[PATCH] [FYI] etnaviv: use ktime_t for timeouts

[Russell King - ARM Linux]

On Mon, Nov 06, 2017 at 03:44:40PM +0100, Arnd Bergmann wrote:
> This is what I ended up with after Lucas' email this morning,
> it should result in exactly the same behavior as Russell's patch
> but also remove all traces of 'timespec' from the kernel.

What if userspace passes in a zero timeout?  Your patch appears to
make that non-blocking.  I'd rather keep the semantics different
as they are today, and pass the drm_etnaviv_timeout into the
functions rather than a ktime.

Remember that the specs for the monotonic clock_gettime() allow
systems to define an arbitary starting value.  That starting value
could be a negative number, which would mean a timestamp of all
zeros is a legal timestamp in the future.

-- 
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