datapath: compat: Fix skb_has_frag_list definition.

RHEL6-openstack kernel has already replaced skb_has_frags
with skb_has_frag_list().

Fix compilation error on RHEL6-openstack.

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Acked-by: Jesse Gross <jesse@nicira.com>

diff --git a/acinclude.m4 b/acinclude.m4
index a738387..1509b2e 100644 (file)
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -257,6 +257,7 @@ AC_DEFUN([OVS_CHECK_LINUX_COMPAT], [
                   [OVS_DEFINE([HAVE_SKB_WARN_LRO])])
   OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [consume_skb])
   OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_frag_page])
+  OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_has_frag_list])
   OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [__skb_fill_page_desc])
   OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_reset_mac_len])
   OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_unclone])

diff --git a/datapath/linux/compat/include/linux/skbuff.h b/datapath/linux/compat/include/linux/skbuff.h
index d1224ac..de0c56a 100644 (file)
--- a/datapath/linux/compat/include/linux/skbuff.h
+++ b/datapath/linux/compat/include/linux/skbuff.h
@@ -265,7 +265,7 @@ void skb_zerocopy(struct sk_buff *to, const struct sk_buff *from, int len,
 #endif
 
 
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,37)
+#ifndef HAVE_SKB_HAS_FRAG_LIST
 #define skb_has_frag_list skb_has_frags
 #endif