Received: by 2002:a05:6a10:2785:0:0:0:0 with SMTP id ia5csp2152119pxb;
        Mon, 11 Jan 2021 02:14:40 -0800 (PST)
X-Google-Smtp-Source: ABdhPJxyV7lzKMbka15eOqNDtTMEA8KMFI9P3GJ475usy4VivcgrgisYjn2L1xyG4oHxofHc11qj
X-Received: by 2002:a17:906:a3c7:: with SMTP id ca7mr10749429ejb.523.1610360079856;
        Mon, 11 Jan 2021 02:14:39 -0800 (PST)
ARC-Seal: i=1; a=rsa-sha256; t=1610360079; cv=none;
        d=google.com; s=arc-20160816;
        b=k5PRT9Gee9ZBK3xl8eZjo4Lj/FrNKgY+dOiFH9dsDJucpoO0EuT78biuaI1LaxsDcv
         83xvbPiTZMjMfDuNe1X1459r8IV8zA/HhJVEdaq5PTSPhTIV59Lv1dB4Qb6kkK+ZCvOb
         MFLMJkkZcsttoFrpKprHPAIhCR0TKP4+PMYJL54kzGdez9/lCqe8eoCHMyfhPfo7pPws
         3OJt6rNwP34ZlLUpadRjsJjeW0xXHdVw2ux3noy6KuM/KSEVhDbI4+1hGbNR87Cf0QhN
         JNoyG4GDPpHfW4zIC92JTLGVHULKINWwo0XUajGB7cSFtpxHA+/TliRxgpDRbAAZNgKs
         6bLQ==
ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816;
        h=list-id:precedence:in-reply-to:content-disposition:mime-version
         :references:message-id:subject:cc:to:from:dkim-signature
         :dkim-signature:date;
        bh=OStc6tYhGtUgpIIfKJXOMyhkrYNa5qWoDdt0j5xoqgc=;
        b=nV1Uar1Dikh+eCPB88Xi5aJFnHXur9jtSwRFUVLDrAvi38tf+VSVEeepXSSdq7WtAY
         avbtu93G364V1Nz2iclxbDEE2JT56L7aAWKIX2LY0qHCByS2yxndGRLYdHi7grXSYd9S
         bu7Bk+8U1ZjSEbuq0wT8w1bLUwFb7yHAaB2HIPamMeIdsYaNHhjIiTuM2FLWnWnBvOi5
         Vl/pUxZKb1YCUKw2tQRRvenkyYkjih8r5u41CQfQY2utS9IK53cJ/PtmietG4ILGp5Bk
         roY8ldmAQbBAFZBBRvpcUN1jPzqrVOOvgxCfuiVgNVJkj3nT1cTlJ+y/I4yWk3oHAib2
         wLEA==
ARC-Authentication-Results: i=1; mx.google.com;
       dkim=pass header.i=@linutronix.de header.s=2020 header.b=DuyBy4hx;
       dkim=neutral (no key) header.i=@linutronix.de header.s=2020e;
       spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org;
       dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=linutronix.de
Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18])
        by mx.google.com with ESMTP id q23si6397982eja.104.2021.01.11.02.14.16;
        Mon, 11 Jan 2021 02:14:39 -0800 (PST)
Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
Authentication-Results: mx.google.com;
       dkim=pass header.i=@linutronix.de header.s=2020 header.b=DuyBy4hx;
       dkim=neutral (no key) header.i=@linutronix.de header.s=2020e;
       spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org;
       dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=linutronix.de
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S1728764AbhAKKJu (ORCPT <rfc822;linux.oss.ml@gmail.com>
        + 99 others); Mon, 11 Jan 2021 05:09:50 -0500
Received: from Galois.linutronix.de ([193.142.43.55]:37648 "EHLO
        galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
        with ESMTP id S1728532AbhAKKJu (ORCPT
        <rfc822;linux-kernel@vger.kernel.org>);
        Mon, 11 Jan 2021 05:09:50 -0500
Date:   Mon, 11 Jan 2021 11:09:07 +0100
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de;
        s=2020; t=1610359748;
        h=from:from:reply-to:subject:subject:date:date:message-id:message-id:
         to:to:cc:cc:mime-version:mime-version:content-type:content-type:
         in-reply-to:in-reply-to:references:references;
        bh=OStc6tYhGtUgpIIfKJXOMyhkrYNa5qWoDdt0j5xoqgc=;
        b=DuyBy4hxTBJdMtP7AFTvG0WW5VrU3Hr1MEIUtKn24cvaFonRhrC3tRjj6D0Km18kqD6pCo
        FDZcXQ43WHf0GMyuPB3gS9qI5u/Oni/PeG5lBnum+WW3uLgjQb1JWi4cqy13HzocRD/+72
        IzOK+IZBIhuxLCNac4PH/8ETGtLFCunxeBeq4qkPliUc8DZ2V4ykvXR6zV0PHnAzqfcINS
        mL255dTxi33nvncmRsFYMtH92U36Kfsq8ca9IKU7D9IgVDnPpK8XsEDd7nvQzlTWKxOTpl
        x5hldRATtKAvwS74z4tIgbcAXsIAMPjzn1RzYdm7tRwr3FfRcymBtt2OgezAaQ==
DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de;
        s=2020e; t=1610359748;
        h=from:from:reply-to:subject:subject:date:date:message-id:message-id:
         to:to:cc:cc:mime-version:mime-version:content-type:content-type:
         in-reply-to:in-reply-to:references:references;
        bh=OStc6tYhGtUgpIIfKJXOMyhkrYNa5qWoDdt0j5xoqgc=;
        b=d99FN6Gez6PbK0zyvrWL39yaAz+q6o52ruTW8Di/LTRqkRxSbjEjjIXMD4F62RlQX/iB8a
        aVYrrZ25VfzCPACA==
From:   "Sebastian A. Siewior" <bigeasy@linutronix.de>
To:     "Ahmed S. Darwish" <a.darwish@linutronix.de>
Cc:     Michael Grzeschik <m.grzeschik@pengutronix.de>,
        "David S. Miller" <davem@davemloft.net>,
        Jakub Kicinski <kuba@kernel.org>, netdev@vger.kernel.org,
        LKML <linux-kernel@vger.kernel.org>,
        Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [RFC PATCH 0/1] net: arcnet: Fix RESET sequence
Message-ID: <20210111100907.tacvfj6ghtwkpyy6@linutronix.de>
References: <20201222090338.186503-1-a.darwish@linutronix.de>
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Disposition: inline
In-Reply-To: <20201222090338.186503-1-a.darwish@linutronix.de>
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

On 2020-12-22 10:03:37 [+0100], Ahmed S. Darwish wrote:
>   2) arcnet_close() contains a del_timer_sync(). If the irq handler
>      interrupts the to-be-deleted timer then call del_timer_sync(), it
>      will just loop forever.

del_timer_sync() will trigger a warning if invoked from interrupt
handler.

Sebastian