Hi, kernel test robot noticed the following build warnings:
[auto build test WARNING on drm-misc/drm-misc-next] [also build test WARNING on drm-tip/drm-tip linus/master v6.18-rc6 next-20251119] [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/ssrane_b23-ee-vjti-ac-in/fbdev-core-Fix-vmalloc-out-of-bounds-in-fb_imageblit/20251119-215054 base: git://anongit.freedesktop.org/drm/drm-misc drm-misc-next patch link: https://lore.kernel.org/r/20251119133821.89998-1-ssranevjti%40gmail.com patch subject: [PATCH] fbdev: core: Fix vmalloc-out-of-bounds in fb_imageblit config: nios2-randconfig-r073-20251120 (https://download.01.org/0day-ci/archive/20251120/[email protected]/config) compiler: nios2-linux-gcc (GCC) 10.5.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251120/[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]/ All warnings (new ones prefixed by >>): In file included from drivers/video/fbdev/core/cfbimgblt.c:17: drivers/video/fbdev/core/fb_imageblit.h: In function 'fb_imageblit': >> drivers/video/fbdev/core/fb_imageblit.h:490:16: warning: unused variable >> 'max_offset_bytes' [-Wunused-variable] 490 | unsigned long max_offset_bytes; | ^~~~~~~~~~~~~~~~ vim +/max_offset_bytes +490 drivers/video/fbdev/core/fb_imageblit.h 480 481 static inline void fb_imageblit(struct fb_info *p, const struct fb_image *image) 482 { 483 int bpp = p->var.bits_per_pixel; 484 unsigned int bits_per_line = BYTES_TO_BITS(p->fix.line_length); 485 struct fb_address dst = fb_address_init(p); 486 struct fb_reverse reverse = fb_reverse_init(p); 487 const u32 *palette = fb_palette(p); 488 struct fb_image clipped_image; 489 u32 max_x, max_y; > 490 unsigned long max_offset_bytes; -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
