MIPS: remove the mips_dma_map_ops indirection

And use mips_default_dma_map_ops directly.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Patchwork: https://patchwork.linux-mips.org/patch/19535/Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: David Daney <david.daney@cavium.com>
Cc: Kevin Cernekee <cernekee@gmail.com>
Cc: Jiaxun Yang <jiaxun.yang@flygoat.com>
Cc: Tom Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Huacai Chen <chenhc@lemote.com>
Cc: iommu@lists.linux-foundation.org
Cc: linux-mips@linux-mips.org

arch/mips/include/asm/dma-mapping.h

@@ -10,7 +10,7 @@
 #include <dma-coherence.h>
 #endif
 
-extern const struct dma_map_ops *mips_dma_map_ops;
+extern const struct dma_map_ops mips_default_dma_map_ops;
 extern const struct dma_map_ops mips_swiotlb_ops;
 
 static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
@@ -18,7 +18,7 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 #ifdef CONFIG_SWIOTLB
 	return &mips_swiotlb_ops;
 #else
-	return mips_dma_map_ops;
+	return &mips_default_dma_map_ops;
 #endif
 }
 

arch/mips/mm/dma-default.c

@@ -384,7 +384,7 @@ static void mips_dma_cache_sync(struct device *dev, void *vaddr, size_t size,
 		__dma_sync_virtual(vaddr, size, direction);
 }
 
-static const struct dma_map_ops mips_default_dma_map_ops = {
+const struct dma_map_ops mips_default_dma_map_ops = {
 	.alloc = mips_dma_alloc_coherent,
 	.free = mips_dma_free_coherent,
 	.mmap = mips_dma_mmap,
@@ -399,6 +399,4 @@ static const struct dma_map_ops mips_default_dma_map_ops = {
 	.dma_supported = mips_dma_supported,
 	.cache_sync = mips_dma_cache_sync,
 };
-
-const struct dma_map_ops *mips_dma_map_ops = &mips_default_dma_map_ops;
-EXPORT_SYMBOL(mips_dma_map_ops);
+EXPORT_SYMBOL(mips_default_dma_map_ops);