Symbol: MPTCP_CLEAN_UNA
net/mptcp/protocol.c
3601
__set_bit(MPTCP_CLEAN_UNA, &mptcp_sk(sk)->cb_flags);
net/mptcp/protocol.c
3663
if (__test_and_clear_bit(MPTCP_CLEAN_UNA, &msk->cb_flags))