From mboxrd@z Thu Jan 1 00:00:00 1970 From: Hangbin Liu Subject: [PATCH net] ipv6/mcast: update mc_qrv when join new group Date: Fri, 26 Oct 2018 10:30:54 +0800 Message-ID: <1540521054-17825-1-git-send-email-liuhangbin@gmail.com> Cc: David Miller , Hangbin Liu To: netdev@vger.kernel.org Return-path: Received: from mail-pf1-f195.google.com ([209.85.210.195]:35980 "EHLO mail-pf1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725842AbeJZLGf (ORCPT ); Fri, 26 Oct 2018 07:06:35 -0400 Received: by mail-pf1-f195.google.com with SMTP id l81-v6so5156345pfg.3 for ; Thu, 25 Oct 2018 19:31:28 -0700 (PDT) Sender: netdev-owner@vger.kernel.org List-ID: Currently we only set mc_qrv to sysctl_mld_qrv when interface up. If we change sysctl_mld_qrv after interface up, it will has no effect. Fix it by assigning latest sysctl_mld_qrv to idev mc_qrv when join new group. Reported-by: Ying Xu Signed-off-by: Hangbin Liu --- net/ipv6/mcast.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c index dbab62e..bed4890 100644 --- a/net/ipv6/mcast.c +++ b/net/ipv6/mcast.c @@ -680,6 +680,7 @@ static void igmp6_group_added(struct ifmcaddr6 *mc) if (!(dev->flags & IFF_UP) || (mc->mca_flags & MAF_NOREPORT)) return; + mc->idev->mc_qrv = sysctl_mld_qrv; if (mld_in_v1_mode(mc->idev)) { igmp6_join_group(mc); return; -- 2.5.5