commit a5c2af9922a94a875c5f4b2dcd357a1c399b7ea6
author Allan Stephens <Allan.Stephens@windriver.com> Tue Nov 30 12:00:58 2010 +0000
committer David S. Miller <davem@davemloft.net> Thu Dec 02 13:34:04 2010 -0800
tree e88b61206f57ccca821f7dd479d24b39279946e3
parent 528c771e87c3fa661bc6983b5bf0ba464d9f7c3a

tipc: Remove support for TIPC mode change callback

Eliminates support for the callback routine invoked when TIPC
changes its mode of operation from inactive to standalone or from
standalone to networked. This callback was part of TIPC's obsolete
native API and is not used by TIPC internally.

Signed-off-by: Allan Stephens <Allan.Stephens@windriver.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/tipc/config.c

diff --git a/net/tipc/config.c b/net/tipc/config.c
index 2ee5a9a..bdde39f 100644
--- a/net/tipc/config.c
+++ b/net/tipc/config.c
@@ -560,7 +560,7 @@
 	struct tipc_name_seq seq;
 	int res;
 
-	res = tipc_attach(&mng.user_ref, NULL, NULL);
+	res = tipc_attach(&mng.user_ref);
 	if (res)
 		goto failed;
 

net/tipc/subscr.c

diff --git a/net/tipc/subscr.c b/net/tipc/subscr.c
index e7fb38b..e13c89a 100644
--- a/net/tipc/subscr.c
+++ b/net/tipc/subscr.c
@@ -549,7 +549,7 @@
 	INIT_LIST_HEAD(&topsrv.subscriber_list);
 
 	spin_lock_bh(&topsrv.lock);
-	res = tipc_attach(&topsrv.user_ref, NULL, NULL);
+	res = tipc_attach(&topsrv.user_ref);
 	if (res) {
 		spin_unlock_bh(&topsrv.lock);
 		return res;

net/tipc/user_reg.c

diff --git a/net/tipc/user_reg.c b/net/tipc/user_reg.c
index 50692880..2e2702e 100644
--- a/net/tipc/user_reg.c
+++ b/net/tipc/user_reg.c
@@ -50,15 +50,11 @@
 /**
  * struct tipc_user - registered TIPC user info
  * @next: index of next free registry entry (or -1 for an allocated entry)
- * @callback: ptr to routine to call when TIPC mode changes (NULL if none)
- * @usr_handle: user-defined value passed to callback routine
  * @ports: list of user ports owned by the user
  */
 
 struct tipc_user {
 	int next;
-	tipc_mode_event callback;
-	void *usr_handle;
 	struct list_head ports;
 };
 
@@ -95,41 +91,12 @@
 }
 
 /**
- * reg_callback - inform TIPC user about current operating mode
- */
-
-static void reg_callback(struct tipc_user *user_ptr)
-{
-	tipc_mode_event cb;
-	void *arg;
-
-	spin_lock_bh(&reg_lock);
-	cb = user_ptr->callback;
-	arg = user_ptr->usr_handle;
-	spin_unlock_bh(&reg_lock);
-
-	if (cb)
-		cb(arg, tipc_mode, tipc_own_addr);
-}
-
-/**
  * tipc_reg_start - activate TIPC user registry
  */
 
 int tipc_reg_start(void)
 {
-	u32 u;
-	int res;
-
-	if ((res = reg_init()))
-		return res;
-
-	for (u = 1; u <= MAX_USERID; u++) {
-		if (users[u].callback)
-			tipc_k_signal((Handler)reg_callback,
-				      (unsigned long)&users[u]);
-	}
-	return 0;
+	return reg_init();
 }
 
 /**
@@ -138,15 +105,9 @@
 
 void tipc_reg_stop(void)
 {
-	int id;
-
 	if (!users)
 		return;
 
-	for (id = 1; id <= MAX_USERID; id++) {
-		if (users[id].callback)
-			reg_callback(&users[id]);
-	}
 	kfree(users);
 	users = NULL;
 }
@@ -157,12 +118,10 @@
  * NOTE: This routine may be called when TIPC is inactive.
  */
 
-int tipc_attach(u32 *userid, tipc_mode_event cb, void *usr_handle)
+int tipc_attach(u32 *userid)
 {
 	struct tipc_user *user_ptr;
 
-	if ((tipc_mode == TIPC_NOT_RUNNING) && !cb)
-		return -ENOPROTOOPT;
 	if (!users)
 		reg_init();
 
@@ -177,13 +136,9 @@
 	user_ptr->next = -1;
 	spin_unlock_bh(&reg_lock);
 
-	user_ptr->callback = cb;
-	user_ptr->usr_handle = usr_handle;
 	INIT_LIST_HEAD(&user_ptr->ports);
 	atomic_inc(&tipc_user_count);
 
-	if (cb && (tipc_mode != TIPC_NOT_RUNNING))
-		tipc_k_signal((Handler)reg_callback, (unsigned long)user_ptr);
 	return 0;
 }
 
@@ -207,7 +162,6 @@
 	}
 
 	user_ptr = &users[userid];
-	user_ptr->callback = NULL;
 	INIT_LIST_HEAD(&ports_temp);
 	list_splice(&user_ptr->ports, &ports_temp);
 	user_ptr->next = next_free_user;

net/tipc/user_reg.h

diff --git a/net/tipc/user_reg.h b/net/tipc/user_reg.h
index a05981f..109eed0 100644
--- a/net/tipc/user_reg.h
+++ b/net/tipc/user_reg.h
@@ -42,9 +42,7 @@
 int tipc_reg_start(void);
 void tipc_reg_stop(void);
 
-typedef void (*tipc_mode_event)(void *usr_handle, int mode, u32 addr);
-
-int tipc_attach(unsigned int *userref, tipc_mode_event, void *usr_handle);
+int tipc_attach(unsigned int *userref);
 void tipc_detach(unsigned int userref);
 
 int tipc_reg_add_port(struct user_port *up_ptr);