[ 006/100] xenbus: fix compile failure on ARM with Xen enabled

[Greg Kroah-Hartman]

3.8-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Steven Noonan <steven@xxxxxxxxxxxxxx>

commit 45e27161c62216c163880d7aed751cb55a65c8e9 upstream.

Adding an include of linux/mm.h resolves this:
	drivers/xen/xenbus/xenbus_client.c: In function âxenbus_map_ring_valloc_hvmâ:
	drivers/xen/xenbus/xenbus_client.c:532:66: error: implicit declaration of function âpage_to_sectionâ [-Werror=implicit-function-declaration]

Signed-off-by: Steven Noonan <steven@xxxxxxxxxxxxxx>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 drivers/xen/xenbus/xenbus_client.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/xen/xenbus/xenbus_client.c
+++ b/drivers/xen/xenbus/xenbus_client.c
@@ -30,6 +30,7 @@
  * IN THE SOFTWARE.
  */
 
+#include <linux/mm.h>
 #include <linux/slab.h>
 #include <linux/types.h>
 #include <linux/spinlock.h>


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