diff --git a/lib/percpu-refcount.c b/lib/percpu-refcount.c
index 8d092609928e..0ba686b8fe57 100644
--- a/lib/percpu-refcount.c
+++ b/lib/percpu-refcount.c
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: GPL-2.0-only
-#define pr_fmt(fmt) "%s: " fmt "\n", __func__
+#define pr_fmt(fmt) "%s: " fmt, __func__
 
 #include <linux/kernel.h>
 #include <linux/sched.h>
@@ -141,8 +141,8 @@ static void percpu_ref_switch_to_atomic_rcu(struct rcu_head *rcu)
 	for_each_possible_cpu(cpu)
 		count += *per_cpu_ptr(percpu_count, cpu);
 
-	pr_debug("global %ld percpu %ld",
-		 atomic_long_read(&ref->count), (long)count);
+	pr_debug("global %lu percpu %lu\n",
+		 atomic_long_read(&ref->count), count);
 
 	/*
 	 * It's crucial that we sum the percpu counters _before_ adding the sum