116 	struct Scsi_Host *shost;  member
144 	data->shost = NULL;  in scsi_complete_async_scans()
215 	struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);  in scsi_alloc_sdev()  local
219 	sdev = kzalloc(sizeof(*sdev) + shost->transportt->device_size,  in scsi_alloc_sdev()
227 	sdev->host = shost;  in scsi_alloc_sdev()
264 	if (shost_use_blk_mq(shost))  in scsi_alloc_sdev()
280 				    sdev->host->cmd_per_lun, shost->bqt,  in scsi_alloc_sdev()
281 				    shost->hostt->tag_alloc_policy);  in scsi_alloc_sdev()
288 	if (shost->hostt->slave_alloc) {  in scsi_alloc_sdev()
289 		ret = shost->hostt->slave_alloc(sdev);  in scsi_alloc_sdev()
314 	struct Scsi_Host *shost = dev_to_shost(dev->parent);  in scsi_target_destroy()  local
320 	spin_lock_irqsave(shost->host_lock, flags);  in scsi_target_destroy()
321 	if (shost->hostt->target_destroy)  in scsi_target_destroy()
322 		shost->hostt->target_destroy(starget);  in scsi_target_destroy()
324 	spin_unlock_irqrestore(shost->host_lock, flags);  in scsi_target_destroy()
352 	struct Scsi_Host *shost = dev_to_shost(parent);  in __scsi_find_target()  local
356 	list_for_each_entry(starget, &shost->__targets, siblings) {  in __scsi_find_target()
415 	struct Scsi_Host *shost = dev_to_shost(parent);  in scsi_alloc_target()  local
419 		+ shost->transportt->target_size;  in scsi_alloc_target()
433 	dev_set_name(dev, "target%d:%d:%d", shost->host_no, channel, id);  in scsi_alloc_target()
445 	spin_lock_irqsave(shost->host_lock, flags);  in scsi_alloc_target()
451 	list_add_tail(&starget->siblings, &shost->__targets);  in scsi_alloc_target()
452 	spin_unlock_irqrestore(shost->host_lock, flags);  in scsi_alloc_target()
455 	if (shost->hostt->target_alloc) {  in scsi_alloc_target()
456 		error = shost->hostt->target_alloc(starget);  in scsi_alloc_target()
478 	spin_unlock_irqrestore(shost->host_lock, flags);  in scsi_alloc_target()
1058 	struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);  in scsi_probe_and_add_lun()  local
1088 			((shost->unchecked_isa_dma) ? __GFP_DMA : 0));  in scsi_probe_and_add_lun()
1161 	res = scsi_add_lun(sdev, result, &bflags, shost->async_scan);  in scsi_probe_and_add_lun()
1206 	struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);  in scsi_sequential_lun_scan()  local
1211 	max_dev_lun = min(max_scsi_luns, shost->max_lun);  in scsi_sequential_lun_scan()
1218 		max_dev_lun = shost->max_lun;  in scsi_sequential_lun_scan()
1245 		max_dev_lun = shost->max_lun;  in scsi_sequential_lun_scan()
1309 	struct Scsi_Host *shost = dev_to_shost(&starget->dev);  in scsi_report_lun_scan()  local
1324 	    (!(bflags & BLIST_REPORTLUN2) || shost->max_lun <= 8))  in scsi_report_lun_scan()
1342 		shost->host_no, sdev->channel, sdev->id);  in scsi_report_lun_scan()
1471 struct scsi_device *__scsi_add_device(struct Scsi_Host *shost, uint channel,  in __scsi_add_device()  argument
1475 	struct device *parent = &shost->shost_gendev;  in __scsi_add_device()
1486 	mutex_lock(&shost->scan_mutex);  in __scsi_add_device()
