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Message-ID: <202210100209.tR2Iqbqk-lkp@intel.com>
Date: Mon, 10 Oct 2022 02:40:17 +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/pvr2fb.c:800:9: 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-s053-20221009
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
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/pvr2fb.c:336:17: sparse: sparse: cast removes address space '__iomem' of expression
drivers/video/fbdev/pvr2fb.c:336:17: sparse: sparse: cast removes address space '__iomem' of expression
drivers/video/fbdev/pvr2fb.c:338:31: sparse: sparse: cast removes address space '__iomem' of expression
drivers/video/fbdev/pvr2fb.c:345:17: sparse: sparse: cast removes address space '__iomem' of expression
drivers/video/fbdev/pvr2fb.c:347:17: sparse: sparse: cast removes address space '__iomem' of expression
drivers/video/fbdev/pvr2fb.c:349:17: sparse: sparse: cast removes address space '__iomem' of expression
drivers/video/fbdev/pvr2fb.c:540:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/video/fbdev/pvr2fb.c:541:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/video/fbdev/pvr2fb.c:560:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/video/fbdev/pvr2fb.c:569:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/video/fbdev/pvr2fb.c:573:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/video/fbdev/pvr2fb.c:574:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/video/fbdev/pvr2fb.c:579:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/video/fbdev/pvr2fb.c:580:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/video/fbdev/pvr2fb.c:581:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/video/fbdev/pvr2fb.c:584:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/video/fbdev/pvr2fb.c:585:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/video/fbdev/pvr2fb.c:588:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/video/fbdev/pvr2fb.c:591:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/video/fbdev/pvr2fb.c:595:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/video/fbdev/pvr2fb.c:595:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/video/fbdev/pvr2fb.c:596:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/video/fbdev/pvr2fb.c:600:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/video/fbdev/pvr2fb.c:612:19: sparse: sparse: cast removes address space '__iomem' of expression
drivers/video/fbdev/pvr2fb.c:614:17: sparse: sparse: cast removes address space '__iomem' of expression
drivers/video/fbdev/pvr2fb.c:616:17: sparse: sparse: cast removes address space '__iomem' of expression
>> drivers/video/fbdev/pvr2fb.c:800:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const * @@ got char [noderef] __iomem *screen_base @@
drivers/video/fbdev/pvr2fb.c:800:9: sparse: expected void const *
drivers/video/fbdev/pvr2fb.c:800:9: sparse: got char [noderef] __iomem *screen_base
>> drivers/video/fbdev/pvr2fb.c:800:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const * @@ got char [noderef] __iomem *screen_base @@
drivers/video/fbdev/pvr2fb.c:800:9: sparse: expected void const *
drivers/video/fbdev/pvr2fb.c:800:9: sparse: got char [noderef] __iomem *screen_base
drivers/video/fbdev/pvr2fb.c:800:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void * @@ got char [noderef] __iomem *screen_base @@
drivers/video/fbdev/pvr2fb.c:800:9: sparse: expected void *
drivers/video/fbdev/pvr2fb.c:800:9: sparse: got char [noderef] __iomem *screen_base
drivers/video/fbdev/pvr2fb.c:832:15: sparse: sparse: cast removes address space '__iomem' of expression
drivers/video/fbdev/pvr2fb.c:1071:11: sparse: sparse: Using plain integer as NULL pointer
drivers/video/fbdev/pvr2fb.c:233:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/video/fbdev/pvr2fb.c:233:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/video/fbdev/pvr2fb.c:240:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/video/fbdev/pvr2fb.c:240:9: sparse: sparse: cast removes address space '__iomem' of expression
vim +800 drivers/video/fbdev/pvr2fb.c
0f5a5712ad1e3b drivers/video/fbdev/pvr2fb.c Bartlomiej Zolnierkiewicz 2019-06-07 761
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 762 /**
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 763 * pvr2fb_common_init
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 764 *
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 765 * Common init code for the PVR2 chips.
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 766 *
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 767 * This mostly takes care of the common aspects of the fb setup and
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 768 * registration. It's expected that the board-specific init code has
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 769 * already setup pvr2_fix with something meaningful at this point.
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 770 *
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 771 * Device info reporting is also done here, as well as picking a sane
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 772 * default from the modedb. For board-specific modelines, simply define
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 773 * a per-board modedb.
