linux-kernel - Re: linux-next: build warning after merge of the userns tree

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Message-ID: <87lfyoxjjs.fsf@xmission.com>
Date:   Thu, 30 May 2019 06:34:31 -0500
From:   ebiederm@...ssion.com (Eric W. Biederman)
To:     Stephen Rothwell <sfr@...b.auug.org.au>
Cc:     Linux Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: linux-next: build warning after merge of the userns tree

Stephen Rothwell <sfr@...b.auug.org.au> writes:

> Hi Eric,
>
> After merging the userns tree, today's linux-next build (i386 defconfig)
> produced this warning:
>
> arch/x86/mm/fault.c: In function 'do_sigbus':
> arch/x86/mm/fault.c:1017:22: warning: unused variable 'tsk' [-Wunused-variable]
>   struct task_struct *tsk = current;
>                       ^~~
>
> Introduced by commit
>
>   351b6825b3a9 ("signal: Explicitly call force_sig_fault on current")
>
> The remaining used of "tsk" are protected by CONFIG_MEMORY_FAILURE.

Yes.  Thank you.  I will add a commit to move tsk inside
CONFIG_MEMORY_FAILURE.

Eric