+--- a/arch/mips/include/asm/dsemul.h
++++ b/arch/mips/include/asm/dsemul.h
+@@ -41,6 +41,7 @@
+ extern int mips_dsemul(struct pt_regs *regs, mips_instruction ir,
+ unsigned long branch_pc, unsigned long cont_pc);
+
++#ifdef CONFIG_MIPS_FPU_EMULATOR
+ /**
+ * do_dsemulret() - Return from a delay slot 'emulation' frame
+ * @xcp: User thread register context.
+@@ -88,5 +89,27 @@
+ * before @mm is freed in order to avoid memory leaks.
+ */
+ extern void dsemul_mm_cleanup(struct mm_struct *mm);
++#else
++static inline bool do_dsemulret(struct pt_regs *xcp)
++{
++ return false;
++}
++
++static inline bool dsemul_thread_cleanup(struct task_struct *tsk)
++{
++ return false;
++}
++
++static inline bool dsemul_thread_rollback(struct pt_regs *regs)
++{
++ return false;
++}
++
++static inline void dsemul_mm_cleanup(struct mm_struct *mm)
++{
++
++}
++
++#endif
+
+ #endif /* __MIPS_ASM_DSEMUL_H__ */