115 	struct Scsi_Host *shost;  member
143 	data->shost = NULL;  in scsi_complete_async_scans()
214 	struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);  in scsi_alloc_sdev()  local
218 	sdev = kzalloc(sizeof(*sdev) + shost->transportt->device_size,  in scsi_alloc_sdev()
226 	sdev->host = shost;  in scsi_alloc_sdev()
263 	if (shost_use_blk_mq(shost))  in scsi_alloc_sdev()
278 	    (shost->bqt || shost->hostt->use_blk_tags)) {  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()
287 	if (shost->hostt->slave_alloc) {  in scsi_alloc_sdev()
288 		ret = shost->hostt->slave_alloc(sdev);  in scsi_alloc_sdev()
313 	struct Scsi_Host *shost = dev_to_shost(dev->parent);  in scsi_target_destroy()  local
318 	spin_lock_irqsave(shost->host_lock, flags);  in scsi_target_destroy()
319 	if (shost->hostt->target_destroy)  in scsi_target_destroy()
320 		shost->hostt->target_destroy(starget);  in scsi_target_destroy()
322 	spin_unlock_irqrestore(shost->host_lock, flags);  in scsi_target_destroy()
350 	struct Scsi_Host *shost = dev_to_shost(parent);  in __scsi_find_target()  local
354 	list_for_each_entry(starget, &shost->__targets, siblings) {  in __scsi_find_target()
413 	struct Scsi_Host *shost = dev_to_shost(parent);  in scsi_alloc_target()  local
417 		+ shost->transportt->target_size;  in scsi_alloc_target()
431 	dev_set_name(dev, "target%d:%d:%d", shost->host_no, channel, id);  in scsi_alloc_target()
443 	spin_lock_irqsave(shost->host_lock, flags);  in scsi_alloc_target()
449 	list_add_tail(&starget->siblings, &shost->__targets);  in scsi_alloc_target()
450 	spin_unlock_irqrestore(shost->host_lock, flags);  in scsi_alloc_target()
453 	if (shost->hostt->target_alloc) {  in scsi_alloc_target()
454 		error = shost->hostt->target_alloc(starget);  in scsi_alloc_target()
476 	spin_unlock_irqrestore(shost->host_lock, flags);  in scsi_alloc_target()
1053 	struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);  in scsi_probe_and_add_lun()  local
1083 			((shost->unchecked_isa_dma) ? __GFP_DMA : 0));  in scsi_probe_and_add_lun()
1156 	res = scsi_add_lun(sdev, result, &bflags, shost->async_scan);  in scsi_probe_and_add_lun()
1201 	struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);  in scsi_sequential_lun_scan()  local
1206 	max_dev_lun = min(max_scsi_luns, shost->max_lun);  in scsi_sequential_lun_scan()
1213 		max_dev_lun = shost->max_lun;  in scsi_sequential_lun_scan()
1240 		max_dev_lun = shost->max_lun;  in scsi_sequential_lun_scan()
1366 	struct Scsi_Host *shost = dev_to_shost(&starget->dev);  in scsi_report_lun_scan()  local
1381 	    (!(bflags & BLIST_REPORTLUN2) || shost->max_lun <= 8))  in scsi_report_lun_scan()
1399 		shost->host_no, sdev->channel, sdev->id);  in scsi_report_lun_scan()
1528 struct scsi_device *__scsi_add_device(struct Scsi_Host *shost, uint channel,  in __scsi_add_device()  argument
1532 	struct device *parent = &shost->shost_gendev;  in __scsi_add_device()
1543 	mutex_lock(&shost->scan_mutex);  in __scsi_add_device()
1544 	if (!shost->async_scan)  in __scsi_add_device()
1547 	if (scsi_host_scan_allowed(shost) && scsi_autopm_get_host(shost) == 0) {  in __scsi_add_device()
1549 		scsi_autopm_put_host(shost);  in __scsi_add_device()
1551 	mutex_unlock(&shost->scan_mutex);  in __scsi_add_device()
1594 	struct Scsi_Host *shost = dev_to_shost(parent);  in __scsi_scan_target()  local
1599 	if (shost->this_id == id)  in __scsi_scan_target()
1662 	struct Scsi_Host *shost = dev_to_shost(parent);  in scsi_scan_target()  local
1667 	mutex_lock(&shost->scan_mutex);  in scsi_scan_target()
1668 	if (!shost->async_scan)  in scsi_scan_target()
1671 	if (scsi_host_scan_allowed(shost) && scsi_autopm_get_host(shost) == 0) {  in scsi_scan_target()
1673 		scsi_autopm_put_host(shost);  in scsi_scan_target()
1675 	mutex_unlock(&shost->scan_mutex);  in scsi_scan_target()
1679 static void scsi_scan_channel(struct Scsi_Host *shost, unsigned int channel,  in scsi_scan_channel()  argument
1685 		for (id = 0; id < shost->max_id; ++id) {  in scsi_scan_channel()
1695 			if (shost->reverse_ordering)  in scsi_scan_channel()
1699 				order_id = shost->max_id - id - 1;  in scsi_scan_channel()
1702 			__scsi_scan_target(&shost->shost_gendev, channel,  in scsi_scan_channel()
1706 		__scsi_scan_target(&shost->shost_gendev, channel,  in scsi_scan_channel()
1710 int scsi_scan_host_selected(struct Scsi_Host *shost, unsigned int channel,  in scsi_scan_host_selected()  argument
1713 	SCSI_LOG_SCAN_BUS(3, shost_printk (KERN_INFO, shost,  in scsi_scan_host_selected()
