diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
index c641f84649d6bd3da8eaf6eaece54c1e22cbb810..b48d68d30d801cfb275e4e7b5ffd30280fa485ae 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
@@ -518,7 +518,7 @@ static struct psp_gfx_cmd_resp *acquire_psp_cmd_buf(struct psp_context *psp)
 	return cmd;
 }
 
-void release_psp_cmd_buf(struct psp_context *psp)
+static void release_psp_cmd_buf(struct psp_context *psp)
 {
 	mutex_unlock(&psp->mutex);
 }