diff --git a/drivers/gpu/drm/radeon/cik.c b/drivers/gpu/drm/radeon/cik.c
index cef0f3111cd3..2af76463906a 100644
--- a/drivers/gpu/drm/radeon/cik.c
+++ b/drivers/gpu/drm/radeon/cik.c
@@ -129,9 +129,6 @@ MODULE_FIRMWARE("radeon/mullins_rlc.bin");
 MODULE_FIRMWARE("radeon/mullins_sdma.bin");
 
 static u32 cik_get_cu_active_bitmap(struct radeon_device *rdev, u32 se, u32 sh);
-extern int cik_sdma_resume(struct radeon_device *rdev);
-extern void cik_sdma_enable(struct radeon_device *rdev, bool enable);
-extern void cik_sdma_fini(struct radeon_device *rdev);
 extern void vce_v2_0_enable_mgcg(struct radeon_device *rdev, bool enable);
 static void cik_rlc_stop(struct radeon_device *rdev);
 static void cik_pcie_gen3_enable(struct radeon_device *rdev);
diff --git a/drivers/gpu/drm/radeon/cik.h b/drivers/gpu/drm/radeon/cik.h
index 420207d19de5..d1bf541da592 100644
--- a/drivers/gpu/drm/radeon/cik.h
+++ b/drivers/gpu/drm/radeon/cik.h
@@ -34,4 +34,7 @@ void cik_init_cp_pg_table(struct radeon_device *rdev);
 u32 cik_get_csb_size(struct radeon_device *rdev);
 void cik_get_csb_buffer(struct radeon_device *rdev, volatile u32 *buffer);
 
+int cik_sdma_resume(struct radeon_device *rdev);
+void cik_sdma_enable(struct radeon_device *rdev, bool enable);
+void cik_sdma_fini(struct radeon_device *rdev);
 #endif                         /* __CIK_H__ */