From patchwork Mon Aug 10 15:21:40 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 266642 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,URIBL_BLOCKED,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 C1548C433E0 for ; Mon, 10 Aug 2020 15:35:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A14252078E for ; Mon, 10 Aug 2020 15:35:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1597073731; bh=huoOYfcKyaUOK8hL/8fSmuObPoGf1DDnVZ56Nnv6+pE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=YWaUxj8Kz1lp4dhRphtKdzrppOF6U0vFF/E30D2S0y/c+YlZrgCjtqGGJ3a7S0V1S Oa//TltSOHcw5Eyilco3X08xoKeq8hPLWVz/dafmiY5gzK9ESeD3LrOqnOkcWhYDBC QWcXr46DIn0XjcWuB5c/ss4VFk2BGXh8e6pPrFLg= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728611AbgHJPf1 (ORCPT ); Mon, 10 Aug 2020 11:35:27 -0400 Received: from mail.kernel.org ([198.145.29.99]:34358 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728329AbgHJP2Q (ORCPT ); Mon, 10 Aug 2020 11:28:16 -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 189CC22CF7; Mon, 10 Aug 2020 15:28:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1597073295; bh=huoOYfcKyaUOK8hL/8fSmuObPoGf1DDnVZ56Nnv6+pE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=jCtTVjY2e6vXTjOX6FTnU99PpcuPcvoz2HxzSARFl6cAzOZP10vYw2smva5ux87rP b212KqnyASa5Ua2F2m4xrBGZUz6z4RH13Fpt1Zv1rNo52KkiD7wqCWsKqsjKs+iOjK 9kbD73J9XTP2h91K2OrZ+NnqpdqKCHdYH3aJylbc= 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 5.4 53/67] net: ethernet: mtk_eth_soc: fix MTU warnings Date: Mon, 10 Aug 2020 17:21:40 +0200 Message-Id: <20200810151812.102839623@linuxfoundation.org> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200810151809.438685785@linuxfoundation.org> References: <20200810151809.438685785@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 @@ -2878,6 +2878,8 @@ 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: