net/ipv6/ip6_tunnel.c:1876: warning: No description found for return value of 'ip6_tnl_dev_init_gen'
net/ipv6/ip6_tunnel.c:1919: warning: No description found for return value of 'ip6_tnl_dev_init'
net/ipv6/ip6_vti.c:443: warning: No description found for return value of 'vti6_xmit'
net/ipv6/ip6_vti.c:710: warning: No description found for return value of 'vti6_tnl_change'
net/ipv6/ip6_vti.c:925: warning: No description found for return value of 'vti6_dev_init_gen'
net/ipv6/ip6_vti.c:940: warning: No description found for return value of 'vti6_dev_init'
net/ipv6/ip6_tunnel.c:1875: warning: No description found for return value of 'ip6_tnl_dev_init_gen'
net/ipv6/ip6_tunnel.c:1919: warning: No description found for return value of 'ip6_tnl_dev_init'
net/ipv6/ip6_vti.c:442: warning: No description found for return value of 'vti6_xmit'
net/ipv6/ip6_vti.c:709: warning: No description found for return value of 'vti6_tnl_change'
net/ipv6/ip6_vti.c:924: warning: No description found for return value of 'vti6_dev_init_gen'
net/ipv6/ip6_vti.c:940: warning: No description found for return value of 'vti6_dev_init'