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authorYajun Deng <yajun.deng@linux.dev>2021-07-15 15:24:24 +0300
committerDavid S. Miller <davem@davemloft.net>2021-07-16 20:46:35 +0300
commitf79a3bcb1a50d919147b9f22855d355ed8e03031 (patch)
tree0f5717c6c3c9c22f5b833a1465ae87fefe533b8e /net/sched
parentcfdf0d9ae75b40013364ddb61a25926ccc9f83ea (diff)
downloadlinux-f79a3bcb1a50d919147b9f22855d355ed8e03031.tar.xz
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>
Diffstat (limited to 'net/sched')
-rw-r--r--net/sched/act_api.c12
-rw-r--r--net/sched/cls_api.c15
-rw-r--r--net/sched/sch_api.c10
3 files changed, 8 insertions, 29 deletions
diff --git a/net/sched/act_api.c b/net/sched/act_api.c
index d17a66aab8ee..998a2374f7ae 100644
--- a/net/sched/act_api.c
+++ b/net/sched/act_api.c
@@ -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,
- n->nlmsg_flags & NLM_F_ECHO);
- if (err > 0)
- err = 0;
- return err;
+ return rtnetlink_send(skb, net, portid, RTNLGRP_TC,
+ n->nlmsg_flags & NLM_F_ECHO);
}
static int tcf_action_add(struct net *net, struct nlattr *nla,
diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c
index d73b5c5514a9..c8cb59a11098 100644
--- a/net/sched/cls_api.c
+++ b/net/sched/cls_api.c
@@ -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);
}
diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index f87d07736a14..5e90e9b160e3 100644
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -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,
- n->nlmsg_flags & NLM_F_ECHO);
- if (err > 0)
- err = 0;
- return err;
+ return rtnetlink_send(skb, net, portid, RTNLGRP_TC,
+ n->nlmsg_flags & NLM_F_ECHO);
}
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;
}