[PATCH] drm/i915/display: Initalizalize capability variables

Kandpal, Suraj suraj.kandpal at intel.com
Wed Mar 27 03:36:29 UTC 2024


> Hello Suraj,
> 
> > -----Original Message-----
> > From: Kandpal, Suraj <suraj.kandpal at intel.com>
> > Sent: Tuesday, March 26, 2024 10:45 AM
> > To: intel-gfx at lists.freedesktop.org
> > Cc: Borah, Chaitanya Kumar <chaitanya.kumar.borah at intel.com>; Kandpal,
> > Suraj <suraj.kandpal at intel.com>
> > Subject: [PATCH] drm/i915/display: Initalizalize capability variables
> 
> Typo: Initialize
> 

Sure will fix

> > Initialize HDCP capability variables to false to avoid UBSAN warning
> > in boolean value.
> >
> 
> I can see a case where hdcp_cap remains unassigned in case
> intel_dp_hdcp_get_remote_capability() returns without assigning it a value.
> 
> Is that intended/expected?
> 

That is not intentional but this patch makes sure hdcp_capable will be false when this function
gets called.

Regards,
Suraj Kandpal

> Regards
> 
> Chaitanya
> 
> > Signed-off-by: Suraj Kandpal <suraj.kandpal at intel.com>
> > ---
> >  drivers/gpu/drm/i915/display/intel_display_debugfs.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/gpu/drm/i915/display/intel_display_debugfs.c
> > b/drivers/gpu/drm/i915/display/intel_display_debugfs.c
> > index b99c024b0934..95d14dab089e 100644
> > --- a/drivers/gpu/drm/i915/display/intel_display_debugfs.c
> > +++ b/drivers/gpu/drm/i915/display/intel_display_debugfs.c
> > @@ -191,7 +191,7 @@ static void intel_hdcp_info(struct seq_file *m,
> >  			    struct intel_connector *intel_connector,
> >  			    bool remote_req)
> >  {
> > -	bool hdcp_cap, hdcp2_cap;
> > +	bool hdcp_cap = false, hdcp2_cap = false;
> >
> >  	if (!intel_connector->hdcp.shim) {
> >  		seq_puts(m, "No Connector Support");
> > --
> > 2.43.2



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