v4l2_is_known_ioctl 2892 drivers/media/v4l2-core/v4l2-ioctl.c 	if (v4l2_is_known_ioctl(cmd)) {
v4l2_is_known_ioctl 3052 drivers/media/v4l2-core/v4l2-ioctl.c 			if (v4l2_is_known_ioctl(cmd)) {