linux-kernel - Re: dm-bufio: avoid false-positive Wmaybe-uninitialized warning

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Message-ID: <20180307012941.GA27250@redhat.com>
Date:   Tue, 6 Mar 2018 20:29:42 -0500
From:   Mike Snitzer <snitzer@...hat.com>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     Alasdair Kergon <agk@...hat.com>, dm-devel@...hat.com,
        Mikulas Patocka <mpatocka@...hat.com>,
        Ingo Molnar <mingo@...nel.org>,
        Aliaksei Karaliou <akaraliou.dev@...il.com>,
        Jens Axboe <axboe@...nel.dk>, Jan Kara <jack@...e.cz>,
        Dan Carpenter <dan.carpenter@...cle.com>,
        Mark Rutland <mark.rutland@....com>,
        Eric Biggers <ebiggers@...gle.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        stable <stable@...r.kernel.org>
Subject: Re: dm-bufio: avoid false-positive Wmaybe-uninitialized warning

On Tue, Mar 06 2018 at  4:33pm -0500,
Arnd Bergmann <arnd@...db.de> wrote:

> On Thu, Feb 22, 2018 at 5:04 PM, Mike Snitzer <snitzer@...hat.com> wrote:
> > On Thu, Feb 22 2018 at 10:56am -0500,
> > Arnd Bergmann <arnd@...db.de> wrote:
> 
> >
> > Mikulas already sent a fix for this:
> > https://patchwork.kernel.org/patch/10211631/
> >
> > But I like yours a bit better, though I'll likely move the declaration
> > of 'noio_flag' temporary inside the conditional.
> >
> > Anyway, I'll get this fixed up shortly, thanks.
> 
> I see the fix made it into linux-next on the same day, but the build bots still
> report the warning for mainline kernels and now also for stable kernels
> that got a backport of the patch that introduced it on arm64.
> 
> I assume you had not planned to send it for mainline, any chance you
> could change that and send it as a bugfix with a 'Cc:
> stable@...r.kernel.org' tag to restore a clean build?

I did/do plan to send to Linus this week.

But I've updated the commit header to include the CC: stable like you
asked.

Thanks,
Mike