Received: by 2002:a25:b794:0:0:0:0:0 with SMTP id n20csp3062078ybh; Mon, 5 Aug 2019 11:19:32 -0700 (PDT) X-Google-Smtp-Source: APXvYqyjZD0Ujinwl5crb5aTn0QFek6D3xvV/DYdNoySDLq3a1HN8Oue0UbAcsHEqeXHZlH/1f95 X-Received: by 2002:a17:902:e4:: with SMTP id a91mr48886975pla.150.1565029172333; Mon, 05 Aug 2019 11:19:32 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1565029172; cv=none; d=google.com; s=arc-20160816; b=qt4e0XIlU1nY3T1y8H0G9U/0L+cigebM9P7EXeEdDVMqwy3VT5O/wdlT5/CDSqiHJl TmPLcQjgG5WLoCPgPbtRGsz1VyRJLq9m3iXR/Y2nvAa2QXr2zyRXJytM6RP17G8eFJvs 6A+twoJEbBvuvppRO0PSjUjjhh1IEG9Bb1TmE81yk0t5Gld8jzV1FBdRBcKHk3MupeUE 7uaAUYJHyLftXsI87kHCQcerHOXe+3r7SHuewbzQVb+Z/DZ15Y61+E8XWTmSje3bxnpZ FfjP7PRYr7lSjGNJCYv09aiRh6XWyGfb2gL/Snza9NMhXhYOSIHF0MF0Jvglubif/XMi qh+A== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version; bh=5iD60MN3ezKI1+xt5FlPDcJaTEoPJLW96DLDKH2MmR0=; b=JTiKGVL+jMaoYOBm1rodEiS7UABHmvqLCDKLHim23cB7b/ogmpS/lNXL8s0j28SAMi iwTZbZwb+052HcHd73kbM9VqFdnYr6kF6hut+7SnYmLawCDT3kEM5Un06dei4CxpN7Bb srApFNT9dLH30jvO1XnD/S+X2HsKJu4rapWFCrrXvhjaOgqknF3iAI2UIUo90yi4OSjr PvZcgURes+TOHIiCfhM1QLgZpBiEOqjT95Ynzfzti5wlHr+CI+8vs0qRi7LordrQCkQI gQIRfqGYJpwhFDsyY9dsuv0cDxooSEH7QvpKyNPJ50QCqsFiNSOvatSX4sPy2Tp/Fjdn Ap0Q== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=redhat.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id t4si43663800plq.93.2019.08.05.11.19.16; Mon, 05 Aug 2019 11:19:32 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=redhat.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729566AbfHESSR (ORCPT + 99 others); Mon, 5 Aug 2019 14:18:17 -0400 Received: from mail-lj1-f193.google.com ([209.85.208.193]:35866 "EHLO mail-lj1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726559AbfHESSR (ORCPT ); Mon, 5 Aug 2019 14:18:17 -0400 Received: by mail-lj1-f193.google.com with SMTP id i21so830867ljj.3 for ; Mon, 05 Aug 2019 11:18:16 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=5iD60MN3ezKI1+xt5FlPDcJaTEoPJLW96DLDKH2MmR0=; b=Rs36w3Gtqp/ZeJoZpwoyU04iG+8sE3YYjLggT2XWV1jt/7UrDN0xbGlRvXs+1r5Bm1 3MFCl7pzuEo3eLdsGySP5EkAafparMYUD3BqvfNAUVgPI3tlBSgyuVrTN4ogmPuLuF6i nMOn1fl3+6cpdLBuvtkgRasckvmCXNtCRNuZW1Owvm07qKs2K/8r+IDysJa3vw3AdJ7T ZP1Zhcc5ihPZ6ngUOIEN+Sp5B7jGBuHbklZrkDGkd/FlKYpRF56k5r79jaqYaEFW7+/B 5o6wsGtQPhFvFxCJZn9h7vIVGI5rafZj3EXeXN0qiATw/nGoJ8dKUgPQuXJHPcOpymK7 gP3Q== X-Gm-Message-State: APjAAAX01wFeSaWRrKKSFKoAR3eCntb8VXBGq6hOIl8a8ZzjPTMF/h+2 LgwgrjWJqlh/3v6lsBrQXYBYjwu6J5GK1zT51NwveQ== X-Received: by 2002:a2e:9643:: with SMTP id z3mr80490301ljh.43.1565029095550; Mon, 05 Aug 2019 11:18:15 -0700 (PDT) MIME-Version: 1.0 References: <20190731183116.4791-1-mcroce@redhat.com> <20190805.105800.1380680189003158228.davem@davemloft.net> In-Reply-To: <20190805.105800.1380680189003158228.davem@davemloft.net> From: Matteo Croce Date: Mon, 5 Aug 2019 20:17:39 +0200 Message-ID: Subject: Re: [PATCH net] mvpp2: fix panic on module removal To: David Miller Cc: netdev , Miquel Raynal , LKML , Lorenzo Bianconi , Antoine Tenart , Maxime Chevallier Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Aug 5, 2019 at 7:58 PM David Miller wrote: > > From: Matteo Croce > Date: Wed, 31 Jul 2019 20:31:16 +0200 > > > mvpp2 uses a delayed workqueue to gather traffic statistics. > > On module removal the workqueue can be destroyed before calling > > cancel_delayed_work_sync() on its works. > > Fix it by moving the destroy_workqueue() call after mvpp2_port_remove(). > > Please post a new version with the flush_workqueue() removed. Hi, I thought that it was already merged: https://lore.kernel.org/netdev/20190801121330.30823-1-mcroce@redhat.com/ Let me know if it's ok already. Regards, -- Matteo Croce per aspera ad upstream