660 static struct hlist_head *qdisc_class_hash_alloc(unsigned int n)  in qdisc_class_hash_alloc()  argument
665 	h = kvmalloc_array(n, sizeof(struct hlist_head), GFP_KERNEL);  in qdisc_class_hash_alloc()
668 		for (i = 0; i < n; i++)  in qdisc_class_hash_alloc()
770 void qdisc_tree_reduce_backlog(struct Qdisc *sch, int n, int len)  in qdisc_tree_reduce_backlog()  argument
779 	if (n == 0 && len == 0)  in qdisc_tree_reduce_backlog()
781 	drops = max_t(int, n, 0);  in qdisc_tree_reduce_backlog()
798 		notify = !sch->q.qlen && !WARN_ON_ONCE(!n &&  in qdisc_tree_reduce_backlog()
811 		sch->q.qlen -= n;  in qdisc_tree_reduce_backlog()
974 			struct nlmsghdr *n, u32 clid,  in qdisc_notify()  argument
985 		if (tc_fill_qdisc(skb, old, clid, portid, n->nlmsg_seq,  in qdisc_notify()
990 		if (tc_fill_qdisc(skb, new, clid, portid, n->nlmsg_seq,  in qdisc_notify()
997 				      n->nlmsg_flags & NLM_F_ECHO);  in qdisc_notify()
1005 			       struct nlmsghdr *n, u32 clid,  in notify_and_destroy()  argument
1009 		qdisc_notify(net, skb, n, clid, old, new);  in notify_and_destroy()
1038 		       struct sk_buff *skb, struct nlmsghdr *n, u32 classid,  in qdisc_graft()  argument
1089 			notify_and_destroy(net, skb, n, classid, old, new);  in qdisc_graft()
1094 			notify_and_destroy(net, skb, n, classid, old, new);  in qdisc_graft()
1125 		notify_and_destroy(net, skb, n, classid, old, new);  in qdisc_graft()
1435 static int tc_get_qdisc(struct sk_buff *skb, struct nlmsghdr *n,  in tc_get_qdisc()  argument
1439 	struct tcmsg *tcm = nlmsg_data(n);  in tc_get_qdisc()
1447 	if ((n->nlmsg_type != RTM_GETQDISC) &&  in tc_get_qdisc()
1451 	err = nlmsg_parse_deprecated(n, sizeof(*tcm), tca, TCA_MAX,  in tc_get_qdisc()
1498 	if (n->nlmsg_type == RTM_DELQDISC) {  in tc_get_qdisc()
1507 		err = qdisc_graft(dev, p, skb, n, clid, NULL, q, extack);  in tc_get_qdisc()
1511 		qdisc_notify(net, skb, n, clid, NULL, q);  in tc_get_qdisc()
1516 static bool req_create_or_replace(struct nlmsghdr *n)  in req_create_or_replace()  argument
1518 	return (n->nlmsg_flags & NLM_F_CREATE &&  in req_create_or_replace()
1519 		n->nlmsg_flags & NLM_F_REPLACE);  in req_create_or_replace()
1522 static bool req_create_exclusive(struct nlmsghdr *n)  in req_create_exclusive()  argument
1524 	return (n->nlmsg_flags & NLM_F_CREATE &&  in req_create_exclusive()
1525 		n->nlmsg_flags & NLM_F_EXCL);  in req_create_exclusive()
1528 static bool req_change(struct nlmsghdr *n)  in req_change()  argument
1530 	return (!(n->nlmsg_flags & NLM_F_CREATE) &&  in req_change()
1531 		!(n->nlmsg_flags & NLM_F_REPLACE) &&  in req_change()
1532 		!(n->nlmsg_flags & NLM_F_EXCL));  in req_change()
1538 static int tc_modify_qdisc(struct sk_buff *skb, struct nlmsghdr *n,  in tc_modify_qdisc()  argument
1554 	err = nlmsg_parse_deprecated(n, sizeof(*tcm), tca, TCA_MAX,  in tc_modify_qdisc()
1559 	tcm = nlmsg_data(n);  in tc_modify_qdisc()
1590 				if (q && !(n->nlmsg_flags & NLM_F_REPLACE)) {  in tc_modify_qdisc()
1601 				if (n->nlmsg_flags & NLM_F_EXCL) {  in tc_modify_qdisc()
1657 					if (req_create_or_replace(n) ||  in tc_modify_qdisc()
1658 					    req_create_exclusive(n))  in tc_modify_qdisc()
1660 					else if (req_change(n))  in tc_modify_qdisc()
1678 	if (n->nlmsg_flags & NLM_F_EXCL) {  in tc_modify_qdisc()
1688 		qdisc_notify(net, skb, n, clid, NULL, q);  in tc_modify_qdisc()
1692 	if (!(n->nlmsg_flags & NLM_F_CREATE)) {  in tc_modify_qdisc()
1727 	err = qdisc_graft(dev, p, skb, n, clid, q, NULL, extack);  in tc_modify_qdisc()
1897 			 struct nlmsghdr *n, struct Qdisc *q,  in tclass_notify()  argument
1908 	if (tc_fill_tclass(skb, q, cl, portid, n->nlmsg_seq, 0, event) < 0) {  in tclass_notify()
1914 			     n->nlmsg_flags & NLM_F_ECHO);  in tclass_notify()
1922 			     struct sk_buff *oskb, struct nlmsghdr *n,  in tclass_del_notify()  argument
1936 	if (tc_fill_tclass(skb, q, cl, portid, n->nlmsg_seq, 0,  in tclass_del_notify()
1949 			     n->nlmsg_flags & NLM_F_ECHO);  in tclass_del_notify()
1964 static int tcf_node_bind(struct tcf_proto *tp, void *n, struct tcf_walker *arg)  in tcf_node_bind()  argument
1972 		tp->ops->bind_class(n, a->classid, a->cl, q, a->base);  in tcf_node_bind()
2040 static int tc_ctl_tclass(struct sk_buff *skb, struct nlmsghdr *n,  in tc_ctl_tclass()  argument
2044 	struct tcmsg *tcm = nlmsg_data(n);  in tc_ctl_tclass()
2056 	if ((n->nlmsg_type != RTM_GETTCLASS) &&  in tc_ctl_tclass()
2060 	err = nlmsg_parse_deprecated(n, sizeof(*tcm), tca, TCA_MAX,  in tc_ctl_tclass()
2134 		if (n->nlmsg_type != RTM_NEWTCLASS ||  in tc_ctl_tclass()
2135 		    !(n->nlmsg_flags & NLM_F_CREATE))  in tc_ctl_tclass()
2138 		switch (n->nlmsg_type) {  in tc_ctl_tclass()
2141 			if (n->nlmsg_flags & NLM_F_EXCL)  in tc_ctl_tclass()
2145 			err = tclass_del_notify(net, cops, skb, n, q, cl);  in tc_ctl_tclass()
2150 			err = tclass_notify(net, skb, n, q, cl, RTM_NEWTCLASS);  in tc_ctl_tclass()
2168 		tclass_notify(net, skb, n, q, new_cl, RTM_NEWTCLASS);  in tc_ctl_tclass()