diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
index 1feb6439cb0b..3b32c08faec9 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
@@ -97,8 +97,8 @@ int gmc_v7_0_mc_wait_for_idle(struct amdgpu_device *adev)
 	return -1;
 }
 
-void gmc_v7_0_mc_stop(struct amdgpu_device *adev,
-		      struct amdgpu_mode_mc_save *save)
+static void gmc_v7_0_mc_stop(struct amdgpu_device *adev,
+			     struct amdgpu_mode_mc_save *save)
 {
 	u32 blackout;
 
@@ -120,8 +120,8 @@ void gmc_v7_0_mc_stop(struct amdgpu_device *adev,
 	udelay(100);
 }
 
-void gmc_v7_0_mc_resume(struct amdgpu_device *adev,
-			struct amdgpu_mode_mc_save *save)
+static void gmc_v7_0_mc_resume(struct amdgpu_device *adev,
+			       struct amdgpu_mode_mc_save *save)
 {
 	u32 tmp;
 
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.h b/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.h
index 36fcbbc46ada..998fb021fb76 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.h
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.h
@@ -27,10 +27,6 @@
 extern const struct amd_ip_funcs gmc_v7_0_ip_funcs;
 
 /* XXX these shouldn't be exported */
-void gmc_v7_0_mc_stop(struct amdgpu_device *adev,
-		      struct amdgpu_mode_mc_save *save);
-void gmc_v7_0_mc_resume(struct amdgpu_device *adev,
-			struct amdgpu_mode_mc_save *save);
 int gmc_v7_0_mc_wait_for_idle(struct amdgpu_device *adev);
 
 #endif
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
index 9945d5bbf1fe..ba51e18f04b0 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
@@ -176,8 +176,8 @@ int gmc_v8_0_mc_wait_for_idle(struct amdgpu_device *adev)
 	return -1;
 }
 
-void gmc_v8_0_mc_stop(struct amdgpu_device *adev,
-		      struct amdgpu_mode_mc_save *save)
+static void gmc_v8_0_mc_stop(struct amdgpu_device *adev,
+			     struct amdgpu_mode_mc_save *save)
 {
 	u32 blackout;
 
@@ -199,8 +199,8 @@ void gmc_v8_0_mc_stop(struct amdgpu_device *adev,
 	udelay(100);
 }
 
-void gmc_v8_0_mc_resume(struct amdgpu_device *adev,
-			struct amdgpu_mode_mc_save *save)
+static void gmc_v8_0_mc_resume(struct amdgpu_device *adev,
+			       struct amdgpu_mode_mc_save *save)
 {
 	u32 tmp;
 
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.h b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.h
index 973436086b38..94fdaeb382d4 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.h
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.h
@@ -27,10 +27,6 @@
 extern const struct amd_ip_funcs gmc_v8_0_ip_funcs;
 
 /* XXX these shouldn't be exported */
-void gmc_v8_0_mc_stop(struct amdgpu_device *adev,
-		      struct amdgpu_mode_mc_save *save);
-void gmc_v8_0_mc_resume(struct amdgpu_device *adev,
-			struct amdgpu_mode_mc_save *save);
 int gmc_v8_0_mc_wait_for_idle(struct amdgpu_device *adev);
 
 #endif