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=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no 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 A1B60C3A59E for ; Wed, 21 Aug 2019 12:40:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7F931233A0 for ; Wed, 21 Aug 2019 12:40:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727136AbfHUMkg convert rfc822-to-8bit (ORCPT ); Wed, 21 Aug 2019 08:40:36 -0400 Received: from mx2.suse.de ([195.135.220.15]:59388 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726484AbfHUMkg (ORCPT ); Wed, 21 Aug 2019 08:40:36 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 43AA6AFCE; Wed, 21 Aug 2019 12:40:34 +0000 (UTC) Date: Wed, 21 Aug 2019 14:40:33 +0200 From: Thomas Bogendoerfer To: Jakub Kicinski Cc: Jonathan Corbet , Ralf Baechle , Paul Burton , James Hogan , Dmitry Torokhov , Lee Jones , "David S. Miller" , Srinivas Kandagatla , Alessandro Zummo , Alexandre Belloni , Greg Kroah-Hartman , Jiri Slaby , Evgeniy Polyakov , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mips@vger.kernel.org, linux-input@vger.kernel.org, netdev@vger.kernel.org, linux-rtc@vger.kernel.org, linux-serial@vger.kernel.org Subject: Re: [PATCH v5 11/17] net: sgi: ioc3-eth: no need to stop queue set_multicast_list Message-Id: <20190821144033.2e206cb18b1dfd10377357c2@suse.de> In-Reply-To: <20190819170440.37ff18d4@cakuba.netronome.com> References: <20190819163144.3478-1-tbogendoerfer@suse.de> <20190819163144.3478-12-tbogendoerfer@suse.de> <20190819170440.37ff18d4@cakuba.netronome.com> X-Mailer: Sylpheed 3.5.1 (GTK+ 2.24.31; x86_64-suse-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8BIT Sender: linux-mips-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org On Mon, 19 Aug 2019 17:04:53 -0700 Jakub Kicinski wrote: > On Mon, 19 Aug 2019 18:31:34 +0200, Thomas Bogendoerfer wrote: > > netif_stop_queue()/netif_wake_qeue() aren't needed for changing > > multicast filters. Use spinlocks instead for proper protection > > of private struct. > > > > I thought it may protect ip->emcr, but that one is accessed with no > locking from the ioc3_timer() -> ioc3_setup_duplex() path.. it should protect ip->emcr ... I'll add spin_lock/unlock to setup_duplex and respin the patch. Thomas. -- SUSE Linux GmbH GF: Felix Imendörffer, Mary Higgins, Sri Rasiah HRB 21284 (AG Nürnberg)