--- /dev/null
+--- a/include/compat.h
++++ b/include/compat.h
+@@ -131,6 +131,11 @@
+ #ifdef __KERNEL__
+
+ #include <linux/version.h>
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38)
++#define AUTOCONF_INCLUDED 1
++#endif
++
+ #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,21)
+ #define ATH_REGISTER_SYSCTL_TABLE(t) register_sysctl_table(t, 1)
+ #else