From: Maciej Żenczykowski <maze@google.com>
Date: Sat, 8 Feb 2014 00:23:48 +0000 (-0800)
Subject: net: fix 'ip rule' iif/oif device rename
X-Git-Tag: v4.9.8~6927^2~11
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=946c032e5a53992ea45e062ecb08670ba39b99e3;p=platform%2Fkernel%2Flinux-rpi3.git

net: fix 'ip rule' iif/oif device rename

ip rules with iif/oif references do not update:
(detach/attach) across interface renames.

Signed-off-by: Maciej Żenczykowski <maze@google.com>
CC: Willem de Bruijn <willemb@google.com>
CC: Eric Dumazet <edumazet@google.com>
CC: Chris Davis <chrismd@google.com>
CC: Carlo Contavalli <ccontavalli@google.com>

Google-Bug-Id: 12936021
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/core/fib_rules.c b/net/core/fib_rules.c
index f409e0b..185c341 100644
--- a/net/core/fib_rules.c
+++ b/net/core/fib_rules.c
@@ -745,6 +745,13 @@ static int fib_rules_event(struct notifier_block *this, unsigned long event,
 			attach_rules(&ops->rules_list, dev);
 		break;
 
+	case NETDEV_CHANGENAME:
+		list_for_each_entry(ops, &net->rules_ops, list) {
+			detach_rules(&ops->rules_list, dev);
+			attach_rules(&ops->rules_list, dev);
+		}
+		break;
+
 	case NETDEV_UNREGISTER:
 		list_for_each_entry(ops, &net->rules_ops, list)
 			detach_rules(&ops->rules_list, dev);