[yiliu1765-iommufd:wip/iommufd_pasid-20240910 34/37] drivers/vfio/iommufd.c:208:13: warning: unused variable 'rc'

[yiliu1765-iommufd:wip/iommufd_pasid-20240910 34/37] drivers/vfio/iommufd.c:208:13: warning: unused variable 'rc'

[kernel test robot]

tree:   https://github.com/yiliu1765/iommufd.git wip/iommufd_pasid-20240910
head:   47bd94563684b36d40cac3c558ca963539dd5980
commit: 9e5b89906ecb80bb5fb6c18a8c20f4bc185884bf [34/37] vfio-iommufd: Support pasid [at|de]tach for physical VFIO devices
config: arc-randconfig-002-20240911 (https://download.01.org/0day-ci/archive/20240911/202409110414.5ZRILNpy-lkp@intel.com/config)
compiler: arc-elf-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240911/202409110414.5ZRILNpy-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/202409110414.5ZRILNpy-lkp@intel.com/

All warnings (new ones prefixed by >>):

   drivers/vfio/iommufd.c: In function 'vfio_iommufd_physical_pasid_detach_ioas':
>> drivers/vfio/iommufd.c:208:13: warning: unused variable 'rc' [-Wunused-variable]
     208 |         int rc;
         |             ^~


vim +/rc +208 drivers/vfio/iommufd.c

   204	
   205	void vfio_iommufd_physical_pasid_detach_ioas(struct vfio_device *vdev,
   206						     u32 pasid)
   207	{
 > 208		int rc;
   209	
   210		lockdep_assert_held(&vdev->dev_set->lock);
   211	
   212		if (WARN_ON(!vdev->iommufd_device))
   213			return;
   214	
   215		if (!ida_exists(&vdev->pasids, pasid))
   216			return;
   217	
   218		iommufd_device_pasid_detach(vdev->iommufd_device, pasid);
   219		ida_free(&vdev->pasids, pasid);
   220	}
   221	EXPORT_SYMBOL_GPL(vfio_iommufd_physical_pasid_detach_ioas);
   222	

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