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 774 *
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 775 * Also worth noting is that the cable and video output types are likely
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 776 * always going to be VGA for the PCI-based PVR2 boards, but we leave this
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 777 * in for flexibility anyways. Who knows, maybe someone has tv-out on a
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 778 * PCI-based version of these things ;-)
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 779 */
0f5a5712ad1e3b drivers/video/fbdev/pvr2fb.c Bartlomiej Zolnierkiewicz 2019-06-07 780 static int __maybe_unused pvr2fb_common_init(void)
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 781 {
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 782 struct pvr2fb_par *par = currentpar;
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 783 unsigned long modememused, rev;
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 784
4bdc0d676a6431 drivers/video/fbdev/pvr2fb.c Christoph Hellwig 2020-01-06 785 fb_info->screen_base = ioremap(pvr2_fix.smem_start,
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 786 pvr2_fix.smem_len);
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 787
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 788 if (!fb_info->screen_base) {
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 789 printk(KERN_ERR "pvr2fb: Failed to remap smem space\n");
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 790 goto out_err;
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 791 }
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 792
4bdc0d676a6431 drivers/video/fbdev/pvr2fb.c Christoph Hellwig 2020-01-06 793 par->mmio_base = ioremap(pvr2_fix.mmio_start,
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 794 pvr2_fix.mmio_len);
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 795 if (!par->mmio_base) {
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 796 printk(KERN_ERR "pvr2fb: Failed to remap mmio space\n");
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 797 goto out_err;
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 798 }
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 799
d2b06a8b17f96b drivers/video/pvr2fb.c Paul Mundt 2006-09-27 @800 fb_memset(fb_info->screen_base, 0, pvr2_fix.smem_len);
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 801
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 802 pvr2_fix.ypanstep = nopan ? 0 : 1;
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 803 pvr2_fix.ywrapstep = nowrap ? 0 : 1;
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 804
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 805 fb_info->fbops = &pvr2fb_ops;
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 806 fb_info->fix = pvr2_fix;
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 807 fb_info->par = currentpar;
9cd1c67434544b drivers/video/pvr2fb.c Antonino A. Daplas 2007-08-10 808 fb_info->pseudo_palette = currentpar->palette;
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 809 fb_info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN;
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 810
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 811 if (video_output == VO_VGA)
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 812 defmode = DEFMODE_VGA;
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 813
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 814 if (!mode_option)
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 815 mode_option = "640x480@60";
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 816
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 817 if (!fb_find_mode(&fb_info->var, fb_info, mode_option, pvr2_modedb,
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 818 NUM_TOTAL_MODES, &pvr2_modedb[defmode], 16))
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 819 fb_info->var = pvr2_var;
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 820
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 821 fb_alloc_cmap(&fb_info->cmap, 256, 0);
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 822
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 823 if (register_framebuffer(fb_info) < 0)
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 824 goto out_err;
306c869c237a66 drivers/video/pvr2fb.c Adrian McMenamin 2007-08-10 825 /*Must write PIXDEPTH to register before anything is displayed - so force init */
306c869c237a66 drivers/video/pvr2fb.c Adrian McMenamin 2007-08-10 826 pvr2_init_display(fb_info);
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 827
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 828 modememused = get_line_length(fb_info->var.xres_virtual,
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 829 fb_info->var.bits_per_pixel);
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 830 modememused *= fb_info->var.yres_virtual;
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 831
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 832 rev = fb_readl(par->mmio_base + 0x04);
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 833
31b6780c15a4e3 drivers/video/pvr2fb.c Joe Perches 2013-09-19 834 fb_info(fb_info, "%s (rev %ld.%ld) frame buffer device, using %ldk/%ldk of video memory\n",
31b6780c15a4e3 drivers/video/pvr2fb.c Joe Perches 2013-09-19 835 fb_info->fix.id, (rev >> 4) & 0x0f, rev & 0x0f,
31b6780c15a4e3 drivers/video/pvr2fb.c Joe Perches 2013-09-19 836 modememused >> 10,
31b6780c15a4e3 drivers/video/pvr2fb.c Joe Perches 2013-09-19 837 (unsigned long)(fb_info->fix.smem_len >> 10));
31b6780c15a4e3 drivers/video/pvr2fb.c Joe Perches 2013-09-19 838 fb_info(fb_info, "Mode %dx%d-%d pitch = %ld cable: %s video output: %s\n",
31b6780c15a4e3 drivers/video/pvr2fb.c Joe Perches 2013-09-19 839 fb_info->var.xres, fb_info->var.yres,
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 840 fb_info->var.bits_per_pixel,
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 841 get_line_length(fb_info->var.xres, fb_info->var.bits_per_pixel),
0f5a5712ad1e3b drivers/video/fbdev/pvr2fb.c Bartlomiej Zolnierkiewicz 2019-06-07 842 pvr2_get_param_name(cables, cable_type, 3),
0f5a5712ad1e3b drivers/video/fbdev/pvr2fb.c Bartlomiej Zolnierkiewicz 2019-06-07 843 pvr2_get_param_name(outputs, video_output, 3));
^1da177e4c3f41 drivers/video/pvr2fb.c Linus Torvalds 2005-04-16 844
:::::: The code at line 800 was first introduced by commit
:::::: d2b06a8b17f96b75fa1e8e7765cb900c99fd80fb video: Update pvr2fb for sq API changes.
:::::: TO: Paul Mundt <lethal@...ux-sh.org>
:::::: CC: Paul Mundt <lethal@...ux-sh.org>
--
0-DAY CI Kernel Test Service
https://01.org/lkp
View attachment "config" of type "text/plain" (167757 bytes)
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