mv88e6xxx_hwtstamp_work  492 drivers/net/dsa/mv88e6xxx/ptp.c 	chip->ptp_clock_info.do_aux_work = mv88e6xxx_hwtstamp_work;
mv88e6xxx_hwtstamp_work  144 drivers/net/dsa/mv88e6xxx/ptp.h long mv88e6xxx_hwtstamp_work(struct ptp_clock_info *ptp);