linux-kernel - Re: stable-rc build: 6 warnings 0 failures (stable-rc/v4.9.50-79-g8d96ea4)

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Date:   Mon, 18 Sep 2017 16:12:35 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     "Olof's autobuilder" <build@...om.net>
Cc:     Olof Johansson <olof@...om.net>,
        Kernel Build Reports Mailman List 
        <kernel-build-reports@...ts.linaro.org>,
        "Darrick J. Wong" <darrick.wong@...cle.com>,
        Christoph Hellwig <hch@....de>,
        Brian Foster <bfoster@...hat.com>,
        gregkh <gregkh@...uxfoundation.org>,
        stable <stable@...r.kernel.org>,
        Steffen Klassert <steffen.klassert@...unet.com>,
        Wei Wang <weiwan@...gle.com>,
        "David S. Miller" <davem@...emloft.net>,
        Networking <netdev@...r.kernel.org>,
        linux-xfs <linux-xfs@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: stable-rc build: 6 warnings 0 failures (stable-rc/v4.9.50-79-g8d96ea4)

On Mon, Sep 18, 2017 at 12:57 PM, Olof's autobuilder <build@...om.net> wrote:
> Here are the build results from automated periodic testing.
>
> Warnings:
>
>       2 fs/xfs/xfs_buf_item.c:573:7: warning: unused variable 'ordered' [-Wunused-variable]

This is evidently from the backport of

351652421e41 ("xfs: remove unnecessary dirty bli format check for ordered bufs")

It was fixed upstream in

7bf7a193a90c ("xfs: fix compiler warnings")

which contains a few other fixes as well. I have verified that all five
trivial changes in the fixup patch should be backported into v4.9-stable
as well.

>       4 net/ipv6/route.c:1270:6: warning: 'rt_cookie' may be used uninitialized in this function [-Wmaybe-uninitialized]

Introduced in the backport of
c5cff8561d2d ("ipv6: add rcu grace period before freeing fib6_node")
Fixed in
3614364527da ("ipv6: Fix may be used uninitialized warning in rt6_check")

Please backport both fixups.

      Arnd