diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c
index 1651defb2df72a7f1610f1a296f80f1a245cb1de..19ad4fb0a6107350d19be768a1296195d3696c90 100644
--- a/drivers/gpu/drm/radeon/radeon_connectors.c
+++ b/drivers/gpu/drm/radeon/radeon_connectors.c
@@ -1512,7 +1512,7 @@ u16 radeon_connector_encoder_get_dp_bridge_encoder_id(struct drm_connector *conn
 	return ENCODER_OBJECT_ID_NONE;
 }
 
-bool radeon_connector_encoder_is_hbr2(struct drm_connector *connector)
+static bool radeon_connector_encoder_is_hbr2(struct drm_connector *connector)
 {
 	struct drm_encoder *encoder;
 	struct radeon_encoder *radeon_encoder;
diff --git a/drivers/gpu/drm/radeon/radeon_mode.h b/drivers/gpu/drm/radeon/radeon_mode.h
index 9ccae81c7d8856ef3976183ba8d84eec01b2b2f1..e27608c29c112f5e8d164214ca7b56855ef15593 100644
--- a/drivers/gpu/drm/radeon/radeon_mode.h
+++ b/drivers/gpu/drm/radeon/radeon_mode.h
@@ -685,7 +685,6 @@ extern bool radeon_dig_monitor_is_duallink(struct drm_encoder *encoder,
 
 extern u16 radeon_encoder_get_dp_bridge_encoder_id(struct drm_encoder *encoder);
 extern u16 radeon_connector_encoder_get_dp_bridge_encoder_id(struct drm_connector *connector);
-extern bool radeon_connector_encoder_is_hbr2(struct drm_connector *connector);
 extern bool radeon_connector_is_dp12_capable(struct drm_connector *connector);
 extern int radeon_get_monitor_bpc(struct drm_connector *connector);