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X-CSE-ConnectionGUID: cXmV9tRxShaKPTMO05KQRA== X-CSE-MsgGUID: r+KJaBK9QOy3gffWNZaKjQ== X-IronPort-AV: E=McAfee;i="6800,10657,11650"; a="68285681" X-IronPort-AV: E=Sophos;i="6.21,169,1763452800"; d="scan'208";a="68285681" Received: from fmviesa008.fm.intel.com ([10.60.135.148]) by orvoesa109.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Dec 2025 15:37:50 -0800 X-CSE-ConnectionGUID: /7rmrmvcQjykLlDXEdLJnQ== X-CSE-MsgGUID: KqFvZ5MLSmaJFSgmmnDnWA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,169,1763452800"; d="scan'208";a="199945998" Received: from lkp-server02.sh.intel.com (HELO dd3453e2b682) ([10.239.97.151]) by fmviesa008.fm.intel.com with ESMTP; 22 Dec 2025 15:37:43 -0800 Received: from kbuild by dd3453e2b682 with local (Exim 4.98.2) (envelope-from ) id 1vXpTB-000000001Dx-40xf; Mon, 22 Dec 2025 23:37:41 +0000 Date: Tue, 23 Dec 2025 07:36:46 +0800 From: kernel test robot To: Harry Yoo , akpm@linux-foundation.org, vbabka@suse.cz Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, andreyknvl@gmail.com, cl@gentwo.org, dvyukov@google.com, glider@google.com, hannes@cmpxchg.org, linux-mm@kvack.org, mhocko@kernel.org, muchun.song@linux.dev, rientjes@google.com, roman.gushchin@linux.dev, ryabinin.a.a@gmail.com, shakeel.butt@linux.dev, surenb@google.com, vincenzo.frascino@arm.com, yeoreum.yun@arm.com, harry.yoo@oracle.com, tytso@mit.edu, adilger.kernel@dilger.ca, linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org, cgroups@vger.kernel.org, hao.li@linux.dev Subject: Re: [PATCH V4 4/8] mm/slab: abstract slabobj_ext access via new slab_obj_ext() helper Message-ID: <202512230850.bBE4pAZ5-lkp@intel.com> References: <20251222110843.980347-5-harry.yoo@oracle.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20251222110843.980347-5-harry.yoo@oracle.com> X-Stat-Signature: x3a97kbzbnfz3qr6ch6yd318jfukqjcp X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: C9BAF160006 X-Rspam-User: X-HE-Tag: 1766446672-53811 X-HE-Meta: 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 Jx1AH4Yd x4QDkluzNMtl/JfyQOVAiiB3MTLisYWzPVNLmyawx/ht7Apv8xnshuzpOgBW2vBxnb5qz5rsViKw0P9ondf+N8jzuMC4o7/cOBOCDWidB6pfH9zF0/AUQVajO5dzcYIzk2fuaJq5yJ1GrBA994uQRtOAsUpyjWJsulhfbXwGVMora7+daUQV8IjbCt14YptJiM2kjLPbsLRUK6GRgisWTVl3OwaayVSVIXTUmCzPcDWuXg3QJ9bAeF48Sy8OGTvi/KfIoDfE7cKd9OUhTRJCr8IaBk6mq7BSdCaiXo/TjPan1fEUmygnnb0gFJTFMaOyTBO+JRpdtDvxO/OU8MOJfUHloYuCAoZ7XNnza5CFzC+idoaJx4gII5gBzYh2mPb2KWf2MG1BWHLJbXGCktM0BHsgREsHQO2TQb/T7rSaD8j9ht95pqnoJv0DYubVqD7xlji/nrX3MxV45e/rsvoOAdfjY3g== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Hi Harry, kernel test robot noticed the following build errors: [auto build test ERROR on akpm-mm/mm-everything] url: https://github.com/intel-lab-lkp/linux/commits/Harry-Yoo/mm-slab-use-unsigned-long-for-orig_size-to-ensure-proper-metadata-align/20251222-191144 base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/r/20251222110843.980347-5-harry.yoo%40oracle.com patch subject: [PATCH V4 4/8] mm/slab: abstract slabobj_ext access via new slab_obj_ext() helper config: x86_64-buildonly-randconfig-001-20251223 (https://download.01.org/0day-ci/archive/20251223/202512230850.bBE4pAZ5-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/20251223/202512230850.bBE4pAZ5-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/202512230850.bBE4pAZ5-lkp@intel.com/ All errors (new ones prefixed by >>): >> mm/slub.c:2056:33: error: passing 'union codetag_ref' to parameter of incompatible type 'union codetag_ref *'; take the address with & 2056 | if (unlikely(is_codetag_empty(ext->ref))) | ^~~~~~~~ | & include/linux/compiler.h:47:41: note: expanded from macro 'unlikely' 47 | # define unlikely(x) (__branch_check__(x, 0, __builtin_constant_p(x))) | ^ include/linux/compiler.h:32:34: note: expanded from macro '__branch_check__' 32 | ______r = __builtin_expect(!!(x), expect); \ | ^ include/linux/alloc_tag.h:52:56: note: passing argument to parameter 'ref' here 52 | static inline bool is_codetag_empty(union codetag_ref *ref) | ^ >> mm/slub.c:2056:33: error: passing 'union codetag_ref' to parameter of incompatible type 'union codetag_ref *'; take the address with & 2056 | if (unlikely(is_codetag_empty(ext->ref))) | ^~~~~~~~ | & include/linux/compiler.h:47:68: note: expanded from macro 'unlikely' 47 | # define unlikely(x) (__branch_check__(x, 0, __builtin_constant_p(x))) | ^ include/linux/compiler.h:34:19: note: expanded from macro '__branch_check__' 34 | expect, is_constant); \ | ^~~~~~~~~~~ include/linux/alloc_tag.h:52:56: note: passing argument to parameter 'ref' here 52 | static inline bool is_codetag_empty(union codetag_ref *ref) | ^ 2 errors generated. vim +2056 mm/slub.c 2042 2043 static inline void mark_objexts_empty(struct slabobj_ext *obj_exts) 2044 { 2045 unsigned long slab_exts; 2046 struct slab *obj_exts_slab; 2047 2048 obj_exts_slab = virt_to_slab(obj_exts); 2049 slab_exts = slab_obj_exts(obj_exts_slab); 2050 if (slab_exts) { 2051 unsigned int offs = obj_to_index(obj_exts_slab->slab_cache, 2052 obj_exts_slab, obj_exts); 2053 struct slabobj_ext *ext = slab_obj_ext(obj_exts_slab, 2054 slab_exts, offs); 2055 > 2056 if (unlikely(is_codetag_empty(ext->ref))) 2057 return; 2058 2059 /* codetag should be NULL here */ 2060 WARN_ON(ext->ref.ct); 2061 set_codetag_empty(&ext->ref); 2062 } 2063 } 2064 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki