From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.20]) (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 AD41031A045 for ; Fri, 23 Jan 2026 00:58:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.20 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769129918; cv=none; b=ddj1/yXyrPg9CSBEciiskIeL2WtwT/wRbMAaFOPYyE/uRvkeQ5LsRsIOjVHLxG8nsx8mGUOjkgLElhD4FkKwrBUGP26d/wNIj79IaDLnbuWPjPzvn6xNL+RIBmDVDfkM52eU0lQS2JkgWuzTd8iTth9WADElweECTf8WbQHAT0E= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769129918; c=relaxed/simple; bh=t1H3GzkTYkZOaN4mgNjiFniqVfyDevFqLR/FsAAoJCM=; h=Date:From:To:Cc:Subject:Message-ID; b=mzQavskt8YAJYxmDkFujswum+DZV+1O0+MIoBNiwizy+lQZ+S5ZcFCHfPUzFtS9+hqXJxXm1HdD9pdkvtdpw/4twtAxovFiAfzBiLi3+oMp+8RR5wBV/7rVHYgscKH0S/bDw2uz1ybmHPh0Ymc7vmxrRdBr215Z6avVhZvMJlvI= 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=J4KLwBpJ; arc=none smtp.client-ip=198.175.65.20 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="J4KLwBpJ" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1769129913; x=1800665913; h=date:from:to:cc:subject:message-id; bh=t1H3GzkTYkZOaN4mgNjiFniqVfyDevFqLR/FsAAoJCM=; b=J4KLwBpJJZ2n/e9FtT0u6ZRQ8M5hIvlbB+qXVd6X0OKaMqs5dpbkjc5g ZPQ4wq0lXveU7xOmfcIz0EqllXG36WcEphLi58X3iBK3j7pqzZSMwI4Fs 2SlE03vj1SIsInWYSp+U9qKKmuq9r//cAzIBI97QJtSdZlqvw8pertY3B tTC6NpaZq0AiUQETB/12KnEqivTvIEQcbWb9bDnmA3poUa/+axXr2sui/ 4SPFJNAijiHW5un0USLRFhQbqrSW1o+H7b31bu1xRr8KziCauoLC5Wz4g js2ijTioVFSZlpJx4qH42ggOpAJkUZ9UNBhYsUZYGQk5bzAXC1orExKs9 A==; X-CSE-ConnectionGUID: zwltNR3hQQGk1TfiBHD9Dw== X-CSE-MsgGUID: YLm5CL4jTOmTcNPk8nl95A== X-IronPort-AV: E=McAfee;i="6800,10657,11679"; a="70103542" X-IronPort-AV: E=Sophos;i="6.21,247,1763452800"; d="scan'208";a="70103542" Received: from orviesa007.jf.intel.com ([10.64.159.147]) by orvoesa112.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Jan 2026 16:58:28 -0800 X-CSE-ConnectionGUID: RM8R3nepTJGcC7ZsTjtX6g== X-CSE-MsgGUID: R5+jCUe+SGm5LUHmbD7Y6Q== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,247,1763452800"; d="scan'208";a="206935541" Received: from lkp-server01.sh.intel.com (HELO 765f4a05e27f) ([10.239.97.150]) by orviesa007.jf.intel.com with ESMTP; 22 Jan 2026 16:58:26 -0800 Received: from kbuild by 765f4a05e27f with local (Exim 4.98.2) (envelope-from ) id 1vj5VH-00000000TNS-3UVc; Fri, 23 Jan 2026 00:58:23 +0000 Date: Fri, 23 Jan 2026 08:58:22 +0800 From: kernel test robot To: Marek Vasut Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org, Tomi Valkeinen Subject: include/linux/compiler_types.h:597:38: error: call to '__compiletime_assert_495' declared with attribute error: FIELD_PREP: value too large for the field Message-ID: <202601230809.FBjF6OrH-lkp@intel.com> User-Agent: s-nail v14.9.25 Precedence: bulk X-Mailing-List: oe-kbuild-all@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: Hi Marek, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: a66191c590b3b58eaff05d2277971f854772bd5b commit: 4f716a1db661cfb31502a0a6d7e62c06daf2e603 drm/rcar-du: dsi: Convert register bitfields to GENMASK() macro date: 3 months ago config: arc-randconfig-r053-20260123 (https://download.01.org/0day-ci/archive/20260123/202601230809.FBjF6OrH-lkp@intel.com/config) compiler: arc-linux-gcc (GCC) 8.5.