From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9DFA2C43334 for ; Thu, 30 Jun 2022 14:03:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236327AbiF3ODf (ORCPT ); Thu, 30 Jun 2022 10:03:35 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45072 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236502AbiF3OCd (ORCPT ); Thu, 30 Jun 2022 10:02:33 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 32AE368A00; Thu, 30 Jun 2022 06:52:56 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 645F7B82AF5; Thu, 30 Jun 2022 13:52:50 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id B40EAC3411E; Thu, 30 Jun 2022 13:52:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1656597169; bh=oyPtyRGppegOs2HUPer1Je0Qz2tbUeLP7TpNwUb2JSU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=fPK4kYYBsn5stPQ1Cpx8jNVPWpFj/hiFQBjuAnfJhp3R7dTrsKfz4TELJN1hdZrle v2YH6Rebz/Q4htsY79yBNABy5B1RO6RIQW56KPUq4SeVyreMJz4tnpd+o8oPnOAY5V 2iLxLJSUUNf8uTA8jmepfMfWTk5OAMtyIhYFsRhA= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jonathan Toppins , Jay Vosburgh , Jakub Kicinski , Sasha Levin Subject: [PATCH 4.19 12/49] bonding: ARP monitor spams NETDEV_NOTIFY_PEERS notifiers Date: Thu, 30 Jun 2022 15:46:25 +0200 Message-Id: <20220630133234.264577719@linuxfoundation.org> X-Mailer: git-send-email 2.37.0 In-Reply-To: <20220630133233.910803744@linuxfoundation.org> References: <20220630133233.910803744@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Jay Vosburgh [ Upstream commit 7a9214f3d88cfdb099f3896e102a306b316d8707 ] The bonding ARP monitor fails to decrement send_peer_notif, the number of peer notifications (gratuitous ARP or ND) to be sent. This results in a continuous series of notifications. Correct this by decrementing the counter for each notification. Reported-by: Jonathan Toppins Signed-off-by: Jay Vosburgh Fixes: b0929915e035 ("bonding: Fix RTNL: assertion failed at net/core/rtnetlink.c for ab arp monitor") Link: https://lore.kernel.org/netdev/b2fd4147-8f50-bebd-963a-1a3e8d1d9715@redhat.com/ Tested-by: Jonathan Toppins Reviewed-by: Jonathan Toppins Link: https://lore.kernel.org/r/9400.1655407960@famine Signed-off-by: Jakub Kicinski Signed-off-by: Sasha Levin --- drivers/net/bonding/bond_main.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 2d70cdd26f89..cab5c1cc9fe9 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -3069,9 +3069,11 @@ static void bond_activebackup_arp_mon(struct bonding *bond) if (!rtnl_trylock()) return; - if (should_notify_peers) + if (should_notify_peers) { + bond->send_peer_notif--; call_netdevice_notifiers(NETDEV_NOTIFY_PEERS, bond->dev); + } if (should_notify_rtnl) { bond_slave_state_notify(bond); bond_slave_link_notify(bond); -- 2.35.1