Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
From:   Chaotian Jing <chaotian.jing@mediatek.com>
To:     Ulf Hansson <ulf.hansson@linaro.org>
CC:     Matthias Brugger <matthias.bgg@gmail.com>,
        Shawn Lin <shawn.lin@rock-chips.com>,
        Simon Horman <horms+renesas@verge.net.au>,
        Chaotian Jing <chaotian.jing@mediatek.com>,
        Avri Altman <avri.altman@wdc.com>,
        Kyle Roeschley <kyle.roeschley@ni.com>,
        Hongjie Fang <hongjiefang@asrmicro.com>,
        Adrian Hunter <adrian.hunter@intel.com>,
        <linux-mmc@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
        <linux-arm-kernel@lists.infradead.org>,
        <linux-mediatek@lists.infradead.org>, <srv_heupstream@mediatek.com>
Subject: [PATCH v2 1/2] mmc: core: do not retry CMD6 in __mmc_switch()
Date:   Fri, 15 Feb 2019 13:59:34 +0800
Message-ID: <1550210375-32270-2-git-send-email-chaotian.jing@mediatek.com>
In-Reply-To: <1550210375-32270-1-git-send-email-chaotian.jing@mediatek.com>
References: <1550210375-32270-1-git-send-email-chaotian.jing@mediatek.com>
MIME-Version: 1.0
Content-Type: text/plain
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

the response type of CMD6 is R1B, when the first CMD6 gets response
CRC error, do retry may get timeout error due to card may still in
busy state, which cause this retry make no sense.

Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com>
---
 drivers/mmc/core/mmc_ops.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mmc/core/mmc_ops.c b/drivers/mmc/core/mmc_ops.c
index 9054329..c5208fb 100644
--- a/drivers/mmc/core/mmc_ops.c
+++ b/drivers/mmc/core/mmc_ops.c
@@ -562,7 +562,7 @@ int __mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value,
 	if (index == EXT_CSD_SANITIZE_START)
 		cmd.sanitize_busy = true;
 
-	err = mmc_wait_for_cmd(host, &cmd, MMC_CMD_RETRIES);
+	err = mmc_wait_for_cmd(host, &cmd, 0);
 	if (err)
 		goto out;
 
-- 
1.8.1.1.dirty