修改4g拨号为QMI,需要在系统里后台执行quectel-CM

hc

2024-10-22 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5

 kernel/net/caif/caif_socket.c
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@@ -1,7 +1,7 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * Copyright (C) ST-Ericsson AB 2010
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  * Author:	Sjur Brendeland
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- * License terms: GNU General Public License (GPL) version 2
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  */
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 #define pr_fmt(fmt) KBUILD_MODNAME ":%s(): " fmt, __func__
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@@ -670,8 +670,8 @@
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 	return sent ? : err;
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 }
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-static int setsockopt(struct socket *sock,
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-		      int lvl, int opt, char __user *ov, unsigned int ol)
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+static int setsockopt(struct socket *sock, int lvl, int opt, sockptr_t ov,
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+		unsigned int ol)
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 {
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 	struct sock *sk = sock->sk;
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 	struct caifsock *cf_sk = container_of(sk, struct caifsock, sk);
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@@ -686,7 +686,7 @@
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 			return -EINVAL;
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 		if (lvl != SOL_CAIF)
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 			goto bad_sol;
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-		if (copy_from_user(&linksel, ov, sizeof(int)))
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+		if (copy_from_sockptr(&linksel, ov, sizeof(int)))
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 			return -EINVAL;
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 		lock_sock(&(cf_sk->sk));
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 		cf_sk->conn_req.link_selector = linksel;
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@@ -700,7 +700,7 @@
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 			return -ENOPROTOOPT;
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 		lock_sock(&(cf_sk->sk));
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 		if (ol > sizeof(cf_sk->conn_req.param.data) ||
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-			copy_from_user(&cf_sk->conn_req.param.data, ov, ol)) {
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+		    copy_from_sockptr(&cf_sk->conn_req.param.data, ov, ol)) {
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 			release_sock(&cf_sk->sk);
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 			return -EINVAL;
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 		}
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@@ -982,7 +982,6 @@
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 	.listen = sock_no_listen,
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 	.shutdown = sock_no_shutdown,
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 	.setsockopt = setsockopt,
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-	.getsockopt = sock_no_getsockopt,
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 	.sendmsg = caif_seqpkt_sendmsg,
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 	.recvmsg = caif_seqpkt_recvmsg,
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 	.mmap = sock_no_mmap,
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@@ -1003,7 +1002,6 @@
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 	.listen = sock_no_listen,
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 	.shutdown = sock_no_shutdown,
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 	.setsockopt = setsockopt,
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-	.getsockopt = sock_no_getsockopt,
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 	.sendmsg = caif_stream_sendmsg,
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 	.recvmsg = caif_stream_recvmsg,
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 	.mmap = sock_no_mmap,
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@@ -1022,6 +1020,7 @@
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 		return;
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 	}
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 	sk_stream_kill_queues(&cf_sk->sk);
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+	WARN_ON(sk->sk_forward_alloc);
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 	caif_free_client(&cf_sk->layer);
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 }
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