linux-kernel - [PATCH 3.16 036/127] Drivers: hv: util: Properly pack the data for file copy functionality

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Date:	Tue, 28 Oct 2014 11:34:31 +0800
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, "K. Y. Srinivasan" <kys@...rosoft.com>,
	qge@...hat.com, Jason Wang <jasowang@...hat.com>
Subject: [PATCH 3.16 036/127] Drivers: hv: util: Properly pack the data for file copy functionality

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

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

From: "K. Y. Srinivasan" <kys@...rosoft.com>

commit bc5a5b02331a3175a5fca20a4beba249e573b672 upstream.

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

Signed-off-by: K. Y. Srinivasan <kys@...rosoft.com>
Reported-by: <qge@...hat.com>
Acked-by: Jason Wang <jasowang@...hat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 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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