--- a/backport-include/linux/kconfig.h
+++ b/backport-include/linux/kconfig.h
@@ -5,6 +5,8 @@
 #include_next <linux/kconfig.h>
 #endif
 
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3,4,0)
+
 #ifndef __ARG_PLACEHOLDER_1
 #define __ARG_PLACEHOLDER_1 0,
 #define config_enabled(cfg) _config_enabled(cfg)
@@ -16,6 +18,7 @@
  * 3.1 - 3.3 had a broken version of this, so undef
  * (they didn't have __ARG_PLACEHOLDER_1)
  */
+
 #undef IS_ENABLED
 #define IS_ENABLED(option) \
         (config_enabled(option) || config_enabled(option##_MODULE))
@@ -24,6 +27,8 @@
 #undef IS_BUILTIN
 #define IS_BUILTIN(option) config_enabled(option)
 
+#endif
+
 #ifndef IS_REACHABLE
 /*
  * IS_REACHABLE(CONFIG_FOO) evaluates to 1 if the currently compiled