linux-kernel - [PATCH] arm64/dma: Removing ARCH_HAS_DMA_GET_REQUIRED

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Date:	Fri, 6 Jun 2014 17:07:16 -0500
From:	<suravee.suthikulpanit@....com>
To:	<catalin.marinas@....com>, <Will.Deacon@....com>
CC:	<linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>, <thomas.lendacky@....com>,
	Suravee Suthikulpanit <Suravee.Suthikulpanit@....com>
Subject: [PATCH] arm64/dma: Removing ARCH_HAS_DMA_GET_REQUIRED_MASK macro

From: Suravee Suthikulpanit <Suravee.Suthikulpanit@....com>

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@....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 3a4572e..dc82e52 100644
--- a/arch/arm64/include/asm/dma-mapping.h
+++ b/arch/arm64/include/asm/dma-mapping.h
@@ -26,8 +26,6 @@
 #include <xen/xen.h>
 #include <asm/xen/hypervisor.h>
 
-#define ARCH_HAS_DMA_GET_REQUIRED_MASK
-
 #define DMA_ERROR_CODE	(~(dma_addr_t)0)
 extern struct dma_map_ops *dma_ops;
 extern struct dma_map_ops coherent_swiotlb_dma_ops;
-- 
1.9.0

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