From patchwork Sat Apr 11 12:09:14 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 228029 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, 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 27AE3C2BB85 for ; Sat, 11 Apr 2020 12:24:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id F19DB2063A for ; Sat, 11 Apr 2020 12:24:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1586607872; bh=84Us8TtqjpYTm64Jpq3O8b8yyDAj81hEnOaZ/2+SBk8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=MFmbAwlvN53G/a6utjp67YHjS6ig5/f35/2AYARw+/6uLLrLmmg9Vwc9o9fBdGDu6 mfNNLUl4ad5L+0Ze8/iFs3iXtJ1bLVjotXnuZ5be0146dWWEIqPvQvA9u8zlmP4oKb 2SiLuBXNoNLqQa9KFA5qYWO80+SXKELxrAoeusso= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728183AbgDKMYa (ORCPT ); Sat, 11 Apr 2020 08:24:30 -0400 Received: from mail.kernel.org ([198.145.29.99]:52706 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728142AbgDKMRy (ORCPT ); Sat, 11 Apr 2020 08:17:54 -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 344B220673; Sat, 11 Apr 2020 12:17:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1586607474; bh=84Us8TtqjpYTm64Jpq3O8b8yyDAj81hEnOaZ/2+SBk8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=FMoEgH72ctIJkydht205Y2UmGe1h026TeWAgAFZKHuuCVJSlZz8o+C4nfXHss4674 76lMWxO5Gk2wTfHfcWJzJshR/naNyyNNcEa6gKqv5uWwWXxeFiSIVADDU568E6jRYZ +FlF9hirh51OczZ1UxtmLWdnfKRKQhKDfGs7IkAg= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Florian Fainelli , Vivien Didelot , "David S. Miller" Subject: [PATCH 5.4 05/41] net: dsa: bcm_sf2: Ensure correct sub-node is parsed Date: Sat, 11 Apr 2020 14:09:14 +0200 Message-Id: <20200411115504.486694998@linuxfoundation.org> X-Mailer: git-send-email 2.26.0 In-Reply-To: <20200411115504.124035693@linuxfoundation.org> References: <20200411115504.124035693@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: Florian Fainelli [ Upstream commit afa3b592953bfaecfb4f2f335ec5f935cff56804 ] When the bcm_sf2 was converted into a proper platform device driver and used the new dsa_register_switch() interface, we would still be parsing the legacy DSA node that contained all the port information since the platform firmware has intentionally maintained backward and forward compatibility to client programs. Ensure that we do parse the correct node, which is "ports" per the revised DSA binding. Fixes: d9338023fb8e ("net: dsa: bcm_sf2: Make it a real platform device driver") Signed-off-by: Florian Fainelli Reviewed-by: Vivien Didelot Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- drivers/net/dsa/bcm_sf2.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) --- a/drivers/net/dsa/bcm_sf2.c +++ b/drivers/net/dsa/bcm_sf2.c @@ -1053,6 +1053,7 @@ static int bcm_sf2_sw_probe(struct platf const struct bcm_sf2_of_data *data; struct b53_platform_data *pdata; struct dsa_switch_ops *ops; + struct device_node *ports; struct bcm_sf2_priv *priv; struct b53_device *dev; struct dsa_switch *ds; @@ -1115,7 +1116,11 @@ static int bcm_sf2_sw_probe(struct platf set_bit(0, priv->cfp.used); set_bit(0, priv->cfp.unique); - bcm_sf2_identify_ports(priv, dn->child); + ports = of_find_node_by_name(dn, "ports"); + if (ports) { + bcm_sf2_identify_ports(priv, ports); + of_node_put(ports); + } priv->irq0 = irq_of_parse_and_map(dn, 0); priv->irq1 = irq_of_parse_and_map(dn, 1);