From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.21]) (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 6C94D1FF61E; Thu, 26 Mar 2026 03:18:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.21 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774495138; cv=none; b=f9jLzUCLr0MwDd9B4dr1Ly7W/OSGw/eqcjPY5uczvFvRuId4ZGfVRMCK34hH9Dl8bmg1YIH2shm09LKIW3cPcloD7JYld5o07NqLDIN+HyXgwUgioz7mCh5UFGjjBKDtr3Wxpod3SSRJlI8uSsOpSjQ02zPbPU9U11AfwDwlzNI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774495138; c=relaxed/simple; bh=dJUg5gPxDIq34osx4R7Q4lZhpTg3RWPl4Bs4TJJV6K8=; h=Date:From:To:Cc:Subject:Message-ID:MIME-Version:Content-Type; b=FtPiesLMWtNXSnnIEVu2xsmvUQjK30FPWX6vwoFYr58M9VtvfK9dRCDTG/KCsx4dvgP7BVPT4bY3CPdgN5SgWxfvzIkPKRdYdYJrvAaTizwTsP9CUVlhBWimD2liqwUZptFHCGOSYK70PJTA72wwuZ80jvKGv0mu8IoZMDNk0Hw= 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=O6xPwdLe; arc=none smtp.client-ip=198.175.65.21 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="O6xPwdLe" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1774495137; x=1806031137; h=date:from:to:cc:subject:message-id:mime-version; bh=dJUg5gPxDIq34osx4R7Q4lZhpTg3RWPl4Bs4TJJV6K8=; b=O6xPwdLe49lAVGGaIb62t6ynm2N+1CwEAwyr30F9KTJVY3Yt9DEDkfYO VSSR+A8EbcuUSf7hJOYtPBv7vSzg9V3hzL5126J2riPWm6mo4Evsawz1t PR3d9rzA0oFV2pZNvgYSFRoNj7Kn+UtYwJDyuFkxntuWYQvPuXJS/bowH Z5T3xCbX4cy3eZIxKn412VraeAsPOakzN6ttAAS3NXw2ycJR2knBvjENE xkQd7Rq1YRrnrCiPTesrapNZ+xcGQLXG+llV6EhTZITW+ox/oJsqHzIx1 cdpvi2Lhytdf1KwNhvrFr8Q6tVWjQquKDTkwbsOk+fRjlxCffjnDAVWrQ Q==; X-CSE-ConnectionGUID: bH+V8pRoTAqIibW/7skEzA== X-CSE-MsgGUID: 8nVgSiIVR/CBtsU7Xyz07Q== X-IronPort-AV: E=McAfee;i="6800,10657,11740"; a="75430636" X-IronPort-AV: E=Sophos;i="6.23,141,1770624000"; d="scan'208";a="75430636" Received: from fmviesa006.fm.intel.com ([10.60.135.146]) by orvoesa113.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Mar 2026 20:18:56 -0700 X-CSE-ConnectionGUID: AnMrPLw0Qsyoffpa+2lESQ== X-CSE-MsgGUID: hSJ0ZBvaSpad+jbNVRc1Hw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.23,141,1770624000"; d="scan'208";a="220029339" Received: from lkp-server01.sh.intel.com (HELO 3905d212be1b) ([10.239.97.150]) by fmviesa006.fm.intel.com with ESMTP; 25 Mar 2026 20:18:54 -0700 Received: from kbuild by 3905d212be1b with local (Exim 4.98.2) (envelope-from ) id 1w5bFD-0000000083F-3gqt; Thu, 26 Mar 2026 03:18:51 +0000 Date: Thu, 26 Mar 2026 11:18:17 +0800 From: kernel test robot To: "Thomas =?utf-8?Q?Wei=C3=9Fschuh"?= Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev Subject: [thomas-weissschuh:b4/kunit-kselftests 3/18] arch/arm/kernel/signal.c:143:15: error: variable 'aux' set but not used Message-ID: <202603261127.DR8KsiwA-lkp@intel.com> User-Agent: s-nail v14.9.25 Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii tree: https://git.kernel.org/pub/scm/linux/kernel/git/thomas.weissschuh/linux.git b4/kunit-kselftests head: 6816331cc815bfc31edb2ff1aaad0d882f0bf92b commit: fb3ab97786e927b684927c71a78479a10f6d2995 [3/18] run-tests config: arm-allnoconfig (https://download.01.org/0day-ci/archive/20260326/202603261127.DR8KsiwA-lkp@intel.com/config) compiler: clang version 23.0.0git (https://github.com/llvm/llvm-project 054e11d1a17e5ba88bb1a8ef32fad3346e80b186) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260326/202603261127.DR8KsiwA-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/202603261127.DR8KsiwA-lkp@intel.com/ All errors (new ones prefixed by >>): >> arch/arm/kernel/signal.c:143:15: error: variable 'aux' set but not used [-Werror,-Wunused-but-set-variable] 143 | char __user *aux; | ^ 1 error generated. vim +/aux +143 arch/arm/kernel/signal.c 82c6f5a5b3e91e Imre Deak 2010-04-11 135 ^1da177e4c3f41 Linus Torvalds 2005-04-16 136 /* ^1da177e4c3f41 Linus Torvalds 2005-04-16 137 * Do a signal return; undo the signal stack. These are aligned to 64-bit. ^1da177e4c3f41 Linus Torvalds 2005-04-16 138 */ ^1da177e4c3f41 Linus Torvalds 2005-04-16 139 680714844fd1dc Russell King 2006-06-15 140 static int restore_sigframe(struct pt_regs *regs, struct sigframe __user *sf) ^1da177e4c3f41 Linus Torvalds 2005-04-16 141 { c32cd419d6650e Russell King 2018-07-09 142 struct sigcontext context; ce184a0dee92a0 Dave Martin 2017-06-30 @143 char __user *aux; 680714844fd1dc Russell King 2006-06-15 144 sigset_t set; 680714844fd1dc Russell King 2006-06-15 145 int err; 680714844fd1dc Russell King 2006-06-15 146 680714844fd1dc Russell King 2006-06-15 147 err = __copy_from_user(&set, &sf->uc.uc_sigmask, sizeof(set)); 77097ae503b170 Al Viro 2012-04-27 148 if (err == 0) 101d9b0dedbc9e Matt Fleming 2012-03-05 149 set_current_blocked(&set); ^1da177e4c3f41 Linus Torvalds 2005-04-16 150 c32cd419d6650e Russell King 2018-07-09 151 err |= __copy_from_user(&context, &sf->uc.uc_mcontext, sizeof(context)); c32cd419d6650e Russell King 2018-07-09 152 if (err == 0) { c32cd419d6650e Russell King 2018-07-09 153 regs->ARM_r0 = context.arm_r0; c32cd419d6650e Russell King 2018-07-09 154 regs->ARM_r1 = context.arm_r1; c32cd419d6650e Russell King 2018-07-09 155 regs->ARM_r2 = context.arm_r2; c32cd419d6650e Russell King 2018-07-09 156 regs->ARM_r3 = context.arm_r3; c32cd419d6650e Russell King 2018-07-09 157 regs->ARM_r4 = context.arm_r4; c32cd419d6650e Russell King 2018-07-09 158 regs->ARM_r5 = context.arm_r5; c32cd419d6650e Russell King 2018-07-09 159 regs->ARM_r6 = context.arm_r6; c32cd419d6650e Russell King 2018-07-09 160 regs->ARM_r7 = context.arm_r7; c32cd419d6650e Russell King 2018-07-09 161 regs->ARM_r8 = context.arm_r8; c32cd419d6650e Russell King 2018-07-09 162 regs->ARM_r9 = context.arm_r9; c32cd419d6650e Russell King 2018-07-09 163 regs->ARM_r10 = context.arm_r10; c32cd419d6650e Russell King 2018-07-09 164 regs->ARM_fp = context.arm_fp; c32cd419d6650e Russell King 2018-07-09 165 regs->ARM_ip = context.arm_ip; c32cd419d6650e Russell King 2018-07-09 166 regs->ARM_sp = context.arm_sp; c32cd419d6650e Russell King 2018-07-09 167 regs->ARM_lr = context.arm_lr; c32cd419d6650e Russell King 2018-07-09 168 regs->ARM_pc = context.arm_pc; c32cd419d6650e Russell King 2018-07-09 169 regs->ARM_cpsr = context.arm_cpsr; c32cd419d6650e Russell King 2018-07-09 170 } ^1da177e4c3f41 Linus Torvalds 2005-04-16 171 ^1da177e4c3f41 Linus Torvalds 2005-04-16 172 err |= !valid_user_regs(regs); ^1da177e4c3f41 Linus Torvalds 2005-04-16 173 ce184a0dee92a0 Dave Martin 2017-06-30 174 aux = (char __user *) sf->uc.uc_regspace; ^1da177e4c3f41 Linus Torvalds 2005-04-16 175 #ifdef CONFIG_IWMMXT ce184a0dee92a0 Dave Martin 2017-06-30 176 if (err == 0) ce184a0dee92a0 Dave Martin 2017-06-30 177 err |= restore_iwmmxt_context(&aux); ^1da177e4c3f41 Linus Torvalds 2005-04-16 178 #endif ^1da177e4c3f41 Linus Torvalds 2005-04-16 179 #ifdef CONFIG_VFP 82c6f5a5b3e91e Imre Deak 2010-04-11 180 if (err == 0) ce184a0dee92a0 Dave Martin 2017-06-30 181 err |= restore_vfp_context(&aux); ^1da177e4c3f41 Linus Torvalds 2005-04-16 182 #endif ^1da177e4c3f41 Linus Torvalds 2005-04-16 183 ^1da177e4c3f41 Linus Torvalds 2005-04-16 184 return err; ^1da177e4c3f41 Linus Torvalds 2005-04-16 185 } ^1da177e4c3f41 Linus Torvalds 2005-04-16 186 :::::: The code at line 143 was first introduced by commit :::::: ce184a0dee92a0a333236a26478e304dca29a3df ARM: 8687/1: signal: Fix unparseable iwmmxt_sigframe in uc_regspace[] :::::: TO: Dave Martin :::::: CC: Russell King -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki