ABACI reported the following bug by code static scanning: drivers/video/fbdev/tridentfb.c:1131:20: warning: unused function 'shadowmode_off'. In the following kernel version: [+]kernel: http://kernel.source.codeaurora.cn/pub/scm/linux/kernel/git/next/linux-next.git [+]branch: next-20220913 [+]commit: 044b771be9c5de9d817dfafb829d2f049c71c3b4
submitted to upstream: https://lore.kernel.org/all/3cf0085e-3927-9049-8b92-f84b7496d59c@gmx.de/