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=-6.8 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS 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 1A921C433E0 for ; Wed, 15 Jul 2020 10:37:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E175620656 for ; Wed, 15 Jul 2020 10:37:46 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=mg.codeaurora.org header.i=@mg.codeaurora.org header.b="sCAh6LDW" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731198AbgGOKhq (ORCPT ); Wed, 15 Jul 2020 06:37:46 -0400 Received: from mail29.static.mailgun.info ([104.130.122.29]:12646 "EHLO mail29.static.mailgun.info" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728998AbgGOKhq (ORCPT ); Wed, 15 Jul 2020 06:37:46 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1594809465; h=Date: Message-Id: Cc: To: References: In-Reply-To: From: Subject: Content-Transfer-Encoding: MIME-Version: Content-Type: Sender; bh=TVurXgj4NUPmZ9Mfbj4tnXuhCejAqUKi6EtAP5OfZHY=; b=sCAh6LDWVWCX50G8+sBF3xmp3Li3FmwmeOS9fjdQ1JWL7JuionIfmi3srpnMr7M6JG8lWFRO ZpFMlGV1P0JMIGMZqjA0Qy+N0nAGlw4K0IJ7DLhyOeWbFG/c2r6xAkCuAriQxUu6SwCplUse WsNAy8IfcoSeEKyWgAW7J53bJR0= X-Mailgun-Sending-Ip: 104.130.122.29 X-Mailgun-Sid: WyI3YTAwOSIsICJsaW51eC13aXJlbGVzc0B2Z2VyLmtlcm5lbC5vcmciLCAiYmU5ZTRhIl0= Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by smtp-out-n10.prod.us-west-2.postgun.com with SMTP id 5f0edc7975eeb235f66aecf8 (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Wed, 15 Jul 2020 10:37:45 GMT Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 14FAFC433C9; Wed, 15 Jul 2020 10:37:45 +0000 (UTC) Received: from potku.adurom.net (88-114-240-156.elisa-laajakaista.fi [88.114.240.156]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: kvalo) by smtp.codeaurora.org (Postfix) with ESMTPSA id 731D0C433CA; Wed, 15 Jul 2020 10:37:43 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 731D0C433CA Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=none smtp.mailfrom=kvalo@codeaurora.org Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: Re: [PATCH 1/3] rtlwifi: rtl8192cu: Fix deadlock From: Kalle Valo In-Reply-To: <20200622132113.14508-2-code@reto-schneider.ch> References: <20200622132113.14508-2-code@reto-schneider.ch> To: Reto Schneider Cc: linux-wireless@vger.kernel.org, Larry.Finger@lwfinger.net, Reto Schneider User-Agent: pwcli/0.1.0-git (https://github.com/kvalo/pwcli/) Python/3.5.2 Message-Id: <20200715103745.14FAFC433C9@smtp.codeaurora.org> Date: Wed, 15 Jul 2020 10:37:45 +0000 (UTC) Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Reto Schneider wrote: > Prevent code from calling itself indirectly, causing the driver to hang > and consume 100% CPU. > > Without this fix, the following script can bring down a single CPU > system: > ``` > while true; do > rmmod rtl8192cu > modprobe rtl8192cu > done > ``` > > Signed-off-by: Reto Schneider > ACKed-by: Larry Finger 3 patches applied to wireless-drivers-next.git, thanks. ec89032cd148 rtlwifi: rtl8192cu: Fix deadlock 03128643eb54 rtlwifi: rtl8192cu: Prevent leaking urb a7f7c15e945a rtlwifi: rtl8192cu: Free ieee80211_hw if probing fails -- https://patchwork.kernel.org/patch/11617759/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches