Symbol: HOOKS4_INTERESTED_LOOPBACK_IN
usr/src/uts/common/inet/ip/ip_output.c
1164
if (HOOKS4_INTERESTED_LOOPBACK_IN(ipst)) {
usr/src/uts/common/inet/tcp/tcp_fusion.c
522
hooks_in = HOOKS4_INTERESTED_LOOPBACK_IN(ipst);