From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.15]) (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 6BC6136C0D3; Fri, 6 Mar 2026 18:35:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.15 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772822142; cv=none; b=fVn57mwPmGAqntvBHBeCJ1YRSpz8lIwH7DjTMoCyf/eri9ByQO/8oRqr7MP19Sox1dzyIm0kUXaOkcyIdHTa3vRM+gPeBF27JCLD6JVJ5JnOWb14EXoWKl+gA7pF2Egc48FmZocfPyes+AtfmSx/9L1v68N/hb3kdqpSWCwA5lY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772822142; c=relaxed/simple; bh=PnOYd++9D/NC6pzAhyfUCqczA9LK0rZ55pi87hLP8wQ=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=o8yRd+Q5W0sACdjf4c63yxpqO0v7OX7bMm6/RzcbRJrn7cgy4Ycvv4V+9ZdRpKetvGrJv8w+4AIZi4iCe9O3zFmkAjP9yA/w4VxL4vXDGeGvd3mIhYDzM74liFun3lmXmm2fN63MjT+uRsJN3aj621o/9zd+D5ytxEG+Uxh1lM8= 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=Ggfg6849; arc=none smtp.client-ip=198.175.65.15 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="Ggfg6849" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1772822139; x=1804358139; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=PnOYd++9D/NC6pzAhyfUCqczA9LK0rZ55pi87hLP8wQ=; b=Ggfg6849QXhjnBbEtfePyeayIWuQEQ3plwvz0XvL/YrNvtajfGjzS2AR uNls+SuhnXZB1cTh4T609ToaErjtZUFuF7eu1BfemVtcPf2IV1Wxxe5Zc Y/W4+2Vx9xKbByn1inIzvs6GI/3sc/EXW2KumZmm2wcJ5I1IyWHWdkK26 jou62H4IXqSIbTGb61xxN2VlFj/G2EzrRaHsdr/sjd7/H3LsaNGksxchO 35TwELjfiZGlr4VKua7ghbKNdEqqDIK5swtMzxNte060SlDLBXadFZsEW V/F7q4H3ZCsazO2VicOrOmeAlp48hM7jQIa6LjP4YTu45Q/L9XgLl97eW g==; X-CSE-ConnectionGUID: dPiciPqpQ+ir2OtxLb41RA== X-CSE-MsgGUID: cT5uaeY+RD6odYMvAAlLEQ== X-IronPort-AV: E=McAfee;i="6800,10657,11721"; a="77537835" X-IronPort-AV: E=Sophos;i="6.23,105,1770624000"; d="scan'208";a="77537835" Received: from fmviesa007.fm.intel.com ([10.60.135.147]) by orvoesa107.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Mar 2026 10:35:38 -0800 X-CSE-ConnectionGUID: ibsvGUyoQ9Offwi88FhFww== X-CSE-MsgGUID: ROHfWkN5Q+OaALsLthe0Ww== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.23,105,1770624000"; d="scan'208";a="216829715" Received: from lkp-server01.sh.intel.com (HELO 058beb05654c) ([10.239.97.150]) by fmviesa007.fm.intel.com with ESMTP; 06 Mar 2026 10:35:35 -0800 Received: from kbuild by 058beb05654c with local (Exim 4.98.2) (envelope-from ) id 1vya1N-000000001EH-0Xnc; Fri, 06 Mar 2026 18:35:33 +0000 Date: Sat, 7 Mar 2026 02:34:59 +0800 From: kernel test robot To: luoqing , axboe@kernel.dk Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 1/2] block: Use struct_size() helper in kmalloc() Message-ID: <202603070226.gVmbTzRU-lkp@intel.com> References: <20260306080056.1262324-1-l1138897701@163.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: <20260306080056.1262324-1-l1138897701@163.com> Hi luoqing, kernel test robot noticed the following build errors: [auto build test ERROR on axboe/for-next] [also build test ERROR on device-mapper-dm/for-next linus/master v7.0-rc2 next-20260306] [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/luoqing/dm-bufio-Use-struct_size-helper-in-kmalloc/20260306-165625 base: https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux.git for-next patch link: https://lore.kernel.org/r/20260306080056.1262324-1-l1138897701%40163.com patch subject: [PATCH 1/2] block: Use struct_size() helper in kmalloc() config: x86_64-allnoconfig (https://download.01.org/0day-ci/archive/20260307/202603070226.gVmbTzRU-lkp@intel.com/config) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260307/202603070226.gVmbTzRU-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/202603070226.gVmbTzRU-lkp@intel.com/ All errors (new ones prefixed by >>): block/bio.c:660:34: error: no member named 'bio_vec' in 'struct bio'; did you mean 'bi_io_vec'? 