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e0eace57cfef with local (Exim 4.96) (envelope-from ) id 1oLfO0-000Nbh-0i; Wed, 10 Aug 2022 06:40:12 +0000 Date: Wed, 10 Aug 2022 14:39:48 +0800 From: kernel test robot To: Kees Cook Cc: kbuild-all@lists.01.org, linux-kernel@vger.kernel.org Subject: drivers/video/fbdev/tdfxfb.c:1118:17: sparse: sparse: incorrect type in argument 1 (different address spaces) Message-ID: <202208101431.245QhuXv-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: d4252071b97d2027d246f6a82cbee4d52f618b47 commit: 28e77cc1c0686621a4d416f599cee5ab369daa0a fortify: Detect struct member overflows in memset() at compile-time date: 6 months ago config: mips-randconfig-s041-20220810 (https://download.01.org/0day-ci/archive/20220810/202208101431.245QhuXv-lkp@intel.com/config) compiler: mipsel-linux-gcc (GCC) 12.1.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.4-39-gce1a6720-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=28e77cc1c0686621a4d416f599cee5ab369daa0a git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 28e77cc1c0686621a4d416f599cee5ab369daa0a # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=mips SHELL=/bin/bash drivers/video/fbdev/ If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot sparse warnings: (new ones prefixed by >>) >> drivers/video/fbdev/tdfxfb.c:1118:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const * @@ got unsigned char [noderef] [usertype] __iomem *cursorbase @@ drivers/video/fbdev/tdfxfb.c:1118:17: sparse: expected void const * drivers/video/fbdev/tdfxfb.c:1118:17: sparse: got unsigned char [noderef] [usertype] __iomem *cursorbase >> drivers/video/fbdev/tdfxfb.c:1118:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const * @@ got unsigned char [noderef] [usertype] __iomem *cursorbase @@ drivers/video/fbdev/tdfxfb.c:1118:17: sparse: expected void const * drivers/video/fbdev/tdfxfb.c:1118:17: sparse: got unsigned char [noderef] [usertype] __iomem *cursorbase drivers/video/fbdev/tdfxfb.c:1118:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void * @@ got unsigned char [noderef] [usertype] __iomem *cursorbase @@ drivers/video/fbdev/tdfxfb.c:1118:17: sparse: expected void * drivers/video/fbdev/tdfxfb.c:1118:17: sparse: got unsigned char [noderef] [usertype] __iomem *cursorbase drivers/video/fbdev/tdfxfb.c:1129:33: sparse: sparse: cast removes address space '__iomem' of expression drivers/video/fbdev/tdfxfb.c:1132:33: sparse: sparse: cast removes address space '__iomem' of expression -- >> drivers/video/fbdev/sstfb.c:337:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const * @@ got char [noderef] __iomem *screen_base @@ drivers/video/fbdev/sstfb.c:337:9: sparse: expected void const * drivers/video/fbdev/sstfb.c:337:9: sparse: got char [noderef] __iomem *screen_base >> drivers/video/fbdev/sstfb.c:337:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const * @@ got char [noderef] __iomem *screen_base @@ drivers/video/fbdev/sstfb.c:337:9: sparse: expected void const * drivers/video/fbdev/sstfb.c:337:9: sparse: got char [noderef] __iomem *screen_base drivers/video/fbdev/sstfb.c:337:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void * @@ got char [noderef] __iomem *screen_base @@ drivers/video/fbdev/sstfb.c:337:9: sparse: expected void * drivers/video/fbdev/sstfb.c:337:9: sparse: got char [noderef] __iomem *screen_base -- >> drivers/video/fbdev/aty/mach64_cursor.c:156:13: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const * @@ got unsigned char [noderef] [usertype] __iomem *dst @@ drivers/video/fbdev/aty/mach64_cursor.c:156:13: sparse: expected void const * drivers/video/fbdev/aty/mach64_cursor.c:156:13: sparse: got unsigned char [noderef] [usertype] __iomem *dst >> drivers/video/fbdev/aty/mach64_cursor.c:156:13: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const * @@ got unsigned char [noderef] [usertype] __iomem *dst @@ drivers/video/fbdev/aty/mach64_cursor.c:156:13: sparse: expected void const * drivers/video/fbdev/aty/mach64_cursor.c:156:13: sparse: got unsigned char [noderef] [usertype] __iomem *dst drivers/video/fbdev/aty/mach64_cursor.c:156:13: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void * @@ got unsigned char [noderef] [usertype] __iomem *dst @@ drivers/video/fbdev/aty/mach64_cursor.c:156:13: sparse: expected void * drivers/video/fbdev/aty/mach64_cursor.c:156:13: sparse: got unsigned char [noderef] [usertype] __iomem *dst drivers/video/fbdev/aty/mach64_cursor.c:187:25: sparse: sparse: cast removes address space '__iomem' of expression drivers/video/fbdev/aty/mach64_cursor.c:188:25: sparse: sparse: cast removes address space '__iomem' of expression -- >> drivers/video/fbdev/kyro/fbdev.c:733:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const * @@ got char [noderef] __iomem *screen_base @@ drivers/video/fbdev/kyro/fbdev.c:733:9: sparse: expected void const * drivers/video/fbdev/kyro/fbdev.c:733:9: sparse: got char [noderef] __iomem *screen_base >> drivers/video/fbdev/kyro/fbdev.c:733:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const * @@ got char [noderef] __iomem *screen_base @@ drivers/video/fbdev/kyro/fbdev.c:733:9: sparse: expected void const * drivers/video/fbdev/kyro/fbdev.c:733:9: sparse: got char [noderef] __iomem *screen_base drivers/video/fbdev/kyro/fbdev.c:733:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void * @@ got char [noderef] __iomem *screen_base @@ drivers/video/fbdev/kyro/fbdev.c:733:9: sparse: expected void * drivers/video/fbdev/kyro/fbdev.c:733:9: sparse: got char [noderef] __iomem *screen_base vim +1118 drivers/video/fbdev/tdfxfb.c ^1da177e4c3f41 drivers/video/tdfxfb.c Linus Torvalds 2005-04-16 1038 ^1da177e4c3f41 drivers/video/tdfxfb.c Linus Torvalds 2005-04-16 1039 static int tdfxfb_cursor(struct fb_info *info, struct fb_cursor *cursor) ^1da177e4c3f41 drivers/video/tdfxfb.c Linus Torvalds 2005-04-16 1040 { a807f618b62594 drivers/video/tdfxfb.c Antonino A. Daplas 2006-01-09 1041 struct tdfx_par *par = info->par; 90b0f08536531a drivers/video/tdfxfb.c Krzysztof Helt 2007-10-16 1042 u32 vidcfg; 90b0f08536531a drivers/video/tdfxfb.c Krzysztof Helt 2007-10-16 1043 90b0f08536531a drivers/video/tdfxfb.c Krzysztof Helt 2007-10-16 1044 if (!hwcursor) 90b0f08536531a drivers/video/tdfxfb.c Krzysztof Helt 2007-10-16 1045 return -EINVAL; /* just to force soft_cursor() call */ 90b0f08536531a drivers/video/tdfxfb.c Krzysztof Helt 2007-10-16 1046 90b0f08536531a drivers/video/tdfxfb.c Krzysztof Helt 2007-10-16 1047 /* Too large of a cursor or wrong bpp :-( */ 90b0f08536531a drivers/video/tdfxfb.c Krzysztof Helt 2007-10-16 1048 if (cursor->image.width > 64 || 90b0f08536531a drivers/video/tdfxfb.c Krzysztof Helt 2007-10-16 1049 cursor->image.height > 64 || 90b0f08536531a drivers/video/tdfxfb.c Krzysztof Helt 2007-10-16 1050 cursor->image.depth > 1) 90b0f08536531a drivers/video/tdfxfb.c Krzysztof Helt 2007-10-16 1051 return -EINVAL; 90b0f08536531a drivers/video/tdfxfb.c Krzysztof Helt 2007-10-16 1052 90b0f08536531a drivers/video/tdfxfb.c Krzysztof Helt 2007-10-16 1053 vidcfg = tdfx_inl(par, VIDPROCCFG); 90b0f08536531a drivers/video/tdfxfb.c Krzysztof Helt 2007-10-16 1054 if (cursor->enable) 90b0f08536531a drivers/video/tdfxfb.c Krzysztof Helt 2007-10-16 1055 tdfx_outl(par, VIDPROCCFG, vidcfg | VIDCFG_HWCURSOR_ENABLE); 90b0f08536531a drivers/video/tdfxfb.c Krzysztof Helt 2007-10-16 1056 else 90b0f08536531a drivers/video/tdfxfb.c Krzysztof Helt 2007-10-16 1057 tdfx_outl(par, VIDPROCCFG, vidcfg & ~VIDCFG_HWCURSOR_ENABLE); ^1da177e4c3f41 drivers/video/tdfxfb.c Linus Torvalds 2005-04-16 1058 ^1da177e4c3f41 drivers/video/tdfxfb.c Linus Torvalds 2005-04-16 1059 /* ^1da177e4c3f41 drivers/video/tdfxfb.c Linus Torvalds 2005-04-16 1060 * If the cursor is not be changed this means either we want the ^1da177e4c3f41 drivers/video/tdfxfb.c Linus Torvalds 2005-04-16 1061 * current cursor state (if enable is set) or we want to query what ^1da177e4c3f41 drivers/video/tdfxfb.c Linus Torvalds 2005-04-16 1062 * we can do with the cursor (if enable is not set) ^1da177e4c3f41 drivers/video/tdfxfb.c Linus Torvalds 2005-04-16 1063 */ 8af1d50f7f6793 drivers/video/tdfxfb.c Krzysztof Helt 2007-10-16 1064 if (!cursor->set) 8af1d50f7f6793 drivers/video/tdfxfb.c Krzysztof Helt 2007-10-16 1065 return 0; ^1da177e4c3f41 drivers/video/tdfxfb.c Linus Torvalds 2005-04-16 1066 ^1da177e4c3f41 drivers/video/tdfxfb.c Linus Torvalds 2005-04-16 1067 /* fix cursor color - XFree86 forgets to restore it properly */ 90b0f08536531a drivers/video/tdfxfb.c Krzysztof Helt 2007-10-16 1068 if (cursor->set & FB_CUR_SETCMAP) { 90b0f08536531a drivers/video/tdfxfb.c Krzysztof Helt 2007-10-16 1069 struct fb_cmap cmap = info->cmap; 90b0f08536531a drivers/video/tdfxfb.c Krzysztof Helt 2007-10-16 1070 u32 bg_idx = cursor->image.bg_color; 90b0f08536531a drivers/video/tdfxfb.c Krzysztof Helt 2007-10-16 1071 u32 fg_idx = cursor->image.fg_color; ^1da177e4c3f41 drivers/video/tdfxfb.c Linus Torvalds 2005-04-16 1072 unsigned long bg_color, fg_color; ^1da177e4c3f41 drivers/video/tdfxfb.c Linus Torvalds 2005-04-16 1073 90b0f08536531a drivers/video/tdfxfb.c Krzysztof Helt 2007-10-16 1074 fg_color = (((u32)cmap.red[fg_idx] & 0xff00) << 8) | 90b0f08536531a drivers/video/tdfxfb.c Krzysztof Helt 2007-10-16 1075 (((u32)cmap.green[fg_idx] & 0xff00) << 0) | 90b0f08536531a drivers/video/tdfxfb.c Krzysztof Helt 2007-10-16 1076 (((u32)cmap.blue[fg_idx] & 0xff00) >> 8); 90b0f08536531a drivers/video/tdfxfb.c Krzysztof Helt 2007-10-16 1077 bg_color = (((u32)cmap.red[bg_idx] & 0xff00) << 8) | 90b0f08536531a drivers/video/tdfxfb.c Krzysztof Helt 2007-10-16 1078 (((u32)cmap.green[bg_idx] & 0xff00) << 0) | 90b0f08536531a drivers/video/tdfxfb.c Krzysztof Helt 2007-10-16 1079 (((u32)cmap.blue[bg_idx] & 0xff00) >> 8); ^1da177e4c3f41 drivers/video/tdfxfb.c Linus Torvalds 2005-04-16 1080 banshee_make_room(par, 2); ^1da177e4c3f41 drivers/video/tdfxfb.c Linus Torvalds 2005-04-16 1081 tdfx_outl(par, HWCURC0, bg_color); ^1da177e4c3f41 drivers/video/tdfxfb.c Linus Torvalds 2005-04-16 1082 tdfx_outl(par, HWCURC1, fg_color); ^1da177e4c3f41 drivers/video/tdfxfb.c Linus Torvalds 2005-04-16 1083 } ^1da177e4c3f41 drivers/video/tdfxfb.c Linus Torvalds 2005-04-16 1084 90b0f08536531a drivers/video/tdfxfb.c Krzysztof Helt 2007-10-16 1085 if (cursor->set & FB_CUR_SETPOS) { 90b0f08536531a drivers/video/tdfxfb.c Krzysztof Helt 2007-10-16 1086 int x = cursor->image.dx; 90b0f08536531a drivers/video/tdfxfb.c Krzysztof Helt 2007-10-16 1087 int y = cursor->image.dy - info->var.yoffset; ^1da177e4c3f41 drivers/video/tdfxfb.c Linus Torvalds 2005-04-16 1088 ^1da177e4c3f41 drivers/video/tdfxfb.c Linus Torvalds 2005-04-16 1089 x += 63; ^1da177e4c3f41 drivers/video/tdfxfb.c Linus Torvalds 2005-04-16 1090 y += 63; ^1da177e4c3f41 drivers/video/tdfxfb.c Linus Torvalds 2005-04-16 1091 banshee_make_room(par, 1); ^1da177e4c3f41 drivers/video/tdfxfb.c Linus Torvalds 2005-04-16 1092 tdfx_outl(par, HWCURLOC, (y << 16) + x); ^1da177e4c3f41 drivers/video/tdfxfb.c Linus Torvalds 2005-04-16 1093 } 90b0f08536531a drivers/video/tdfxfb.c Krzysztof Helt 2007-10-16 1094 if (cursor->set & (FB_CUR_SETIMAGE | FB_CUR_SETSHAPE)) { ^1da177e4c3f41 drivers/video/tdfxfb.c Linus Torvalds 2005-04-16 1095 /* ^1da177e4c3f41 drivers/video/tdfxfb.c Linus Torvalds 2005-04-16 1096 * Voodoo 3 and above cards use 2 monochrome cursor patterns. ^1da177e4c3f41 drivers/video/tdfxfb.c Linus Torvalds 2005-04-16 1097 * The reason is so the card can fetch 8 words at a time ^1da177e4c3f41 drivers/video/tdfxfb.c Linus Torvalds 2005-04-16 1098 * and are stored on chip for use for the next 8 scanlines. ^1da177e4c3f41 drivers/video/tdfxfb.c Linus Torvalds 2005-04-16 1099 * This reduces the number of times for access to draw the ^1da177e4c3f41 drivers/video/tdfxfb.c Linus Torvalds 2005-04-16 1100 * cursor for each screen refresh. ^1da177e4c3f41 drivers/video/tdfxfb.c Linus Torvalds 2005-04-16 1101 * Each pattern is a bitmap of 64 bit wide and 64 bit high 90b0f08536531a drivers/video/tdfxfb.c Krzysztof Helt 2007-10-16 1102 * (total of 8192 bits or 1024 bytes). The two patterns are ^1da177e4c3f41 drivers/video/tdfxfb.c Linus Torvalds 2005-04-16 1103 * stored in such a way that pattern 0 always resides in the ^1da177e4c3f41 drivers/video/tdfxfb.c Linus Torvalds 2005-04-16 1104 * lower half (least significant 64 bits) of a 128 bit word ^1da177e4c3f41 drivers/video/tdfxfb.c Linus Torvalds 2005-04-16 1105 * and pattern 1 the upper half. If you examine the data of ^1da177e4c3f41 drivers/video/tdfxfb.c Linus Torvalds 2005-04-16 1106 * the cursor image the graphics card uses then from the 25985edcedea63 drivers/video/tdfxfb.c Lucas De Marchi 2011-03-30 1107 * beginning you see line one of pattern 0, line one of ^1da177e4c3f41 drivers/video/tdfxfb.c Linus Torvalds 2005-04-16 1108 * pattern 1, line two of pattern 0, line two of pattern 1, ^1da177e4c3f41 drivers/video/tdfxfb.c Linus Torvalds 2005-04-16 1109 * etc etc. The linear stride for the cursor is always 16 bytes ^1da177e4c3f41 drivers/video/tdfxfb.c Linus Torvalds 2005-04-16 1110 * (128 bits) which is the maximum cursor width times two for ^1da177e4c3f41 drivers/video/tdfxfb.c Linus Torvalds 2005-04-16 1111 * the two monochrome patterns. ^1da177e4c3f41 drivers/video/tdfxfb.c Linus Torvalds 2005-04-16 1112 */ 90b0f08536531a drivers/video/tdfxfb.c Krzysztof Helt 2007-10-16 1113 u8 __iomem *cursorbase = info->screen_base + info->fix.smem_len; 90b0f08536531a drivers/video/tdfxfb.c Krzysztof Helt 2007-10-16 1114 u8 *bitmap = (u8 *)cursor->image.data; 90b0f08536531a drivers/video/tdfxfb.c Krzysztof Helt 2007-10-16 1115 u8 *mask = (u8 *)cursor->mask; 90b0f08536531a drivers/video/tdfxfb.c Krzysztof Helt 2007-10-16 1116 int i; ^1da177e4c3f41 drivers/video/tdfxfb.c Linus Torvalds 2005-04-16 1117 90b0f08536531a drivers/video/tdfxfb.c Krzysztof Helt 2007-10-16 @1118 fb_memset(cursorbase, 0, 1024); 90b0f08536531a drivers/video/tdfxfb.c Krzysztof Helt 2007-10-16 1119 90b0f08536531a drivers/video/tdfxfb.c Krzysztof Helt 2007-10-16 1120 for (i = 0; i < cursor->image.height; i++) { 90b0f08536531a drivers/video/tdfxfb.c Krzysztof Helt 2007-10-16 1121 int h = 0; 90b0f08536531a drivers/video/tdfxfb.c Krzysztof Helt 2007-10-16 1122 int j = (cursor->image.width + 7) >> 3; ^1da177e4c3f41 drivers/video/tdfxfb.c Linus Torvalds 2005-04-16 1123 ^1da177e4c3f41 drivers/video/tdfxfb.c Linus Torvalds 2005-04-16 1124 for (; j > 0; j--) { 90b0f08536531a drivers/video/tdfxfb.c Krzysztof Helt 2007-10-16 1125 u8 data = *mask ^ *bitmap; 90b0f08536531a drivers/video/tdfxfb.c Krzysztof Helt 2007-10-16 1126 if (cursor->rop == ROP_COPY) 90b0f08536531a drivers/video/tdfxfb.c Krzysztof Helt 2007-10-16 1127 data = *mask & *bitmap; 90b0f08536531a drivers/video/tdfxfb.c Krzysztof Helt 2007-10-16 1128 /* Pattern 0. Copy the cursor mask to it */ 90b0f08536531a drivers/video/tdfxfb.c Krzysztof Helt 2007-10-16 1129 fb_writeb(*mask, cursorbase + h); ^1da177e4c3f41 drivers/video/tdfxfb.c Linus Torvalds 2005-04-16 1130 mask++; 90b0f08536531a drivers/video/tdfxfb.c Krzysztof Helt 2007-10-16 1131 /* Pattern 1. Copy the cursor bitmap to it */ 90b0f08536531a drivers/video/tdfxfb.c Krzysztof Helt 2007-10-16 1132 fb_writeb(data, cursorbase + h + 8); 90b0f08536531a drivers/video/tdfxfb.c Krzysztof Helt 2007-10-16 1133 bitmap++; ^1da177e4c3f41 drivers/video/tdfxfb.c Linus Torvalds 2005-04-16 1134 h++; ^1da177e4c3f41 drivers/video/tdfxfb.c Linus Torvalds 2005-04-16 1135 } 90b0f08536531a drivers/video/tdfxfb.c Krzysztof Helt 2007-10-16 1136 cursorbase += 16; ^1da177e4c3f41 drivers/video/tdfxfb.c Linus Torvalds 2005-04-16 1137 } ^1da177e4c3f41 drivers/video/tdfxfb.c Linus Torvalds 2005-04-16 1138 } ^1da177e4c3f41 drivers/video/tdfxfb.c Linus Torvalds 2005-04-16 1139 return 0; ^1da177e4c3f41 drivers/video/tdfxfb.c Linus Torvalds 2005-04-16 1140 } ^1da177e4c3f41 drivers/video/tdfxfb.c Linus Torvalds 2005-04-16 1141 :::::: The code at line 1118 was first introduced by commit :::::: 90b0f08536531abbbe7b5d4944792da08cadde01 tdfxfb: hardware cursor :::::: TO: Krzysztof Helt :::::: CC: Linus Torvalds -- 0-DAY CI Kernel Test Service https://01.org/lkp