From d3be4b57cefde105299e234f0659b77f37920c72 Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Tue, 21 Feb 2017 21:46:27 +0100 Subject: [PATCH] net: Flatten simple union NetLegacyOptions Simple unions are simpler than flat unions in the schema, but more complicated in C and on the QMP wire: there's extra indirection in C and extra nesting on the wire, both pointless. They're best avoided in new code. NetLegacyOptions isn't new, but it's only used internally, not in QMP. Convert it to a flat union. Signed-off-by: Markus Armbruster Reviewed-by: Eric Blake Message-Id: <1487709988-14322-3-git-send-email-armbru@redhat.com> --- net/net.c | 44 ++++++++++++++++++++++---------------------- qapi-schema.json | 11 +++++++++++ 2 files changed, 33 insertions(+), 22 deletions(-) diff --git a/net/net.c b/net/net.c index fb7af3a432..0ac3b9e80c 100644 --- a/net/net.c +++ b/net/net.c @@ -993,47 +993,47 @@ static int net_client_init1(const void *object, bool is_netdev, Error **errp) /* Map the old options to the new flat type */ switch (opts->type) { - case NET_LEGACY_OPTIONS_KIND_NONE: + case NET_LEGACY_OPTIONS_TYPE_NONE: return 0; /* nothing to do */ - case NET_LEGACY_OPTIONS_KIND_NIC: + case NET_LEGACY_OPTIONS_TYPE_NIC: legacy.type = NET_CLIENT_DRIVER_NIC; - legacy.u.nic = *opts->u.nic.data; + legacy.u.nic = opts->u.nic; break; - case NET_LEGACY_OPTIONS_KIND_USER: + case NET_LEGACY_OPTIONS_TYPE_USER: legacy.type = NET_CLIENT_DRIVER_USER; - legacy.u.user = *opts->u.user.data; + legacy.u.user = opts->u.user; break; - case NET_LEGACY_OPTIONS_KIND_TAP: + case NET_LEGACY_OPTIONS_TYPE_TAP: legacy.type = NET_CLIENT_DRIVER_TAP; - legacy.u.tap = *opts->u.tap.data; + legacy.u.tap = opts->u.tap; break; - case NET_LEGACY_OPTIONS_KIND_L2TPV3: + case NET_LEGACY_OPTIONS_TYPE_L2TPV3: legacy.type = NET_CLIENT_DRIVER_L2TPV3; - legacy.u.l2tpv3 = *opts->u.l2tpv3.data; + legacy.u.l2tpv3 = opts->u.l2tpv3; break; - case NET_LEGACY_OPTIONS_KIND_SOCKET: + case NET_LEGACY_OPTIONS_TYPE_SOCKET: legacy.type = NET_CLIENT_DRIVER_SOCKET; - legacy.u.socket = *opts->u.socket.data; + legacy.u.socket = opts->u.socket; break; - case NET_LEGACY_OPTIONS_KIND_VDE: + case NET_LEGACY_OPTIONS_TYPE_VDE: legacy.type = NET_CLIENT_DRIVER_VDE; - legacy.u.vde = *opts->u.vde.data; + legacy.u.vde = opts->u.vde; break; - case NET_LEGACY_OPTIONS_KIND_DUMP: + case NET_LEGACY_OPTIONS_TYPE_DUMP: legacy.type = NET_CLIENT_DRIVER_DUMP; - legacy.u.dump = *opts->u.dump.data; + legacy.u.dump = opts->u.dump; break; - case NET_LEGACY_OPTIONS_KIND_BRIDGE: + case NET_LEGACY_OPTIONS_TYPE_BRIDGE: legacy.type = NET_CLIENT_DRIVER_BRIDGE; - legacy.u.bridge = *opts->u.bridge.data; + legacy.u.bridge = opts->u.bridge; break; - case NET_LEGACY_OPTIONS_KIND_NETMAP: + case NET_LEGACY_OPTIONS_TYPE_NETMAP: legacy.type = NET_CLIENT_DRIVER_NETMAP; - legacy.u.netmap = *opts->u.netmap.data; + legacy.u.netmap = opts->u.netmap; break; - case NET_LEGACY_OPTIONS_KIND_VHOST_USER: + case NET_LEGACY_OPTIONS_TYPE_VHOST_USER: legacy.type = NET_CLIENT_DRIVER_VHOST_USER; - legacy.u.vhost_user = *opts->u.vhost_user.data; + legacy.u.vhost_user = opts->u.vhost_user; break; default: abort(); @@ -1048,7 +1048,7 @@ static int net_client_init1(const void *object, bool is_netdev, Error **errp) /* Do not add to a vlan if it's a nic with a netdev= parameter. */ if (netdev->type != NET_CLIENT_DRIVER_NIC || - !opts->u.nic.data->has_netdev) { + !opts->u.nic.has_netdev) { peer = net_hub_add_port(net->has_vlan ? net->vlan : 0, NULL); } diff --git a/qapi-schema.json b/qapi-schema.json index a448ea8767..5347781eca 100644 --- a/qapi-schema.json +++ b/qapi-schema.json @@ -3958,6 +3958,15 @@ '*name': 'str', 'opts': 'NetLegacyOptions' } } +## +# @NetLegacyOptionsType: +# +# Since: 1.2 +## +{ 'enum': 'NetLegacyOptionsType', + 'data': ['none', 'nic', 'user', 'tap', 'l2tpv3', 'socket', 'vde', + 'dump', 'bridge', 'netmap', 'vhost-user'] } + ## # @NetLegacyOptions: # @@ -3966,6 +3975,8 @@ # Since: 1.2 ## { 'union': 'NetLegacyOptions', + 'base': { 'type': 'NetLegacyOptionsType' }, + 'discriminator': 'type', 'data': { 'none': 'NetdevNoneOptions', 'nic': 'NetLegacyNicOptions',