The patch titled
Subject: sh: remove call to memset after dma_alloc_coherent
has been added to the -mm tree. Its filename is
sh-remove-call-to-memset-after-dma_alloc_coherent.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/sh-remove-call-to-memset-after-dma_alloc_coherent.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/sh-remove-call-to-memset-after-dma_alloc_coherent.patch
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------------------------------------------------------
From: Chen Zhou <chenzhou10@xxxxxxxxxx>
Subject: sh: remove call to memset after dma_alloc_coherent
Function dma_alloc_coherent use in buf already zeroes out memory,
so memset is not needed.
Link: https://marc.info/?l=linux-sh&m=157793031102356
Signed-off-by: Chen Zhou <chenzhou10@xxxxxxxxxx>
Cc: Alan Modra <amodra@xxxxxxxxx>
Cc: Bin Meng <bin.meng@xxxxxxxxxxxxx>
Cc: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
Cc: John Paul Adrian Glaubitz <glaubitz@xxxxxxxxxxxxxxxxxxx>
Cc: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
Cc: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>
Cc: Rich Felker <dalias@xxxxxxxx>
Cc: Romain Naour <romain.naour@xxxxxxxxx>
Cc: Sam Ravnborg <sam@xxxxxxxxxxxx>
Cc: Yoshinori Sato <ysato@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/sh/mm/consistent.c | 2 --
1 file changed, 2 deletions(-)
--- a/arch/sh/mm/consistent.c~sh-remove-call-to-memset-after-dma_alloc_coherent
+++ a/arch/sh/mm/consistent.c
@@ -57,8 +57,6 @@ int __init platform_resource_setup_memor
return -ENOMEM;
}
- memset(buf, 0, memsize);
-
r->flags = IORESOURCE_MEM;
r->start = dma_handle;
r->end = r->start + memsize - 1;
_
Patches currently in -mm which might be from chenzhou10@xxxxxxxxxx are
sh-remove-call-to-memset-after-dma_alloc_coherent.patch
