linux-kernel - Re: [PATCH] btrfs: scrub: initialize variable explicitly

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Message-ID: <20230608124645.GJ28933@twin.jikos.cz>
Date:   Thu, 8 Jun 2023 14:46:45 +0200
From:   David Sterba <dsterba@...e.cz>
To:     Qu Wenruo <quwenruo.btrfs@....com>
Cc:     Ou Shixiong <oushixiong@...inos.cn>, Chris Mason <clm@...com>,
        Josef Bacik <josef@...icpanda.com>,
        David Sterba <dsterba@...e.com>, linux-btrfs@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] btrfs: scrub: initialize variable explicitly

On Thu, Jun 08, 2023 at 01:18:20PM +0800, Qu Wenruo wrote:
> 
> 
> On 2023/6/8 10:49, Ou Shixiong wrote:
> >
> > Fix error of
> > error: ‘ret’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
> >
> > Signed-off-by: Ou Shixiong <oushixiong@...inos.cn>
> 
> 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 is out of date or lacks certain backports.

Yeah, for obvious false altert warnings at least we need to know the
compiler, version and architecture.