From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=192.198.163.9 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793703469; b=z09n5Avujm1iyPTPQDfL6lpUP99sx1OuyMhUZXg8GxT6O2vNuWYmYAZ6jXGkwVG9M85z QvY0tA1NPj0irL3L103Jq0rPr1V2W9SYzGhWqY9GtfkHen5EwJv4idbeP1bYjvlBay0j4 evQAKRUin8CfSwM3Ud6C3aN8Yi90URaDsUX8cEA54RX3+vdBeAc3GpXKQ/23NZsq+458g IAhCQZ1Q7wVbfofJkbx5Hv45nE8NTPyJoHgr8OLSPDe6NkaUrvBC384O/DWcBlYSl9U3d iULRJaV8QdwNBpMPBJPrwdaPyiIkbyZgYOv9ACQhq3QI8MJNVZ7YUETghL4NmI3EGWw== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793703469; h=DMARC-Filter:DKIM-Signature:X-CSE-ConnectionGUID:X-CSE-MsgGUID: X-IronPort-AV:X-IronPort-AV:Received:X-CSE-ConnectionGUID: X-CSE-MsgGUID:X-ExtLoop1:X-IronPort-AV:Received:Received:Date:From:To: Cc:Subject:Message-ID:References:MIME-Version:Content-Type: Content-Disposition:In-Reply-To; bh=DDfICRyidzH2Xd0djapzVszHzRWjlx8ddWZ00UYB6Ac=; b=pTDZ7brKdccwSuPwesNiULw3iDLQcAJNmaUQAibuwg/73B40h1p7ew+Ag1dN7fN2iyUC qXiQz1hPPXqP7gYk6LGdS3LWlIUBrU5H+VplxQ9AIrGPmjAo1rjlk5eEnrEWB3sA7nuOZ PoOPkrM3MP5qVX9VFIb536DLEVjkiP2P8ePvaFRpA3a2ccwwKP1doHdh6kESQH4SPcwRg JtanVssGL2ggIQB9DRvg0sbduyPpDrlp1cNtJakBjpJk3Uh69zkHJdliJWBjWlO47S08M dtYlKjWnrP4c8orXWynI751rCJK63Ovw1qUblReO2s8CEoakO2i6vJVldf34Wizl10A== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=AwykSUyB; arc=none smtp.remote-ip=192.198.163.9 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.9]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 97E55606BF96; Tue, 3 Nov 2026 10:57:48 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 97E55606BF96 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, unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=AwykSUyB DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1793703469; x=1825239469; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=tVqPDu+U/KkDYeLuXRepbX+YYLrWZCTzJZvgZd55h8w=; b=AwykSUyB0WmhNagLmxWxocxAYHapilLHrt9YjIkLfU4MnAqEfZ6e4Qkh bkJjbBbSz9vfyljiXQxDti8JNt5JwUXusBP3ukIer6lfNmuCmvv4p7kI0 ahW+G1QlGD1vygWhPUKyImQKEWvy2mce7KLxbfENn1CueUFAEjVZBDlqL hWgAIod5yToaJ2Nxd5J7M8bfcoxoaqV3m/7r55JRhTECN+vt2+aaAgQyz l9hp6ZdEri268bwowHWNqzaTM3BRLdy74ftcjX1NEBWeN4rpbU3xbBnFy 7LUGFP6/aKJRCOKQT0oJxXfuhD/gpY3u9DKc768Qf4Q3k9rJ4RVxn/xX2 A==; X-CSE-ConnectionGUID: 2liL6YWGToeJ0EUxSs3FrA== X-CSE-MsgGUID: +fvNWychQFSaR4PYab88xw== X-IronPort-AV: E=McAfee;i="6800,10657,11954"; a="2302077" X-IronPort-AV: E=Sophos;i="6.27,193,1787036400"; d="scan'208";a="2302077" Received: from fmviesa011.fm.intel.com ([10.60.135.151]) by fmvoesa103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Nov 2026 02:57:48 -0800 X-CSE-ConnectionGUID: 43AHykudSHympGxlpG29+w== X-CSE-MsgGUID: Fjb47Nx4QzCgkr4Wz5LA+g== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.27,193,1787036400"; d="scan'208";a="8181103" Received: from lkp-server01.sh.intel.com (HELO 0caa9d2d175c) ([10.239.97.150]) by fmviesa011.fm.intel.com with ESMTP; 03 Nov 2026 02:57:46 -0800 Received: from kbuild by 0caa9d2d175c with local (Exim 4.98.2) (envelope-from ) id 1xOCD1-00000000ie0-2XzN; Tue, 03 Nov 2026 10:57:43 +0000 Date: Tue, 3 Nov 2026 18:56:53 +0800 From: kernel test robot To: Nehuen Lian Bova , jikos@kernel.org, bentiss@kernel.org Cc: oe-kbuild-all@lists.linux.dev, linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, Nehuen Lian Bova Subject: Re: [PATCH v2] HID: wacom: replace sprintf calls with safer alternatives Message-ID: <202611031828.iUFgzaYo-lkp@intel.com> References: <20261101054830.291749-1-nehuenlian.kernel@gmail.com> X-Mailing-List: linux-kernel@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: <20261101054830.291749-1-nehuenlian.kernel@gmail.com> Hi Nehuen, kernel test robot noticed the following build warnings: [auto build test WARNING on hid/for-next] [also build test WARNING on linus/master v7.3 next-20261030] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Nehuen-Lian-Bova/HID-wacom-replace-sprintf-calls-with-safer-alternatives/20261101-024830 base: https://git.kernel.org/pub/scm/linux/kernel/git/hid/hid.git for-next patch link: https://lore.kernel.org/r/20261101054830.291749-1-nehuenlian.kernel%40gmail.com patch subject: [PATCH v2] HID: wacom: replace sprintf calls with safer alternatives config: nios2-allmodconfig (https://download.01.org/0day-ci/archive/20261103/202611031828.iUFgzaYo-lkp@intel.com/config) compiler: nios2-linux-gcc (GCC) 11.5.