static int rxe_param_set_add(const char *val, const struct kernel_param *kp) { int len; int err = 0; char intf[32]; struct net_device *ndev = NULL; struct rxe_dev *rxe; len = sanitize_arg(val, intf, sizeof(intf)); if (!len) { pr_err("add: invalid interface name\n"); err = -EINVAL; goto err; } ndev = dev_get_by_name(&init_net, intf); if (!ndev) { pr_err("interface %s not found\n", intf); err = -EINVAL; goto err; } if (net_to_rxe(ndev)) { pr_err("already configured on %s\n", intf); err = -EINVAL; goto err; } rxe = rxe_net_add(ndev); if (!rxe) { pr_err("failed to add %s\n", intf); err = -EINVAL; goto err; } rxe_set_port_state(ndev); pr_info("added %s to %s\n", rxe->ib_dev.name, intf); err: if (ndev) dev_put(ndev); return err; }
static int rxe_newlink(const char *ibdev_name, struct net_device *ndev) { struct rxe_dev *exists; int err = 0; exists = rxe_get_dev_from_net(ndev); if (exists) { ib_device_put(&exists->ib_dev); pr_err("already configured on %s\n", ndev->name); err = -EEXIST; goto err; } err = rxe_net_add(ibdev_name, ndev); if (err) { pr_err("failed to add %s\n", ndev->name); goto err; } err: return err; }