linux-kernel - Re: [PATCH 1/2] drm: vblank: use ktime

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Message-ID: <877ew18mn5.fsf@keithp.com>
Date:   Wed, 11 Oct 2017 13:17:34 -0700
From:   "Keith Packard" <keithp@...thp.com>
To:     Arnd Bergmann <arnd@...db.de>, Sean Paul <seanpaul@...omium.org>
Cc:     Daniel Vetter <daniel.vetter@...ll.ch>,
        Daniel Vetter <daniel.vetter@...el.com>,
        Jani Nikula <jani.nikula@...ux.intel.com>,
        David Airlie <airlied@...ux.ie>,
        Ville Syrjälä <ville.syrjala@...ux.intel.com>,
        Chris Wilson <chris@...is-wilson.co.uk>,
        Alex Deucher <alexander.deucher@....com>,
        Thierry Reding <treding@...dia.com>,
        dri-devel <dri-devel@...ts.freedesktop.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/2] drm: vblank: use ktime_t instead of timeval

Arnd Bergmann <arnd@...db.de> writes:

> That is an interesting coincidence, I created my patch earlier this week
> without having any idea that others were looking at the same files.

My requirements were to support 64-bit vblank counts and ns precision
vblank timing for Vulkan; obviously using ktime_t was a good cleaup at
the same time.

My patch also widens the sequence numbers to 64-bits, so it's a superset
of Arnd's patch; rebasing should be straightforward (although not
automatic) if that's what we want to do.

-- 
-keith

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