Red Hat Enterprise Linux 6 has backported it from upstream,
so check for ip_is_fragment instead of kernel version.
Signed-off-by: Flavio Leitner <f...@redhat.com>
---
acinclude.m4 | 1 +
datapath/linux/compat/include/net/ip.h | 2 +-
2 files changed, 2 insertions(+), 1 deletion(-)
diff --git a/acinclude.m4 b/acinclude.m4
index 5e34d92..6e28788 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -329,6 +329,7 @@ AC_DEFUN([OVS_CHECK_LINUX_COMPAT], [
[OVS_DEFINE([HAVE_IP_SELECT_IDENT_USING_DST_ENTRY])])
OVS_GREP_IFELSE([$KSRC/include/net/ip.h], [inet_get_local_port_range.*net],
[OVS_DEFINE([HAVE_INET_GET_LOCAL_PORT_RANGE_USING_NET])])
+ OVS_GREP_IFELSE([$KSRC/include/net/ip.h], [ip_is_fragment])
OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [dev_disable_lro])
OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [dev_get_stats])
diff --git a/datapath/linux/compat/include/net/ip.h
b/datapath/linux/compat/include/net/ip.h
index b606177..a9401a7 100644
--- a/datapath/linux/compat/include/net/ip.h
+++ b/datapath/linux/compat/include/net/ip.h
@@ -5,7 +5,7 @@
#include <linux/version.h>
-#if LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0)
+#ifndef HAVE_IP_IS_FRAGMENT
static inline bool ip_is_fragment(const struct iphdr *iph)
{
return (iph->frag_off & htons(IP_MF | IP_OFFSET)) != 0;
--
2.1.0
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