From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.19]) (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 8CA9127E077; Sun, 4 Jan 2026 22:39:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.19 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767566376; cv=none; b=swhXE+E4UW2ivBTb7XjnqUgJ+sHoIfxKIDv5QwYtTOMQSX5W5ZSiWIKtv/T0Y+8RnFxcLP6I53o3XBWylwFs57Wcrisj024n126+r4f7SXXsZ9NVArFIsPDNC1IngM8lAjuIh/XJ65iHCN3sfXCVaSRjjL6IvgFPu6tH5IT4tdk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767566376; c=relaxed/simple; bh=17Ezu8/N3Z3LZM7I+XRKl0i15UkVlNBbcXgYP8T38Jw=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=nKR/vpJRNv1LM8T6Uy+35VbQ+nH7dcU3DP1HheIKZsISpaA0xscZgXDa7VKltffwMoAeLFw3j2xTnjalPqbqtevAZKN1PHZoYZlH6J19zmUdpKVZyQ7rYCt7WjiDtD8ZDpts2qxUFroL4lzCylTvhMP1iTnQTVVOrIYI15nU77k= 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=N62eSF0V; arc=none smtp.client-ip=192.198.163.19 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="N62eSF0V" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1767566375; x=1799102375; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=17Ezu8/N3Z3LZM7I+XRKl0i15UkVlNBbcXgYP8T38Jw=; b=N62eSF0Va2kK6nwaTz+gpI6gJ8rCosARb3xEaPKE3D5iVfvJ1VJ8Om+H Q79wowUeIwjCNlTrVJngIMWVyLnkO0bgg9V4D1jGq/0Lp2VZ/fEO3MSOe urloAPGnbZQ8yGJstu11hkeR4YsKMkL5AUzc4w4oIVy7Stfms+17KktTR /tL6u83py+b4D6vQtN4nV/gnN0LnVlilcO29RpL7gzIo6d+TsnsrIZVHe osE7IV+3zXHM35wFPbmT/DSKuGWERXPej0qc/qRhYQ1TO0TjwMWwlqoW3 Qj8PRg3/t3woYkI3RvvYxYJOC6BXUyVvT3yJ51HoHzXBtgjzrKRdK5vJv Q==; X-CSE-ConnectionGUID: yIb1hq/KQ+yq/62FOLF14A== X-CSE-MsgGUID: A2bfI7HuSICoIIWKfhj45w== X-IronPort-AV: E=McAfee;i="6800,10657,11661"; a="67953289" X-IronPort-AV: E=Sophos;i="6.21,202,1763452800"; d="scan'208";a="67953289" Received: from fmviesa010.fm.intel.com ([10.60.135.150]) by fmvoesa113.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Jan 2026 14:39:34 -0800 X-CSE-ConnectionGUID: vC+DQ5pkSwaMyp0CWDmDhw== X-CSE-MsgGUID: nqfsVbT7Q0GXrxuNhBNw5g== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,202,1763452800"; d="scan'208";a="203217809" Received: from igk-lkp-server01.igk.intel.com (HELO 92b2e8bd97aa) ([10.211.93.152]) by fmviesa010.fm.intel.com with ESMTP; 04 Jan 2026 14:39:30 -0800 Received: from kbuild by 92b2e8bd97aa with local (Exim 4.98.2) (envelope-from ) id 1vcWky-000000000y9-1BPW; Sun, 04 Jan 2026 22:39:28 +0000 Date: Sun, 4 Jan 2026 23:38:51 +0100 From: kernel test robot To: Daniel Golle , Andrew Lunn , Heiner Kallweit , Russell King , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Vladimir Oltean , Michael Klein , Aleksander Jan Bajkowski , Bevan Weiss , linux-kernel@vger.kernel.org Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, netdev@vger.kernel.org Subject: Re: [PATCH net-next 3/4] net: phy: realtek: use paged access for MDIO_MMD_VEND2 in C22 mode Message-ID: <202601042339.7aMa6atC-lkp@intel.com> References: Precedence: bulk X-Mailing-List: linux-kernel@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: Hi Daniel, kernel test robot noticed the following build errors: [auto build test ERROR on net-next/main] url: https://github.com/intel-lab-lkp/linux/commits/Daniel-Golle/net-phy-realtek-fix-whitespace-in-struct-phy_driver-initializers/20260104-211500 base: net-next/main patch link: https://lore.kernel.org/r/d7053fe51fb857b634880be5dcec253858f01aff.1767531485.git.daniel%40makrotopia.org