diff options
Diffstat (limited to 'net/ipv6/ip6_offload.c')
| -rw-r--r-- | net/ipv6/ip6_offload.c | 29 |
1 files changed, 27 insertions, 2 deletions
diff --git a/net/ipv6/ip6_offload.c b/net/ipv6/ip6_offload.c index ff8b484d2258..5c045691c302 100644 --- a/net/ipv6/ip6_offload.c +++ b/net/ipv6/ip6_offload.c @@ -20,6 +20,23 @@ #include "ip6_offload.h" +/* All GRO functions are always builtin, except UDP over ipv6, which lays in + * ipv6 module, as it depends on UDPv6 lookup function, so we need special care + * when ipv6 is built as a module + */ +#if IS_BUILTIN(CONFIG_IPV6) +#define INDIRECT_CALL_L4(f, f2, f1, ...) INDIRECT_CALL_2(f, f2, f1, __VA_ARGS__) +#else +#define INDIRECT_CALL_L4(f, f2, f1, ...) INDIRECT_CALL_1(f, f2, __VA_ARGS__) +#endif + +#define indirect_call_gro_receive_l4(f2, f1, cb, head, skb) \ +({ \ + unlikely(gro_recursion_inc_test(skb)) ? \ + NAPI_GRO_CB(skb)->flush |= 1, NULL : \ + INDIRECT_CALL_L4(cb, f2, f1, head, skb); \ +}) + static int ipv6_gso_pull_exthdrs(struct sk_buff *skb, int proto) { const struct net_offload *ops = NULL; @@ -164,6 +181,10 @@ static int ipv6_exthdrs_len(struct ipv6hdr *iph, return len; } +INDIRECT_CALLABLE_DECLARE(struct sk_buff *tcp6_gro_receive(struct list_head *, + struct sk_buff *)); +INDIRECT_CALLABLE_DECLARE(struct sk_buff *udp6_gro_receive(struct list_head *, + struct sk_buff *)); INDIRECT_CALLABLE_SCOPE struct sk_buff *ipv6_gro_receive(struct list_head *head, struct sk_buff *skb) { @@ -260,7 +281,8 @@ not_same_flow: skb_gro_postpull_rcsum(skb, iph, nlen); - pp = call_gro_receive(ops->callbacks.gro_receive, head, skb); + pp = indirect_call_gro_receive_l4(tcp6_gro_receive, udp6_gro_receive, + ops->callbacks.gro_receive, head, skb); out_unlock: rcu_read_unlock(); @@ -301,6 +323,8 @@ static struct sk_buff *ip4ip6_gro_receive(struct list_head *head, return inet_gro_receive(head, skb); } +INDIRECT_CALLABLE_DECLARE(int tcp6_gro_complete(struct sk_buff *, int)); +INDIRECT_CALLABLE_DECLARE(int udp6_gro_complete(struct sk_buff *, int)); INDIRECT_CALLABLE_SCOPE int ipv6_gro_complete(struct sk_buff *skb, int nhoff) { const struct net_offload *ops; @@ -320,7 +344,8 @@ INDIRECT_CALLABLE_SCOPE int ipv6_gro_complete(struct sk_buff *skb, int nhoff) if (WARN_ON(!ops || !ops->callbacks.gro_complete)) goto out_unlock; - err = ops->callbacks.gro_complete(skb, nhoff); + err = INDIRECT_CALL_L4(ops->callbacks.gro_complete, tcp6_gro_complete, + udp6_gro_complete, skb, nhoff); out_unlock: rcu_read_unlock(); |