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net: sched: cls_u32: get rid of tp_c

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Both hnode ->tp_c and tp_c argument of u32_set_parms()
the latter is redundant, the former - never read...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Al Viro 2018-10-08 06:22:42 -04:00 committed by David S. Miller
parent db04ff4863
commit 8a8065f683
1 changed files with 4 additions and 7 deletions
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11
net/sched/cls_u32.c
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@ -79,7 +79,6 @@ struct tc_u_hnode {
struct tc_u_hnode __rcu *next;
u32 handle;
u32 prio;
struct tc_u_common *tp_c;
int refcnt;
unsigned int divisor;
struct idr handle_idr;
@ -390,7 +389,6 @@ static int u32_init(struct tcf_proto *tp)
tp_c->refcnt++;
RCU_INIT_POINTER(root_ht->next, tp_c->hlist);
rcu_assign_pointer(tp_c->hlist, root_ht);
root_ht->tp_c = tp_c;
rcu_assign_pointer(tp->root, root_ht);
tp->data = tp_c;
@ -761,7 +759,7 @@ static const struct nla_policy u32_policy[TCA_U32_MAX + 1] = {
};
static int u32_set_parms(struct net *net, struct tcf_proto *tp,
unsigned long base, struct tc_u_common *tp_c,
unsigned long base,
struct tc_u_knode *n, struct nlattr **tb,
struct nlattr *est, bool ovr,
struct netlink_ext_ack *extack)
@ -782,7 +780,7 @@ static int u32_set_parms(struct net *net, struct tcf_proto *tp,
}
if (handle) {
ht_down = u32_lookup_ht(tp_c, handle);
ht_down = u32_lookup_ht(tp->data, handle);
if (!ht_down) {
NL_SET_ERR_MSG_MOD(extack, "Link hash table not found");
@ -956,7 +954,7 @@ static int u32_change(struct net *net, struct sk_buff *in_skb,
if (!new)
return -ENOMEM;
err = u32_set_parms(net, tp, base, tp_c, new, tb,
err = u32_set_parms(net, tp, base, new, tb,
tca[TCA_RATE], ovr, extack);
if (err) {
@ -1012,7 +1010,6 @@ static int u32_change(struct net *net, struct sk_buff *in_skb,
return err;
}
}
ht->tp_c = tp_c;
ht->refcnt = 1;
ht->divisor = divisor;
ht->handle = handle;
@ -1123,7 +1120,7 @@ static int u32_change(struct net *net, struct sk_buff *in_skb,
}
#endif
err = u32_set_parms(net, tp, base, tp_c, n, tb, tca[TCA_RATE], ovr,
err = u32_set_parms(net, tp, base, n, tb, tca[TCA_RATE], ovr,
extack);
if (err == 0) {
struct tc_u_knode __rcu **ins;