From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.9]) (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 8E2B81DAC90 for ; Mon, 14 Oct 2024 23:53:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.9 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728950003; cv=none; b=KIxiSwwzS+Wk6jPvGj3wjRzH6FF6ANdKoCLFdC2KZZ+u0Bjea3eJpn+EmFr3mDAan3oe71rU3n+U7HqfCUmUbXVUrPf9tFRivvK8QMN7d8ZBIzG6+OEX3cGMWfDLCWSPVWGwXLrvWCr/lznUufwqLaAb6aSDo7blD2gKwRgXdnw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728950003; c=relaxed/simple; bh=ooDDEFX8S6g3joVM9vzvha0etGZHvlyZXHSDj/hz2JY=; h=Date:From:To:Cc:Subject:Message-ID:MIME-Version:Content-Type: Content-Disposition; b=uhkGIQ5178tgQcU9z9yZyyit3Yy0ewGGzXpK1nRTHVTrI6dh151DalcGz0a7JqRu8Vw2EuuAtfTaob9aSx5s8SiU83H/c8OGrM1Cd87kYrsd4L1bLy9u86qDaLz5sZq8J2Hw/K0CAosRwgJht9cOowTmZIhtaqelTZeJ/ys+dI4= 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=m5wu+2xl; arc=none smtp.client-ip=192.198.163.9 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="m5wu+2xl" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1728950001; x=1760486001; h=date:from:to:cc:subject:message-id:mime-version; bh=ooDDEFX8S6g3joVM9vzvha0etGZHvlyZXHSDj/hz2JY=; b=m5wu+2xluhZUga5YK1f34jz1aguv7Wmoa1fBH5t2HFaG1CnROt8jGAi1 w9RheQJoCxuudO1SZRbyrktvhfGCp6tHY/3HSnPHVGChq0st3fzbR1obC sDRQrILawXEc90AHXxx2M4RNJ431TQFXCu+hwGDI7WoW+VPF4XPBiDbS+ 9awCMLp3qjUfxPWbqxIryuGQpC4DLErK07SoslAE73pHNp9t7IB/QCTsx 8SBwqRkeBJfnyUI05Rke99OCEil0JnUbmu4Z+3JEDpNDLmWm8n1n56Epb 4y0Y0jL3bisjua3fqto+7L7J/GsgvSiz+WjpsE180/Xcduzi2NVxBesoi Q==; X-CSE-ConnectionGUID: V3HEF2a8SmO1sakp5kGOFQ== X-CSE-MsgGUID: E7kFwj2JQ/6mQj7CDoaS5g== X-IronPort-AV: E=McAfee;i="6700,10204,11225"; a="38956042" X-IronPort-AV: E=Sophos;i="6.11,203,1725346800"; d="scan'208";a="38956042" Received: from fmviesa004.fm.intel.com ([10.60.135.144]) by fmvoesa103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 14 Oct 2024 16:53:14 -0700 X-CSE-ConnectionGUID: yMIZn+L5Q6++45OiJ7596g== X-CSE-MsgGUID: 5dGVirN+SxCmkBFFlWtHgA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.11,203,1725346800"; d="scan'208";a="82341048" Received: from lkp-server01.sh.intel.com (HELO a48cf1aa22e8) ([10.239.97.150]) by fmviesa004.fm.intel.com with ESMTP; 14 Oct 2024 16:53:14 -0700 Received: from kbuild by a48cf1aa22e8 with local (Exim 4.96) (envelope-from ) id 1t0UsB-000HL1-1p; Mon, 14 Oct 2024 23:53:11 +0000 Date: Tue, 15 Oct 2024 07:52:50 +0800 From: kernel test robot To: Tao Zhang Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org, Suzuki K Poulose Subject: drivers/hwtracing/coresight/coresight-tpdm.c:288 dsb_mode_store() warn: unsigned 'val' is never less than zero. Message-ID: <202410150702.UaZ7kvet-lkp@intel.com> 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 tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: eca631b8fe808748d7585059c4307005ca5c5820 commit: 018e43ad1eeefbb8797e4c933953c50c09e3f4f6 coresight-tpdm: Add node to set dsb programming mode date: 11 months ago config: arm-randconfig-r073-20241015 (https://download.01.org/0day-ci/archive/20241015/202410150702.UaZ7kvet-lkp@intel.com/config) compiler: arm-linux-gnueabi-gcc (GCC) 14.1.0 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/202410150702.UaZ7kvet-lkp@intel.com/ smatch warnings: drivers/hwtracing/coresight/coresight-tpdm.c:288 dsb_mode_store() warn: unsigned 'val' is never less than zero. vim +/val +288 drivers/hwtracing/coresight/coresight-tpdm.c 279 280 static ssize_t dsb_mode_store(struct device *dev, 281 struct device_attribute *attr, 282 const char *buf, 283 size_t size) 284 { 285 struct tpdm_drvdata *drvdata = dev_get_drvdata(dev->parent); 286 unsigned long val; 287 > 288 if ((kstrtoul(buf, 0, &val)) || (val < 0) || 289 (val & ~TPDM_DSB_MODE_MASK)) 290 return -EINVAL; 291 292 spin_lock(&drvdata->spinlock); 293 drvdata->dsb->mode = val & TPDM_DSB_MODE_MASK; 294 spin_unlock(&drvdata->spinlock); 295 return size; 296 } 297 static DEVICE_ATTR_RW(dsb_mode); 298 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki