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

From: Stephen Rothwell <[email-masked]>
Date: Tue, 28 Mar 2017 15:40:22 +1100

Hi Shaohua,

After merging the md tree, today's linux-next build (powerpc
pseries_le_defconfig) produced this warning:

drivers/md/raid1.c: In function 'raid1d':
drivers/md/raid1.c:2172:9: warning: 'page_len$' may be used uninitialized in this function [-Wmaybe-uninitialized]
     if (memcmp(page_address(ppages[j]),
         ^
drivers/md/raid1.c:2160:7: note: 'page_len$' was declared here
   int page_len[RESYNC_PAGES];
       ^

Introduced by commit

  60928a91b0b3 ("md: raid1: use bio helper in process_checks()")

-- 
Cheers,
Stephen Rothwell