dpif-linux: Avoid null dereference if all ports disappear.

[cascardo/ovs.git] / acinclude.m4

diff --git a/acinclude.m4 b/acinclude.m4
index cb563c6..d5f5830 100644 (file)
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -260,6 +260,7 @@ AC_DEFUN([OVS_CHECK_LINUX_COMPAT], [
   OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_frag_page])
   OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_reset_mac_len])
   OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_unclone])
+  OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [l4_rxhash])
 
   OVS_GREP_IFELSE([$KSRC/include/linux/types.h], [bool],
                   [OVS_DEFINE([HAVE_BOOL_TYPE])])