CC: [email protected]
BCC: [email protected]
TO: Liu Yi L <[email protected]>

tree:   https://github.com/luxis1999/iommufd iommufd-v5.17-rc6
head:   340b1a57e312d5c0622af07796235073b0d8dbf3
commit: a3273f1f88fe60e784d6e9916269a7d70fc6daf4 [24/27] iommufd: Add 
vfio_group_set/unset_iommufd helpers
:::::: branch date: 7 hours ago
:::::: commit date: 7 hours ago
config: i386-randconfig-c001 
(https://download.01.org/0day-ci/archive/20220319/[email protected]/config)
compiler: gcc-9 (Ubuntu 9.4.0-1ubuntu1~20.04) 9.4.0

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <[email protected]>
Reported-by: Julia Lawall <[email protected]>


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

a3273f1f88fe60 Nicolin Chen 2022-01-31  481  
a3273f1f88fe60 Nicolin Chen 2022-01-31  482  void vfio_group_unset_iommufd(void 
*iommufd, struct list_head *device_list)
a3273f1f88fe60 Nicolin Chen 2022-01-31  483  {
a3273f1f88fe60 Nicolin Chen 2022-01-31  484     struct iommufd_ctx *ictx = 
(struct iommufd_ctx *)iommufd;
a3273f1f88fe60 Nicolin Chen 2022-01-31  485     struct iommufd_ioas *ioas;
a3273f1f88fe60 Nicolin Chen 2022-01-31  486     struct vfio_device *device;
a3273f1f88fe60 Nicolin Chen 2022-01-31  487     unsigned int ioas_id;
a3273f1f88fe60 Nicolin Chen 2022-01-31  488  
a3273f1f88fe60 Nicolin Chen 2022-01-31  489     if (!ictx)
a3273f1f88fe60 Nicolin Chen 2022-01-31  490             return;
a3273f1f88fe60 Nicolin Chen 2022-01-31 @491     mutex_lock(&ictx->vfio_compat);
a3273f1f88fe60 Nicolin Chen 2022-01-31  492     ioas = get_compat_ioas(ictx);
a3273f1f88fe60 Nicolin Chen 2022-01-31  493     if (IS_ERR(ioas))
a3273f1f88fe60 Nicolin Chen 2022-01-31 @494             return;

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