[PATCH 31/44] hexagon: remove arch-specific dma_supported implementation
From: Christoph Hellwig <hch@lst.de>
Date: 2017-06-16 18:13:08
Also in:
dri-devel, linux-arm-kernel, linux-iommu, linux-mips, linux-s390, linux-samsung-soc, linux-sh, linux-tegra, linuxppc-dev, lkml, sparclinux
Subsystem:
qualcomm hexagon architecture, the rest · Maintainers:
Brian Cain, Linus Torvalds
This implementation is simply bogus - hexagon only has a simple direct mapped DMA implementation and thus doesn't care about the address. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Richard Kuo <redacted> --- arch/hexagon/include/asm/dma-mapping.h | 2 -- arch/hexagon/kernel/dma.c | 9 --------- 2 files changed, 11 deletions(-)
diff --git a/arch/hexagon/include/asm/dma-mapping.h b/arch/hexagon/include/asm/dma-mapping.h
index 00e3f10113b0..9c15cb5271a6 100644
--- a/arch/hexagon/include/asm/dma-mapping.h
+++ b/arch/hexagon/include/asm/dma-mapping.h@@ -37,8 +37,6 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus) return dma_ops; } -#define HAVE_ARCH_DMA_SUPPORTED 1 -extern int dma_supported(struct device *dev, u64 mask); extern int dma_is_consistent(struct device *dev, dma_addr_t dma_handle); extern void dma_cache_sync(struct device *dev, void *vaddr, size_t size, enum dma_data_direction direction);
diff --git a/arch/hexagon/kernel/dma.c b/arch/hexagon/kernel/dma.c
index 71269dc0f225..9ff1b2041f85 100644
--- a/arch/hexagon/kernel/dma.c
+++ b/arch/hexagon/kernel/dma.c@@ -35,15 +35,6 @@ static inline void *dma_addr_to_virt(dma_addr_t dma_addr) return phys_to_virt((unsigned long) dma_addr); } -int dma_supported(struct device *dev, u64 mask) -{ - if (mask == DMA_BIT_MASK(32)) - return 1; - else - return 0; -} -EXPORT_SYMBOL(dma_supported); - static struct gen_pool *coherent_pool;
--
2.11.0