[PATCH net-next] net: marvell: Remove set but not used variable

[Zheng Yongjun]

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

drivers/net/ethernet/marvell/pxa168_eth.c: In function pxa168_eth_change_mtu:
drivers/net/ethernet/marvell/pxa168_eth.c:1190:6: warning: variable ‘retval’ set but not used [-Wunused-but-set-variable]

`retval` is never used, so remove it.

Signed-off-by: Zheng Yongjun <zhengyongjun3@xxxxxxxxxx>
---
 drivers/net/ethernet/marvell/pxa168_eth.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/marvell/pxa168_eth.c b/drivers/net/ethernet/marvell/pxa168_eth.c
index eb8cf60ecf12..0af31ec5dc7d 100644
--- a/drivers/net/ethernet/marvell/pxa168_eth.c
+++ b/drivers/net/ethernet/marvell/pxa168_eth.c
@@ -1187,11 +1187,10 @@ static int pxa168_eth_stop(struct net_device *dev)
 
 static int pxa168_eth_change_mtu(struct net_device *dev, int mtu)
 {
-	int retval;
 	struct pxa168_eth_private *pep = netdev_priv(dev);
 
 	dev->mtu = mtu;
-	retval = set_port_config_ext(pep);
+	set_port_config_ext(pep);
 
 	if (!netif_running(dev))
 		return 0;
-- 
2.17.1