[Intel-gfx] [PATCH 04/18] drm/i915: Only emit the 'send bug report' once for a GPU hang

[Chris Wilson]

Quoting Mika Kuoppala (2019-08-19 12:29:46)
> Chris Wilson <chris at chris-wilson.co.uk> writes:
> 
> > Use a locked xchg to ensure that the global log message giving
> > instructions on how to send a bug report is emitted precisely once.
> >
> 
> Well you must have run into this as this patch appeared.
> Arguably better than some read/write once trickery.

No... Just an eye to the future. I made this a non-device specific
message as it is purely informative, but I don't want our users informed
multiple times concurrently!
-Chris