diff options
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_hdcp.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_hdcp.c b/drivers/gpu/drm/i915/display/intel_hdcp.c index 521786a75c42..0a076d2ed70a 100644 --- a/drivers/gpu/drm/i915/display/intel_hdcp.c +++ b/drivers/gpu/drm/i915/display/intel_hdcp.c @@ -1801,9 +1801,10 @@ int hdcp2_authenticate_repeater_topology(struct intel_connector *connector) return -EINVAL; } - if (seq_num_v < hdcp->seq_num_v) { - /* Roll over of the seq_num_v from repeater. Reauthenticate. */ - drm_dbg_kms(display->drm, "Seq_num_v roll over.\n"); + if (hdcp->hdcp2_encrypted && seq_num_v <= hdcp->seq_num_v) { + /* Reauthenticate on Seq_num_v repeat or rollover */ + drm_dbg_kms(display->drm, "Seq_num_v %s\n", + seq_num_v == hdcp->seq_num_v ? "repeat" : "rollover"); return -EINVAL; } |