Defined in 1 files as a macro:

• include/uapi/linux/if_tunnel.h, line 14 (as a macro)

Referenced in 7 files:

• net/ipv4/ip_tunnel.c, line 941
• net/ipv4/ip_vti.c, line 375
• net/ipv4/ipmr.c, line 445
• net/ipv6/ip6_gre.c, line 1302
• net/ipv6/ip6_tunnel.c, line 1651
• net/ipv6/ip6_vti.c, line 823
• net/ipv6/sit.c, line 1261