Defined in 1 files as a macro:

• include/net/ip_tunnels.h, line 38 (as a macro)

Referenced in 4 files:

• net/ipv4/ip_gre.c, line 210
• net/ipv4/ip_tunnel.c, line 814
• net/ipv4/ipip.c, line 193
• net/ipv6/sit.c
  • line 598
  • line 993