From patchwork Thu Mar 18 18:37:52 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Antoine Tenart X-Patchwork-Id: 405334 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 1B85AC43381 for ; Thu, 18 Mar 2021 18:39:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C93FB64F1B for ; Thu, 18 Mar 2021 18:39:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232760AbhCRSjB (ORCPT ); Thu, 18 Mar 2021 14:39:01 -0400 Received: from mail.kernel.org ([198.145.29.99]:44062 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232733AbhCRSie (ORCPT ); Thu, 18 Mar 2021 14:38:34 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 695076023B; Thu, 18 Mar 2021 18:38:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1616092714; bh=uzN94fHajMiIsjzbQO3pvYjF0ozKYC3ReK8q4UiFoiQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=jQ80vv+bj9tUCXPRMUmGV3VL48u8qHv4Aq1OjU2LD5hyjnKb4BtqRHTJ0zTdcdOr2 wfCOE09n0tglqaJxR9XgLs3YRwN0Py6JY5zs8BoeCg7mo1gcYd0jnodcDdubQNQTI1 +B+V+7bwoNEMg2PZi0oaGA7KCdx7zkkwGODxCmsnrNpe2C7C1WJxASdv/v0iTmcYD2 yv2Ousg/7PoQKoC8cjgVQHBeeTmkzFrTdn/WJuQLjisLxLmWMtRL1ytphAWd3oE8bN kMPyuno0zB6S17Y8AQs0hzjd4SwN2OJHhleELYDL7rx6sxtsFnhL5flyzlACEUd4h1 rqMe6F3TFmc5g== From: Antoine Tenart To: davem@davemloft.net, kuba@kernel.org, alexander.duyck@gmail.com Cc: Antoine Tenart , netdev@vger.kernel.org Subject: [PATCH net-next v4 13/13] net: NULL the old xps map entries when freeing them Date: Thu, 18 Mar 2021 19:37:52 +0100 Message-Id: <20210318183752.2612563-14-atenart@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210318183752.2612563-1-atenart@kernel.org> References: <20210318183752.2612563-1-atenart@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org In __netif_set_xps_queue, old map entries from the old dev_maps are freed but their corresponding entry in the old dev_maps aren't NULLed. Fix this. Signed-off-by: Antoine Tenart --- net/core/dev.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/core/dev.c b/net/core/dev.c index d5f6ba209f1e..4961fc2e9b19 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -2764,6 +2764,7 @@ int __netif_set_xps_queue(struct net_device *dev, const unsigned long *mask, continue; } + RCU_INIT_POINTER(dev_maps->attr_map[tci], NULL); kfree_rcu(map, rcu); } }