From patchwork Mon Nov 16 07:44:31 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Martin Schiller X-Patchwork-Id: 325162 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 93ED9C55ABD for ; Mon, 16 Nov 2020 07:45:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 461DF2225E for ; Mon, 16 Nov 2020 07:45:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727724AbgKPHoq (ORCPT ); Mon, 16 Nov 2020 02:44:46 -0500 Received: from mxout70.expurgate.net ([194.37.255.70]:49903 "EHLO mxout70.expurgate.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727277AbgKPHop (ORCPT ); Mon, 16 Nov 2020 02:44:45 -0500 Received: from [127.0.0.1] (helo=localhost) by relay.expurgate.net with smtp (Exim 4.90) (envelope-from ) id 1keZBn-000CTm-PX; Mon, 16 Nov 2020 08:44:39 +0100 Received: from [195.243.126.94] (helo=securemail.tdt.de) by relay.expurgate.net with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90) (envelope-from ) id 1keZBm-0003to-UG; Mon, 16 Nov 2020 08:44:38 +0100 Received: from securemail.tdt.de (localhost [127.0.0.1]) by securemail.tdt.de (Postfix) with ESMTP id E981B240049; Mon, 16 Nov 2020 08:44:37 +0100 (CET) Received: from mail.dev.tdt.de (unknown [10.2.4.42]) by securemail.tdt.de (Postfix) with ESMTP id 8D732240047; Mon, 16 Nov 2020 08:44:37 +0100 (CET) Received: from mschiller01.dev.tdt.de (unknown [10.2.3.20]) by mail.dev.tdt.de (Postfix) with ESMTPSA id 3DA3721E02; Mon, 16 Nov 2020 08:44:37 +0100 (CET) From: Martin Schiller To: davem@davemloft.net, kuba@kernel.org Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Martin Schiller Subject: [PATCH] net/tun: Call notifiers before and after changing device type Date: Mon, 16 Nov 2020 08:44:31 +0100 Message-ID: <20201116074431.25305-1-ms@dev.tdt.de> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 X-purgate-ID: 151534::1605512679-0000CF01-7F1DFA1E/0/0 X-purgate-type: clean X-purgate: clean Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Signed-off-by: Martin Schiller --- drivers/net/tun.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/tun.c b/drivers/net/tun.c index be69d272052f..8253c5b03105 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -3124,9 +3124,11 @@ static long __tun_chr_ioctl(struct file *file, unsigned int cmd, "Linktype set failed because interface is up\n"); ret = -EBUSY; } else { + call_netdevice_notifiers(NETDEV_PRE_TYPE_CHANGE, tun->dev); tun->dev->type = (int) arg; netif_info(tun, drv, tun->dev, "linktype set to %d\n", tun->dev->type); + call_netdevice_notifiers(NETDEV_POST_TYPE_CHANGE, tun->dev); ret = 0; } break;