Defined in 1 files as a macro:

• include/uapi/linux/in.h, line 146 (as a macro)

Referenced in 4 files:

• arch/um/drivers/umcast_user.c, line 126
• net/ipv4/ip_sockglue.c
  • line 642
  • line 1200
  • line 1222
• tools/testing/selftests/net/nettest.c, line 493
• tools/testing/selftests/net/timestamping.c, line 427