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

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Message-ID: <20170519144432.0191fdf8@canb.auug.org.au>
Date:   Fri, 19 May 2017 14:44:32 +1000
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Andrew Morton <akpm@...ux-foundation.org>
Cc:     Linux-Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Michal Hocko <mhocko@...e.com>
Subject: linux-next: build warning after merge of the akpm-current tree

Hi Andrew,

After merging the akpm-current tree, today's linux-next build (arm
multi_v7_defconfig) produced this warning:

mm/vmstat.c: In function 'pagetypeinfo_showblockcount_print':
mm/vmstat.c:1230:8: warning: 'page' may be used uninitialized in this function [-Wmaybe-uninitialized]
   if (!memmap_valid_within(pfn, page, zone))
        ^

Introduced by commit

  36c7473b3c85 ("mm, vmstat: skip reporting offline pages in pagetypeinfo")

That really doesn't look good.

-- 
Cheers,
Stephen Rothwell