LLC_I_PF_BIT_MASK 125 include/net/llc_pdu.h #define LLC_I_PF_IS_0(pdu) ((!(pdu->ctrl_2 & LLC_I_PF_BIT_MASK)) ? 1 : 0) LLC_I_PF_BIT_MASK 126 include/net/llc_pdu.h #define LLC_I_PF_IS_1(pdu) ((pdu->ctrl_2 & LLC_I_PF_BIT_MASK) ? 1 : 0) LLC_I_PF_BIT_MASK 113 net/llc/llc_pdu.c pdu->ctrl_2 |= (p_bit & LLC_I_PF_BIT_MASK); /* p/f bit */