177 	rwlock_t	upl;		/* protects `ppp' and 'bridge' */  member
620 	write_lock_bh(&pch->upl);  in ppp_bridge_channels()
622 	    rcu_dereference_protected(pch->bridge, lockdep_is_held(&pch->upl))) {  in ppp_bridge_channels()
623 		write_unlock_bh(&pch->upl);  in ppp_bridge_channels()
628 	write_unlock_bh(&pch->upl);  in ppp_bridge_channels()
630 	write_lock_bh(&pchb->upl);  in ppp_bridge_channels()
632 	    rcu_dereference_protected(pchb->bridge, lockdep_is_held(&pchb->upl))) {  in ppp_bridge_channels()
633 		write_unlock_bh(&pchb->upl);  in ppp_bridge_channels()
638 	write_unlock_bh(&pchb->upl);  in ppp_bridge_channels()
643 	write_lock_bh(&pch->upl);  in ppp_bridge_channels()
645 	pchb = rcu_dereference_protected(pch->bridge, lockdep_is_held(&pch->upl));  in ppp_bridge_channels()
647 	write_unlock_bh(&pch->upl);  in ppp_bridge_channels()
661 	write_lock_bh(&pch->upl);  in ppp_unbridge_channels()
662 	pchb = rcu_dereference_protected(pch->bridge, lockdep_is_held(&pch->upl));  in ppp_unbridge_channels()
664 		write_unlock_bh(&pch->upl);  in ppp_unbridge_channels()
668 	write_unlock_bh(&pch->upl);  in ppp_unbridge_channels()
675 	write_lock_bh(&pchb->upl);  in ppp_unbridge_channels()
676 	pchbb = rcu_dereference_protected(pchb->bridge, lockdep_is_held(&pchb->upl));  in ppp_unbridge_channels()
679 	write_unlock_bh(&pchb->upl);  in ppp_unbridge_channels()
2163 	read_lock_bh(&pch->upl);  in ppp_channel_push()
2171 	read_unlock_bh(&pch->upl);  in ppp_channel_push()
2284 	read_lock_bh(&pch->upl);  in ppp_input()
2308 	read_unlock_bh(&pch->upl);  in ppp_input()
2321 	read_lock_bh(&pch->upl);  in ppp_input_error()
2330 	read_unlock_bh(&pch->upl);  in ppp_input_error()
2891 	rwlock_init(&pch->upl);  in ppp_register_net_channel()
2923 		read_lock_bh(&pch->upl);  in ppp_unit_number()
2926 		read_unlock_bh(&pch->upl);  in ppp_unit_number()
2940 		read_lock_bh(&pch->upl);  in ppp_dev_name()
2943 		read_unlock_bh(&pch->upl);  in ppp_dev_name()
3455 	write_lock_bh(&pch->upl);  in ppp_connect_channel()
3458 	    rcu_dereference_protected(pch->bridge, lockdep_is_held(&pch->upl)))  in ppp_connect_channel()
3484 	write_unlock_bh(&pch->upl);  in ppp_connect_channel()
3499 	write_lock_bh(&pch->upl);  in ppp_disconnect_channel()
3502 	write_unlock_bh(&pch->upl);  in ppp_disconnect_channel()