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authorJon Paul Maloy <jon.maloy@ericsson.com>2014-07-16 20:41:02 -0400
committerDavid S. Miller <davem@davemloft.net>2014-07-16 21:38:19 -0700
commitc4116e10579c5bbbfc3cd2ad0324ee0d8691e531 (patch)
tree43f4306627b3f1c8e30e54ee2234603f7ddbcd28 /net/tipc
parent0abd8ff21f19adddc465538354e9baaca63df073 (diff)
downloadlinux-c4116e10579c5bbbfc3cd2ad0324ee0d8691e531.tar.bz2
tipc: remove unreferenced functions
We can now remove a number of functions which have become obsolete and unreferenced through this commit series. There are no functional changes in this commit. Signed-off-by: Jon Maloy <jon.maloy@ericsson.com> Reviewed-by: Erik Hugne <erik.hugne@ericsson.com> Reviewed-by: Ying Xue <ying.xue@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/tipc')
-rw-r--r--net/tipc/bcast.c26
-rw-r--r--net/tipc/bcast.h1
-rw-r--r--net/tipc/link.c247
-rw-r--r--net/tipc/link.h6
-rw-r--r--net/tipc/msg.c35
-rw-r--r--net/tipc/msg.h3
-rw-r--r--net/tipc/port.c112
-rw-r--r--net/tipc/port.h10
8 files changed, 0 insertions, 440 deletions
diff --git a/net/tipc/bcast.c b/net/tipc/bcast.c
index 4a1c9afc9d74..2f3256da6f88 100644
--- a/net/tipc/bcast.c
+++ b/net/tipc/bcast.c
@@ -389,32 +389,6 @@ static void bclink_peek_nack(struct tipc_msg *msg)
tipc_node_unlock(n_ptr);
}
-/*
- * tipc_bclink_xmit - broadcast a packet to all nodes in cluster
- */
-int tipc_bclink_xmit(struct sk_buff *buf)
-{
- int res;
-
- tipc_bclink_lock();
-
- if (!bclink->bcast_nodes.count) {
- res = msg_data_sz(buf_msg(buf));
- kfree_skb(buf);
- goto exit;
- }
-
- res = __tipc_link_xmit(bcl, buf);
- if (likely(res >= 0)) {
- bclink_set_last_sent();
- bcl->stats.queue_sz_counts++;
- bcl->stats.accu_queue_sz += bcl->out_queue_size;
- }
-exit:
- tipc_bclink_unlock();
- return res;
-}
-
/* tipc_bclink_xmit2 - broadcast buffer chain to all nodes in cluster
* and to identified node local sockets
* @buf: chain of buffers containing message
diff --git a/net/tipc/bcast.h b/net/tipc/bcast.h
index d90645f408aa..af6b6579f5c7 100644
--- a/net/tipc/bcast.h
+++ b/net/tipc/bcast.h
@@ -89,7 +89,6 @@ void tipc_bclink_add_node(u32 addr);
void tipc_bclink_remove_node(u32 addr);
struct tipc_node *tipc_bclink_retransmit_to(void);
void tipc_bclink_acknowledge(struct tipc_node *n_ptr, u32 acked);
-int tipc_bclink_xmit(struct sk_buff *buf);
void tipc_bclink_rcv(struct sk_buff *buf);
u32 tipc_bclink_get_last_sent(void);
u32 tipc_bclink_acks_missing(struct tipc_node *n_ptr);
diff --git a/net/tipc/link.c b/net/tipc/link.c
index d1255ba51216..28730ddf4b78 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -85,7 +85,6 @@ static void link_set_supervision_props(struct tipc_link *l_ptr, u32 tolerance);
static void link_state_event(struct tipc_link *l_ptr, u32 event);
static void link_reset_statistics(struct tipc_link *l_ptr);
static void link_print(struct tipc_link *l_ptr, const char *str);
-static int tipc_link_frag_xmit(struct tipc_link *l_ptr, struct sk_buff *buf);
static void tipc_link_sync_xmit(struct tipc_link *l);
static void tipc_link_sync_rcv(struct tipc_node *n, struct sk_buff *buf);
static int tipc_link_input(struct tipc_link *l, struct sk_buff *buf);
@@ -679,180 +678,6 @@ static void link_state_event(struct tipc_link *l_ptr, unsigned int event)
}
}
-/*
- * link_bundle_buf(): Append contents of a buffer to
- * the tail of an existing one.
