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