--- zzzz-none-000/linux-2.6.32.61/lib/rwsem-spinlock.c	2013-06-10 09:43:48.000000000 +0000
+++ ar9-7330-650/linux-2.6.32.61/lib/rwsem-spinlock.c	2011-05-06 12:53:47.000000000 +0000
@@ -231,7 +231,7 @@
 	;
 }
 
-void __sched __down_write(struct rw_semaphore *sem)
+inline void __sched __down_write(struct rw_semaphore *sem)
 {
 	__down_write_nested(sem, 0);
 }