net: use IS_ENABLED(CONFIG_IPV6)

Instead of testing defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h
index f15fd98..2c5993a 100644
--- a/include/linux/sunrpc/clnt.h
+++ b/include/linux/sunrpc/clnt.h
@@ -215,7 +215,7 @@
 	return true;
 }
 
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
 static inline bool __rpc_cmp_addr6(const struct sockaddr *sap1,
 				   const struct sockaddr *sap2)
 {
@@ -240,7 +240,7 @@
 	dsin6->sin6_addr = ssin6->sin6_addr;
 	return true;
 }
-#else	/* !(CONFIG_IPV6 || CONFIG_IPV6_MODULE) */
+#else	/* !(IS_ENABLED(CONFIG_IPV6) */
 static inline bool __rpc_cmp_addr6(const struct sockaddr *sap1,
 				   const struct sockaddr *sap2)
 {
@@ -252,7 +252,7 @@
 {
 	return false;
 }
-#endif	/* !(CONFIG_IPV6 || CONFIG_IPV6_MODULE) */
+#endif	/* !(IS_ENABLED(CONFIG_IPV6) */
 
 /**
  * rpc_cmp_addr - compare the address portion of two sockaddrs.