diff options
Diffstat (limited to 'include/net/sock.h')
| -rw-r--r-- | include/net/sock.h | 25 |
1 files changed, 23 insertions, 2 deletions
diff --git a/include/net/sock.h b/include/net/sock.h index 4d2e8ad98985..b3b75419eafe 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -481,6 +481,11 @@ struct sock { void (*sk_error_report)(struct sock *sk); int (*sk_backlog_rcv)(struct sock *sk, struct sk_buff *skb); +#ifdef CONFIG_SOCK_VALIDATE_XMIT + struct sk_buff* (*sk_validate_xmit_skb)(struct sock *sk, + struct net_device *dev, + struct sk_buff *skb); +#endif void (*sk_destruct)(struct sock *sk); struct sock_reuseport __rcu *sk_reuseport_cb; struct rcu_head sk_rcu; @@ -803,10 +808,10 @@ static inline bool sock_flag(const struct sock *sk, enum sock_flags flag) } #ifdef CONFIG_NET -extern struct static_key memalloc_socks; +DECLARE_STATIC_KEY_FALSE(memalloc_socks_key); static inline int sk_memalloc_socks(void) { - return static_key_false(&memalloc_socks); + return static_branch_unlikely(&memalloc_socks_key); } #else @@ -2330,6 +2335,22 @@ static inline bool sk_fullsock(const struct sock *sk) return (1 << sk->sk_state) & ~(TCPF_TIME_WAIT | TCPF_NEW_SYN_RECV); } +/* Checks if this SKB belongs to an HW offloaded socket + * and whether any SW fallbacks are required based on dev. + */ +static inline struct sk_buff *sk_validate_xmit_skb(struct sk_buff *skb, + struct net_device *dev) +{ +#ifdef CONFIG_SOCK_VALIDATE_XMIT + struct sock *sk = skb->sk; + + if (sk && sk_fullsock(sk) && sk->sk_validate_xmit_skb) + skb = sk->sk_validate_xmit_skb(sk, dev, skb); +#endif + + return skb; +} + /* This helper checks if a socket is a LISTEN or NEW_SYN_RECV * SYNACK messages can be attached to either ones (depending on SYNCOOKIE) */ |