Hi Keith, kernel test robot noticed the following build errors: [auto build test ERROR on pci/next] [also build test ERROR on pci/for-linus linus/master v6.10-rc3 next-20240607] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Keith-Busch/PCI-pciehp-fix-concurrent-sub-tree-removal-deadlock/20240611-060555 base: https://git.kernel.org/pub/scm/linux/kernel/git/pci/pci.git next patch link: https://lore.kernel.org/r/20240610220304.3162895-2-kbusch%40meta.com patch subject: [PATCH 1/2] PCI: pciehp: fix concurrent sub-tree removal deadlock config: arc-allnoconfig (https://download.01.org/0day-ci/archive/20240611/202406111416.XIxUrEy4-lkp@xxxxxxxxx/config) compiler: arc-elf-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240611/202406111416.XIxUrEy4-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202406111416.XIxUrEy4-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): In file included from drivers/pci/of.c:16: drivers/pci/pci.h: In function 'pci_dev_set_disconnected': >> drivers/pci/pci.h:416:9: error: implicit declaration of function 'pci_notify_disconnected'; did you mean 'pci_doe_disconnected'? [-Werror=implicit-function-declaration] 416 | pci_notify_disconnected(); | ^~~~~~~~~~~~~~~~~~~~~~~ | pci_doe_disconnected cc1: some warnings being treated as errors vim +416 drivers/pci/pci.h 411 412 static inline int pci_dev_set_disconnected(struct pci_dev *dev, void *unused) 413 { 414 pci_dev_set_io_state(dev, pci_channel_io_perm_failure); 415 pci_doe_disconnected(dev); > 416 pci_notify_disconnected(); 417 418 return 0; 419 } 420 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki