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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id BB0AAC433EF for ; Wed, 8 Dec 2021 16:45:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237232AbhLHQtZ (ORCPT ); Wed, 8 Dec 2021 11:49:25 -0500 Received: from mga01.intel.com ([192.55.52.88]:18366 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233943AbhLHQtY (ORCPT ); Wed, 8 Dec 2021 11:49:24 -0500 X-IronPort-AV: E=McAfee;i="6200,9189,10192"; a="261952971" X-IronPort-AV: E=Sophos;i="5.88,190,1635231600"; d="scan'208";a="261952971" Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Dec 2021 08:45:52 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.88,190,1635231600"; d="scan'208";a="751951474" Received: from lkp-server02.sh.intel.com (HELO 9e1e9f9b3bcb) ([10.239.97.151]) by fmsmga005.fm.intel.com with ESMTP; 08 Dec 2021 08:45:50 -0800 Received: from kbuild by 9e1e9f9b3bcb with local (Exim 4.92) (envelope-from ) id 1mv04j-0000oV-Rh; Wed, 08 Dec 2021 16:45:49 +0000 Date: Thu, 9 Dec 2021 00:45:28 +0800 From: kernel test robot To: Kees Cook Cc: kbuild-all@lists.01.org, linux-kernel@vger.kernel.org Subject: [kees:memcpy/step2/next-20211206 7/19] drivers/video/fbdev/cirrusfb.c:1852:17: sparse: sparse: incorrect type in argument 1 (different address spaces) Message-ID: <202112090051.zPyOnn1p-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.10.1 (2018-07-13) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org tree: https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git memcpy/step2/next-20211206 head: 082faead4a3c2e5d9f541f97d8d4d5fa0f88dce0 commit: a91965903a44bf236856efc7e20c6334c4e07388 [7/19] fortify: Detect struct member overflows in memcpy() at compile-time config: i386-randconfig-s002-20211207 (https://download.01.org/0day-ci/archive/20211209/202112090051.zPyOnn1p-lkp@intel.com/config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.4-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git/commit/?id=a91965903a44bf236856efc7e20c6334c4e07388 git remote add kees https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git git fetch --no-tags kees memcpy/step2/next-20211206 git checkout a91965903a44bf236856efc7e20c6334c4e07388 # save the config file to linux build tree mkdir build_dir make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=i386 SHELL=/bin/bash drivers/gpu/drm/gma500/ drivers/video/fbdev/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot sparse warnings: (new ones prefixed by >>) >> drivers/video/fbdev/cirrusfb.c:1852:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const * @@ got char [noderef] __iomem *screen_base @@ drivers/video/fbdev/cirrusfb.c:1852:17: sparse: expected void const * drivers/video/fbdev/cirrusfb.c:1852:17: sparse: got char [noderef] __iomem *screen_base >> drivers/video/fbdev/cirrusfb.c:1852:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const * @@ got char [noderef] __iomem *screen_base @@ drivers/video/fbdev/cirrusfb.c:1852:17: sparse: expected void const * drivers/video/fbdev/cirrusfb.c:1852:17: sparse: got char [noderef] __iomem *screen_base drivers/video/fbdev/cirrusfb.c:1852:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void * @@ got char [noderef] __iomem *screen_base @@ drivers/video/fbdev/cirrusfb.c:1852:17: sparse: expected void * drivers/video/fbdev/cirrusfb.c:1852:17: sparse: got char [noderef] __iomem *screen_base vim +1852 drivers/video/fbdev/cirrusfb.c ^1da177e4c3f41 drivers/video/cirrusfb.c Linus Torvalds 2005-04-16 1809 8503df65976d0f drivers/video/cirrusfb.c Krzysztof Helt 2007-10-16 1810 static void cirrusfb_imageblit(struct fb_info *info, 8503df65976d0f drivers/video/cirrusfb.c Krzysztof Helt 2007-10-16 1811 const struct fb_image *image) ^1da177e4c3f41 drivers/video/cirrusfb.c Linus Torvalds 2005-04-16 1812 { ^1da177e4c3f41 drivers/video/cirrusfb.c Linus Torvalds 2005-04-16 1813 struct cirrusfb_info *cinfo = info->par; 7cade31cabec33 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1814 unsigned char op = (info->var.bits_per_pixel == 24) ? 0xc : 0x4; ^1da177e4c3f41 drivers/video/cirrusfb.c Linus Torvalds 2005-04-16 1815 9e848062533207 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1816 if (info->state != FBINFO_STATE_RUNNING) 9e848062533207 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1817 return; df3aafd57d590d drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1818 /* Alpine/SD64 does not work at 24bpp ??? */ df3aafd57d590d drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1819 if (info->flags & FBINFO_HWACCEL_DISABLED || image->depth != 1) df3aafd57d590d drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1820 cfb_imageblit(info, image); df3aafd57d590d drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1821 else if ((cinfo->btype == BT_ALPINE || cinfo->btype == BT_SD64) && df3aafd57d590d drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1822 op == 0xc) ^1da177e4c3f41 drivers/video/cirrusfb.c Linus Torvalds 2005-04-16 1823 cfb_imageblit(info, image); 9e848062533207 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1824 else { 9e848062533207 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1825 unsigned size = ((image->width + 7) >> 3) * image->height; 9e848062533207 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1826 int m = info->var.bits_per_pixel; 9e848062533207 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1827 u32 fg, bg; 9e848062533207 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1828 9e848062533207 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1829 if (info->var.bits_per_pixel == 8) { 9e848062533207 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1830 fg = image->fg_color; 9e848062533207 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1831 bg = image->bg_color; 9e848062533207 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1832 } else { 9e848062533207 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1833 fg = ((u32 *)(info->pseudo_palette))[image->fg_color]; 9e848062533207 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1834 bg = ((u32 *)(info->pseudo_palette))[image->bg_color]; 9e848062533207 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1835 } 7cade31cabec33 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1836 if (info->var.bits_per_pixel == 24) { 7cade31cabec33 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1837 /* clear background first */ 7cade31cabec33 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1838 cirrusfb_RectFill(cinfo->regbase, 7cade31cabec33 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1839 info->var.bits_per_pixel, 7cade31cabec33 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1840 (image->dx * m) / 8, image->dy, 7cade31cabec33 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1841 (image->width * m) / 8, 7cade31cabec33 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1842 image->height, 7cade31cabec33 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1843 bg, bg, 7cade31cabec33 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1844 info->fix.line_length, 0x40); 7cade31cabec33 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1845 } 9e848062533207 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1846 cirrusfb_RectFill(cinfo->regbase, 9e848062533207 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1847 info->var.bits_per_pixel, 9e848062533207 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1848 (image->dx * m) / 8, image->dy, 9e848062533207 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1849 (image->width * m) / 8, image->height, 9e848062533207 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1850 fg, bg, 7cade31cabec33 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1851 info->fix.line_length, op); 9e848062533207 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 @1852 memcpy(info->screen_base, image->data, size); 9e848062533207 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1853 } ^1da177e4c3f41 drivers/video/cirrusfb.c Linus Torvalds 2005-04-16 1854 } ^1da177e4c3f41 drivers/video/cirrusfb.c Linus Torvalds 2005-04-16 1855 :::::: The code at line 1852 was first introduced by commit :::::: 9e848062533207130667f6eaa748549367ccbedf cirrusfb: add imageblit function :::::: TO: Krzysztof Helt :::::: CC: Linus Torvalds --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org