Re: [PATCH] net: stmmac: Add support for ethtool::nway_reset

From: kbuild test robot
Date: Sun Nov 13 2016 - 17:19:35 EST


Hi Florian,

[auto build test WARNING on net-next/master]
[also build test WARNING on next-20161111]
[cannot apply to v4.9-rc5]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url: https://github.com/0day-ci/linux/commits/Florian-Fainelli/net-stmmac-Add-support-for-ethtool-nway_reset/20161114-053015
config: x86_64-kexec (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
# save the attached .config to linux build tree
make ARCH=x86_64

All warnings (new ones prefixed by >>):

drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c: In function 'stmmac_nway_reset':
>> drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c:867:22: warning: unused variable 'priv' [-Wunused-variable]
struct stmmac_priv *priv = netdev_priv(dev);
^~~~

vim +/priv +867 drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c

851 int ret = 0;
852
853 switch (tuna->id) {
854 case ETHTOOL_RX_COPYBREAK:
855 priv->rx_copybreak = *(u32 *)data;
856 break;
857 default:
858 ret = -EINVAL;
859 break;
860 }
861
862 return ret;
863 }
864
865 static int stmmac_nway_reset(struct net_device *dev)
866 {
> 867 struct stmmac_priv *priv = netdev_priv(dev);
868
869 if (!dev->phydev)
870 return -ENODEV;
871
872 return genphy_restart_aneg(dev->phydev);
873 }
874
875 static const struct ethtool_ops stmmac_ethtool_ops = {

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