SOCK_MIN_SNDBUF  2091 include/net/sock.h 		sk->sk_sndbuf = max_t(u32, sk->sk_sndbuf, SOCK_MIN_SNDBUF);
SOCK_MIN_SNDBUF   303 include/net/tcp.h 	if (sk->sk_wmem_queued > SOCK_MIN_SNDBUF &&