1487 	if (!shost->async_scan)  in __scsi_add_device()
1490 	if (scsi_host_scan_allowed(shost) && scsi_autopm_get_host(shost) == 0) {  in __scsi_add_device()
1492 		scsi_autopm_put_host(shost);  in __scsi_add_device()
1494 	mutex_unlock(&shost->scan_mutex);  in __scsi_add_device()
1537 	struct Scsi_Host *shost = dev_to_shost(parent);  in __scsi_scan_target()  local
1542 	if (shost->this_id == id)  in __scsi_scan_target()
1605 	struct Scsi_Host *shost = dev_to_shost(parent);  in scsi_scan_target()  local
1610 	mutex_lock(&shost->scan_mutex);  in scsi_scan_target()
1611 	if (!shost->async_scan)  in scsi_scan_target()
1614 	if (scsi_host_scan_allowed(shost) && scsi_autopm_get_host(shost) == 0) {  in scsi_scan_target()
1616 		scsi_autopm_put_host(shost);  in scsi_scan_target()
1618 	mutex_unlock(&shost->scan_mutex);  in scsi_scan_target()
1622 static void scsi_scan_channel(struct Scsi_Host *shost, unsigned int channel,  in scsi_scan_channel()  argument
1628 		for (id = 0; id < shost->max_id; ++id) {  in scsi_scan_channel()
1638 			if (shost->reverse_ordering)  in scsi_scan_channel()
1642 				order_id = shost->max_id - id - 1;  in scsi_scan_channel()
1645 			__scsi_scan_target(&shost->shost_gendev, channel,  in scsi_scan_channel()
1649 		__scsi_scan_target(&shost->shost_gendev, channel,  in scsi_scan_channel()
1653 int scsi_scan_host_selected(struct Scsi_Host *shost, unsigned int channel,  in scsi_scan_host_selected()  argument
1656 	SCSI_LOG_SCAN_BUS(3, shost_printk (KERN_INFO, shost,  in scsi_scan_host_selected()
1660 	if (((channel != SCAN_WILD_CARD) && (channel > shost->max_channel)) ||  in scsi_scan_host_selected()
1661 	    ((id != SCAN_WILD_CARD) && (id >= shost->max_id)) ||  in scsi_scan_host_selected()
1662 	    ((lun != SCAN_WILD_CARD) && (lun >= shost->max_lun)))  in scsi_scan_host_selected()
1665 	mutex_lock(&shost->scan_mutex);  in scsi_scan_host_selected()
1666 	if (!shost->async_scan)  in scsi_scan_host_selected()
1669 	if (scsi_host_scan_allowed(shost) && scsi_autopm_get_host(shost) == 0) {  in scsi_scan_host_selected()
1671 			for (channel = 0; channel <= shost->max_channel;  in scsi_scan_host_selected()
1673 				scsi_scan_channel(shost, channel, id, lun,  in scsi_scan_host_selected()
1676 			scsi_scan_channel(shost, channel, id, lun, rescan);  in scsi_scan_host_selected()
1677 		scsi_autopm_put_host(shost);  in scsi_scan_host_selected()
1679 	mutex_unlock(&shost->scan_mutex);  in scsi_scan_host_selected()
1684 static void scsi_sysfs_add_devices(struct Scsi_Host *shost)  in scsi_sysfs_add_devices()  argument
1687 	shost_for_each_device(sdev, shost) {  in scsi_sysfs_add_devices()
1694 		if (!scsi_host_scan_allowed(shost) ||  in scsi_sysfs_add_devices()
1710 static struct async_scan_data *scsi_prep_async_scan(struct Scsi_Host *shost)  in scsi_prep_async_scan()  argument
1718 	if (shost->async_scan) {  in scsi_prep_async_scan()
1719 		shost_printk(KERN_DEBUG, shost, "%s called twice\n", __func__);  in scsi_prep_async_scan()
1726 	data->shost = scsi_host_get(shost);  in scsi_prep_async_scan()
