diff options
Diffstat (limited to 'drivers/scsi/scsi.c')
| -rw-r--r-- | drivers/scsi/scsi.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c index 82c7b0ab4047..63e5224eee0a 100644 --- a/drivers/scsi/scsi.c +++ b/drivers/scsi/scsi.c @@ -1083,6 +1083,28 @@ struct scsi_device *__scsi_iterate_devices(struct Scsi_Host *shost, EXPORT_SYMBOL(__scsi_iterate_devices); /** + * starget_for_each_device - helper to walk all devices of a target + * @starget: target whose devices we want to iterate over. + * + * This traverses over each devices of @shost. The devices have + * a reference that must be released by scsi_host_put when breaking + * out of the loop. + */ +void starget_for_each_device(struct scsi_target *starget, void * data, + void (*fn)(struct scsi_device *, void *)) +{ + struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); + struct scsi_device *sdev; + + shost_for_each_device(sdev, shost) { + if ((sdev->channel == starget->channel) && + (sdev->id == starget->id)) + fn(sdev, data); + } +} +EXPORT_SYMBOL(starget_for_each_device); + +/** * scsi_device_lookup - find a device given the host (UNLOCKED) * @shost: SCSI host pointer * @channel: SCSI channel (zero if only one channel) |