4424f344400b491b212ee4acb3a358ba9d9 upstream.
Provide the dummy version of dma_get_cache_alignment that always returns 1 even if CONFIG_HAS_DMA is not set, so that drivers and subsystems can use it without ifdefs.
Signed-off-by: Christoph Hellwig hch@lst.de Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- include/linux/dma-mapping.h | 2 -- 1 file changed, 2 deletions(-)
--- a/include/linux/dma-mapping.h +++ b/include/linux/dma-mapping.h @@ -659,7 +659,6 @@ static inline void *dma_zalloc_coherent( return ret; }
-#ifdef CONFIG_HAS_DMA static inline int dma_get_cache_alignment(void) { #ifdef ARCH_DMA_MINALIGN @@ -667,7 +666,6 @@ static inline int dma_get_cache_alignmen #endif return 1; } -#endif
/* flags for the coherent memory api */ #define DMA_MEMORY_MAP 0x01