[android-common:android13-5.10-2026-10 1/1] drivers/vfio/vfio.c:527: warning: Function parameter or member 'device' not described in 'vfio_device_put'

[android-common:android13-5.10-2026-10 1/1] drivers/vfio/vfio.c:527: warning: Function parameter or member 'device' not described in 'vfio_device_put'

[kernel test robot]

tree:   https://android.googlesource.com/kernel/common android13-5.10-2026-10
head:   a4c2f82969bc5fa7fcc21ede4b690ece7ff72335
commit: a2fbf4acd28069d4922c33e4b5b0d58fc38073f8 [1/1] vfio: Split creation of a vfio_device into init and register ops
config: arm-randconfig-r2104-20261018 (https://download.01.org/0day-ci/archive/20261019/202610192036.15w73rFB-lkp@intel.com/config)
compiler: arm-linux-gnueabi-gcc (GCC) 7.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261019/202610192036.15w73rFB-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202610192036.15w73rFB-lkp@intel.com/

All warnings (new ones prefixed by >>):

   drivers/vfio/vfio.c:214: warning: Function parameter or member 'ops' not described in 'vfio_register_iommu_driver'
   drivers/vfio/vfio.c:263: warning: Function parameter or member 'group' not described in 'vfio_alloc_group_minor'
   drivers/vfio/vfio.c:283: warning: Function parameter or member 'container' not described in 'vfio_container_get'
   drivers/vfio/vfio.c:315: warning: Function parameter or member 'iommu_group' not described in 'vfio_create_group'
>> drivers/vfio/vfio.c:527: warning: Function parameter or member 'device' not described in 'vfio_device_put'
   drivers/vfio/vfio.c:633: warning: Function parameter or member 'group' not described in 'vfio_group_nb_add_dev'
   drivers/vfio/vfio.c:633: warning: Function parameter or member 'dev' not described in 'vfio_group_nb_add_dev'
>> drivers/vfio/vfio.c:745: warning: Function parameter or member 'device' not described in 'vfio_init_group_dev'
>> drivers/vfio/vfio.c:745: warning: Function parameter or member 'dev' not described in 'vfio_init_group_dev'
>> drivers/vfio/vfio.c:745: warning: Function parameter or member 'ops' not described in 'vfio_init_group_dev'
>> drivers/vfio/vfio.c:745: warning: Function parameter or member 'device_data' not described in 'vfio_init_group_dev'
   drivers/vfio/vfio.c:833: warning: Function parameter or member 'dev' not described in 'vfio_device_get_from_dev'
   drivers/vfio/vfio.c:982: warning: Function parameter or member 'container' not described in 'vfio_ioctl_check_extension'
   drivers/vfio/vfio.c:982: warning: Function parameter or member 'arg' not described in 'vfio_ioctl_check_extension'
   drivers/vfio/vfio.c:1253: warning: Function parameter or member 'group' not described in '__vfio_group_unset_container'
   drivers/vfio/vfio.c:1588: warning: Function parameter or member 'inode' not described in 'vfio_device_fops_release'
   drivers/vfio/vfio.c:1588: warning: Function parameter or member 'filep' not described in 'vfio_device_fops_release'
   drivers/vfio/vfio.c:1682: warning: Function parameter or member 'filep' not described in 'vfio_group_get_external_user'
   drivers/vfio/vfio.c:1719: warning: Function parameter or member 'dev' not described in 'vfio_group_get_external_user_from_dev'
   drivers/vfio/vfio.c:1779: warning: Function parameter or member 'caps' not described in 'vfio_info_cap_add'
   drivers/vfio/vfio.c:1779: warning: Function parameter or member 'size' not described in 'vfio_info_cap_add'
   drivers/vfio/vfio.c:1779: warning: Function parameter or member 'id' not described in 'vfio_info_cap_add'
   drivers/vfio/vfio.c:1779: warning: Function parameter or member 'version' not described in 'vfio_info_cap_add'
   drivers/vfio/vfio.c:2298: warning: Function parameter or member 'dev' not described in 'vfio_devnode'
   drivers/vfio/vfio.c:2298: warning: Function parameter or member 'mode' not described in 'vfio_devnode'


vim +527 drivers/vfio/vfio.c

7ed3ea8a71187a Kirti Wankhede          2016-11-17  521  
cba3345cc494ad Alex Williamson         2012-07-31  522  /**
cba3345cc494ad Alex Williamson         2012-07-31  523   * Device objects - create, release, get, put, search
cba3345cc494ad Alex Williamson         2012-07-31  524   */
cba3345cc494ad Alex Williamson         2012-07-31  525  /* Device reference always implies a group reference */
44f507163d9e51 Vijay Mohan Pandarathil 2013-03-11  526  void vfio_device_put(struct vfio_device *device)
cba3345cc494ad Alex Williamson         2012-07-31 @527  {
f54fa910e6cb5b Jason Gunthorpe         2021-03-30  528  	if (refcount_dec_and_test(&device->refcount))
f54fa910e6cb5b Jason Gunthorpe         2021-03-30  529  		complete(&device->comp);
cba3345cc494ad Alex Williamson         2012-07-31  530  }
44f507163d9e51 Vijay Mohan Pandarathil 2013-03-11  531  EXPORT_SYMBOL_GPL(vfio_device_put);
cba3345cc494ad Alex Williamson         2012-07-31  532  

:::::: The code at line 527 was first introduced by commit
:::::: cba3345cc494ad286ca8823f44b2c16cae496679 vfio: VFIO core

:::::: TO: Alex Williamson <alex.williamson@redhat.com>
:::::: CC: Alex Williamson <alex.williamson@redhat.com>

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https://github.com/intel/lkp-tests/wiki