From 19e49bc2e984bd065719fc3595f35368b3ae87cd Mon Sep 17 00:00:00 2001
From: Juan Quintela <quintela@redhat.com>
Date: Wed, 18 Nov 2020 09:37:31 +0100
Subject: [PATCH] failover: Remove primary_device_opts

It was really only used once, in failover_add_primary().  Just search
for it on global opts when it is needed.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Message-Id: <20201118083748.1328-11-quintela@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 hw/net/virtio-net.c            | 21 +++++----------------
 include/hw/virtio/virtio-net.h |  1 -
 2 files changed, 5 insertions(+), 17 deletions(-)

diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c
index e334f05352..2a99b0e0f6 100644
--- a/hw/net/virtio-net.c
+++ b/hw/net/virtio-net.c
@@ -791,17 +791,17 @@ static inline uint64_t virtio_net_supported_guest_offloads(VirtIONet *n)
 static void failover_add_primary(VirtIONet *n, Error **errp)
 {
     Error *err = NULL;
+    QemuOpts *opts;
 
     if (n->primary_dev) {
         return;
     }
 
-    n->primary_device_opts = qemu_opts_find(qemu_find_opts("device"),
-                                            n->primary_device_id);
-    if (n->primary_device_opts) {
-        n->primary_dev = qdev_device_add(n->primary_device_opts, &err);
+    opts = qemu_opts_find(qemu_find_opts("device"), n->primary_device_id);
+    if (opts) {
+        n->primary_dev = qdev_device_add(opts, &err);
         if (err) {
-            qemu_opts_del(n->primary_device_opts);
+            qemu_opts_del(opts);
         }
     } else {
         error_setg(errp, "Primary device not found");
@@ -856,7 +856,6 @@ static DeviceState *virtio_connect_failover_devices(VirtIONet *n, Error **errp)
     prim_dev = virtio_net_find_primary(n, &err);
     if (prim_dev) {
         n->primary_device_id = g_strdup(prim_dev->id);
-        n->primary_device_opts = prim_dev->opts;
     } else {
         error_propagate(errp, err);
     }
@@ -3113,14 +3112,6 @@ static bool failover_replug_primary(VirtIONet *n, Error **errp)
     if (!pdev->partially_hotplugged) {
         return true;
     }
-    if (!n->primary_device_opts) {
-        n->primary_device_opts = qemu_opts_from_qdict(qemu_find_opts("device"),
-                                                      n->primary_device_dict,
-                                                      errp);
-        if (!n->primary_device_opts) {
-            return false;
-        }
-    }
     primary_bus = n->primary_dev->parent_bus;
     if (!primary_bus) {
         error_setg(errp, "virtio_net: couldn't find primary bus");
@@ -3211,8 +3202,6 @@ static int virtio_net_primary_should_be_hidden(DeviceListener *listener,
         goto out;
     }
 
-    n->primary_device_opts = device_opts;
-
     /* failover_primary_hidden is set during feature negotiation */
     hide = qatomic_read(&n->failover_primary_hidden);
 
diff --git a/include/hw/virtio/virtio-net.h b/include/hw/virtio/virtio-net.h
index ca68be759f..7159e6c0a0 100644
--- a/include/hw/virtio/virtio-net.h
+++ b/include/hw/virtio/virtio-net.h
@@ -202,7 +202,6 @@ struct VirtIONet {
     AnnounceTimer announce_timer;
     bool needs_vnet_hdr_swap;
     bool mtu_bypass_backend;
-    QemuOpts *primary_device_opts;
     QDict *primary_device_dict;
     DeviceState *primary_dev;
     char *primary_device_id;