From 37f49e37ab4cb5d0bc4c60eb5c6d4dd57db767bb Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 10 May 2024 07:44:59 +0000
Subject: [PATCH] gmac get mac form eeprom

---
 kernel/net/ipv4/tcp_ulp.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/kernel/net/ipv4/tcp_ulp.c b/kernel/net/ipv4/tcp_ulp.c
index 7c27aa6..8e135af 100644
--- a/kernel/net/ipv4/tcp_ulp.c
+++ b/kernel/net/ipv4/tcp_ulp.c
@@ -136,6 +136,10 @@
 	if (icsk->icsk_ulp_ops)
 		goto out_err;
 
+	err = -ENOTCONN;
+	if (!ulp_ops->clone && sk->sk_state == TCP_LISTEN)
+		goto out_err;
+
 	err = ulp_ops->init(sk);
 	if (err)
 		goto out_err;

--
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