linux-kernel - Re: [PATCH v2 1/4] scsi: core: Add new helper to iterate all devices of host

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Date:   Thu, 28 Sep 2023 19:41:13 +0800
From:   kernel test robot <lkp@...el.com>
To:     Wenchao Hao <haowenchao2@...wei.com>,
        "James E . J . Bottomley" <jejb@...ux.ibm.com>,
        "Martin K . Petersen" <martin.petersen@...cle.com>,
        linux-scsi@...r.kernel.org
Cc:     oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
        louhongxiang@...wei.com, Wenchao Hao <haowenchao2@...wei.com>
Subject: Re: [PATCH v2 1/4] scsi: core: Add new helper to iterate all devices
 of host

Hi Wenchao,

kernel test robot noticed the following build warnings:

[auto build test WARNING on mkp-scsi/for-next]
[also build test WARNING on jejb-scsi/for-next linus/master v6.6-rc3 next-20230928]
[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/Wenchao-Hao/scsi-core-Add-new-helper-to-iterate-all-devices-of-host/20230928-153648
base:   https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git for-next
patch link:    https://lore.kernel.org/r/20230928073543.3496394-2-haowenchao2%40huawei.com
patch subject: [PATCH v2 1/4] scsi: core: Add new helper to iterate all devices of host
config: m68k-allyesconfig (https://download.01.org/0day-ci/archive/20230928/202309281916.qy89onYp-lkp@intel.com/config)
compiler: m68k-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20230928/202309281916.qy89onYp-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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202309281916.qy89onYp-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/scsi/scsi.c:762: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * helper for shost_for_each_device, see that for documentation


vim +762 drivers/scsi/scsi.c

   760	
   761	/**
 > 762	 * helper for shost_for_each_device, see that for documentation
   763	 * @skip_deleted: if true, sdev in progress of removing would be skipped
   764	 */
   765	struct scsi_device *__scsi_iterate_devices(struct Scsi_Host *shost,
   766						   struct scsi_device *prev,
   767						   bool skip_deleted)
   768	{
   769		struct list_head *list = (prev ? &prev->siblings : &shost->__devices);
   770		struct scsi_device *next = NULL;
   771		unsigned long flags;
   772	
   773		spin_lock_irqsave(shost->host_lock, flags);
   774		while (list->next != &shost->__devices) {
   775			next = list_entry(list->next, struct scsi_device, siblings);
   776			/* skip devices that we can't get a reference to */
   777			if (!__scsi_device_get(next, skip_deleted))
   778				break;
   779			next = NULL;
   780			list = list->next;
   781		}
   782		spin_unlock_irqrestore(shost->host_lock, flags);
   783	
   784		if (prev)
   785			scsi_device_put(prev);
   786		return next;
   787	}
   788	EXPORT_SYMBOL(__scsi_iterate_devices);
   789	

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