compat: Backport IPv4 reassembly.

[cascardo/ovs.git] / acinclude.m4

diff --git a/acinclude.m4 b/acinclude.m4
index 663f5f0..7793f38 100644 (file)
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -350,6 +350,8 @@ AC_DEFUN([OVS_CHECK_LINUX_COMPAT], [
   OVS_GREP_IFELSE([$KSRC/include/net/ip.h], [ip_do_fragment])
   OVS_GREP_IFELSE([$KSRC/include/net/ip.h], [ip_is_fragment])
   OVS_GREP_IFELSE([$KSRC/include/net/ip.h], [ip_skb_dst_mtu])
+  OVS_GREP_IFELSE([$KSRC/include/net/inet_frag.h], [hashfn.*const],
+                  [OVS_DEFINE([HAVE_INET_FRAGS_CONST])])
   OVS_GREP_IFELSE([$KSRC/include/net/dst_metadata.h], [metadata_dst])
 
   OVS_GREP_IFELSE([$KSRC/include/linux/net.h], [sock_create_kern.*net],
@@ -517,6 +519,12 @@ AC_DEFUN([OVS_CHECK_LINUX_COMPAT], [
   OVS_GREP_IFELSE([$KSRC/include/linux/utsrelease.h], [el6],
                   [OVS_DEFINE([HAVE_RHEL6_PER_CPU])])
 
+  if test "$version" = 4 && test "$patchlevel" -le 2; then
+        OVS_DEFINE([OVS_FRAGMENT_BACKPORT])
+  elif test "$version" = 3 && test "$patchlevel" -ge 10; then
+        OVS_DEFINE([OVS_FRAGMENT_BACKPORT])
+  fi
+
   if cmp -s datapath/linux/kcompat.h.new \
             datapath/linux/kcompat.h >/dev/null 2>&1; then
     rm datapath/linux/kcompat.h.new