660 | return kmalloc(struct_size(bio, bio_vec, nr_vecs), gfp_mask); | ^~~~~~~ | bi_io_vec include/linux/overflow.h:436:37: note: expanded from macro 'struct_size' 436 | sizeof(*(p)) + flex_array_size(p, member, count), \ | ^ include/linux/overflow.h:420:26: note: expanded from macro 'flex_array_size' 420 | (count) * sizeof(*(p)->member) + __must_be_array((p)->member), \ | ^ include/linux/slab.h:956:52: note: expanded from macro 'kmalloc' 956 | #define kmalloc(...) alloc_hooks(kmalloc_noprof(__VA_ARGS__)) | ^ include/linux/alloc_tag.h:265:31: note: expanded from macro 'alloc_hooks' 265 | alloc_hooks_tag(&_alloc_tag, _do_alloc); \ | ^ include/linux/alloc_tag.h:251:9: note: expanded from macro 'alloc_hooks_tag' 251 | typeof(_do_alloc) _res; \ | ^ include/linux/blk_types.h:236:19: note: 'bi_io_vec' declared here 236 | struct bio_vec *bi_io_vec; | ^ block/bio.c:660:34: error: no member named 'bio_vec' in 'struct bio'; did you mean 'bi_io_vec'? 660 | return kmalloc(struct_size(bio, bio_vec, nr_vecs), gfp_mask); | ^~~~~~~ | bi_io_vec include/linux/overflow.h:436:37: note: expanded from macro 'struct_size' 436 | sizeof(*(p)) + flex_array_size(p, member, count), \ | ^ include/linux/overflow.h:420:57: note: expanded from macro 'flex_array_size' 420 | (count) * sizeof(*(p)->member) + __must_be_array((p)->member), \ | ^ include/linux/compiler.h:208:64: note: expanded from macro '__must_be_array' 208 | #define __must_be_array(a) __BUILD_BUG_ON_ZERO_MSG(!__is_array(a), \ | ^ note: (skipping 3 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/linux/slab.h:956:52: note: expanded from macro 'kmalloc' 956 | #define kmalloc(...) alloc_hooks(kmalloc_noprof(__VA_ARGS__)) | ^ include/linux/alloc_tag.h:265:31: note: expanded from macro 'alloc_hooks' 265 | alloc_hooks_tag(&_alloc_tag, _do_alloc); \ | ^ include/linux/alloc_tag.h:251:9: note: expanded from macro 'alloc_hooks_tag' 251 | typeof(_do_alloc) _res; \ | ^ include/linux/blk_types.h:236:19: note: 'bi_io_vec' declared here 236 | struct bio_vec *bi_io_vec; | ^ block/bio.c:660:34: error: no member named 'bio_vec' in 'struct bio'; did you mean 'bi_io_vec'? 660 | return kmalloc(struct_size(bio, bio_vec, nr_vecs), gfp_mask); | ^~~~~~~ | bi_io_vec include/linux/overflow.h:436:37: note: expanded from macro 'struct_size' 436 | sizeof(*(p)) + flex_array_size(p, member, count), \ | ^ include/linux/overflow.h:420:57: note: expanded from macro 'flex_array_size' 420 | (count) * sizeof(*(p)->member) + __must_be_array((p)->member), \ | ^ include/linux/compiler.h:208:64: note: expanded from macro '__must_be_array' 208 | #define __must_be_array(a) __BUILD_BUG_ON_ZERO_MSG(!