[PATCH 3.11 178/198] arm64/dma: Removing ARCH_HAS_DMA_GET_REQUIRED_MASK macro

[Luis Henriques]

3.11.10.13 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Suravee Suthikulpanit <Suravee.Suthikulpanit at amd.com>

commit f3a183cb422574014538017b5b291a416396f97e upstream.

Arm64 does not define dma_get_required_mask() function.
Therefore, it should not define the ARCH_HAS_DMA_GET_REQUIRED_MASK.
This causes build errors in some device drivers (e.g. mpt2sas)

Signed-off-by: Suravee Suthikulpanit <Suravee.Suthikulpanit at amd.com>
Signed-off-by: Catalin Marinas <catalin.marinas at arm.com>
[ luis: backported to 3.11: adjusted context ]
Signed-off-by: Luis Henriques <luis.henriques at canonical.com>
---
 arch/arm64/include/asm/dma-mapping.h | 2 --
 1 file changed, 2 deletions(-)

diff --git a/arch/arm64/include/asm/dma-mapping.h b/arch/arm64/include/asm/dma-mapping.h
index 8d1810001aef..e8d35b562e3a 100644
--- a/arch/arm64/include/asm/dma-mapping.h
+++ b/arch/arm64/include/asm/dma-mapping.h
@@ -23,8 +23,6 @@
 
 #include <asm-generic/dma-coherent.h>
 
-#define ARCH_HAS_DMA_GET_REQUIRED_MASK
-
 extern struct dma_map_ops *dma_ops;
 
 static inline struct dma_map_ops *get_dma_ops(struct device *dev)
-- 
1.9.1