Defined in 1 files as a macro:

• include/uapi/linux/if_tunnel.h, line 13 (as a macro)

Referenced in 7 files:

• net/ipv4/ip_tunnel.c, line 902
• net/ipv4/ip_vti.c, line 363
• net/ipv4/ipmr.c, line 371
• net/ipv6/ip6_gre.c, line 908
• net/ipv6/ip6_tunnel.c, line 1621
• net/ipv6/ip6_vti.c, line 788
• net/ipv6/sit.c, line 1234