diff --git a/arch/powerpc/platforms/iseries/viopath.c b/arch/powerpc/platforms/iseries/viopath.c
index 49ff4dc422b7be7b0bf8565335d48cb34cc0979f..5aea94f30836c5044fe1fab08378a9535ac35f47 100644
--- a/arch/powerpc/platforms/iseries/viopath.c
+++ b/arch/powerpc/platforms/iseries/viopath.c
@@ -116,7 +116,7 @@ static int proc_viopath_show(struct seq_file *m, void *v)
 	u16 vlanMap;
 	dma_addr_t handle;
 	HvLpEvent_Rc hvrc;
-	DECLARE_COMPLETION(done);
+	DECLARE_COMPLETION_ONSTACK(done);
 	struct device_node *node;
 	const char *sysid;