From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.13]) (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 EEF741C3027; Wed, 6 Aug 2025 09:42:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.13 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754473327; cv=none; b=PqBMqditraHHDL9RJK2cWXIonGZIWD771MGj0Pc58NAY/S1EmZJSYWyEf89BT5fdaqDtgOZW+2dpYYAnVioojd2FBKWKRIW+ddJKe/OhEZmDhmWBowK63IiA23sfpFbx4eTWeP67VfJVzzOx+9l5eriqP8G/2MIT4jeV13fL4uo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754473327; c=relaxed/simple; bh=EP/2nbnxkVQbVU2omhh0DFzLJaZBfDQ/1aC8njt6IuQ=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=bsM7DqMcbF7Kw3gIC0pKoU4XjcxErEMsP9EJgf6bP6qjLPPqT2jCkf5v45jZtcSkJXloCySyfTM1XD7hjWFfwXSG/RodRRruHfpsNyNoEhQpoJsKyEBo3rAiFjsQ9iYmxgmC+rvp7yoSpWAbf2M42D4IDG3dw5cxvTrgvHg0FaE= 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=BcWPGh9A; arc=none smtp.client-ip=198.175.65.13 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="BcWPGh9A" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1754473326; x=1786009326; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=EP/2nbnxkVQbVU2omhh0DFzLJaZBfDQ/1aC8njt6IuQ=; b=BcWPGh9ARFEAeZeavTj65ZAkE0EaijhtDQbjuI1N1Yc3BlcAY8zn9yTR zHluwMNGsHoFbmGzNrKHUytOZXVi2Jz56K49+LJ99jM5ldlhm09N8+jDa SNW3rXXk/jwmNUVkD54fIStuWcBWM32VgzyBmlJ4Fp6ZsKY9LB/9WsSas 7RZ2oVit8K+xnZ7aLOQT3HwZ8nyLF93IqUolJl6T05J2yVw559uH8SN3r VUAs1e6lVxl+rRYJwWFNC3plHNpr7ogn7Ps/mZ6jPdJYtxrj91KRVfl19 /7Zo8PSBYmnxr0ROH99LlQC6K8jz6I1TUvlW5WQDCd9T3boofJSl8ku0p g==; X-CSE-ConnectionGUID: aQZ0uHwrSZmZBB3n5zSgtQ== X-CSE-MsgGUID: f6M9eK/8QQGfxBH4iS/yWA== X-IronPort-AV: E=McAfee;i="6800,10657,11513"; a="67862281" X-IronPort-AV: E=Sophos;i="6.17,268,1747724400"; d="scan'208";a="67862281" Received: from fmviesa004.fm.intel.com ([10.60.135.144]) by orvoesa105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Aug 2025 02:42:05 -0700 X-CSE-ConnectionGUID: wqJnxfUNR3e2Nnv3NYwAZg== X-CSE-MsgGUID: nHxQ1/O0TCac0jLf/m1d5g== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.17,268,1747724400"; d="scan'208";a="170003161" Received: from lkp-server02.sh.intel.com (HELO 4ea60e6ab079) ([10.239.97.151]) by fmviesa004.fm.intel.com with ESMTP; 06 Aug 2025 02:42:02 -0700 Received: from kbuild by 4ea60e6ab079 with local (Exim 4.96) (envelope-from ) id 1ujaed-0001U6-0p; Wed, 06 Aug 2025 09:41:58 +0000 Date: Wed, 6 Aug 2025 17:41:44 +0800 From: kernel test robot To: Yu Kuai , yukuai3@huawei.com, axboe@kernel.dk, akpm@linux-foundation.org, ming.lei@redhat.com, dlemoal@kernel.org, jack@suse.cz Cc: oe-kbuild-all@lists.linux.dev, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, yukuai1@huaweicloud.com, yi.zhang@huawei.com, yangerkun@huawei.com, johnny.chenyi@huawei.com Subject: Re: [PATCH v3 1/2] lib/sbitmap: convert shallow_depth from one word to the whole sbitmap Message-ID: <202508061722.0vTVFHLe-lkp@intel.com> References: <20250805073748.606294-2-yukuai1@huaweicloud.