tree: https://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground.git randconfig-v5.12 head: fd21c2581b744639b5207c11651ab40abf13701a commit: 130e1a398709fc631f3438fa57c450a4b392603e [397/597] pci: move PCI_PROBE_ONLY flag into host_bridge config: alpha-defconfig (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 # https://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground.git/commi... git remote add arnd-playground https://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground.git git fetch --no-tags arnd-playground randconfig-v5.12 git checkout 130e1a398709fc631f3438fa57c450a4b392603e # 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 errors (new ones prefixed by >>): arch/alpha/kernel/pci.c: In function 'pdev_save_srm_config': 213 | struct pci_host_bridge = pci_find_host_bridge(dev->bus); | ^ 216 | if (!alpha_using_srm || bridge->probe_only) | ^~~~~~ arch/alpha/kernel/pci.c:216:26: note: each undeclared identifier is reported only once for each function it appears in arch/alpha/kernel/pci.c: In function 'pcibios_fixup_bus': arch/alpha/kernel/pci.c:254:25: error: expected identifier or '(' before '=' token 254 | struct pci_host_bridge = pci_find_host_bridge(bus); | ^ arch/alpha/kernel/pci.c:256:6: error: 'bridge' undeclared (first use in this function) 256 | if (bridge->probe_only && dev && | ^~~~~~ arch/alpha/kernel/pci.c: At top level: arch/alpha/kernel/pci.c:283:1: warning: no previous prototype for 'pcibios_claim_one_bus' [-Wmissing-prototypes] 283 | pcibios_claim_one_bus(struct pci_bus *b) | ^~~~~~~~~~~~~~~~~~~~~ vim +213 arch/alpha/kernel/pci.c 209 210 static void pdev_save_srm_config(struct pci_dev *dev) 211 { 212 struct pdev_srm_saved_conf *tmp; 214 static int printed = 0; 215 217 return; 218 219 if (!printed) { 220 printk(KERN_INFO "pci: enabling save/restore of SRM state\n"); 221 printed = 1; 222 } 223 224 tmp = kmalloc(sizeof(*tmp), GFP_KERNEL); 225 if (!tmp) { 226 printk(KERN_ERR "%s: kmalloc() failed!\n", __func__); 227 return; 228 } 229 tmp->next = srm_saved_configs; 230 tmp->dev = dev; 231 232 pci_save_state(dev); 233 234 srm_saved_configs = tmp; 235 } 236 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org