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

From	Ingo Molnar <mingo@kernel.org>
Newsgroups	linux.kernel
Subject	Re: linux-next: build warning after merge of the tip tree
Date	2016-12-14 09:40 +0100
Message-ID	<sOcX7-467-17@gated-at.bofh.it> (permalink)
References	<sO7uq-BJ-13@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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* Stephen Rothwell <sfr@canb.auug.org.au> wrote:

> 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.

FYI, f4f61d2cc6d8 is not in the -tip tree, so it cannot possibly have introduced 
this warning.

Thanks,

	Ingo

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linux-next: build warning after merge of the tip tree Stephen Rothwell <sfr@canb.auug.org.au> - 2016-12-14 03:30 +0100
  Re: linux-next: build warning after merge of the tip tree Stephen Rothwell <sfr@canb.auug.org.au> - 2016-12-14 09:20 +0100
  Re: linux-next: build warning after merge of the tip tree Richard Weinberger <richard@nod.at> - 2016-12-14 09:20 +0100
    Re: linux-next: build warning after merge of the tip tree Stephen Rothwell <sfr@canb.auug.org.au> - 2016-12-14 09:30 +0100
  Re: linux-next: build warning after merge of the tip tree Ingo Molnar <mingo@kernel.org> - 2016-12-14 09:40 +0100

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