From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.19]) (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 2E36B38F82; Tue, 11 Jun 2024 15:55:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.19 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718121325; cv=none; b=CXRFxfAduX9Ub1yQzP1GvfKp6nX6xNkeMCHgMEynlDdf6uScsXX4RufMZiqbGtPYP33Vq6qOGOvYI6dZsAwa1Xh33iqsygQz8dnLFAnIQnWHM9G0Q/oXbMCMVcRxdbWmnid7Z2Rs1Edsr2fFojfPFU5wRFfG4wTnJFLqorsst0E= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718121325; c=relaxed/simple; bh=I5aTgCAVxVL8odAbeMufOk8gtJT03Lg4Q5scCLrbQUo=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=liaeNLF7rxMGRakZyKn6SA707yx1621IUQ2OHDS80npAkdozBFpyV5TbYhLePsDvZZ/W42wYaqFUNWv3srcm0aAaBz3Ksd5wgfEXUQ1xqv/9OCbVfMrjQdmxgoTnOwfxjy/ciksj+SfkJc1E19LNPCgr68slb3m1BlgIoaXTJzU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=none smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=eyixXqAO; arc=none smtp.client-ip=192.198.163.19 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="eyixXqAO" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1718121323; x=1749657323; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=I5aTgCAVxVL8odAbeMufOk8gtJT03Lg4Q5scCLrbQUo=; b=eyixXqAOP4SepCnE4VS4n76djgr12eTEGuNRWX/gFWGBGrY8Diopza/q nB/ZJTb1VtK5hYCSBav6XkAGQQ8Y5T6XhbrmWkI1OgNQv68WB1Htd73yw LGFfcClKmJubsDcHEukLBppGwOV0KjHwGNcrAnV3cAOoOXLdKSpJgAzdm GF+t6dAWduQxUboVzbS/uWXaFym5vEY9EBGlTUshj595YOwx+/kQCQ86X euP6x+FLwU3oVsueQoxgjfwdnt58dU07UsNB8ICOPPawsLLQwKOnK130N zJoCNvWeC1eXcjRULJefqgCqu7Gnb5TVVn+kvtyQxikI0oIas9dcMojya g==; X-CSE-ConnectionGUID: EZMweBwlQgiv0IBzOZehsQ== X-CSE-MsgGUID: Od30050zTCqN6dOqZY/pAg== X-IronPort-AV: E=McAfee;i="6600,9927,11100"; a="14641027" X-IronPort-AV: E=Sophos;i="6.08,230,1712646000"; d="scan'208";a="14641027" Received: from orviesa003.jf.intel.com ([10.64.159.143]) by fmvoesa113.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Jun 2024 08:55:22 -0700 X-CSE-ConnectionGUID: FcbQqxw8QD6s5D1pjv29SQ== X-CSE-MsgGUID: wcgAJGEBSj6EeLS57DUjww== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.08,230,1712646000"; d="scan'208";a="44378471" Received: from smile.fi.intel.com ([10.237.72.54]) by orviesa003.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Jun 2024 08:55:20 -0700 Received: from andy by smile.fi.intel.com with local (Exim 4.97) (envelope-from ) id 1sH3q8-0000000FaiK-39yV; Tue, 11 Jun 2024 18:55:16 +0300 Date: Tue, 11 Jun 2024 18:55:16 +0300 From: Andy Shevchenko To: kernel test robot , Youling Tang , Huacai Chen Cc: linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org, oe-kbuild-all@lists.linux.dev, Greg Kroah-Hartman , Jiri Slaby , Sean Christopherson , Linus Torvalds Subject: Re: [PATCH v1 1/1] serial: 8250_platform: Explicitly show we initialise ISA ports only once Message-ID: References: <20240606184841.3102545-1-andriy.shevchenko@linux.intel.com> <202406072102.SGp8FYYi-lkp@intel.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: <202406072102.SGp8FYYi-lkp@intel.com> Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo +Cc: initial authors of Loongarch64 jump table implementation and people who touched that code. On Fri, Jun 07, 2024 at 09:48:51PM +0800, kernel test robot wrote: > Hi Andy, > > kernel test robot noticed the following build warnings: > > [auto build test WARNING on tty/tty-testing] > [also build test WARNING on tty/tty-next next-20240607] > [cannot apply to tty/tty-linus linus/master v6.10-rc2] > [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/Andy-Shevchenko/serial-8250_platform-Explicitly-show-we-initialise-ISA-ports-only-once/20240607-025109 > base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git tty-testing > patch link: https://lore.kernel.org/r/20240606184841.3102545-1-andriy.shevchenko%40linux.intel.com > patch subject: [PATCH v1 1/1] serial: 8250_platform: Explicitly show we initialise ISA ports only once > config: loongarch-defconfig (https://download.01.org/0day-ci/archive/20240607/202406072102.SGp8FYYi-lkp@intel.com/config) > compiler: loongarch64-linux-gcc (GCC) 13.2.0 > reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240607/202406072102.SGp8FYYi-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/202406072102.SGp8FYYi-lkp@intel.com/ > > All warnings (new ones prefixed by >>): > > >> drivers/tty/serial/8250/8250_platform.o: warning: objtool: __jump_table+0x0: special: can't find orig instruction > > objdump-func vmlinux.o __jump_table: Folks, can you look into it? It sounds like jump table is misimplemented for this architecture (but I'm quite unsure). Similar issue LKP reported here: https://lore.kernel.org/all/202405290629.oaN9XxEz-lkp@intel.com/ P.S. Is it objtool issue or kernel issue? (Just thinking/questioning loudly) -- With Best Regards, Andy Shevchenko