__is_array(a), \ | ^ note: (skipping 3 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/linux/slab.h:956:52: note: expanded from macro 'kmalloc' 956 | #define kmalloc(...) alloc_hooks(kmalloc_noprof(__VA_ARGS__)) | ^ include/linux/alloc_tag.h:265:31: note: expanded from macro 'alloc_hooks' 265 | alloc_hooks_tag(&_alloc_tag, _do_alloc); \ | ^ include/linux/alloc_tag.h:251:9: note: expanded from macro 'alloc_hooks_tag' 251 | typeof(_do_alloc) _res; \ | ^ include/linux/blk_types.h:236:19: note: 'bi_io_vec' declared here 236 | struct bio_vec *bi_io_vec; | ^ >> block/bio.c:660:17: error: static assertion failed due to requirement '!(!(!__builtin_types_compatible_p(struct bio_vec *, struct bio_vec *)))': must be array 660 | return kmalloc(struct_size(bio, bio_vec, nr_vecs), gfp_mask); | ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/overflow.h:436:18: note: expanded from macro 'struct_size' 436 | sizeof(*(p)) + flex_array_size(p, member, count), \ | ^ include/linux/overflow.h:420:36: note: expanded from macro 'flex_array_size' 420 | (count) * sizeof(*(p)->member) + __must_be_array((p)->member), \ | ^ include/linux/compiler.h:208:28: note: expanded from macro '__must_be_array' 208 | #define __must_be_array(a) __BUILD_BUG_ON_ZERO_MSG(!__is_array(a), \ | ^ note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/linux/slab.h:956:52: note: expanded from macro 'kmalloc' 956 | #define kmalloc(...) alloc_hooks(kmalloc_noprof(__VA_ARGS__)) | ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~ include/linux/alloc_tag.h:265:31: note: expanded from macro 'alloc_hooks' 265 | alloc_hooks_tag(&_alloc_tag, _do_alloc); \ | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~ include/linux/alloc_tag.h:251:9: note: expanded from macro 'alloc_hooks_tag' 251 | typeof(_do_alloc) _res; \ | ^~~~~~~~~ block/bio.c:660:34: error: no member named 'bio_vec' in 'struct bio'; did you mean 'bi_io_vec'? 660 | return kmalloc(struct_size(bio, bio_vec, nr_vecs), gfp_mask); | ^~~~~~~ | bi_io_vec include/linux/overflow.h:436:37: note: expanded from macro 'struct_size' 436 | sizeof(*(p)) + flex_array_size(p, member, count), \ | ^ include/linux/overflow.h:421:32: note: expanded from macro 'flex_array_size' 421 | size_mul(count, sizeof(*(p)->member) + __must_be_array((p)->member))) | ^ include/linux/slab.h:956:52: note: expanded from macro 'kmalloc' 956 | #define kmalloc(...) alloc_hooks(kmalloc_noprof(__VA_ARGS__)) | ^ include/linux/alloc_tag.h:265:31: note: expanded from macro 'alloc_hooks' 265 | alloc_hooks_tag(&_alloc_tag, _do_alloc); \ | ^ include/linux/alloc_tag.h:251:9: note: expanded from macro 'alloc_hooks_tag' 251 | typeof(_do_alloc) _res; \ | ^ include/linux/blk_types.h:236:19: note: 'bi_io_vec' declared here 236 | struct bio_vec *bi_io_vec; | ^ block/bio.c:660:34: error: no member named 'bio_vec' in 'struct bio'; did you mean 'bi_io_vec'? 660 | return kmalloc(struct_size(bio, bio_vec, nr_vecs), gfp_mask); | ^~~~~~~ | bi_io_vec include/linux/overflow.h:436:37: note: expanded from macro 'struct_size' 436 | sizeof(*(p)) + flex_array_size(p, member, count), \ | ^ include/linux/overflow.h:421:63: note: expanded from macro 'flex_array_size' 421 | size_mul(count, sizeof(*(p)->member) + __must_be_array((p)->member))) | ^ include/linux/compiler.h:208:64: note: expanded from macro '__must_be_array' 208 | #define __must_be_array(a) __BUILD_BUG_ON_ZERO_MSG(!__is_array(a), \ | ^ note: (skipping 3 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/linux/slab.h:956:52: note: expanded from macro 'kmalloc' 956 | #define kmalloc(...) alloc_hooks(kmalloc_noprof(__VA_ARGS__)) | ^ include/linux/alloc_tag.h:265:31: note: expanded from macro 'alloc_hooks' 265 | alloc_hooks_tag(&_alloc_tag, _do_alloc); \ | ^ include/linux/alloc_tag.h:251:9: note: expanded from macro 'alloc_hooks_tag' 251 | typeof(_do_alloc) _res; \ | ^ include/linux/blk_types.h:236:19: note: 'bi_io_vec' declared here 236 | struct bio_vec *bi_io_vec; | ^ block/bio.c:660:34: error: no member named 'bio_vec' in 'struct bio'; did you mean 'bi_io_vec'? 660 | return kmalloc(struct_size(bio, bio_vec, nr_vecs), gfp_mask); | ^~~~~~~ | bi_io_vec include/linux/overflow.h:436:37: note: expanded from macro 'struct_size' 436 | sizeof(*(p)) + flex_array_size(p, member, count), \ | ^ include/linux/overflow.h:421:63: note: expanded from macro 'flex_array_size' 421 | size_mul(count, sizeof(*(p)->member) + __must_be_array((p)->member))) | ^ include/linux/compiler.h:208:64: note: expanded from macro '__must_be_array' 208 | #define __must_be_array(a) __BUILD_BUG_ON_ZERO_MSG(!__is_array(a), \ | ^ note: (skipping 3 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/linux/slab.h:956:52: note: expanded from macro 'kmalloc' 956 | #define kmalloc(...) alloc_hooks(kmalloc_noprof(__VA_ARGS__)) | ^ include/linux/alloc_tag.h:265:31: note: expanded from macro 'alloc_hooks' 265 | alloc_hooks_tag(&_alloc_tag, _do_alloc); \ | ^ include/linux/alloc_tag.h:251:9: note: expanded from macro 'alloc_hooks_tag' 251 | typeof(_do_alloc) _res; \ | ^ include/linux/blk_types.h:236:19: note: 'bi_io_vec' declared here 236 | struct bio_vec *bi_io_vec; | ^ >> block/bio.c:660:17: error: static assertion failed due to requirement '!(!(!__builtin_types_compatible_p(struct bio_vec *, struct bio_vec *)))': must be array 660 | return kmalloc(struct_size(bio, bio_vec, nr_vecs), gfp_mask); | ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/overflow.h:436:18: note: expanded from macro 'struct_size' 436 | sizeof(*(p)) + flex_array_size(p, member, count), \ | ^ include/linux/overflow.h:421:42: note: expanded from macro 'flex_array_size' 421 | size_mul(count, sizeof(*(p)->member) + __must_be_array((p)->member))) | ^ include/linux/compiler.h:208:28: note: expanded from macro '__must_be_array' 208 | #define __must_be_array(a) __BUILD_BUG_ON_ZERO_MSG(!__is_array(a), \ | ^ note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/linux/slab.h:956:52: note: expanded from macro 'kmalloc' 956 | #define kmalloc(...) alloc_hooks(kmalloc_noprof(__VA_ARGS__)) | ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~ include/linux/alloc_tag.h:265:31: note: expanded from macro 'alloc_hooks' 265 | alloc_hooks_tag(&_alloc_tag, _do_alloc); \ | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~ include/linux/alloc_tag.h:251:9: note: expanded from macro 'alloc_hooks_tag' 251 | typeof(_do_alloc) _res; \ | ^~~~~~~~~ block/bio.c:660:34: error: no member named 'bio_vec' in 'struct bio'; did you mean 'bi_io_vec'? 