diff --git a/include/asm-sparc/cacheflush.h b/include/asm-sparc/cacheflush.h
index fc632f8..68ac109 100644
--- a/include/asm-sparc/cacheflush.h
+++ b/include/asm-sparc/cacheflush.h
@@ -48,6 +48,7 @@
 
 #define flush_cache_all() BTFIXUP_CALL(flush_cache_all)()
 #define flush_cache_mm(mm) BTFIXUP_CALL(flush_cache_mm)(mm)
+#define flush_cache_dup_mm(mm) BTFIXUP_CALL(flush_cache_mm)(mm)
 #define flush_cache_range(vma,start,end) BTFIXUP_CALL(flush_cache_range)(vma,start,end)
 #define flush_cache_page(vma,addr,pfn) BTFIXUP_CALL(flush_cache_page)(vma,addr)
 #define flush_icache_range(start, end)		do { } while (0)