linux-next: build warning after merge of the f2fs tree

[Stephen Rothwell]

Hi Jaegeuk,

After merging the f2fs tree, today's linux-next build
(x86_64_allmodconfig) produced this warning:

fs/f2fs/node.c: In function 'fsync_node_pages':
fs/f2fs/node.c:1520:3: warning: 'last_idx' may be used uninitialized in this function [-Wmaybe-uninitialized]
   f2fs_submit_merged_bio_cond(sbi, NULL, ino, last_idx,
   ^

Introduced by commit

  9563642a6ec2 ("f2fs: check last page index in cached bio to decide submission")

-- 
Cheers,
Stephen Rothwell