From d67ce7da3b1eda838db7bdca86d7ec28ef37068e Mon Sep 17 00:00:00 2001
From: Paul Durrant <Paul.Durrant@citrix.com>
Date: Thu, 2 Mar 2017 12:54:25 +0000
Subject: [PATCH] xen-netback: keep a local pointer for vif in
backend_disconnect()
This patch replaces use of 'be->vif' with 'vif' and hence generally
makes the function look tidier. No semantic change.
Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
drivers/net/xen-netback/xenbus.c | 32 ++++++++++++++++++--------------
1 file changed, 18 insertions(+), 14 deletions(-)
diff --git a/drivers/net/xen-netback/xenbus.c b/drivers/net/xen-netback/xenbus.c
index bb854f92f5a5c..d82ddc913b4c9 100644
--- a/drivers/net/xen-netback/xenbus.c
+++ b/drivers/net/xen-netback/xenbus.c
@@ -492,24 +492,28 @@ static int backend_create_xenvif(struct backend_info *be)
static void backend_disconnect(struct backend_info *be)
{
- if (be->vif) {
+ struct xenvif *vif = be->vif;
+
+ if (vif) {
unsigned int queue_index;
- xen_unregister_watchers(be->vif);
+ xen_unregister_watchers(vif);
#ifdef CONFIG_DEBUG_FS
- xenvif_debugfs_delif(be->vif);
+ xenvif_debugfs_delif(vif);
#endif /* CONFIG_DEBUG_FS */
- xenvif_disconnect_data(be->vif);
- for (queue_index = 0; queue_index < be->vif->num_queues; ++queue_index)
- xenvif_deinit_queue(&be->vif->queues[queue_index]);
-
- spin_lock(&be->vif->lock);
- vfree(be->vif->queues);
- be->vif->num_queues = 0;
- be->vif->queues = NULL;
- spin_unlock(&be->vif->lock);
-
- xenvif_disconnect_ctrl(be->vif);
+ xenvif_disconnect_data(vif);
+ for (queue_index = 0;
+ queue_index < vif->num_queues;
+ ++queue_index)
+ xenvif_deinit_queue(&vif->queues[queue_index]);
+
+ spin_lock(&vif->lock);
+ vfree(vif->queues);
+ vif->num_queues = 0;
+ vif->queues = NULL;
+ spin_unlock(&vif->lock);
+
+ xenvif_disconnect_ctrl(vif);
}
}
--
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