--- zzzz-none-000/linux-3.10.107/arch/mips/include/asm/mips_mt.h	2017-06-27 09:49:32.000000000 +0000
+++ vr9-7490-729/linux-3.10.107/arch/mips/include/asm/mips_mt.h	2021-11-10 11:53:54.000000000 +0000
@@ -18,7 +18,12 @@
 extern unsigned long mt_fpemul_threshold;
 
 extern void mips_mt_regdump(unsigned long previous_mvpcontrol_value);
+
+#ifdef CONFIG_MIPS_MT
 extern void mips_mt_set_cpuoptions(void);
+#else
+static inline void mips_mt_set_cpuoptions(void) { }
+#endif
 
 struct class;
 extern struct class *mt_class;