On Fri, Jul 31, 2020 at 02:49:52PM +0800, YueHaibing wrote: > If CONFIG_INET_XFRM_TUNNEL is set but CONFIG_IPV6 is n, > > net/ipv4/ip_vti.c:493:27: warning: 'vti_ipip6_handler' defined but not used [-Wunused-variable] > > Signed-off-by: YueHaibing <yuehaibing@huawei.com>