- */
-static int link_bundle_buf(struct tipc_link *l_ptr, struct sk_buff *bundler,
- struct sk_buff *buf)
-{
- struct tipc_msg *bundler_msg = buf_msg(bundler);
- struct tipc_msg *msg = buf_msg(buf);
- u32 size = msg_size(msg);
- u32 bundle_size = msg_size(bundler_msg);
- u32 to_pos = align(bundle_size);
- u32 pad = to_pos - bundle_size;
-
- if (msg_user(bundler_msg) != MSG_BUNDLER)
- return 0;
- if (msg_type(bundler_msg) != OPEN_MSG)
- return 0;
- if (skb_tailroom(bundler) < (pad + size))
- return 0;
- if (l_ptr->max_pkt < (to_pos + size))
- return 0;
-
- skb_put(bundler, pad + size);
- skb_copy_to_linear_data_offset(bundler, to_pos, buf->data, size);
- msg_set_size(bundler_msg, to_pos + size);
- msg_set_msgcnt(bundler_msg, msg_msgcnt(bundler_msg) + 1);
- kfree_skb(buf);
- l_ptr->stats.sent_bundled++;
- return 1;
-}
-
-static void link_add_to_outqueue(struct tipc_link *l_ptr,
- struct sk_buff *buf,
- struct tipc_msg *msg)
-{
- u32 ack = mod(l_ptr->next_in_no - 1);
- u32 seqno = mod(l_ptr->next_out_no++);
-
- msg_set_word(msg, 2, ((ack << 16) | seqno));
- msg_set_bcast_ack(msg, l_ptr->owner->bclink.last_in);
- buf->next = NULL;
- if (l_ptr->first_out) {
- l_ptr->last_out->next = buf;
- l_ptr->last_out = buf;
- } else
- l_ptr->first_out = l_ptr->last_out = buf;
-
- l_ptr->out_queue_size++;
- if (l_ptr->out_queue_size > l_ptr->stats.max_queue_sz)
- l_ptr->stats.max_queue_sz = l_ptr->out_queue_size;
-}
-
-static void link_add_chain_to_outqueue(struct tipc_link *l_ptr,
- struct sk_buff *buf_chain,
- u32 long_msgno)
-{
- struct sk_buff *buf;
- struct tipc_msg *msg;
-
- if (!l_ptr->next_out)
- l_ptr->next_out = buf_chain;
- while (buf_chain) {
- buf = buf_chain;
- buf_chain = buf_chain->next;
-
- msg = buf_msg(buf);
- msg_set_long_msgno(msg, long_msgno);
- link_add_to_outqueue(l_ptr, buf, msg);
- }
-}
-
-/*
- * tipc_link_xmit() is the 'full path' for messages, called from
- * inside TIPC when the 'fast path' in tipc_send_xmit
- * has failed, and from link_send()
- */
-int __tipc_link_xmit(struct tipc_link *l_ptr, struct sk_buff *buf)
-{
- struct tipc_msg *msg = buf_msg(buf);
- u32 size = msg_size(msg);
- u32 dsz = msg_data_sz(msg);
- u32 queue_size = l_ptr->out_queue_size;
- u32 imp = tipc_msg_tot_importance(msg);
- u32 queue_limit = l_ptr->queue_limit[imp];
- u32 max_packet = l_ptr->max_pkt;
-
- /* Match msg importance against queue limits: */
- if (unlikely(queue_size >= queue_limit)) {
- if (imp <= TIPC_CRITICAL_IMPORTANCE) {
- link_schedule_port(l_ptr, msg_origport(msg), size);
- kfree_skb(buf);
- return -ELINKCONG;
- }
- kfree_skb(buf);
- if (imp > CONN_MANAGER) {
- pr_warn("%s<%s>, send queue full", link_rst_msg,
- l_ptr->name);
- tipc_link_reset(l_ptr);
- }
- return dsz;
- }
-
- /* Fragmentation needed ? */
- if (size > max_packet)
- return tipc_link_frag_xmit(l_ptr, buf);
-
- /* Packet can be queued or sent. */
- if (likely(!link_congested(l_ptr))) {
- link_add_to_outqueue(l_ptr, buf, msg);
-
- tipc_bearer_send(l_ptr->bearer_id, buf, &l_ptr->media_addr);
- l_ptr->unacked_window = 0;
- return dsz;
- }
- /* Congestion: can message be bundled ? */
- if ((msg_user(msg) != CHANGEOVER_PROTOCOL) &&
- (msg_user(msg) != MSG_FRAGMENTER)) {
-
- /* Try adding message to an existing bundle */
- if (l_ptr->next_out &&
- link_bundle_buf(l_ptr, l_ptr->last_out, buf))
- return dsz;
-
- /* Try creating a new bundle */
- if (size <= max_packet * 2 / 3) {
- struct sk_buff *bundler = tipc_buf_acquire(max_packet);
- struct tipc_msg bundler_hdr;
-
- if (bundler) {
- tipc_msg_init(&bundler_hdr, MSG_BUNDLER, OPEN_MSG,
- INT_H_SIZE, l_ptr->addr);
- skb_copy_to_linear_data(bundler, &bundler_hdr,
- INT_H_SIZE);
- skb_trim(bundler, INT_H_SIZE);
- link_bundle_buf(l_ptr, bundler, buf);
- buf = bundler;
- msg = buf_msg(buf);
- l_ptr->stats.sent_bundles++;
- }
- }
- }
- if (!l_ptr->next_out)
- l_ptr->next_out = buf;
- link_add_to_outqueue(l_ptr, buf, msg);
- return dsz;
-}
-
-/*
- * tipc_link_xmit(): same as __tipc_link_xmit(), but the link to use
- * has not been selected yet, and the the owner node is not locked
- * Called by TIPC internal users, e.g. the name distributor
- */
-int tipc_link_xmit(struct sk_buff *buf, u32 dest, u32 selector)
-{
- struct tipc_link *l_ptr;
- struct tipc_node *n_ptr;
- int res = -ELINKCONG;
-
- n_ptr = tipc_node_find(dest);
- if (n_ptr) {
- tipc_node_lock(n_ptr);
- l_ptr = n_ptr->active_links[selector & 1];
- if (l_ptr)
- res = __tipc_link_xmit(l_ptr, buf);
- else
- kfree_skb(buf);
- tipc_node_unlock(n_ptr);
- } else {
- kfree_skb(buf);
- }
- return res;
-}
-
/* tipc_link_cong: determine return value and how to treat the
* sent buffer during link congestion.
* - For plain, errorless user data messages we keep the buffer and
@@ -2123,78 +1948,6 @@ void tipc_link_bundle_rcv(struct sk_buff *buf)
kfree_skb(buf);
}
-/*
- * Fragmentation/defragmentation:
- */
-
-/*
- * tipc_link_frag_xmit: Entry for buffers needing fragmentation.
- * The buffer is complete, inclusive total message length.
- * Returns user data length.
- */
-static int tipc_link_frag_xmit(struct tipc_link *l_ptr, struct sk_buff *buf)
-{
- struct sk_buff *buf_chain = NULL;
- struct sk_buff *buf_chain_tail = (struct sk_buff *)&buf_chain;
- struct tipc_msg *inmsg = buf_msg(buf);
- struct tipc_msg fragm_hdr;
- u32 insize = msg_size(inmsg);
- u32 dsz = msg_data_sz(inmsg);
- unchar *crs = buf->data;
- u32 rest = insize;
- u32 pack_sz = l_ptr->max_pkt;
- u32 fragm_sz = pack_sz - INT_H_SIZE;
- u32 fragm_no = 0;
- u32 destaddr;
-
- if (msg_short(inmsg))
- destaddr = l_ptr->addr;
- else
- destaddr = msg_destnode(inmsg);
-
- /* Prepare reusable fragment header: */
- tipc_msg_init(&fragm_hdr, MSG_FRAGMENTER, FIRST_FRAGMENT,
- INT_H_SIZE, destaddr);
-
- /* Chop up message: */
- while (rest > 0) {
- struct sk_buff *fragm;
-
- if (rest <= fragm_sz) {
- fragm_sz = rest;
- msg_set_type(&fragm_hdr, LAST_FRAGMENT);
- }
- fragm = tipc_buf_acquire(fragm_sz + INT_H_SIZE);
- if (fragm == NULL) {
- kfree_skb(buf);
- kfree_skb_list(buf_chain);
- return -ENOMEM;
- }
- msg_set_size(&fragm_hdr, fragm_sz + INT_H_SIZE);
- fragm_no++;
- msg_set_fragm_no(&fragm_hdr, fragm_no);
- skb_copy_to_linear_data(fragm, &fragm_hdr, INT_H_SIZE);
- skb_copy_to_linear_data_offset(fragm, INT_H_SIZE, crs,
- fragm_sz);
- buf_chain_tail->next = fragm;
- buf_chain_tail = fragm;
-
- rest -= fragm_sz;
- crs += fragm_sz;
- msg_set_type(&fragm_hdr, FRAGMENT);
- }
- kfree_skb(buf);
-
- /* Append chain of fragments to send queue & send them */
- l_ptr->long_msg_seq_no++;
- link_add_chain_to_outqueue(l_ptr, buf_chain, l_ptr->long_msg_seq_no);
- l_ptr->stats.sent_fragments += fragm_no;
- l_ptr->stats.sent_fragmented++;
- tipc_link_push_queue(l_ptr);
-
- return dsz;
-}
-
static void link_set_supervision_props(struct tipc_link *l_ptr, u32 tolerance)
{
if ((tolerance < TIPC_MIN_LINK_TOL) || (tolerance > TIPC_MAX_LINK_TOL))
diff --git a/net/tipc/link.h b/net/tipc/link.h
index 04a59c58d385..f0ebeb677a8b 100644
--- a/net/tipc/link.h
+++ b/net/tipc/link.h
@@ -226,15 +226,9 @@ struct sk_buff *tipc_link_cmd_reset_stats(const void *req_tlv_area,
void tipc_link_reset_all(struct tipc_node *node);
void tipc_link_reset(struct tipc_link *l_ptr);
void tipc_link_reset_list(unsigned int bearer_id);
-int tipc_link_xmit(struct sk_buff *buf, u32 dest, u32 selector);
int tipc_link_xmit2(struct sk_buff *buf, u32 dest, u32 selector);
-int __tipc_link_xmit(struct tipc_link *l_ptr, struct sk_buff *buf);
int __tipc_link_xmit2(struct tipc_link *link, struct sk_buff *buf);
-int tipc_link_send_buf(struct tipc_link *l_ptr, struct sk_buff *buf);
u32 tipc_link_get_max_pkt(u32 dest, u32 selector);
-int tipc_link_iovec_xmit_fast(struct tipc_port *sender,
- struct iovec const *msg_sect,
- unsigned int len, u32 destnode);
void tipc_link_bundle_rcv(struct sk_buff *buf);
void tipc_link_proto_xmit(struct tipc_link *l_ptr, u32 msg_typ, int prob,
u32 gap, u32 tolerance, u32 priority, u32 acked_mtu);
diff --git a/net/tipc/msg.c b/net/tipc/msg.c
index 9682296f5e7c..e3102ea494d4 100644
--- a/net/tipc/msg.c
+++ b/net/tipc/msg.c
@@ -60,41 +60,6 @@ void tipc_msg_init(struct tipc_msg *m, u32 user, u32 type, u32 hsize,
msg_set_destnode(m, destnode);
}
-/**
- * tipc_msg_build - create message using specified header and data
- *
- * Note: Caller must not hold any locks in case copy_from_user() is interrupted!
- *
- * Returns message data size or errno
- */
-int tipc_msg_build(struct tipc_msg *hdr, struct iovec const *msg_sect,
- unsigned int len, int max_size, struct sk_buff **buf)
-{
- int dsz, sz, hsz;
- unsigned char *to;
-
- dsz = len;
- hsz = msg_hdr_sz(hdr);
- sz = hsz + dsz;
- msg_set_size(hdr, sz);
- if (unlikely(sz > max_size)) {
- *buf = NULL;
- return dsz;
- }
-
- *buf = tipc_buf_acquire(sz);
- if (!(*buf))
- return -ENOMEM;
- skb_copy_to_linear_data(*buf, hdr, hsz);
- to = (*buf)->data + hsz;
- if (len && memcpy_fromiovecend(to, msg_sect, 0, dsz)) {
- kfree_skb(*buf);
- *buf = NULL;
- return -EFAULT;
- }
- return dsz;
-}
-
/* tipc_buf_append(): Append a buffer to the fragment list of another buffer
* @*headbuf: in: NULL for first frag, otherwise value returned from prev call
* out: set when successful non-complete reassembly, otherwise NULL
diff --git a/net/tipc/msg.h b/net/tipc/msg.h
index a15d59601bf9..868fe22e3452 100644
--- a/net/tipc/msg.h
+++ b/net/tipc/msg.h
@@ -732,9 +732,6 @@ int tipc_msg_eval(struct sk_buff *buf, u32 *dnode);
void tipc_msg_init(struct tipc_msg *m, u32 user, u32 type, u32 hsize,
u32 destnode);
-int tipc_msg_build(struct tipc_msg *hdr, struct iovec const *msg_sect,
- unsigned int len, int max_size, struct sk_buff **buf);
-
int tipc_buf_append(struct sk_buff **headbuf, struct sk_buff **buf);
bool tipc_msg_bundle(struct sk_buff *bbuf, struct sk_buff *buf, u32 mtu);
diff --git a/net/tipc/port.c b/net/tipc/port.c
index 0d09dcb6da18..835dca1fd7ad 100644
--- a/net/tipc/port.c
+++ b/net/tipc/port.c
@@ -74,118 +74,6 @@ int tipc_port_peer_msg(struct tipc_port *p_ptr, struct tipc_msg *msg)
(!peernode && (orignode == tipc_own_addr));
}
-/**
- * tipc_port_mcast_xmit - send a multicast message to local and remote
- * destinations
- */
-int tipc_port_mcast_xmit(struct tipc_port *oport,
- struct tipc_name_seq const *seq,
- struct iovec const *msg_sect,
- unsigned int len)
-{
- struct tipc_msg *hdr;
- struct sk_buff *buf;
- struct sk_buff *ibuf = NULL;
- struct tipc_port_list dports = {0, NULL, };
- int ext_targets;
- int res;
-
- /* Create multicast message */
- hdr = &oport->phdr;
- msg_set_type(hdr, TIPC_MCAST_MSG);
- msg_set_lookup_scope(hdr, TIPC_CLUSTER_SCOPE);
- msg_set_destport(hdr, 0);
- msg_set_destnode(hdr, 0);
- msg_set_nametype(hdr, seq->type);
- msg_set_namelower(hdr, seq->lower);
- msg_set_nameupper(hdr, seq->upper);
- msg_set_hdr_sz(hdr, MCAST_H_SIZE);
- res = tipc_msg_build(hdr, msg_sect, len, MAX_MSG_SIZE, &buf);
- if (unlikely(!buf))
- return res;
-
- /* Figure out where to send multicast message */
- ext_targets = tipc_nametbl_mc_translate(seq->type, seq->lower, seq->upper,
- TIPC_NODE_SCOPE, &dports);
-
- /* Send message to destinations (duplicate it only if necessary) */
- if (ext_targets) {
- if (dports.count != 0) {
- ibuf = skb_copy(buf, GFP_ATOMIC);
- if (ibuf == NULL) {
- tipc_port_list_free(&dports);
- kfree_skb(buf);
- return -ENOMEM;
- }
- }
- res = tipc_bclink_xmit(buf);
- if ((res < 0) && (dports.count != 0))
- kfree_skb(ibuf);
- } else {
- ibuf = buf;
- }
-
- if (res >= 0) {
- if (ibuf)
- tipc_port_mcast_rcv(ibuf, &dports);
- } else {
- tipc_port_list_free(&dports);
- }
- return res;
-}
-
-/**
- * tipc_port_mcast_rcv - deliver multicast message to all destination ports
- *
- * If there is no port list, perform a lookup to create one
- */
-void tipc_port_mcast_rcv(struct sk_buff *buf, struct tipc_port_list *dp)
-{
- struct tipc_msg *msg;
- struct tipc_port_list dports = {0, NULL, };
- struct tipc_port_list *item = dp;
- int cnt = 0;
-
- msg = buf_msg(buf);
-
- /* Create destination port list, if one wasn't supplied */
- if (dp == NULL) {
- tipc_nametbl_mc_translate(msg_nametype(msg),
- msg_namelower(msg),
- msg_nameupper(msg),
- TIPC_CLUSTER_SCOPE,
- &dports);
- item = dp = &dports;
- }
-
- /* Deliver a copy of message to each destination port */
- if (dp->count != 0) {
- msg_set_destnode(msg, tipc_own_addr);
- if (dp->count == 1) {
- msg_set_destport(msg, dp->ports[0]);
- tipc_sk_rcv(buf);
- tipc_port_list_free(dp);
- return;
- }
- for (; cnt < dp->count; cnt++) {
- int index = cnt % PLSIZE;
- struct sk_buff *b = skb_clone(buf, GFP_ATOMIC);
-
- if (b == NULL) {
- pr_warn("Unable to deliver multicast message(s)\n");
- goto exit;
- }
- if ((index == 0) && (cnt != 0))
- item = item->next;
- msg_set_destport(buf_msg(b), item->ports[index]);
- tipc_sk_rcv(b);
- }
- }
-exit:
- kfree_skb(buf);
- tipc_port_list_free(dp);
-}
-
/* tipc_port_init - intiate TIPC port and lock it
*
* Returns obtained reference if initialization is successful, zero otherwise
diff --git a/net/tipc/port.h b/net/tipc/port.h
index 0e47052daa29..3f93454592b6 100644
--- a/net/tipc/port.h
+++ b/net/tipc/port.h
@@ -120,17 +120,7 @@ int __tipc_port_connect(u32 ref, struct tipc_port *p_ptr,
struct tipc_portid const *peer);
int tipc_port_peer_msg(struct tipc_port *p_ptr, struct tipc_msg *msg);
-/*
- * TIPC messaging routines
- */
-
-int tipc_port_mcast_xmit(struct tipc_port *port,
- struct tipc_name_seq const *seq,
- struct iovec const *msg,
- unsigned int len);
-
struct sk_buff *tipc_port_get_ports(void);
-void tipc_port_mcast_rcv(struct sk_buff *buf, struct tipc_port_list *dp);
void tipc_port_reinit(void);
/**