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From: Jules Irenge <jbi.octave@gmail.com>
Date: Wed, 11 Mar 2020 01:09:04 +0000
Subject: netfilter: ctnetlink: Add missing annotation for
 ctnetlink_parse_nat_setup()
Patch-mainline: v5.7-rc1
Git-commit: 19f8f717f620576ada10b0ba8f4d55ef1208571e
References: bsc#1176447

Sparse reports a warning at ctnetlink_parse_nat_setup()

warning: context imbalance in ctnetlink_parse_nat_setup()
	- unexpected unlock

The root cause is the missing annotation at ctnetlink_parse_nat_setup()
Add the missing __must_hold(RCU) annotation

Signed-off-by: Jules Irenge <jbi.octave@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 net/netfilter/nf_conntrack_netlink.c |    1 +
 1 file changed, 1 insertion(+)

--- a/net/netfilter/nf_conntrack_netlink.c
+++ b/net/netfilter/nf_conntrack_netlink.c
@@ -1533,6 +1533,7 @@ static int
 ctnetlink_parse_nat_setup(struct nf_conn *ct,
 			  enum nf_nat_manip_type manip,
 			  const struct nlattr *attr)
+	__must_hold(RCU)
 {
 	struct nf_nat_hook *nat_hook;
 	int err;