SUNRPC: Restrict sunrpc client exports

The sunrpc client exports are not meant to be part of any official kernel
API: they can change at the drop of a hat. Mark them as internal functions
using EXPORT_SYMBOL_GPL.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

net/sunrpc/auth.c

@@ -51,7 +51,7 @@ rpcauth_register(const struct rpc_authops *ops)
 	spin_unlock(&rpc_authflavor_lock);
 	return ret;
 }
-EXPORT_SYMBOL(rpcauth_register);
+EXPORT_SYMBOL_GPL(rpcauth_register);
 
 int
 rpcauth_unregister(const struct rpc_authops *ops)
@@ -69,7 +69,7 @@ rpcauth_unregister(const struct rpc_authops *ops)
 	spin_unlock(&rpc_authflavor_lock);
 	return ret;
 }
-EXPORT_SYMBOL(rpcauth_unregister);
+EXPORT_SYMBOL_GPL(rpcauth_unregister);
 
 struct rpc_auth *
 rpcauth_create(rpc_authflavor_t pseudoflavor, struct rpc_clnt *clnt)
@@ -104,7 +104,7 @@ rpcauth_create(rpc_authflavor_t pseudoflavor, struct rpc_clnt *clnt)
 out:
 	return auth;
 }
-EXPORT_SYMBOL(rpcauth_create);
+EXPORT_SYMBOL_GPL(rpcauth_create);
 
 void
 rpcauth_release(struct rpc_auth *auth)
@@ -154,7 +154,7 @@ rpcauth_init_credcache(struct rpc_auth *auth)
 	auth->au_credcache = new;
 	return 0;
 }
-EXPORT_SYMBOL(rpcauth_init_credcache);
+EXPORT_SYMBOL_GPL(rpcauth_init_credcache);
 
 /*
  * Destroy a list of credentials
@@ -217,7 +217,7 @@ rpcauth_destroy_credcache(struct rpc_auth *auth)
 		kfree(cache);
 	}
 }
-EXPORT_SYMBOL(rpcauth_destroy_credcache);
+EXPORT_SYMBOL_GPL(rpcauth_destroy_credcache);
 
 /*
  * Remove stale credentials. Avoid sleeping inside the loop.
@@ -337,7 +337,7 @@ rpcauth_lookup_credcache(struct rpc_auth *auth, struct auth_cred * acred,
 out:
 	return cred;
 }
-EXPORT_SYMBOL(rpcauth_lookup_credcache);
+EXPORT_SYMBOL_GPL(rpcauth_lookup_credcache);
 
 struct rpc_cred *
 rpcauth_lookupcred(struct rpc_auth *auth, int flags)
@@ -356,7 +356,7 @@ rpcauth_lookupcred(struct rpc_auth *auth, int flags)
 	put_group_info(acred.group_info);
 	return ret;
 }
-EXPORT_SYMBOL(rpcauth_lookupcred);
+EXPORT_SYMBOL_GPL(rpcauth_lookupcred);
 
 void
 rpcauth_init_cred(struct rpc_cred *cred, const struct auth_cred *acred,
@@ -373,7 +373,7 @@ rpcauth_init_cred(struct rpc_cred *cred, const struct auth_cred *acred,
 #endif
 	cred->cr_uid = acred->uid;
 }
-EXPORT_SYMBOL(rpcauth_init_cred);
+EXPORT_SYMBOL_GPL(rpcauth_init_cred);
 
 struct rpc_cred *
 rpcauth_bindcred(struct rpc_task *task)
@@ -442,7 +442,7 @@ put_rpccred(struct rpc_cred *cred)
 out_destroy:
 	cred->cr_ops->crdestroy(cred);
 }
-EXPORT_SYMBOL(put_rpccred);
+EXPORT_SYMBOL_GPL(put_rpccred);
 
 void
 rpcauth_unbindcred(struct rpc_task *task)

net/sunrpc/clnt.c

@@ -345,7 +345,7 @@ rpc_clone_client(struct rpc_clnt *clnt)
 	dprintk("RPC:       %s: returned error %d\n", __FUNCTION__, err);
 	return ERR_PTR(err);
 }
-EXPORT_SYMBOL(rpc_clone_client);
+EXPORT_SYMBOL_GPL(rpc_clone_client);
 
 /*
  * Properly shut down an RPC client, terminating all outstanding
@@ -364,7 +364,7 @@ void rpc_shutdown_client(struct rpc_clnt *clnt)
 
 	rpc_release_client(clnt);
 }
-EXPORT_SYMBOL(rpc_shutdown_client);
+EXPORT_SYMBOL_GPL(rpc_shutdown_client);
 
 /*
  * Free an RPC client
@@ -469,7 +469,7 @@ struct rpc_clnt *rpc_bind_new_program(struct rpc_clnt *old,
 out:
 	return clnt;
 }
-EXPORT_SYMBOL(rpc_bind_new_program);
+EXPORT_SYMBOL_GPL(rpc_bind_new_program);
 
 /*
  * Default callback for async RPC calls
@@ -515,13 +515,13 @@ void rpc_clnt_sigmask(struct rpc_clnt *clnt, sigset_t *oldset)
 {
 	rpc_save_sigmask(oldset, clnt->cl_intr);
 }
-EXPORT_SYMBOL(rpc_clnt_sigmask);
+EXPORT_SYMBOL_GPL(rpc_clnt_sigmask);
 
 void rpc_clnt_sigunmask(struct rpc_clnt *clnt, sigset_t *oldset)
 {
 	rpc_restore_sigmask(oldset);
 }
-EXPORT_SYMBOL(rpc_clnt_sigunmask);
+EXPORT_SYMBOL_GPL(rpc_clnt_sigunmask);
 
 static
 struct rpc_task *rpc_do_run_task(struct rpc_clnt *clnt,
@@ -577,7 +577,7 @@ int rpc_call_sync(struct rpc_clnt *clnt, struct rpc_message *msg, int flags)
 	rpc_put_task(task);
 	return status;
 }
-EXPORT_SYMBOL(rpc_call_sync);
+EXPORT_SYMBOL_GPL(rpc_call_sync);
 
 /**
  * rpc_call_async - Perform an asynchronous RPC call
@@ -599,7 +599,7 @@ rpc_call_async(struct rpc_clnt *clnt, struct rpc_message *msg, int flags,
 	rpc_put_task(task);
 	return 0;
 }
-EXPORT_SYMBOL(rpc_call_async);
+EXPORT_SYMBOL_GPL(rpc_call_async);
 
 /**
  * rpc_run_task - Allocate a new RPC task, then run rpc_execute against it
@@ -614,7 +614,7 @@ struct rpc_task *rpc_run_task(struct rpc_clnt *clnt, int flags,
 {
 	return rpc_do_run_task(clnt, NULL, flags, tk_ops, data);
 }
-EXPORT_SYMBOL(rpc_run_task);
+EXPORT_SYMBOL_GPL(rpc_run_task);
 
 void
 rpc_call_setup(struct rpc_task *task, struct rpc_message *msg, int flags)
@@ -632,7 +632,7 @@ rpc_call_setup(struct rpc_task *task, struct rpc_message *msg, int flags)
 	else
 		task->tk_action = rpc_exit_task;
 }
-EXPORT_SYMBOL(rpc_call_setup);
+EXPORT_SYMBOL_GPL(rpc_call_setup);
 
 /**
  * rpc_peeraddr - extract remote peer address from clnt's xprt
@@ -679,7 +679,7 @@ rpc_setbufsize(struct rpc_clnt *clnt, unsigned int sndsize, unsigned int rcvsize
 	if (xprt->ops->set_buffer_size)
 		xprt->ops->set_buffer_size(xprt, sndsize, rcvsize);
 }
-EXPORT_SYMBOL(rpc_setbufsize);
+EXPORT_SYMBOL_GPL(rpc_setbufsize);
 
 /*
  * Return size of largest payload RPC client can support, in bytes
@@ -719,7 +719,7 @@ rpc_restart_call(struct rpc_task *task)
 
 	task->tk_action = call_start;
 }
-EXPORT_SYMBOL(rpc_restart_call);
+EXPORT_SYMBOL_GPL(rpc_restart_call);
 
 /*
  * 0.  Initial state
@@ -1529,7 +1529,7 @@ struct rpc_task *rpc_call_null(struct rpc_clnt *clnt, struct rpc_cred *cred, int
 	};
 	return rpc_do_run_task(clnt, &msg, flags, &rpc_default_ops, NULL);
 }
-EXPORT_SYMBOL(rpc_call_null);
+EXPORT_SYMBOL_GPL(rpc_call_null);
 
