net: openvswitch: Check vport netdev name
Ensure that the provided netdev name is not one of its aliases to prevent unnecessary creation and destruction of the vport by ovs-vswitchd. Signed-off-by: Jun Gu <jun.gu@easystack.cn> Acked-by: Eelco Chaudron <echaudro@redhat.com> Link: https://lore.kernel.org/r/20240419061425.132723-1-jun.gu@easystack.cn Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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@ -78,7 +78,10 @@ struct vport *ovs_netdev_link(struct vport *vport, const char *name)
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int err;
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int err;
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vport->dev = dev_get_by_name(ovs_dp_get_net(vport->dp), name);
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vport->dev = dev_get_by_name(ovs_dp_get_net(vport->dp), name);
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if (!vport->dev) {
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/* Ensure that the device exists and that the provided
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* name is not one of its aliases.
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*/
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if (!vport->dev || strcmp(name, ovs_vport_name(vport))) {
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err = -ENODEV;
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err = -ENODEV;
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goto error_free_vport;
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goto error_free_vport;
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}
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}
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