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List:       linux-sh
Subject:    [PATCH 01/87] sh: mm: Remove call to memset after dma_alloc_coherent
From:       Fuqian Huang <huangfq.daxian () gmail ! com>
Date:       2019-06-27 17:33:31
Message-ID: 20190627173332.1879-1-huangfq.daxian () gmail ! com
[Download RAW message or body]

In commit af7ddd8a627c
("Merge tag 'dma-mapping-4.21' of git://git.infradead.org/users/hch/dma-mapping"),
dma_alloc_coherent has already zeroed the memory.
So memset is not needed.

Signed-off-by: Fuqian Huang <huangfq.daxian@gmail.com>
---
 arch/sh/mm/consistent.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/arch/sh/mm/consistent.c b/arch/sh/mm/consistent.c
index 792f36129062..b09510adfae9 100644
--- a/arch/sh/mm/consistent.c
+++ b/arch/sh/mm/consistent.c
@@ -58,8 +58,6 @@ int __init platform_resource_setup_memory(struct platform_device *pdev,
 		return -ENOMEM;
 	}
 
-	memset(buf, 0, memsize);
-
 	r->flags = IORESOURCE_MEM;
 	r->start = dma_handle;
 	r->end = r->start + memsize - 1;
-- 
2.11.0

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