net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules

These files are non modular, but need to export symbols using
the macros now living in export.h -- call out the include so
that things won't break when we remove the implicit presence
of module.h from everywhere.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>

net/sunrpc/addr.c

@@ -19,6 +19,7 @@
 #include <net/ipv6.h>
 #include <linux/sunrpc/clnt.h>
 #include <linux/slab.h>
+#include <linux/export.h>
 
 #if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
 

net/sunrpc/backchannel_rqst.c

@@ -24,6 +24,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <linux/tcp.h>
 #include <linux/slab.h>
 #include <linux/sunrpc/xprt.h>
+#include <linux/export.h>
 
 #ifdef RPC_DEBUG
 #define RPCDBG_FACILITY	RPCDBG_TRANS

net/sunrpc/socklib.c

@@ -14,6 +14,7 @@
 #include <linux/pagemap.h>
 #include <linux/udp.h>
 #include <linux/sunrpc/xdr.h>
+#include <linux/export.h>
 
 
 /**

net/sunrpc/xprtrdma/svc_rdma_transport.c

@@ -50,6 +50,7 @@
 #include <rdma/ib_verbs.h>
 #include <rdma/rdma_cm.h>
 #include <linux/sunrpc/svc_rdma.h>
+#include <linux/export.h>
 
 #define RPCDBG_FACILITY	RPCDBG_SVCXPRT