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

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Message-ID: <20220506073829.5545ff1a@canb.auug.org.au>
Date:   Fri, 6 May 2022 07:38:29 +1000
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Andrew Morton <akpm@...ux-foundation.org>
Cc:     "Matthew Wilcox (Oracle)" <willy@...radead.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>
Subject: Re: linux-next: build warning after merge of the mm tree

Hi all,

On Fri, 6 May 2022 07:35:37 +1000 Stephen Rothwell <sfr@...b.auug.org.au> wrote:
>
> After merging the mm tree, today's linux-next build (i386 allmodconfig
> clang14) produced this warning:
> 
> mm/shmem.c:1704:7: error: variable 'folio' is used uninitialized whenever 'if' condition is true [-Werror,-Wsometimes-uninitialized]
> 
> Introduced by commit
> 
>   2b58b3f33ba2 ("mm/shmem: convert shmem_swapin_page() to shmem_swapin_folio()")
> 
> 'folio' is used in the error path.

This is actually a build failure.

-- 
Cheers,
Stephen Rothwell

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