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=-2.5 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_MUTT 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 38DC2C04EB9 for ; Wed, 5 Dec 2018 10:20:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id F381E206B7 for ; Wed, 5 Dec 2018 10:20:11 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="SiZfuyeg" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org F381E206B7 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727811AbeLEKUG (ORCPT ); Wed, 5 Dec 2018 05:20:06 -0500 Received: from mail-pf1-f194.google.com ([209.85.210.194]:44470 "EHLO mail-pf1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727324AbeLEKUG (ORCPT ); Wed, 5 Dec 2018 05:20:06 -0500 Received: by mail-pf1-f194.google.com with SMTP id u6so9775030pfh.11 for ; Wed, 05 Dec 2018 02:20:05 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:content-transfer-encoding:in-reply-to :user-agent; bh=LLv4rQwGOTYyUO6wQYGMzXJ1dqbaE+LSzSrL1QOnafc=; b=SiZfuyegSA8Hghw1j5oqSsoIy5RFG6tTp4b5WZYUcSD6the9auDtkQqivNw3rapSyZ kjBnAW3va3RlKZf58h5IE2lDg8ZmRNFBvTTL/USCpiRbrS6aj0oZKl3QyGmuJnU324Ad lBs7K94cMci+Coht+8a4SH5RPm4eGq/iVFfdmAp0FdCMqG36tvsK5R/RUHEryAWALORd CndFccR6GK/8nINWI92vVNMMOQ9RtIo3cf33TbIr2EMdQn8wu2gwBCzHSl5nUTNUpp62 kEU1Q22zdD3rZ6rh6N+IWj4EYxlptTeCZk3nLmbek9appM0O2W2vTwS/fMInb6PewVYg 3cMg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:content-transfer-encoding :in-reply-to:user-agent; bh=LLv4rQwGOTYyUO6wQYGMzXJ1dqbaE+LSzSrL1QOnafc=; b=fRUrq5bJPJATxGnbZqqHzVnWZcakTkf/LW0cILueDfy25zndRQjh1J3masvc/TFLWW k4ZbW/Qbt6xr9A6Pu6jisWEGzRmbPmwi36hHhZP0bnKM6piDXTsRpKerXbXjw2zgnqPh k11o2HKnYt1lypTjU7xyrysvwLZlSZ3FPwWbTJJSyNNwzZ6Xj8ThJv1buAR7QMZ2+k2y s4lnAxdgFWqAqzrgg6uyxUpbWhdWGXNmCvLXM0Xgrf9Q0XHYZPo9aPycF41Rljg5Y5Il ZFnhpgwSjZZ4FzVaFgkix9623EVzZ9url5ykPRiPq7KcFZt1vHLsDDa75yOCUGztJyb6 nDsg== X-Gm-Message-State: AA+aEWa9W4SQ8fRCfufHUH97gqc9vgE2WKgQMgADxG/UZJ/it+y3HZtY 6UqriV3j6nXYw2F/39EKsZl7TqwE X-Google-Smtp-Source: AFSGD/XVyLbR0YKejwUm/AFuKmcfM7sAICOLjYl2TrIt728EU3Y3kkdljoLvaIScLxkmkoMPV3kslQ== X-Received: by 2002:a62:5504:: with SMTP id j4-v6mr23813625pfb.166.1544005205257; Wed, 05 Dec 2018 02:20:05 -0800 (PST) Received: from localhost ([110.70.47.191]) by smtp.gmail.com with ESMTPSA id z14sm26820855pgv.47.2018.12.05.02.20.03 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Wed, 05 Dec 2018 02:20:04 -0800 (PST) Date: Wed, 5 Dec 2018 19:20:01 +0900 From: Sergey Senozhatsky To: Dave Rodgman Cc: Sergey Senozhatsky , "linux-kernel@vger.kernel.org" , "akpm@linux-foundation.org" , "herbert@gondor.apana.org.au" , "davem@davemloft.net" , Matt Sealey , "nitingupta910@gmail.com" , "markus@oberhumer.com" , "minchan@kernel.org" , "sonnyrao@google.com" , "gregkh@linuxfoundation.org" , nd , "sfr@canb.auug.org.au" Subject: Re: [PATCH v4 0/7] lib/lzo: performance improvements Message-ID: <20181205102001.GA453@jagdpanzerIV> References: <20181130142600.13782-1-dave.rodgman@arm.com> <20181205073029.GA30820@jagdpanzerIV> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: User-Agent: Mutt/1.11.1 (2018-12-01) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On (12/05/18 09:50), Dave Rodgman wrote: > > lib/lzo/lzo1x_compress.c: In function ‘lzo1x_1_do_compress’: > > lib/lzo/lzo1x_compress.c:239:14: warning: ‘m_pos’ may be used uninitialized in this function [-Wmaybe-uninitialized] > > 239 | m_off = ip - m_pos; > > > > Care to take a look? (could be false positive) > > Hi Sergey, Hi, > This warning (it's a false positive only seen with gcc) was fixed > by v4 of this patchset. OK, cool. > I've just tested the latest linux-next/master (next-20181205) > and it doesn't have this issue. Indeed. -ss