diff options
Diffstat (limited to 'net/ipv6/protocol.c')
| -rw-r--r-- | net/ipv6/protocol.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/net/ipv6/protocol.c b/net/ipv6/protocol.c index 053082dfc93e..f7c53a7d5cb0 100644 --- a/net/ipv6/protocol.c +++ b/net/ipv6/protocol.c @@ -26,6 +26,7 @@ #include <net/protocol.h> const struct inet6_protocol __rcu *inet6_protos[MAX_INET_PROTOS] __read_mostly; +const struct net_offload __rcu *inet6_offloads[MAX_INET_PROTOS] __read_mostly; int inet6_add_protocol(const struct inet6_protocol *prot, unsigned char protocol) { @@ -34,6 +35,13 @@ int inet6_add_protocol(const struct inet6_protocol *prot, unsigned char protocol } EXPORT_SYMBOL(inet6_add_protocol); +int inet6_add_offload(const struct net_offload *prot, unsigned char protocol) +{ + return !cmpxchg((const struct net_offload **)&inet6_offloads[protocol], + NULL, prot) ? 0 : -1; +} +EXPORT_SYMBOL(inet6_add_offload); + /* * Remove a protocol from the hash tables. */ @@ -50,3 +58,16 @@ int inet6_del_protocol(const struct inet6_protocol *prot, unsigned char protocol return ret; } EXPORT_SYMBOL(inet6_del_protocol); + +int inet6_del_offload(const struct net_offload *prot, unsigned char protocol) +{ + int ret; + + ret = (cmpxchg((const struct net_offload **)&inet6_offloads[protocol], + prot, NULL) == prot) ? 0 : -1; + + synchronize_net(); + + return ret; +} +EXPORT_SYMBOL(inet6_del_offload); |