tree: https://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers.git master head: 541708cc1e6ad29fdb4c294831dfa855bd64487b commit: 428d2a440d43ba81b698ec71de5125e4aeddf752 [69/80] Merge remote-tracking branch 'pci/next' into renesas-drivers config: alpha-allyesconfig (attached as .config) compiler: alpha-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 428d2a440d43ba81b698ec71de5125e4aeddf752 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=alpha If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All error/warnings (new ones prefixed by >>): 1227 | enum pci_channel_state state) | ^~~~~~~~~~~~~~~~~ 1227 | enum pci_channel_state state) | ~~~~~~~~~~~~~~~~~~~~~~~^~~~~ 1226 | static pci_ers_result_t efx_io_error_detected(struct pci_dev *pdev, | ^~~~~~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +1227 drivers/net/ethernet/sfc/efx_common.c 21ea21252eddb3c Edward Cree 2020-06-29 1221 21ea21252eddb3c Edward Cree 2020-06-29 1222 /* A PCI error affecting this device was detected. 21ea21252eddb3c Edward Cree 2020-06-29 1223 * At this point MMIO and DMA may be disabled. 21ea21252eddb3c Edward Cree 2020-06-29 1224 * Stop the software path and request a slot reset. 21ea21252eddb3c Edward Cree 2020-06-29 1225 */ 21ea21252eddb3c Edward Cree 2020-06-29 @1226 static pci_ers_result_t efx_io_error_detected(struct pci_dev *pdev, 21ea21252eddb3c Edward Cree 2020-06-29 @1227 enum pci_channel_state state) 21ea21252eddb3c Edward Cree 2020-06-29 1228 { 21ea21252eddb3c Edward Cree 2020-06-29 1229 pci_ers_result_t status = PCI_ERS_RESULT_RECOVERED; 21ea21252eddb3c Edward Cree 2020-06-29 1230 struct efx_nic *efx = pci_get_drvdata(pdev); 21ea21252eddb3c Edward Cree 2020-06-29 1231 21ea21252eddb3c Edward Cree 2020-06-29 1232 if (state == pci_channel_io_perm_failure) 21ea21252eddb3c Edward Cree 2020-06-29 1233 return PCI_ERS_RESULT_DISCONNECT; 21ea21252eddb3c Edward Cree 2020-06-29 1234 21ea21252eddb3c Edward Cree 2020-06-29 1235 rtnl_lock(); 21ea21252eddb3c Edward Cree 2020-06-29 1236 21ea21252eddb3c Edward Cree 2020-06-29 1237 if (efx->state != STATE_DISABLED) { 21ea21252eddb3c Edward Cree 2020-06-29 1238 efx->state = STATE_RECOVERY; 21ea21252eddb3c Edward Cree 2020-06-29 1239 efx->reset_pending = 0; 21ea21252eddb3c Edward Cree 2020-06-29 1240 21ea21252eddb3c Edward Cree 2020-06-29 1241 efx_device_detach_sync(efx); 21ea21252eddb3c Edward Cree 2020-06-29 1242 21ea21252eddb3c Edward Cree 2020-06-29 1243 efx_stop_all(efx); 21ea21252eddb3c Edward Cree 2020-06-29 1244 efx_disable_interrupts(efx); 21ea21252eddb3c Edward Cree 2020-06-29 1245 21ea21252eddb3c Edward Cree 2020-06-29 1246 status = PCI_ERS_RESULT_NEED_RESET; 21ea21252eddb3c Edward Cree 2020-06-29 1247 } else { 21ea21252eddb3c Edward Cree 2020-06-29 1248 /* If the interface is disabled we don't want to do anything 21ea21252eddb3c Edward Cree 2020-06-29 1249 * with it. 21ea21252eddb3c Edward Cree 2020-06-29 1250 */ 21ea21252eddb3c Edward Cree 2020-06-29 1251 status = PCI_ERS_RESULT_RECOVERED; 21ea21252eddb3c Edward Cree 2020-06-29 1252 } 21ea21252eddb3c Edward Cree 2020-06-29 1253 21ea21252eddb3c Edward Cree 2020-06-29 1254 rtnl_unlock(); 21ea21252eddb3c Edward Cree 2020-06-29 1255 21ea21252eddb3c Edward Cree 2020-06-29 1256 pci_disable_device(pdev); 21ea21252eddb3c Edward Cree 2020-06-29 1257 21ea21252eddb3c Edward Cree 2020-06-29 1258 return status; 21ea21252eddb3c Edward Cree 2020-06-29 1259 } 21ea21252eddb3c Edward Cree 2020-06-29 1260 :::::: The code at line 1227 was first introduced by commit :::::: 21ea21252eddb3cea56845f58f87208062799bef sfc: commonise PCI error handlers :::::: TO: Edward Cree <ecree(a)solarflare.com&gt; :::::: CC: David S. Miller <davem(a)davemloft.net&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org