netdev - [patch net-next rfc 5/7] net: rtnetlink: unify the code in __rtnl

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Date:   Fri, 19 Jul 2019 13:00:27 +0200
From:   Jiri Pirko <jiri@...nulli.us>
To:     netdev@...r.kernel.org
Cc:     davem@...emloft.net, jakub.kicinski@...ronome.com,
        sthemmin@...rosoft.com, dsahern@...il.com, dcbw@...hat.com,
        mkubecek@...e.cz, andrew@...n.ch, parav@...lanox.com,
        saeedm@...lanox.com, mlxsw@...lanox.com
Subject: [patch net-next rfc 5/7] net: rtnetlink: unify the code in __rtnl_newlink get dev with the rest

From: Jiri Pirko <jiri@...lanox.com>

__rtnl_newlink() code flow is a bit different around tb[IFLA_IFNAME]
processing comparing to the other places. Change that to be unified with
the rest.

Signed-off-by: Jiri Pirko <jiri@...lanox.com>
---
 net/core/rtnetlink.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index f11a2367037d..8994dc858ae0 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -3067,12 +3067,10 @@ static int __rtnl_newlink(struct sk_buff *skb, struct nlmsghdr *nlh,
 	ifm = nlmsg_data(nlh);
 	if (ifm->ifi_index > 0)
 		dev = __dev_get_by_index(net, ifm->ifi_index);
-	else {
-		if (ifname[0])
-			dev = __dev_get_by_name(net, ifname);
-		else
-			dev = NULL;
-	}
+	else if (tb[IFLA_IFNAME])
+		dev = __dev_get_by_name(net, ifname);
+	else
+		dev = NULL;
 
 	if (dev) {
 		master_dev = netdev_master_upper_dev_get(dev);
-- 
2.21.0