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-rw-r--r--arch/xtensa/Kconfig1
-rw-r--r--arch/xtensa/include/asm/dma-mapping.h2
2 files changed, 1 insertions, 2 deletions
diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig
index f4126cf997a4..7ad6d77b2f22 100644
--- a/arch/xtensa/Kconfig
+++ b/arch/xtensa/Kconfig
@@ -3,6 +3,7 @@ config ZONE_DMA
config XTENSA
def_bool y
+ select ARCH_NO_COHERENT_DMA_MMAP if !MMU
select ARCH_WANT_FRAME_POINTERS
select ARCH_WANT_IPC_PARSE_VERSION
select BUILDTIME_EXTABLE_SORT
diff --git a/arch/xtensa/include/asm/dma-mapping.h b/arch/xtensa/include/asm/dma-mapping.h
index c6140fa8c0be..269738dc9d1d 100644
--- a/arch/xtensa/include/asm/dma-mapping.h
+++ b/arch/xtensa/include/asm/dma-mapping.h
@@ -16,8 +16,6 @@
#include <linux/mm.h>
#include <linux/scatterlist.h>
-#define DMA_ERROR_CODE (~(dma_addr_t)0x0)
-
extern const struct dma_map_ops xtensa_dma_map_ops;
static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)