From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) (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 C1E1D626 for ; Thu, 13 Apr 2023 16:30:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1681403457; x=1712939457; h=date:from:to:cc:subject:message-id:mime-version; bh=TtrQ5cBLH1tOZuhzKbYuidF6Hh2gW2nAl2PwTTzqMGU=; b=nooXLz10Hv/gmnpy8WVAuFOrJVcGCcemdAMIPpQPUVAuvGB58ewehqUI 0d608VD2RRCSM6NniKBvnaDHpD2frTWk49T4dRui5HAUszNNbWEsXV2Wt qqJJ+j5fOnpxVEyDM/IbsXlUBlKQq0slgSBY5fy1jbo/8Q7yPb8YIYSz9 bEBuD3cnCs7ECcUvPekW1EhJuBGV7Ym90CGRMwFIrFsuR8IeUYnfHBwBQ oAB2PjxzE8cF+bzl5T1+rtumNgqve09IhAx+IgmyIgQUHn4LDGGsbCKhX lDDh+nw4wKpQyyFdigh9Yf/B7YXscQC50hX2a52dzLWH8W+wPXtp5De45 Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10679"; a="430520584" X-IronPort-AV: E=Sophos;i="5.99,194,1677571200"; d="scan'208";a="430520584" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Apr 2023 09:30:57 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10679"; a="754073719" X-IronPort-AV: E=Sophos;i="5.99,194,1677571200"; d="scan'208";a="754073719" Received: from lkp-server01.sh.intel.com (HELO b613635ddfff) ([10.239.97.150]) by fmsmga008.fm.intel.com with ESMTP; 13 Apr 2023 09:30:55 -0700 Received: from kbuild by b613635ddfff with local (Exim 4.96) (envelope-from ) id 1pmzqY-000Yon-2g; Thu, 13 Apr 2023 16:30:54 +0000 Date: Fri, 14 Apr 2023 00:30:25 +0800 From: kernel test robot To: cros-kernel-buildreports@googlegroups.com, Guenter Roeck Cc: oe-kbuild-all@lists.linux.dev Subject: [chrome-os:chromeos-5.10 27/36] drivers/net/wireless/mediatek/mt76/mt7921/mcu.c:148:40: warning: variable 'res' set but not used Message-ID: <202304140025.JDd41CCB-lkp@intel.com> Precedence: bulk X-Mailing-List: oe-kbuild-all@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline tree: https://chromium.googlesource.com/chromiumos/third_party/kernel chromeos-5.10 head: 44452e4236561f6e36ec587805a52b683e2804c9 commit: ba11d449cc75d38642771c4254d9ac6cca0dab30 [27/36] FROMLIST: mt76: mt7921: fix kernel panic by accessing unallocated eeprom.data config: arc-randconfig-r043-20230409 (https://download.01.org/0day-ci/archive/20230414/202304140025.JDd41CCB-lkp@intel.com/config) compiler: arceb-elf-gcc (GCC) 12.1.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git remote add chrome-os https://chromium.googlesource.com/chromiumos/third_party/kernel git fetch --no-tags chrome-os chromeos-5.10 git checkout ba11d449cc75d38642771c4254d9ac6cca0dab30 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arc olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arc SHELL=/bin/bash M=drivers/net/wireless/mediatek/mt76/mt7921 If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot | Link: https://lore.kernel.org/oe-kbuild-all/202304140025.JDd41CCB-lkp@intel.com/ All warnings (new ones prefixed by >>): drivers/net/wireless/mediatek/mt76/mt7921/mcu.c: In function 'mt7921_mcu_parse_eeprom': >> drivers/net/wireless/mediatek/mt76/mt7921/mcu.c:148:40: warning: variable 'res' set but not used [-Wunused-but-set-variable] 148 | struct mt7921_mcu_eeprom_info *res; | ^~~ vim +/res +148 drivers/net/wireless/mediatek/mt76/mt7921/mcu.c da3e3b87f8dd3d4 Sean Wang 2021-01-28 144 da3e3b87f8dd3d4 Sean Wang 2021-01-28 145 static int da3e3b87f8dd3d4 Sean Wang 2021-01-28 146 mt7921_mcu_parse_eeprom(struct mt76_dev *dev, struct sk_buff *skb) da3e3b87f8dd3d4 Sean Wang 2021-01-28 147 { da3e3b87f8dd3d4 Sean Wang 2021-01-28 @148 struct mt7921_mcu_eeprom_info *res; da3e3b87f8dd3d4 Sean Wang 2021-01-28 149 da3e3b87f8dd3d4 Sean Wang 2021-01-28 150 if (!skb) da3e3b87f8dd3d4 Sean Wang 2021-01-28 151 return -EINVAL; da3e3b87f8dd3d4 Sean Wang 2021-01-28 152 da3e3b87f8dd3d4 Sean Wang 2021-01-28 153 skb_pull(skb, sizeof(struct mt7921_mcu_rxd)); da3e3b87f8dd3d4 Sean Wang 2021-01-28 154 da3e3b87f8dd3d4 Sean Wang 2021-01-28 155 res = (struct mt7921_mcu_eeprom_info *)skb->data; da3e3b87f8dd3d4 Sean Wang 2021-01-28 156 da3e3b87f8dd3d4 Sean Wang 2021-01-28 157 return 0; da3e3b87f8dd3d4 Sean Wang 2021-01-28 158 } da3e3b87f8dd3d4 Sean Wang 2021-01-28 159 :::::: The code at line 148 was first introduced by commit :::::: da3e3b87f8dd3d44e83c7ab744bd1ad6ab9f8468 UPSTREAM: mt76: mt7921: add MCU support :::::: TO: Sean Wang :::::: CC: Commit Bot -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests