File 0343-9pfs-factor-out-virtio_9p_push_and_.patch of Package qemu.8405

From 957c9266992b929ce4225d7aa798f2e666fc2028 Mon Sep 17 00:00:00 2001
From: Wei Liu <wei.liu2@citrix.com>
Date: Thu, 7 Jan 2016 18:30:29 +0000
Subject: [PATCH] 9pfs: factor out virtio_9p_push_and_notify

The new function resides in virtio specific file.

Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
cherry picked from commit 0d3716b4e6ba81e8632c4ca698488b6e843f9daf)
[BR: Fix and/or infrastructure for BSC#1020427 CVE-2016-9602]
Signed-off-by: Bruce Rogers <brogers@suse.com>
---
 hw/9pfs/virtio-9p-device.c | 11 +++++++++++
 hw/9pfs/virtio-9p.c        |  8 +-------
 hw/9pfs/virtio-9p.h        |  2 ++
 3 files changed, 14 insertions(+), 7 deletions(-)

diff --git a/hw/9pfs/virtio-9p-device.c b/hw/9pfs/virtio-9p-device.c
index 7ad4e99b07..0660e0b751 100644
--- a/hw/9pfs/virtio-9p-device.c
+++ b/hw/9pfs/virtio-9p-device.c
@@ -20,6 +20,17 @@
 #include "virtio-9p-coth.h"
 #include "hw/virtio/virtio-access.h"
 
+void virtio_9p_push_and_notify(V9fsPDU *pdu)
+{
+    V9fsState *s = pdu->s;
+
+    /* push onto queue and notify */
+    virtqueue_push(s->vq, &pdu->elem, pdu->size);
+
+    /* FIXME: we should batch these completions */
+    virtio_notify(VIRTIO_DEVICE(s), s->vq);
+}
+
 static uint32_t virtio_9p_get_features(VirtIODevice *vdev, uint32_t features)
 {
     features |= 1 << VIRTIO_9P_MOUNT_TAG;
diff --git a/hw/9pfs/virtio-9p.c b/hw/9pfs/virtio-9p.c
index 70f872fe8c..aa10483dd3 100644
--- a/hw/9pfs/virtio-9p.c
+++ b/hw/9pfs/virtio-9p.c
@@ -63,13 +63,7 @@ ssize_t pdu_unmarshal(V9fsPDU *pdu, size_t offset, const char *fmt, ...)
 
 static void pdu_push_and_notify(V9fsPDU *pdu)
 {
-    V9fsState *s = pdu->s;
-
-    /* push onto queue and notify */
-    virtqueue_push(s->vq, &pdu->elem, pdu->size);
-
-    /* FIXME: we should batch these completions */
-    virtio_notify(VIRTIO_DEVICE(s), s->vq);
+    virtio_9p_push_and_notify(pdu);
 }
 
 static int omode_to_uflags(int8_t mode)
diff --git a/hw/9pfs/virtio-9p.h b/hw/9pfs/virtio-9p.h
index b4d344af95..a1ac3980ee 100644
--- a/hw/9pfs/virtio-9p.h
+++ b/hw/9pfs/virtio-9p.h
@@ -6,6 +6,8 @@
 #include "9p.h"
 
 extern void handle_9p_output(VirtIODevice *vdev, VirtQueue *vq);
+extern void virtio_9p_push_and_notify(V9fsPDU *pdu);
+
 ssize_t virtio_pdu_vmarshal(V9fsPDU *pdu, size_t offset,
                             const char *fmt, va_list ap);
 ssize_t virtio_pdu_vunmarshal(V9fsPDU *pdu, size_t offset,