SUNRPC: allow sunrpc.o to link when CONFIG_SYSCTL is disabled

 The sunrpc module should build properly even when CONFIG_SYSCTL is
 disabled.

 Reported by Jan-Benedict Glaw.

 Test plan:
 Compile kernel with CONFIG_NFS as a module and built-in, and CONFIG_SYSCTL
 enabled and disabled.

 Signed-off-by: Chuck Lever <cel@netapp.com>
 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

net/sunrpc/sunrpc_syms.c

@@ -63,8 +63,6 @@ EXPORT_SYMBOL(rpc_mkpipe);
 /* Client transport */
 EXPORT_SYMBOL(xprt_create_proto);
 EXPORT_SYMBOL(xprt_set_timeout);
-EXPORT_SYMBOL(xprt_udp_slot_table_entries);
-EXPORT_SYMBOL(xprt_tcp_slot_table_entries);
 
 /* Client credential cache */
 EXPORT_SYMBOL(rpcauth_register);

net/sunrpc/sysctl.c

@@ -119,13 +119,6 @@ done:
 	return 0;
 }
 
-unsigned int xprt_udp_slot_table_entries = RPC_DEF_SLOT_TABLE;
-unsigned int xprt_tcp_slot_table_entries = RPC_DEF_SLOT_TABLE;
-unsigned int xprt_min_resvport = RPC_DEF_MIN_RESVPORT;
-EXPORT_SYMBOL(xprt_min_resvport);
-unsigned int xprt_max_resvport = RPC_DEF_MAX_RESVPORT;
-EXPORT_SYMBOL(xprt_max_resvport);
-
 
 static unsigned int min_slot_table_size = RPC_MIN_SLOT_TABLE;
 static unsigned int max_slot_table_size = RPC_MAX_SLOT_TABLE;

net/sunrpc/xprtsock.c

@@ -35,6 +35,15 @@
 #include <net/udp.h>
 #include <net/tcp.h>
 
+/*
+ * xprtsock tunables
+ */
+unsigned int xprt_udp_slot_table_entries = RPC_DEF_SLOT_TABLE;
+unsigned int xprt_tcp_slot_table_entries = RPC_DEF_SLOT_TABLE;
+
+unsigned int xprt_min_resvport = RPC_DEF_MIN_RESVPORT;
+unsigned int xprt_max_resvport = RPC_DEF_MAX_RESVPORT;
+
 /*
  * How many times to try sending a request on a socket before waiting
  * for the socket buffer to clear.