Hi "Rafael, I love your patch! Perhaps something to improve: [auto build test WARNING on pci/next] [also build test WARNING on pm/linux-next v5.14-rc6 next-20210820] [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/Rafael-J-Wysocki/PCI-VMD-ACPI-Make-ACPI-companion-lookup-work-for-VMD-bus/20210821-001443 base: https://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git next config: i386-randconfig-s032-20210821 (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.3-348-gf0e6938b-dirty # https://github.com/0day-ci/linux/commit/0722ac93bc98deb9a9c445d7dfb78e7e068c9cb0 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Rafael-J-Wysocki/PCI-VMD-ACPI-Make-ACPI-companion-lookup-work-for-VMD-bus/20210821-001443 git checkout 0722ac93bc98deb9a9c445d7dfb78e7e068c9cb0 # save the attached .config to linux build tree make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=i386 SHELL=/bin/bash drivers/pci/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> sparse warnings: (new ones prefixed by >>) drivers/pci/pci-acpi.c:1019:64: sparse: sparse: restricted pci_power_t degrades to integer >> drivers/pci/pci-acpi.c:1164:1: sparse: sparse: symbol 'pci_acpi_companion_lookup_key' was not declared. Should it be static? Please review and possibly fold the followup patch. --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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