[Intel-gfx] [Intel-gfx 6/6] drm/i915/guc: Move guc_log_relay_chan debugfs path to uc

[Teres Alexis, Alan Previn]

On Wed, 2022-07-20 at 12:08 -0700, Dixit, Ashutosh wrote:
> On Mon, 09 May 2022 14:01:51 -0700, Alan Previn wrote:
> > 
> > All other GuC Relay Logging debugfs handles including recent
> > additions are under the 'i915/gt/uc/path' so let's also move
> > 'guc_log_relay_chan' to its proper home
Alan:[snip]

> > diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c
> > index 793a06a16874..f6578565fed6 100644
> > --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c
> > +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c
> > @@ -419,8 +419,11 @@ static int guc_log_relay_create(struct intel_guc_log *log)
> > 	 */
> > 	n_subbufs = intel_guc_log_relay_subbuf_count(log);
> > 
> > +	if (!guc->dbgfs_node)
> > +		return -ENOENT;
> 
> Once again, why is this check needed? The patch is otherwise fine.
> 

Because on i915 upstream today, we do have a code path where that dbgfs_node is not being populated and i assume that
would be the case if config file disables debugfs? And without that we don't support guc-relay-logging.