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-rw-r--r--net/tipc/Kconfig13
-rw-r--r--net/tipc/config.c8
-rw-r--r--net/tipc/core.c7
-rw-r--r--net/tipc/core.h27
-rw-r--r--net/tipc/link.h1
-rw-r--r--net/tipc/log.c213
-rw-r--r--net/tipc/log.h66
7 files changed, 2 insertions, 333 deletions
diff --git a/net/tipc/Kconfig b/net/tipc/Kconfig
index e24519a54938..585460180ffb 100644
--- a/net/tipc/Kconfig
+++ b/net/tipc/Kconfig
@@ -41,17 +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.
-
endif # TIPC
diff --git a/net/tipc/config.c b/net/tipc/config.c
index 96cfbf834a10..a056a3852f71 100644
--- a/net/tipc/config.c
+++ b/net/tipc/config.c
@@ -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;
diff --git a/net/tipc/core.c b/net/tipc/core.c
index 3689cb4067c8..6586eac6a50e 100644
--- a/net/tipc/core.c
+++ b/net/tipc/core.c
@@ -46,9 +46,6 @@
#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;
@@ -124,7 +121,6 @@ static void tipc_core_stop(void)
tipc_nametbl_stop();
tipc_ref_table_stop();
tipc_socket_stop();
- tipc_log_resize(0);
}
/**
@@ -160,9 +156,6 @@ static int __init tipc_init(void)
{
int res;
- if (tipc_log_resize(CONFIG_TIPC_LOG) != 0)
- pr_warn("Unable to create log buffer\n");
-
pr_info("Activated (version " TIPC_MOD_VER ")\n");
tipc_own_addr = 0;
diff --git a/net/tipc/core.h b/net/tipc/core.h
index 4dcdb4859026..fd42e106c185 100644
--- a/net/tipc/core.h
+++ b/net/tipc/core.h
@@ -63,37 +63,10 @@
#define ULTRA_STRING_MAX_LEN 32768
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;
int tipc_snprintf(char *buf, int len, const char *fmt, ...);
/*
- * TIPC_OUTPUT is the destination print buffer for system messages.
- */
-#ifndef TIPC_OUTPUT
-#define TIPC_OUTPUT TIPC_LOG
-#endif
-
-/*
* TIPC-specific error codes
*/
#define ELINKCONG EAGAIN /* link congestion <=> resource unavailable */
diff --git a/net/tipc/link.h b/net/tipc/link.h
index 8024a56a1ebc..6e921121be06 100644
--- a/net/tipc/link.h
+++ b/net/tipc/link.h
@@ -37,7 +37,6 @@
#ifndef _TIPC_LINK_H
#define _TIPC_LINK_H
-#include "log.h"
#include "msg.h"
#include "node.h"
diff --git a/net/tipc/log.c b/net/tipc/log.c
index fa7ce927fda5..abef644f27d8 100644
--- a/net/tipc/log.c
+++ b/net/tipc/log.c
@@ -36,138 +36,6 @@
#include "core.h"
#include "config.h"
-#include "log.h"
-
-/*
- * TIPC pre-defines the following print buffers:
- *
- * TIPC_NULL : null buffer (i.e. print nowhere)
- * TIPC_CONS : system console
- * TIPC_LOG : TIPC log buffer
- *
- * Additional user-defined print buffers are also permitted.
- */
-static struct print_buf null_buf = { NULL, 0, NULL, 0 };
-struct print_buf *const TIPC_NULL = &null_buf;
-
-static struct print_buf cons_buf = { NULL, 0, NULL, 1 };
-struct print_buf *const TIPC_CONS = &cons_buf;
-
-static struct print_buf log_buf = { NULL, 0, NULL, 1 };
-struct print_buf *const TIPC_LOG = &log_buf;
-
-/*
- * Locking policy when using print buffers.
- *
- * 1) tipc_printf() uses 'print_lock' to protect against concurrent access to
- * 'print_string' when writing to a print buffer. This also protects against
- * concurrent writes to the print buffer being written to.
- *
- * 2) tipc_log_XXX() leverages the aforementioned use of 'print_lock' to
- * protect against all types of concurrent operations on their associated
- * print buffer (not just write operations).
- *
- * Note: All routines of the form tipc_printbuf_XXX() are lock-free, and rely
- * on the caller to prevent simultaneous use of the print buffer(s) being
- * manipulated.
- */
-static DEFINE_SPINLOCK(print_lock);
-
-static void tipc_printbuf_move(struct print_buf *pb_to,
- struct print_buf *pb_from);
-
-/**
- * tipc_printbuf_init - initialize print buffer to empty
- * @pb: pointer to print buffer structure
- * @raw: pointer to character array used by print buffer
- * @size: size of character array
- *
- * Note: If the character array is too small (or absent), the print buffer
- * becomes a null device that discards anything written to it.
- */
-void tipc_printbuf_init(struct print_buf *pb, char *raw, u32 size)
-{
- pb->buf = raw;
- pb->crs = raw;
- pb->size = size;
- pb->echo = 0;
-
- if (size < TIPC_PB_MIN_SIZE) {
- pb->buf = NULL;
- } else if (raw) {
- pb->buf[0] = 0;
- pb->buf[size - 1] = ~0;
- }
-}
-
-/**
- * tipc_printbuf_reset - reinitialize print buffer to empty state
- * @pb: pointer to print buffer structure
- */
-static void tipc_printbuf_reset(struct print_buf *pb)
-{
- if (pb->buf) {
- pb->crs = pb->buf;
- pb->buf[0] = 0;
- pb->buf[pb->size - 1] = ~0;
- }
-}
-
-/**
- * tipc_printbuf_empty - test if print buffer is in empty state
- * @pb: pointer to print buffer structure
- *
- * Returns non-zero if print buffer is empty.
- */
-static int tipc_printbuf_empty(struct print_buf *pb)
-{
- return !pb->buf || (pb->crs == pb->buf);
-}
-
-/**
- * tipc_printbuf_move - move print buffer contents to another print buffer
- * @pb_to: pointer to destination print buffer structure
- * @pb_from: pointer to source print buffer structure
- *
- * Current contents of destination print buffer (if any) are discarded.
- * Source print buffer becomes empty if a successful move occurs.
- */
-static void tipc_printbuf_move(struct print_buf *pb_to,
- struct print_buf *pb_from)
-{
- int len;
-
- /* Handle the cases where contents can't be moved */
- if (!pb_to->buf)
- return;
-
- if (!pb_from->buf) {
- tipc_printbuf_reset(pb_to);
- return;
- }
-
- if (pb_to->size < pb_from->size) {
- strcpy(pb_to->buf, "*** PRINT BUFFER MOVE ERROR ***");
- pb_to->buf[pb_to->size - 1] = ~0;
- pb_to->crs = strchr(pb_to->buf, 0);
- return;
- }
-
- /* Copy data from char after cursor to end (if used) */
- len = pb_from->buf + pb_from->size - pb_from->crs - 2;
- if ((pb_from->buf[pb_from->size - 1] == 0) && (len > 0)) {
- strcpy(pb_to->buf, pb_from->crs + 1);
- pb_to->crs = pb_to->buf + len;
- } else
- pb_to->crs = pb_to->buf;
-
- /* Copy data from start to cursor (always) */
- len = pb_from->crs - pb_from->buf;
- strcpy(pb_to->crs, pb_from->buf);
- pb_to->crs += len;
-
- tipc_printbuf_reset(pb_from);
-}
/**
* tipc_snprintf - append formatted output to print buffer
@@ -185,84 +53,3 @@ int tipc_snprintf(char *buf, int len, const char *fmt, ...)
va_end(args);
return i;
}
-
-/**
- * tipc_log_resize - change the size of the TIPC log buffer
- * @log_size: print buffer size to use
- */
-int tipc_log_resize(int log_size)
-{
- int res = 0;
-
- spin_lock_bh(&print_lock);
- kfree(TIPC_LOG->buf);
- TIPC_LOG->buf = NULL;
- if (log_size) {
- if (log_size < TIPC_PB_MIN_SIZE)
- log_size = TIPC_PB_MIN_SIZE;
- res = TIPC_LOG->echo;
- tipc_printbuf_init(TIPC_LOG, kmalloc(log_size, GFP_ATOMIC),
- log_size);
- TIPC_LOG->echo = res;
- res = !TIPC_LOG->buf;
- }
- spin_unlock_bh(&print_lock);
-
- return res;
-}
-
-/**
- * tipc_log_resize_cmd - reconfigure size of TIPC log buffer
- */
-struct sk_buff *tipc_log_resize_cmd(const void *req_tlv_area, int req_tlv_space)
-{
- u32 value;
-
- if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_UNSIGNED))
- return tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR);
-
- value = ntohl(*(__be32 *)TLV_DATA(req_tlv_area));
- if (value > 32768)
- return tipc_cfg_reply_error_string(TIPC_CFG_INVALID_VALUE
- " (log size must be 0-32768)");
- if (tipc_log_resize(value))
- return tipc_cfg_reply_error_string(
- "unable to create specified log (log size is now 0)");
- return tipc_cfg_reply_none();
-}
-
-/**
- * tipc_log_dump - capture TIPC log buffer contents in configuration message
- */
-struct sk_buff *tipc_log_dump(void)
-{
- struct sk_buff *reply;
-
- spin_lock_bh(&print_lock);
- if (!TIPC_LOG->buf) {
- spin_unlock_bh(&print_lock);
- reply = tipc_cfg_reply_ultra_string("log not activated\n");
- } else if (tipc_printbuf_empty(TIPC_LOG)) {
- spin_unlock_bh(&print_lock);
- reply = tipc_cfg_reply_ultra_string("log is empty\n");
- } else {
- struct tlv_desc *rep_tlv;
- struct print_buf pb;
- int str_len;
-
- str_len = min(TIPC_LOG->size, 32768u);
- spin_unlock_bh(&print_lock);
- reply = tipc_cfg_reply_alloc(TLV_SPACE(str_len));
- if (reply) {
- rep_tlv = (struct tlv_desc *)reply->data;
- tipc_printbuf_init(&pb, TLV_DATA(rep_tlv), str_len);
- spin_lock_bh(&print_lock);
- tipc_printbuf_move(&pb, TIPC_LOG);
- spin_unlock_bh(&print_lock);
- str_len = strlen(TLV_DATA(rep_tlv)) + 1;
- skb_put(reply, TLV_SPACE(str_len));
- TLV_SET(rep_tlv, TIPC_TLV_ULTRA_STRING, NULL, str_len);
- }
- }
- return reply;
-}
diff --git a/net/tipc/log.h b/net/tipc/log.h
deleted file mode 100644
index d1f5eb967fd8..000000000000
--- a/net/tipc/log.h
+++ /dev/null
@@ -1,66 +0,0 @@
-/*
- * net/tipc/log.h: Include file for TIPC print buffer routines
- *
- * Copyright (c) 1997-2006, Ericsson AB
- * Copyright (c) 2005-2007, Wind River Systems
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Neither the names of the copyright holders nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef _TIPC_LOG_H
-#define _TIPC_LOG_H
-
-/**
- * struct print_buf - TIPC print buffer structure
- * @buf: pointer to character array containing print buffer contents
- * @size: size of character array
- * @crs: pointer to first unused space in character array (i.e. final NUL)
- * @echo: echo output to system console if non-zero
- */
-struct print_buf {
- char *buf;
- u32 size;
- char *crs;
- int echo;
-};
-
-#define TIPC_PB_MIN_SIZE 64 /* minimum size for a print buffer's array */
-#define TIPC_PB_MAX_STR 512 /* max printable string (with trailing NUL) */
-
-void tipc_printbuf_init(struct print_buf *pb, char *buf, u32 size);
-int tipc_printbuf_validate(struct print_buf *pb);
-
-int tipc_log_resize(int log_size);
-
-struct sk_buff *tipc_log_resize_cmd(const void *req_tlv_area,
- int req_tlv_space);
-struct sk_buff *tipc_log_dump(void);
-
-#endif