--- zzzz-none-000/linux-4.1.52/include/linux/seq_file.h	2018-05-28 02:26:45.000000000 +0000
+++ bcm63-7530ax-731/linux-4.1.52/include/linux/seq_file.h	2022-03-02 11:37:13.000000000 +0000
@@ -133,7 +133,7 @@
 int seq_put_decimal_ll(struct seq_file *m, char delimiter,
 			long long num);
 
-static inline struct user_namespace *seq_user_ns(struct seq_file *seq)
+static inline struct user_namespace *seq_user_ns(struct seq_file *seq __maybe_unused)
 {
 #ifdef CONFIG_USER_NS
 	return seq->file->f_cred->user_ns;