netfilter: ctnetlink: Add missing annotation for ctnetlink_parse_nat_setup()

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>

diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c
index 6a1c8f1f61718cc90187f8c5c8c3f89293896f04..eb190206cd12e56ca58b10b20015e5fff4348c7b 100644 (file)
--- 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;