From: Eric Dumazet <edumazet@google.com>
Date: Mon, 23 Oct 2017 23:17:51 +0000 (-0700)
Subject: ipv6: addrconf: do not block BH in ipv6_chk_home_addr()
X-Git-Tag: v4.19~2168^2~346^2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=4e5f47ab97ce68d9f766dfedc5762940a90e4c11;p=platform%2Fkernel%2Flinux-rpi.git

ipv6: addrconf: do not block BH in ipv6_chk_home_addr()

rcu_read_lock() is enough here, no need to block BH.

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

diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 9232e953..5a8a102 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -4248,8 +4248,8 @@ int ipv6_chk_home_addr(struct net *net, const struct in6_addr *addr)
 	struct inet6_ifaddr *ifp = NULL;
 	int ret = 0;
 
-	rcu_read_lock_bh();
-	hlist_for_each_entry_rcu_bh(ifp, &inet6_addr_lst[hash], addr_lst) {
+	rcu_read_lock();
+	hlist_for_each_entry_rcu(ifp, &inet6_addr_lst[hash], addr_lst) {
 		if (!net_eq(dev_net(ifp->idev->dev), net))
 			continue;
 		if (ipv6_addr_equal(&ifp->addr, addr) &&
@@ -4258,7 +4258,7 @@ int ipv6_chk_home_addr(struct net *net, const struct in6_addr *addr)
 			break;
 		}
 	}
-	rcu_read_unlock_bh();
+	rcu_read_unlock();
 	return ret;
 }
 #endif