Hi René, kernel test robot noticed the following build warnings:
[auto build test WARNING on drm-misc/drm-misc-next] [also build test WARNING on drm/drm-next drm-i915/for-linux-next drm-i915/for-linux-next-fixes drm-tip/drm-tip linus/master v6.19-rc1 next-20251219] [cannot apply to daeinki-drm-exynos/exynos-drm-next] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Ren-Rebe/drm-ast-Swap-framebuffer-writes-on-big-endian-machines/20251213-040713 base: https://gitlab.freedesktop.org/drm/misc/kernel.git drm-misc-next patch link: https://lore.kernel.org/r/20251212.210504.1355099120650239629.rene%40exactco.de patch subject: [PATCH V4] drm/ast: Swap framebuffer writes on big-endian machines config: openrisc-randconfig-r122-20251217 (https://download.01.org/0day-ci/archive/20251221/[email protected]/config) compiler: or1k-linux-gcc (GCC) 11.5.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251221/[email protected]/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 <[email protected]> | Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/ sparse warnings: (new ones prefixed by >>) >> drivers/gpu/drm/ast/ast_cursor.c:103:24: sparse: sparse: incorrect type in >> argument 1 (different base types) @@ expected unsigned short [usertype] >> val @@ got restricted __be16 const [usertype] @@ drivers/gpu/drm/ast/ast_cursor.c:103:24: sparse: expected unsigned short [usertype] val drivers/gpu/drm/ast/ast_cursor.c:103:24: sparse: got restricted __be16 const [usertype] >> drivers/gpu/drm/ast/ast_cursor.c:103:24: sparse: sparse: cast from >> restricted __be16 >> drivers/gpu/drm/ast/ast_cursor.c:103:24: sparse: sparse: cast from >> restricted __be16 vim +103 drivers/gpu/drm/ast/ast_cursor.c 91 92 static void ast_set_cursor_image(struct ast_device *ast, const u8 *src, 93 unsigned int width, unsigned int height) 94 { 95 u8 __iomem *dst = ast_plane_vaddr(&ast->cursor_plane.base); 96 u32 csum = ast_cursor_calculate_checksum(src, width, height); 97 98 /* write pixel data */ 99 #if defined(__BIG_ENDIAN) 100 unsigned int i; 101 102 for (i = 0; i < AST_HWC_SIZE; i += 2) > 103 writew(swab16(*(const __be16 *)&src[i]), &dst[i]); 104 #else 105 memcpy_toio(dst, src, AST_HWC_SIZE); 106 #endif 107 108 /* write checksum + signature */ 109 dst += AST_HWC_SIZE; 110 writel(csum, dst); 111 writel(width, dst + AST_HWC_SIGNATURE_SizeX); 112 writel(height, dst + AST_HWC_SIGNATURE_SizeY); 113 writel(0, dst + AST_HWC_SIGNATURE_HOTSPOTX); 114 writel(0, dst + AST_HWC_SIGNATURE_HOTSPOTY); 115 } 116 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
