Re: [PATCH] virtio: only reset device and restore status if needed in device resume

[kernel test robot <lkp@intel.com>]

Hi,

kernel test robot noticed the following build errors:

[auto build test ERROR on char-misc/char-misc-testing]
[also build test ERROR on char-misc/char-misc-next char-misc/char-misc-linus mst-vhost/linux-next axboe-block/for-next herbert-cryptodev-2.6/master andi-shyti/i2c/i2c-host mkp-scsi/for-next jejb-scsi/for-next tiwai-sound/for-next tiwai-sound/for-linus linus/master v6.12-rc5 next-20241031]
[cannot apply to herbert-crypto-2.6/master]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/qiang4-zhang-linux-intel-com/virtio-only-reset-device-and-restore-status-if-needed-in-device-resume/20241031-111315
base:   char-misc/char-misc-testing
patch link:    https://lore.kernel.org/r/20241031030847.3253873-1-qiang4.zhang%40linux.intel.com
patch subject: [PATCH] virtio: only reset device and restore status if needed in device resume
config: x86_64-buildonly-randconfig-003-20241031 (https://download.01.org/0day-ci/archive/20241031/202410312128.7ymyjL4j-lkp@intel.com/config)
compiler: clang version 19.1.3 (https://github.com/llvm/llvm-project ab51eccf88f5321e7c60591c5546b254b6afab99)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241031/202410312128.7ymyjL4j-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/202410312128.7ymyjL4j-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from drivers/i2c/busses/i2c-virtio.c:14:
   In file included from include/linux/i2c.h:19:
   In file included from include/linux/regulator/consumer.h:35:
   In file included from include/linux/suspend.h:5:
   In file included from include/linux/swap.h:9:
   In file included from include/linux/memcontrol.h:21:
   In file included from include/linux/mm.h:2213:
   include/linux/vmstat.h:518:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
     518 |         return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
         |                               ~~~~~~~~~~~ ^ ~~~
>> drivers/i2c/busses/i2c-virtio.c:256:8: error: call to undeclared function 'virtio_device_reset_and_restore_status'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     256 |         ret = virtio_device_reset_and_restore_status(vdev);
         |               ^
   1 warning and 1 error generated.


vim +/virtio_device_reset_and_restore_status +256 drivers/i2c/busses/i2c-virtio.c

   251	
   252	static int virtio_i2c_restore(struct virtio_device *vdev)
   253	{
   254		int ret;
   255	
 > 256		ret = virtio_device_reset_and_restore_status(vdev);
   257		if (ret)
   258			return ret;
   259	
   260		return virtio_i2c_setup_vqs(vdev->priv);
   261	}
   262	

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