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

From: Matthew Wilcox <[email-masked]>
Date: Thu, 5 May 2022 23:18:44 +0100

On Fri, May 06, 2022 at 07:35:37AM +1000, Stephen Rothwell wrote:
> Hi all,
> 
> 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.

I sent a repacement series here:

https://lore.kernel.org/linux-mm/[email-masked]/T/#t

I presume Andrew has not had a chance to integrate it yet.  LSF/MM was
exhausting!