diff --git a/drivers/gpu/drm/radeon/sumo_dpm.c b/drivers/gpu/drm/radeon/sumo_dpm.c
index 78d839f8d37da5197c194a56dc7e13507c6036c6..f121efe12dc5c10a4fd6f1c5283ee7f87e8b0797 100644
--- a/drivers/gpu/drm/radeon/sumo_dpm.c
+++ b/drivers/gpu/drm/radeon/sumo_dpm.c
@@ -71,7 +71,7 @@ static const u32 sumo_dtc[SUMO_PM_NUMBER_OF_TC] =
 	SUMO_DTC_DFLT_14,
 };
 
-struct sumo_ps *sumo_get_ps(struct radeon_ps *rps)
+static struct sumo_ps *sumo_get_ps(struct radeon_ps *rps)
 {
 	struct sumo_ps *ps = rps->ps_priv;
 
diff --git a/drivers/gpu/drm/radeon/sumo_smc.c b/drivers/gpu/drm/radeon/sumo_smc.c
index 18abba5b5810b467f23efb012b9eee24e5e3a155..fb081d2ae37477e37b0ec28068c7d45112e19bc0 100644
--- a/drivers/gpu/drm/radeon/sumo_smc.c
+++ b/drivers/gpu/drm/radeon/sumo_smc.c
@@ -31,7 +31,6 @@
 #define SUMO_SMU_SERVICE_ROUTINE_ALTVDDNB_NOTIFY  27
 #define SUMO_SMU_SERVICE_ROUTINE_GFX_SRV_ID_20  20
 
-struct sumo_ps *sumo_get_ps(struct radeon_ps *rps);
 struct sumo_power_info *sumo_get_pi(struct radeon_device *rdev);
 
 static void sumo_send_msg_to_smu(struct radeon_device *rdev, u32 id)