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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 006AAC7EE23 for ; Thu, 8 Jun 2023 05:18:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233991AbjFHFSq (ORCPT ); Thu, 8 Jun 2023 01:18:46 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35442 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234051AbjFHFSl (ORCPT ); Thu, 8 Jun 2023 01:18:41 -0400 Received: from mout.gmx.net (mout.gmx.net [212.227.15.15]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EC24B2707; Wed, 7 Jun 2023 22:18:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.com; s=s31663417; t=1686201508; x=1686806308; i=quwenruo.btrfs@gmx.com; bh=1jGLFjVFutlL15INtZAvqv+dncEd6i/m4rHvXBBMmGg=; h=X-UI-Sender-Class:Date:Subject:To:Cc:References:From:In-Reply-To; b=azgJh8NQWNbUaBSZLWqGY+HoAK5Rm4HbdJTLlg9jWRF+cBQzEeacFhyLve4dmAinhfppBBR H0ajL4enkFG6hvF1V2HqCvFzOY9/0vrmMXftOGKDXHMdPy/QCDqL5hQ43PJSb/73OY+DiZ8jM i1cnjaUkPdxBrKw9lx6ixMLVRUfcMEvaPZsmp1QuocyIIEtqyAth5frq261ckmpl5ClQrKR1u you+c4ehw+2YakiLXArWDKsDZkjOGdtLboWp53oj6xXGwYoIW13/5Ay7rmbmna9ZZR/sHlh/R 9swM8ytar6JC9ot4eyjAhHI0NDoQzTOkoCDhDoW+O1e7dKUfGQxA== X-UI-Sender-Class: 724b4f7f-cbec-4199-ad4e-598c01a50d3a Received: from [0.0.0.0] ([149.28.201.231]) by mail.gmx.net (mrgmx005 [212.227.17.184]) with ESMTPSA (Nemesis) id 1M7sHo-1qC67d11nu-004yq6; Thu, 08 Jun 2023 07:18:28 +0200 Message-ID: <230384e8-55dc-579d-64e8-0c0263b72673@gmx.com> Date: Thu, 8 Jun 2023 13:18:20 +0800 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.11.2 Subject: Re: [PATCH] btrfs: scrub: initialize variable explicitly Content-Language: en-US To: Ou Shixiong , Chris Mason Cc: Josef Bacik , David Sterba , linux-btrfs@vger.kernel.org, linux-kernel@vger.kernel.org References: <20230608024901.221232-1-oushixiong@kylinos.cn> From: Qu Wenruo In-Reply-To: <20230608024901.221232-1-oushixiong@kylinos.cn> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:6EfPHzuskSxAH6zrU41QsDDbzOkxv+G1nISa7FOgUVKJxduEZiv bGFVjlVn3sPr6hweyQ5+arNY35eWjIBHYe6LJmsfV2Mk+JMUVuSfy2UJzzUa/FVK+HqD0hQ rajl+QGAI+ti0ZHomWTAo1xCXUKiC4wGGDeEGKe2r3QUBQDrH/tV78dHWJvlEJ7Y2Cud07z aRbG3x3pxwVl/CEj8dcsQ== UI-OutboundReport: notjunk:1;M01:P0:nwIOnVqnoZY=;TlhybxGQrgbpx67pnhiJaMmQFul 9MaSWzK9TaqGHofGVGuDkz8hfMGiRbIJUTxoDlcQWO2edyIIpCKrJp/2TZgf8+IiX7cXnPGyL dNigMNjWGrwcsXtLqjzs+0i8H+YHZAWVst6ZeL3Eu1sdWllIf8Rcgf5k7OAQ+YbXzCm6SsMoK bKQVRZxdgzOU8yGiZJyv5yGJ+yM1wE7K4oN6HYfs5nX8lDuRxdFFYvtLbno/bTii3sZkNgwsC fTp6U7xuu+Xlb2eU20hPsfLNZ0A+GQ7JlkM7tL4ZHvfl2oQFEqS8+aFfhDsknsLqemt4yAheh iAfepHFXikLETcFEMfMylQPJ3307EtC0Lht0zqP36rb3pRlGPQOk78OLo59gBmIOwE8CjCP3c iV4Gs9/aTf0QdieiRmKVX1DLDuVTQ9wAdoq8HWMsKk0opnE+WPh0MW3zNlrZmeB/lzkNCARpM 1keKdUYIss0pSqsIWkegItIH38Er58k99hfZ0Cpu3AaSw3liULgEoa2xsmxeI6m3TdM76QcUs fGqazMl3RRxnTGl2KykLDPBEqi4bL6T94MKXMHbFCWvUEuNLgoudT4zX8MJWi/Hla7uW+UBtv O+LjcQ78YtxDyAUveprOl0kQUEUP9iA56USfnDK/bmFT9j0JcfY50cm1A1SleV1HjEkFPq0Vz dIjc3jCsFKBoL5JEbGg/urDQNTGj0R3dHZ43HlbGjRzgyPYvmUXFGOnDLTPmw1SNLG2nt1X8s vMf/trPTvr+/MPE8VatwUcspTsvYKJInhD8CrqtOybIdGhfphkjexEVM5K/d02u8tG8/eCDES s+iQPTOK8Mp/hQ98YTUr45ZsWlj3Nu1vQvpACgWl6SUI2JvZIUGRF60rxrHh8aRYxUkqvy3F8 BIY0C4lytbStAqVcdWGsbmOGUZ+mRW4kgRH8h5QG5tMSb0a5CWzeJU4RBNdwis4+6gtVHQKO9 Zh937kFpSCf0xbPVleI2gB+JXeQ= Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org On 2023/6/8 10:49, Ou Shixiong wrote: > > Fix error of > error: =E2=80=98ret=E2=80=99 may be used uninitialized in this function = [-Werror=3Dmaybe-uninitialized] > > Signed-off-by: Ou Shixiong Not again. Please explain how @ret can be uninitialized, and your toolchain version. To me, this looks like a false alert, and it's possible your toolchain is out of date or lacks certain backports. Thanks, Qu > --- > fs/btrfs/scrub.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c > index 28caad17ccc7..0d5c87c52c33 100644 > --- a/fs/btrfs/scrub.c > +++ b/fs/btrfs/scrub.c > @@ -1962,7 +1962,7 @@ static int scrub_simple_mirror(struct scrub_ctx *s= ctx, > /* An artificial limit, inherit from old scrub behavior */ > struct btrfs_path path =3D { 0 }; > u64 cur_logical =3D logical_start; > - int ret; > + int ret =3D 0; > > /* The range must be inside the bg */ > ASSERT(logical_start >=3D bg->start && logical_end <=3D bg->start + b= g->length); > > > Content-type: Text/plain > > No virus found > Checked by Hillstone Network AntiVirus