datapath: Fix build with backported netdev_alloc_skb_ip_align()

[sliver-openvswitch.git] / acinclude.m4

diff --git a/acinclude.m4 b/acinclude.m4
index 80794da..a0abdb5 100644 (file)
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -182,6 +182,8 @@ AC_DEFUN([OVS_CHECK_LINUX26_COMPAT], [
                   [OVS_DEFINE([HAVE_SKBUFF_HEADER_HELPERS])])
   OVS_GREP_IFELSE([$KSRC26/include/linux/skbuff.h], [skb_warn_if_lro],
                   [OVS_DEFINE([HAVE_SKB_WARN_LRO])])
+  OVS_GREP_IFELSE([$KSRC26/include/linux/skbuff.h], [netdev_alloc_skb_ip_align],
+                  [OVS_DEFINE([HAVE_NETDEV_ALLOC_SKB_IP_ALIGN])])
 
   OVS_GREP_IFELSE([$KSRC26/include/linux/string.h $KSRC26/include/linux/slab.h],
                   [kmemdup], [OVS_DEFINE([HAVE_KMEMDUP])])