186 	spinlock_t	upl;		/* protects `ppp' and 'bridge' */  member
648 	spin_lock(&pch->upl);  in ppp_bridge_channels()
649 	if (rcu_dereference_protected(pch->ppp, lockdep_is_held(&pch->upl)) ||  in ppp_bridge_channels()
650 	    rcu_dereference_protected(pch->bridge, lockdep_is_held(&pch->upl))) {  in ppp_bridge_channels()
651 		spin_unlock(&pch->upl);  in ppp_bridge_channels()
656 	spin_unlock(&pch->upl);  in ppp_bridge_channels()
658 	spin_lock(&pchb->upl);  in ppp_bridge_channels()
659 	if (rcu_dereference_protected(pchb->ppp, lockdep_is_held(&pchb->upl)) ||  in ppp_bridge_channels()
660 	    rcu_dereference_protected(pchb->bridge, lockdep_is_held(&pchb->upl))) {  in ppp_bridge_channels()
661 		spin_unlock(&pchb->upl);  in ppp_bridge_channels()
666 	spin_unlock(&pchb->upl);  in ppp_bridge_channels()
671 	spin_lock(&pch->upl);  in ppp_bridge_channels()
673 	pchb = rcu_dereference_protected(pch->bridge, lockdep_is_held(&pch->upl));  in ppp_bridge_channels()
675 	spin_unlock(&pch->upl);  in ppp_bridge_channels()
689 	spin_lock(&pch->upl);  in ppp_unbridge_channels()
690 	pchb = rcu_dereference_protected(pch->bridge, lockdep_is_held(&pch->upl));  in ppp_unbridge_channels()
692 		spin_unlock(&pch->upl);  in ppp_unbridge_channels()
696 	spin_unlock(&pch->upl);  in ppp_unbridge_channels()
703 	spin_lock(&pchb->upl);  in ppp_unbridge_channels()
704 	pchbb = rcu_dereference_protected(pchb->bridge, lockdep_is_held(&pchb->upl));  in ppp_unbridge_channels()
707 	spin_unlock(&pchb->upl);  in ppp_unbridge_channels()
2945 	spin_lock_init(&pch->upl);  in ppp_register_net_channel()
3524 	spin_lock(&pch->upl);  in ppp_connect_channel()
3526 	if (rcu_dereference_protected(pch->ppp, lockdep_is_held(&pch->upl)) ||  in ppp_connect_channel()
3527 	    rcu_dereference_protected(pch->bridge, lockdep_is_held(&pch->upl)))  in ppp_connect_channel()
3557 	spin_unlock(&pch->upl);  in ppp_connect_channel()
3572 	spin_lock(&pch->upl);  in ppp_disconnect_channel()
3573 	ppp = rcu_replace_pointer(pch->ppp, NULL, lockdep_is_held(&pch->upl));  in ppp_disconnect_channel()
3574 	spin_unlock(&pch->upl);  in ppp_disconnect_channel()