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 X-Spam-Level: X-Spam-Status: No, score=-6.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id BD24FC43331 for ; Wed, 1 Apr 2020 16:31:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6268520658 for ; Wed, 1 Apr 2020 16:31:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1585758660; bh=IVevopt4tpFjF//N5RzWcfrUTFmM9C5XwhNWWFkXLCE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=GNpmJa3Izh2OCWAHRUg1QupBdDaGfqJD3T7vpILaUatcOlIo//XTPrGp2rLwmCPn3 pKM8ioAVYfE+vuBXAgCYS98jzmi4j6jIGO1xd2vby3sLkrSbtxfsoCOgdhRo2Hwvbu 4mmUzUhwrQ8O7KdqivY3DJz0iCBFEVWxk296upBI= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388064AbgDAQa7 (ORCPT ); Wed, 1 Apr 2020 12:30:59 -0400 Received: from mail.kernel.org ([198.145.29.99]:56942 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387793AbgDAQa4 (ORCPT ); Wed, 1 Apr 2020 12:30:56 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 0E90A212CC; Wed, 1 Apr 2020 16:30:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1585758655; bh=IVevopt4tpFjF//N5RzWcfrUTFmM9C5XwhNWWFkXLCE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=RhjuoKuzWlcecfzvi1jgGzvbfUdugdsqm4879Q/FHzwbP/XgkxZp3qD9S6nqg4Bfj bk2/DCxK/hgNIPwydwmVOruq22MRivI1pPjqGQsFb+Ho3lcpRzWItPGC1CuixHTBOl 9hTLm1p9D9g6JgV6gitQGjzM8nqcAE+eGUFEPaQw= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Maxime Bizon , Florian Fainelli , Vivien Didelot , "David S. Miller" Subject: [PATCH 4.4 35/91] net: dsa: Fix duplicate frames flooded by learning Date: Wed, 1 Apr 2020 18:17:31 +0200 Message-Id: <20200401161526.553430929@linuxfoundation.org> X-Mailer: git-send-email 2.26.0 In-Reply-To: <20200401161512.917494101@linuxfoundation.org> References: <20200401161512.917494101@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Florian Fainelli [ Upstream commit 0e62f543bed03a64495bd2651d4fe1aa4bcb7fe5 ] When both the switch and the bridge are learning about new addresses, switch ports attached to the bridge would see duplicate ARP frames because both entities would attempt to send them. Fixes: 5037d532b83d ("net: dsa: add Broadcom tag RX/TX handler") Reported-by: Maxime Bizon Signed-off-by: Florian Fainelli Reviewed-by: Vivien Didelot Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- net/dsa/tag_brcm.c | 2 ++ 1 file changed, 2 insertions(+) --- a/net/dsa/tag_brcm.c +++ b/net/dsa/tag_brcm.c @@ -84,6 +84,8 @@ static struct sk_buff *brcm_tag_xmit(str brcm_tag[2] = BRCM_IG_DSTMAP2_MASK; brcm_tag[3] = (1 << p->port) & BRCM_IG_DSTMAP1_MASK; + skb->offload_fwd_mark = 1; + return skb; out_free: