[Intel-wired-lan] [RFC PATCH] e1000e: allow non-monotonic SYSTIM readings

[Miroslav Lichvar <mlichvar@redhat.com>]

On Fri, Oct 19, 2018 at 04:56:02PM +0000, Keller, Jacob E wrote:
> > @@ -233,6 +237,9 @@ static void e1000e_systim_overflow_work(struct
> > work_struct *work)
> >  	struct e1000_hw *hw = &adapter->hw;
> >  	struct timespec64 ts;
> > 
> > +	/* Update the timecounter */
> > +	timecounter_read(&adapter->tc);
> > +
> 
> yea, we previously depended on the gettime64 to do timecounter_read implicitly.
> 
> >  	adapter->ptp_clock_info.gettime64(&adapter->ptp_clock_info, &ts);
> 
> Can't we drop this line now?

Yes. We can save the value returned by the timecounter_read call and
convert it to timespec for the debug message below. I'll send a new
patch.

> > 
> >  	e_dbg("SYSTIM overflow check at %lld.%09lu\n",

Thanks,

-- 
Miroslav Lichvar