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| author | Brian Haley <brian.haley@hp.com> | 2007-08-25 10:16:08 +0400 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-10-11 03:48:32 +0400 |
| commit | e773e4faa19c54c2f32ddd16add2919588488bd9 (patch) | |
| tree | 316395a9c687155362913ec1c588c0217233f67e /include | |
| parent | 6f4fc423b96c8fdf6f5c8b8ad79b75b7fb5a5c59 (diff) | |
| download | linux-e773e4faa19c54c2f32ddd16add2919588488bd9.tar.xz | |
[IPV6]: Add v4mapped address inline
Add v4mapped address inline to avoid calls to ipv6_addr_type().
Signed-off-by: Brian Haley <brian.haley@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/ipv6.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/net/ipv6.h b/include/net/ipv6.h index 9059e0ed7fe3..9573c8d19153 100644 --- a/include/net/ipv6.h +++ b/include/net/ipv6.h @@ -377,6 +377,12 @@ static inline int ipv6_addr_any(const struct in6_addr *a) a->s6_addr32[2] | a->s6_addr32[3] ) == 0); } +static inline int ipv6_addr_v4mapped(const struct in6_addr *a) +{ + return ((a->s6_addr32[0] | a->s6_addr32[1]) == 0 && + a->s6_addr32[2] == htonl(0x0000ffff)); +} + /* * find the first different bit between two addresses * length of address must be a multiple of 32bits |