drivers/video/fbdev/cirrusfb.c:1852:28: sparse: sparse: incorrect type in argument 1 (different address spaces)

From: kernel test robot
Date: Mon Dec 11 2023 - 20:42:40 EST

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tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: a39b6ac3781d46ba18193c9dbb2110f31e9bffe9
commit: ded2ee36313c941f1a12b6f85cde295b575264ae openrisc: Add pci bus support
date: 1 year, 4 months ago
config: openrisc-randconfig-r112-20231116 (https://download.01.org/0day-ci/archive/20231212/202312120922.hQZ8Qe8k-lkp@xxxxxxxxx/config)
compiler: or1k-linux-gcc (GCC) 13.2.0
reproduce: (https://download.01.org/0day-ci/archive/20231212/202312120922.hQZ8Qe8k-lkp@xxxxxxxxx/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202312120922.hQZ8Qe8k-lkp@xxxxxxxxx/

sparse warnings: (new ones prefixed by >>)
drivers/video/fbdev/cirrusfb.c:866:30: sparse: sparse: cast removes address space '__iomem' of expression
drivers/video/fbdev/cirrusfb.c:867:38: sparse: sparse: cast removes address space '__iomem' of expression
drivers/video/fbdev/cirrusfb.c:871:40: sparse: sparse: cast removes address space '__iomem' of expression
drivers/video/fbdev/cirrusfb.c:873:25: sparse: sparse: cast removes address space '__iomem' of expression
drivers/video/fbdev/cirrusfb.c:876:17: sparse: sparse: cast removes address space '__iomem' of expression
drivers/video/fbdev/cirrusfb.c:877:17: sparse: sparse: cast removes address space '__iomem' of expression
drivers/video/fbdev/cirrusfb.c:878:27: sparse: sparse: cast removes address space '__iomem' of expression
drivers/video/fbdev/cirrusfb.c:879:29: sparse: sparse: cast removes address space '__iomem' of expression
drivers/video/fbdev/cirrusfb.c:1245:17: sparse: sparse: cast removes address space '__iomem' of expression
drivers/video/fbdev/cirrusfb.c:1246:17: sparse: sparse: cast removes address space '__iomem' of expression
drivers/video/fbdev/cirrusfb.c:1247:17: sparse: sparse: cast removes address space '__iomem' of expression
>> drivers/video/fbdev/cirrusfb.c:1852:28: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *dest @@ got char [noderef] __iomem *screen_base @@
drivers/video/fbdev/cirrusfb.c:1852:28: sparse: expected void *dest
drivers/video/fbdev/cirrusfb.c:1852:28: sparse: got char [noderef] __iomem *screen_base

vim +1852 drivers/video/fbdev/cirrusfb.c

^1da177e4c3f415 drivers/video/cirrusfb.c Linus Torvalds 2005-04-16 1809
8503df65976d0f8 drivers/video/cirrusfb.c Krzysztof Helt 2007-10-16 1810 static void cirrusfb_imageblit(struct fb_info *info,
8503df65976d0f8 drivers/video/cirrusfb.c Krzysztof Helt 2007-10-16 1811 const struct fb_image *image)
^1da177e4c3f415 drivers/video/cirrusfb.c Linus Torvalds 2005-04-16 1812 {
^1da177e4c3f415 drivers/video/cirrusfb.c Linus Torvalds 2005-04-16 1813 struct cirrusfb_info *cinfo = info->par;
7cade31cabec33c drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1814 unsigned char op = (info->var.bits_per_pixel == 24) ? 0xc : 0x4;
^1da177e4c3f415 drivers/video/cirrusfb.c Linus Torvalds 2005-04-16 1815
9e8480625332071 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1816 if (info->state != FBINFO_STATE_RUNNING)
9e8480625332071 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1817 return;
df3aafd57d590d6 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1818 /* Alpine/SD64 does not work at 24bpp ??? */
df3aafd57d590d6 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1819 if (info->flags & FBINFO_HWACCEL_DISABLED || image->depth != 1)
df3aafd57d590d6 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1820 cfb_imageblit(info, image);
df3aafd57d590d6 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1821 else if ((cinfo->btype == BT_ALPINE || cinfo->btype == BT_SD64) &&
df3aafd57d590d6 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1822 op == 0xc)
^1da177e4c3f415 drivers/video/cirrusfb.c Linus Torvalds 2005-04-16 1823 cfb_imageblit(info, image);
9e8480625332071 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1824 else {
9e8480625332071 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1825 unsigned size = ((image->width + 7) >> 3) * image->height;
9e8480625332071 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1826 int m = info->var.bits_per_pixel;
9e8480625332071 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1827 u32 fg, bg;
9e8480625332071 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1828
9e8480625332071 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1829 if (info->var.bits_per_pixel == 8) {
9e8480625332071 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1830 fg = image->fg_color;
9e8480625332071 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1831 bg = image->bg_color;
9e8480625332071 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1832 } else {
9e8480625332071 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1833 fg = ((u32 *)(info->pseudo_palette))[image->fg_color];
9e8480625332071 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1834 bg = ((u32 *)(info->pseudo_palette))[image->bg_color];
9e8480625332071 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1835 }
7cade31cabec33c drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1836 if (info->var.bits_per_pixel == 24) {
7cade31cabec33c drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1837 /* clear background first */
7cade31cabec33c drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1838 cirrusfb_RectFill(cinfo->regbase,
7cade31cabec33c drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1839 info->var.bits_per_pixel,
7cade31cabec33c drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1840 (image->dx * m) / 8, image->dy,
7cade31cabec33c drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1841 (image->width * m) / 8,
7cade31cabec33c drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1842 image->height,
7cade31cabec33c drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1843 bg, bg,
7cade31cabec33c drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1844 info->fix.line_length, 0x40);
7cade31cabec33c drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1845 }
9e8480625332071 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1846 cirrusfb_RectFill(cinfo->regbase,
9e8480625332071 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1847 info->var.bits_per_pixel,
9e8480625332071 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1848 (image->dx * m) / 8, image->dy,
9e8480625332071 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1849 (image->width * m) / 8, image->height,
9e8480625332071 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1850 fg, bg,
7cade31cabec33c drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1851 info->fix.line_length, op);
9e8480625332071 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 @1852 memcpy(info->screen_base, image->data, size);
9e8480625332071 drivers/video/cirrusfb.c Krzysztof Helt 2009-03-31 1853 }
^1da177e4c3f415 drivers/video/cirrusfb.c Linus Torvalds 2005-04-16 1854 }
^1da177e4c3f415 drivers/video/cirrusfb.c Linus Torvalds 2005-04-16 1855

:::::: The code at line 1852 was first introduced by commit
:::::: 9e848062533207130667f6eaa748549367ccbedf cirrusfb: add imageblit function

:::::: TO: Krzysztof Helt <krzysztof.h1@xxxxx>
:::::: CC: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>

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Next in thread: kernel test robot: "drivers/video/fbdev/cirrusfb.c:1852:28: sparse: sparse: incorrect type in argument 1 (different address spaces)"
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