Index: kernel/arch/mips32/include/barrier.h
===================================================================
--- kernel/arch/mips32/include/barrier.h	(revision e25eca8008c4df6f190fbd28a399c5e01406f863)
+++ kernel/arch/mips32/include/barrier.h	(revision eeaf6673fd4ddd864fd860c5f2c9d4355760a408)
@@ -47,4 +47,5 @@
 
 #define smc_coherence(a)
+#define smc_coherence_block(a, l)
 
 #endif