From 4ebc1e3cfcd8778e2150bdb799b19e85348b8efa Mon Sep 17 00:00:00 2001 From: Jiri Pirko Date: Fri, 4 Aug 2017 14:28:57 +0200 Subject: [PATCH] net: sched: remove unneeded tcf_em_tree_change Since tcf_em_tree_validate could be always called on a newly created filter, there is no need for this change function. Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller --- include/net/pkt_cls.h | 21 --------------------- net/sched/cls_basic.c | 4 +--- net/sched/cls_cgroup.c | 4 +--- net/sched/cls_flow.c | 12 +++++------- 4 files changed, 7 insertions(+), 34 deletions(-) diff --git a/include/net/pkt_cls.h b/include/net/pkt_cls.h index 537d0a0..f4462ec 100644 --- a/include/net/pkt_cls.h +++ b/include/net/pkt_cls.h @@ -333,26 +333,6 @@ int __tcf_em_tree_match(struct sk_buff *, struct tcf_ematch_tree *, struct tcf_pkt_info *); /** - * tcf_em_tree_change - replace ematch tree of a running classifier - * - * @tp: classifier kind handle - * @dst: destination ematch tree variable - * @src: source ematch tree (temporary tree from tcf_em_tree_validate) - * - * This functions replaces the ematch tree in @dst with the ematch - * tree in @src. The classifier in charge of the ematch tree may be - * running. - */ -static inline void tcf_em_tree_change(struct tcf_proto *tp, - struct tcf_ematch_tree *dst, - struct tcf_ematch_tree *src) -{ - tcf_tree_lock(tp); - memcpy(dst, src, sizeof(*dst)); - tcf_tree_unlock(tp); -} - -/** * tcf_em_tree_match - evaulate an ematch tree * * @skb: socket buffer of the packet in question @@ -386,7 +366,6 @@ struct tcf_ematch_tree { #define tcf_em_tree_validate(tp, tb, t) ((void)(t), 0) #define tcf_em_tree_destroy(t) do { (void)(t); } while(0) #define tcf_em_tree_dump(skb, t, tlv) (0) -#define tcf_em_tree_change(tp, dst, src) do { } while(0) #define tcf_em_tree_match(skb, t, info) ((void)(info), 1) #endif /* CONFIG_NET_EMATCH */ diff --git a/net/sched/cls_basic.c b/net/sched/cls_basic.c index c4fd63a0..979cd26 100644 --- a/net/sched/cls_basic.c +++ b/net/sched/cls_basic.c @@ -130,7 +130,6 @@ static int basic_set_parms(struct net *net, struct tcf_proto *tp, { int err; struct tcf_exts e; - struct tcf_ematch_tree t; err = tcf_exts_init(&e, TCA_BASIC_ACT, TCA_BASIC_POLICE); if (err < 0) @@ -139,7 +138,7 @@ static int basic_set_parms(struct net *net, struct tcf_proto *tp, if (err < 0) goto errout; - err = tcf_em_tree_validate(tp, tb[TCA_BASIC_EMATCHES], &t); + err = tcf_em_tree_validate(tp, tb[TCA_BASIC_EMATCHES], &f->ematches); if (err < 0) goto errout; @@ -149,7 +148,6 @@ static int basic_set_parms(struct net *net, struct tcf_proto *tp, } tcf_exts_change(tp, &f->exts, &e); - tcf_em_tree_change(tp, &f->ematches, &t); f->tp = tp; return 0; diff --git a/net/sched/cls_cgroup.c b/net/sched/cls_cgroup.c index 12ce547..ce7d38b 100644 --- a/net/sched/cls_cgroup.c +++ b/net/sched/cls_cgroup.c @@ -76,7 +76,6 @@ static int cls_cgroup_change(struct net *net, struct sk_buff *in_skb, struct nlattr *tb[TCA_CGROUP_MAX + 1]; struct cls_cgroup_head *head = rtnl_dereference(tp->root); struct cls_cgroup_head *new; - struct tcf_ematch_tree t; struct tcf_exts e; int err; @@ -112,14 +111,13 @@ static int cls_cgroup_change(struct net *net, struct sk_buff *in_skb, goto errout; } - err = tcf_em_tree_validate(tp, tb[TCA_CGROUP_EMATCHES], &t); + err = tcf_em_tree_validate(tp, tb[TCA_CGROUP_EMATCHES], &new->ematches); if (err < 0) { tcf_exts_destroy(&e); goto errout; } tcf_exts_change(tp, &new->exts, &e); - tcf_em_tree_change(tp, &new->ematches, &t); rcu_assign_pointer(tp->root, new); if (head) diff --git a/net/sched/cls_flow.c b/net/sched/cls_flow.c index 3065752..71fd1af 100644 --- a/net/sched/cls_flow.c +++ b/net/sched/cls_flow.c @@ -389,7 +389,6 @@ static int flow_change(struct net *net, struct sk_buff *in_skb, struct nlattr *opt = tca[TCA_OPTIONS]; struct nlattr *tb[TCA_FLOW_MAX + 1]; struct tcf_exts e; - struct tcf_ematch_tree t; unsigned int nkeys = 0; unsigned int perturb_period = 0; u32 baseclass = 0; @@ -432,13 +431,13 @@ static int flow_change(struct net *net, struct sk_buff *in_skb, if (err < 0) goto err1; - err = tcf_em_tree_validate(tp, tb[TCA_FLOW_EMATCHES], &t); - if (err < 0) - goto err1; - err = -ENOBUFS; fnew = kzalloc(sizeof(*fnew), GFP_KERNEL); if (!fnew) + goto err1; + + err = tcf_em_tree_validate(tp, tb[TCA_FLOW_EMATCHES], &fnew->ematches); + if (err < 0) goto err2; err = tcf_exts_init(&fnew->exts, TCA_FLOW_ACT, TCA_FLOW_POLICE); @@ -512,7 +511,6 @@ static int flow_change(struct net *net, struct sk_buff *in_skb, (unsigned long)fnew); tcf_exts_change(tp, &fnew->exts, &e); - tcf_em_tree_change(tp, &fnew->ematches, &t); netif_keep_dst(qdisc_dev(tp->q)); @@ -554,8 +552,8 @@ static int flow_change(struct net *net, struct sk_buff *in_skb, err3: tcf_exts_destroy(&fnew->exts); + tcf_em_tree_destroy(&fnew->ematches); err2: - tcf_em_tree_destroy(&t); kfree(fnew); err1: tcf_exts_destroy(&e); -- 2.7.4