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260123/202601230809.FBjF6OrH-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/202601230809.FBjF6OrH-lkp@intel.com/ All errors (new ones prefixed by >>): In file included from : drivers/gpu/drm/renesas/rcar-du/rcar_mipi_dsi.c: In function 'rcar_mipi_dsi_startup.isra.6': >> include/linux/compiler_types.h:597:38: error: call to '__compiletime_assert_495' declared with attribute error: FIELD_PREP: value too large for the field _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) ^ include/linux/compiler_types.h:578:4: note: in definition of macro '__compiletime_assert' prefix ## suffix(); \ ^~~~~~ include/linux/compiler_types.h:597:2: note: in expansion of macro '_compiletime_assert' _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) ^~~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert' #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg) ^~~~~~~~~~~~~~~~~~ include/linux/bitfield.h:68:3: note: in expansion of macro 'BUILD_BUG_ON_MSG' BUILD_BUG_ON_MSG(__builtin_constant_p(_val) ? \ ^~~~~~~~~~~~~~~~ include/linux/bitfield.h:115:3: note: in expansion of macro '__BF_FIELD_CHECK' __BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: "); \ ^~~~~~~~~~~~~~~~ drivers/gpu/drm/renesas/rcar-du/rcar_mipi_dsi_regs.h:259:29: note: in expansion of macro 'FIELD_PREP' #define VCLKSET_DIV_V4H(n) FIELD_PREP(VCLKSET_DIV_V4H_MASK, (n)) ^~~~~~~~~~ drivers/gpu/drm/renesas/rcar-du/rcar_mipi_dsi.c:660:14: note: in expansion of macro 'VCLKSET_DIV_V4H' vclkset |= VCLKSET_DIV_V4H(__ffs(setup_info.vclk_divider) - 1); ^~~~~~~~~~~~~~~ vim +/__compiletime_assert_495 +597 include/linux/compiler_types.h eb5c2d4b45e3d2d Will Deacon 2020-07-21 583 eb5c2d4b45e3d2d Will Deacon 2020-07-21 584 #define _compiletime_assert(condition, msg, prefix, suffix) \ eb5c2d4b45e3d2d Will Deacon 2020-07-21 585 __compiletime_assert(condition, msg, prefix, suffix) eb5c2d4b45e3d2d Will Deacon 2020-07-21 586 eb5c2d4b45e3d2d Will Deacon 2020-07-21 587 /** eb5c2d4b45e3d2d Will Deacon 2020-07-21 588 * compiletime_assert - break build and emit msg if condition is false eb5c2d4b45e3d2d Will Deacon 2020-07-21 589 * @condition: a compile-time constant condition to check eb5c2d4b45e3d2d Will Deacon 2020-07-21 590 * @msg: a message to emit if condition is false eb5c2d4b45e3d2d Will Deacon 2020-07-21 591 * eb5c2d4b45e3d2d Will Deacon 2020-07-21 592 * In tradition of POSIX assert, this macro will break the build if the eb5c2d4b45e3d2d Will Deacon 2020-07-21 593 * supplied condition is *false*, emitting the supplied error message if the eb5c2d4b45e3d2d Will Deacon 2020-07-21 594 * compiler has support to do so. eb5c2d4b45e3d2d Will Deacon 2020-07-21 595 */ eb5c2d4b45e3d2d Will Deacon 2020-07-21 596 #define compiletime_assert(condition, msg) \ eb5c2d4b45e3d2d Will Deacon 2020-07-21 @597 _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) eb5c2d4b45e3d2d Will Deacon 2020-07-21 598 :::::: The code at line 597 was first introduced by commit :::::: eb5c2d4b45e3d2d5d052ea6b8f1463976b1020d5 compiler.h: Move compiletime_assert() macros into compiler_types.h :::::: TO: Will Deacon :::::: CC: Will Deacon -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki