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Date: Sun, 9 Oct 2022 07:31:13 +0800
From: kernel test robot <lkp@...el.com>
To: Kees Cook <keescook@...omium.org>
Cc: kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: drivers/video/fbdev/kyro/fbdev.c:733:9: sparse: sparse: incorrect
type in argument 1 (different address spaces)
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: a6afa4199d3d038fbfdff5511f7523b0e30cb774
commit: 28e77cc1c0686621a4d416f599cee5ab369daa0a fortify: Detect struct member overflows in memset() at compile-time
date: 8 months ago
config: mips-randconfig-s032-20221009
compiler: mips64el-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/kyro/
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>
sparse warnings: (new ones prefixed by >>)
>> 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 +733 drivers/video/fbdev/kyro/fbdev.c
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 669
48c68c4f1b5424 drivers/video/kyro/fbdev.c Greg Kroah-Hartman 2012-12-21 670 static int kyrofb_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 671 {
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 672 struct fb_info *info;
a26968df0110bc drivers/video/kyro/fbdev.c Antonino A. Daplas 2006-01-09 673 struct kyrofb_info *currentpar;
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 674 unsigned long size;
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 675 int err;
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 676
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 677 if ((err = pci_enable_device(pdev))) {
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 678 printk(KERN_WARNING "kyrofb: Can't enable pdev: %d\n", err);
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 679 return err;
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 680 }
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 681
a26968df0110bc drivers/video/kyro/fbdev.c Antonino A. Daplas 2006-01-09 682 info = framebuffer_alloc(sizeof(struct kyrofb_info), &pdev->dev);
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 683 if (!info)
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 684 return -ENOMEM;
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 685
a26968df0110bc drivers/video/kyro/fbdev.c Antonino A. Daplas 2006-01-09 686 currentpar = info->par;
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 687
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 688 kyro_fix.smem_start = pci_resource_start(pdev, 0);
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 689 kyro_fix.smem_len = pci_resource_len(pdev, 0);
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 690 kyro_fix.mmio_start = pci_resource_start(pdev, 1);
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 691 kyro_fix.mmio_len = pci_resource_len(pdev, 1);
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 692
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 693 currentpar->regbase = deviceInfo.pSTGReg =
4bdc0d676a6431 drivers/video/fbdev/kyro/fbdev.c Christoph Hellwig 2020-01-06 694 ioremap(kyro_fix.mmio_start, kyro_fix.mmio_len);
9e517ac88b2443 drivers/video/fbdev/kyro/fbdev.c Luis R. Rodriguez 2015-08-24 695 if (!currentpar->regbase)
9e517ac88b2443 drivers/video/fbdev/kyro/fbdev.c Luis R. Rodriguez 2015-08-24 696 goto out_free_fb;
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 697
9e517ac88b2443 drivers/video/fbdev/kyro/fbdev.c Luis R. Rodriguez 2015-08-24 698 info->screen_base = pci_ioremap_wc_bar(pdev, 0);
9e517ac88b2443 drivers/video/fbdev/kyro/fbdev.c Luis R. Rodriguez 2015-08-24 699 if (!info->screen_base)
9e517ac88b2443 drivers/video/fbdev/kyro/fbdev.c Luis R. Rodriguez 2015-08-24 700 goto out_unmap_regs;
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 701
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 702 if (!nomtrr)
9e517ac88b2443 drivers/video/fbdev/kyro/fbdev.c Luis R. Rodriguez 2015-08-24 703 currentpar->wc_cookie = arch_phys_wc_add(kyro_fix.smem_start,
9e517ac88b2443 drivers/video/fbdev/kyro/fbdev.c Luis R. Rodriguez 2015-08-24 704 kyro_fix.smem_len);
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 705
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 706 kyro_fix.ypanstep = nopan ? 0 : 1;
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 707 kyro_fix.ywrapstep = nowrap ? 0 : 1;
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 708
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 709 info->fbops = &kyrofb_ops;
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 710 info->fix = kyro_fix;
a26968df0110bc drivers/video/kyro/fbdev.c Antonino A. Daplas 2006-01-09 711 info->pseudo_palette = currentpar->palette;
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 712 info->flags = FBINFO_DEFAULT;
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 713
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 714 SetCoreClockPLL(deviceInfo.pSTGReg, pdev);
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 715
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 716 deviceInfo.ulNextFreeVidMem = 0;
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 717 deviceInfo.ulOverlayOffset = 0;
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 718
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 719 /* This should give a reasonable default video mode */
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 720 if (!fb_find_mode(&info->var, info, mode_option, kyro_modedb,
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 721 NUM_TOTAL_MODES, &kyro_modedb[VMODE_1024_768_75], 32))
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 722 info->var = kyro_var;
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 723
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 724 fb_alloc_cmap(&info->cmap, 256, 0);
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 725
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 726 kyrofb_set_par(info);
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 727 kyrofb_check_var(&info->var, info);
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 728
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 729 size = get_line_length(info->var.xres_virtual,
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 730 info->var.bits_per_pixel);
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 731 size *= info->var.yres_virtual;
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 732
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 @733 fb_memset(info->screen_base, 0, size);
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 734
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 735 if (register_framebuffer(info) < 0)
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 736 goto out_unmap;
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 737
31b6780c15a4e3 drivers/video/kyro/fbdev.c Joe Perches 2013-09-19 738 fb_info(info, "%s frame buffer device, at %dx%d@%d using %ldk/%ldk of VRAM\n",
31b6780c15a4e3 drivers/video/kyro/fbdev.c Joe Perches 2013-09-19 739 info->fix.id,
31b6780c15a4e3 drivers/video/kyro/fbdev.c Joe Perches 2013-09-19 740 info->var.xres, info->var.yres, info->var.bits_per_pixel,
31b6780c15a4e3 drivers/video/kyro/fbdev.c Joe Perches 2013-09-19 741 size >> 10, (unsigned long)info->fix.smem_len >> 10);
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 742
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 743 pci_set_drvdata(pdev, info);
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 744
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 745 return 0;
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 746
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 747 out_unmap:
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 748 iounmap(info->screen_base);
9e517ac88b2443 drivers/video/fbdev/kyro/fbdev.c Luis R. Rodriguez 2015-08-24 749 out_unmap_regs:
9e517ac88b2443 drivers/video/fbdev/kyro/fbdev.c Luis R. Rodriguez 2015-08-24 750 iounmap(currentpar->regbase);
9e517ac88b2443 drivers/video/fbdev/kyro/fbdev.c Luis R. Rodriguez 2015-08-24 751 out_free_fb:
a26968df0110bc drivers/video/kyro/fbdev.c Antonino A. Daplas 2006-01-09 752 framebuffer_release(info);
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 753
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 754 return -EINVAL;
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 755 }
^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 756
:::::: The code at line 733 was first introduced by commit
:::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2
:::::: TO: Linus Torvalds <torvalds@...970.osdl.org>
:::::: CC: Linus Torvalds <torvalds@...970.osdl.org>
--
0-DAY CI Kernel Test Service
https://01.org/lkp
View attachment "config" of type "text/plain" (158661 bytes)
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