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

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Message-ID: <CAOFY-A1C_VLqnjr3j6YUTvq_UM+6D8SvoYHJTJ7OYPdgoHTsWQ@mail.gmail.com>
Date:   Thu, 27 Feb 2020 21:23:29 -0800
From:   Arjun Roy <arjunroy@...gle.com>
To:     Stephen Rothwell <sfr@...b.auug.org.au>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        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 akpm tree

On Thu, Feb 27, 2020 at 8:35 PM Stephen Rothwell <sfr@...b.auug.org.au> wrote:
>
> Hi all,
>
> After merging the akpm tree, today's linux-next build (sparc defconfig)
> produced this warning:
>
> mm/memory.c:1463:12: warning: 'insert_page_in_batch_locked' defined but not used [-Wunused-function]
>  static int insert_page_in_batch_locked(struct mm_struct *mm, pmd_t *pmd,
>             ^~~~~~~~~~~~~~~~~~~~~~~~~~~
>
Well, that's certainly a step in the right direction if it compiles :)

I guess having this function be within the ifdef is the way to make
this warning go away.

I'll, er, make a v3 patch.

-Arjun

> Introduced by commit
>
>   4a879e02dd49 ("mm/memory.c: add vm_insert_pages()")
>
> --
> Cheers,
> Stephen Rothwell