v4.19.13 snapshot.
diff --git a/net/sunrpc/sunrpc_syms.c b/net/sunrpc/sunrpc_syms.c
new file mode 100644
index 0000000..56f9eff
--- /dev/null
+++ b/net/sunrpc/sunrpc_syms.c
@@ -0,0 +1,140 @@
+/*
+ * linux/net/sunrpc/sunrpc_syms.c
+ *
+ * Symbols exported by the sunrpc module.
+ *
+ * Copyright (C) 1997 Olaf Kirch <okir@monad.swb.de>
+ */
+
+#include <linux/module.h>
+
+#include <linux/types.h>
+#include <linux/uio.h>
+#include <linux/unistd.h>
+#include <linux/init.h>
+
+#include <linux/sunrpc/sched.h>
+#include <linux/sunrpc/clnt.h>
+#include <linux/sunrpc/svc.h>
+#include <linux/sunrpc/svcsock.h>
+#include <linux/sunrpc/auth.h>
+#include <linux/workqueue.h>
+#include <linux/sunrpc/rpc_pipe_fs.h>
+#include <linux/sunrpc/xprtsock.h>
+
+#include "netns.h"
+
+unsigned int sunrpc_net_id;
+EXPORT_SYMBOL_GPL(sunrpc_net_id);
+
+static __net_init int sunrpc_init_net(struct net *net)
+{
+ int err;
+ struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);
+
+ err = rpc_proc_init(net);
+ if (err)
+ goto err_proc;
+
+ err = ip_map_cache_create(net);
+ if (err)
+ goto err_ipmap;
+
+ err = unix_gid_cache_create(net);
+ if (err)
+ goto err_unixgid;
+
+ err = rpc_pipefs_init_net(net);
+ if (err)
+ goto err_pipefs;
+
+ INIT_LIST_HEAD(&sn->all_clients);
+ spin_lock_init(&sn->rpc_client_lock);
+ spin_lock_init(&sn->rpcb_clnt_lock);
+ return 0;
+
+err_pipefs:
+ unix_gid_cache_destroy(net);
+err_unixgid:
+ ip_map_cache_destroy(net);
+err_ipmap:
+ rpc_proc_exit(net);
+err_proc:
+ return err;
+}
+
+static __net_exit void sunrpc_exit_net(struct net *net)
+{
+ struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);
+
+ rpc_pipefs_exit_net(net);
+ unix_gid_cache_destroy(net);
+ ip_map_cache_destroy(net);
+ rpc_proc_exit(net);
+ WARN_ON_ONCE(!list_empty(&sn->all_clients));
+}
+
+static struct pernet_operations sunrpc_net_ops = {
+ .init = sunrpc_init_net,
+ .exit = sunrpc_exit_net,
+ .id = &sunrpc_net_id,
+ .size = sizeof(struct sunrpc_net),
+};
+
+static int __init
+init_sunrpc(void)
+{
+ int err = rpc_init_mempool();
+ if (err)
+ goto out;
+ err = rpcauth_init_module();
+ if (err)
+ goto out2;
+
+ cache_initialize();
+
+ err = register_pernet_subsys(&sunrpc_net_ops);
+ if (err)
+ goto out3;
+
+ err = register_rpc_pipefs();
+ if (err)
+ goto out4;
+
+ sunrpc_debugfs_init();
+#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
+ rpc_register_sysctl();
+#endif
+ svc_init_xprt_sock(); /* svc sock transport */
+ init_socket_xprt(); /* clnt sock transport */
+ return 0;
+
+out4:
+ unregister_pernet_subsys(&sunrpc_net_ops);
+out3:
+ rpcauth_remove_module();
+out2:
+ rpc_destroy_mempool();
+out:
+ return err;
+}
+
+static void __exit
+cleanup_sunrpc(void)
+{
+ rpc_cleanup_clids();
+ rpcauth_remove_module();
+ cleanup_socket_xprt();
+ svc_cleanup_xprt_sock();
+ sunrpc_debugfs_exit();
+ unregister_rpc_pipefs();
+ rpc_destroy_mempool();
+ unregister_pernet_subsys(&sunrpc_net_ops);
+#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
+ rpc_unregister_sysctl();
+#endif
+ rcu_barrier(); /* Wait for completion of call_rcu()'s */
+}
+MODULE_LICENSE("GPL");
+fs_initcall(init_sunrpc); /* Ensure we're initialised before nfs */
+module_exit(cleanup_sunrpc);