Commit ac57d042 authored Nov 10, 2005 by Pavel Roskin Committed by David S. Miller Nov 10, 2005

[NET]: Annotate h_proto in struct ethhdr



The protocol field in ethernet headers is big-endian and should be
annotated as such.  This patch allows detection of missing ntohs() calls
on the ethernet protocol field when sparse is run with __CHECK_ENDIAN__
defined.

This is a revised version that includes <linux/types.h> so that the
userspace programs are not confused by __be16.  Thanks to David S.
Miller.

Signed-off-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent fb286bb2

include/linux/if_ether.h

+3 −1

Original line number	Diff line number	Diff line
		@@ -21,6 +21,8 @@
		#ifndef _LINUX_IF_ETHER_H
		#define _LINUX_IF_ETHER_H

		#include <linux/types.h>

		/*
		* IEEE 802.3 Ethernet magic constants. The frame sizes omit the preamble
		* and FCS/CRC (frame check sequence).
		@@ -100,7 +102,7 @@
		struct ethhdr {
		unsigned char h_dest[ETH_ALEN]; /* destination eth addr */
		unsigned char h_source[ETH_ALEN]; /* source ether addr */
		unsigned short h_proto; /* packet type ID field */
		__be16 h_proto; /* packet type ID field */
		} __attribute__((packed));

		#ifdef __KERNEL__