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=-5.3 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS, USER_AGENT_MUTT 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 3BC20C04AA7 for ; Mon, 13 May 2019 12:50:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CDADD21019 for ; Mon, 13 May 2019 12:50:10 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=lunn.ch header.i=@lunn.ch header.b="a8mUiJqk" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730000AbfEMMuK (ORCPT ); Mon, 13 May 2019 08:50:10 -0400 Received: from vps0.lunn.ch ([185.16.172.187]:33718 "EHLO vps0.lunn.ch" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728943AbfEMMuJ (ORCPT ); Mon, 13 May 2019 08:50:09 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lunn.ch; s=20171124; h=In-Reply-To:Content-Type:MIME-Version:References:Message-ID: Subject:Cc:To:From:Date:Sender:Reply-To:Content-Transfer-Encoding:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=pv45FV0SS8BEAUpDVaxiRJs217OXc9ARoRbuV0Fvm4M=; b=a8mUiJqkoKnPfssjVdTW193/ay xDouV5CxbocUpAszWL5LLdiSbycwkqQPd7tqhn/KF1tUB/2isj6CKJ2102u6Bo3nME24hp/VKgqnF b0fJCGtMem0Xh/CzCE9ODwSWaHbngCOLgzOJSPs2DNbMt9tyD14wYiKwbZiTw8DlgbSU=; Received: from andrew by vps0.lunn.ch with local (Exim 4.89) (envelope-from ) id 1hQAP4-0008BI-Ec; Mon, 13 May 2019 14:50:02 +0200 Date: Mon, 13 May 2019 14:50:02 +0200 From: Andrew Lunn To: Kunihiko Hayashi Cc: Florian Fainelli , Heiner Kallweit , "David S. Miller" , netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH net] net: phy: realtek: Replace phy functions with non-locked version in rtl8211e_config_init() Message-ID: <20190513125002.GB28969@lunn.ch> References: <1557729705-6443-1-git-send-email-hayashi.kunihiko@socionext.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1557729705-6443-1-git-send-email-hayashi.kunihiko@socionext.com> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, May 13, 2019 at 03:41:45PM +0900, Kunihiko Hayashi wrote: > After calling phy_select_page() and until calling phy_restore_page(), > the mutex 'mdio_lock' is already locked, so the driver should use > non-locked version of phy functions. Or there will be a deadlock with > 'mdio_lock'. > > This replaces phy functions called from rtl8211e_config_init() to avoid > the deadlock issue. > > Fixes: f81dadbcf7fd ("net: phy: realtek: Add rtl8211e rx/tx delays config") > Signed-off-by: Kunihiko Hayashi Reviewed-by: Andrew Lunn Andrew