> 
> From: Peter Chen
> > It is should be condition "or" not bit "or".
> >
> > Signed-off-by: Peter Chen <peter.c...@freescale.com>
> > ---
> >  drivers/usb/phy/phy-fsm-usb.c |    2 +-
> >  1 files changed, 1 insertions(+), 1 deletions(-)
> >
> > diff --git a/drivers/usb/phy/phy-fsm-usb.c
> > b/drivers/usb/phy/phy-fsm-usb.c index 0021839..bf5c32f 100644
> > --- a/drivers/usb/phy/phy-fsm-usb.c
> > +++ b/drivers/usb/phy/phy-fsm-usb.c
> > @@ -315,7 +315,7 @@ int otg_statemachine(struct otg_fsm *fsm)
> >                     otg_set_state(fsm, OTG_STATE_A_VBUS_ERR);
> >             else if (fsm->b_conn)
> >                     otg_set_state(fsm, OTG_STATE_A_HOST);
> > -           else if (fsm->id | fsm->a_bus_drop | fsm->a_wait_bcon_tmout)
> > +           else if (fsm->id || fsm->a_bus_drop || fsm->a_wait_bcon_tmout)
> >                     otg_set_state(fsm, OTG_STATE_A_WAIT_VFALL);
> >             break;
> >     case OTG_STATE_A_HOST:
> 
> That rather depends.
> It might be an optimisation (avoiding branch instructions) if it is
> normal that all three values will be zero.
> 

Then, why other state machine transfer uses "||" for their condition judgment?

Peter
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