From patchwork Fri Jan 8 11:57:57 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Heiner Kallweit X-Patchwork-Id: 359541 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=-14.3 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_SANE_1 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 E8B79C433E0 for ; Fri, 8 Jan 2021 12:01:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8EC84239ED for ; Fri, 8 Jan 2021 12:01:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726600AbhAHMBH (ORCPT ); Fri, 8 Jan 2021 07:01:07 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60038 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725791AbhAHMBG (ORCPT ); Fri, 8 Jan 2021 07:01:06 -0500 Received: from mail-wm1-x336.google.com (mail-wm1-x336.google.com [IPv6:2a00:1450:4864:20::336]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A90D3C0612F4 for ; Fri, 8 Jan 2021 04:00:25 -0800 (PST) Received: by mail-wm1-x336.google.com with SMTP id e25so8222592wme.0 for ; Fri, 08 Jan 2021 04:00:25 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:from:to:cc:references:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=jt3zw0dfENHCHUmf/u475QK+Rs4cwPdEOzlKvH1tBNE=; b=QW7d0W+Q0PnUu+/Ku5fWnArt0/2OgwcB/A7Tk3xy8lG15HV7WinZYkjR7GOkshat6D /+WOEnuG2UKiQ36zh7G7j/7fPdvqf756Fvl+SdJvGmabpS/WmOHRVMvC6cKLq/0fW1CZ 2hb5wH/cm/VLLfaYd74/D4IJ59xD85AauVSy29IPEMa3H7AvgnsSwxDdYfmJrz9cYica giBelTGebnP8XYb40QRVQoBlAPm6b/8AdyYPoSQaIjmCcWMNWUCnuRpVOnRAFX6BLLhC n1c8vMgRjzAWPuCet6pGAs0riE/FuJk8ezLbHlRLy61x8nj5DjNzPhshjPy5jCFqBZ3s o+Ug== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:from:to:cc:references:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=jt3zw0dfENHCHUmf/u475QK+Rs4cwPdEOzlKvH1tBNE=; b=WrdhCbmlM7EtlSTAMtiSyab9lFIxJc+abmG9frI2XBj7M325g+o5VzZtk7l6FMPznX a2RoNKTc69yxEx7v+xtIjN9d3/ODRCUaBVyxqehtIKCXUm6XxFFl0n5tPfnoh/sQmVup EUpf/fpEsMqtsaDW5p9LgvgxZxPiJ7yvhaIx10HB8jQh4nz6Ap45EO1T65n8pSMrdWYW fwU9LUrbJpogBNgiaKciTopaOXC+LIp/LFAt1omu06V9a+gJobys68xXVcz/0pfM1kUt pkzDr/raBTNnx5TrAKBWv7Wt59CLbyG7TIvMcHrqA/YHkMW8hXHO9psHrHhlrY+YBFjO B0Hw== X-Gm-Message-State: AOAM533teSb7sSf5Vs/rH3/e1A5cCR82FTzp+wRFn7rH45caH/KquCPf i4Edze6i/pTdKPhyM9WHPMZvmcMtSiw= X-Google-Smtp-Source: ABdhPJyRunovPtyLyzY17WzhUIK7WXIPLetyA0LkkB7rbLFdeewhDzKFNI2RoaNPPvo34n35NDcVjQ== X-Received: by 2002:a1c:220a:: with SMTP id i10mr2703715wmi.93.1610107223898; Fri, 08 Jan 2021 04:00:23 -0800 (PST) Received: from ?IPv6:2003:ea:8f06:5500:6dbb:aa76:4e1a:5cc4? (p200300ea8f0655006dbbaa764e1a5cc4.dip0.t-ipconnect.de. [2003:ea:8f06:5500:6dbb:aa76:4e1a:5cc4]) by smtp.googlemail.com with ESMTPSA id o8sm13095907wrm.17.2021.01.08.04.00.22 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 08 Jan 2021 04:00:23 -0800 (PST) Subject: [PATCH net-next v2 1/3] r8169: replace BUG_ON with WARN in _rtl_eri_write From: Heiner Kallweit To: Jakub Kicinski , David Miller , Realtek linux nic maintainers Cc: "netdev@vger.kernel.org" References: <938caef4-8a0b-bbbd-66aa-76f758ff877a@gmail.com> Message-ID: Date: Fri, 8 Jan 2021 12:57:57 +0100 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.6.0 MIME-Version: 1.0 In-Reply-To: <938caef4-8a0b-bbbd-66aa-76f758ff877a@gmail.com> Content-Language: en-US Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Use WARN here to avoid stopping the system. In addition print the addr and mask values that triggered the warning. v2: - return on WARN to avoid an invalid register write Signed-off-by: Heiner Kallweit --- drivers/net/ethernet/realtek/r8169_main.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c index c9abc7ccb..317b34723 100644 --- a/drivers/net/ethernet/realtek/r8169_main.c +++ b/drivers/net/ethernet/realtek/r8169_main.c @@ -763,7 +763,9 @@ static void _rtl_eri_write(struct rtl8169_private *tp, int addr, u32 mask, { u32 cmd = ERIAR_WRITE_CMD | type | mask | addr; - BUG_ON((addr & 3) || (mask == 0)); + if (WARN(addr & 3 || !mask, "addr: 0x%x, mask: 0x%08x\n", addr, mask)) + return; + RTL_W32(tp, ERIDR, val); r8168fp_adjust_ocp_cmd(tp, &cmd, type); RTL_W32(tp, ERIAR, cmd);