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

[Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>]

Hi all,

After merging the tip tree, today's linux-next build (x86_64 allmodconfig)
produced this warning:

fs/ubifs/dir.c: In function 'ubifs_readdir':
fs/ubifs/dir.c:629:13: warning: 'fstr_real_len' may be used uninitialized in this function [-Wmaybe-uninitialized]
    fstr.len = fstr_real_len;
             ^

Introduced by commit

  f4f61d2cc6d8 ("ubifs: Implement encrypted filenames")

This is a false positive because assignment and use are both protected by
"if (encrypted)".

I have no idea why this did not turn up earlier in my builds.

-- 
Cheers,
Stephen Rothwell
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