When roll over detected for seq_num_m, we shouldn't continue with stream management with rolled over value.
So we are terminating the stream management retry, on roll over of the seq_num_m. Signed-off-by: Ramalingam C <[email protected]> --- drivers/gpu/drm/i915/display/intel_hdcp.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_hdcp.c b/drivers/gpu/drm/i915/display/intel_hdcp.c index fad220d5d105..7ac13c72aa95 100644 --- a/drivers/gpu/drm/i915/display/intel_hdcp.c +++ b/drivers/gpu/drm/i915/display/intel_hdcp.c @@ -1419,11 +1419,6 @@ int _hdcp2_propagate_stream_management_info(struct intel_connector *connector) err_exit: hdcp->seq_num_m++; - if (hdcp->seq_num_m > HDCP_2_2_SEQ_NUM_MAX) { - DRM_DEBUG_KMS("seq_num_m roll over.\n"); - ret = -1; - } - return ret; } @@ -1617,8 +1612,11 @@ hdcp2_propagate_stream_management_info(struct intel_connector *connector) for (i = 0; i < tries; i++) { ret = _hdcp2_propagate_stream_management_info(connector); - if (!ret) + if (!ret || connector->hdcp.seq_num_m > HDCP_2_2_SEQ_NUM_MAX) { + if (connector->hdcp.seq_num_m > HDCP_2_2_SEQ_NUM_MAX) + DRM_DEBUG_KMS("seq_num_m roll over.\n"); break; + } DRM_DEBUG_KMS("HDCP2 stream management %d of %d Failed.(%d)\n", i + 1, tries, ret); -- 2.20.1 _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