660 | return kmalloc(struct_size(bio, bio_vec, nr_vecs), gfp_mask); | ^~~~~~~ | bi_io_vec include/linux/overflow.h:437:45: note: expanded from macro 'struct_size' 437 | size_add(sizeof(*(p)), flex_array_size(p, member, count))) | ^ include/linux/overflow.h:420:26: note: expanded from macro 'flex_array_size' 420 | (count) * sizeof(*(p)->member) + __must_be_array((p)->member), \ | ^ include/linux/slab.h:956:52: note: expanded from macro 'kmalloc' 956 | #define kmalloc(...) alloc_hooks(kmalloc_noprof(__VA_ARGS__)) | ^ include/linux/alloc_tag.h:265:31: note: expanded from macro 'alloc_hooks' 265 | alloc_hooks_tag(&_alloc_tag, _do_alloc); \ | ^ include/linux/alloc_tag.h:251:9: note: expanded from macro 'alloc_hooks_tag' 251 | typeof(_do_alloc) _res; \ | ^ include/linux/blk_types.h:236:19: note: 'bi_io_vec' declared here 236 | struct bio_vec *bi_io_vec; | ^ block/bio.c:660:34: error: no member named 'bio_vec' in 'struct bio'; did you mean 'bi_io_vec'? 660 | return kmalloc(struct_size(bio, bio_vec, nr_vecs), gfp_mask); | ^~~~~~~ | bi_io_vec include/linux/overflow.h:437:45: note: expanded from macro 'struct_size' 437 | size_add(sizeof(*(p)), flex_array_size(p, member, count))) | ^ include/linux/overflow.h:420:57: note: expanded from macro 'flex_array_size' 420 | (count) * sizeof(*(p)->member) + __must_be_array((p)->member), \ | ^ include/linux/compiler.h:208:64: note: expanded from macro '__must_be_array' 208 | #define __must_be_array(a) __BUILD_BUG_ON_ZERO_MSG(!__is_array(a), \ | ^ note: (skipping 3 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/linux/slab.h:956:52: note: expanded from macro 'kmalloc' 956 | #define kmalloc(...) alloc_hooks(kmalloc_noprof(__VA_ARGS__)) | ^ include/linux/alloc_tag.h:265:31: note: expanded from macro 'alloc_hooks' 265 | alloc_hooks_tag(&_alloc_tag, _do_alloc); \ | ^ include/linux/alloc_tag.h:251:9: note: expanded from macro 'alloc_hooks_tag' 251 | typeof(_do_alloc) _res; \ | ^ include/linux/blk_types.h:236:19: note: 'bi_io_vec' declared here 236 | struct bio_vec *bi_io_vec; | ^ block/bio.c:660:34: error: no member named 'bio_vec' in 'struct bio'; did you mean 'bi_io_vec'? 660 | return kmalloc(struct_size(bio, bio_vec, nr_vecs), gfp_mask); | ^~~~~~~ | bi_io_vec include/linux/overflow.h:437:45: note: expanded from macro 'struct_size' 437 | size_add(sizeof(*(p)), flex_array_size(p, member, count))) | ^ include/linux/overflow.h:420:57: note: expanded from macro 'flex_array_size' 420 | (count) * sizeof(*(p)->member) + __must_be_array((p)->member), \ | ^ include/linux/compiler.h:208:64: note: expanded from macro '__must_be_array' 208 | #define __must_be_array(a) __BUILD_BUG_ON_ZERO_MSG(!__is_array(a), \ | ^ note: (skipping 3 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/linux/slab.h:956:52: note: expanded from macro 'kmalloc' 956 | #define kmalloc(...) alloc_hooks(kmalloc_noprof(__VA_ARGS__)) | ^ include/linux/alloc_tag.h:265:31: note: expanded from macro 'alloc_hooks' 265 | alloc_hooks_tag(&_alloc_tag, _do_alloc); \ | ^ include/linux/alloc_tag.h:251:9: note: expanded from macro 'alloc_hooks_tag' 251 | typeof(_do_alloc) _res; \ | ^ include/linux/blk_types.h:236:19: note: 'bi_io_vec' declared here 236 | struct bio_vec *bi_io_vec; | ^ >> block/bio.c:660:17: error: static assertion failed due to requirement '!(!(!__builtin_types_compatible_p(struct bio_vec *, struct bio_vec *)))': must be array 660 | return kmalloc(struct_size(bio, bio_vec, nr_vecs), gfp_mask); | ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/overflow.h:437:26: note: expanded from macro 'struct_size' 437 | size_add(sizeof(*(p)), flex_array_size(p, member, count))) | ^ include/linux/overflow.h:420:36: note: expanded from macro 'flex_array_size' 420 | (count) * sizeof(*(p)->member) + __must_be_array((p)->member), \ | ^ include/linux/compiler.h:208:28: note: expanded from macro '__must_be_array' 208 | #define __must_be_array(a) __BUILD_BUG_ON_ZERO_MSG(!__is_array(a), \ | ^ note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/linux/slab.h:956:52: note: expanded from macro 'kmalloc' 956 | #define kmalloc(...) alloc_hooks(kmalloc_noprof(__VA_ARGS__)) | ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~ include/linux/alloc_tag.h:265:31: note: expanded from macro 'alloc_hooks' 265 | alloc_hooks_tag(&_alloc_tag, _do_alloc); \ | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~ include/linux/alloc_tag.h:251:9: note: expanded from macro 'alloc_hooks_tag' 251 | typeof(_do_alloc) _res; \ | ^~~~~~~~~ block/bio.c:660:34: error: no member named 'bio_vec' in 'struct bio'; did you mean 'bi_io_vec'? 660 | return kmalloc(struct_size(bio, bio_vec, nr_vecs), gfp_mask); | ^~~~~~~ | bi_io_vec include/linux/overflow.h:437:45: note: expanded from macro 'struct_size' 437 | size_add(sizeof(*(p)), flex_array_size(p, member, count))) | ^ include/linux/overflow.h:421:32: note: expanded from macro 'flex_array_size' 421 | size_mul(count, sizeof(*(p)->member) + __must_be_array((p)->member))) | ^ include/linux/slab.h:956:52: note: expanded from macro 'kmalloc' 956 | #define kmalloc(...) alloc_hooks(kmalloc_noprof(__VA_ARGS__)) | ^ include/linux/alloc_tag.h:265:31: note: expanded from macro 'alloc_hooks' 265 | alloc_hooks_tag(&_alloc_tag, _do_alloc); \ | ^ include/linux/alloc_tag.h:251:9: note: expanded from macro 'alloc_hooks_tag' 251 | typeof(_do_alloc) _res; \ | ^ include/linux/blk_types.h:236:19: note: 'bi_io_vec' declared here 236 | struct bio_vec *bi_io_vec; | ^ block/bio.c:660:34: error: no member named 'bio_vec' in 'struct bio'; did you mean 'bi_io_vec'? 660 | return kmalloc(struct_size(bio, bio_vec, nr_vecs), gfp_mask); | ^~~~~~~ | bi_io_vec include/linux/overflow.h:437:45: note: expanded from macro 'struct_size' 437 | size_add(sizeof(*(p)), flex_array_size(p, member, count))) | ^ include/linux/overflow.h:421:63: note: expanded from macro 'flex_array_size' 421 | size_mul(count, sizeof(*(p)->member) + __must_be_array((p)->member))) | ^ include/linux/compiler.h:208:64: note: expanded from macro '__must_be_array' 208 | #define __must_be_array(a) __BUILD_BUG_ON_ZERO_MSG(!__is_array(a), \ | ^ note: (skipping 3 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/linux/slab.h:956:52: note: expanded from macro 'kmalloc' 956 | #define kmalloc(...) alloc_hooks(kmalloc_noprof(__VA_ARGS__)) | ^ include/linux/alloc_tag.h:265:31: note: expanded from macro 'alloc_hooks' 265 | alloc_hooks_tag(&_alloc_tag, _do_alloc); \ | ^ include/linux/alloc_tag.h:251:9: note: expanded from macro 'alloc_hooks_tag' 251 | typeof(_do_alloc) _res; \ | ^ include/linux/blk_types.h:236:19: note: 'bi_io_vec' declared here 236 | struct bio_vec *bi_io_vec; | ^ block/bio.c:660:34: error: no member named 'bio_vec' in 'struct bio'; did you mean 'bi_io_vec'? 