diff --git a/arch/x86/kernel/cpu/mcheck/mce-severity.c b/arch/x86/kernel/cpu/mcheck/mce-severity.c
index bc35a073d151242415fe0b59d549da704f2e7245..8a85dd1b1aa1d515e76b1e1cd9fdb213b27a6bcd 100644
--- a/arch/x86/kernel/cpu/mcheck/mce-severity.c
+++ b/arch/x86/kernel/cpu/mcheck/mce-severity.c
@@ -139,6 +139,7 @@ int mce_severity(struct mce *a, int tolerant, char **msg)
 	}
 }
 
+#ifdef CONFIG_DEBUG_FS
 static void *s_start(struct seq_file *f, loff_t *pos)
 {
 	if (*pos >= ARRAY_SIZE(severities))
@@ -212,3 +213,4 @@ static int __init severities_debugfs_init(void)
 	return -ENOMEM;
 }
 late_initcall(severities_debugfs_init);
+#endif