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X-CSE-ConnectionGUID: vZFi4AR2RGeYKP3xzj3yPA== X-CSE-MsgGUID: C7Wn58/STOKW6Yj0mS7kuA== X-IronPort-AV: E=McAfee;i="6800,10657,11726"; a="76970259" X-IronPort-AV: E=Sophos;i="6.23,115,1770624000"; d="scan'208";a="76970259" Received: from orviesa003.jf.intel.com ([10.64.159.143]) by fmvoesa107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Mar 2026 17:51:29 -0700 X-CSE-ConnectionGUID: 3YAK2u5URlimodJnwTj7Gw== X-CSE-MsgGUID: X1sZP5PwQg++82HJB1aZBA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.23,115,1770624000"; d="scan'208";a="224786134" Received: from lkp-server01.sh.intel.com (HELO 418530b1a366) ([10.239.97.150]) by orviesa003.jf.intel.com with ESMTP; 11 Mar 2026 17:51:28 -0700 Received: from kbuild by 418530b1a366 with local (Exim 4.98.2) (envelope-from ) id 1w0UGr-000000001rz-2WkK; Thu, 12 Mar 2026 00:51:25 +0000 Date: Thu, 12 Mar 2026 08:50:43 +0800 From: kernel test robot To: Jihan LIN via B4 Relay Cc: oe-kbuild-all@lists.linux.dev Subject: Re: [PATCH RFC v2 5/5] zram: Add lz4 PoC for zcomp-managed streams Message-ID: <202603120814.rJ0HCHXj-lkp@intel.com> References: <20260309-b4_zcomp_stream-v2-5-7148622326eb@gmail.com> Precedence: bulk X-Mailing-List: oe-kbuild-all@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260309-b4_zcomp_stream-v2-5-7148622326eb@gmail.com> Hi Jihan, [This is a private test report for your RFC patch.] kernel test robot noticed the following build errors: [auto build test ERROR on 11439c4635edd669ae435eec308f4ab8a0804808] url: https://github.com/intel-lab-lkp/linux/commits/Jihan-LIN-via-B4-Relay/zram-Rename-zcomp_strm_-init-free/20260309-205805 base: 11439c4635edd669ae435eec308f4ab8a0804808 patch link: https://lore.kernel.org/r/20260309-b4_zcomp_stream-v2-5-7148622326eb%40gmail.com patch subject: [PATCH RFC v2 5/5] zram: Add lz4 PoC for zcomp-managed streams config: csky-allmodconfig (https://download.01.org/0day-ci/archive/20260312/202603120814.rJ0HCHXj-lkp@intel.com/config) compiler: csky-linux-gcc (GCC) 15.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260312/202603120814.rJ0HCHXj-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/202603120814.rJ0HCHXj-lkp@intel.com/ All errors (new ones prefixed by >>): In file included from : In function 'lz4_compress_managed', inlined from 'lz4_compress' at drivers/block/zram/backend_lz4.c:455:9: >> include/linux/compiler_types.h:706:45: error: call to '__compiletime_assert_155' declared with attribute error: BUILD_BUG_ON failed: IS_ENABLED(CONFIG_HIGHMEM) 706 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) | ^ include/linux/compiler_types.h:687:25: note: in definition of macro '__compiletime_assert' 687 | prefix ## suffix(); \ | ^~~~~~ include/linux/compiler_types.h:706:9: note: in expansion of macro '_compiletime_assert' 706 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) | ^~~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert' 39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg) | ^~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:50:9: note: in expansion of macro 'BUILD_BUG_ON_MSG' 50 | BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition) | ^~~~~~~~~~~~~~~~ drivers/block/zram/backend_lz4.c:436:17: note: in expansion of macro 'BUILD_BUG_ON' 436 | BUILD_BUG_ON(IS_ENABLED(CONFIG_HIGHMEM)); | ^~~~~~~~~~~~ -- In file included from : In function 'lz4_compress_managed', inlined from 'lz4_compress' at backend_lz4.c:455:9: >> include/linux/compiler_types.h:706:45: error: call to '__compiletime_assert_155' declared with attribute error: BUILD_BUG_ON failed: IS_ENABLED(CONFIG_HIGHMEM) 706 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) | ^ include/linux/compiler_types.h:687:25: note: in definition of macro '__compiletime_assert' 687 | prefix ## suffix(); \ | ^~~~~~ include/linux/compiler_types.h:706:9: note: in expansion of macro '_compiletime_assert' 706 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) | ^~~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert' 39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg) | ^~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:50:9: note: in expansion of macro 'BUILD_BUG_ON_MSG' 50 | BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition) | ^~~~~~~~~~~~~~~~ backend_lz4.c:436:17: note: in expansion of macro 'BUILD_BUG_ON' 436 | BUILD_BUG_ON(IS_ENABLED(CONFIG_HIGHMEM)); | ^~~~~~~~~~~~ vim +/__compiletime_assert_155 +706 include/linux/compiler_types.h eb5c2d4b45e3d2d Will Deacon 2020-07-21 692 eb5c2d4b45e3d2d Will Deacon 2020-07-21 693 #define _compiletime_assert(condition, msg, prefix, suffix) \ eb5c2d4b45e3d2d Will Deacon 2020-07-21 694 __compiletime_assert(condition, msg, prefix, suffix) eb5c2d4b45e3d2d Will Deacon 2020-07-21 695 eb5c2d4b45e3d2d Will Deacon 2020-07-21 696 /** eb5c2d4b45e3d2d Will Deacon 2020-07-21 697 * compiletime_assert - break build and emit msg if condition is false eb5c2d4b45e3d2d Will Deacon 2020-07-21 698 * @condition: a compile-time constant condition to check eb5c2d4b45e3d2d Will Deacon 2020-07-21 699 * @msg: a message to emit if condition is false eb5c2d4b45e3d2d Will Deacon 2020-07-21 700 * eb5c2d4b45e3d2d Will Deacon 2020-07-21 701 * In tradition of POSIX assert, this macro will break the build if the eb5c2d4b45e3d2d Will Deacon 2020-07-21 702 * supplied condition is *false*, emitting the supplied error message if the eb5c2d4b45e3d2d Will Deacon 2020-07-21 703 * compiler has support to do so. eb5c2d4b45e3d2d Will Deacon 2020-07-21 704 */ eb5c2d4b45e3d2d Will Deacon 2020-07-21 705 #define compiletime_assert(condition, msg) \ eb5c2d4b45e3d2d Will Deacon 2020-07-21 @706 _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) eb5c2d4b45e3d2d Will Deacon 2020-07-21 707 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki