tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 3d77e6a8804abcc0504c904bd6e5cdf3a5cf8162 commit: 3c1bcc8614db10803f1f57ef0295363917448cb2 net: ethernet: Convert phydev advertize and supported from u32 to link mode config: mips-randconfig-r016-20200601 (attached as .config) compiler: mips-linux-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout 3c1bcc8614db10803f1f57ef0295363917448cb2 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=mips If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot All errors (new ones prefixed by >>, old ones prefixed by <<): drivers/staging/netlogic/xlr_net.c: In function 'xlr_gmac_link_adjust': drivers/staging/netlogic/xlr_net.c:801:6: warning: variable 'intreg' set but not used [-Wunused-but-set-variable] 801 | u32 intreg; | ^~~~~~ drivers/staging/netlogic/xlr_net.c: In function 'xlr_mii_probe': >> drivers/staging/netlogic/xlr_net.c:832:20: error: assignment to expression with array type 832 | phydev->supported &= (ADVERTISED_10baseT_Full | ^~ drivers/staging/netlogic/xlr_net.c:840:22: error: assignment to expression with array type 840 | phydev->advertising = phydev->supported; | ^ # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3c1bcc8614db10803f1f57ef0295363917448cb2 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git remote update linus git checkout 3c1bcc8614db10803f1f57ef0295363917448cb2 vim +832 drivers/staging/netlogic/xlr_net.c 6f98b1a250cb60 Ganesan Ramalingam 2013-03-06 796 6f98b1a250cb60 Ganesan Ramalingam 2013-03-06 797 static void xlr_gmac_link_adjust(struct net_device *ndev) 6f98b1a250cb60 Ganesan Ramalingam 2013-03-06 798 { 6f98b1a250cb60 Ganesan Ramalingam 2013-03-06 799 struct xlr_net_priv *priv = netdev_priv(ndev); 3fe01e2406ead2 Andrew Lunn 2016-01-11 800 struct phy_device *phydev = xlr_get_phydev(priv); 6f98b1a250cb60 Ganesan Ramalingam 2013-03-06 @801 u32 intreg; 6f98b1a250cb60 Ganesan Ramalingam 2013-03-06 802 6f98b1a250cb60 Ganesan Ramalingam 2013-03-06 803 intreg = xlr_nae_rdreg(priv->base_addr, R_INTREG); 6f98b1a250cb60 Ganesan Ramalingam 2013-03-06 804 if (phydev->link) { 6f98b1a250cb60 Ganesan Ramalingam 2013-03-06 805 if (phydev->speed != priv->phy_speed) { 6f98b1a250cb60 Ganesan Ramalingam 2013-03-06 806 xlr_set_gmac_speed(priv); f8397bc69095f6 Ganesan Ramalingam 2014-08-21 807 pr_info("gmac%d : Link up\n", priv->port_id); 6f98b1a250cb60 Ganesan Ramalingam 2013-03-06 808 } 6f98b1a250cb60 Ganesan Ramalingam 2013-03-06 809 } else { 6f98b1a250cb60 Ganesan Ramalingam 2013-03-06 810 xlr_set_gmac_speed(priv); f8397bc69095f6 Ganesan Ramalingam 2014-08-21 811 pr_info("gmac%d : Link down\n", priv->port_id); 6f98b1a250cb60 Ganesan Ramalingam 2013-03-06 812 } 6f98b1a250cb60 Ganesan Ramalingam 2013-03-06 813 } 6f98b1a250cb60 Ganesan Ramalingam 2013-03-06 814 6f98b1a250cb60 Ganesan Ramalingam 2013-03-06 815 static int xlr_mii_probe(struct xlr_net_priv *priv) 6f98b1a250cb60 Ganesan Ramalingam 2013-03-06 816 { 3fe01e2406ead2 Andrew Lunn 2016-01-11 817 struct phy_device *phydev = xlr_get_phydev(priv); 6f98b1a250cb60 Ganesan Ramalingam 2013-03-06 818 6f98b1a250cb60 Ganesan Ramalingam 2013-03-06 819 if (!phydev) { 6f98b1a250cb60 Ganesan Ramalingam 2013-03-06 820 pr_err("no PHY found on phy_addr %d\n", priv->phy_addr); 6f98b1a250cb60 Ganesan Ramalingam 2013-03-06 821 return -ENODEV; 6f98b1a250cb60 Ganesan Ramalingam 2013-03-06 822 } 6f98b1a250cb60 Ganesan Ramalingam 2013-03-06 823 6f98b1a250cb60 Ganesan Ramalingam 2013-03-06 824 /* Attach MAC to PHY */ 84eff6d194df44 Andrew Lunn 2016-01-06 825 phydev = phy_connect(priv->ndev, phydev_name(phydev), 968b4e6bd3b00c Sandhya Bankar 2016-03-19 826 xlr_gmac_link_adjust, priv->nd->phy_interface); 6f98b1a250cb60 Ganesan Ramalingam 2013-03-06 827 6f98b1a250cb60 Ganesan Ramalingam 2013-03-06 828 if (IS_ERR(phydev)) { 6f98b1a250cb60 Ganesan Ramalingam 2013-03-06 829 pr_err("could not attach PHY\n"); 6f98b1a250cb60 Ganesan Ramalingam 2013-03-06 830 return PTR_ERR(phydev); 6f98b1a250cb60 Ganesan Ramalingam 2013-03-06 831 } 6f98b1a250cb60 Ganesan Ramalingam 2013-03-06 @832 phydev->supported &= (ADVERTISED_10baseT_Full 6f98b1a250cb60 Ganesan Ramalingam 2013-03-06 833 | ADVERTISED_10baseT_Half 6f98b1a250cb60 Ganesan Ramalingam 2013-03-06 834 | ADVERTISED_100baseT_Full 6f98b1a250cb60 Ganesan Ramalingam 2013-03-06 835 | ADVERTISED_100baseT_Half 6f98b1a250cb60 Ganesan Ramalingam 2013-03-06 836 | ADVERTISED_1000baseT_Full 6f98b1a250cb60 Ganesan Ramalingam 2013-03-06 837 | ADVERTISED_Autoneg 6f98b1a250cb60 Ganesan Ramalingam 2013-03-06 838 | ADVERTISED_MII); 6f98b1a250cb60 Ganesan Ramalingam 2013-03-06 839 6f98b1a250cb60 Ganesan Ramalingam 2013-03-06 840 phydev->advertising = phydev->supported; 2220943a21e26d Andrew Lunn 2016-01-06 841 phy_attached_info(phydev); 6f98b1a250cb60 Ganesan Ramalingam 2013-03-06 842 return 0; 6f98b1a250cb60 Ganesan Ramalingam 2013-03-06 843 } 6f98b1a250cb60 Ganesan Ramalingam 2013-03-06 844 :::::: The code at line 832 was first introduced by commit :::::: 6f98b1a250cb6055ab5dde41a181b2c9cf026bc9 Staging: Netlogic XLR/XLS GMAC driver :::::: TO: Ganesan Ramalingam :::::: CC: Greg Kroah-Hartman --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org