CC: kbuild-...@lists.01.org
BCC: l...@intel.com
TO: Liu Yi L <yi.l....@intel.com>

tree:   https://github.com/luxis1999/iommufd iommufd-v5.18-rc4-nesting
head:   e642747ca46aa568063964b5b5101e35258ea0d5
commit: f3c739aa1a7a8ff80f9997f02d36f2a63f53a251 [37/70] iommufd: Add 
vfio_group_set/unset_iommufd helpers
:::::: branch date: 2 days ago
:::::: commit date: 6 weeks ago
config: x86_64-randconfig-c002-20220613 
(https://download.01.org/0day-ci/archive/20220615/202206151427.efsdh9ac-...@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-3) 11.3.0

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <l...@intel.com>
Reported-by: Julia Lawall <julia.law...@lip6.fr>


cocci warnings: (new ones prefixed by >>)
>> drivers/iommu/iommufd/vfio_compat.c:494:2-8: preceding lock on line 491

vim +494 drivers/iommu/iommufd/vfio_compat.c

f3c739aa1a7a8f Nicolin Chen 2022-01-31  481  
f3c739aa1a7a8f Nicolin Chen 2022-01-31  482  void vfio_group_unset_iommufd(void 
*iommufd, struct list_head *device_list)
f3c739aa1a7a8f Nicolin Chen 2022-01-31  483  {
f3c739aa1a7a8f Nicolin Chen 2022-01-31  484     struct iommufd_ctx *ictx = 
(struct iommufd_ctx *)iommufd;
f3c739aa1a7a8f Nicolin Chen 2022-01-31  485     struct iommufd_ioas *ioas;
f3c739aa1a7a8f Nicolin Chen 2022-01-31  486     struct vfio_device *device;
f3c739aa1a7a8f Nicolin Chen 2022-01-31  487     unsigned int ioas_id;
f3c739aa1a7a8f Nicolin Chen 2022-01-31  488  
f3c739aa1a7a8f Nicolin Chen 2022-01-31  489     if (!ictx)
f3c739aa1a7a8f Nicolin Chen 2022-01-31  490             return;
f3c739aa1a7a8f Nicolin Chen 2022-01-31 @491     mutex_lock(&ictx->vfio_compat);
f3c739aa1a7a8f Nicolin Chen 2022-01-31  492     ioas = get_compat_ioas(ictx);
f3c739aa1a7a8f Nicolin Chen 2022-01-31  493     if (IS_ERR(ioas))
f3c739aa1a7a8f Nicolin Chen 2022-01-31 @494             return;

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp
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