Zhiyi Zhang (@zhiyi) commented about dlls/win32u/sysparams.c:
mode = NEXT_DEVMODEW(mode); } info->mode_count = i;
qsort(info->modes, info->mode_count, sizeof(*info->modes) + info->modes->dmDriverExtra, mode_compare);
There is no dmDriverExtra so sizeof(*info->modes) is enough.