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 In-Reply-To: <20250805073748.606294-2-yukuai1@huaweicloud.com> Hi Yu, kernel test robot noticed the following build errors: [auto build test ERROR on axboe-block/for-next] [also build test ERROR on linus/master v6.16 next-20250806] [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/Yu-Kuai/lib-sbitmap-convert-shallow_depth-from-one-word-to-the-whole-sbitmap/20250806-100430 base: https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git for-next patch link: https://lore.kernel.org/r/20250805073748.606294-2-yukuai1%40huaweicloud.com patch subject: [PATCH v3 1/2] lib/sbitmap: convert shallow_depth from one word to the whole sbitmap config: sparc-randconfig-001-20250806 (https://download.01.org/0day-ci/archive/20250806/202508061722.0vTVFHLe-lkp@intel.com/config) compiler: sparc-linux-gcc (GCC) 11.5.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250806/202508061722.0vTVFHLe-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/202508061722.0vTVFHLe-lkp@intel.com/ All error/warnings (new ones prefixed by >>): In file included from ./arch/sparc/include/generated/asm/div64.h:1, from include/linux/math.h:6, from include/linux/kernel.h:27, from include/linux/cpumask.h:11, from arch/sparc/include/asm/smp_32.h:15, from arch/sparc/include/asm/smp.h:7, from arch/sparc/include/asm/switch_to_32.h:5, from arch/sparc/include/asm/switch_to.h:7, from arch/sparc/include/asm/ptrace.h:120, from arch/sparc/include/asm/thread_info_32.h:19, from arch/sparc/include/asm/thread_info.h:7, from include/linux/thread_info.h:60, from arch/sparc/include/asm/current.h:15, from include/linux/sched.h:12, from lib/sbitmap.c:7: lib/sbitmap.c: In function '__map_depth_with_shallow': include/asm-generic/div64.h:183:35: warning: comparison of distinct pointer types lacks a cast 183 | (void)(((typeof((n)) *)0) == ((uint64_t *)0)); \ | ^~ lib/sbitmap.c:222:20: note: in expansion of macro 'do_div' 222 | reminder = do_div(shallow_word_depth, sb->depth); | ^~~~~~ In file included from arch/sparc/include/asm/bug.h:6, from include/linux/bug.h:5, from include/linux/thread_info.h:13, from arch/sparc/include/asm/current.h:15, from include/linux/sched.h:12, from lib/sbitmap.c:7: >> include/asm-generic/div64.h:195:32: warning: right shift count >= width of type [-Wshift-count-overflow] 195 | } else if (likely(((n) >> 32) == 0)) { \ | ^~ include/linux/compiler.h:76:45: note: in definition of macro 'likely' 76 | # define likely(x) __builtin_expect(!!(x), 1) | ^ lib/sbitmap.c:222:20: note: in expansion of macro 'do_div' 222 | reminder = do_div(shallow_word_depth, sb->depth); | ^~~~~~ In file included from ./arch/sparc/include/generated/asm/div64.h:1, from include/linux/math.h:6, from include/linux/kernel.h:27, from include/linux/cpumask.h:11, from arch/sparc/include/asm/smp_32.h:15, from arch/sparc/include/asm/smp.h:7, from arch/sparc/include/asm/switch_to_32.h:5, from arch/sparc/include/asm/switch_to.h:7, from arch/sparc/include/asm/ptrace.h:120, from