diff options
Diffstat (limited to 'include/net/tcp.h')
| -rw-r--r-- | include/net/tcp.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/net/tcp.h b/include/net/tcp.h index 2b89f1ab8552..999f3efe572b 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -827,6 +827,16 @@ static inline int tcp_v6_iif(const struct sk_buff *skb) return l3_slave ? skb->skb_iif : TCP_SKB_CB(skb)->header.h6.iif; } + +/* TCP_SKB_CB reference means this can not be used from early demux */ +static inline int tcp_v6_sdif(const struct sk_buff *skb) +{ +#if IS_ENABLED(CONFIG_NET_L3_MASTER_DEV) + if (skb && ipv6_l3mdev_skb(TCP_SKB_CB(skb)->header.h6.flags)) + return TCP_SKB_CB(skb)->header.h6.iif; +#endif + return 0; +} #endif /* TCP_SKB_CB reference means this can not be used from early demux */ |