tipc: Optimize message initialization routine

This patch eliminates the rarely-used "error code" argument
when initializing a TIPC message header, since the default
value of zero is the desired result in most cases; the few
exceptional cases now set the error code explicitly.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/tipc/bcast.c b/net/tipc/bcast.c
index e788017..0052c07 100644 (file)
--- a/net/tipc/bcast.c
+++ b/net/tipc/bcast.c
@@ -276,7 +276,7 @@ static void bclink_send_nack(struct node *n_ptr)
        if (buf) {
                msg = buf_msg(buf);
                msg_init(msg, BCAST_PROTOCOL, STATE_MSG,
-                        TIPC_OK, INT_H_SIZE, n_ptr->addr);
+                        INT_H_SIZE, n_ptr->addr);
                msg_set_mc_netid(msg, tipc_net_id);
                msg_set_bcast_ack(msg, mod(n_ptr->bclink.last_in));
                msg_set_bcgap_after(msg, n_ptr->bclink.gap_after);

diff --git a/net/tipc/cluster.c b/net/tipc/cluster.c
index 4bb3404..bc1db47 100644 (file)
--- a/net/tipc/cluster.c
+++ b/net/tipc/cluster.c
@@ -238,7 +238,7 @@ static struct sk_buff *tipc_cltr_prepare_routing_msg(u32 data_size, u32 dest)
        if (buf) {
                msg = buf_msg(buf);
                memset((char *)msg, 0, size);
-               msg_init(msg, ROUTE_DISTRIBUTOR, 0, TIPC_OK, INT_H_SIZE, dest);
+               msg_init(msg, ROUTE_DISTRIBUTOR, 0, INT_H_SIZE, dest);
        }
        return buf;
 }

diff --git a/net/tipc/discover.c b/net/tipc/discover.c
index ada213a..64c2028 100644 (file)
--- a/net/tipc/discover.c
+++ b/net/tipc/discover.c
@@ -120,8 +120,7 @@ static struct sk_buff *tipc_disc_init_msg(u32 type,
 
        if (buf) {
                msg = buf_msg(buf);
-               msg_init(msg, LINK_CONFIG, type, TIPC_OK, DSC_H_SIZE,
-                        dest_domain);
+               msg_init(msg, LINK_CONFIG, type, DSC_H_SIZE, dest_domain);
                msg_set_non_seq(msg);
                msg_set_req_links(msg, req_links);
                msg_set_dest_domain(msg, dest_domain);

diff --git a/net/tipc/link.c b/net/tipc/link.c
index 022cb2f..9784a8e 100644 (file)
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -468,7 +468,7 @@ struct link *tipc_link_create(struct bearer *b_ptr, const u32 peer,
 
        l_ptr->pmsg = (struct tipc_msg *)&l_ptr->proto_msg;
        msg = l_ptr->pmsg;
-       msg_init(msg, LINK_PROTOCOL, RESET_MSG, TIPC_OK, INT_H_SIZE, l_ptr->addr);
+       msg_init(msg, LINK_PROTOCOL, RESET_MSG, INT_H_SIZE, l_ptr->addr);
        msg_set_size(msg, sizeof(l_ptr->proto_msg));
        msg_set_session(msg, (tipc_random & 0xffff));
        msg_set_bearer_id(msg, b_ptr->identity);
@@ -1128,7 +1128,7 @@ int tipc_link_send_buf(struct link *l_ptr, struct sk_buff *buf)
 
                        if (bundler) {
                                msg_init(&bundler_hdr, MSG_BUNDLER, OPEN_MSG,
-                                        TIPC_OK, INT_H_SIZE, l_ptr->addr);
+                                        INT_H_SIZE, l_ptr->addr);
                                skb_copy_to_linear_data(bundler, &bundler_hdr,
                                                        INT_H_SIZE);
                                skb_trim(bundler, INT_H_SIZE);
@@ -1392,7 +1392,7 @@ again:
 
        msg_dbg(hdr, ">FRAGMENTING>");
        msg_init(&fragm_hdr, MSG_FRAGMENTER, FIRST_FRAGMENT,
-                TIPC_OK, INT_H_SIZE, msg_destnode(hdr));
+                INT_H_SIZE, msg_destnode(hdr));
        msg_set_link_selector(&fragm_hdr, sender->publ.ref);
        msg_set_size(&fragm_hdr, max_pkt);
        msg_set_fragm_no(&fragm_hdr, 1);
@@ -2426,7 +2426,7 @@ void tipc_link_changeover(struct link *l_ptr)
        }
 
        msg_init(&tunnel_hdr, CHANGEOVER_PROTOCOL,
-                ORIGINAL_MSG, TIPC_OK, INT_H_SIZE, l_ptr->addr);
+                ORIGINAL_MSG, INT_H_SIZE, l_ptr->addr);
        msg_set_bearer_id(&tunnel_hdr, l_ptr->peer_bearer_id);
        msg_set_msgcnt(&tunnel_hdr, msgcount);
        dbg("Link changeover requires %u tunnel messages\n", msgcount);
@@ -2481,7 +2481,7 @@ void tipc_link_send_duplicate(struct link *l_ptr, struct link *tunnel)
        struct tipc_msg tunnel_hdr;
 
        msg_init(&tunnel_hdr, CHANGEOVER_PROTOCOL,
-                DUPLICATE_MSG, TIPC_OK, INT_H_SIZE, l_ptr->addr);
+                DUPLICATE_MSG, INT_H_SIZE, l_ptr->addr);
        msg_set_msgcnt(&tunnel_hdr, l_ptr->out_queue_size);
        msg_set_bearer_id(&tunnel_hdr, l_ptr->peer_bearer_id);
        iter = l_ptr->first_out;
@@ -2687,7 +2687,7 @@ int tipc_link_send_long_buf(struct link *l_ptr, struct sk_buff *buf)
        /* Prepare reusable fragment header: */
 
        msg_init(&fragm_hdr, MSG_FRAGMENTER, FIRST_FRAGMENT,
-                TIPC_OK, INT_H_SIZE, destaddr);
+                INT_H_SIZE, destaddr);
        msg_set_link_selector(&fragm_hdr, msg_link_selector(inmsg));
        msg_set_long_msgno(&fragm_hdr, mod(l_ptr->long_msg_seq_no++));
        msg_set_fragm_no(&fragm_hdr, fragm_no);

diff --git a/net/tipc/msg.h b/net/tipc/msg.h
index ad487e8..3418ffa 100644 (file)
--- a/net/tipc/msg.h
+++ b/net/tipc/msg.h
@@ -696,7 +696,7 @@ static inline u32 msg_tot_importance(struct tipc_msg *m)
 
 
 static inline void msg_init(struct tipc_msg *m, u32 user, u32 type,
-                           u32 err, u32 hsize, u32 destnode)
+                           u32 hsize, u32 destnode)
 {
        memset(m, 0, hsize);
        msg_set_version(m);
@@ -705,7 +705,6 @@ static inline void msg_init(struct tipc_msg *m, u32 user, u32 type,
        msg_set_size(m, hsize);
        msg_set_prevnode(m, tipc_own_addr);
        msg_set_type(m, type);
-       msg_set_errcode(m, err);
        if (!msg_short(m)) {
                msg_set_orignode(m, tipc_own_addr);
                msg_set_destnode(m, destnode);

diff --git a/net/tipc/name_distr.c b/net/tipc/name_distr.c
index aecba5c..10a6989 100644 (file)
--- a/net/tipc/name_distr.c
+++ b/net/tipc/name_distr.c
@@ -103,8 +103,7 @@ static struct sk_buff *named_prepare_buf(u32 type, u32 size, u32 dest)
 
        if (buf != NULL) {
                msg = buf_msg(buf);
-               msg_init(msg, NAME_DISTRIBUTOR, type, TIPC_OK,
-                        LONG_H_SIZE, dest);
+               msg_init(msg, NAME_DISTRIBUTOR, type, LONG_H_SIZE, dest);
                msg_set_size(msg, LONG_H_SIZE + size);
        }
        return buf;

diff --git a/net/tipc/port.c b/net/tipc/port.c
index 4dfef9e..e3e9c12 100644 (file)
--- a/net/tipc/port.c
+++ b/net/tipc/port.c
@@ -244,8 +244,7 @@ u32 tipc_createport_raw(void *usr_handle,
        p_ptr->publ.max_pkt = MAX_PKT_DEFAULT;
        p_ptr->publ.ref = ref;
        msg = &p_ptr->publ.phdr;
-       msg_init(msg, TIPC_LOW_IMPORTANCE, TIPC_NAMED_MSG, TIPC_OK, LONG_H_SIZE,
-                0);
+       msg_init(msg, TIPC_LOW_IMPORTANCE, TIPC_NAMED_MSG, LONG_H_SIZE, 0);
        msg_set_orignode(msg, tipc_own_addr);
        msg_set_prevnode(msg, tipc_own_addr);
        msg_set_origport(msg, ref);
@@ -404,7 +403,8 @@ static struct sk_buff *port_build_proto_msg(u32 destport, u32 destnode,
        buf = buf_acquire(LONG_H_SIZE);
        if (buf) {
                msg = buf_msg(buf);
-               msg_init(msg, usr, type, err, LONG_H_SIZE, destnode);
+               msg_init(msg, usr, type, LONG_H_SIZE, destnode);
+               msg_set_errcode(msg, err);
                msg_set_destport(msg, destport);
                msg_set_origport(msg, origport);
                msg_set_destnode(msg, destnode);
@@ -448,7 +448,8 @@ int tipc_reject_msg(struct sk_buff *buf, u32 err)
                return data_sz;
        }
        rmsg = buf_msg(rbuf);
-       msg_init(rmsg, imp, msg_type(msg), err, hdr_sz, msg_orignode(msg));
+       msg_init(rmsg, imp, msg_type(msg), hdr_sz, msg_orignode(msg));
+       msg_set_errcode(rmsg, err);
        msg_set_destport(rmsg, msg_origport(msg));
        msg_set_prevnode(rmsg, tipc_own_addr);
        msg_set_origport(rmsg, msg_destport(msg));