Symbol: M_TIMESTAMP
sys/dev/pci/if_mcx.c
6959
SET(m->m_pkthdr.csum_flags, M_TIMESTAMP);
sys/kern/uipc_mbuf.c
1439
if (ISSET(m->m_pkthdr.csum_flags, M_TIMESTAMP)) {
sys/net/if.c
755
CLR(m->m_pkthdr.csum_flags, M_TIMESTAMP);