[rppt:gfp-to-kmalloc/v0.1 132/238] drivers/s390/cio/cmf.c:550:25: warning: variable 'size' set but not used

[rppt:gfp-to-kmalloc/v0.1 132/238] drivers/s390/cio/cmf.c:550:25: warning: variable 'size' set but not used

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/rppt/linux.git gfp-to-kmalloc/v0.1
head:   cf8f69ff9142effba4d8d9a70a1a4f275044376c
commit: c2abb22c9f24b8570ba3fe1c115908b142514b99 [132/238] s390/cio: replace __get_free_pages() with kmalloc()
config: s390-allnoconfig-bpf (https://download.01.org/0day-ci/archive/20260518/202605182340.isVRQEhf-lkp@intel.com/config)
compiler: s390x-linux-gnu-gcc (Debian 14.2.0-19) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260518/202605182340.isVRQEhf-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/202605182340.isVRQEhf-lkp@intel.com/

All warnings (new ones prefixed by >>):

   drivers/s390/cio/cmf.c: In function 'free_cmb':
>> drivers/s390/cio/cmf.c:550:25: warning: variable 'size' set but not used [-Wunused-but-set-variable]
     550 |                 ssize_t size;
         |                         ^~~~


vim +/size +550 drivers/s390/cio/cmf.c

^1da177e4c3f41 Linus Torvalds            2005-04-16  532  
94bb063312d872 Cornelia Huck             2006-06-29  533  static void free_cmb(struct ccw_device *cdev)
^1da177e4c3f41 Linus Torvalds            2005-04-16  534  {
^1da177e4c3f41 Linus Torvalds            2005-04-16  535  	struct ccw_device_private *priv;
94bb063312d872 Cornelia Huck             2006-06-29  536  	struct cmb_data *cmb_data;
^1da177e4c3f41 Linus Torvalds            2005-04-16  537  
^1da177e4c3f41 Linus Torvalds            2005-04-16  538  	spin_lock(&cmb_area.lock);
^1da177e4c3f41 Linus Torvalds            2005-04-16  539  	spin_lock_irq(cdev->ccwlock);
^1da177e4c3f41 Linus Torvalds            2005-04-16  540  
94bb063312d872 Cornelia Huck             2006-06-29  541  	priv = cdev->private;
94bb063312d872 Cornelia Huck             2006-06-29  542  	cmb_data = priv->cmb;
^1da177e4c3f41 Linus Torvalds            2005-04-16  543  	priv->cmb = NULL;
94bb063312d872 Cornelia Huck             2006-06-29  544  	if (cmb_data)
94bb063312d872 Cornelia Huck             2006-06-29  545  		kfree(cmb_data->last_block);
94bb063312d872 Cornelia Huck             2006-06-29  546  	kfree(cmb_data);
^1da177e4c3f41 Linus Torvalds            2005-04-16  547  	list_del_init(&priv->cmb_list);
^1da177e4c3f41 Linus Torvalds            2005-04-16  548  
^1da177e4c3f41 Linus Torvalds            2005-04-16  549  	if (list_empty(&cmb_area.list)) {
^1da177e4c3f41 Linus Torvalds            2005-04-16 @550  		ssize_t size;
^1da177e4c3f41 Linus Torvalds            2005-04-16  551  		size = sizeof(struct cmb) * cmb_area.num_channels;
7b4ff87cbf3d25 Heiko Carstens            2016-06-20  552  		cmf_activate(NULL, CMF_OFF);
c2abb22c9f24b8 Mike Rapoport (Microsoft  2026-02-10  553) 		kfree((void *)(unsigned long)cmb_area.mem);
^1da177e4c3f41 Linus Torvalds            2005-04-16  554  		cmb_area.mem = NULL;
^1da177e4c3f41 Linus Torvalds            2005-04-16  555  	}
^1da177e4c3f41 Linus Torvalds            2005-04-16  556  	spin_unlock_irq(cdev->ccwlock);
^1da177e4c3f41 Linus Torvalds            2005-04-16  557  	spin_unlock(&cmb_area.lock);
^1da177e4c3f41 Linus Torvalds            2005-04-16  558  }
^1da177e4c3f41 Linus Torvalds            2005-04-16  559  

:::::: The code at line 550 was first introduced by commit
:::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2

:::::: TO: Linus Torvalds <torvalds@ppc970.osdl.org>
:::::: CC: Linus Torvalds <torvalds@ppc970.osdl.org>

--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki