linux-kernel - [PATCH 69/78] virtio: don't expose u16 in userspace api

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Date:	Tue, 28 May 2013 14:20:18 -0700
From:	Kamal Mostafa <kamal@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Stephen Hemminger <stephen@...workplumber.org>,
	"David S. Miller" <davem@...emloft.net>,
	Kamal Mostafa <kamal@...onical.com>
Subject: [PATCH 69/78] virtio: don't expose u16 in userspace api

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

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

From: stephen hemminger <stephen@...workplumber.org>

[ Upstream commit 77d21f23a1e4db8639e3916547c903a3b3c7a07c ]

Programs using virtio headers outside of kernel will no longer
build because u16 type does not exist in userspace. All user ABI
must use __u16 typedef instead.

Bug introduce by:
  commit 986a4f4d452dec004697f667439d27c3fda9c928
  Author: Jason Wang <jasowang@...hat.com>
  Date:   Fri Dec 7 07:04:56 2012 +0000

    virtio_net: multiqueue support

Signed-off-by: Stephen Hemminger <stephen@...workplumber.org>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Kamal Mostafa <kamal@...onical.com>
---
 include/uapi/linux/virtio_net.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/uapi/linux/virtio_net.h b/include/uapi/linux/virtio_net.h
index 848e358..f3857ff 100644
--- a/include/uapi/linux/virtio_net.h
+++ b/include/uapi/linux/virtio_net.h
@@ -185,7 +185,7 @@ struct virtio_net_ctrl_mac {
  * specified.
  */
 struct virtio_net_ctrl_mq {
-	u16 virtqueue_pairs;
+	__u16 virtqueue_pairs;
 };
 
 #define VIRTIO_NET_CTRL_MQ   4
-- 
1.8.1.2

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