[Intel-gfx] [PATCH i-g-t 1/2] lib: Remove i915ism when checking that debugfs is mounted

[Chris Wilson]

On Thu, Mar 02, 2017 at 02:39:16PM +0100, Tomeu Vizoso wrote:
> On 2 March 2017 at 11:12, Chris Wilson <chris at chris-wilson.co.uk> wrote:
> > On Thu, Mar 02, 2017 at 11:08:25AM +0100, Tomeu Vizoso wrote:
> >> Instead of checking for "i915_error_state" within dri/N/, check for
> >> "name".
> >>
> >> This allows more tests to run against drivers other than i915.
> >
> > Bleh. Sadly many users are expecting to have the i915 directory. Please
> > kill the singleton and convert users to request which device debugfs
> > they want.
> 
> Are you sure this is needed? If a test opened the device with
> DRIVER_INTEL, it cannot happen that the debugfs dir is present but the
> i915-specific files aren't.

Opening by DRIVER_INTEL does not mean that the first name is i915. I am
suggesting that we transition away from assuming that we only want to
open i915's debugfs by opening the exact debugfs dir. (i.e. find the
minor index for the desired device, then open that path.)
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre