[kbuild-all] drivers/video/fbdev/kyro/fbdev.c:725:23: 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: 00e4db51259a5f936fec1424b884f029479d3981 commit: 80591e61a0f7e88deaada69844e4a31280c4a38f kbuild: tell sparse about the $ARCH date: 9 months ago config: s390-randconfig-s031-20200810 (attached as .config) compiler: s390-linux-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.2-141-g19506bc2-dirty git checkout 80591e61a0f7e88deaada69844e4a31280c4a38f # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=s390 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; sparse warnings: (new ones prefixed by >>) drivers/video/fbdev/kyro/fbdev.c:725:23: sparse: got char [noderef] <asn:2> *screen_base vim +725 drivers/video/fbdev/kyro/fbdev.c ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 661 48c68c4f1b5424 drivers/video/kyro/fbdev.c Greg Kroah-Hartman 2012-12-21 662 static int kyrofb_probe(struct pci_dev *pdev, const struct pci_device_id *ent) ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 663 { ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 664 struct fb_info *info; a26968df0110bc drivers/video/kyro/fbdev.c Antonino A. Daplas 2006-01-09 665 struct kyrofb_info *currentpar; ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 666 unsigned long size; ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 667 int err; ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 668 ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 669 if ((err = pci_enable_device(pdev))) { ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 670 printk(KERN_WARNING "kyrofb: Can't enable pdev: %d\n", err); ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 671 return err; ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 672 } ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 673 a26968df0110bc drivers/video/kyro/fbdev.c Antonino A. Daplas 2006-01-09 674 info = framebuffer_alloc(sizeof(struct kyrofb_info), &pdev->dev); ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 675 if (!info) ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 676 return -ENOMEM; ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 677 a26968df0110bc drivers/video/kyro/fbdev.c Antonino A. Daplas 2006-01-09 678 currentpar = info->par; ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 679 ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 680 kyro_fix.smem_start = pci_resource_start(pdev, 0); ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 681 kyro_fix.smem_len = pci_resource_len(pdev, 0); ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 682 kyro_fix.mmio_start = pci_resource_start(pdev, 1); ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 683 kyro_fix.mmio_len = pci_resource_len(pdev, 1); ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 684 ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 685 currentpar->regbase = deviceInfo.pSTGReg = ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 686 ioremap_nocache(kyro_fix.mmio_start, kyro_fix.mmio_len); 9e517ac88b2443 drivers/video/fbdev/kyro/fbdev.c Luis R. Rodriguez 2015-08-24 687 if (!currentpar->regbase) 9e517ac88b2443 drivers/video/fbdev/kyro/fbdev.c Luis R. Rodriguez 2015-08-24 688 goto out_free_fb; ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 689 9e517ac88b2443 drivers/video/fbdev/kyro/fbdev.c Luis R. Rodriguez 2015-08-24 690 info->screen_base = pci_ioremap_wc_bar(pdev, 0); 9e517ac88b2443 drivers/video/fbdev/kyro/fbdev.c Luis R. Rodriguez 2015-08-24 691 if (!info->screen_base) 9e517ac88b2443 drivers/video/fbdev/kyro/fbdev.c Luis R. Rodriguez 2015-08-24 692 goto out_unmap_regs; ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 693 ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 694 if (!nomtrr) 9e517ac88b2443 drivers/video/fbdev/kyro/fbdev.c Luis R. Rodriguez 2015-08-24 695 currentpar->wc_cookie = arch_phys_wc_add(kyro_fix.smem_start, 9e517ac88b2443 drivers/video/fbdev/kyro/fbdev.c Luis R. Rodriguez 2015-08-24 696 kyro_fix.smem_len); ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 697 ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 698 kyro_fix.ypanstep = nopan ? 0 : 1; ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 699 kyro_fix.ywrapstep = nowrap ? 0 : 1; ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 700 ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 701 info->fbops = &kyrofb_ops; ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 702 info->fix = kyro_fix; a26968df0110bc drivers/video/kyro/fbdev.c Antonino A. Daplas 2006-01-09 703 info->pseudo_palette = currentpar->palette; ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 704 info->flags = FBINFO_DEFAULT; ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 705 ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 706 SetCoreClockPLL(deviceInfo.pSTGReg, pdev); ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 707 ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 708 deviceInfo.ulNextFreeVidMem = 0; ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 709 deviceInfo.ulOverlayOffset = 0; ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 710 ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 711 /* This should give a reasonable default video mode */ ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 712 if (!fb_find_mode(&info->var, info, mode_option, kyro_modedb, ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 713 NUM_TOTAL_MODES, &kyro_modedb[VMODE_1024_768_75], 32)) ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 714 info->var = kyro_var; ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 715 ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 716 fb_alloc_cmap(&info->cmap, 256, 0); ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 717 ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 718 kyrofb_set_par(info); ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 719 kyrofb_check_var(&info->var, info); ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 720 ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 721 size = get_line_length(info->var.xres_virtual, ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 722 info->var.bits_per_pixel); ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 723 size *= info->var.yres_virtual; ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 724 ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 @725 fb_memset(info->screen_base, 0, size); ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 726 ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 727 if (register_framebuffer(info) < 0) ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 728 goto out_unmap; ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 729 31b6780c15a4e3 drivers/video/kyro/fbdev.c Joe Perches 2013-09-19 730 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 2013-09-19 731 info->fix.id, 31b6780c15a4e3 drivers/video/kyro/fbdev.c Joe Perches 2013-09-19 732 info->var.xres, info->var.yres, info->var.bits_per_pixel, 31b6780c15a4e3 drivers/video/kyro/fbdev.c Joe Perches 2013-09-19 733 size >> 10, (unsigned long)info->fix.smem_len >> 10); ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 734 ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 735 pci_set_drvdata(pdev, info); ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 736 ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 737 return 0; ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 738 ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 739 out_unmap: ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 740 iounmap(info->screen_base); 9e517ac88b2443 drivers/video/fbdev/kyro/fbdev.c Luis R. Rodriguez 2015-08-24 741 out_unmap_regs: 9e517ac88b2443 drivers/video/fbdev/kyro/fbdev.c Luis R. Rodriguez 2015-08-24 742 iounmap(currentpar->regbase); 9e517ac88b2443 drivers/video/fbdev/kyro/fbdev.c Luis R. Rodriguez 2015-08-24 743 out_free_fb: a26968df0110bc drivers/video/kyro/fbdev.c Antonino A. Daplas 2006-01-09 744 framebuffer_release(info); ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 745 ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 746 return -EINVAL; ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 747 } ^1da177e4c3f41 drivers/video/kyro/fbdev.c Linus Torvalds 2005-04-16 748 :::::: The code at line 725 was first introduced by commit :::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2 :::::: TO: Linus Torvalds <torvalds(a)ppc970.osdl.org&gt; :::::: CC: Linus Torvalds <torvalds(a)ppc970.osdl.org&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org