 #ifdef RPC_DEBUG
 void rpc_show_tasks(void)

net/sunrpc/sched.c

@@ -243,7 +243,7 @@ void rpc_init_wait_queue(struct rpc_wait_queue *queue, const char *qname)
 {
 	__rpc_init_priority_wait_queue(queue, qname, 0);
 }
-EXPORT_SYMBOL(rpc_init_wait_queue);
+EXPORT_SYMBOL_GPL(rpc_init_wait_queue);
 
 static int rpc_wait_bit_interruptible(void *word)
 {
@@ -303,7 +303,7 @@ int __rpc_wait_for_completion_task(struct rpc_task *task, int (*action)(void *))
 	return wait_on_bit(&task->tk_runstate, RPC_TASK_ACTIVE,
 			action, TASK_INTERRUPTIBLE);
 }
-EXPORT_SYMBOL(__rpc_wait_for_completion_task);
+EXPORT_SYMBOL_GPL(__rpc_wait_for_completion_task);
 
 /*
  * Make an RPC task runnable.
@@ -373,7 +373,7 @@ void rpc_sleep_on(struct rpc_wait_queue *q, struct rpc_task *task,
 	__rpc_sleep_on(q, task, action, timer);
 	spin_unlock_bh(&q->lock);
 }
-EXPORT_SYMBOL(rpc_sleep_on);
+EXPORT_SYMBOL_GPL(rpc_sleep_on);
 
 /**
  * __rpc_do_wake_up_task - wake up a single rpc_task
@@ -445,7 +445,7 @@ void rpc_wake_up_task(struct rpc_task *task)
 	}
 	rcu_read_unlock_bh();
 }
-EXPORT_SYMBOL(rpc_wake_up_task);
+EXPORT_SYMBOL_GPL(rpc_wake_up_task);
 
 /*
  * Wake up the next task on a priority queue.
@@ -521,7 +521,7 @@ struct rpc_task * rpc_wake_up_next(struct rpc_wait_queue *queue)
 
 	return task;
 }
-EXPORT_SYMBOL(rpc_wake_up_next);
+EXPORT_SYMBOL_GPL(rpc_wake_up_next);
 
 /**
  * rpc_wake_up - wake up all rpc_tasks
@@ -547,7 +547,7 @@ void rpc_wake_up(struct rpc_wait_queue *queue)
 	spin_unlock(&queue->lock);
 	rcu_read_unlock_bh();
 }
-EXPORT_SYMBOL(rpc_wake_up);
+EXPORT_SYMBOL_GPL(rpc_wake_up);
 
 /**
  * rpc_wake_up_status - wake up all rpc_tasks and set their status value.
@@ -576,7 +576,7 @@ void rpc_wake_up_status(struct rpc_wait_queue *queue, int status)
 	spin_unlock(&queue->lock);
 	rcu_read_unlock_bh();
 }
-EXPORT_SYMBOL(rpc_wake_up_status);
+EXPORT_SYMBOL_GPL(rpc_wake_up_status);
 
 static void __rpc_atrun(struct rpc_task *task)
 {
@@ -591,7 +591,7 @@ void rpc_delay(struct rpc_task *task, unsigned long delay)
 	task->tk_timeout = delay;
 	rpc_sleep_on(&delay_queue, task, NULL, __rpc_atrun);
 }
-EXPORT_SYMBOL(rpc_delay);
+EXPORT_SYMBOL_GPL(rpc_delay);
 
 /*
  * Helper to call task->tk_ops->rpc_call_prepare
@@ -620,7 +620,7 @@ void rpc_exit_task(struct rpc_task *task)
 		}
 	}
 }
-EXPORT_SYMBOL(rpc_exit_task);
+EXPORT_SYMBOL_GPL(rpc_exit_task);
 
 void rpc_release_calldata(const struct rpc_call_ops *ops, void *calldata)
 {
@@ -737,7 +737,7 @@ void rpc_execute(struct rpc_task *task)
 	rpc_set_running(task);
 	__rpc_execute(task);
 }
-EXPORT_SYMBOL(rpc_execute);
+EXPORT_SYMBOL_GPL(rpc_execute);
 
 static void rpc_async_schedule(struct work_struct *work)
 {
@@ -855,7 +855,7 @@ void rpc_init_task(struct rpc_task *task, struct rpc_clnt *clnt, int flags, cons
 	dprintk("RPC:       new task initialized, procpid %u\n",
 				task_pid_nr(current));
 }
-EXPORT_SYMBOL(rpc_init_task);
+EXPORT_SYMBOL_GPL(rpc_init_task);
 
 static struct rpc_task *
 rpc_alloc_task(void)
@@ -910,7 +910,7 @@ void rpc_put_task(struct rpc_task *task)
 		call_rcu_bh(&task->u.tk_rcu, rpc_free_task);
 	rpc_release_calldata(tk_ops, calldata);
 }
-EXPORT_SYMBOL(rpc_put_task);
+EXPORT_SYMBOL_GPL(rpc_put_task);
 
 static void rpc_release_task(struct rpc_task *task)
 {
@@ -967,7 +967,7 @@ void rpc_killall_tasks(struct rpc_clnt *clnt)
 	}
 	spin_unlock(&clnt->cl_lock);
 }
-EXPORT_SYMBOL(rpc_killall_tasks);
+EXPORT_SYMBOL_GPL(rpc_killall_tasks);
 
 int rpciod_up(void)
 {

net/sunrpc/stats.c

@@ -118,7 +118,7 @@ struct rpc_iostats *rpc_alloc_iostats(struct rpc_clnt *clnt)
 	new = kcalloc(clnt->cl_maxproc, sizeof(struct rpc_iostats), GFP_KERNEL);
 	return new;
 }
-EXPORT_SYMBOL(rpc_alloc_iostats);
+EXPORT_SYMBOL_GPL(rpc_alloc_iostats);
 
 /**
  * rpc_free_iostats - release an rpc_iostats structure
@@ -129,7 +129,7 @@ void rpc_free_iostats(struct rpc_iostats *stats)
 {
 	kfree(stats);
 }
-EXPORT_SYMBOL(rpc_free_iostats);
+EXPORT_SYMBOL_GPL(rpc_free_iostats);
 
 /**
  * rpc_count_iostats - tally up per-task stats
@@ -215,7 +215,7 @@ void rpc_print_iostats(struct seq_file *seq, struct rpc_clnt *clnt)
 				metrics->om_execute * MILLISECS_PER_JIFFY);
 	}
 }
-EXPORT_SYMBOL(rpc_print_iostats);
+EXPORT_SYMBOL_GPL(rpc_print_iostats);
 
 /*
  * Register/unregister RPC proc files
@@ -241,14 +241,14 @@ rpc_proc_register(struct rpc_stat *statp)
 {
 	return do_register(statp->program->name, statp, &rpc_proc_fops);
 }
-EXPORT_SYMBOL(rpc_proc_register);
+EXPORT_SYMBOL_GPL(rpc_proc_register);
 
 void
 rpc_proc_unregister(const char *name)
 {
 	remove_proc_entry(name, proc_net_rpc);
 }
-EXPORT_SYMBOL(rpc_proc_unregister);
+EXPORT_SYMBOL_GPL(rpc_proc_unregister);
 
 struct proc_dir_entry *
 svc_proc_register(struct svc_stat *statp, const struct file_operations *fops)

net/sunrpc/sysctl.c

@@ -23,16 +23,16 @@
  * Declare the debug flags here
  */
 unsigned int	rpc_debug;
-EXPORT_SYMBOL(rpc_debug);
+EXPORT_SYMBOL_GPL(rpc_debug);
 
 unsigned int	nfs_debug;
-EXPORT_SYMBOL(nfs_debug);
+EXPORT_SYMBOL_GPL(nfs_debug);
 
 unsigned int	nfsd_debug;
-EXPORT_SYMBOL(nfsd_debug);
+EXPORT_SYMBOL_GPL(nfsd_debug);
 
 unsigned int	nlm_debug;
-EXPORT_SYMBOL(nlm_debug);
+EXPORT_SYMBOL_GPL(nlm_debug);
 
 #ifdef RPC_DEBUG
 

net/sunrpc/xprt.c

@@ -992,7 +992,7 @@ void xprt_set_timeout(struct rpc_timeout *to, unsigned int retr, unsigned long i
 	to->to_retries   = retr;
 	to->to_exponential = 0;
 }
-EXPORT_SYMBOL(xprt_set_timeout);
+EXPORT_SYMBOL_GPL(xprt_set_timeout);
 
 /**
  * xprt_create_transport - create an RPC transport