fix building crash driver on s390

[Dan Horák]

Hi,

currently the crash driver is disabled in rawhide, but enabled as
module in f20 and stabilization branch. The following snippet make it
build on s390

diff -up a/arch/s390/mm/maccess.c.crash b/arch/s390/mm/maccess.c
--- a/arch/s390/mm/maccess.c.crash	2013-11-26 10:51:55.188222879 -0500
+++ b/arch/s390/mm/maccess.c	2013-11-26 10:52:43.718223592 -0500
@@ -228,3 +228,6 @@ void unxlate_dev_mem_ptr(unsigned long a
 	if ((void *) addr != buf)
 		free_page((unsigned long) buf);
 }
+
+EXPORT_SYMBOL(xlate_dev_mem_ptr);
+EXPORT_SYMBOL(unxlate_dev_mem_ptr);

I think it should get appended to the crash driver patch.


		Dan