X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=blobdiff_plain;f=arch%2Farm64%2Finclude%2Fasm%2Fdma-mapping.h;h=0df756b248633fa76b564ef37540b21d1b59bc63;hb=f72e24a1240b78f421649c4d88f5c24ab1c896a1;hp=5392dbeffa455ec75043e6dc9067528fa8ae1ea0;hpb=e47b40a235e9552bc48e4c73c53854ce734da661;p=linux.git

diff --git a/arch/arm64/include/asm/dma-mapping.h b/arch/arm64/include/asm/dma-mapping.h
index 5392dbeffa45..0df756b24863 100644
--- a/arch/arm64/include/asm/dma-mapping.h
+++ b/arch/arm64/include/asm/dma-mapping.h
@@ -24,7 +24,6 @@
 #include <xen/xen.h>
 #include <asm/xen/hypervisor.h>
 
-#define DMA_ERROR_CODE	(~(dma_addr_t)0)
 extern const struct dma_map_ops dummy_dma_ops;
 
 static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
@@ -48,8 +47,6 @@ void arch_teardown_dma_ops(struct device *dev);
 /* do not use this function in a driver */
 static inline bool is_device_dma_coherent(struct device *dev)
 {
-	if (!dev)
-		return false;
 	return dev->archdata.dma_coherent;
 }