Re: [PATCH v2] vfio/pci: Propagate ACPI notifications to user-space via eventfd

From: kernel test robot
Date: Tue Apr 25 2023 - 02:32:30 EST


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