660 | return kmalloc(struct_size(bio, bio_vec, nr_vecs), gfp_mask); | ^~~~~~~ | bi_io_vec include/linux/overflow.h:437:45: note: expanded from macro 'struct_size' 437 | size_add(sizeof(*(p)), flex_array_size(p, member, count))) | ^ include/linux/overflow.h:421:63: note: expanded from macro 'flex_array_size' 421 | size_mul(count, sizeof(*(p)->member) + __must_be_array((p)->member))) | ^ include/linux/compiler.h:208:64: note: expanded from macro '__must_be_array' 208 | #define __must_be_array(a) __BUILD_BUG_ON_ZERO_MSG(!__is_array(a), \ | ^ note: (skipping 3 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/linux/slab.h:956:52: note: expanded from macro 'kmalloc' 956 | #define kmalloc(...) alloc_hooks(kmalloc_noprof(__VA_ARGS__)) | ^ include/linux/alloc_tag.h:265:31: note: expanded from macro 'alloc_hooks' 265 | alloc_hooks_tag(&_alloc_tag, _do_alloc); \ | ^ include/linux/alloc_tag.h:251:9: note: expanded from macro 'alloc_hooks_tag' 251 | typeof(_do_alloc) _res; \ | ^ include/linux/blk_types.h:236:19: note: 'bi_io_vec' declared here 236 | struct bio_vec *bi_io_vec; | ^ >> block/bio.c:660:17: error: static assertion failed due to requirement '!(!(!__builtin_types_compatible_p(struct bio_vec *, struct bio_vec *)))': must be array 660 | return kmalloc(struct_size(bio, bio_vec, nr_vecs), gfp_mask); | ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/overflow.h:437:26: note: expanded from macro 'struct_size' 437 | size_add(sizeof(*(p)), flex_array_size(p, member, count))) | ^ include/linux/overflow.h:421:42: note: expanded from macro 'flex_array_size' 421 | size_mul(count, sizeof(*(p)->member) + __must_be_array((p)->member))) | ^ include/linux/compiler.h:208:28: note: expanded from macro '__must_be_array' 208 | #define __must_be_array(a) __BUILD_BUG_ON_ZERO_MSG(!__is_array(a), \ | ^ note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/linux/slab.h:956:52: note: expanded from macro 'kmalloc' 956 | #define kmalloc(...) alloc_hooks(kmalloc_noprof(__VA_ARGS__)) | ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~ include/linux/alloc_tag.h:265:31: note: expanded from macro 'alloc_hooks' 265 | alloc_hooks_tag(&_alloc_tag, _do_alloc); \ | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~ include/linux/alloc_tag.h:251:9: note: expanded from macro 'alloc_hooks_tag' 251 | typeof(_do_alloc) _res; \ | ^~~~~~~~~ block/bio.c:660:34: error: no member named 'bio_vec' in 'struct bio'; did you mean 'bi_io_vec'? 660 | return kmalloc(struct_size(bio, bio_vec, nr_vecs), gfp_mask); | ^~~~~~~ | bi_io_vec include/linux/overflow.h:436:37: note: expanded from macro 'struct_size' 436 | sizeof(*(p)) + flex_array_size(p, member, count), \ | ^ include/linux/overflow.h:420:26: note: expanded from macro 'flex_array_size' 420 | (count) * sizeof(*(p)->member) + __must_be_array((p)->member), \ | ^ include/linux/slab.h:956:52: note: expanded from macro 'kmalloc' 956 | #define kmalloc(...) alloc_hooks(kmalloc_noprof(__VA_ARGS__)) | ^ include/linux/alloc_tag.h:265:31: note: expanded from macro 'alloc_hooks' 265 | alloc_hooks_tag(&_alloc_tag, _do_alloc); \ | ^ include/linux/alloc_tag.h:255:10: note: expanded from macro 'alloc_hooks_tag' 255 | _res = _do_alloc; \ | ^ include/linux/blk_types.h:236:19: note: 'bi_io_vec' declared here 236 | struct bio_vec *bi_io_vec; | ^ block/bio.c:660:34: error: no member named 'bio_vec' in 'struct bio'; did you mean 'bi_io_vec'? 