1727 	if (!data->shost)  in scsi_prep_async_scan()
1731 	mutex_lock(&shost->scan_mutex);  in scsi_prep_async_scan()
1732 	spin_lock_irqsave(shost->host_lock, flags);  in scsi_prep_async_scan()
1733 	shost->async_scan = 1;  in scsi_prep_async_scan()
1734 	spin_unlock_irqrestore(shost->host_lock, flags);  in scsi_prep_async_scan()
1735 	mutex_unlock(&shost->scan_mutex);  in scsi_prep_async_scan()
1760 	struct Scsi_Host *shost;  in scsi_finish_async_scan()  local
1766 	shost = data->shost;  in scsi_finish_async_scan()
1768 	mutex_lock(&shost->scan_mutex);  in scsi_finish_async_scan()
1770 	if (!shost->async_scan) {  in scsi_finish_async_scan()
1771 		shost_printk(KERN_INFO, shost, "%s called twice\n", __func__);  in scsi_finish_async_scan()
1773 		mutex_unlock(&shost->scan_mutex);  in scsi_finish_async_scan()
1779 	scsi_sysfs_add_devices(shost);  in scsi_finish_async_scan()
1781 	spin_lock_irqsave(shost->host_lock, flags);  in scsi_finish_async_scan()
1782 	shost->async_scan = 0;  in scsi_finish_async_scan()
1783 	spin_unlock_irqrestore(shost->host_lock, flags);  in scsi_finish_async_scan()
1785 	mutex_unlock(&shost->scan_mutex);  in scsi_finish_async_scan()
1796 	scsi_autopm_put_host(shost);  in scsi_finish_async_scan()
1797 	scsi_host_put(shost);  in scsi_finish_async_scan()
1801 static void do_scsi_scan_host(struct Scsi_Host *shost)  in do_scsi_scan_host()  argument
1803 	if (shost->hostt->scan_finished) {  in do_scsi_scan_host()
1805 		if (shost->hostt->scan_start)  in do_scsi_scan_host()
1806 			shost->hostt->scan_start(shost);  in do_scsi_scan_host()
1808 		while (!shost->hostt->scan_finished(shost, jiffies - start))  in do_scsi_scan_host()
1811 		scsi_scan_host_selected(shost, SCAN_WILD_CARD, SCAN_WILD_CARD,  in do_scsi_scan_host()
1819 	struct Scsi_Host *shost = data->shost;  in do_scan_async()  local
1821 	do_scsi_scan_host(shost);  in do_scan_async()
1829 void scsi_scan_host(struct Scsi_Host *shost)  in scsi_scan_host()  argument
1835 	if (scsi_autopm_get_host(shost) < 0)  in scsi_scan_host()
1838 	data = scsi_prep_async_scan(shost);  in scsi_scan_host()
1840 		do_scsi_scan_host(shost);  in scsi_scan_host()
1841 		scsi_autopm_put_host(shost);  in scsi_scan_host()
1854 void scsi_forget_host(struct Scsi_Host *shost)  in scsi_forget_host()  argument
1860 	spin_lock_irqsave(shost->host_lock, flags);  in scsi_forget_host()
1861 	list_for_each_entry(sdev, &shost->__devices, siblings) {  in scsi_forget_host()
1864 		spin_unlock_irqrestore(shost->host_lock, flags);  in scsi_forget_host()
1868 	spin_unlock_irqrestore(shost->host_lock, flags);  in scsi_forget_host()
1888 struct scsi_device *scsi_get_host_dev(struct Scsi_Host *shost)  in scsi_get_host_dev()  argument
1893 	mutex_lock(&shost->scan_mutex);  in scsi_get_host_dev()
1894 	if (!scsi_host_scan_allowed(shost))  in scsi_get_host_dev()
1896 	starget = scsi_alloc_target(&shost->shost_gendev, 0, shost->this_id);  in scsi_get_host_dev()
1907 	mutex_unlock(&shost->scan_mutex);  in scsi_get_host_dev()