Index: compat-wireless-2010-07-31/include/linux/compat-2.6.36.h
===================================================================
--- compat-wireless-2010-07-31.orig/include/linux/compat-2.6.36.h	2010-08-01 15:28:00.299100291 +0200
+++ compat-wireless-2010-07-31/include/linux/compat-2.6.36.h	2010-08-01 15:28:26.847223098 +0200
@@ -8,6 +8,11 @@
 #define kparam_block_sysfs_write(a)
 #define kparam_unblock_sysfs_write(a)
 
+struct va_format {
+	const char *fmt;
+	va_list *va;
+};
+
 #endif /* (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,36)) */
 
 #endif /* LINUX_26_36_COMPAT_H */