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Date:   Wed, 27 Jan 2021 08:12:25 +0100
From:   Christoph Hellwig <hch@lst.de>
To:     Stephen Rothwell <sfr@canb.auug.org.au>
Cc:     Christian Brauner <christian@brauner.io>,
        Christoph Hellwig <hch@lst.de>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Linux Next Mailing List <linux-next@vger.kernel.org>
Subject: Re: linux-next: build warning after merge of the pidfd tree
Message-ID: <20210127071225.GB21133@lst.de>
References: <20210127094101.2100177b@canb.auug.org.au>
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On Wed, Jan 27, 2021 at 09:41:01AM +1100, Stephen Rothwell wrote:
> Hi all,
> 
> After merging the pidfd tree, today's linux-next build (powerpc
> ppc64_defconfig) produced this warning:
> 
> fs/xfs/xfs_ioctl32.c: In function 'xfs_file_compat_ioctl':
> fs/xfs/xfs_ioctl32.c:441:20: warning: unused variable 'mp' [-Wunused-variable]
>   441 |  struct xfs_mount *mp = ip->i_mount;
>       |                    ^~

So this is only used in an x86-specific section of the function.
Let me think what we can do about this.