change system file

hc

2024-10-09 244b2c5ca8b14627e4a17755e5922221e121c771

 kernel/include/net/protocol.h
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@@ -1,3 +1,4 @@
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+/* SPDX-License-Identifier: GPL-2.0-or-later */
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 /*
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  * INET		An implementation of the TCP/IP protocol suite for the LINUX
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  *		operating system.  INET is implemented using the  BSD Socket
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@@ -8,11 +9,6 @@
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  * Version:	@(#)protocol.h	1.0.2	05/07/93
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  *
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  * Author:	Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
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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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  *	Changes:
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  *		Alan Cox	:	Added a name field and a frag handler
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@@ -39,10 +35,11 @@
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 /* This is used to register protocols. */
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 struct net_protocol {
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-	int			(*early_demux)(struct sk_buff *skb);
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-	int			(*early_demux_handler)(struct sk_buff *skb);
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 	int			(*handler)(struct sk_buff *skb);
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-	void			(*err_handler)(struct sk_buff *skb, u32 info);
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+
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+	/* This returns an error if we weren't able to handle the error. */
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+	int			(*err_handler)(struct sk_buff *skb, u32 info);
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+
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 	unsigned int		no_policy:1,
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 				netns_ok:1,
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 				/* does the protocol do more stringent
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@@ -54,14 +51,14 @@
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 #if IS_ENABLED(CONFIG_IPV6)
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 struct inet6_protocol {
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-	void	(*early_demux)(struct sk_buff *skb);
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-	void    (*early_demux_handler)(struct sk_buff *skb);
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 	int	(*handler)(struct sk_buff *skb);
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-	void	(*err_handler)(struct sk_buff *skb,
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+	/* This returns an error if we weren't able to handle the error. */
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+	int	(*err_handler)(struct sk_buff *skb,
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 			       struct inet6_skb_parm *opt,
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 			       u8 type, u8 code, int offset,
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 			       __be32 info);
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+
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 	unsigned int	flags;	/* INET6_PROTO_xxx */
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 };
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