* [linux-next:master 4916/7526] drivers/video/fbdev/hgafb.c:496:25: sparse: sparse: incorrect type in argument 1 (different address spaces)
@ 2022-02-24 1:47 kernel test robot
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From: kernel test robot @ 2022-02-24 1:47 UTC (permalink / raw)
To: Kees Cook; +Cc: kbuild-all, Linux Memory Management List
tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head: 196d330d7fb1e7cc0d85641c89ce4602cb36f12e
commit: 938a000e3f9bead24ea753286b3e4d2423275c9e [4916/7526] fortify: Detect struct member overflows in memmove() at compile-time
config: i386-randconfig-s001 (https://download.01.org/0day-ci/archive/20220224/202202240946.dxiu4YCc-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/next/linux-next.git/commit/?id=938a000e3f9bead24ea753286b3e4d2423275c9e
git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
git fetch --no-tags linux-next master
git checkout 938a000e3f9bead24ea753286b3e4d2423275c9e
# 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/video/fbdev/
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
sparse warnings: (new ones prefixed by >>)
>> drivers/video/fbdev/hgafb.c:496:25: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const * @@ got unsigned char [noderef] [usertype] __iomem *[assigned] dest @@
drivers/video/fbdev/hgafb.c:496:25: sparse: expected void const *
drivers/video/fbdev/hgafb.c:496:25: sparse: got unsigned char [noderef] [usertype] __iomem *[assigned] dest
>> drivers/video/fbdev/hgafb.c:496:25: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const * @@ got unsigned char [noderef] [usertype] __iomem *[assigned] src @@
drivers/video/fbdev/hgafb.c:496:25: sparse: expected void const *
drivers/video/fbdev/hgafb.c:496:25: sparse: got unsigned char [noderef] [usertype] __iomem *[assigned] src
>> drivers/video/fbdev/hgafb.c:496:25: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const * @@ got unsigned char [noderef] [usertype] __iomem *[assigned] dest @@
drivers/video/fbdev/hgafb.c:496:25: sparse: expected void const *
drivers/video/fbdev/hgafb.c:496:25: sparse: got unsigned char [noderef] [usertype] __iomem *[assigned] dest
>> drivers/video/fbdev/hgafb.c:496:25: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const * @@ got unsigned char [noderef] [usertype] __iomem *[assigned] src @@
drivers/video/fbdev/hgafb.c:496:25: sparse: expected void const *
drivers/video/fbdev/hgafb.c:496:25: sparse: got unsigned char [noderef] [usertype] __iomem *[assigned] src
>> drivers/video/fbdev/hgafb.c:496:25: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void * @@ got unsigned char [noderef] [usertype] __iomem *[assigned] dest @@
drivers/video/fbdev/hgafb.c:496:25: sparse: expected void *
drivers/video/fbdev/hgafb.c:496:25: sparse: got unsigned char [noderef] [usertype] __iomem *[assigned] dest
drivers/video/fbdev/hgafb.c:496:25: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void const * @@ got unsigned char [noderef] [usertype] __iomem *[assigned] src @@
drivers/video/fbdev/hgafb.c:496:25: sparse: expected void const *
drivers/video/fbdev/hgafb.c:496:25: sparse: got unsigned char [noderef] [usertype] __iomem *[assigned] src
drivers/video/fbdev/hgafb.c:507:25: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const * @@ got unsigned char [noderef] [usertype] __iomem *[assigned] dest @@
drivers/video/fbdev/hgafb.c:507:25: sparse: expected void const *
drivers/video/fbdev/hgafb.c:507:25: sparse: got unsigned char [noderef] [usertype] __iomem *[assigned] dest
drivers/video/fbdev/hgafb.c:507:25: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const * @@ got unsigned char [noderef] [usertype] __iomem *[assigned] src @@
drivers/video/fbdev/hgafb.c:507:25: sparse: expected void const *
drivers/video/fbdev/hgafb.c:507:25: sparse: got unsigned char [noderef] [usertype] __iomem *[assigned] src
drivers/video/fbdev/hgafb.c:507:25: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const * @@ got unsigned char [noderef] [usertype] __iomem *[assigned] dest @@
drivers/video/fbdev/hgafb.c:507:25: sparse: expected void const *
drivers/video/fbdev/hgafb.c:507:25: sparse: got unsigned char [noderef] [usertype] __iomem *[assigned] dest
drivers/video/fbdev/hgafb.c:507:25: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const * @@ got unsigned char [noderef] [usertype] __iomem *[assigned] src @@
drivers/video/fbdev/hgafb.c:507:25: sparse: expected void const *
drivers/video/fbdev/hgafb.c:507:25: sparse: got unsigned char [noderef] [usertype] __iomem *[assigned] src
drivers/video/fbdev/hgafb.c:507:25: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void * @@ got unsigned char [noderef] [usertype] __iomem *[assigned] dest @@
drivers/video/fbdev/hgafb.c:507:25: sparse: expected void *
drivers/video/fbdev/hgafb.c:507:25: sparse: got unsigned char [noderef] [usertype] __iomem *[assigned] dest
drivers/video/fbdev/hgafb.c:507:25: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void const * @@ got unsigned char [noderef] [usertype] __iomem *[assigned] src @@
drivers/video/fbdev/hgafb.c:507:25: sparse: expected void const *
drivers/video/fbdev/hgafb.c:507:25: sparse: got unsigned char [noderef] [usertype] __iomem *[assigned] src
vim +496 drivers/video/fbdev/hgafb.c
^1da177e4c3f41 drivers/video/hgafb.c Linus Torvalds 2005-04-16 482
^1da177e4c3f41 drivers/video/hgafb.c Linus Torvalds 2005-04-16 483 static void hgafb_copyarea(struct fb_info *info, const struct fb_copyarea *area)
^1da177e4c3f41 drivers/video/hgafb.c Linus Torvalds 2005-04-16 484 {
^1da177e4c3f41 drivers/video/hgafb.c Linus Torvalds 2005-04-16 485 u_int rows, y1, y2;
^1da177e4c3f41 drivers/video/hgafb.c Linus Torvalds 2005-04-16 486 u8 __iomem *src;
^1da177e4c3f41 drivers/video/hgafb.c Linus Torvalds 2005-04-16 487 u8 __iomem *dest;
^1da177e4c3f41 drivers/video/hgafb.c Linus Torvalds 2005-04-16 488
^1da177e4c3f41 drivers/video/hgafb.c Linus Torvalds 2005-04-16 489 if (area->dy <= area->sy) {
^1da177e4c3f41 drivers/video/hgafb.c Linus Torvalds 2005-04-16 490 y1 = area->sy;
^1da177e4c3f41 drivers/video/hgafb.c Linus Torvalds 2005-04-16 491 y2 = area->dy;
^1da177e4c3f41 drivers/video/hgafb.c Linus Torvalds 2005-04-16 492
^1da177e4c3f41 drivers/video/hgafb.c Linus Torvalds 2005-04-16 493 for (rows = area->height; rows--; ) {
^1da177e4c3f41 drivers/video/hgafb.c Linus Torvalds 2005-04-16 494 src = rowaddr(info, y1) + (area->sx >> 3);
^1da177e4c3f41 drivers/video/hgafb.c Linus Torvalds 2005-04-16 495 dest = rowaddr(info, y2) + (area->dx >> 3);
529ed806d4540d drivers/video/hgafb.c Brent Cook 2010-12-31 @496 memmove(dest, src, (area->width >> 3));
^1da177e4c3f41 drivers/video/hgafb.c Linus Torvalds 2005-04-16 497 y1++;
^1da177e4c3f41 drivers/video/hgafb.c Linus Torvalds 2005-04-16 498 y2++;
^1da177e4c3f41 drivers/video/hgafb.c Linus Torvalds 2005-04-16 499 }
^1da177e4c3f41 drivers/video/hgafb.c Linus Torvalds 2005-04-16 500 } else {
^1da177e4c3f41 drivers/video/hgafb.c Linus Torvalds 2005-04-16 501 y1 = area->sy + area->height - 1;
^1da177e4c3f41 drivers/video/hgafb.c Linus Torvalds 2005-04-16 502 y2 = area->dy + area->height - 1;
^1da177e4c3f41 drivers/video/hgafb.c Linus Torvalds 2005-04-16 503
^1da177e4c3f41 drivers/video/hgafb.c Linus Torvalds 2005-04-16 504 for (rows = area->height; rows--;) {
^1da177e4c3f41 drivers/video/hgafb.c Linus Torvalds 2005-04-16 505 src = rowaddr(info, y1) + (area->sx >> 3);
^1da177e4c3f41 drivers/video/hgafb.c Linus Torvalds 2005-04-16 506 dest = rowaddr(info, y2) + (area->dx >> 3);
529ed806d4540d drivers/video/hgafb.c Brent Cook 2010-12-31 507 memmove(dest, src, (area->width >> 3));
^1da177e4c3f41 drivers/video/hgafb.c Linus Torvalds 2005-04-16 508 y1--;
^1da177e4c3f41 drivers/video/hgafb.c Linus Torvalds 2005-04-16 509 y2--;
^1da177e4c3f41 drivers/video/hgafb.c Linus Torvalds 2005-04-16 510 }
^1da177e4c3f41 drivers/video/hgafb.c Linus Torvalds 2005-04-16 511 }
^1da177e4c3f41 drivers/video/hgafb.c Linus Torvalds 2005-04-16 512 }
^1da177e4c3f41 drivers/video/hgafb.c Linus Torvalds 2005-04-16 513
:::::: The code at line 496 was first introduced by commit
:::::: 529ed806d4540d23ca2f68b28c3715d1566fc3ac video: Fix the HGA framebuffer driver
:::::: TO: Brent Cook <busterb@gmail.com>
:::::: CC: Paul Mundt <lethal@linux-sh.org>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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2022-02-24 1:47 [linux-next:master 4916/7526] drivers/video/fbdev/hgafb.c:496:25: sparse: sparse: incorrect type in argument 1 (different address spaces) kernel test robot
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