arch/sparc/include/asm/thread_info_32.h:19, from arch/sparc/include/asm/thread_info.h:7, from include/linux/thread_info.h:60, from arch/sparc/include/asm/current.h:15, from include/linux/sched.h:12, from lib/sbitmap.c:7: >> include/asm-generic/div64.h:199:36: error: passing argument 1 of '__div64_32' from incompatible pointer type [-Werror=incompatible-pointer-types] 199 | __rem = __div64_32(&(n), __base); \ | ^~~~ | | | unsigned int * lib/sbitmap.c:222:20: note: in expansion of macro 'do_div' 222 | reminder = do_div(shallow_word_depth, sb->depth); | ^~~~~~ include/asm-generic/div64.h:174:38: note: expected 'uint64_t *' {aka 'long long unsigned int *'} but argument is of type 'unsigned int *' 174 | extern uint32_t __div64_32(uint64_t *dividend, uint32_t divisor); | ~~~~~~~~~~^~~~~~~~ cc1: some warnings being treated as errors vim +/__div64_32 +199 include/asm-generic/div64.h ^1da177e4c3f415 Linus Torvalds 2005-04-16 176 ^1da177e4c3f415 Linus Torvalds 2005-04-16 177 /* The unnecessary pointer compare is there ^1da177e4c3f415 Linus Torvalds 2005-04-16 178 * to check for type safety (n must be 64bit) ^1da177e4c3f415 Linus Torvalds 2005-04-16 179 */ ^1da177e4c3f415 Linus Torvalds 2005-04-16 180 # define do_div(n,base) ({ \ ^1da177e4c3f415 Linus Torvalds 2005-04-16 181 uint32_t __base = (base); \ ^1da177e4c3f415 Linus Torvalds 2005-04-16 182 uint32_t __rem; \ ^1da177e4c3f415 Linus Torvalds 2005-04-16 183 (void)(((typeof((n)) *)0) == ((uint64_t *)0)); \ 911918aa7ef6f86 Nicolas Pitre 2015-11-02 184 if (__builtin_constant_p(__base) && \ 911918aa7ef6f86 Nicolas Pitre 2015-11-02 185 is_power_of_2(__base)) { \ 911918aa7ef6f86 Nicolas Pitre 2015-11-02 186 __rem = (n) & (__base - 1); \ 911918aa7ef6f86 Nicolas Pitre 2015-11-02 187 (n) >>= ilog2(__base); \ c747ce4706190ef Geert Uytterhoeven 2021-08-11 188 } else if (__builtin_constant_p(__base) && \ 461a5e51060c93f Nicolas Pitre 2015-10-30 189 __base != 0) { \ 461a5e51060c93f Nicolas Pitre 2015-10-30 190 uint32_t __res_lo, __n_lo = (n); \ 461a5e51060c93f Nicolas Pitre 2015-10-30 191 (n) = __div64_const32(n, __base); \ 461a5e51060c93f Nicolas Pitre 2015-10-30 192 /* the remainder can be computed with 32-bit regs */ \ 461a5e51060c93f Nicolas Pitre 2015-10-30 193 __res_lo = (n); \ 461a5e51060c93f Nicolas Pitre 2015-10-30 194 __rem = __n_lo - __res_lo * __base; \ 911918aa7ef6f86 Nicolas Pitre 2015-11-02 @195 } else if (likely(((n) >> 32) == 0)) { \ ^1da177e4c3f415 Linus Torvalds 2005-04-16 196 __rem = (uint32_t)(n) % __base; \ ^1da177e4c3f415 Linus Torvalds 2005-04-16 197 (n) = (uint32_t)(n) / __base; \ c747ce4706190ef Geert Uytterhoeven 2021-08-11 198 } else { \ ^1da177e4c3f415 Linus Torvalds 2005-04-16 @199 __rem = __div64_32(&(n), __base); \ c747ce4706190ef Geert Uytterhoeven 2021-08-11 200 } \ ^1da177e4c3f415 Linus Torvalds 2005-04-16 201 __rem; \ ^1da177e4c3f415 Linus Torvalds 2005-04-16 202 }) ^1da177e4c3f415 Linus Torvalds 2005-04-16 203 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki