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From 75ba4a547282f91d653872a4bba5f5eae234ea6c Mon Sep 17 00:00:00 2001
From: rofl0r <retnyg@gmx.net>
Date: Wed, 22 Jan 2014 00:57:48 +0100
Subject: [PATCH 2/3] libc-compat.h: prevent redefinition of struct ethhdr
---
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Upstream-Status: Submitted
include/uapi/linux/if_ether.h | 4 +++-
include/uapi/linux/libc-compat.h | 6 ++++++
2 files changed, 9 insertions(+), 1 deletion(-)
diff --git a/include/uapi/linux/if_ether.h b/include/uapi/linux/if_ether.h
index aa63ed0..e94da57 100644
--- a/include/uapi/linux/if_ether.h
+++ b/include/uapi/linux/if_ether.h
@@ -22,6 +22,7 @@
#define _UAPI_LINUX_IF_ETHER_H
#include <linux/types.h>
+#include <linux/libc-compat.h>
/*
* IEEE 802.3 Ethernet magic constants. The frame sizes omit the preamble
@@ -134,11 +135,12 @@
* This is an Ethernet frame header.
*/
+#if __UAPI_DEF_ETHHDR
struct ethhdr {
unsigned char h_dest[ETH_ALEN]; /* destination eth addr */
unsigned char h_source[ETH_ALEN]; /* source ether addr */
__be16 h_proto; /* packet type ID field */
} __attribute__((packed));
-
+#endif
#endif /* _UAPI_LINUX_IF_ETHER_H */
diff --git a/include/uapi/linux/libc-compat.h b/include/uapi/linux/libc-compat.h
index afe15c2..7d0c78a 100644
--- a/include/uapi/linux/libc-compat.h
+++ b/include/uapi/linux/libc-compat.h
@@ -50,6 +50,12 @@
#ifndef __KERNEL__ /* we're used from userspace */
+#ifdef _NETINET_IF_ETHER_H /* musl */
+#define __UAPI_DEF_ETHHDR 0
+#else /* glibc uses __NETINET_IF_ETHER_H, and includes the kernel header. */
+#define __UAPI_DEF_ETHHDR 1
+#endif
+
/* Coordinate with libc netinet/in.h header. */
#if defined(_NETINET_IN_H)
--
2.6.4
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