From mboxrd@z Thu Jan  1 00:00:00 1970
From: aftnix@gmail.com (Arif Hossain)
Date: Sat, 21 Jul 2012 19:45:34 +0600
Subject: ipv6 address comparison
In-Reply-To: <alpine.DEB.2.02.1207211535300.32697@aurora.sdinet.de>
References: <1342872161.3431.13.camel@localhost>
	<alpine.DEB.2.02.1207211535300.32697@aurora.sdinet.de>
Message-ID: <1342878334.3431.15.camel@localhost>
To: kernelnewbies@lists.kernelnewbies.org
List-Id: kernelnewbies.lists.kernelnewbies.org

On Sat, 2012-07-21 at 15:36 +0200, Sven-Haegar Koch wrote:
> On Sat, 21 Jul 2012, Arif Hossain wrote:
> 
> > My module uses ipv6_addr_cmp() from <linux/ipv6.h>. 
> > 
> > <linux/ipv6.h>
> > static inline int ipv6_addr_cmp(const struct in6_addr *a1, const struct
> > in6_addr *a2)
> > {
> > 	return memcmp(a1, a2, sizeof(struct in6_addr));
> > }
> > 
> > I've included <linux/ipv6.h>. But when i try to build the module i get
> > following error:
> > 
> > net/netfilter/xt_ipaddr.c:81: error: implicit declaration of function
> > ?ipv6_addr_cmp?
> > 
> > Although before the call to ipv6_addr_cmp, i have a casting to struct
> > ipv6hdr *iph. So the definitions from ipv6.h should be available to my
> > module.
> 
> In my 3.2.0 source tree here the definition is in include/net/ipv6.h, 
> not in include/linux/ipv6.h
> 
> c'ya
> sven-haegar
> 
> -- 
> Three may keep a secret, if two of them are dead.
> - Ben F.

Thanks for the reply. Now its working.
cheers