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

From: kernel test robot
Date: Thu Sep 28 2023 - 07:42:16 EST


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@xxxxxxxxx/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@xxxxxxxxx/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@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202309281916.qy89onYp-lkp@xxxxxxxxx/

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

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