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/802/psnap.c
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@@ -1,14 +1,10 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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  *	SNAP data link layer. Derived from 802.2
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  *
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  *		Alan Cox <alan@lxorguk.ukuu.org.uk>,
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  *		from the 802.2 layer by Greg Page.
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  *		Merged in additions from Greg Page's psnap.c.
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- *
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- *		This program is free software; you can redistribute it and/or
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- *		modify it under the terms of the GNU General Public License
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- *		as published by the Free Software Foundation; either version
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- *		2 of the License, or (at your option) any later version.
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  */
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 #include <linux/module.h>
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@@ -34,7 +30,7 @@
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 {
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 	struct datalink_proto *proto = NULL, *p;
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-	list_for_each_entry_rcu(p, &snap_list, node) {
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+	list_for_each_entry_rcu(p, &snap_list, node, lockdep_is_held(&snap_lock)) {
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 		if (!memcmp(p->type, desc, 5)) {
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 			proto = p;
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 			break;