From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id AA976C433F5 for ; Wed, 23 Feb 2022 12:47:41 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id DF73710F1CA; Wed, 23 Feb 2022 12:47:35 +0000 (UTC) Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by gabe.freedesktop.org (Postfix) with ESMTPS id 0143D10F1CA; Wed, 23 Feb 2022 12:47:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1645620454; x=1677156454; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=QQxeX/jbVCxYVyClBrFI4ueqwrzdBsTi7qkw3tVNQtM=; b=bE6Gsj1sskD+iGIiLTNrpRRF3M/reSWMhXpmXo1rH1yXsV3xHUyoB7EG Jkhny+Sbt5H96JzCbHzeu6q/MXWzdh6dvamvZtF3JQwhkNzbOqtGG1dPm c3T2AeHYWk+IFPrbTFBD8tAJEqD4zt5n+RXUml6R11mC7I7AQks+m+l1F HofB1sET5tiZb9eIkb9sAP/8/LVNnVS9/dSLhB/NxhZfkwkKf1QAIx/bK ekofWIorDha8ZHYDd2MfDJyj4X+YAO4CNhiFK3B5D3Fa7fhWYi5SCz7IW kv6zGlDWD3UENs8cB1AV09z06y14znGuSAYjav5h0Q4cSleACYyrF2lQX g==; X-IronPort-AV: E=McAfee;i="6200,9189,10266"; a="232574667" X-IronPort-AV: E=Sophos;i="5.88,390,1635231600"; d="scan'208";a="232574667" Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 23 Feb 2022 04:47:33 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.88,390,1635231600"; d="scan'208";a="491183315" Received: from lkp-server01.sh.intel.com (HELO 788b1cd46f0d) ([10.239.97.150]) by orsmga003.jf.intel.com with ESMTP; 23 Feb 2022 04:47:30 -0800 Received: from kbuild by 788b1cd46f0d with local (Exim 4.92) (envelope-from ) id 1nMr3K-0001Ou-1I; Wed, 23 Feb 2022 12:47:30 +0000 Date: Wed, 23 Feb 2022 20:46:59 +0800 From: kernel test robot To: Michael Cheng , intel-gfx@lists.freedesktop.org Message-ID: <202202231817.dkY1qGrU-lkp@intel.com> References: <20220223055900.415627-2-michael.cheng@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220223055900.415627-2-michael.cheng@intel.com> User-Agent: Mutt/1.10.1 (2018-07-13) Subject: Re: [Intel-gfx] [PATCH v11 1/6] drm: Add arch arm64 for drm_clflush_virt_range X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kbuild-all@lists.01.org, llvm@lists.linux.dev, lucas.demarchi@intel.com, dri-devel@lists.freedesktop.org, michael.cheng@intel.com Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Hi Michael, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on drm-tip/drm-tip] [also build test WARNING on drm/drm-next] [cannot apply to drm-intel/for-linux-next v5.17-rc5 next-20220222] [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] url: https://github.com/0day-ci/linux/commits/Michael-Cheng/Use-drm_clflush-instead-of-clflush/20220223-140110 base: git://anongit.freedesktop.org/drm/drm-tip drm-tip config: s390-randconfig-r013-20220221 (https://download.01.org/0day-ci/archive/20220223/202202231817.dkY1qGrU-lkp@intel.com/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project d271fc04d5b97b12e6b797c6067d3c96a8d7470e) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install s390 cross compiling tool for clang build # apt-get install binutils-s390x-linux-gnu # https://github.com/0day-ci/linux/commit/f4c92ba1f52db578a26ac9944e2cbe52c548e8e9 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Michael-Cheng/Use-drm_clflush-instead-of-clflush/20220223-140110 git checkout f4c92ba1f52db578a26ac9944e2cbe52c548e8e9 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=s390 SHELL=/bin/bash drivers/gpu/drm/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All warnings (new ones prefixed by >>): In file included from drivers/gpu/drm/drm_cache.c:31: >> include/linux/cacheflush.h:12:46: warning: declaration of 'struct folio' will not be visible outside of this function [-Wvisibility] static inline void flush_dcache_folio(struct folio *folio) ^ In file included from drivers/gpu/drm/drm_cache.c:35: In file included from include/linux/iosys-map.h:9: In file included from include/linux/io.h:13: In file included from arch/s390/include/asm/io.h:75: include/asm-generic/io.h:464:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] val = __raw_readb(PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:477:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr)); ~~~~~~~~~~ ^ include/uapi/linux/byteorder/big_endian.h:37:59: note: expanded from macro '__le16_to_cpu' #define __le16_to_cpu(x) __swab16((__force __u16)(__le16)(x)) ^ include/uapi/linux/swab.h:102:54: note: expanded from macro '__swab16' #define __swab16(x) (__u16)__builtin_bswap16((__u16)(x)) ^ In file included from drivers/gpu/drm/drm_cache.c:35: In file included from include/linux/iosys-map.h:9: In file included from include/linux/io.h:13: In file included from arch/s390/include/asm/io.h:75: include/asm-generic/io.h:490:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr)); ~~~~~~~~~~ ^ include/uapi/linux/byteorder/big_endian.h:35:59: note: expanded from macro '__le32_to_cpu' #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x)) ^ include/uapi/linux/swab.h:115:54: note: expanded from macro '__swab32' #define __swab32(x) (__u32)__builtin_bswap32((__u32)(x)) ^ In file included from drivers/gpu/drm/drm_cache.c:35: In file included from include/linux/iosys-map.h:9: In file included from include/linux/io.h:13: In file included from arch/s390/include/asm/io.h:75: include/asm-generic/io.h:501:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] __raw_writeb(value, PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:511:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:521:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:609:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] readsb(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ include/asm-generic/io.h:617:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] readsw(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ include/asm-generic/io.h:625:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] readsl(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ include/asm-generic/io.h:634:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] writesb(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ include/asm-generic/io.h:643:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] writesw(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ include/asm-generic/io.h:652:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] writesl(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ 13 warnings generated. vim +12 include/linux/cacheflush.h 522a0032af0055 Matthew Wilcox (Oracle 2021-11-06 6) 522a0032af0055 Matthew Wilcox (Oracle 2021-11-06 7) #if ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 522a0032af0055 Matthew Wilcox (Oracle 2021-11-06 8) #ifndef ARCH_IMPLEMENTS_FLUSH_DCACHE_FOLIO 522a0032af0055 Matthew Wilcox (Oracle 2021-11-06 9) void flush_dcache_folio(struct folio *folio); 522a0032af0055 Matthew Wilcox (Oracle 2021-11-06 10) #endif 522a0032af0055 Matthew Wilcox (Oracle 2021-11-06 11) #else 522a0032af0055 Matthew Wilcox (Oracle 2021-11-06 @12) static inline void flush_dcache_folio(struct folio *folio) 522a0032af0055 Matthew Wilcox (Oracle 2021-11-06 13) { 522a0032af0055 Matthew Wilcox (Oracle 2021-11-06 14) } 522a0032af0055 Matthew Wilcox (Oracle 2021-11-06 15) #define ARCH_IMPLEMENTS_FLUSH_DCACHE_FOLIO 0 522a0032af0055 Matthew Wilcox (Oracle 2021-11-06 16) #endif /* ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE */ 522a0032af0055 Matthew Wilcox (Oracle 2021-11-06 17) --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org