615 				       struct domain_device *child,  in sas_ex_get_linkrate()  argument
622 	child->pathways = 0;  in sas_ex_get_linkrate()
634 		    SAS_ADDR(child->sas_addr)) {  in sas_ex_get_linkrate()
636 			child->min_linkrate = min(parent->min_linkrate,  in sas_ex_get_linkrate()
638 			child->max_linkrate = max(parent->max_linkrate,  in sas_ex_get_linkrate()
640 			child->pathways++;  in sas_ex_get_linkrate()
644 	child->linkrate = min(parent_phy->linkrate, child->max_linkrate);  in sas_ex_get_linkrate()
645 	child->pathways = min(child->pathways, parent->pathways);  in sas_ex_get_linkrate()
653 	struct domain_device *child = NULL;  in sas_ex_discover_end_dev()  local
660 	child = kzalloc(sizeof(*child), GFP_KERNEL);  in sas_ex_discover_end_dev()
661 	if (!child)  in sas_ex_discover_end_dev()
664 	child->parent = parent;  in sas_ex_discover_end_dev()
665 	child->port   = parent->port;  in sas_ex_discover_end_dev()
666 	child->iproto = phy->attached_iproto;  in sas_ex_discover_end_dev()
667 	memcpy(child->sas_addr, phy->attached_sas_addr, SAS_ADDR_SIZE);  in sas_ex_discover_end_dev()
668 	sas_hash_addr(child->hashed_sas_addr, child->sas_addr);  in sas_ex_discover_end_dev()
678 	sas_ex_get_linkrate(parent, child, phy);  in sas_ex_discover_end_dev()
682 		child->dev_type = SATA_DEV;  in sas_ex_discover_end_dev()
684 			child->tproto = phy->attached_tproto;  in sas_ex_discover_end_dev()
686 			child->tproto |= SATA_DEV;  in sas_ex_discover_end_dev()
688 					      &child->sata_dev.rps_resp);  in sas_ex_discover_end_dev()
695 		memcpy(child->frame_rcvd, &child->sata_dev.rps_resp.rps.fis,  in sas_ex_discover_end_dev()
702 		sas_init_dev(child);  in sas_ex_discover_end_dev()
704 		child->rphy = rphy;  in sas_ex_discover_end_dev()
707 		list_add_tail(&child->dev_list_node, &parent->port->dev_list);  in sas_ex_discover_end_dev()
710 		res = sas_discover_sata(child);  in sas_ex_discover_end_dev()
714 				    SAS_ADDR(child->sas_addr),  in sas_ex_discover_end_dev()
721 		child->dev_type = SAS_END_DEV;  in sas_ex_discover_end_dev()
726 		child->tproto = phy->attached_tproto;  in sas_ex_discover_end_dev()
727 		sas_init_dev(child);  in sas_ex_discover_end_dev()
729 		child->rphy = rphy;  in sas_ex_discover_end_dev()
730 		sas_fill_in_rphy(child, rphy);  in sas_ex_discover_end_dev()
733 		list_add_tail(&child->dev_list_node, &parent->port->dev_list);  in sas_ex_discover_end_dev()
736 		res = sas_discover_end_dev(child);  in sas_ex_discover_end_dev()
740 				    SAS_ADDR(child->sas_addr),  in sas_ex_discover_end_dev()
751 	list_add_tail(&child->siblings, &parent_ex->children);  in sas_ex_discover_end_dev()
752 	return child;  in sas_ex_discover_end_dev()
755 	sas_rphy_free(child->rphy);  in sas_ex_discover_end_dev()
756 	child->rphy = NULL;  in sas_ex_discover_end_dev()
759 	list_del(&child->dev_list_node);  in sas_ex_discover_end_dev()
765 	kfree(child);  in sas_ex_discover_end_dev()
798 	struct domain_device *child = NULL;  in sas_ex_discover_expander()  local
812 	child = kzalloc(sizeof(*child), GFP_KERNEL);  in sas_ex_discover_expander()
813 	if (!child)  in sas_ex_discover_expander()
835 	child->rphy = rphy;  in sas_ex_discover_expander()
837 	child->dev_type = phy->attached_dev_type;  in sas_ex_discover_expander()
838 	child->parent = parent;  in sas_ex_discover_expander()
839 	child->port = port;  in sas_ex_discover_expander()
840 	child->iproto = phy->attached_iproto;  in sas_ex_discover_expander()
841 	child->tproto = phy->attached_tproto;  in sas_ex_discover_expander()
842 	memcpy(child->sas_addr, phy->attached_sas_addr, SAS_ADDR_SIZE);  in sas_ex_discover_expander()
843 	sas_hash_addr(child->hashed_sas_addr, child->sas_addr);  in sas_ex_discover_expander()
844 	sas_ex_get_linkrate(parent, child, phy);  in sas_ex_discover_expander()
848 	sas_init_dev(child);  in sas_ex_discover_expander()
849 	sas_fill_in_rphy(child, rphy);  in sas_ex_discover_expander()
853 	list_add_tail(&child->dev_list_node, &parent->port->dev_list);  in sas_ex_discover_expander()
856 	res = sas_discover_expander(child);  in sas_ex_discover_expander()
859 		list_del(&child->dev_list_node);  in sas_ex_discover_expander()
861 		kfree(child);  in sas_ex_discover_expander()
864 	list_add_tail(&child->siblings, &parent->ex_dev.children);  in sas_ex_discover_expander()
865 	return child;  in sas_ex_discover_expander()
872 	struct domain_device *child = NULL;  in sas_ex_discover_dev()  local
937 		child = sas_ex_discover_end_dev(dev, phy_id);  in sas_ex_discover_dev()
954 		child = sas_ex_discover_expander(dev, phy_id);  in sas_ex_discover_dev()
960 	if (child) {  in sas_ex_discover_dev()
972 			    SAS_ADDR(child->sas_addr)) {  in sas_ex_discover_dev()
1013 	struct domain_device *child;  in sas_check_level_subtractive_boundary()  local
1016 	list_for_each_entry(child, &ex->children, siblings) {  in sas_check_level_subtractive_boundary()
1017 		if (child->dev_type != EDGE_DEV &&  in sas_check_level_subtractive_boundary()
1018 		    child->dev_type != FANOUT_DEV)  in sas_check_level_subtractive_boundary()
1021 			sas_find_sub_addr(child, sub_addr);  in sas_check_level_subtractive_boundary()
1026 			if (sas_find_sub_addr(child, s2) &&  in sas_check_level_subtractive_boundary()
1033 					    SAS_ADDR(child->sas_addr),  in sas_check_level_subtractive_boundary()
1037 				sas_ex_disable_port(child, s2);  in sas_check_level_subtractive_boundary()
1127 static void sas_print_parent_topology_bug(struct domain_device *child,  in sas_print_parent_topology_bug()  argument
1140 	struct domain_device *parent = child->parent;  in sas_print_parent_topology_bug()
1150 		   ex_type[child->dev_type],  in sas_print_parent_topology_bug()
1151 		   SAS_ADDR(child->sas_addr),  in sas_print_parent_topology_bug()
1152 		   child->ex_dev.t2t_supp,  in sas_print_parent_topology_bug()
1159 static int sas_check_eeds(struct domain_device *child,  in sas_check_eeds()  argument
1164 	struct domain_device *parent = child->parent;  in sas_check_eeds()
1172 			    SAS_ADDR(child->sas_addr),  in sas_check_eeds()
1178 		memcpy(parent->port->disc.eeds_b, child->sas_addr,  in sas_check_eeds()
1183 		    SAS_ADDR(child->sas_addr)))  in sas_check_eeds()
1188 		     SAS_ADDR(child->sas_addr))))  in sas_check_eeds()
1196 			    SAS_ADDR(child->sas_addr),  in sas_check_eeds()
1205 static int sas_check_parent_topology(struct domain_device *child)  in sas_check_parent_topology()  argument
1207 	struct expander_device *child_ex = &child->ex_dev;  in sas_check_parent_topology()
1212 	if (!child->parent)  in sas_check_parent_topology()
1215 	if (child->parent->dev_type != EDGE_DEV &&  in sas_check_parent_topology()
1216 	    child->parent->dev_type != FANOUT_DEV)  in sas_check_parent_topology()
1219 	parent_ex = &child->parent->ex_dev;  in sas_check_parent_topology()
1229 		if (SAS_ADDR(parent_phy->attached_sas_addr) != SAS_ADDR(child->sas_addr))  in sas_check_parent_topology()
1234 		switch (child->parent->dev_type) {  in sas_check_parent_topology()
1236 			if (child->dev_type == FANOUT_DEV) {  in sas_check_parent_topology()
1239 					sas_print_parent_topology_bug(child, parent_phy, child_phy);  in sas_check_parent_topology()
1244 					res = sas_check_eeds(child, parent_phy, child_phy);  in sas_check_parent_topology()
1246 					sas_print_parent_topology_bug(child, parent_phy, child_phy);  in sas_check_parent_topology()
1255 					sas_print_parent_topology_bug(child, parent_phy, child_phy);  in sas_check_parent_topology()
1263 				sas_print_parent_topology_bug(child, parent_phy, child_phy);  in sas_check_parent_topology()
1411  * child: child expander
1412  * sas_addr: SAS port identifier of device directly attached to child
1415 				struct domain_device *child,  in sas_configure_parent()  argument
1440 		     SAS_ADDR(child->sas_addr))) {  in sas_configure_parent()
1748 	struct domain_device *child, *n;  in sas_unregister_ex_tree()  local
1750 	list_for_each_entry_safe(child, n, &ex->children, siblings) {  in sas_unregister_ex_tree()
1751 		child->gone = 1;  in sas_unregister_ex_tree()
1752 		if (child->dev_type == EDGE_DEV ||  in sas_unregister_ex_tree()
1753 		    child->dev_type == FANOUT_DEV)  in sas_unregister_ex_tree()
1754 			sas_unregister_ex_tree(port, child);  in sas_unregister_ex_tree()
1756 			sas_unregister_dev(port, child);  in sas_unregister_ex_tree()
1766 	struct domain_device *child, *n;  in sas_unregister_devs_sas_addr()  local
1768 		list_for_each_entry_safe(child, n,  in sas_unregister_devs_sas_addr()
1770 			if (SAS_ADDR(child->sas_addr) ==  in sas_unregister_devs_sas_addr()
1772 				child->gone = 1;  in sas_unregister_devs_sas_addr()
1773 				if (child->dev_type == EDGE_DEV ||  in sas_unregister_devs_sas_addr()
1774 				    child->dev_type == FANOUT_DEV)  in sas_unregister_devs_sas_addr()
1775 					sas_unregister_ex_tree(parent->port, child);  in sas_unregister_devs_sas_addr()
1777 					sas_unregister_dev(parent->port, child);  in sas_unregister_devs_sas_addr()
1797 	struct domain_device *child;  in sas_discover_bfs_by_root_level()  local
1800 	list_for_each_entry(child, &ex_root->children, siblings) {  in sas_discover_bfs_by_root_level()
1801 		if (child->dev_type == EDGE_DEV ||  in sas_discover_bfs_by_root_level()
1802 		    child->dev_type == FANOUT_DEV) {  in sas_discover_bfs_by_root_level()
1804 				rphy_to_expander_device(child->rphy);  in sas_discover_bfs_by_root_level()
1807 				res = sas_discover_bfs_by_root_level(child,  in sas_discover_bfs_by_root_level()
1810 				res = sas_ex_discover_devices(child, -1);  in sas_discover_bfs_by_root_level()
1837 	struct domain_device *child;  in sas_discover_new()  local
1864 	list_for_each_entry(child, &dev->ex_dev.children, siblings) {  in sas_discover_new()
1865 		if (SAS_ADDR(child->sas_addr) ==  in sas_discover_new()
1867 			if (child->dev_type == EDGE_DEV ||  in sas_discover_new()
1868 			    child->dev_type == FANOUT_DEV)  in sas_discover_new()
1869 				res = sas_discover_bfs_by_root(child);  in sas_discover_new()