From 01573e231f18eb2d99162747186f59511f56b64d Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 08 Dec 2023 10:40:48 +0000
Subject: [PATCH] 移去rt

---
 kernel/net/netrom/af_netrom.c |   35 +++++++++++------------------------
 1 files changed, 11 insertions(+), 24 deletions(-)

diff --git a/kernel/net/netrom/af_netrom.c b/kernel/net/netrom/af_netrom.c
index 43910e5..e5c8a29 100644
--- a/kernel/net/netrom/af_netrom.c
+++ b/kernel/net/netrom/af_netrom.c
@@ -1,8 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  *
  * Copyright Jonathan Naylor G4KLX (g4klx@g4klx.demon.co.uk)
  * Copyright Alan Cox GW4PTS (alan@lxorguk.ukuu.org.uk)
@@ -297,11 +294,11 @@
  */
 
 static int nr_setsockopt(struct socket *sock, int level, int optname,
-	char __user *optval, unsigned int optlen)
+		sockptr_t optval, unsigned int optlen)
 {
 	struct sock *sk = sock->sk;
 	struct nr_sock *nr = nr_sk(sk);
-	unsigned long opt;
+	unsigned int opt;
 
 	if (level != SOL_NETROM)
 		return -ENOPROTOOPT;
@@ -309,18 +306,18 @@
 	if (optlen < sizeof(unsigned int))
 		return -EINVAL;
 
-	if (get_user(opt, (unsigned int __user *)optval))
+	if (copy_from_sockptr(&opt, optval, sizeof(opt)))
 		return -EFAULT;
 
 	switch (optname) {
 	case NETROM_T1:
-		if (opt < 1 || opt > ULONG_MAX / HZ)
+		if (opt < 1 || opt > UINT_MAX / HZ)
 			return -EINVAL;
 		nr->t1 = opt * HZ;
 		return 0;
 
 	case NETROM_T2:
-		if (opt < 1 || opt > ULONG_MAX / HZ)
+		if (opt < 1 || opt > UINT_MAX / HZ)
 			return -EINVAL;
 		nr->t2 = opt * HZ;
 		return 0;
@@ -332,13 +329,13 @@
 		return 0;
 
 	case NETROM_T4:
-		if (opt < 1 || opt > ULONG_MAX / HZ)
+		if (opt < 1 || opt > UINT_MAX / HZ)
 			return -EINVAL;
 		nr->t4 = opt * HZ;
 		return 0;
 
 	case NETROM_IDLE:
-		if (opt > ULONG_MAX / (60 * HZ))
+		if (opt > UINT_MAX / (60 * HZ))
 			return -EINVAL;
 		nr->idle = opt * 60 * HZ;
 		return 0;
@@ -1201,7 +1198,6 @@
 {
 	struct sock *sk = sock->sk;
 	void __user *argp = (void __user *)arg;
-	int ret;
 
 	switch (cmd) {
 	case TIOCOUTQ: {
@@ -1226,18 +1222,6 @@
 		release_sock(sk);
 		return put_user(amount, (int __user *)argp);
 	}
-
-	case SIOCGSTAMP:
-		lock_sock(sk);
-		ret = sock_get_timestamp(sk, argp);
-		release_sock(sk);
-		return ret;
-
-	case SIOCGSTAMPNS:
-		lock_sock(sk);
-		ret = sock_get_timestampns(sk, argp);
-		release_sock(sk);
-		return ret;
 
 	case SIOCGIFADDR:
 	case SIOCSIFADDR:
@@ -1268,6 +1252,7 @@
 #ifdef CONFIG_PROC_FS
 
 static void *nr_info_start(struct seq_file *seq, loff_t *pos)
+	__acquires(&nr_list_lock)
 {
 	spin_lock_bh(&nr_list_lock);
 	return seq_hlist_start_head(&nr_list, *pos);
@@ -1279,6 +1264,7 @@
 }
 
 static void nr_info_stop(struct seq_file *seq, void *v)
+	__releases(&nr_list_lock)
 {
 	spin_unlock_bh(&nr_list_lock);
 }
@@ -1364,6 +1350,7 @@
 	.getname	=	nr_getname,
 	.poll		=	datagram_poll,
 	.ioctl		=	nr_ioctl,
+	.gettstamp	=	sock_gettstamp,
 	.listen		=	nr_listen,
 	.shutdown	=	sock_no_shutdown,
 	.setsockopt	=	nr_setsockopt,

--
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