From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Dumazet Subject: [PATCH net-next 3/6] ipv6: ipv6_chk_custom_prefix() rcu conversion Date: Sat, 7 Oct 2017 19:30:25 -0700 Message-ID: <20171008023028.32071-4-edumazet@google.com> References: <20171008023028.32071-1-edumazet@google.com> Cc: netdev , Eric Dumazet , Eric Dumazet , Hideaki YOSHIFUJI To: "David S . Miller" Return-path: Received: from mail-pg0-f54.google.com ([74.125.83.54]:55468 "EHLO mail-pg0-f54.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750981AbdJHCan (ORCPT ); Sat, 7 Oct 2017 22:30:43 -0400 Received: by mail-pg0-f54.google.com with SMTP id b11so11620580pgn.12 for ; Sat, 07 Oct 2017 19:30:43 -0700 (PDT) In-Reply-To: <20171008023028.32071-1-edumazet@google.com> Sender: netdev-owner@vger.kernel.org List-ID: Signed-off-by: Eric Dumazet --- net/ipv6/addrconf.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index 2e029c8be1f2e2746e804a47bb5a3eb632adaa5d..33ee84c2512b50e316a0a6ed38a604a382ce5319 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -1859,20 +1859,18 @@ static bool ipv6_chk_same_addr(struct net *net, const struct in6_addr *addr, bool ipv6_chk_custom_prefix(const struct in6_addr *addr, const unsigned int prefix_len, struct net_device *dev) { - struct inet6_dev *idev; - struct inet6_ifaddr *ifa; + const struct inet6_ifaddr *ifa; + const struct inet6_dev *idev; bool ret = false; rcu_read_lock(); idev = __in6_dev_get(dev); if (idev) { - read_lock_bh(&idev->lock); - list_for_each_entry(ifa, &idev->addr_list, if_list) { + list_for_each_entry_rcu(ifa, &idev->addr_list, if_list) { ret = ipv6_prefix_equal(addr, &ifa->addr, prefix_len); if (ret) break; } - read_unlock_bh(&idev->lock); } rcu_read_unlock(); -- 2.14.2.920.gcf0c67979c-goog