From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.17]) (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 4927637F737; Wed, 14 Jan 2026 08:50:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.17 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768380633; cv=none; b=bvHd+W11FMuC8HcG7SqOMN0A/Sxpx0zyAuIEaW9Ps6nJO3wTK+7YjvKEFUkEWwvt0fmaLYqHGBwGvQaPRcejFB1oLnZzwsfcLTppAH6jear+yxUYcDZ2IIORnhnMpEf+JTK1eg5MP563XadZH0vuP9CeZcqdpbN8Kjgs/Xgti/g= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768380633; c=relaxed/simple; bh=9WrC7PoW1tnMSWaGp+a6OzL1P5H5ocgF70PzqOotMyc=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=Ywtp+IhFZqkXaNgNGzlGqXwmQmztFIQoLvf7e3/Sr4lHwtE9VqAtTvSRuSZyjpiSBxn5uFSYWfpE2b7iJESM1vjYISYM5sBAFQkqpi3Pa8zXmVs2WXhLaMOC02vQADKGW6eRpvDpn+L18D97UkuoVfntpVhRflBnlMFZ1dWjCwM= 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=TpmtMO+q; arc=none smtp.client-ip=192.198.163.17 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="TpmtMO+q" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1768380630; x=1799916630; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=9WrC7PoW1tnMSWaGp+a6OzL1P5H5ocgF70PzqOotMyc=; b=TpmtMO+qG5wVCVhdUL98HY+a+e8ntoif8/oWzDV/uSdsjZe0sOvE/PKT PMvFTHtyeqHEt1Rx34l8b02rD6Gj0vUArVSXp1DWKIqiHZzhP3RWtLr1V EegI4yQS/9oXMvl8vCknFg18ZY3lw7awqExCytiLgfy5Ng9KT71JV+SU7 vkX1lLpfzsL838FYFmaLNJp6yi8to4Kvv4TNlBc45jBbethmFk2D0Pe8K Y4An/HyRltVTQeyRztmFstWfQD7JjvDMfKyAh2SGBZiciDDVuJ8H/0IpR q/h2Jrqx6HyjGYhdaULWSS/tNGjn7IELHVOu+ZIgTr+EgtQE9QDu8ezle Q==; X-CSE-ConnectionGUID: KSQRpBqPSke/XVGLYQmrRg== X-CSE-MsgGUID: UVEW1CMfQ4uf1GB+gU4xuQ== X-IronPort-AV: E=McAfee;i="6800,10657,11670"; a="69583990" X-IronPort-AV: E=Sophos;i="6.21,225,1763452800"; d="scan'208";a="69583990" Received: from fmviesa006.fm.intel.com ([10.60.135.146]) by fmvoesa111.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 14 Jan 2026 00:50:28 -0800 X-CSE-ConnectionGUID: 51X8b6BBSdGy+ZLZ30sGMQ== X-CSE-MsgGUID: 377IeQY0TY2w52nrrvyDBw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,225,1763452800"; d="scan'208";a="204514346" Received: from lkp-server01.sh.intel.com (HELO 765f4a05e27f) ([10.239.97.150]) by fmviesa006.fm.intel.com with ESMTP; 14 Jan 2026 00:50:27 -0800 Received: from kbuild by 765f4a05e27f with local (Exim 4.98.2) (envelope-from ) id 1vfwa8-00000000G6C-3x4A; Wed, 14 Jan 2026 08:50:24 +0000 Date: Wed, 14 Jan 2026 16:49:46 +0800 From: kernel test robot To: Allen Pais Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev Subject: Re: [RFC PATCH 1/1] dmaengine: introduce dmaengine_bh_wq and bh helpers Message-ID: <202601141622.CAk5SXFi-lkp@intel.com> References: <20260108080332.2341725-2-allen.lkml@gmail.com> Precedence: bulk X-Mailing-List: llvm@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: <20260108080332.2341725-2-allen.lkml@gmail.com> Hi Allen, [This is a private test report for your RFC patch.] kernel test robot noticed the following build errors: [auto build test ERROR on vkoul-dmaengine/next] [also build test ERROR on shawnguo/for-next sunxi/sunxi/for-next soc/for-next linus/master v6.19-rc5 next-20260114] [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/Allen-Pais/dmaengine-introduce-dmaengine_bh_wq-and-bh-helpers/20260108-164201 base: https://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine.git next patch link: https://lore.kernel.org/r/20260108080332.2341725-2-allen.lkml%40gmail.com patch subject: [RFC PATCH 1/1] dmaengine: introduce dmaengine_bh_wq and bh helpers config: um-allmodconfig (https://download.01.org/0day-ci/archive/20260114/202601141622.CAk5SXFi-lkp@intel.com/config) compiler: clang version 19.1.7 (https://github.com/llvm/llvm-project cd708029e0b2869e80abe31ddb175f7c35361f90) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260114/202601141622.CAk5SXFi-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/202601141622.CAk5SXFi-lkp@intel.com/ All errors (new ones prefixed by >>): In file included from drivers/dma/hsu/hsu.c:22: In file included from include/linux/dmaengine.h:12: In file included from include/linux/scatterlist.h:9: In file included from arch/um/include/asm/io.h:24: include/asm-generic/io.h:1209:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1209 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ >> drivers/dma/hsu/hsu.c:503:29: error: no member named 'task' in 'struct virt_dma_chan' 503 | tasklet_kill(&hsuc->vchan.task); | ~~~~~~~~~~~ ^ 1 warning and 1 error generated. vim +503 drivers/dma/hsu/hsu.c 2b49e0c56741fc Andy Shevchenko 2015-02-23 492 2b49e0c56741fc Andy Shevchenko 2015-02-23 493 int hsu_dma_remove(struct hsu_dma_chip *chip) 2b49e0c56741fc Andy Shevchenko 2015-02-23 494 { 2b49e0c56741fc Andy Shevchenko 2015-02-23 495 struct hsu_dma *hsu = chip->hsu; 2b49e0c56741fc Andy Shevchenko 2015-02-23 496 unsigned short i; 2b49e0c56741fc Andy Shevchenko 2015-02-23 497 2b49e0c56741fc Andy Shevchenko 2015-02-23 498 dma_async_device_unregister(&hsu->dma); 2b49e0c56741fc Andy Shevchenko 2015-02-23 499 4c97ad993d7639 Heikki Krogerus 2015-10-13 500 for (i = 0; i < hsu->nr_channels; i++) { 2b49e0c56741fc Andy Shevchenko 2015-02-23 501 struct hsu_dma_chan *hsuc = &hsu->chan[i]; 2b49e0c56741fc Andy Shevchenko 2015-02-23 502 2b49e0c56741fc Andy Shevchenko 2015-02-23 @503 tasklet_kill(&hsuc->vchan.task); 2b49e0c56741fc Andy Shevchenko 2015-02-23 504 } 2b49e0c56741fc Andy Shevchenko 2015-02-23 505 2b49e0c56741fc Andy Shevchenko 2015-02-23 506 return 0; 2b49e0c56741fc Andy Shevchenko 2015-02-23 507 } 2b49e0c56741fc Andy Shevchenko 2015-02-23 508 EXPORT_SYMBOL_GPL(hsu_dma_remove); 2b49e0c56741fc Andy Shevchenko 2015-02-23 509 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki