Hi Yicong, Thank you for the patch! Yet something to improve: [auto build test ERROR on pci/next] [also build test ERROR on v5.5-rc6 next-20200110] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Yicong-Yang/PCI-Improve-link-speed-presentation-process/20200114-163536 base: https://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git next config: ia64-allnoconfig (attached as .config) compiler: ia64-linux-gcc (GCC) 7.5.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree GCC_VERSION=7.5.0 make.cross ARCH=ia64 If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): drivers/pci/pci-sysfs.o: In function `max_link_speed_show': >> pci-sysfs.c:(.text+0x1e01): undefined reference to `pci_bus_speed_strings' pci-sysfs.c:(.text+0x1e10): undefined reference to `pci_bus_speed_strings' drivers/pci/pci-sysfs.o: In function `current_link_speed_show': pci-sysfs.c:(.text+0x2070): undefined reference to `pci_bus_speed_strings' pci-sysfs.c:(.text+0x2080): undefined reference to `pci_bus_speed_strings' --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx Intel Corporation
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