On Tue, Mar 29, 2016 at 05:22:02PM +0300, Imre Deak wrote:
> On Tue, 2016-03-29 at 13:12 +0200, Daniel Vetter wrote:
> > This reverts commit e91abf80a0998f326107874c88d549f94839f13c.
> >
> > Since
> >
> > commit 24e4a8c3e8868874835b0f1ad6dd417341e99822
> > Author: John Stultz <john.stultz@xxxxxxxxxx>
> > Date: Wed Jul 16 21:03:53 2014 +0000
> >
> > ktime: Kill non-scalar ktime_t implementation for 2038
> >
> > there is no longer a 32bit version that's unsigned, and we don't have
> > to jump through ridiculous hoops to make the calculations correct.
> >
> > I didn't look whether there's more of this pattern in the kernel.
> >
> > Cc: John Stultz <john.stultz@xxxxxxxxxx>
> > Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
> > Cc: Michel Dänzer <michel.daenzer@xxxxxxx>
> > Cc: Imre Deak <imre.deak@xxxxxxxxx>
> > Cc: Dave Airlie <airlied@xxxxxxxxxx>
> > Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxxx>
>
> Reviewed-by: Imre Deak <imre.deak@xxxxxxxxx>
Applied to drm-misc, thanks for the review.
-Daniel
>
> > ---
> > drivers/gpu/drm/drm_irq.c | 5 +----
> > 1 file changed, 1 insertion(+), 4 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c
> > index f77653562fac..4d06cf41df96 100644
> > --- a/drivers/gpu/drm/drm_irq.c
> > +++ b/drivers/gpu/drm/drm_irq.c
> > @@ -863,10 +863,7 @@ int drm_calc_vbltimestamp_from_scanoutpos(struct
> > drm_device *dev,
> > /* Subtract time delta from raw timestamp to get final
> > * vblank_time timestamp for end of vblank.
> > */
> > - if (delta_ns < 0)
> > - etime = ktime_add_ns(etime, -delta_ns);
> > - else
> > - etime = ktime_sub_ns(etime, delta_ns);
> > + etime = ktime_sub_ns(etime, delta_ns);
> > *vblank_time = ktime_to_timeval(etime);
> >
> > DRM_DEBUG_VBL("crtc %u : v 0x%x p(%d,%d)@ %ld.%ld -> %ld.%ld
> > [e %d us, %d rep]\n",b
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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