datapath: Include <linux/netlink.h> directly into flow.h.

While doing test builds on numerous kernel versions I found that one build
failed because "struct nlattr" wasn't visible from flow.h.  I guess that
we accidentally depend on <linux/netlink.h> being included indirectly, but
this didn't always happen.

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

diff --git a/datapath/flow.h b/datapath/flow.h
index d58196e7f08e7d42cd2d4f1b17e660215d08ef8d..808e731fc9d85cc04a3aac70f96ab3a20e81e4f0 100644 (file)
--- a/datapath/flow.h
+++ b/datapath/flow.h
@@ -10,6 +10,7 @@
 #define FLOW_H 1
 
 #include <linux/kernel.h>
+#include <linux/netlink.h>
 #include <linux/spinlock.h>
 #include <linux/types.h>
 #include <linux/rcupdate.h>