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net/sched: Remove unnecessary if statement 

It has been deal with the 'if (err' statement in rtnetlink_send()
and rtnl_unicast(). so remove unnecessary if statement.

v2: use the raw name rtnetlink_send().

Signed-off-by: Yajun Deng <yajun.deng@linux.dev>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Yajun Deng 2021-07-15 20:24:24 +08:00 committed by David S. Miller
parent cfdf0d9ae7
commit f79a3bcb1a
3 changed files with 8 additions and 29 deletions
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10
net/sched/act_api.c
View File

@ -1351,8 +1351,6 @@ static int tca_action_flush(struct net *net, struct nlattr *nla,
module_put(ops->owner);
err = rtnetlink_send(skb, net, portid, RTNLGRP_TC,
n->nlmsg_flags & NLM_F_ECHO);
if (err > 0)
return 0;
if (err < 0)
NL_SET_ERR_MSG(extack, "Failed to send TC action flush notification");
@ -1423,8 +1421,6 @@ tcf_del_notify(struct net *net, struct nlmsghdr *n, struct tc_action *actions[],
ret = rtnetlink_send(skb, net, portid, RTNLGRP_TC,
n->nlmsg_flags & NLM_F_ECHO);
if (ret > 0)
return 0;
return ret;
}
@ -1481,7 +1477,6 @@ tcf_add_notify(struct net *net, struct nlmsghdr *n, struct tc_action *actions[],
u32 portid, size_t attr_size, struct netlink_ext_ack *extack)
{
struct sk_buff *skb;
int err = 0;
skb = alloc_skb(attr_size <= NLMSG_GOODSIZE ? NLMSG_GOODSIZE : attr_size,
GFP_KERNEL);
@ -1495,11 +1490,8 @@ tcf_add_notify(struct net *net, struct nlmsghdr *n, struct tc_action *actions[],
return -EINVAL;
}
err = rtnetlink_send(skb, net, portid, RTNLGRP_TC,
return rtnetlink_send(skb, net, portid, RTNLGRP_TC,
n->nlmsg_flags & NLM_F_ECHO);
if (err > 0)
err = 0;
return err;
}
static int tcf_action_add(struct net *net, struct nlattr *nla,

15
net/sched/cls_api.c
View File

@ -1870,13 +1870,10 @@ static int tfilter_notify(struct net *net, struct sk_buff *oskb,
}
if (unicast)
err = netlink_unicast(net->rtnl, skb, portid, MSG_DONTWAIT);
err = rtnl_unicast(skb, net, portid);
else
err = rtnetlink_send(skb, net, portid, RTNLGRP_TC,
n->nlmsg_flags & NLM_F_ECHO);
if (err > 0)
err = 0;
return err;
}
@ -1909,15 +1906,13 @@ static int tfilter_del_notify(struct net *net, struct sk_buff *oskb,
}
if (unicast)
err = netlink_unicast(net->rtnl, skb, portid, MSG_DONTWAIT);
err = rtnl_unicast(skb, net, portid);
else
err = rtnetlink_send(skb, net, portid, RTNLGRP_TC,
n->nlmsg_flags & NLM_F_ECHO);
if (err < 0)
NL_SET_ERR_MSG(extack, "Failed to send filter delete notification");
if (err > 0)
err = 0;
return err;
}
@ -2711,13 +2706,11 @@ static int tc_chain_notify(struct tcf_chain *chain, struct sk_buff *oskb,
}
if (unicast)
err = netlink_unicast(net->rtnl, skb, portid, MSG_DONTWAIT);
err = rtnl_unicast(skb, net, portid);
else
err = rtnetlink_send(skb, net, portid, RTNLGRP_TC,
flags & NLM_F_ECHO);
if (err > 0)
err = 0;
return err;
}
@ -2741,7 +2734,7 @@ static int tc_chain_notify_delete(const struct tcf_proto_ops *tmplt_ops,
}
if (unicast)
return netlink_unicast(net->rtnl, skb, portid, MSG_DONTWAIT);
return rtnl_unicast(skb, net, portid);
return rtnetlink_send(skb, net, portid, RTNLGRP_TC, flags & NLM_F_ECHO);
}

8
net/sched/sch_api.c
View File

@ -1845,7 +1845,6 @@ static int tclass_notify(struct net *net, struct sk_buff *oskb,
{
struct sk_buff *skb;
u32 portid = oskb ? NETLINK_CB(oskb).portid : 0;
int err = 0;
skb = alloc_skb(NLMSG_GOODSIZE, GFP_KERNEL);
if (!skb)
@ -1856,11 +1855,8 @@ static int tclass_notify(struct net *net, struct sk_buff *oskb,
return -EINVAL;
}
err = rtnetlink_send(skb, net, portid, RTNLGRP_TC,
return rtnetlink_send(skb, net, portid, RTNLGRP_TC,
n->nlmsg_flags & NLM_F_ECHO);
if (err > 0)
err = 0;
return err;
}
static int tclass_del_notify(struct net *net,
@ -1894,8 +1890,6 @@ static int tclass_del_notify(struct net *net,
err = rtnetlink_send(skb, net, portid, RTNLGRP_TC,
n->nlmsg_flags & NLM_F_ECHO);
if (err > 0)
err = 0;
return err;
}