patch subject: [PATCH net-next 3/4] net: phy: realtek: use paged access for MDIO_MMD_VEND2 in C22 mode config: x86_64-kexec (https://download.01.org/0day-ci/archive/20260104/202601042339.7aMa6atC-lkp@intel.com/config) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260104/202601042339.7aMa6atC-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/202601042339.7aMa6atC-lkp@intel.com/ All errors (new ones prefixed by >>): >> drivers/net/phy/realtek/realtek_main.c:1261:16: error: use of undeclared identifier 'mmdreg'; did you mean 'mmdrop'? 1261 | devnum, mmdreg); | ^~~~~~ | mmdrop include/linux/sched/mm.h:47:20: note: 'mmdrop' declared here 47 | static inline void mmdrop(struct mm_struct *mm) | ^ drivers/net/phy/realtek/realtek_main.c:1270:19: error: use of undeclared identifier 'mmdreg'; did you mean 'mmdrop'? 1270 | MII_MMD_DATA, mmdreg); | ^~~~~~ | mmdrop include/linux/sched/mm.h:47:20: note: 'mmdrop' declared here 47 | static inline void mmdrop(struct mm_struct *mm) | ^ drivers/net/phy/realtek/realtek_main.c:1309:17: error: use of undeclared identifier 'mmdreg'; did you mean 'mmdrop'? 1309 | devnum, mmdreg, val); | ^~~~~~ | mmdrop include/linux/sched/mm.h:47:20: note: 'mmdrop' declared here 47 | static inline void mmdrop(struct mm_struct *mm) | ^ drivers/net/phy/realtek/realtek_main.c:1318:19: error: use of undeclared identifier 'mmdreg'; did you mean 'mmdrop'? 1318 | MII_MMD_DATA, mmdreg); | ^~~~~~ | mmdrop include/linux/sched/mm.h:47:20: note: 'mmdrop' declared here 47 | static inline void mmdrop(struct mm_struct *mm) | ^ 4 errors generated. vim +1261 drivers/net/phy/realtek/realtek_main.c 1248 1249 /* RTL822x cannot access MDIO_MMD_VEND2 via MII_MMD_CTRL/MII_MMD_DATA. 1250 * A mapping to use paged access needs to be used instead. 1251 * All other MMD devices can be accessed as usual. 1252 */ 1253 static int rtl822xb_read_mmd(struct phy_device *phydev, int devnum, u16 reg) 1254 { 1255 int oldpage, ret, read_ret; 1256 u16 page; 1257 1258 /* Use Clause-45 bus access in case it is available */ 1259 if (phydev->is_c45) 1260 return __mdiobus_c45_read(phydev->mdio.bus, phydev->mdio.addr, > 1261 devnum, mmdreg); 1262 1263 /* Use indirect access via MII_MMD_CTRL and MII_MMD_DATA for all 1264 * MMDs except MDIO_MMD_VEND2 1265 */ 1266 if (devnum != MDIO_MMD_VEND2) { 1267 __mdiobus_write(phydev->mdio.bus, phydev->mdio.addr, 1268 MII_MMD_CTRL, devnum); 1269 __mdiobus_write(phydev->mdio.bus, phydev->mdio.addr, 1270 MII_MMD_DATA, mmdreg); 1271 __mdiobus_write(phydev->mdio.bus, phydev->mdio.addr, 1272 MII_MMD_CTRL, devnum | MII_MMD_CTRL_NOINCR); 1273 1274 return __mdiobus_read(phydev->mdio.bus, phydev->mdio.addr, 1275 MII_MMD_DATA); 1276 } 1277 1278 /* Use paged access for MDIO_MMD_VEND2 over Clause-22 */ 1279 page = RTL822X_VND2_TO_PAGE(reg); 1280 oldpage = __phy_read(phydev, RTL821x_PAGE_SELECT); 1281 if (oldpage < 0) 1282 return ret; 1283 1284 if (oldpage != page) { 1285 ret = __phy_write(phydev, RTL821x_PAGE_SELECT, page); 1286 if (ret < 0) 1287 return ret; 1288 } 1289 1290 read_ret = __phy_read(phydev, RTL822X_VND2_TO_PAGE_REG(reg)); 1291 if (oldpage != page) { 1292 ret = __phy_write(phydev, RTL821x_PAGE_SELECT, oldpage); 1293 if (ret < 0) 1294 return ret; 1295 } 1296 1297 return read_ret; 1298 } 1299 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki