tls_driver_ctx
tx_ctx = tls_driver_ctx(sk, direction);
tx_ctx = tls_driver_ctx(sk, direction);
tls_ctx = tls_driver_ctx(skb->sk, TLS_OFFLOAD_CTX_DIR_TX);
tls_ctx = tls_driver_ctx(skb->sk, TLS_OFFLOAD_CTX_DIR_TX);
ntls = tls_driver_ctx(sk, direction);
ntls = tls_driver_ctx(sk, direction);
ntls = tls_driver_ctx(sk, TLS_OFFLOAD_CTX_DIR_RX);
ntls = tls_driver_ctx(skb->sk, TLS_OFFLOAD_CTX_DIR_TX);
ntls = tls_driver_ctx(skb->sk, TLS_OFFLOAD_CTX_DIR_TX);