linux-kernel - [PATCH net-next] ieee802154: remove set but not used variable 'status'

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Message-ID: <20191023070618.30044-1-yuehaibing@huawei.com>
Date:   Wed, 23 Oct 2019 15:06:18 +0800
From:   YueHaibing <yuehaibing@...wei.com>
To:     <varkabhadram@...il.com>, <alex.aring@...il.com>,
        <stefan@...enfreihafen.org>, <davem@...emloft.net>
CC:     <linux-wpan@...r.kernel.org>, <netdev@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, YueHaibing <yuehaibing@...wei.com>
Subject: [PATCH net-next] ieee802154: remove set but not used variable 'status'

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/net/ieee802154/cc2520.c:221:5: warning:
 variable status set but not used [-Wunused-but-set-variable]

It is never used, so can be removed.

Signed-off-by: YueHaibing <yuehaibing@...wei.com>
---
 drivers/net/ieee802154/cc2520.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/net/ieee802154/cc2520.c b/drivers/net/ieee802154/cc2520.c
index 4350694..89c046b 100644
--- a/drivers/net/ieee802154/cc2520.c
+++ b/drivers/net/ieee802154/cc2520.c
@@ -218,7 +218,6 @@ static int
 cc2520_cmd_strobe(struct cc2520_private *priv, u8 cmd)
 {
 	int ret;
-	u8 status = 0xff;
 	struct spi_message msg;
 	struct spi_transfer xfer = {
 		.len = 0,
@@ -236,8 +235,6 @@ cc2520_cmd_strobe(struct cc2520_private *priv, u8 cmd)
 		 priv->buf[0]);
 
 	ret = spi_sync(priv->spi, &msg);
-	if (!ret)
-		status = priv->buf[0];
 	dev_vdbg(&priv->spi->dev,
 		 "buf[0] = %02x\n", priv->buf[0]);
 	mutex_unlock(&priv->buffer_mutex);
-- 
2.7.4