linux-kernel - [PATCH v2 0/1] arm64/dma-mapping: reduce an unnecessary conversion for coherent DMA

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Message-ID: <1458267967-6332-1-git-send-email-thunder.leizhen@huawei.com>
Date:	Fri, 18 Mar 2016 10:26:06 +0800
From:	Zhen Lei <thunder.leizhen@...wei.com>
To:	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will.deacon@....com>,
	linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
	linux-kernel <linux-kernel@...r.kernel.org>
CC:	Zefan Li <lizefan@...wei.com>, Xinwei Hu <huxinwei@...wei.com>,
	"Tianhong Ding" <dingtianhong@...wei.com>,
	Hanjun Guo <guohanjun@...wei.com>,
	Zhen Lei <thunder.leizhen@...wei.com>
Subject: [PATCH v2 0/1] arm64/dma-mapping: reduce an unnecessary conversion for coherent DMA

Changelog:
v1 -> v2:
1. Give up removing the conversion, because of thoughtless, instead moved it
into branch if (!is_device_dma_coherent(dev)). Thanks for Catalin's detailed
explanation, I directly take some relies as comment in the code.

Zhen Lei (1):
  arm64/dma-mapping: reduce an unnecessary conversion for coherent DMA

 arch/arm64/mm/dma-mapping.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

-- 
2.5.0