From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.9]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 327B33B8BBE; Thu, 22 Jan 2026 22:12:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.9 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769119955; cv=none; b=qPNN5nj8qycK+FPq4wjR+OLuHQwPeYdOMSc2eVVVXqPMFUpjZ3fJuMEc9r2OAho2TInEDieiveCZCX+Sny2Q4umxKb4MXLLvWBYFek5asjg/9GCkkjcouHiORb9PW8Y1ySOoxVcPoDzPUOVq7P/fSvmHy/XiT0ZAhbbTqVPp6gY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769119955; c=relaxed/simple; bh=fbAxZ8+4E0E6YP5OYQFpZpSY13OcTcToB8nH0fiQdIE=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=dDiR6RgvXUVl1E/zfJF2QiFZZLuQlpmLE7aXZTmdyThTdW6SqPnVL486Xl72uQ8n/G5tRpMbxPhZs/xDubWtNdtmxRiMgJTkyzBYwA/QZnklAWeLIRVxAdUODND3xktJsN+iLZU9IlgSvPPQ2ZLpk3+TVzlhgC8xmOru4MUKT0U= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=R6/dldaE; arc=none smtp.client-ip=198.175.65.9 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="R6/dldaE" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1769119950; x=1800655950; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=fbAxZ8+4E0E6YP5OYQFpZpSY13OcTcToB8nH0fiQdIE=; b=R6/dldaEQ3tJVvoqi3eL6FRECWDVB6svR6NaHVLIOCD7Fq25mwZ5iowE gmGRSoTlXj4lALE5f0ZT4Pg1FTvC4tObQXoBQ/5/PU5D/V5EYGms/Ayim 2b9YEtFWzwW6gcni6iAJo9mfpd/dJpFyN0a6keHrlQbzGZHwNV//kuX6k LGnr9V8k1AgQ5fleuJoC3ynfrxRd4r10K8pQ5HR5sP4assk6gEhDxcEKU HUZpsreHCYgJX0vJ3OjT0hXOon/DpFR3oBnthZzlAbXg8yEGNFCH+wXaa fvLzOHBN35Q3FMZIq+H15KYH7POoXGw0Jn0cE9dJZVK9BPRjrdqB3Pcj2 A==; X-CSE-ConnectionGUID: 4OPLtGuVQuqoA2nxl5BHQQ== X-CSE-MsgGUID: uh/TbqVEQhuYgqoN0LmFXQ== X-IronPort-AV: E=McAfee;i="6800,10657,11679"; a="93037575" X-IronPort-AV: E=Sophos;i="6.21,246,1763452800"; d="scan'208";a="93037575" Received: from orviesa007.jf.intel.com ([10.64.159.147]) by orvoesa101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Jan 2026 14:12:25 -0800 X-CSE-ConnectionGUID: Rz737VhmTIG3jaDZk0URgA== X-CSE-MsgGUID: lQbcgB2oSc+fw2btgDSC4Q== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,246,1763452800"; d="scan'208";a="206900739" Received: from lkp-server01.sh.intel.com (HELO 765f4a05e27f) ([10.239.97.150]) by orviesa007.jf.intel.com with ESMTP; 22 Jan 2026 14:12:21 -0800 Received: from kbuild by 765f4a05e27f with local (Exim 4.98.2) (envelope-from ) id 1vj2uZ-00000000THW-2Cx9; Thu, 22 Jan 2026 22:12:19 +0000 Date: Fri, 23 Jan 2026 06:12:01 +0800 From: kernel test robot To: Damien Dejean , andrew@lunn.ch, krzk+dt@kernel.org Cc: oe-kbuild-all@lists.linux.dev, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, edumazet@google.com, davem@davemloft.net, kuba@kernel.org, pabeni@redhat.com, hkallweit1@gmail.com, Damien Dejean Subject: Re: [PATCH v2 4/4] net: phy: realtek: add RTL8224 polarity support Message-ID: <202601230608.52Hf4Qza-lkp@intel.com> References: <20260121151506.813783-4-dam.dejean@gmail.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260121151506.813783-4-dam.dejean@gmail.com> Hi Damien, kernel test robot noticed the following build warnings: [auto build test WARNING on 983d014aafb14ee5e4915465bf8948e8f3a723b5] url: https://github.com/intel-lab-lkp/linux/commits/Damien-Dejean/net-phy-realtek-add-RTL8224-pair-order-support/20260122-000009 base: 983d014aafb14ee5e4915465bf8948e8f3a723b5 patch link: https://lore.kernel.org/r/20260121151506.813783-4-dam.dejean%40gmail.com patch subject: [PATCH v2 4/4] net: phy: realtek: add RTL8224 polarity support config: x86_64-defconfig (https://download.01.org/0day-ci/archive/20260123/202601230608.52Hf4Qza-lkp@intel.com/config) compiler: gcc-14 (Debian 14.2.0-19) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260123/202601230608.52Hf4Qza-lkp@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202601230608.52Hf4Qza-lkp@intel.com/ All warnings (new ones prefixed by >>): In function 'rtl8224_mdi_config_polarity', inlined from 'rtl8224_config_init' at drivers/net/phy/realtek/realtek_main.c:1761:9: >> drivers/net/phy/realtek/realtek_main.c:1739:12: warning: 'polarity' is used uninitialized [-Wuninitialized] 1739 | if (polarity & ~0xf) | ^ drivers/net/phy/realtek/realtek_main.c:1727:13: note: 'polarity' was declared here 1727 | u32 polarity, val; | ^~~~~~~~ vim +/polarity +1739 drivers/net/phy/realtek/realtek_main.c 1722 1723 static int rtl8224_mdi_config_polarity(struct phy_device *phydev) 1724 { 1725 struct device_node *np = phydev->mdio.dev.of_node; 1726 u8 port_offset = phydev->mdio.addr & 3; 1727 u32 polarity, val; 1728 int ret; 1729 1730 ret = of_property_read_u32(np, "realtek,mdi-cfg-polarity", &polarity); 1731 1732 /* Do nothing if the property is not present */ 1733 if (ret == -EINVAL) 1734 return 0; 1735 1736 if (!ret) 1737 return ret; 1738 > 1739 if (polarity & ~0xf) 1740 return -EINVAL; 1741 1742 val = __phy_package_read_mmd(phydev, 0, MDIO_MMD_VEND1, 1743 RTL8224_VND1_MDI_POLARITY_SWAP); 1744 if (val < 0) 1745 return val; 1746 1747 val &= ~(0xf << port_offset); 1748 val |= polarity << port_offset; 1749 return __phy_package_write_mmd(phydev, 0, MDIO_MMD_VEND1, 1750 RTL8224_VND1_MDI_POLARITY_SWAP, val); 1751 } 1752 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki