From mboxrd@z Thu Jan 1 00:00:00 1970 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=-19.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 2B770C433E0 for ; Tue, 19 Jan 2021 20:34:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D9FB723121 for ; Tue, 19 Jan 2021 20:34:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729717AbhASUdp (ORCPT ); Tue, 19 Jan 2021 15:33:45 -0500 Received: from mail.kernel.org ([198.145.29.99]:56988 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2391786AbhASU0F (ORCPT ); Tue, 19 Jan 2021 15:26:05 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id B933E2313A; Tue, 19 Jan 2021 20:25:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1611087924; bh=NoicAfwRaUtHrYf5u8ggo5OEU9vn+py/9mjflT9M2F0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ojQpblrgtyY6f2eehG9g5UwQyJPyTt9BbUAdhS3RGbsW8Pa4e41shzLkfPHRVDYOU jZyCdpmOw6gmli5Phmcx3woNoekfKqFDNevUx6RzRyoZruuQGnS4wlHwzL0qV+TOao cKDgNRCUJLXl6xbFi5zlcm4vnHvpvHW0xyC8pZIM4SRx+iDQDT2PdWY/pBbZhcHMHx BS15koinx42AN4A6fO+M3D1nNPGhyvJfEwSovi0CwmiiaLsD5v0b2DB2VkiOPtMRL9 sDOrcdWHyZLrIhBv61WGJOIRbLMAxXTIqKHrdph35/sYzkSJd9IVFaPGCov2NM1vpe GWm5FHPp05rVA== From: Jakub Kicinski To: davem@davemloft.net Cc: netdev@vger.kernel.org, Jakub Kicinski Subject: [PATCH net-next v2 2/4] net: inline rollback_registered() Date: Tue, 19 Jan 2021 12:25:19 -0800 Message-Id: <20210119202521.3108236-3-kuba@kernel.org> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20210119202521.3108236-1-kuba@kernel.org> References: <20210119202521.3108236-1-kuba@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org rollback_registered() is a local helper, it's common for driver code to call unregister_netdevice_queue(dev, NULL) when they want to unregister netdevices under rtnl_lock. Inline rollback_registered() and adjust the only remaining caller. Signed-off-by: Jakub Kicinski --- net/core/dev.c | 17 ++++++----------- 1 file changed, 6 insertions(+), 11 deletions(-) diff --git a/net/core/dev.c b/net/core/dev.c index 5f928b51c6b0..85e9d4b7ddf2 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -9552,15 +9552,6 @@ static void rollback_registered_many(struct list_head *head) } } -static void rollback_registered(struct net_device *dev) -{ - LIST_HEAD(single); - - list_add(&dev->unreg_list, &single); - rollback_registered_many(&single); - list_del(&single); -} - static netdev_features_t netdev_sync_upper_features(struct net_device *lower, struct net_device *upper, netdev_features_t features) { @@ -10105,7 +10096,7 @@ int register_netdevice(struct net_device *dev) if (ret) { /* Expect explicit free_netdev() on failure */ dev->needs_free_netdev = false; - rollback_registered(dev); + unregister_netdevice_queue(dev, NULL); goto out; } /* @@ -10727,7 +10718,11 @@ void unregister_netdevice_queue(struct net_device *dev, struct list_head *head) if (head) { list_move_tail(&dev->unreg_list, head); } else { - rollback_registered(dev); + LIST_HEAD(single); + + list_add(&dev->unreg_list, &single); + rollback_registered_many(&single); + list_del(&single); } } EXPORT_SYMBOL(unregister_netdevice_queue); -- 2.26.2