datapath: Add missing #include for skb page accessors.

Reported-by: Ben Pfaff <blp@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>

diff --git a/datapath/linux/compat/include/linux/skbuff.h b/datapath/linux/compat/include/linux/skbuff.h
index ced572e..a5f8702 100644 (file)
--- a/datapath/linux/compat/include/linux/skbuff.h
+++ b/datapath/linux/compat/include/linux/skbuff.h
@@ -188,6 +188,8 @@ static inline bool skb_warn_if_lro(const struct sk_buff *skb)
 #endif
 
 #ifndef HAVE_SKB_FRAG_PAGE
+#include <linux/mm.h>
+
 static inline struct page *skb_frag_page(const skb_frag_t *frag)
 {
        return frag->page;