[PATCH 3.17 044/146] Drivers: hv: util: Properly pack the data for file copy functionality

[Greg Kroah-Hartman]

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

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

From: "K. Y. Srinivasan" <kys@xxxxxxxxxxxxx>

commit bc5a5b02331a3175a5fca20a4beba249e573b672 upstream.

Properly pack the data for file copy functionality. Patch based on
investigation done by Matej Muzila <mmuzila@xxxxxxxxxx>

Signed-off-by: K. Y. Srinivasan <kys@xxxxxxxxxxxxx>
Reported-by: <qge@xxxxxxxxxx>
Acked-by: Jason Wang <jasowang@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 include/uapi/linux/hyperv.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/include/uapi/linux/hyperv.h
+++ b/include/uapi/linux/hyperv.h
@@ -137,7 +137,7 @@ struct hv_do_fcopy {
 	__u64	offset;
 	__u32	size;
 	__u8	data[DATA_FRAGMENT];
-};
+} __attribute__((packed));
 
 /*
  * An implementation of HyperV key value pair (KVP) functionality for Linux.


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