From nobody Thu Sep 11 14:51:05 2025 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2D55BC001DB for ; Fri, 4 Aug 2023 09:00:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230003AbjHDJAY (ORCPT ); Fri, 4 Aug 2023 05:00:24 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51488 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229798AbjHDI74 (ORCPT ); Fri, 4 Aug 2023 04:59:56 -0400 X-Greylist: delayed 259 seconds by postgrey-1.37 at lindbergh.monkeyblade.net; Fri, 04 Aug 2023 01:54:39 PDT Received: from mxhk.zte.com.cn (mxhk.zte.com.cn [63.216.63.35]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A8800618E; Fri, 4 Aug 2023 01:54:39 -0700 (PDT) Received: from mse-fl2.zte.com.cn (unknown [10.5.228.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mxhk.zte.com.cn (FangMail) with ESMTPS id 4RHKJV4Lvwz5R9jt; Fri, 4 Aug 2023 16:54:02 +0800 (CST) Received: from szxlzmapp06.zte.com.cn ([10.5.230.252]) by mse-fl2.zte.com.cn with SMTP id 3748rdjo016893; Fri, 4 Aug 2023 16:53:39 +0800 (+08) (envelope-from yang.yang29@zte.com.cn) Received: from mapi (szxlzmapp07[null]) by mapi (Zmail) with MAPI id mid14; Fri, 4 Aug 2023 16:53:41 +0800 (CST) Date: Fri, 4 Aug 2023 16:53:41 +0800 (CST) X-Zmail-TransId: 2b0964ccbc95ffffffffefa-19509 X-Mailer: Zmail v1.0 Message-ID: <202308041653414100323@zte.com.cn> Mime-Version: 1.0 From: To: , Cc: , , , , Subject: =?UTF-8?B?W1BBVENIXSBuZXQ6IHRpcGM6IGFkZCBuZXQgZGV2aWNlIHJlZmNvdW50IHRyYWNrZXIgZm9yIGJlYXJlcg==?= X-MAIL: mse-fl2.zte.com.cn 3748rdjo016893 X-Fangmail-Gw-Spam-Type: 0 X-Fangmail-Anti-Spam-Filtered: true X-Fangmail-MID-QID: 64CCBCAA.003/4RHKJV4Lvwz5R9jt Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: xu xin Add net device refcount tracker to the struct tipc_bearer. Signed-off-by: xu xin Reviewed-by: Yang Yang Cc: Kuang Mingfu Reviewed-by: Simon Horman --- net/tipc/bearer.c | 10 +++++----- net/tipc/bearer.h | 1 + 2 files changed, 6 insertions(+), 5 deletions(-) diff --git a/net/tipc/bearer.c b/net/tipc/bearer.c index 2cde375477e3..01ffd1f2337a 100644 --- a/net/tipc/bearer.c +++ b/net/tipc/bearer.c @@ -426,15 +426,15 @@ int tipc_enable_l2_media(struct net *net, struct tipc= _bearer *b, struct net_device *dev; /* Find device with specified name */ - dev =3D dev_get_by_name(net, dev_name); + dev =3D netdev_get_by_name(net, dev_name, &b->devtracker, GFP_KERNEL); if (!dev) return -ENODEV; if (tipc_mtu_bad(dev)) { - dev_put(dev); + netdev_put(dev, &b->devtracker); return -EINVAL; } if (dev =3D=3D net->loopback_dev) { - dev_put(dev); + netdev_put(dev, &b->devtracker); pr_info("Enabling <%s> not permitted\n", b->name); return -EINVAL; } @@ -445,7 +445,7 @@ int tipc_enable_l2_media(struct net *net, struct tipc_b= earer *b, tipc_net_init(net, node_id, 0); } if (!tipc_own_id(net)) { - dev_put(dev); + netdev_put(dev, &b->devtracker); pr_warn("Failed to obtain node identity\n"); return -EINVAL; } @@ -479,7 +479,7 @@ void tipc_disable_l2_media(struct tipc_bearer *b) dev_remove_pack(&b->pt); RCU_INIT_POINTER(dev->tipc_ptr, NULL); synchronize_net(); - dev_put(dev); + netdev_put(dev, &b->devtracker); } /** diff --git a/net/tipc/bearer.h b/net/tipc/bearer.h index 41eac1ee0c09..1adeaf94aa62 100644 --- a/net/tipc/bearer.h +++ b/net/tipc/bearer.h @@ -174,6 +174,7 @@ struct tipc_bearer { u16 encap_hlen; unsigned long up; refcount_t refcnt; + netdevice_tracker devtracker; }; struct tipc_bearer_names { --=20 2.15.2