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261103/202611031828.iUFgzaYo-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/202611031828.iUFgzaYo-lkp@intel.com/ All warnings (new ones prefixed by >>): drivers/hid/wacom_sys.c: In function '__wacom_initialize_battery': >> drivers/hid/wacom_sys.c:1842:37: warning: passing argument 2 of 'snprintf' makes integer from pointer without a cast [-Wint-conversion] 1842 | snprintf(battery->bat_name, "wacom_battery_%ld", n); | ^~~~~~~~~~~~~~~~~~~ | | | char * In file included from include/linux/kernel.h:32, from include/linux/random.h:7, from include/linux/nodemask.h:94, from include/linux/numa.h:6, from include/linux/cpumask.h:15, from include/linux/smp.h:13, from include/linux/interrupt_rc.h:18, from include/linux/spinlock.h:60, from include/linux/mmzone.h:8, from include/linux/gfp.h:7, from include/linux/slab.h:17, from include/linux/hid.h:19, from drivers/hid/wacom_wac.h:7, from drivers/hid/wacom_sys.c:6: include/linux/sprintf.h:13:47: note: expected 'size_t' {aka 'unsigned int'} but argument is of type 'char *' 13 | __printf(3, 4) int snprintf(char *buf, size_t size, const char *fmt, ...); | ~~~~~~~^~~~ >> drivers/hid/wacom_sys.c:1842:58: warning: passing argument 3 of 'snprintf' makes pointer from integer without a cast [-Wint-conversion] 1842 | snprintf(battery->bat_name, "wacom_battery_%ld", n); | ^ | | | long unsigned int In file included from include/linux/kernel.h:32, from include/linux/random.h:7, from include/linux/nodemask.h:94, from include/linux/numa.h:6, from include/linux/cpumask.h:15, from include/linux/smp.h:13, from include/linux/interrupt_rc.h:18, from include/linux/spinlock.h:60, from include/linux/mmzone.h:8, from include/linux/gfp.h:7, from include/linux/slab.h:17, from include/linux/hid.h:19, from drivers/hid/wacom_wac.h:7, from drivers/hid/wacom_sys.c:6: include/linux/sprintf.h:13:65: note: expected 'const char *' but argument is of type 'long unsigned int' 13 | __printf(3, 4) int snprintf(char *buf, size_t size, const char *fmt, ...); | ~~~~~~~~~~~~^~~ vim +/snprintf +1842 drivers/hid/wacom_sys.c 1820 1821 static int __wacom_initialize_battery(struct wacom *wacom, 1822 struct wacom_battery *battery) 1823 { 1824 static atomic_t battery_no = ATOMIC_INIT(0); 1825 struct device *dev = &wacom->hdev->dev; 1826 struct power_supply_config psy_cfg = { .drv_data = battery, }; 1827 struct power_supply *ps_bat; 1828 struct power_supply_desc *bat_desc = &battery->bat_desc; 1829 unsigned long n; 1830 int error; 1831 1832 if (!devres_open_group(dev, bat_desc, GFP_KERNEL)) 1833 return -ENOMEM; 1834 1835 battery->wacom = wacom; 1836 1837 n = atomic_inc_return(&battery_no) - 1; 1838 1839 bat_desc->properties = wacom_battery_props; 1840 bat_desc->num_properties = ARRAY_SIZE(wacom_battery_props); 1841 bat_desc->get_property = wacom_battery_get_property; > 1842 snprintf(battery->bat_name, "wacom_battery_%ld", n); 1843 bat_desc->name = battery->bat_name; 1844 bat_desc->type = POWER_SUPPLY_TYPE_BATTERY; 1845 bat_desc->use_for_apm = 0; 1846 1847 ps_bat = devm_power_supply_register(dev, bat_desc, &psy_cfg); 1848 if (IS_ERR(ps_bat)) { 1849 error = PTR_ERR(ps_bat); 1850 goto err; 1851 } 1852 1853 power_supply_powers(ps_bat, &wacom->hdev->dev); 1854 1855 battery->battery = ps_bat; 1856 1857 devres_close_group(dev, bat_desc); 1858 return 0; 1859 1860 err: 1861 devres_release_group(dev, bat_desc); 1862 return error; 1863 } 1864 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki