tipc: cleanup function namespace

Do some cleanups of TIPC based on make namespacecheck
  1. Don't export unused symbols
  2. Eliminate dead code
  3. Make functions and variables local
  4. Rename buf_acquire to tipc_buf_acquire since it is used in several files

Compile tested only.
This make break out of tree kernel modules that depend on TIPC routines.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: Jon Maloy <jon.maloy@ericsson.com>
Acked-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 23 insertions, 211 deletions

diff --git a/net/tipc/port.c b/net/tipc/port.c
index 5c4285b2d55..82092eaa153 100644
--- a/net/tipc/port.c
+++ b/net/tipc/port.c
@@ -293,34 +293,6 @@ int tipc_deleteport(u32 ref)
         return 0;
 }
 
-/**
- * tipc_get_port() - return port associated with 'ref'
- *
- * Note: Port is not locked.
- */
-
-struct tipc_port *tipc_get_port(const u32 ref)
-{
-        return (struct tipc_port *)tipc_ref_deref(ref);
-}
-
-/**
- * tipc_get_handle - return user handle associated to port 'ref'
- */
-
-void *tipc_get_handle(const u32 ref)
-{
-        struct port *p_ptr;
-        void * handle;
-
-        p_ptr = tipc_port_lock(ref);
-        if (!p_ptr)
-                return NULL;
-        handle = p_ptr->publ.usr_handle;
-        tipc_port_unlock(p_ptr);
-        return handle;
-}
-
 static int port_unreliable(struct port *p_ptr)
 {
         return msg_src_droppable(&p_ptr->publ.phdr);
@@ -392,7 +364,7 @@ static struct sk_buff *port_build_proto_msg(u32 destport, u32 destnode,
         struct sk_buff *buf;
         struct tipc_msg *msg;
 
-        buf = buf_acquire(LONG_H_SIZE);
+        buf = tipc_buf_acquire(LONG_H_SIZE);
         if (buf) {
                 msg = buf_msg(buf);
                 tipc_msg_init(msg, usr, type, LONG_H_SIZE, destnode);
@@ -433,7 +405,7 @@ int tipc_reject_msg(struct sk_buff *buf, u32 err)
                 hdr_sz = MCAST_H_SIZE;
         else
                 hdr_sz = LONG_H_SIZE;
-        rbuf = buf_acquire(data_sz + hdr_sz);
+        rbuf = tipc_buf_acquire(data_sz + hdr_sz);
         if (rbuf == NULL) {
                 buf_discard(buf);
                 return data_sz;
@@ -1242,50 +1214,13 @@ int tipc_shutdown(u32 ref)
         return tipc_disconnect(ref);
 }
 
-int tipc_isconnected(u32 ref, int *isconnected)
-{
-        struct port *p_ptr;
-
-        p_ptr = tipc_port_lock(ref);
-        if (!p_ptr)
-                return -EINVAL;
-        *isconnected = p_ptr->publ.connected;
-        tipc_port_unlock(p_ptr);
-        return 0;
-}
-
-int tipc_peer(u32 ref, struct tipc_portid *peer)
-{
-        struct port *p_ptr;
-        int res;
-
-        p_ptr = tipc_port_lock(ref);
-        if (!p_ptr)
-                return -EINVAL;
-        if (p_ptr->publ.connected) {
-                peer->ref = port_peerport(p_ptr);
-                peer->node = port_peernode(p_ptr);
-                res = 0;
-        } else
-                res = -ENOTCONN;
-        tipc_port_unlock(p_ptr);
-        return res;
-}
-
-int tipc_ref_valid(u32 ref)
-{
-        /* Works irrespective of type */
-        return !!tipc_ref_deref(ref);
-}
-
-
 /*
  *  tipc_port_recv_sections(): Concatenate and deliver sectioned
  *                        message for this node.
  */
 
-int tipc_port_recv_sections(struct port *sender, unsigned int num_sect,
-                       struct iovec const *msg_sect)
+static int tipc_port_recv_sections(struct port *sender, unsigned int num_sect,
+                                   struct iovec const *msg_sect)
 {
         struct sk_buff *buf;
         int res;
@@ -1336,65 +1271,16 @@ int tipc_send(u32 ref, unsigned int num_sect, struct iovec const *msg_sect)
 }
 
 /**
- * tipc_send_buf - send message buffer on connection
- */
-
-int tipc_send_buf(u32 ref, struct sk_buff *buf, unsigned int dsz)
-{
-        struct port *p_ptr;
-        struct tipc_msg *msg;
-        u32 destnode;
-        u32 hsz;
-        u32 sz;
-        u32 res;
-
-        p_ptr = tipc_port_deref(ref);
-        if (!p_ptr || !p_ptr->publ.connected)
-                return -EINVAL;
-
-        msg = &p_ptr->publ.phdr;
-        hsz = msg_hdr_sz(msg);
-        sz = hsz + dsz;
-        msg_set_size(msg, sz);
-        if (skb_cow(buf, hsz))
-                return -ENOMEM;
-
-        skb_push(buf, hsz);
-        skb_copy_to_linear_data(buf, msg, hsz);
-        destnode = msg_destnode(msg);
-        p_ptr->publ.congested = 1;
-        if (!tipc_port_congested(p_ptr)) {
-                if (likely(destnode != tipc_own_addr))
-                        res = tipc_send_buf_fast(buf, destnode);
-                else {
-                        tipc_port_recv_msg(buf);
-                        res = sz;
-                }
-                if (likely(res != -ELINKCONG)) {
-                        port_incr_out_seqno(p_ptr);
-                        p_ptr->sent++;
-                        p_ptr->publ.congested = 0;
-                        return res;
-                }
-        }
-        if (port_unreliable(p_ptr)) {
-                p_ptr->publ.congested = 0;
-                return dsz;
-        }
-        return -ELINKCONG;
-}
-
-/**
  * tipc_forward2name - forward message sections to port name
  */
 
-int tipc_forward2name(u32 ref,
-                      struct tipc_name const *name,
-                      u32 domain,
-                      u32 num_sect,
-                      struct iovec const *msg_sect,
-                      struct tipc_portid const *orig,
-                      unsigned int importance)
+static int tipc_forward2name(u32 ref,
+                             struct tipc_name const *name,
+                             u32 domain,
+                             u32 num_sect,
+                             struct iovec const *msg_sect,
+                             struct tipc_portid const *orig,
+                             unsigned int importance)
 {
         struct port *p_ptr;
         struct tipc_msg *msg;
@@ -1457,89 +1343,15 @@ int tipc_send2name(u32 ref,
 }
 
 /**
- * tipc_forward_buf2name - forward message buffer to port name
- */
-
-int tipc_forward_buf2name(u32 ref,
-                          struct tipc_name const *name,
-                          u32 domain,
-                          struct sk_buff *buf,
-                          unsigned int dsz,
-                          struct tipc_portid const *orig,
-                          unsigned int importance)
-{
-        struct port *p_ptr;
-        struct tipc_msg *msg;
-        u32 destnode = domain;
-        u32 destport;
-        int res;
-
-        p_ptr = (struct port *)tipc_ref_deref(ref);
-        if (!p_ptr || p_ptr->publ.connected)
-                return -EINVAL;
-
-        msg = &p_ptr->publ.phdr;
-        if (importance <= TIPC_CRITICAL_IMPORTANCE)
-                msg_set_importance(msg, importance);
-        msg_set_type(msg, TIPC_NAMED_MSG);
-        msg_set_orignode(msg, orig->node);
-        msg_set_origport(msg, orig->ref);
-        msg_set_nametype(msg, name->type);
-        msg_set_nameinst(msg, name->instance);
-        msg_set_lookup_scope(msg, tipc_addr_scope(domain));
-        msg_set_hdr_sz(msg, LONG_H_SIZE);
-        msg_set_size(msg, LONG_H_SIZE + dsz);
-        destport = tipc_nametbl_translate(name->type, name->instance, &destnode);
-        msg_set_destnode(msg, destnode);
-        msg_set_destport(msg, destport);
-        msg_dbg(msg, "forw2name ==> ");
-        if (skb_cow(buf, LONG_H_SIZE))
-                return -ENOMEM;
-        skb_push(buf, LONG_H_SIZE);
-        skb_copy_to_linear_data(buf, msg, LONG_H_SIZE);
-        msg_dbg(buf_msg(buf),"PREP:");
-        if (likely(destport)) {
-                p_ptr->sent++;
-                if (destnode == tipc_own_addr)
-                        return tipc_port_recv_msg(buf);
-                res = tipc_send_buf_fast(buf, destnode);
-                if (likely(res != -ELINKCONG))
-                        return res;
-                if (port_unreliable(p_ptr))
-                        return dsz;
-                return -ELINKCONG;
-        }
-        return tipc_reject_msg(buf, TIPC_ERR_NO_NAME);
-}
-
-/**
- * tipc_send_buf2name - send message buffer to port name
- */
-
-int tipc_send_buf2name(u32 ref,
-                       struct tipc_name const *dest,
-                       u32 domain,
-                       struct sk_buff *buf,
-                       unsigned int dsz)
-{
-        struct tipc_portid orig;
-
-        orig.ref = ref;
-        orig.node = tipc_own_addr;
-        return tipc_forward_buf2name(ref, dest, domain, buf, dsz, &orig,
-                                     TIPC_PORT_IMPORTANCE);
-}
-
-/**
  * tipc_forward2port - forward message sections to port identity
  */
 
-int tipc_forward2port(u32 ref,
-                      struct tipc_portid const *dest,
-                      unsigned int num_sect,
-                      struct iovec const *msg_sect,
-                      struct tipc_portid const *orig,
-                      unsigned int importance)
+static int tipc_forward2port(u32 ref,
+                             struct tipc_portid const *dest,
+                             unsigned int num_sect,
+                             struct iovec const *msg_sect,
+                             struct tipc_portid const *orig,
+                             unsigned int importance)
 {
         struct port *p_ptr;
         struct tipc_msg *msg;
@@ -1591,12 +1403,12 @@ int tipc_send2port(u32 ref,
 /**
  * tipc_forward_buf2port - forward message buffer to port identity
  */
-int tipc_forward_buf2port(u32 ref,
-                          struct tipc_portid const *dest,
-                          struct sk_buff *buf,
-                          unsigned int dsz,
-                          struct tipc_portid const *orig,
-                          unsigned int importance)
+static int tipc_forward_buf2port(u32 ref,
+                                 struct tipc_portid const *dest,
+                                 struct sk_buff *buf,
+                                 unsigned int dsz,
+                                 struct tipc_portid const *orig,
+                                 unsigned int importance)
 {
         struct port *p_ptr;
         struct tipc_msg *msg;