1717 	if (((channel != SCAN_WILD_CARD) && (channel > shost->max_channel)) ||  in scsi_scan_host_selected()
1718 	    ((id != SCAN_WILD_CARD) && (id >= shost->max_id)) ||  in scsi_scan_host_selected()
1719 	    ((lun != SCAN_WILD_CARD) && (lun >= shost->max_lun)))  in scsi_scan_host_selected()
1722 	mutex_lock(&shost->scan_mutex);  in scsi_scan_host_selected()
1723 	if (!shost->async_scan)  in scsi_scan_host_selected()
1726 	if (scsi_host_scan_allowed(shost) && scsi_autopm_get_host(shost) == 0) {  in scsi_scan_host_selected()
1728 			for (channel = 0; channel <= shost->max_channel;  in scsi_scan_host_selected()
1730 				scsi_scan_channel(shost, channel, id, lun,  in scsi_scan_host_selected()
1733 			scsi_scan_channel(shost, channel, id, lun, rescan);  in scsi_scan_host_selected()
1734 		scsi_autopm_put_host(shost);  in scsi_scan_host_selected()
1736 	mutex_unlock(&shost->scan_mutex);  in scsi_scan_host_selected()
1741 static void scsi_sysfs_add_devices(struct Scsi_Host *shost)  in scsi_sysfs_add_devices()  argument
1744 	shost_for_each_device(sdev, shost) {  in scsi_sysfs_add_devices()
1751 		if (!scsi_host_scan_allowed(shost) ||  in scsi_sysfs_add_devices()
1767 static struct async_scan_data *scsi_prep_async_scan(struct Scsi_Host *shost)  in scsi_prep_async_scan()  argument
1775 	if (shost->async_scan) {  in scsi_prep_async_scan()
1776 		shost_printk(KERN_INFO, shost, "%s called twice\n", __func__);  in scsi_prep_async_scan()
1784 	data->shost = scsi_host_get(shost);  in scsi_prep_async_scan()
1785 	if (!data->shost)  in scsi_prep_async_scan()
1789 	mutex_lock(&shost->scan_mutex);  in scsi_prep_async_scan()
1790 	spin_lock_irqsave(shost->host_lock, flags);  in scsi_prep_async_scan()
1791 	shost->async_scan = 1;  in scsi_prep_async_scan()
1792 	spin_unlock_irqrestore(shost->host_lock, flags);  in scsi_prep_async_scan()
1793 	mutex_unlock(&shost->scan_mutex);  in scsi_prep_async_scan()
1818 	struct Scsi_Host *shost;  in scsi_finish_async_scan()  local
1824 	shost = data->shost;  in scsi_finish_async_scan()
1826 	mutex_lock(&shost->scan_mutex);  in scsi_finish_async_scan()
1828 	if (!shost->async_scan) {  in scsi_finish_async_scan()
1829 		shost_printk(KERN_INFO, shost, "%s called twice\n", __func__);  in scsi_finish_async_scan()
1831 		mutex_unlock(&shost->scan_mutex);  in scsi_finish_async_scan()
1837 	scsi_sysfs_add_devices(shost);  in scsi_finish_async_scan()
1839 	spin_lock_irqsave(shost->host_lock, flags);  in scsi_finish_async_scan()
1840 	shost->async_scan = 0;  in scsi_finish_async_scan()
1841 	spin_unlock_irqrestore(shost->host_lock, flags);  in scsi_finish_async_scan()
1843 	mutex_unlock(&shost->scan_mutex);  in scsi_finish_async_scan()
1854 	scsi_autopm_put_host(shost);  in scsi_finish_async_scan()
1855 	scsi_host_put(shost);  in scsi_finish_async_scan()
1859 static void do_scsi_scan_host(struct Scsi_Host *shost)  in do_scsi_scan_host()  argument
1861 	if (shost->hostt->scan_finished) {  in do_scsi_scan_host()
1863 		if (shost->hostt->scan_start)  in do_scsi_scan_host()
1864 			shost->hostt->scan_start(shost);  in do_scsi_scan_host()
1866 		while (!shost->hostt->scan_finished(shost, jiffies - start))  in do_scsi_scan_host()
1869 		scsi_scan_host_selected(shost, SCAN_WILD_CARD, SCAN_WILD_CARD,  in do_scsi_scan_host()
1877 	struct Scsi_Host *shost = data->shost;  in do_scan_async()  local
1879 	do_scsi_scan_host(shost);  in do_scan_async()
1887 void scsi_scan_host(struct Scsi_Host *shost)  in scsi_scan_host()  argument
1893 	if (scsi_autopm_get_host(shost) < 0)  in scsi_scan_host()
1896 	data = scsi_prep_async_scan(shost);  in scsi_scan_host()
1898 		do_scsi_scan_host(shost);  in scsi_scan_host()
1899 		scsi_autopm_put_host(shost);  in scsi_scan_host()
1912 void scsi_forget_host(struct Scsi_Host *shost)  in scsi_forget_host()  argument
1918 	spin_lock_irqsave(shost->host_lock, flags);  in scsi_forget_host()
1919 	list_for_each_entry(sdev, &shost->__devices, siblings) {  in scsi_forget_host()
1922 		spin_unlock_irqrestore(shost->host_lock, flags);  in scsi_forget_host()
1926 	spin_unlock_irqrestore(shost->host_lock, flags);  in scsi_forget_host()
1946 struct scsi_device *scsi_get_host_dev(struct Scsi_Host *shost)  in scsi_get_host_dev()  argument
1951 	mutex_lock(&shost->scan_mutex);  in scsi_get_host_dev()
1952 	if (!scsi_host_scan_allowed(shost))  in scsi_get_host_dev()
1954 	starget = scsi_alloc_target(&shost->shost_gendev, 0, shost->this_id);  in scsi_get_host_dev()
1965 	mutex_unlock(&shost->scan_mutex);  in scsi_get_host_dev()