linux-kernel - Re: [PATCH -tip] in6.h: extern's make no sense in userspace

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Message-Id: <20090112.232205.196691083.davem@davemloft.net>
Date:	Mon, 12 Jan 2009 23:22:05 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	sam@...nborg.org
Cc:	jaswinder@...radead.org, mingo@...e.hu, harvey.harrison@...il.com,
	gorcunov@...il.com, roque@...fc.ul.pt,
	linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH -tip] in6.h: extern's make no sense in userspace

From: Sam Ravnborg <sam@...nborg.org>
Date: Tue, 13 Jan 2009 08:15:13 +0100

> On Tue, Jan 13, 2009 at 12:27:39PM +0530, Jaswinder Singh Rajput wrote:
> > +#ifdef __KERNEL__
> >  extern const struct in6_addr in6addr_any;
> >  #define IN6ADDR_ANY_INIT { { { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 } } }
> >  extern const struct in6_addr in6addr_loopback;
> >  #define IN6ADDR_LOOPBACK_INIT { { { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1 } } }
> > -#ifdef __KERNEL__
> 
> It looks wrong what IN6ADDR_ANY_INIT should be a kernel only symbol.
> At least google had some hits on that symbol.
> 
> netdev people should know....

It is defined by libc's /usr/include/netinet/in.h
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