linux-kernel - [PATCH] mmc: core: remove redundant memset of mmc_decode

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Message-Id: <1457714145-6958-1-git-send-email-shawn.lin@rock-chips.com>
Date:	Sat, 12 Mar 2016 00:35:45 +0800
From:	Shawn Lin <shawn.lin@...k-chips.com>
To:	Ulf Hansson <ulf.hansson@...aro.org>
Cc:	linux-mmc@...r.kernel.org, linux-kernel@...r.kernel.org,
	Shawn Lin <shawn.lin@...k-chips.com>
Subject: [PATCH] mmc: core: remove redundant memset of mmc_decode_cid

When initializing sd or sdio card, we get struct mmc_card
from mmc_alloc_card which allocates it by kzalloc. So we don't
need another memset while decoding cid.

Signed-off-by: Shawn Lin <shawn.lin@...k-chips.com>
---

 drivers/mmc/core/sd.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c
index bb39a29..b95bd24 100644
--- a/drivers/mmc/core/sd.c
+++ b/drivers/mmc/core/sd.c
@@ -74,8 +74,6 @@ void mmc_decode_cid(struct mmc_card *card)
 {
 	u32 *resp = card->raw_cid;
 
-	memset(&card->cid, 0, sizeof(struct mmc_cid));
-
 	/*
 	 * SD doesn't currently have a version field so we will
 	 * have to assume we can parse this.
-- 
2.3.7