--- zzzz-none-000/linux-4.1.38/include/linux/quota.h	2017-01-18 18:48:06.000000000 +0000
+++ bcm63-7582-715/linux-4.1.38/include/linux/quota.h	2020-11-25 10:06:48.000000000 +0000
@@ -492,11 +492,11 @@
 }
 
 #ifdef CONFIG_QUOTA_NETLINK_INTERFACE
-extern void quota_send_warning(struct kqid qid, dev_t dev,
-			       const char warntype);
+extern void quota_send_warning(struct kqid qid __maybe_unused, dev_t dev __maybe_unused,
+			       const char warntype __maybe_unused);
 #else
-static inline void quota_send_warning(struct kqid qid, dev_t dev,
-				      const char warntype)
+static inline void quota_send_warning(struct kqid qid __maybe_unused, dev_t dev __maybe_unused,
+				      const char warntype __maybe_unused)
 {
 	return;
 }