[MIPS] MT: Improved multithreading support.
    
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/include/asm-mips/hazards.h b/include/asm-mips/hazards.h
index feb29a7..dadc051 100644
--- a/include/asm-mips/hazards.h
+++ b/include/asm-mips/hazards.h
@@ -284,6 +284,8 @@
 #define instruction_hazard() do { } while (0)
 #endif
 
+extern void mips_ihb(void);
+
 #endif /* __ASSEMBLY__ */
 
 #endif /* _ASM_HAZARDS_H */