ABACI reported the following bug by code static scanning: drivers/gpu/drm/gma500/psb_irq.c:35:19: warning: unused function 'gma_pipe_event'. In the following kernel version: name: linux-next url: http://kernel.source.codeaurora.cn/pub/scm/linux/kernel/git/next/linux-next.git branch: next-20220912 commit: 044b771be9c5de9d817dfafb829d2f049c71c3b4