* [drm-misc:for-linux-next 9/9] drivers/gpu/drm/vkms/vkms_formats.c:259: undefined reference to `__divdi3'
@ 2022-09-06 0:32 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2022-09-06 0:32 UTC (permalink / raw)
To: Igor Torrente; +Cc: Melissa Wen, kbuild-all, dri-devel
tree: git://anongit.freedesktop.org/drm/drm-misc for-linux-next
head: 396369d6754993e40f1c84b2e22e40e92dfa4c49
commit: 396369d6754993e40f1c84b2e22e40e92dfa4c49 [9/9] drm: vkms: Add support to the RGB565 format
config: i386-randconfig-a006-20220905 (https://download.01.org/0day-ci/archive/20220906/202209060813.wci1hZUA-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-5) 11.3.0
reproduce (this is a W=1 build):
git remote add drm-misc git://anongit.freedesktop.org/drm/drm-misc
git fetch --no-tags drm-misc for-linux-next
git checkout 396369d6754993e40f1c84b2e22e40e92dfa4c49
# save the config file
mkdir build_dir && cp config build_dir/.config
make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash
If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
ld: warning: arch/x86/lib/retpoline.o: missing .note.GNU-stack section implies executable stack
ld: NOTE: This behaviour is deprecated and will be removed in a future version of the linker
ld: drivers/gpu/drm/vkms/vkms_formats.o: in function `argb_u16_to_RGB565':
>> drivers/gpu/drm/vkms/vkms_formats.c:259: undefined reference to `__divdi3'
>> ld: drivers/gpu/drm/vkms/vkms_formats.c:260: undefined reference to `__divdi3'
ld: drivers/gpu/drm/vkms/vkms_formats.c:261: undefined reference to `__divdi3'
vim +259 drivers/gpu/drm/vkms/vkms_formats.c
241
242 static void argb_u16_to_RGB565(struct vkms_frame_info *frame_info,
243 const struct line_buffer *src_buffer, int y)
244 {
245 int x_dst = frame_info->dst.x1;
246 u16 *dst_pixels = packed_pixels_addr(frame_info, x_dst, y);
247 struct pixel_argb_u16 *in_pixels = src_buffer->pixels;
248 int x_limit = min_t(size_t, drm_rect_width(&frame_info->dst),
249 src_buffer->n_pixels);
250
251 s32 fp_rb_ratio = INT_TO_FIXED_DIV(65535, 31);
252 s32 fp_g_ratio = INT_TO_FIXED_DIV(65535, 63);
253
254 for (size_t x = 0; x < x_limit; x++, dst_pixels++) {
255 s32 fp_r = INT_TO_FIXED(in_pixels[x].r);
256 s32 fp_g = INT_TO_FIXED(in_pixels[x].g);
257 s32 fp_b = INT_TO_FIXED(in_pixels[x].b);
258
> 259 u16 r = FIXED_TO_INT_ROUND(FIXED_DIV(fp_r, fp_rb_ratio));
> 260 u16 g = FIXED_TO_INT_ROUND(FIXED_DIV(fp_g, fp_g_ratio));
261 u16 b = FIXED_TO_INT_ROUND(FIXED_DIV(fp_b, fp_rb_ratio));
262
263 *dst_pixels = cpu_to_le16(r << 11 | g << 5 | b);
264 }
265 }
266
--
0-DAY CI Kernel Test Service
https://01.org/lkp
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