From patchwork Mon Aug 10 15:21:56 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 266657 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=-10.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=unavailable 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 D76D8C433E0 for ; Mon, 10 Aug 2020 15:32:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A8A85207FF for ; Mon, 10 Aug 2020 15:32:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1597073569; bh=STaAiDozz5Ey94ASQtqCmUMNQiuV/yBML8B1zscPEZ0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=Hve+na/RrReRvVHQDtVUTYCdbVTLaKdxN3lOvDkfuPjZZjT2zRAEog4E/0+ecGfZ0 xv/8h7cZJ6iJgOrdxSRvn/EDXuwPDqtqDZnHCSzQ8TIWxJZL95wIU3iWQDLKdVDdiz usiHDU6CVg+Da1UOy5aIMgbCoLB2uIBju855hSlM= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728458AbgHJPcn (ORCPT ); Mon, 10 Aug 2020 11:32:43 -0400 Received: from mail.kernel.org ([198.145.29.99]:37182 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729057AbgHJPaW (ORCPT ); Mon, 10 Aug 2020 11:30:22 -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 89C1820791; Mon, 10 Aug 2020 15:30:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1597073422; bh=STaAiDozz5Ey94ASQtqCmUMNQiuV/yBML8B1zscPEZ0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Um8zrUZLsngtYTP7TyyrZxq2uMFVZV3xwFgJOmYZpsfOenMiTczeKKOzGP3ybnvmk Esa+vGKWmzuHa2Y45waM3y7YtL7/bknAkJHYb2srlKJcOkbtwGnvUInxJEXH6m8EGX 7nZoyPSKnSwfVyK+FpaeGf3azu2SColLy6XWoqZo= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Landen Chao , Frank Wunderlich , Andrew Lunn , "David S. Miller" Subject: [PATCH 4.19 34/48] net: ethernet: mtk_eth_soc: fix MTU warnings Date: Mon, 10 Aug 2020 17:21:56 +0200 Message-Id: <20200810151805.896505636@linuxfoundation.org> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200810151804.199494191@linuxfoundation.org> References: <20200810151804.199494191@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Landen Chao [ Upstream commit 555a893303872e044fb86f0a5834ce78d41ad2e2 ] in recent kernel versions there are warnings about incorrect MTU size like these: eth0: mtu greater than device maximum mtk_soc_eth 1b100000.ethernet eth0: error -22 setting MTU to include DSA overhead Fixes: bfcb813203e6 ("net: dsa: configure the MTU for switch ports") Fixes: 72579e14a1d3 ("net: dsa: don't fail to probe if we couldn't set the MTU") Fixes: 7a4c53bee332 ("net: report invalid mtu value via netlink extack") Signed-off-by: Landen Chao Signed-off-by: Frank Wunderlich Reviewed-by: Andrew Lunn Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- drivers/net/ethernet/mediatek/mtk_eth_soc.c | 2 ++ 1 file changed, 2 insertions(+) --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c @@ -2452,6 +2452,8 @@ static int mtk_add_mac(struct mtk_eth *e eth->netdev[id]->irq = eth->irq[0]; eth->netdev[id]->dev.of_node = np; + eth->netdev[id]->max_mtu = MTK_MAX_RX_LENGTH - MTK_RX_ETH_HLEN; + return 0; free_netdev: