diff --git a/sys/netinet6/in6.h b/sys/netinet6/in6.h
--- a/sys/netinet6/in6.h
+++ b/sys/netinet6/in6.h
@@ -219,19 +219,11 @@
 
 /*
  * Equality
- * NOTE: Some of kernel programming environment (for example, openbsd/sparc)
- * does not supply memcmp().  For userland memcmp() is preferred as it is
- * in ANSI standard.
  */
-#ifdef _KERNEL
-#define IN6_ARE_ADDR_EQUAL(a, b)			\
-    (bcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0)
-#else
 #if __BSD_VISIBLE
 #define IN6_ARE_ADDR_EQUAL(a, b)			\
     (memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0)
 #endif
-#endif
 
 /*
  * Unspecified