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a="1162285" X-IronPort-AV: E=Sophos;i="6.27,168,1787036400"; d="scan'208";a="1162285" Received: from fmviesa004.fm.intel.com ([10.60.135.144]) by orvoesa107.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Oct 2026 19:17:48 -0700 X-CSE-ConnectionGUID: f/pxMlMvSTKi/qRoZOOMkQ== X-CSE-MsgGUID: VKslVvdaRkyzj1W+tnmR6w== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.27,168,1787036400"; d="scan'208";a="2704000" Received: from lkp-server01.sh.intel.com (HELO 0caa9d2d175c) ([10.239.97.150]) by fmviesa004.fm.intel.com with ESMTP; 19 Oct 2026 19:17:42 -0700 Received: from kbuild by 0caa9d2d175c with local (Exim 4.98.2) (envelope-from ) id 1xIzQ3-00000000Ml8-28S5; Tue, 20 Oct 2026 02:17:39 +0000 Date: Tue, 20 Oct 2026 10:17:37 +0800 From: kernel test robot To: Kyle Switch , andrew@lunn.ch, olteanv@gmail.com, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, mmyangfl@gmail.com, horms@kernel.org, linux@armlinux.org.uk, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, ming.xu@motor-comm.com, xiaolin.xu@motor-comm.com, jianmin.wang@motor-comm.com, wei.zhang@gl-inet.com, sijia.huang@gl-inet.com Subject: Re: [PATCH net-next v15 5/5] net: dsa: motorcomm: Add support for Motorcomm YT922x Message-ID: <202610200942.aPmEAZ8C-lkp@intel.com> References: <20261019110543.2999419-6-kyle.switch@motor-comm.com> X-Mailing-List: netdev@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20261019110543.2999419-6-kyle.switch@motor-comm.com> Hi Kyle, kernel test robot noticed the following build warnings: [auto build test WARNING on net-next/main] url: https://github.com/intel-lab-lkp/linux/commits/Kyle-Switch/net-dsa-motorcomm-initialize-dsa_switch-based-on-chipid/20261019-190539 base: net-next/main patch link: https://lore.kernel.org/r/20261019110543.2999419-6-kyle.switch%40motor-comm.com patch subject: [PATCH net-next v15 5/5] net: dsa: motorcomm: Add support for Motorcomm YT922x config: hexagon-allmodconfig (https://download.01.org/0day-ci/archive/20261020/202610200942.aPmEAZ8C-lkp@intel.com/config) compiler: clang version 24.0.0git (https://github.com/llvm/llvm-project 6719b9e31d6a93099612c474eec76d9f41d0275a) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261020/202610200942.aPmEAZ8C-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/202610200942.aPmEAZ8C-lkp@intel.com/ All warnings (new ones prefixed by >>): >> drivers/net/dsa/motorcomm/chip.c:2755:2: warning: unannotated fall-through between switch labels [-Wimplicit-fallthrough] 2755 | default: | ^ drivers/net/dsa/motorcomm/chip.c:2755:2: note: insert '__attribute__((fallthrough));' to silence this warning 2755 | default: | ^ | __attribute__((fallthrough)); drivers/net/dsa/motorcomm/chip.c:2755:2: note: insert 'break;' to avoid fall-through 2755 | default: | ^ | break; 1 warning generated. vim +2755 drivers/net/dsa/motorcomm/chip.c 2730 2731 static int 2732 yt922x_port_config(struct yt921x_priv *priv, int port, unsigned int mode, 2733 phy_interface_t interface) 2734 { 2735 struct device *dev = yt921x_priv_to_device(priv); 2736 const struct yt921x_info *info = priv->info; 2737 struct yt921x_port *pp = &priv->ports[port]; 2738 2739 if (BIT(port) & info->internal_mask) { 2740 if (interface != PHY_INTERFACE_MODE_INTERNAL) 2741 goto err; 2742 return 0; 2743 } 2744 2745 switch (interface) { 2746 /* SERDES */ 2747 case PHY_INTERFACE_MODE_SGMII: 2748 case PHY_INTERFACE_MODE_100BASEX: 2749 case PHY_INTERFACE_MODE_1000BASEX: 2750 case PHY_INTERFACE_MODE_2500BASEX: 2751 case PHY_INTERFACE_MODE_USXGMII: 2752 if (!(BIT(port) & info->serdes_mask)) 2753 goto err; 2754 pp->serdes = true; > 2755 default: 2756 goto err; 2757 } 2758 2759 return 0; 2760 2761 err: 2762 dev_err(dev, "Wrong mode %d on port %d\n", interface, port); 2763 return -EINVAL; 2764 } 2765 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki