Merge branch 'master' [vanilla Linus master] into libata-dev.git/upstream

Two bits were appended to the end of the bitfield
list in struct scsi_device.  Resolve that conflict
by including both bits.

Conflicts:
	include/scsi/scsi_device.h

25 files changed, 471 insertions, 1160 deletions

diff --git a/net/tipc/Kconfig b/net/tipc/Kconfig
index 2c5954b8593..585460180ff 100644
--- a/net/tipc/Kconfig
+++ b/net/tipc/Kconfig
@@ -41,29 +41,4 @@ config TIPC_PORTS
 	  Setting this to a smaller value saves some memory,
 	  setting it to higher allows for more ports.
 
-config TIPC_LOG
-	int "Size of log buffer"
-	depends on TIPC_ADVANCED
-	range 0 32768
-	default "0"
-	help
-	  Size (in bytes) of TIPC's internal log buffer, which records the
-	  occurrence of significant events.  Can range from 0 to 32768 bytes;
-	  default is 0.
-
-	  There is no need to enable the log buffer unless the node will be
-	  managed remotely via TIPC.
-
-config TIPC_DEBUG
-	bool "Enable debugging support"
-	default n
-	help
-	  Saying Y here enables TIPC debugging capabilities used by developers.
-	  Most users do not need to bother; if unsure, just say N.
-
-	  Enabling debugging support causes TIPC to display data about its
-	  internal state when certain abnormal conditions occur. It also
-	  makes it easy for developers to capture additional information of
-	  interest using the dbg() or msg_dbg() macros.
-
 endif # TIPC
diff --git a/net/tipc/bcast.c b/net/tipc/bcast.c
index 2625f5ebe3e..e4e6d8cd47e 100644
--- a/net/tipc/bcast.c
+++ b/net/tipc/bcast.c
@@ -162,7 +162,7 @@ static void bclink_update_last_sent(struct tipc_node *node, u32 seqno)
 }
 
 
-/*
+/**
  * tipc_bclink_retransmit_to - get most recent node to request retransmission
  *
  * Called with bc_lock locked
@@ -270,7 +270,7 @@ exit:
 	spin_unlock_bh(&bc_lock);
 }
 
-/*
+/**
  * tipc_bclink_update_link_state - update broadcast link state
  *
  * tipc_net_lock and node lock set
@@ -330,7 +330,7 @@ void tipc_bclink_update_link_state(struct tipc_node *n_ptr, u32 last_sent)
 	}
 }
 
-/*
+/**
  * bclink_peek_nack - monitor retransmission requests sent by other nodes
  *
  * Delay any upcoming NACK by this node if another node has already
@@ -381,7 +381,7 @@ exit:
 	return res;
 }
 
-/*
+/**
  * bclink_accept_pkt - accept an incoming, in-sequence broadcast packet
  *
  * Called with both sending node's lock and bc_lock taken.
@@ -406,7 +406,7 @@ static void bclink_accept_pkt(struct tipc_node *node, u32 seqno)
 	}
 }
 
-/*
+/**
  * tipc_bclink_recv_pkt - receive a broadcast packet, and deliver upwards
  *
  * tipc_net_lock is read_locked, no other locks set
@@ -701,48 +701,43 @@ void tipc_bcbearer_sort(void)
 
 int tipc_bclink_stats(char *buf, const u32 buf_size)
 {
-	struct print_buf pb;
+	int ret;
+	struct tipc_stats *s;
 
 	if (!bcl)
 		return 0;
 
-	tipc_printbuf_init(&pb, buf, buf_size);
-
 	spin_lock_bh(&bc_lock);
 
-	tipc_printf(&pb, "Link <%s>\n"
-			 "  Window:%u packets\n",
-		    bcl->name, bcl->queue_limit[0]);
-	tipc_printf(&pb, "  RX packets:%u fragments:%u/%u bundles:%u/%u\n",
-		    bcl->stats.recv_info,
-		    bcl->stats.recv_fragments,
-		    bcl->stats.recv_fragmented,
-		    bcl->stats.recv_bundles,
-		    bcl->stats.recv_bundled);
-	tipc_printf(&pb, "  TX packets:%u fragments:%u/%u bundles:%u/%u\n",
-		    bcl->stats.sent_info,
-		    bcl->stats.sent_fragments,
-		    bcl->stats.sent_fragmented,
-		    bcl->stats.sent_bundles,
-		    bcl->stats.sent_bundled);
-	tipc_printf(&pb, "  RX naks:%u defs:%u dups:%u\n",
-		    bcl->stats.recv_nacks,
-		    bcl->stats.deferred_recv,
-		    bcl->stats.duplicates);
-	tipc_printf(&pb, "  TX naks:%u acks:%u dups:%u\n",
-		    bcl->stats.sent_nacks,
-		    bcl->stats.sent_acks,
-		    bcl->stats.retransmitted);
-	tipc_printf(&pb, "  Congestion bearer:%u link:%u  Send queue max:%u avg:%u\n",
-		    bcl->stats.bearer_congs,
-		    bcl->stats.link_congs,
-		    bcl->stats.max_queue_sz,
-		    bcl->stats.queue_sz_counts
-		    ? (bcl->stats.accu_queue_sz / bcl->stats.queue_sz_counts)
-		    : 0);
+	s = &bcl->stats;
+
+	ret = tipc_snprintf(buf, buf_size, "Link <%s>\n"
+			    "  Window:%u packets\n",
+			    bcl->name, bcl->queue_limit[0]);
+	ret += tipc_snprintf(buf + ret, buf_size - ret,
+			     "  RX packets:%u fragments:%u/%u bundles:%u/%u\n",
+			     s->recv_info, s->recv_fragments,
+			     s->recv_fragmented, s->recv_bundles,
+			     s->recv_bundled);
+	ret += tipc_snprintf(buf + ret, buf_size - ret,
+			     "  TX packets:%u fragments:%u/%u bundles:%u/%u\n",
+			     s->sent_info, s->sent_fragments,
+			     s->sent_fragmented, s->sent_bundles,
+			     s->sent_bundled);
+	ret += tipc_snprintf(buf + ret, buf_size - ret,
+			     "  RX naks:%u defs:%u dups:%u\n",
+			     s->recv_nacks, s->deferred_recv, s->duplicates);
+	ret += tipc_snprintf(buf + ret, buf_size - ret,
+			     "  TX naks:%u acks:%u dups:%u\n",
+			     s->sent_nacks, s->sent_acks, s->retransmitted);
+	ret += tipc_snprintf(buf + ret, buf_size - ret,
+			     "  Congestion bearer:%u link:%u  Send queue max:%u avg:%u\n",
+			     s->bearer_congs, s->link_congs, s->max_queue_sz,
+			     s->queue_sz_counts ?
+			     (s->accu_queue_sz / s->queue_sz_counts) : 0);
 
 	spin_unlock_bh(&bc_lock);
-	return tipc_printbuf_validate(&pb);
+	return ret;
 }
 
 int tipc_bclink_reset_stats(void)
@@ -880,7 +875,7 @@ void tipc_port_list_add(struct tipc_port_list *pl_ptr, u32 port)
 		if (!item->next) {
 			item->next = kmalloc(sizeof(*item), GFP_ATOMIC);
 			if (!item->next) {
-				warn("Incomplete multicast delivery, no memory\n");
+				pr_warn("Incomplete multicast delivery, no memory\n");
 				return;
 			}
 			item->next->next = NULL;
diff --git a/net/tipc/bearer.c b/net/tipc/bearer.c
index a297e3a2e3e..09e71241265 100644
--- a/net/tipc/bearer.c
+++ b/net/tipc/bearer.c
@@ -123,28 +123,30 @@ int tipc_register_media(struct tipc_media *m_ptr)
 exit:
 	write_unlock_bh(&tipc_net_lock);
 	if (res)
-		warn("Media <%s> registration error\n", m_ptr->name);
+		pr_warn("Media <%s> registration error\n", m_ptr->name);
 	return res;
 }
 
 /**
  * tipc_media_addr_printf - record media address in print buffer
  */
-void tipc_media_addr_printf(struct print_buf *pb, struct tipc_media_addr *a)
+void tipc_media_addr_printf(char *buf, int len, struct tipc_media_addr *a)
 {
 	char addr_str[MAX_ADDR_STR];
 	struct tipc_media *m_ptr;
+	int ret;
 
 	m_ptr = media_find_id(a->media_id);
 
 	if (m_ptr && !m_ptr->addr2str(a, addr_str, sizeof(addr_str)))
-		tipc_printf(pb, "%s(%s)", m_ptr->name, addr_str);
+		ret = tipc_snprintf(buf, len, "%s(%s)", m_ptr->name, addr_str);
 	else {
 		u32 i;
 
-		tipc_printf(pb, "UNKNOWN(%u)", a->media_id);
+		ret = tipc_snprintf(buf, len, "UNKNOWN(%u)", a->media_id);
 		for (i = 0; i < sizeof(a->value); i++)
-			tipc_printf(pb, "-%02x", a->value[i]);
+			ret += tipc_snprintf(buf - ret, len + ret,
+					    "-%02x", a->value[i]);
 	}
 }
 
@@ -172,8 +174,8 @@ struct sk_buff *tipc_media_get_names(void)
 
 /**
  * bearer_name_validate - validate & (optionally) deconstruct bearer name
- * @name - ptr to bearer name string
- * @name_parts - ptr to area for bearer name components (or NULL if not needed)
+ * @name: ptr to bearer name string
+ * @name_parts: ptr to area for bearer name components (or NULL if not needed)
  *
  * Returns 1 if bearer name is valid, otherwise 0.
  */
@@ -418,12 +420,12 @@ int tipc_enable_bearer(const char *name, u32 disc_domain, u32 priority)
 	int res = -EINVAL;
 
 	if (!tipc_own_addr) {
-		warn("Bearer <%s> rejected, not supported in standalone mode\n",
-		     name);
+		pr_warn("Bearer <%s> rejected, not supported in standalone mode\n",
+			name);
 		return -ENOPROTOOPT;
 	}
 	if (!bearer_name_validate(name, &b_names)) {
-		warn("Bearer <%s> rejected, illegal name\n", name);
+		pr_warn("Bearer <%s> rejected, illegal name\n", name);
 		return -EINVAL;
 	}
 	if (tipc_addr_domain_valid(disc_domain) &&
@@ -435,12 +437,13 @@ int tipc_enable_bearer(const char *name, u32 disc_domain, u32 priority)
 			res = 0;   /* accept specified node in own cluster */
 	}
 	if (res) {
-		warn("Bearer <%s> rejected, illegal discovery domain\n", name);
+		pr_warn("Bearer <%s> rejected, illegal discovery domain\n",
+			name);
 		return -EINVAL;
 	}
 	if ((priority > TIPC_MAX_LINK_PRI) &&
 	    (priority != TIPC_MEDIA_LINK_PRI)) {
-		warn("Bearer <%s> rejected, illegal priority\n", name);
+		pr_warn("Bearer <%s> rejected, illegal priority\n", name);
 		return -EINVAL;
 	}
 
@@ -448,8 +451,8 @@ int tipc_enable_bearer(const char *name, u32 disc_domain, u32 priority)
 
 	m_ptr = tipc_media_find(b_names.media_name);
 	if (!m_ptr) {
-		warn("Bearer <%s> rejected, media <%s> not registered\n", name,
-		     b_names.media_name);
+		pr_warn("Bearer <%s> rejected, media <%s> not registered\n",
+			name, b_names.media_name);
 		goto exit;
 	}
 
@@ -465,24 +468,25 @@ restart:
 			continue;
 		}
 		if (!strcmp(name, tipc_bearers[i].name)) {
-			warn("Bearer <%s> rejected, already enabled\n", name);
+			pr_warn("Bearer <%s> rejected, already enabled\n",
+				name);
 			goto exit;
 		}
 		if ((tipc_bearers[i].priority == priority) &&
 		    (++with_this_prio > 2)) {
 			if (priority-- == 0) {
-				warn("Bearer <%s> rejected, duplicate priority\n",
-				     name);
+				pr_warn("Bearer <%s> rejected, duplicate priority\n",
+					name);
 				goto exit;
 			}
-			warn("Bearer <%s> priority adjustment required %u->%u\n",
-			     name, priority + 1, priority);
+			pr_warn("Bearer <%s> priority adjustment required %u->%u\n",
+				name, priority + 1, priority);
 			goto restart;
 		}
 	}
 	if (bearer_id >= MAX_BEARERS) {
-		warn("Bearer <%s> rejected, bearer limit reached (%u)\n",
-		     name, MAX_BEARERS);
+		pr_warn("Bearer <%s> rejected, bearer limit reached (%u)\n",
+			name, MAX_BEARERS);
 		goto exit;
 	}
 
@@ -490,7 +494,8 @@ restart:
 	strcpy(b_ptr->name, name);
 	res = m_ptr->enable_bearer(b_ptr);
 	if (res) {
-		warn("Bearer <%s> rejected, enable failure (%d)\n", name, -res);
+		pr_warn("Bearer <%s> rejected, enable failure (%d)\n",
+			name, -res);
 		goto exit;
 	}
 
@@ -508,20 +513,20 @@ restart:
 	res = tipc_disc_create(b_ptr, &m_ptr->bcast_addr, disc_domain);
 	if (res) {
 		bearer_disable(b_ptr);
-		warn("Bearer <%s> rejected, discovery object creation failed\n",
-		     name);
+		pr_warn("Bearer <%s> rejected, discovery object creation failed\n",
+			name);
 		goto exit;
 	}
-	info("Enabled bearer <%s>, discovery domain %s, priority %u\n",
-	     name, tipc_addr_string_fill(addr_string, disc_domain), priority);
+	pr_info("Enabled bearer <%s>, discovery domain %s, priority %u\n",
+		name,
+		tipc_addr_string_fill(addr_string, disc_domain), priority);
 exit:
 	write_unlock_bh(&tipc_net_lock);
 	return res;
 }
 
 /**
- * tipc_block_bearer(): Block the bearer with the given name,
- *                      and reset all its links
+ * tipc_block_bearer - Block the bearer with the given name, and reset all its links
  */
 int tipc_block_bearer(const char *name)
 {
@@ -532,12 +537,12 @@ int tipc_block_bearer(const char *name)
 	read_lock_bh(&tipc_net_lock);
 	b_ptr = tipc_bearer_find(name);
 	if (!b_ptr) {
-		warn("Attempt to block unknown bearer <%s>\n", name);
+		pr_warn("Attempt to block unknown bearer <%s>\n", name);
 		read_unlock_bh(&tipc_net_lock);
 		return -EINVAL;
 	}
 
-	info("Blocking bearer <%s>\n", name);
+	pr_info("Blocking bearer <%s>\n", name);
 	spin_lock_bh(&b_ptr->lock);
 	b_ptr->blocked = 1;
 	list_splice_init(&b_ptr->cong_links, &b_ptr->links);
@@ -563,7 +568,7 @@ static void bearer_disable(struct tipc_bearer *b_ptr)
 	struct tipc_link *l_ptr;
 	struct tipc_link *temp_l_ptr;
 
-	info("Disabling bearer <%s>\n", b_ptr->name);
+	pr_info("Disabling bearer <%s>\n", b_ptr->name);
 	spin_lock_bh(&b_ptr->lock);
 	b_ptr->blocked = 1;
 	b_ptr->media->disable_bearer(b_ptr);
@@ -585,7 +590,7 @@ int tipc_disable_bearer(const char *name)
 	write_lock_bh(&tipc_net_lock);
 	b_ptr = tipc_bearer_find(name);
 	if (b_ptr == NULL) {
-		warn("Attempt to disable unknown bearer <%s>\n", name);
+		pr_warn("Attempt to disable unknown bearer <%s>\n", name);
 		res = -EINVAL;
 	} else {
 		bearer_disable(b_ptr);
diff --git a/net/tipc/bearer.h b/net/tipc/bearer.h
index e3b2be37fb3..dd4c2abf08e 100644
--- a/net/tipc/bearer.h
+++ b/net/tipc/bearer.h
@@ -57,7 +57,7 @@
  */
 #define TIPC_MEDIA_TYPE_ETH	1
 
-/*
+/**
  * struct tipc_media_addr - destination address used by TIPC bearers
  * @value: address info (format defined by media)
  * @media_id: TIPC media type identifier
@@ -179,7 +179,7 @@ void tipc_eth_media_stop(void);
 
 int tipc_media_set_priority(const char *name, u32 new_value);
 int tipc_media_set_window(const char *name, u32 new_value);
-void tipc_media_addr_printf(struct print_buf *pb, struct tipc_media_addr *a);
+void tipc_media_addr_printf(char *buf, int len, struct tipc_media_addr *a);
 struct sk_buff *tipc_media_get_names(void);
 
 struct sk_buff *tipc_bearer_get_names(void);
diff --git a/net/tipc/config.c b/net/tipc/config.c
index c5712a34381..a056a3852f7 100644
--- a/net/tipc/config.c
+++ b/net/tipc/config.c
@@ -39,6 +39,8 @@
 #include "name_table.h"
 #include "config.h"
 
+#define REPLY_TRUNCATED "<truncated>\n"
+
 static u32 config_port_ref;
 
 static DEFINE_SPINLOCK(config_lock);
@@ -104,13 +106,12 @@ struct sk_buff *tipc_cfg_reply_string_type(u16 tlv_type, char *string)
 	return buf;
 }
 
-#define MAX_STATS_INFO 2000
-
 static struct sk_buff *tipc_show_stats(void)
 {
 	struct sk_buff *buf;
 	struct tlv_desc *rep_tlv;
-	struct print_buf pb;
+	char *pb;
+	int pb_len;
 	int str_len;
 	u32 value;
 
@@ -121,17 +122,16 @@ static struct sk_buff *tipc_show_stats(void)
 	if (value != 0)
 		return tipc_cfg_reply_error_string("unsupported argument");
 
-	buf = tipc_cfg_reply_alloc(TLV_SPACE(MAX_STATS_INFO));
+	buf = tipc_cfg_reply_alloc(TLV_SPACE(ULTRA_STRING_MAX_LEN));
 	if (buf == NULL)
 		return NULL;
 
 	rep_tlv = (struct tlv_desc *)buf->data;
-	tipc_printbuf_init(&pb, (char *)TLV_DATA(rep_tlv), MAX_STATS_INFO);
-
-	tipc_printf(&pb, "TIPC version " TIPC_MOD_VER "\n");
+	pb = TLV_DATA(rep_tlv);
+	pb_len = ULTRA_STRING_MAX_LEN;
 
-	/* Use additional tipc_printf()'s to return more info ... */
-	str_len = tipc_printbuf_validate(&pb);
+	str_len = tipc_snprintf(pb, pb_len, "TIPC version " TIPC_MOD_VER "\n");
+	str_len += 1;	/* for "\0" */
 	skb_put(buf, TLV_SPACE(str_len));
 	TLV_SET(rep_tlv, TIPC_TLV_ULTRA_STRING, NULL, str_len);
 
@@ -334,12 +334,6 @@ struct sk_buff *tipc_cfg_do_cmd(u32 orig_node, u16 cmd, const void *request_area
 	case TIPC_CMD_SHOW_PORTS:
 		rep_tlv_buf = tipc_port_get_ports();
 		break;
-	case TIPC_CMD_SET_LOG_SIZE:
-		rep_tlv_buf = tipc_log_resize_cmd(req_tlv_area, req_tlv_space);
-		break;
-	case TIPC_CMD_DUMP_LOG:
-		rep_tlv_buf = tipc_log_dump();
-		break;
 	case TIPC_CMD_SHOW_STATS:
 		rep_tlv_buf = tipc_show_stats();
 		break;
@@ -399,6 +393,8 @@ struct sk_buff *tipc_cfg_do_cmd(u32 orig_node, u16 cmd, const void *request_area
 	case TIPC_CMD_GET_MAX_CLUSTERS:
 	case TIPC_CMD_SET_MAX_NODES:
 	case TIPC_CMD_GET_MAX_NODES:
+	case TIPC_CMD_SET_LOG_SIZE:
+	case TIPC_CMD_DUMP_LOG:
 		rep_tlv_buf = tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED
 							  " (obsolete command)");
 		break;
@@ -408,6 +404,15 @@ struct sk_buff *tipc_cfg_do_cmd(u32 orig_node, u16 cmd, const void *request_area
 		break;
 	}
 
+	WARN_ON(rep_tlv_buf->len > TLV_SPACE(ULTRA_STRING_MAX_LEN));
+
+	/* Append an error message if we cannot return all requested data */
+	if (rep_tlv_buf->len == TLV_SPACE(ULTRA_STRING_MAX_LEN)) {
+		if (*(rep_tlv_buf->data + ULTRA_STRING_MAX_LEN) != '\0')
+			sprintf(rep_tlv_buf->data + rep_tlv_buf->len -
+				sizeof(REPLY_TRUNCATED) - 1, REPLY_TRUNCATED);
+	}
+
 	/* Return reply buffer */
 exit:
 	spin_unlock_bh(&config_lock);
@@ -432,7 +437,7 @@ static void cfg_named_msg_event(void *userdata,
 	if ((size < sizeof(*req_hdr)) ||
 	    (size != TCM_ALIGN(ntohl(req_hdr->tcm_len))) ||
 	    (ntohs(req_hdr->tcm_flags) != TCM_F_REQUEST)) {
-		warn("Invalid configuration message discarded\n");
+		pr_warn("Invalid configuration message discarded\n");
 		return;
 	}
 
@@ -478,7 +483,7 @@ int tipc_cfg_init(void)
 	return 0;
 
 failed:
-	err("Unable to create configuration service\n");
+	pr_err("Unable to create configuration service\n");
 	return res;
 }
 
@@ -494,7 +499,7 @@ void tipc_cfg_reinit(void)
 	seq.lower = seq.upper = tipc_own_addr;
 	res = tipc_publish(config_port_ref, TIPC_ZONE_SCOPE, &seq);
 	if (res)
-		err("Unable to reinitialize configuration service\n");
+		pr_err("Unable to reinitialize configuration service\n");
 }
 
 void tipc_cfg_stop(void)
diff --git a/net/tipc/core.c b/net/tipc/core.c
index f7b95239ebd..6586eac6a50 100644
--- a/net/tipc/core.c
+++ b/net/tipc/core.c
@@ -34,22 +34,18 @@
  * POSSIBILITY OF SUCH DAMAGE.
  */
 
-#include <linux/module.h>
-
 #include "core.h"
 #include "ref.h"
 #include "name_table.h"
 #include "subscr.h"
 #include "config.h"
 
+#include <linux/module.h>
 
 #ifndef CONFIG_TIPC_PORTS
 #define CONFIG_TIPC_PORTS 8191
 #endif
 
-#ifndef CONFIG_TIPC_LOG
-#define CONFIG_TIPC_LOG 0
-#endif
 
 /* global variables used by multiple sub-systems within TIPC */
 int tipc_random;
@@ -125,7 +121,6 @@ static void tipc_core_stop(void)
 	tipc_nametbl_stop();
 	tipc_ref_table_stop();
 	tipc_socket_stop();
-	tipc_log_resize(0);
 }
 
 /**
@@ -161,10 +156,7 @@ static int __init tipc_init(void)
 {
 	int res;
 
-	if (tipc_log_resize(CONFIG_TIPC_LOG) != 0)
-		warn("Unable to create log buffer\n");
-
-	info("Activated (version " TIPC_MOD_VER ")\n");
+	pr_info("Activated (version " TIPC_MOD_VER ")\n");
 
 	tipc_own_addr = 0;
 	tipc_remote_management = 1;
@@ -175,9 +167,9 @@ static int __init tipc_init(void)
 
 	res = tipc_core_start();
 	if (res)
-		err("Unable to start in single node mode\n");
+		pr_err("Unable to start in single node mode\n");
 	else
-		info("Started in single node mode\n");
+		pr_info("Started in single node mode\n");
 	return res;
 }
 
@@ -185,7 +177,7 @@ static void __exit tipc_exit(void)
 {
 	tipc_core_stop_net();
 	tipc_core_stop();
-	info("Deactivated\n");
+	pr_info("Deactivated\n");
 }
 
 module_init(tipc_init);
diff --git a/net/tipc/core.h b/net/tipc/core.h
index 2a9bb99537b..fd42e106c18 100644
--- a/net/tipc/core.h
+++ b/net/tipc/core.h
@@ -37,6 +37,8 @@
 #ifndef _TIPC_CORE_H
 #define _TIPC_CORE_H
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/tipc.h>
 #include <linux/tipc_config.h>
 #include <linux/types.h>
@@ -58,68 +60,11 @@
 
 #define TIPC_MOD_VER "2.0.0"
 
-struct tipc_msg;	/* msg.h */
-struct print_buf;	/* log.h */
-
-/*
- * TIPC system monitoring code
- */
-
-/*
- * TIPC's print buffer subsystem supports the following print buffers:
- *
- * TIPC_NULL : null buffer (i.e. print nowhere)
- * TIPC_CONS : system console
- * TIPC_LOG  : TIPC log buffer
- * &buf	     : user-defined buffer (struct print_buf *)
- *
- * Note: TIPC_LOG is configured to echo its output to the system console;
- *       user-defined buffers can be configured to do the same thing.
- */
-extern struct print_buf *const TIPC_NULL;
-extern struct print_buf *const TIPC_CONS;
-extern struct print_buf *const TIPC_LOG;
-
-void tipc_printf(struct print_buf *, const char *fmt, ...);
-
-/*
- * TIPC_OUTPUT is the destination print buffer for system messages.
- */
-#ifndef TIPC_OUTPUT
-#define TIPC_OUTPUT TIPC_LOG
-#endif
+#define ULTRA_STRING_MAX_LEN 32768
 
-#define err(fmt, arg...)  tipc_printf(TIPC_OUTPUT, \
-				      KERN_ERR "TIPC: " fmt, ## arg)
-#define warn(fmt, arg...) tipc_printf(TIPC_OUTPUT, \
-				      KERN_WARNING "TIPC: " fmt, ## arg)
-#define info(fmt, arg...) tipc_printf(TIPC_OUTPUT, \
-				      KERN_NOTICE "TIPC: " fmt, ## arg)
-
-#ifdef CONFIG_TIPC_DEBUG
-
-/*
- * DBG_OUTPUT is the destination print buffer for debug messages.
- */
-#ifndef DBG_OUTPUT
-#define DBG_OUTPUT TIPC_LOG
-#endif
-
-#define dbg(fmt, arg...)  tipc_printf(DBG_OUTPUT, KERN_DEBUG fmt, ## arg);
-
-#define msg_dbg(msg, txt) tipc_msg_dbg(DBG_OUTPUT, msg, txt);
-
-void tipc_msg_dbg(struct print_buf *, struct tipc_msg *, const char *);
-
-#else
-
-#define dbg(fmt, arg...)	do {} while (0)
-#define msg_dbg(msg, txt)	do {} while (0)
-
-#define tipc_msg_dbg(buf, msg, txt) do {} while (0)
-
-#endif
+struct tipc_msg;	/* msg.h */
 
+int tipc_snprintf(char *buf, int len, const char *fmt, ...);
 
 /*
  * TIPC-specific error codes
diff --git a/net/tipc/discover.c b/net/tipc/discover.c
index ae054cfe179..50eaa403eb6 100644
--- a/net/tipc/discover.c
+++ b/net/tipc/discover.c
@@ -100,14 +100,12 @@ static void disc_dupl_alert(struct tipc_bearer *b_ptr, u32 node_addr,
 {
 	char node_addr_str[16];
 	char media_addr_str[64];
-	struct print_buf pb;
 
 	tipc_addr_string_fill(node_addr_str, node_addr);
-	tipc_printbuf_init(&pb, media_addr_str, sizeof(media_addr_str));
-	tipc_media_addr_printf(&pb, media_addr);
-	tipc_printbuf_validate(&pb);
-	warn("Duplicate %s using %s seen on <%s>\n",
-	     node_addr_str, media_addr_str, b_ptr->name);
+	tipc_media_addr_printf(media_addr_str, sizeof(media_addr_str),
+			       media_addr);
+	pr_warn("Duplicate %s using %s seen on <%s>\n", node_addr_str,
+		media_addr_str, b_ptr->name);
 }
 
 /**
diff --git a/net/tipc/handler.c b/net/tipc/handler.c
index 9c6f22ff1c6..7a52d3922f3 100644
--- a/net/tipc/handler.c
+++ b/net/tipc/handler.c
@@ -57,14 +57,14 @@ unsigned int tipc_k_signal(Handler routine, unsigned long argument)
 	struct queue_item *item;
 
 	if (!handler_enabled) {
-		err("Signal request ignored by handler\n");
+		pr_err("Signal request ignored by handler\n");
 		return -ENOPROTOOPT;
 	}
 
 	spin_lock_bh(&qitem_lock);
 	item = kmem_cache_alloc(tipc_queue_item_cache, GFP_ATOMIC);
 	if (!item) {
-		err("Signal queue out of memory\n");
+		pr_err("Signal queue out of memory\n");
 		spin_unlock_bh(&qitem_lock);
 		return -ENOMEM;
 	}
diff --git a/net/tipc/link.c b/net/tipc/link.c
index 7a614f43549..1c1e6151875 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -41,6 +41,12 @@
 #include "discover.h"
 #include "config.h"
 
+/*
+ * Error message prefixes
+ */
+static const char *link_co_err = "Link changeover error, ";
+static const char *link_rst_msg = "Resetting link ";
+static const char *link_unk_evt = "Unknown link event ";
 
 /*
  * Out-of-range value for link session numbers
@@ -153,8 +159,8 @@ int tipc_link_is_active(struct tipc_link *l_ptr)
 
 /**
  * link_name_validate - validate & (optionally) deconstruct tipc_link name
- * @name - ptr to link name string
- * @name_parts - ptr to area for link name components (or NULL if not needed)
+ * @name: ptr to link name string
+ * @name_parts: ptr to area for link name components (or NULL if not needed)
  *
  * Returns 1 if link name is valid, otherwise 0.
  */
@@ -300,20 +306,20 @@ struct tipc_link *tipc_link_create(struct tipc_node *n_ptr,
 
 	if (n_ptr->link_cnt >= 2) {
 		tipc_addr_string_fill(addr_string, n_ptr->addr);
-		err("Attempt to establish third link to %s\n", addr_string);
+		pr_err("Attempt to establish third link to %s\n", addr_string);
 		return NULL;
 	}
 
 	if (n_ptr->links[b_ptr->identity]) {
 		tipc_addr_string_fill(addr_string, n_ptr->addr);
-		err("Attempt to establish second link on <%s> to %s\n",
-		    b_ptr->name, addr_string);
+		pr_err("Attempt to establish second link on <%s> to %s\n",
+		       b_ptr->name, addr_string);
 		return NULL;
 	}
 
 	l_ptr = kzalloc(sizeof(*l_ptr), GFP_ATOMIC);
 	if (!l_ptr) {
-		warn("Link creation failed, no memory\n");
+		pr_warn("Link creation failed, no memory\n");
 		return NULL;
 	}
 
@@ -371,7 +377,7 @@ struct tipc_link *tipc_link_create(struct tipc_node *n_ptr,
 void tipc_link_delete(struct tipc_link *l_ptr)
 {
 	if (!l_ptr) {
-		err("Attempt to delete non-existent link\n");
+		pr_err("Attempt to delete non-existent link\n");
 		return;
 	}
 
@@ -632,8 +638,8 @@ static void link_state_event(struct tipc_link *l_ptr, unsigned int event)
 			link_set_timer(l_ptr, cont_intv / 4);
 			break;
 		case RESET_MSG:
-			info("Resetting link <%s>, requested by peer\n",
-			     l_ptr->name);
+			pr_info("%s<%s>, requested by peer\n", link_rst_msg,
+				l_ptr->name);
 			tipc_link_reset(l_ptr);
 			l_ptr->state = RESET_RESET;
 			l_ptr->fsm_msg_cnt = 0;
@@ -642,7 +648,7 @@ static void link_state_event(struct tipc_link *l_ptr, unsigned int event)
 			link_set_timer(l_ptr, cont_intv);
 			break;
 		default:
-			err("Unknown link event %u in WW state\n", event);
+			pr_err("%s%u in WW state\n", link_unk_evt, event);
 		}
 		break;
 	case WORKING_UNKNOWN:
@@ -654,8 +660,8 @@ static void link_state_event(struct tipc_link *l_ptr, unsigned int event)
 			link_set_timer(l_ptr, cont_intv);
 			break;
 		case RESET_MSG:
-			info("Resetting link <%s>, requested by peer "
-			     "while probing\n", l_ptr->name);
+			pr_info("%s<%s>, requested by peer while probing\n",
+				link_rst_msg, l_ptr->name);
 			tipc_link_reset(l_ptr);
 			l_ptr->state = RESET_RESET;
 			l_ptr->fsm_msg_cnt = 0;
@@ -680,8 +686,8 @@ static void link_state_event(struct tipc_link *l_ptr, unsigned int event)
 				l_ptr->fsm_msg_cnt++;
 				link_set_timer(l_ptr, cont_intv / 4);
 			} else {	/* Link has failed */
-				warn("Resetting link <%s>, peer not responding\n",
-				     l_ptr->name);
+				pr_warn("%s<%s>, peer not responding\n",
+					link_rst_msg, l_ptr->name);
 				tipc_link_reset(l_ptr);
 				l_ptr->state = RESET_UNKNOWN;
 				l_ptr->fsm_msg_cnt = 0;
@@ -692,7 +698,7 @@ static void link_state_event(struct tipc_link *l_ptr, unsigned int event)
 			}
 			break;
 		default:
-			err("Unknown link event %u in WU state\n", event);
+			pr_err("%s%u in WU state\n", link_unk_evt, event);
 		}
 		break;
 	case RESET_UNKNOWN:
@@ -726,7 +732,7 @@ static void link_state_event(struct tipc_link *l_ptr, unsigned int event)
 			link_set_timer(l_ptr, cont_intv);
 			break;
 		default:
-			err("Unknown link event %u in RU state\n", event);
+			pr_err("%s%u in RU state\n", link_unk_evt, event);
 		}
 		break;
 	case RESET_RESET:
@@ -751,11 +757,11 @@ static void link_state_event(struct tipc_link *l_ptr, unsigned int event)
 			link_set_timer(l_ptr, cont_intv);
 			break;
 		default:
-			err("Unknown link event %u in RR state\n", event);
+			pr_err("%s%u in RR state\n", link_unk_evt, event);
 		}
 		break;
 	default:
-		err("Unknown link state %u/%u\n", l_ptr->state, event);
+		pr_err("Unknown link state %u/%u\n", l_ptr->state, event);
 	}
 }
 
@@ -856,7 +862,8 @@ int tipc_link_send_buf(struct tipc_link *l_ptr, struct sk_buff *buf)
 		}
 		kfree_skb(buf);
 		if (imp > CONN_MANAGER) {
-			warn("Resetting link <%s>, send queue full", l_ptr->name);
+			pr_warn("%s<%s>, send queue full", link_rst_msg,
+				l_ptr->name);
 			tipc_link_reset(l_ptr);
 		}
 		return dsz;
@@ -944,7 +951,7 @@ int tipc_link_send(struct sk_buff *buf, u32 dest, u32 selector)
 	return res;
 }
 
-/*
+/**
  * tipc_link_send_names - send name table entries to new neighbor
  *
  * Send routine for bulk delivery of name table messages when contact
@@ -1409,8 +1416,8 @@ static void link_reset_all(unsigned long addr)
 
 	tipc_node_lock(n_ptr);
 
-	warn("Resetting all links to %s\n",
-	     tipc_addr_string_fill(addr_string, n_ptr->addr));
+	pr_warn("Resetting all links to %s\n",
+		tipc_addr_string_fill(addr_string, n_ptr->addr));
 
 	for (i = 0; i < MAX_BEARERS; i++) {
 		if (n_ptr->links[i]) {
@@ -1428,7 +1435,7 @@ static void link_retransmit_failure(struct tipc_link *l_ptr,
 {
 	struct tipc_msg *msg = buf_msg(buf);
 
-	warn("Retransmission failure on link <%s>\n", l_ptr->name);
+	pr_warn("Retransmission failure on link <%s>\n", l_ptr->name);
 
 	if (l_ptr->addr) {
 		/* Handle failure on standard link */
@@ -1440,21 +1447,23 @@ static void link_retransmit_failure(struct tipc_link *l_ptr,
 		struct tipc_node *n_ptr;
 		char addr_string[16];
 
-		info("Msg seq number: %u,  ", msg_seqno(msg));
-		info("Outstanding acks: %lu\n",
-		     (unsigned long) TIPC_SKB_CB(buf)->handle);
+		pr_info("Msg seq number: %u,  ", msg_seqno(msg));
+		pr_cont("Outstanding acks: %lu\n",
+			(unsigned long) TIPC_SKB_CB(buf)->handle);
 
 		n_ptr = tipc_bclink_retransmit_to();
 		tipc_node_lock(n_ptr);
 <