[SCSI] zfcp: Message cleanup

Cleanup the messages used in the zfcp driver: Remove unnecessary debug
and trace message and convert the remaining messages to standard
kernel macros. Remove the zfcp message macros and while updating the
whole flie also update the copyright headers.

Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

1 files changed, 21 insertions, 54 deletions

diff --git a/drivers/s390/scsi/zfcp_aux.c b/drivers/s390/scsi/zfcp_aux.c
index 7084a6ae1096..47739f4f6709 100644
--- a/drivers/s390/scsi/zfcp_aux.c
+++ b/drivers/s390/scsi/zfcp_aux.c
@@ -1,22 +1,9 @@
 /*
- * This file is part of the zfcp device driver for
- * FCP adapters for IBM System z9 and zSeries.
+ * zfcp device driver
  *
- * (C) Copyright IBM Corp. 2002, 2006
+ * Module interface and handling of zfcp data structures.
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * Copyright IBM Corporation 2002, 2008
  */
 
 /*
@@ -31,13 +18,16 @@
  *            Maxim Shchetynin
  *            Volker Sameske
  *            Ralph Wuerthner
+ *            Michael Loehr
+ *            Swen Schillig
+ *            Christof Schmitt
+ *            Martin Petermann
+ *            Sven Schuetz
  */
 
 #include <linux/miscdevice.h>
 #include "zfcp_ext.h"
 
-/* accumulated log level (module parameter) */
-static u32 loglevel = ZFCP_LOG_LEVEL_DEFAULTS;
 static char *device;
 /*********************** FUNCTION PROTOTYPES *********************************/
 
@@ -57,12 +47,6 @@ MODULE_LICENSE("GPL");
 module_param(device, charp, 0400);
 MODULE_PARM_DESC(device, "specify initial device");
 
-module_param(loglevel, uint, 0400);
-MODULE_PARM_DESC(loglevel,
-		 "log levels, 8 nibbles: "
-		 "FC ERP QDIO CIO Config FSF SCSI Other, "
-		 "levels: 0=none 1=normal 2=devel 3=trace");
-
 /****************************************************************/
 /************** Functions without logging ***********************/
 /****************************************************************/
@@ -87,8 +71,6 @@ _zfcp_hex_dump(char *addr, int count)
 /****** Functions to handle the request ID hash table    ********/
 /****************************************************************/
 
-#define ZFCP_LOG_AREA			ZFCP_LOG_AREA_FSF
-
 static int zfcp_reqlist_alloc(struct zfcp_adapter *adapter)
 {
 	int idx;
@@ -118,14 +100,10 @@ int zfcp_reqlist_isempty(struct zfcp_adapter *adapter)
 	return 1;
 }
 
-#undef ZFCP_LOG_AREA
-
 /****************************************************************/
 /************** Uncategorised Functions *************************/
 /****************************************************************/
 
-#define ZFCP_LOG_AREA			ZFCP_LOG_AREA_OTHER
-
 /**
  * zfcp_device_setup - setup function
  * @str: pointer to parameter string
@@ -143,8 +121,11 @@ zfcp_device_setup(char *devstr)
 
 	len = strlen(devstr) + 1;
 	str = kmalloc(len, GFP_KERNEL);
-	if (!str)
-		goto err_out;
+	if (!str) {
+		pr_err("zfcp: Could not allocate memory for "
+		       "device parameter string, device not attached.\n");
+		return 0;
+	}
 	memcpy(str, devstr, len);
 
 	tmp = strchr(str, ',');
@@ -167,7 +148,8 @@ zfcp_device_setup(char *devstr)
 	return 1;
 
  err_out:
-	ZFCP_LOG_NORMAL("Parse error for device parameter string %s\n", str);
+	pr_err("zfcp: Parse error for device parameter string %s, "
+	       "device not attached.\n", str);
 	kfree(str);
 	return 0;
 }
@@ -248,8 +230,6 @@ zfcp_module_init(void)
 	if (!zfcp_data.gid_pn_cache)
 		goto out_gid_cache;
 
-	atomic_set(&zfcp_data.loglevel, loglevel);
-
 	/* initialize adapter list */
 	INIT_LIST_HEAD(&zfcp_data.adapter_list_head);
 
@@ -263,8 +243,7 @@ zfcp_module_init(void)
 
 	retval = misc_register(&zfcp_cfdc_misc);
 	if (retval != 0) {
-		ZFCP_LOG_INFO("registration of misc device "
-			      "zfcp_cfdc failed\n");
+		pr_err("zfcp: registration of misc device zfcp_cfdc failed\n");
 		goto out_misc;
 	}
 
@@ -277,7 +256,7 @@ zfcp_module_init(void)
 	/* setup dynamic I/O */
 	retval = zfcp_ccw_register();
 	if (retval) {
-		ZFCP_LOG_NORMAL("registration with common I/O layer failed\n");
+		pr_err("zfcp: Registration with common I/O layer failed.\n");
 		goto out_ccw_register;
 	}
 
@@ -300,14 +279,10 @@ zfcp_module_init(void)
 	return retval;
 }
 
-#undef ZFCP_LOG_AREA
-
 /****************************************************************/
 /****** Functions for configuration/set-up of structures ********/
 /****************************************************************/
 
-#define ZFCP_LOG_AREA			ZFCP_LOG_AREA_CONFIG
-
 /**
  * zfcp_get_unit_by_lun - find unit in unit list of port by FCP LUN
  * @port: pointer to port to search for unit
@@ -598,6 +573,8 @@ static void _zfcp_status_read_scheduler(struct work_struct *work)
  * All adapter internal structures are set up.
  * Proc-fs entries are also created.
  *
+ * FIXME: Use -ENOMEM as return code for allocation failures
+ *
  * returns:	0             if a new adapter was successfully enqueued
  *              ZFCP_KNOWN    if an adapter with this devno was already present
  *		-ENOMEM       if alloc failed
@@ -615,11 +592,8 @@ zfcp_adapter_enqueue(struct ccw_device *ccw_device)
 
 	/* try to allocate new adapter data structure (zeroed) */
 	adapter = kzalloc(sizeof (struct zfcp_adapter), GFP_KERNEL);
-	if (!adapter) {
-		ZFCP_LOG_INFO("error: allocation of base adapter "
-			      "structure failed\n");
+	if (!adapter)
 		goto out;
-	}
 
 	ccw_device->handler = NULL;
 
@@ -760,7 +734,6 @@ zfcp_adapter_dequeue(struct zfcp_adapter *adapter)
 	zfcp_reqlist_free(adapter);
 	kfree(adapter->fc_stats);
 	kfree(adapter->stats_reset_data);
-	ZFCP_LOG_TRACE("freeing adapter structure\n");
 	kfree(adapter);
  out:
 	return;
@@ -908,12 +881,8 @@ zfcp_nameserver_enqueue(struct zfcp_adapter *adapter)
 
 	port = zfcp_port_enqueue(adapter, 0, ZFCP_STATUS_PORT_WKA,
 				 ZFCP_DID_DIRECTORY_SERVICE);
-	if (!port) {
-		ZFCP_LOG_INFO("error: enqueue of nameserver port for "
-			      "adapter %s failed\n",
-			      zfcp_get_busid_by_adapter(adapter));
+	if (!port)
 		return -ENXIO;
-	}
 	zfcp_port_put(port);
 
 	return 0;
@@ -946,5 +915,3 @@ int zfcp_sg_setup_table(struct scatterlist *sg, int count)
 	}
 	return 0;
 }
-
-#undef ZFCP_LOG_AREA