linux-kernel - Re: include/net/ipv6.h:408:38: warning: ‘*((void *)&addr+8)’ may be used uninitialized in this function

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Message-ID: <CA+ydwtoF7SEf20h+qXxFi4hAH4J0Z+6O_Zx5XSQ4xthn7daJpw@mail.gmail.com>
Date:	Thu, 13 Jun 2013 20:20:28 +0300
From:	Tommi Rantala <tt.rantala@...il.com>
To:	Eric Dumazet <eric.dumazet@...il.com>
Cc:	"David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: include/net/ipv6.h:408:38: warning: ‘*((void *)&addr+8)’ may be used uninitialized in this function

2013/6/13 Eric Dumazet <eric.dumazet@...il.com>:
> On Thu, 2013-06-13 at 18:16 +0300, Tommi Rantala wrote:
>> Hello, I'm seeing the following compiler warnings. Do these make any
>> sense? I'm doing a x86-64 build.
>
>> $ gcc --version
>> gcc (Ubuntu/Linaro 4.7.3-1ubuntu1) 4.7.3
>> Copyright (C) 2012 Free Software Foundation, Inc.
>> This is free software; see the source for copying conditions.  There is NO
>> warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
>>
>> config:
>> http://fpaste.org/18443/13711363/
>
> Well, what tree are you using ?

mainline, the warnings are from v3.10-rc5-0-g317ddd2.

They are not new, also visible e.g. in v3.9-0-gc1be5a5.
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