tick_before       614 drivers/usb/host/ohci-hub.c #define tick_before(t1,t2) ((s16)(((s16)(t1))-((s16)(t2))) < 0)
tick_before      2634 drivers/usb/host/u132-hcd.c #define tick_before(t1, t2) ((s16)(((s16)(t1))-((s16)(t2))) < 0)