linux-kernel - [PATCH net-next] net: ethernet: dnet: Remove set but unused variable 'len'

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Message-ID: <20200907141207.11778-1-wanghai38@huawei.com>
Date:   Mon, 7 Sep 2020 22:12:07 +0800
From:   Wang Hai <wanghai38@...wei.com>
To:     <davem@...emloft.net>, <kuba@...nel.org>, <f.fainelli@...il.com>,
        <timur@...nel.org>, <zhengdejin5@...il.com>,
        <hkallweit1@...il.com>, <leon@...nel.org>
CC:     <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH net-next] net: ethernet: dnet: Remove set but unused variable 'len'

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

drivers/net/ethernet/dnet.c: In function dnet_start_xmit
drivers/net/ethernet/dnet.c:511:15: warning: variable ‘len’ set but not used [-Wunused-but-set-variable]

commit 4796417417a6 ("dnet: Dave DNET ethernet controller driver (updated)")
involved this unused variable, remove it.

Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: Wang Hai <wanghai38@...wei.com>
---
 drivers/net/ethernet/dnet.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/dnet.c b/drivers/net/ethernet/dnet.c
index db98274501a0..3143df9a398c 100644
--- a/drivers/net/ethernet/dnet.c
+++ b/drivers/net/ethernet/dnet.c
@@ -508,7 +508,7 @@ static netdev_tx_t dnet_start_xmit(struct sk_buff *skb, struct net_device *dev)
 
 	struct dnet *bp = netdev_priv(dev);
 	u32 tx_status, irq_enable;
-	unsigned int len, i, tx_cmd, wrsz;
+	unsigned int i, tx_cmd, wrsz;
 	unsigned long flags;
 	unsigned int *bufp;
 
@@ -518,9 +518,6 @@ static netdev_tx_t dnet_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	       skb->len, skb->head, skb->data);
 	dnet_print_skb(skb);
 
-	/* frame size (words) */
-	len = (skb->len + 3) >> 2;
-
 	spin_lock_irqsave(&bp->lock, flags);
 
 	tx_status = dnet_readl(bp, TX_STATUS);
-- 
2.17.1