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=-19.3 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,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 14801C433DB for ; Mon, 8 Feb 2021 15:37:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C140E64DFF for ; Mon, 8 Feb 2021 15:37:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232069AbhBHPhI (ORCPT ); Mon, 8 Feb 2021 10:37:08 -0500 Received: from mail.kernel.org ([198.145.29.99]:37830 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233952AbhBHPb7 (ORCPT ); Mon, 8 Feb 2021 10:31:59 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 4CDF264F35; Mon, 8 Feb 2021 15:17:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1612797464; bh=CuuS7DDKRy19ZcGuixhP00qVe/7P/5RSrEZvzhe/42E=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=U/kN1zc1lz37Rpjunh5lzeSjGjD0AFcYx0jlqY/dkgdrdbokrN/Jsq5M7r4dLQsvc ngIKvjbUUyRpPpHR7URFThom2EQV1Lxjs7OWWHMlq1Y8gmdOJ/sId3y+PXxOtvsCl/ dJUeS7ITXfcqUNzPAqmWA+55KbbJeDXDjDKuAZSo= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, DENG Qingfang , Vladimir Oltean , Jakub Kicinski Subject: [PATCH 5.10 119/120] net: dsa: mv88e6xxx: override existent unicast portvec in port_fdb_add Date: Mon, 8 Feb 2021 16:01:46 +0100 Message-Id: <20210208145823.122073711@linuxfoundation.org> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20210208145818.395353822@linuxfoundation.org> References: <20210208145818.395353822@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: stable@vger.kernel.org From: DENG Qingfang commit f72f2fb8fb6be095b98af5d740ac50cffd0b0cae upstream. Having multiple destination ports for a unicast address does not make sense. Make port_db_load_purge override existent unicast portvec instead of adding a new port bit. Fixes: 884729399260 ("net: dsa: mv88e6xxx: handle multiple ports in ATU") Signed-off-by: DENG Qingfang Reviewed-by: Vladimir Oltean Link: https://lore.kernel.org/r/20210130134334.10243-1-dqfext@gmail.com Signed-off-by: Jakub Kicinski Signed-off-by: Greg Kroah-Hartman --- drivers/net/dsa/mv88e6xxx/chip.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) --- a/drivers/net/dsa/mv88e6xxx/chip.c +++ b/drivers/net/dsa/mv88e6xxx/chip.c @@ -1669,7 +1669,11 @@ static int mv88e6xxx_port_db_load_purge( if (!entry.portvec) entry.state = 0; } else { - entry.portvec |= BIT(port); + if (state == MV88E6XXX_G1_ATU_DATA_STATE_UC_STATIC) + entry.portvec = BIT(port); + else + entry.portvec |= BIT(port); + entry.state = state; }