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net: simplify net_client_init1() 

Drop the union and move the hubport creation into the !is_netdev case.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-id: 1432743412-15943-6-git-send-email-stefanha@redhat.com
This commit is contained in:
Stefan Hajnoczi 2015-05-27 17:16:52 +01:00
parent 4ef0defbad
commit 1e81aba5ac
1 changed files with 16 additions and 22 deletions
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38
net/net.c
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@ -913,18 +913,14 @@ static int (* const net_client_init_fun[NET_CLIENT_OPTIONS_KIND_MAX])(
static int net_client_init1(const void *object, int is_netdev, Error **errp) static int net_client_init1(const void *object, int is_netdev, Error **errp)
{ {
union {
const Netdev *netdev;
const NetLegacy *net;
} u;
const NetClientOptions *opts; const NetClientOptions *opts;
const char *name; const char *name;
NetClientState *peer = NULL; NetClientState *peer = NULL;
if (is_netdev) { if (is_netdev) {
u.netdev = object; const Netdev *netdev = object;
opts = u.netdev->opts; opts = netdev->opts;
name = u.netdev->id; name = netdev->id;
if (opts->kind == NET_CLIENT_OPTIONS_KIND_DUMP || if (opts->kind == NET_CLIENT_OPTIONS_KIND_DUMP ||
opts->kind == NET_CLIENT_OPTIONS_KIND_NIC || opts->kind == NET_CLIENT_OPTIONS_KIND_NIC ||
@ -934,19 +930,19 @@ static int net_client_init1(const void *object, int is_netdev, Error **errp)
return -1; return -1;
} }
} else { } else {
u.net = object; const NetLegacy *net = object;
opts = u.net->opts; opts = net->opts;
/* missing optional values have been initialized to "all bits zero" */
name = net->has_id ? net->id : net->name;
if (opts->kind == NET_CLIENT_OPTIONS_KIND_NONE) {
return 0; /* nothing to do */
}
if (opts->kind == NET_CLIENT_OPTIONS_KIND_HUBPORT) { if (opts->kind == NET_CLIENT_OPTIONS_KIND_HUBPORT) {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "type", error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "type",
"a net type"); "a net type");
return -1; return -1;
} }
/* missing optional values have been initialized to "all bits zero" */
name = u.net->has_id ? u.net->id : u.net->name;
if (opts->kind == NET_CLIENT_OPTIONS_KIND_NONE) {
return 0; /* nothing to do */
}
if (!net_client_init_fun[opts->kind]) { if (!net_client_init_fun[opts->kind]) {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "type", error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "type",
@ -954,14 +950,12 @@ static int net_client_init1(const void *object, int is_netdev, Error **errp)
"into this binary)"); "into this binary)");
return -1; return -1;
} }
}
/* Do not add to a vlan if it's a -netdev or a nic with a netdev= /* Do not add to a vlan if it's a nic with a netdev= parameter. */
* parameter. */ if (opts->kind != NET_CLIENT_OPTIONS_KIND_NIC ||
if (!is_netdev && !opts->nic->has_netdev) {
(opts->kind != NET_CLIENT_OPTIONS_KIND_NIC || peer = net_hub_add_port(net->has_vlan ? net->vlan : 0, NULL);
!opts->nic->has_netdev)) { }
peer = net_hub_add_port(u.net->has_vlan ? u.net->vlan : 0, NULL);
} }
if (net_client_init_fun[opts->kind](opts, name, peer, errp) < 0) { if (net_client_init_fun[opts->kind](opts, name, peer, errp) < 0) {