Hi Grzegorz, kernel test robot noticed the following build warnings: [auto build test WARNING on awilliam-vfio/for-linus] [also build test WARNING on linus/master v6.3 next-20230424] [cannot apply to awilliam-vfio/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#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Grzegorz-Jaszczyk/vfio-pci-Propagate-ACPI-notifications-to-user-space-via-eventfd/20230425-002935 base: https://github.com/awilliam/linux-vfio.git for-linus patch link: https://lore.kernel.org/r/20230424162748.2711945-1-jaz%40semihalf.com patch subject: [PATCH v2] vfio/pci: Propagate ACPI notifications to user-space via eventfd config: i386-randconfig-s001 (https://download.01.org/0day-ci/archive/20230425/202304251437.hZVFw4GS-lkp@xxxxxxxxx/config) compiler: gcc-11 (Debian 11.3.0-8) 11.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.4-39-gce1a6720-dirty # https://github.com/intel-lab-lkp/linux/commit/62d759059cd5e6dab70052027e1b69c5d5cdc0f2 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Grzegorz-Jaszczyk/vfio-pci-Propagate-ACPI-notifications-to-user-space-via-eventfd/20230425-002935 git checkout 62d759059cd5e6dab70052027e1b69c5d5cdc0f2 # save the config file mkdir build_dir && cp config build_dir/.config make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=i386 olddefconfig make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=i386 SHELL=/bin/bash drivers/vfio/pci/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202304251437.hZVFw4GS-lkp@xxxxxxxxx/ sparse warnings: (new ones prefixed by >>) drivers/vfio/pci/vfio_pci_core.c:244:33: sparse: sparse: restricted pci_power_t degrades to integer drivers/vfio/pci/vfio_pci_core.c:244:41: sparse: sparse: restricted pci_power_t degrades to integer drivers/vfio/pci/vfio_pci_core.c:248:25: sparse: sparse: restricted pci_power_t degrades to integer drivers/vfio/pci/vfio_pci_core.c:248:43: sparse: sparse: restricted pci_power_t degrades to integer drivers/vfio/pci/vfio_pci_core.c:248:56: sparse: sparse: restricted pci_power_t degrades to integer drivers/vfio/pci/vfio_pci_core.c:248:65: sparse: sparse: restricted pci_power_t degrades to integer drivers/vfio/pci/vfio_pci_core.c:253:25: sparse: sparse: restricted pci_power_t degrades to integer drivers/vfio/pci/vfio_pci_core.c:253:44: sparse: sparse: restricted pci_power_t degrades to integer drivers/vfio/pci/vfio_pci_core.c:253:57: sparse: sparse: restricted pci_power_t degrades to integer drivers/vfio/pci/vfio_pci_core.c:253:66: sparse: sparse: restricted pci_power_t degrades to integer drivers/vfio/pci/vfio_pci_core.c:261:39: sparse: sparse: restricted pci_power_t degrades to integer drivers/vfio/pci/vfio_pci_core.c:261:58: sparse: sparse: restricted pci_power_t degrades to integer >> drivers/vfio/pci/vfio_pci_core.c:709:6: sparse: sparse: symbol 'vfio_pci_acpi_notify_close_device' was not declared. Should it be static? -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
