Hi "David, Thank you for the patch! Yet something to improve: [auto build test ERROR on v5.16-rc4] [also build test ERROR on next-20211207] [cannot apply to helgaas-pci/next] [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] url: https://github.com/0day-ci/linux/commits/David-E-Box/PCI-ASPM-Add-ASPM-BI... base: 0fcfb00b28c0b7884635dacf38e46d60bf3d4eb1 config: arm64-randconfig-r022-20211207 (https://download.01.org/0day-ci/archive/20211208/202112081821.vVNb7kbL-lk...) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 097a1cb1d5ebb3a0ec4bcaed8ba3ff6a8e33c00a) 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 # install arm64 cross compiling tool for clang build # apt-get install binutils-aarch64-linux-gnu # https://github.com/0day-ci/linux/commit/78c85417651fe465aafee7ef1841ab756... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review David-E-Box/PCI-ASPM-Add-ASPM-BIOS-override-function/20211208-082303 git checkout 78c85417651fe465aafee7ef1841ab75619b165b # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash ./ drivers/ 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 >>): In file included from drivers/pci/controller/pci-aardvark.c:28: static inline int pcie_aspm_policy_override(struct pci_dev *dev) { return -EINVAL } ^ ; 1 error generated. -- In file included from drivers/pci/controller/dwc/pci-dra7xx.c:32: static inline int pcie_aspm_policy_override(struct pci_dev *dev) { return -EINVAL } ^ ; 1 error generated. -- In file included from drivers/pci/pcie/portdrv_core.c:19: static inline int pcie_aspm_policy_override(struct pci_dev *dev) { return -EINVAL } ^ ; 1 error generated. -- In file included from drivers/pci/hotplug/pci_hotplug_core.c:32: static inline int pcie_aspm_policy_override(struct pci_dev *dev) { return -EINVAL } ^ ; 1 error generated. -- In file included from drivers/xen/pci.c:18: static inline int pcie_aspm_policy_override(struct pci_dev *dev) { return -EINVAL } ^ ; 1 error generated. -- In file included from drivers/pci/controller/mobiveil/pcie-mobiveil.c:18: In file included from drivers/pci/controller/mobiveil/pcie-mobiveil.h:18: static inline int pcie_aspm_policy_override(struct pci_dev *dev) { return -EINVAL } ^ ; 1 error generated. vim +571 drivers/pci/controller/../pci.h 553 554 /* PCI error reporting and recovery */ 555 pci_ers_result_t pcie_do_recovery(struct pci_dev *dev, 556 pci_channel_state_t state, 557 pci_ers_result_t (*reset_subordinates)(struct pci_dev *pdev)); 558 559 bool pcie_wait_for_link(struct pci_dev *pdev, bool active); 560 #ifdef CONFIG_PCIEASPM 561 void pcie_aspm_init_link_state(struct pci_dev *pdev); 562 void pcie_aspm_exit_link_state(struct pci_dev *pdev); 563 void pcie_aspm_pm_state_change(struct pci_dev *pdev); 564 void pcie_aspm_powersave_config_link(struct pci_dev *pdev); 565 int pcie_aspm_policy_override(struct pci_dev *dev); 566 #else 567 static inline void pcie_aspm_init_link_state(struct pci_dev *pdev) { } 568 static inline void pcie_aspm_exit_link_state(struct pci_dev *pdev) { } 569 static inline void pcie_aspm_pm_state_change(struct pci_dev *pdev) { } 570 static inline void pcie_aspm_powersave_config_link(struct pci_dev *pdev) { } 572 #endif 573 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org