660 | return kmalloc(struct_size(bio, bio_vec, nr_vecs), gfp_mask); | ^~~~~~~ | bi_io_vec include/linux/overflow.h:436:37: note: expanded from macro 'struct_size' 436 | sizeof(*(p)) + flex_array_size(p, member, count), \ | ^ include/linux/overflow.h:420:57: note: expanded from macro 'flex_array_size' 420 | (count) * sizeof(*(p)->member) + __must_be_array((p)->member), \ | ^ include/linux/compiler.h:208:64: note: expanded from macro '__must_be_array' 208 | #define __must_be_array(a) __BUILD_BUG_ON_ZERO_MSG(!__is_array(a), \ | ^ note: (skipping 3 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/linux/slab.h:956:52: note: expanded from macro 'kmalloc' 956 | #define kmalloc(...) alloc_hooks(kmalloc_noprof(__VA_ARGS__)) | ^ include/linux/alloc_tag.h:265:31: note: expanded from macro 'alloc_hooks' 265 | alloc_hooks_tag(&_alloc_tag, _do_alloc); \ | ^ include/linux/alloc_tag.h:255:10: note: expanded from macro 'alloc_hooks_tag' 255 | _res = _do_alloc; \ | ^ include/linux/blk_types.h:236:19: note: 'bi_io_vec' declared here 236 | struct bio_vec *bi_io_vec; | ^ block/bio.c:660:34: error: no member named 'bio_vec' in 'struct bio'; did you mean 'bi_io_vec'? 660 | return kmalloc(struct_size(bio, bio_vec, nr_vecs), gfp_mask); | ^~~~~~~ | bi_io_vec include/linux/overflow.h:436:37: note: expanded from macro 'struct_size' 436 | sizeof(*(p)) + flex_array_size(p, member, count), \ | ^ include/linux/overflow.h:420:57: note: expanded from macro 'flex_array_size' 420 | (count) * sizeof(*(p)->member) + __must_be_array((p)->member), \ | ^ include/linux/compiler.h:208:64: note: expanded from macro '__must_be_array' 208 | #define __must_be_array(a) __BUILD_BUG_ON_ZERO_MSG(!__is_array(a), \ | ^ note: (skipping 3 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/linux/slab.h:956:52: note: expanded from macro 'kmalloc' 956 | #define kmalloc(...) alloc_hooks(kmalloc_noprof(__VA_ARGS__)) | ^ include/linux/alloc_tag.h:265:31: note: expanded from macro 'alloc_hooks' 265 | alloc_hooks_tag(&_alloc_tag, _do_alloc); \ | ^ include/linux/alloc_tag.h:255:10: note: expanded from macro 'alloc_hooks_tag' 255 | _res = _do_alloc; \ | ^ include/linux/blk_types.h:236:19: note: 'bi_io_vec' declared here 236 | struct bio_vec *bi_io_vec; | ^ fatal error: too many errors emitted, stopping now [-ferror-limit=] 20 errors generated. vim +660 block/bio.c 637 638 /** 639 * bio_kmalloc - kmalloc a bio 640 * @nr_vecs: number of bio_vecs to allocate 641 * @gfp_mask: the GFP_* mask given to the slab allocator 642 * 643 * Use kmalloc to allocate a bio (including bvecs). The bio must be initialized 644 * using bio_init() before use. To free a bio returned from this function use 645 * kfree() after calling bio_uninit(). A bio returned from this function can 646 * be reused by calling bio_uninit() before calling bio_init() again. 647 * 648 * Note that unlike bio_alloc() or bio_alloc_bioset() allocations from this 649 * function are not backed by a mempool can fail. Do not use this function 650 * for allocations in the file system I/O path. 651 * 652 * Returns: Pointer to new bio on success, NULL on failure. 653 */ 654 struct bio *bio_kmalloc(unsigned short nr_vecs, gfp_t gfp_mask) 655 { 656 struct bio *bio; 657 658 if (nr_vecs > BIO_MAX_INLINE_VECS) 659 return NULL; > 660 return kmalloc(struct_size(bio, bio_vec, nr_vecs), gfp_mask); 661 } 662 EXPORT_SYMBOL(bio_kmalloc); 663 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki