[SCSI] zfcp: Redesign of the debug tracing final cleanup.

This patch is the final cleanup of the redesign from the zfcp tracing.
Structures and elements which were used by multiple areas of the
former debug tracing are now changed to the new scheme.

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

12 files changed, 180 insertions, 181 deletions

diff --git a/drivers/s390/scsi/zfcp_aux.c b/drivers/s390/scsi/zfcp_aux.c
index 044fb22718d2..352ca0d4ca25 100644
--- a/drivers/s390/scsi/zfcp_aux.c
+++ b/drivers/s390/scsi/zfcp_aux.c
@@ -311,8 +311,7 @@ int zfcp_status_read_refill(struct zfcp_adapter *adapter)
                 if (zfcp_fsf_status_read(adapter->qdio)) {
                         if (atomic_read(&adapter->stat_miss) >=
                             adapter->stat_read_buf_num) {
-                                zfcp_erp_adapter_reopen(adapter, 0, "axsref1",
-                                                        NULL);
+                                zfcp_erp_adapter_reopen(adapter, 0, "axsref1");
                                 return 1;
                         }
                         break;
@@ -459,7 +458,7 @@ void zfcp_adapter_unregister(struct zfcp_adapter *adapter)
         sysfs_remove_group(&cdev->dev.kobj, &zfcp_sysfs_adapter_attrs);
 
         zfcp_erp_thread_kill(adapter);
-        zfcp_dbf_adapter_unregister(adapter->dbf);
+        zfcp_dbf_adapter_unregister(adapter);
         zfcp_qdio_destroy(adapter->qdio);
 
         zfcp_ccw_adapter_put(adapter); /* final put to release */
diff --git a/drivers/s390/scsi/zfcp_ccw.c b/drivers/s390/scsi/zfcp_ccw.c
index 0833c2b51e39..4f7852dd30c7 100644
--- a/drivers/s390/scsi/zfcp_ccw.c
+++ b/drivers/s390/scsi/zfcp_ccw.c
@@ -48,7 +48,7 @@ static int zfcp_ccw_activate(struct ccw_device *cdev)
 
         zfcp_erp_set_adapter_status(adapter, ZFCP_STATUS_COMMON_RUNNING);
         zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED,
-                                "ccresu2", NULL);
+                                "ccresu2");
         zfcp_erp_wait(adapter);
         flush_work(&adapter->scan_work);
 
@@ -182,7 +182,7 @@ static int zfcp_ccw_set_offline(struct ccw_device *cdev)
         if (!adapter)
                 return 0;
 
-        zfcp_erp_adapter_shutdown(adapter, 0, "ccsoff1", NULL);
+        zfcp_erp_adapter_shutdown(adapter, 0, "ccsoff1");
         zfcp_erp_wait(adapter);
 
         zfcp_ccw_adapter_put(adapter);
@@ -207,24 +207,24 @@ static int zfcp_ccw_notify(struct ccw_device *cdev, int event)
         switch (event) {
         case CIO_GONE:
                 dev_warn(&cdev->dev, "The FCP device has been detached\n");
-                zfcp_erp_adapter_shutdown(adapter, 0, "ccnoti1", NULL);
+                zfcp_erp_adapter_shutdown(adapter, 0, "ccnoti1");
                 break;
         case CIO_NO_PATH:
                 dev_warn(&cdev->dev,
                          "The CHPID for the FCP device is offline\n");
-                zfcp_erp_adapter_shutdown(adapter, 0, "ccnoti2", NULL);
+                zfcp_erp_adapter_shutdown(adapter, 0, "ccnoti2");
                 break;
         case CIO_OPER:
                 dev_info(&cdev->dev, "The FCP device is operational again\n");
                 zfcp_erp_set_adapter_status(adapter,
                                             ZFCP_STATUS_COMMON_RUNNING);
                 zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED,
-                                        "ccnoti4", NULL);
+                                        "ccnoti4");
                 break;
         case CIO_BOXED:
                 dev_warn(&cdev->dev, "The FCP device did not respond within "
                                      "the specified time\n");
-                zfcp_erp_adapter_shutdown(adapter, 0, "ccnoti5", NULL);
+                zfcp_erp_adapter_shutdown(adapter, 0, "ccnoti5");
                 break;
         }
 
@@ -243,7 +243,7 @@ static void zfcp_ccw_shutdown(struct ccw_device *cdev)
         if (!adapter)
                 return;
 
-        zfcp_erp_adapter_shutdown(adapter, 0, "ccshut1", NULL);
+        zfcp_erp_adapter_shutdown(adapter, 0, "ccshut1");
         zfcp_erp_wait(adapter);
         zfcp_erp_thread_kill(adapter);
 
diff --git a/drivers/s390/scsi/zfcp_cfdc.c b/drivers/s390/scsi/zfcp_cfdc.c
index d692e229ecba..46342fee394d 100644
--- a/drivers/s390/scsi/zfcp_cfdc.c
+++ b/drivers/s390/scsi/zfcp_cfdc.c
@@ -288,7 +288,7 @@ void zfcp_cfdc_adapter_access_changed(struct zfcp_adapter *adapter)
                     (status & ZFCP_STATUS_COMMON_ACCESS_BOXED))
                         zfcp_erp_port_reopen(port,
                                              ZFCP_STATUS_COMMON_ERP_FAILED,
-                                             "cfaac_1", NULL);
+                                             "cfaac_1");
         }
         read_unlock_irqrestore(&adapter->port_list_lock, flags);
 
@@ -299,7 +299,7 @@ void zfcp_cfdc_adapter_access_changed(struct zfcp_adapter *adapter)
                     (status & ZFCP_STATUS_COMMON_ACCESS_BOXED))
                         zfcp_erp_lun_reopen(sdev,
                                             ZFCP_STATUS_COMMON_ERP_FAILED,
-                                            "cfaac_2", NULL);
+                                            "cfaac_2");
         }
 }
 
@@ -426,7 +426,7 @@ int zfcp_cfdc_open_lun_eval(struct scsi_device *sdev,
                         zfcp_scsi_dev_lun(sdev),
                         (unsigned long long)zfcp_sdev->port->wwpn);
                 zfcp_erp_set_lun_status(sdev, ZFCP_STATUS_COMMON_ERP_FAILED);
-                zfcp_erp_lun_shutdown(sdev, 0, "fsouh_6", NULL);
+                zfcp_erp_lun_shutdown(sdev, 0, "fsouh_6");
                 return -EACCES;
         }
 
@@ -437,7 +437,7 @@ int zfcp_cfdc_open_lun_eval(struct scsi_device *sdev,
                         zfcp_scsi_dev_lun(sdev),
                         (unsigned long long)zfcp_sdev->port->wwpn);
                 zfcp_erp_set_lun_status(sdev, ZFCP_STATUS_COMMON_ERP_FAILED);
-                zfcp_erp_lun_shutdown(sdev, 0, "fsosh_8", NULL);
+                zfcp_erp_lun_shutdown(sdev, 0, "fsosh_8");
                 return -EACCES;
         }
 
diff --git a/drivers/s390/scsi/zfcp_dbf.c b/drivers/s390/scsi/zfcp_dbf.c
index f9bd094c6e63..96d1462e0bf5 100644
--- a/drivers/s390/scsi/zfcp_dbf.c
+++ b/drivers/s390/scsi/zfcp_dbf.c
@@ -377,26 +377,37 @@ void zfcp_dbf_scsi(char *tag, struct scsi_cmnd *sc, struct zfcp_fsf_req *fsf)
                 }
         }
 
-        debug_event(adapter->dbf->scsi, 1, rec, sizeof(*rec));
+        debug_event(dbf->scsi, 1, rec, sizeof(*rec));
         spin_unlock_irqrestore(&dbf->scsi_lock, flags);
 }
 
-static debug_info_t *zfcp_dbf_reg(const char *name, int level,
-                                  struct debug_view *view, int size)
+static debug_info_t *zfcp_dbf_reg(const char *name, int size, int rec_size)
 {
         struct debug_info *d;
 
-        d = debug_register(name, dbfsize, level, size);
+        d = debug_register(name, size, 1, rec_size);
         if (!d)
                 return NULL;
 
         debug_register_view(d, &debug_hex_ascii_view);
-        debug_register_view(d, view);
-        debug_set_level(d, level);
+        debug_set_level(d, 3);
 
         return d;
 }
 
+static void zfcp_dbf_unregister(struct zfcp_dbf *dbf)
+{
+        if (!dbf)
+                return;
+
+        debug_unregister(dbf->scsi);
+        debug_unregister(dbf->san);
+        debug_unregister(dbf->hba);
+        debug_unregister(dbf->pay);
+        debug_unregister(dbf->rec);
+        kfree(dbf);
+}
+
 /**
  * zfcp_adapter_debug_register - registers debug feature for an adapter
  * @adapter: pointer to adapter for which debug features should be registered
@@ -404,15 +415,13 @@ static debug_info_t *zfcp_dbf_reg(const char *name, int level,
  */
 int zfcp_dbf_adapter_register(struct zfcp_adapter *adapter)
 {
-        char dbf_name[DEBUG_MAX_NAME_LEN];
+        char name[DEBUG_MAX_NAME_LEN];
         struct zfcp_dbf *dbf;
 
         dbf = kzalloc(sizeof(struct zfcp_dbf), GFP_KERNEL);
         if (!dbf)
                 return -ENOMEM;
 
-        dbf->adapter = adapter;
-
         spin_lock_init(&dbf->pay_lock);
         spin_lock_init(&dbf->hba_lock);
         spin_lock_init(&dbf->san_lock);
@@ -420,59 +429,52 @@ int zfcp_dbf_adapter_register(struct zfcp_adapter *adapter)
         spin_lock_init(&dbf->rec_lock);
 
         /* debug feature area which records recovery activity */
-        sprintf(dbf_name, "zfcp_%s_rec", dev_name(&adapter->ccw_device->dev));
-        dbf->rec = zfcp_dbf_reg(dbf_name, 3, NULL, sizeof(struct zfcp_dbf_rec));
+        sprintf(name, "zfcp_%s_rec", dev_name(&adapter->ccw_device->dev));
+        dbf->rec = zfcp_dbf_reg(name, dbfsize, sizeof(struct zfcp_dbf_rec));
         if (!dbf->rec)
                 goto err_out;
 
         /* debug feature area which records HBA (FSF and QDIO) conditions */
-        sprintf(dbf_name, "zfcp_%s_hba", dev_name(&adapter->ccw_device->dev));
-        dbf->hba = zfcp_dbf_reg(dbf_name, 3, NULL, sizeof(struct zfcp_dbf_hba));
+        sprintf(name, "zfcp_%s_hba", dev_name(&adapter->ccw_device->dev));
+        dbf->hba = zfcp_dbf_reg(name, dbfsize, sizeof(struct zfcp_dbf_hba));
         if (!dbf->hba)
                 goto err_out;
 
         /* debug feature area which records payload info */
-        sprintf(dbf_name, "zfcp_%s_pay", dev_name(&adapter->ccw_device->dev));
-        dbf->pay = zfcp_dbf_reg(dbf_name, 3, NULL,
-                                sizeof(struct zfcp_dbf_pay));
+        sprintf(name, "zfcp_%s_pay", dev_name(&adapter->ccw_device->dev));
+        dbf->pay = zfcp_dbf_reg(name, dbfsize * 2, sizeof(struct zfcp_dbf_pay));
         if (!dbf->pay)
                 goto err_out;
 
         /* debug feature area which records SAN command failures and recovery */
-        sprintf(dbf_name, "zfcp_%s_san", dev_name(&adapter->ccw_device->dev));
-        dbf->san = zfcp_dbf_reg(dbf_name, 3, NULL, sizeof(struct zfcp_dbf_san));
+        sprintf(name, "zfcp_%s_san", dev_name(&adapter->ccw_device->dev));
+        dbf->san = zfcp_dbf_reg(name, dbfsize, sizeof(struct zfcp_dbf_san));
         if (!dbf->san)
                 goto err_out;
 
         /* debug feature area which records SCSI command failures and recovery */
-        sprintf(dbf_name, "zfcp_%s_scsi", dev_name(&adapter->ccw_device->dev));
-        dbf->scsi = zfcp_dbf_reg(dbf_name, 3, NULL,
-                                 sizeof(struct zfcp_dbf_scsi));
+        sprintf(name, "zfcp_%s_scsi", dev_name(&adapter->ccw_device->dev));
+        dbf->scsi = zfcp_dbf_reg(name, dbfsize, sizeof(struct zfcp_dbf_scsi));
         if (!dbf->scsi)
                 goto err_out;
 
         adapter->dbf = dbf;
-        return 0;
 
+        return 0;
 err_out:
-        zfcp_dbf_adapter_unregister(dbf);
+        zfcp_dbf_unregister(dbf);
         return -ENOMEM;
 }
 
 /**
  * zfcp_adapter_debug_unregister - unregisters debug feature for an adapter
- * @dbf: pointer to dbf for which debug features should be unregistered
+ * @adapter: pointer to adapter for which debug features should be unregistered
  */
-void zfcp_dbf_adapter_unregister(struct zfcp_dbf *dbf)
+void zfcp_dbf_adapter_unregister(struct zfcp_adapter *adapter)
 {
-        if (!dbf)
-                return;
-        debug_unregister(dbf->scsi);
-        debug_unregister(dbf->san);
-        debug_unregister(dbf->hba);
-        debug_unregister(dbf->pay);
-        debug_unregister(dbf->rec);
-        dbf->adapter->dbf = NULL;
-        kfree(dbf);
+        struct zfcp_dbf *dbf = adapter->dbf;
+
+        adapter->dbf = NULL;
+        zfcp_dbf_unregister(dbf);
 }
 
diff --git a/drivers/s390/scsi/zfcp_dbf.h b/drivers/s390/scsi/zfcp_dbf.h
index 2cee8197dd02..714f087eb7a9 100644
--- a/drivers/s390/scsi/zfcp_dbf.h
+++ b/drivers/s390/scsi/zfcp_dbf.h
@@ -14,8 +14,6 @@
 #include "zfcp_def.h"
 
 #define ZFCP_DBF_TAG_LEN       7
-#define ZFCP_DBF_TAG_SIZE      4
-#define ZFCP_DBF_ID_SIZE       7
 
 #define ZFCP_DBF_INVALID_LUN    0xFFFFFFFFFFFFFFFFull
 
@@ -233,13 +231,31 @@ struct zfcp_dbf_scsi {
  * @data: unformatted data
  */
 struct zfcp_dbf_pay {
+        u8 counter;
         char area[ZFCP_DBF_TAG_LEN];
-        char counter;
         u64 fsf_req_id;
 #define ZFCP_DBF_PAY_MAX_REC 0x100
         char data[ZFCP_DBF_PAY_MAX_REC];
 } __packed;
 
+/**
+ * struct zfcp_dbf - main dbf trace structure
+ * @pay: reference to payload trace area
+ * @rec: reference to recovery trace area
+ * @hba: reference to hba trace area
+ * @san: reference to san trace area
+ * @scsi: reference to scsi trace area
+ * @pay_lock: lock protecting payload trace buffer
+ * @rec_lock: lock protecting recovery trace buffer
+ * @hba_lock: lock protecting hba trace buffer
+ * @san_lock: lock protecting san trace buffer
+ * @scsi_lock: lock protecting scsi trace buffer
+ * @pay_buf: pre-allocated buffer for payload
+ * @rec_buf: pre-allocated buffer for recovery
+ * @hba_buf: pre-allocated buffer for hba
+ * @san_buf: pre-allocated buffer for san
+ * @scsi_buf: pre-allocated buffer for scsi
+ */
 struct zfcp_dbf {
         debug_info_t                    *pay;
         debug_info_t                    *rec;
@@ -251,12 +267,11 @@ struct zfcp_dbf {
         spinlock_t                      hba_lock;
         spinlock_t                      san_lock;
         spinlock_t                      scsi_lock;
+        struct zfcp_dbf_pay             pay_buf;
         struct zfcp_dbf_rec             rec_buf;
         struct zfcp_dbf_hba             hba_buf;
         struct zfcp_dbf_san             san_buf;
         struct zfcp_dbf_scsi            scsi_buf;
-        struct zfcp_dbf_pay             pay_buf;
-        struct zfcp_adapter             *adapter;
 };
 
 static inline
diff --git a/drivers/s390/scsi/zfcp_erp.c b/drivers/s390/scsi/zfcp_erp.c
index 62b1b4a03ee3..066f9ea67502 100644
--- a/drivers/s390/scsi/zfcp_erp.c
+++ b/drivers/s390/scsi/zfcp_erp.c
@@ -236,7 +236,7 @@ static struct zfcp_erp_action *zfcp_erp_setup_act(int need, u32 act_status,
 static int zfcp_erp_action_enqueue(int want, struct zfcp_adapter *adapter,
                                    struct zfcp_port *port,
                                    struct scsi_device *sdev,
-                                   char *id, void *ref, u32 act_status)
+                                   char *id, u32 act_status)
 {
         int retval = 1, need;
         struct zfcp_erp_action *act;
@@ -262,7 +262,7 @@ static int zfcp_erp_action_enqueue(int want, struct zfcp_adapter *adapter,
 }
 
 static int _zfcp_erp_adapter_reopen(struct zfcp_adapter *adapter,
-                                    int clear_mask, char *id, void *ref)
+                                    int clear_mask, char *id)
 {
         zfcp_erp_adapter_block(adapter, clear_mask);
         zfcp_scsi_schedule_rports_block(adapter);
@@ -274,7 +274,7 @@ static int _zfcp_erp_adapter_reopen(struct zfcp_adapter *adapter,
                 return -EIO;
         }
         return zfcp_erp_action_enqueue(ZFCP_ERP_ACTION_REOPEN_ADAPTER,
-                                       adapter, NULL, NULL, id, ref, 0);
+                                       adapter, NULL, NULL, id, 0);
 }
 
 /**
@@ -282,10 +282,8 @@ static int _zfcp_erp_adapter_reopen(struct zfcp_adapter *adapter,
  * @adapter: Adapter to reopen.
  * @clear: Status flags to clear.
  * @id: Id for debug trace event.
- * @ref: Reference for debug trace event.
  */
-void zfcp_erp_adapter_reopen(struct zfcp_adapter *adapter, int clear,
-                             char *id, void *ref)
+void zfcp_erp_adapter_reopen(struct zfcp_adapter *adapter, int clear, char *id)
 {
         unsigned long flags;
 
@@ -298,7 +296,7 @@ void zfcp_erp_adapter_reopen(struct zfcp_adapter *adapter, int clear,
                                             ZFCP_STATUS_COMMON_ERP_FAILED);
         else
                 zfcp_erp_action_enqueue(ZFCP_ERP_ACTION_REOPEN_ADAPTER, adapter,
-                                        NULL, NULL, id, ref, 0);
+                                        NULL, NULL, id, 0);
         write_unlock_irqrestore(&adapter->erp_lock, flags);
 }
 
@@ -307,13 +305,12 @@ void zfcp_erp_adapter_reopen(struct zfcp_adapter *adapter, int clear,
  * @adapter: Adapter to shut down.
  * @clear: Status flags to clear.
  * @id: Id for debug trace event.
- * @ref: Reference for debug trace event.
  */
 void zfcp_erp_adapter_shutdown(struct zfcp_adapter *adapter, int clear,
-                               char *id, void *ref)
+                               char *id)
 {
         int flags = ZFCP_STATUS_COMMON_RUNNING | ZFCP_STATUS_COMMON_ERP_FAILED;
-        zfcp_erp_adapter_reopen(adapter, clear | flags, id, ref);
+        zfcp_erp_adapter_reopen(adapter, clear | flags, id);
 }
 
 /**
@@ -321,13 +318,11 @@ void zfcp_erp_adapter_shutdown(struct zfcp_adapter *adapter, int clear,
  * @port: Port to shut down.
  * @clear: Status flags to clear.
  * @id: Id for debug trace event.
- * @ref: Reference for debug trace event.
  */
-void zfcp_erp_port_shutdown(struct zfcp_port *port, int clear, char *id,
-                            void *ref)
+void zfcp_erp_port_shutdown(struct zfcp_port *port, int clear, char *id)
 {
         int flags = ZFCP_STATUS_COMMON_RUNNING | ZFCP_STATUS_COMMON_ERP_FAILED;
-        zfcp_erp_port_reopen(port, clear | flags, id, ref);
+        zfcp_erp_port_reopen(port, clear | flags, id);
 }
 
 static void zfcp_erp_port_block(struct zfcp_port *port, int clear)
@@ -336,8 +331,8 @@ static void zfcp_erp_port_block(struct zfcp_port *port, int clear)
                                     ZFCP_STATUS_COMMON_UNBLOCKED | clear);
 }
 
-static void _zfcp_erp_port_forced_reopen(struct zfcp_port *port,
-                                         int clear, char *id, void *ref)
+static void _zfcp_erp_port_forced_reopen(struct zfcp_port *port, int clear,
+                                         char *id)
 {
         zfcp_erp_port_block(port, clear);
         zfcp_scsi_schedule_rport_block(port);
@@ -346,28 +341,26 @@ static void _zfcp_erp_port_forced_reopen(struct zfcp_port *port,
                 return;
 
         zfcp_erp_action_enqueue(ZFCP_ERP_ACTION_REOPEN_PORT_FORCED,
-                                port->adapter, port, NULL, id, ref, 0);
+                                port->adapter, port, NULL, id, 0);
 }
 
 /**
  * zfcp_erp_port_forced_reopen - Forced close of port and open again
  * @port: Port to force close and to reopen.
+ * @clear: Status flags to clear.
  * @id: Id for debug trace event.
- * @ref: Reference for debug trace event.
  */
-void zfcp_erp_port_forced_reopen(struct zfcp_port *port, int clear, char *id,
-                                 void *ref)
+void zfcp_erp_port_forced_reopen(struct zfcp_port *port, int clear, char *id)
 {
         unsigned long flags;
         struct zfcp_adapter *adapter = port->adapter;
 
         write_lock_irqsave(&adapter->erp_lock, flags);
-        _zfcp_erp_port_forced_reopen(port, clear, id, ref);
+        _zfcp_erp_port_forced_reopen(port, clear, id);
         write_unlock_irqrestore(&adapter->erp_lock, flags);
 }
 
-static int _zfcp_erp_port_reopen(struct zfcp_port *port, int clear, char *id,
-                                 void *ref)
+static int _zfcp_erp_port_reopen(struct zfcp_port *port, int clear, char *id)
 {
         zfcp_erp_port_block(port, clear);
         zfcp_scsi_schedule_rport_block(port);
@@ -379,24 +372,25 @@ static int _zfcp_erp_port_reopen(struct zfcp_port *port, int clear, char *id,
         }
 
         return zfcp_erp_action_enqueue(ZFCP_ERP_ACTION_REOPEN_PORT,
-                                       port->adapter, port, NULL, id, ref, 0);
+                                       port->adapter, port, NULL, id, 0);
 }
 
 /**
  * zfcp_erp_port_reopen - trigger remote port recovery
  * @port: port to recover
  * @clear_mask: flags in port status to be cleared
+ * @id: Id for debug trace event.
  *
  * Returns 0 if recovery has been triggered, < 0 if not.
  */
-int zfcp_erp_port_reopen(struct zfcp_port *port, int clear, char *id, void *ref)
+int zfcp_erp_port_reopen(struct zfcp_port *port, int clear, char *id)
 {
         int retval;
         unsigned long flags;
         struct zfcp_adapter *adapter = port->adapter;
 
         write_lock_irqsave(&adapter->erp_lock, flags);
-        retval = _zfcp_erp_port_reopen(port, clear, id, ref);
+        retval = _zfcp_erp_port_reopen(port, clear, id);
         write_unlock_irqrestore(&adapter->erp_lock, flags);
 
         return retval;
@@ -409,7 +403,7 @@ static void zfcp_erp_lun_block(struct scsi_device *sdev, int clear_mask)
 }
 
 static void _zfcp_erp_lun_reopen(struct scsi_device *sdev, int clear, char *id,
-                                 void *ref, u32 act_status)
+                                 u32 act_status)
 {
         struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev);
         struct zfcp_adapter *adapter = zfcp_sdev->port->adapter;
@@ -420,17 +414,18 @@ static void _zfcp_erp_lun_reopen(struct scsi_device *sdev, int clear, char *id,
                 return;
 
         zfcp_erp_action_enqueue(ZFCP_ERP_ACTION_REOPEN_LUN, adapter,
-                                zfcp_sdev->port, sdev, id, ref, act_status);
+                                zfcp_sdev->port, sdev, id, act_status);
 }
 
 /**
  * zfcp_erp_lun_reopen - initiate reopen of a LUN
  * @sdev: SCSI device / LUN to be reopened
  * @clear_mask: specifies flags in LUN status to be cleared
+ * @id: Id for debug trace event.
+ *
  * Return: 0 on success, < 0 on error
  */
-void zfcp_erp_lun_reopen(struct scsi_device *sdev, int clear, char *id,
-                         void *ref)
+void zfcp_erp_lun_reopen(struct scsi_device *sdev, int clear, char *id)
 {
         unsigned long flags;
         struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev);
@@ -438,7 +433,7 @@ void zfcp_erp_lun_reopen(struct scsi_device *sdev, int clear, char *id,
         struct zfcp_adapter *adapter = port->adapter;
 
         write_lock_irqsave(&adapter->erp_lock, flags);
-        _zfcp_erp_lun_reopen(sdev, clear, id, ref, 0);
+        _zfcp_erp_lun_reopen(sdev, clear, id, 0);
         write_unlock_irqrestore(&adapter->erp_lock, flags);
 }
 
@@ -447,13 +442,11 @@ void zfcp_erp_lun_reopen(struct scsi_device *sdev, int clear, char *id,
  * @sdev: SCSI device / LUN to shut down.
  * @clear: Status flags to clear.
  * @id: Id for debug trace event.
- * @ref: Reference for debug trace event.
  */
-void zfcp_erp_lun_shutdown(struct scsi_device *sdev, int clear, char *id,
-                           void *ref)
+void zfcp_erp_lun_shutdown(struct scsi_device *sdev, int clear, char *id)
 {
         int flags = ZFCP_STATUS_COMMON_RUNNING | ZFCP_STATUS_COMMON_ERP_FAILED;
-        zfcp_erp_lun_reopen(sdev, clear | flags, id, ref);
+        zfcp_erp_lun_reopen(sdev, clear | flags, id);
 }
 
 /**
@@ -475,7 +468,7 @@ void zfcp_erp_lun_shutdown_wait(struct scsi_device *sdev, char *id)
         int clear = ZFCP_STATUS_COMMON_RUNNING | ZFCP_STATUS_COMMON_ERP_FAILED;
 
         write_lock_irqsave(&adapter->erp_lock, flags);
-        _zfcp_erp_lun_reopen(sdev, clear, id, NULL, ZFCP_STATUS_ERP_NO_REF);
+        _zfcp_erp_lun_reopen(sdev, clear, id, ZFCP_STATUS_ERP_NO_REF);
         write_unlock_irqrestore(&adapter->erp_lock, flags);
 
         zfcp_erp_wait(adapter);
@@ -584,40 +577,40 @@ static void zfcp_erp_strategy_memwait(struct zfcp_erp_action *erp_action)
 }
 
 static void _zfcp_erp_port_reopen_all(struct zfcp_adapter *adapter,
-                                      int clear, char *id, void *ref)
+                                      int clear, char *id)
 {
         struct zfcp_port *port;
 
         read_lock(&adapter->port_list_lock);
         list_for_each_entry(port, &adapter->port_list, list)
-                _zfcp_erp_port_reopen(port, clear, id, ref);
+                _zfcp_erp_port_reopen(port, clear, id);
         read_unlock(&adapter->port_list_lock);
 }
 
 static void _zfcp_erp_lun_reopen_all(struct zfcp_port *port, int clear,
-                                     char *id, void *ref)
+                                     char *id)
 {
         struct scsi_device *sdev;
 
         shost_for_each_device(sdev, port->adapter->scsi_host)
                 if (sdev_to_zfcp(sdev)->port == port)
-                        _zfcp_erp_lun_reopen(sdev, clear, id, ref, 0);
+                        _zfcp_erp_lun_reopen(sdev, clear, id, 0);
 }
 
 static void zfcp_erp_strategy_followup_failed(struct zfcp_erp_action *act)
 {
         switch (act->action) {
         case ZFCP_ERP_ACTION_REOPEN_ADAPTER:
-                _zfcp_erp_adapter_reopen(act->adapter, 0, "ersff_1", NULL);
+                _zfcp_erp_adapter_reopen(act->adapter, 0, "ersff_1");
                 break;
         case ZFCP_ERP_ACTION_REOPEN_PORT_FORCED:
-                _zfcp_erp_port_forced_reopen(act->port, 0, "ersff_2", NULL);
+                _zfcp_erp_port_forced_reopen(act->port, 0, "ersff_2");
                 break;
         case ZFCP_ERP_ACTION_REOPEN_PORT:
-                _zfcp_erp_port_reopen(act->port, 0, "ersff_3", NULL);
+                _zfcp_erp_port_reopen(act->port, 0, "ersff_3");
                 break;
         case ZFCP_ERP_ACTION_REOPEN_LUN:
-                _zfcp_erp_lun_reopen(act->sdev, 0, "ersff_4", NULL, 0);
+                _zfcp_erp_lun_reopen(act->sdev, 0, "ersff_4", 0);
                 break;
         }
 }
@@ -626,13 +619,13 @@ static void zfcp_erp_strategy_followup_success(struct zfcp_erp_action *act)
 {
         switch (act->action) {
         case ZFCP_ERP_ACTION_REOPEN_ADAPTER:
-                _zfcp_erp_port_reopen_all(act->adapter, 0, "ersfs_1", NULL);
+                _zfcp_erp_port_reopen_all(act->adapter, 0, "ersfs_1");
                 break;
         case ZFCP_ERP_ACTION_REOPEN_PORT_FORCED:
-                _zfcp_erp_port_reopen(act->port, 0, "ersfs_2", NULL);
+                _zfcp_erp_port_reopen(act->port, 0, "ersfs_2");
                 break;
         case ZFCP_ERP_ACTION_REOPEN_PORT:
-                _zfcp_erp_lun_reopen_all(act->port, 0, "ersfs_3", NULL);
+                _zfcp_erp_lun_reopen_all(act->port, 0, "ersfs_3");
                 break;
         }
 }
@@ -669,7 +662,7 @@ static void zfcp_erp_enqueue_ptp_port(struct zfcp_adapter *adapter)
                                  adapter->peer_d_id);
         if (IS_ERR(port)) /* error or port already attached */
                 return;
-        _zfcp_erp_port_reopen(port, 0, "ereptp1", NULL);
+        _zfcp_erp_port_reopen(port, 0, "ereptp1");
 }
 
 static int zfcp_erp_adapter_strat_fsf_xconf(struct zfcp_erp_action *erp_action)
@@ -1163,7 +1156,7 @@ static int zfcp_erp_strategy_statechange(struct zfcp_erp_action *act, int ret)
                 if (zfcp_erp_strat_change_det(&adapter->status, erp_status)) {
                         _zfcp_erp_adapter_reopen(adapter,
                                                  ZFCP_STATUS_COMMON_ERP_FAILED,
-                                                 "ersscg1", NULL);
+                                                 "ersscg1");
                         return ZFCP_ERP_EXIT;
                 }
                 break;
@@ -1173,7 +1166,7 @@ static int zfcp_erp_strategy_statechange(struct zfcp_erp_action *act, int ret)
                 if (zfcp_erp_strat_change_det(&port->status, erp_status)) {
                         _zfcp_erp_port_reopen(port,
                                               ZFCP_STATUS_COMMON_ERP_FAILED,
-                                              "ersscg2", NULL);
+                                              "ersscg2");
                         return ZFCP_ERP_EXIT;
                 }
                 break;
@@ -1183,7 +1176,7 @@ static int zfcp_erp_strategy_statechange(struct zfcp_erp_action *act, int ret)
                 if (zfcp_erp_strat_change_det(&zfcp_sdev->status, erp_status)) {
                         _zfcp_erp_lun_reopen(sdev,
                                              ZFCP_STATUS_COMMON_ERP_FAILED,
-                                             "ersscg3", NULL, 0);
+                                             "ersscg3", 0);
                         return ZFCP_ERP_EXIT;
                 }
                 break;
@@ -1310,7 +1303,7 @@ static int zfcp_erp_strategy(struct zfcp_erp_action *erp_action)
                         erp_action->status |= ZFCP_STATUS_ERP_LOWMEM;
                 }
                 if (adapter->erp_total_count == adapter->erp_low_mem_count)
-                        _zfcp_erp_adapter_reopen(adapter, 0, "erstgy1", NULL);
+                        _zfcp_erp_adapter_reopen(adapter, 0, "erstgy1");
                 else {
                         zfcp_erp_strategy_memwait(erp_action);
                         retval = ZFCP_ERP_CONTINUES;
diff --git a/drivers/s390/scsi/zfcp_ext.h b/drivers/s390/scsi/zfcp_ext.h
index b68a546275a5..6e325284fbe7 100644
--- a/drivers/s390/scsi/zfcp_ext.h
+++ b/drivers/s390/scsi/zfcp_ext.h
@@ -45,7 +45,7 @@ extern void zfcp_cfdc_adapter_access_changed(struct zfcp_adapter *);
 
 /* zfcp_dbf.c */
 extern int zfcp_dbf_adapter_register(struct zfcp_adapter *);
-extern void zfcp_dbf_adapter_unregister(struct zfcp_dbf *);
+extern void zfcp_dbf_adapter_unregister(struct zfcp_adapter *);
 extern void zfcp_dbf_rec_trig(char *, struct zfcp_adapter *,
                               struct zfcp_port *, struct scsi_device *, u8, u8);
 extern void zfcp_dbf_rec_run(char *, struct zfcp_erp_action *);
@@ -61,19 +61,17 @@ extern void zfcp_dbf_scsi(char *, struct scsi_cmnd *, struct zfcp_fsf_req *);
 /* zfcp_erp.c */
 extern void zfcp_erp_set_adapter_status(struct zfcp_adapter *, u32);
 extern void zfcp_erp_clear_adapter_status(struct zfcp_adapter *, u32);
-extern void zfcp_erp_adapter_reopen(struct zfcp_adapter *, int, char *, void *);
-extern void zfcp_erp_adapter_shutdown(struct zfcp_adapter *, int, char *,
-                                      void *);
+extern void zfcp_erp_adapter_reopen(struct zfcp_adapter *, int, char *);
+extern void zfcp_erp_adapter_shutdown(struct zfcp_adapter *, int, char *);
 extern void zfcp_erp_set_port_status(struct zfcp_port *, u32);
 extern void zfcp_erp_clear_port_status(struct zfcp_port *, u32);
-extern int  zfcp_erp_port_reopen(struct zfcp_port *, int, char *, void *);
-extern void zfcp_erp_port_shutdown(struct zfcp_port *, int, char *, void *);
-extern void zfcp_erp_port_forced_reopen(struct zfcp_port *, int, char *,
-                                        void *);
+extern int  zfcp_erp_port_reopen(struct zfcp_port *, int, char *);
+extern void zfcp_erp_port_shutdown(struct zfcp_port *, int, char *);
+extern void zfcp_erp_port_forced_reopen(struct zfcp_port *, int, char *);
 extern void zfcp_erp_set_lun_status(struct scsi_device *, u32);
 extern void zfcp_erp_clear_lun_status(struct scsi_device *, u32);
-extern void zfcp_erp_lun_reopen(struct scsi_device *, int, char *, void *);
-extern void zfcp_erp_lun_shutdown(struct scsi_device *, int, char *, void *);
+extern void zfcp_erp_lun_reopen(struct scsi_device *, int, char *);
+extern void zfcp_erp_lun_shutdown(struct scsi_device *, int, char *);
 extern void zfcp_erp_lun_shutdown_wait(struct scsi_device *, char *);
 extern int  zfcp_erp_thread_setup(struct zfcp_adapter *);
 extern void zfcp_erp_thread_kill(struct zfcp_adapter *);
diff --git a/drivers/s390/scsi/zfcp_fc.c b/drivers/s390/scsi/zfcp_fc.c
index 7d44d9c59bdc..30cf91a787a3 100644
--- a/drivers/s390/scsi/zfcp_fc.c
+++ b/drivers/s390/scsi/zfcp_fc.c
@@ -174,7 +174,7 @@ static void _zfcp_fc_incoming_rscn(struct zfcp_fsf_req *fsf_req, u32 range,
                 if (!port->d_id)
                         zfcp_erp_port_reopen(port,
                                              ZFCP_STATUS_COMMON_ERP_FAILED,
-                                             "fcrscn1", NULL);
+                                             "fcrscn1");
         }
         read_unlock_irqrestore(&adapter->port_list_lock, flags);
 }
@@ -215,7 +215,7 @@ static void zfcp_fc_incoming_wwpn(struct zfcp_fsf_req *req, u64 wwpn)
         read_lock_irqsave(&adapter->port_list_lock, flags);
         list_for_each_entry(port, &adapter->port_list, list)
                 if (port->wwpn == wwpn) {
-                        zfcp_erp_port_forced_reopen(port, 0, "fciwwp1", req);
+                        zfcp_erp_port_forced_reopen(port, 0, "fciwwp1");
                         break;
                 }
         read_unlock_irqrestore(&adapter->port_list_lock, flags);
@@ -360,7 +360,7 @@ void zfcp_fc_port_did_lookup(struct work_struct *work)
         ret = zfcp_fc_ns_gid_pn(port);
         if (ret) {
                 /* could not issue gid_pn for some reason */
-                zfcp_erp_adapter_reopen(port->adapter, 0, "fcgpn_1", NULL);
+                zfcp_erp_adapter_reopen(port->adapter, 0, "fcgpn_1");
                 goto out;
         }
 
@@ -369,7 +369,7 @@ void zfcp_fc_port_did_lookup(struct work_struct *work)
                 goto out;
         }
 
-        zfcp_erp_port_reopen(port, 0, "fcgpn_3", NULL);
+        zfcp_erp_port_reopen(port, 0, "fcgpn_3");
 out:
         put_device(&port->dev);
 }
@@ -426,7 +426,7 @@ static void zfcp_fc_adisc_handler(void *data)
         if (adisc->els.status) {
                 /* request rejected or timed out */
                 zfcp_erp_port_forced_reopen(port, ZFCP_STATUS_COMMON_ERP_FAILED,
-                                            "fcadh_1", NULL);
+                                            "fcadh_1");
                 goto out;
         }
 
@@ -436,7 +436,7 @@ static void zfcp_fc_adisc_handler(void *data)
         if ((port->wwpn != adisc_resp->adisc_wwpn) ||
             !(atomic_read(&port->status) & ZFCP_STATUS_COMMON_OPEN)) {
                 zfcp_erp_port_reopen(port, ZFCP_STATUS_COMMON_ERP_FAILED,
-                                     "fcadh_2", NULL);
+                                     "fcadh_2");
                 goto out;
         }
 
@@ -507,7 +507,7 @@ void zfcp_fc_link_test_work(struct work_struct *work)
 
         /* send of ADISC was not possible */
         atomic_clear_mask(ZFCP_STATUS_PORT_LINK_TEST, &port->status);
-        zfcp_erp_port_forced_reopen(port, 0, "fcltwk1", NULL);
+        zfcp_erp_port_forced_reopen(port, 0, "fcltwk1");
 
 out:
         put_device(&port->dev);
@@ -659,7 +659,7 @@ static int zfcp_fc_eval_gpn_ft(struct zfcp_fc_gpn_ft *gpn_ft,
                 port = zfcp_port_enqueue(adapter, acc->fp_wwpn,
                                          ZFCP_STATUS_COMMON_NOESC, d_id);
                 if (!IS_ERR(port))
-                        zfcp_erp_port_reopen(port, 0, "fcegpf1", NULL);
+                        zfcp_erp_port_reopen(port, 0, "fcegpf1");
                 else if (PTR_ERR(port) != -EEXIST)
                         ret = PTR_ERR(port);
         }
@@ -671,7 +671,7 @@ static int zfcp_fc_eval_gpn_ft(struct zfcp_fc_gpn_ft *gpn_ft,
         write_unlock_irqrestore(&adapter->port_list_lock, flags);
 
         list_for_each_entry_safe(port, tmp, &remove_lh, list) {
-                zfcp_erp_port_shutdown(port, 0, "fcegpf2", NULL);
+                zfcp_erp_port_shutdown(port, 0, "fcegpf2");
                 zfcp_device_unregister(&port->dev, &zfcp_sysfs_port_attrs);
         }
 
diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c
index 5bb118e01f36..60ff9d172c79 100644
--- a/drivers/s390/scsi/zfcp_fsf.c
+++ b/drivers/s390/scsi/zfcp_fsf.c
@@ -23,7 +23,7 @@ static void zfcp_fsf_request_timeout_handler(unsigned long data)
         struct zfcp_adapter *adapter = (struct zfcp_adapter *) data;
         zfcp_qdio_siosl(adapter);
         zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED,
-                                "fsrth_1", NULL);
+                                "fsrth_1");
 }
 
 static void zfcp_fsf_start_timer(struct zfcp_fsf_req *fsf_req,
@@ -65,7 +65,7 @@ static void zfcp_fsf_class_not_supp(struct zfcp_fsf_req *req)
 {
         dev_err(&req->adapter->ccw_device->dev, "FCP device not "
                 "operational because of an unsupported FC class\n");
-        zfcp_erp_adapter_shutdown(req->adapter, 0, "fscns_1", req);
+        zfcp_erp_adapter_shutdown(req->adapter, 0, "fscns_1");
         req->status |= ZFCP_STATUS_FSFREQ_ERROR;
 }
 
@@ -98,7 +98,7 @@ static void zfcp_fsf_status_read_port_closed(struct zfcp_fsf_req *req)
         read_lock_irqsave(&adapter->port_list_lock, flags);
         list_for_each_entry(port, &adapter->port_list, list)
                 if (port->d_id == d_id) {
-                        zfcp_erp_port_reopen(port, 0, "fssrpc1", req);
+                        zfcp_erp_port_reopen(port, 0, "fssrpc1");
                         break;
                 }
         read_unlock_irqrestore(&adapter->port_list_lock, flags);
@@ -247,7 +247,7 @@ static void zfcp_fsf_status_read_handler(struct zfcp_fsf_req *req)
                 zfcp_erp_adapter_reopen(adapter,
                                         ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED |
                                         ZFCP_STATUS_COMMON_ERP_FAILED,
-                                        "fssrh_2", req);
+                                        "fssrh_2");
                 zfcp_fc_enqueue_event(adapter, FCH_EVT_LINKUP, 0);
 
                 break;
@@ -287,7 +287,7 @@ static void zfcp_fsf_fsfstatus_qual_eval(struct zfcp_fsf_req *req)
                         "The FCP adapter reported a problem "
                         "that cannot be recovered\n");
                 zfcp_qdio_siosl(req->adapter);
-                zfcp_erp_adapter_shutdown(req->adapter, 0, "fsfsqe1", req);
+                zfcp_erp_adapter_shutdown(req->adapter, 0, "fsfsqe1");
                 break;
         }
         /* all non-return stats set FSFREQ_ERROR*/
@@ -304,7 +304,7 @@ static void zfcp_fsf_fsfstatus_eval(struct zfcp_fsf_req *req)
                 dev_err(&req->adapter->ccw_device->dev,
                         "The FCP adapter does not recognize the command 0x%x\n",
                         req->qtcb->header.fsf_command);
-                zfcp_erp_adapter_shutdown(req->adapter, 0, "fsfse_1", req);
+                zfcp_erp_adapter_shutdown(req->adapter, 0, "fsfse_1");
                 req->status |= ZFCP_STATUS_FSFREQ_ERROR;
                 break;
         case FSF_ADAPTER_STATUS_AVAILABLE:
@@ -335,17 +335,17 @@ static void zfcp_fsf_protstatus_eval(struct zfcp_fsf_req *req)
                         "QTCB version 0x%x not supported by FCP adapter "
                         "(0x%x to 0x%x)\n", FSF_QTCB_CURRENT_VERSION,
                         psq->word[0], psq->word[1]);
-                zfcp_erp_adapter_shutdown(adapter, 0, "fspse_1", req);
+                zfcp_erp_adapter_shutdown(adapter, 0, "fspse_1");
                 break;
         case FSF_PROT_ERROR_STATE:
         case FSF_PROT_SEQ_NUMB_ERROR:
-                zfcp_erp_adapter_reopen(adapter, 0, "fspse_2", req);
+                zfcp_erp_adapter_reopen(adapter, 0, "fspse_2");
                 req->status |= ZFCP_STATUS_FSFREQ_ERROR;
                 break;
         case FSF_PROT_UNSUPP_QTCB_TYPE:
                 dev_err(&adapter->ccw_device->dev,
                         "The QTCB type is not supported by the FCP adapter\n");
-                zfcp_erp_adapter_shutdown(adapter, 0, "fspse_3", req);
+                zfcp_erp_adapter_shutdown(adapter, 0, "fspse_3");
                 break;
         case FSF_PROT_HOST_CONNECTION_INITIALIZING:
                 atomic_set_mask(ZFCP_STATUS_ADAPTER_HOST_CON_INIT,
@@ -355,12 +355,12 @@ static void zfcp_fsf_protstatus_eval(struct zfcp_fsf_req *req)
                 dev_err(&adapter->ccw_device->dev,
                         "0x%Lx is an ambiguous request identifier\n",
                         (unsigned long long)qtcb->bottom.support.req_handle);
-                zfcp_erp_adapter_shutdown(adapter, 0, "fspse_4", req);
+                zfcp_erp_adapter_shutdown(adapter, 0, "fspse_4");
                 break;
         case FSF_PROT_LINK_DOWN:
                 zfcp_fsf_link_down_info_eval(req, &psq->link_down_info);
                 /* go through reopen to flush pending requests */
-                zfcp_erp_adapter_reopen(adapter, 0, "fspse_6", req);
+                zfcp_erp_adapter_reopen(adapter, 0, "fspse_6");
                 break;
         case FSF_PROT_REEST_QUEUE:
                 /* All ports should be marked as ready to run again */
@@ -369,14 +369,14 @@ static void zfcp_fsf_protstatus_eval(struct zfcp_fsf_req *req)
                 zfcp_erp_adapter_reopen(adapter,
                                         ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED |
                                         ZFCP_STATUS_COMMON_ERP_FAILED,
-                                        "fspse_8", req);
+                                        "fspse_8");
                 break;
         default:
                 dev_err(&adapter->ccw_device->dev,
                         "0x%x is not a valid transfer protocol status\n",
                         qtcb->prefix.prot_status);
                 zfcp_qdio_siosl(adapter);
-                zfcp_erp_adapter_shutdown(adapter, 0, "fspse_9", req);
+                zfcp_erp_adapter_shutdown(adapter, 0, "fspse_9");
         }
         req->status |= ZFCP_STATUS_FSFREQ_ERROR;
 }
@@ -482,7 +482,7 @@ static int zfcp_fsf_exchange_config_evaluate(struct zfcp_fsf_req *req)
                 dev_err(&adapter->ccw_device->dev,
                         "Unknown or unsupported arbitrated loop "
                         "fibre channel topology detected\n");
-                zfcp_erp_adapter_shutdown(adapter, 0, "fsece_1", req);
+                zfcp_erp_adapter_shutdown(adapter, 0, "fsece_1");
                 return -EIO;
         }
 
@@ -518,7 +518,7 @@ static void zfcp_fsf_exchange_config_data_handler(struct zfcp_fsf_req *req)
                                 "FCP adapter maximum QTCB size (%d bytes) "
                                 "is too small\n",
                                 bottom->max_qtcb_size);
-                        zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh1", req);
+                        zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh1");
                         return;
                 }
                 atomic_set_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK,
@@ -536,7 +536,7 @@ static void zfcp_fsf_exchange_config_data_handler(struct zfcp_fsf_req *req)
                         &qtcb->header.fsf_status_qual.link_down_info);
                 break;
         default:
-                zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh3", req);
+                zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh3");
                 return;
         }
 
@@ -552,14 +552,14 @@ static void zfcp_fsf_exchange_config_data_handler(struct zfcp_fsf_req *req)
                 dev_err(&adapter->ccw_device->dev,
                         "The FCP adapter only supports newer "
                         "control block versions\n");
-                zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh4", req);
+                zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh4");
                 return;
         }
         if (FSF_QTCB_CURRENT_VERSION > bottom->high_qtcb_version) {
                 dev_err(&adapter->ccw_device->dev,
                         "The FCP adapter only supports older "
                         "control block versions\n");
-                zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh5", req);
+                zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh5");
         }
 }
 
@@ -700,7 +700,7 @@ static int zfcp_fsf_req_send(struct zfcp_fsf_req *req)
                 del_timer(&req->timer);
                 /* lookup request again, list might have changed */
                 zfcp_reqlist_find_rm(adapter->req_list, req_id);
-                zfcp_erp_adapter_reopen(adapter, 0, "fsrs__1", req);
+                zfcp_erp_adapter_reopen(adapter, 0, "fsrs__1");
                 return -EIO;
         }
 
@@ -777,14 +777,13 @@ static void zfcp_fsf_abort_fcp_command_handler(struct zfcp_fsf_req *req)
         case FSF_PORT_HANDLE_NOT_VALID:
                 if (fsq->word[0] == fsq->word[1]) {
                         zfcp_erp_adapter_reopen(zfcp_sdev->port->adapter, 0,
-                                                "fsafch1", req);
+                                                "fsafch1");
                         req->status |= ZFCP_STATUS_FSFREQ_ERROR;
                 }
                 break;
         case FSF_LUN_HANDLE_NOT_VALID:
                 if (fsq->word[0] == fsq->word[1]) {
-                        zfcp_erp_port_reopen(zfcp_sdev->port, 0, "fsafch2",
-                                             req);
+                        zfcp_erp_port_reopen(zfcp_sdev->port, 0, "fsafch2");
                         req->status |= ZFCP_STATUS_FSFREQ_ERROR;
                 }
                 break;
@@ -795,14 +794,13 @@ static void zfcp_fsf_abort_fcp_command_handler(struct zfcp_fsf_req *req)
                 zfcp_erp_set_port_status(zfcp_sdev->port,
                                          ZFCP_STATUS_COMMON_ACCESS_BOXED);
                 zfcp_erp_port_reopen(zfcp_sdev->port,
-                                     ZFCP_STATUS_COMMON_ERP_FAILED, "fsafch3",
-                                     req);
+                                     ZFCP_STATUS_COMMON_ERP_FAILED, "fsafch3");
                 req->status |= ZFCP_STATUS_FSFREQ_ERROR;
                 break;
         case FSF_LUN_BOXED:
                 zfcp_erp_set_lun_status(sdev, ZFCP_STATUS_COMMON_ACCESS_BOXED);
                 zfcp_erp_lun_reopen(sdev, ZFCP_STATUS_COMMON_ERP_FAILED,
-                                    "fsafch4", req);
+                                    "fsafch4");
                 req->status |= ZFCP_STATUS_FSFREQ_ERROR;
                 break;
         case FSF_ADAPTER_STATUS_AVAILABLE:
@@ -903,7 +901,7 @@ static void zfcp_fsf_send_ct_handler(struct zfcp_fsf_req *req)
                 req->status |= ZFCP_STATUS_FSFREQ_ERROR;
                 break;
         case FSF_PORT_HANDLE_NOT_VALID:
-                zfcp_erp_adapter_reopen(adapter, 0, "fsscth1", req);
+                zfcp_erp_adapter_reopen(adapter, 0, "fsscth1");
                 /* fall through */
         case FSF_GENERIC_COMMAND_REJECTED:
         case FSF_PAYLOAD_SIZE_MISMATCH:
@@ -1449,7 +1447,7 @@ static void zfcp_fsf_close_port_handler(struct zfcp_fsf_req *req)
 
         switch (req->qtcb->header.fsf_status) {
         case FSF_PORT_HANDLE_NOT_VALID:
-                zfcp_erp_adapter_reopen(port->adapter, 0, "fscph_1", req);
+                zfcp_erp_adapter_reopen(port->adapter, 0, "fscph_1");
                 req->status |= ZFCP_STATUS_FSFREQ_ERROR;
                 break;
         case FSF_ADAPTER_STATUS_AVAILABLE:
@@ -1581,7 +1579,7 @@ static void zfcp_fsf_close_wka_port_handler(struct zfcp_fsf_req *req)
 
         if (req->qtcb->header.fsf_status == FSF_PORT_HANDLE_NOT_VALID) {
                 req->status |= ZFCP_STATUS_FSFREQ_ERROR;
-                zfcp_erp_adapter_reopen(wka_port->adapter, 0, "fscwph1", req);
+                zfcp_erp_adapter_reopen(wka_port->adapter, 0, "fscwph1");
         }
 
         wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE;
@@ -1639,7 +1637,7 @@ static void zfcp_fsf_close_physical_port_handler(struct zfcp_fsf_req *req)
 
         switch (header->fsf_status) {
         case FSF_PORT_HANDLE_NOT_VALID:
-                zfcp_erp_adapter_reopen(port->adapter, 0, "fscpph1", req);
+                zfcp_erp_adapter_reopen(port->adapter, 0, "fscpph1");
                 req->status |= ZFCP_STATUS_FSFREQ_ERROR;
                 break;
         case FSF_ACCESS_DENIED:
@@ -1655,7 +1653,7 @@ static void zfcp_fsf_close_physical_port_handler(struct zfcp_fsf_req *req)
                                                   &sdev_to_zfcp(sdev)->status);
                 zfcp_erp_set_port_status(port, ZFCP_STATUS_COMMON_ACCESS_BOXED);
                 zfcp_erp_port_reopen(port, ZFCP_STATUS_COMMON_ERP_FAILED,
-                                     "fscpph2", req);
+                                     "fscpph2");
                 req->status |= ZFCP_STATUS_FSFREQ_ERROR;
                 break;
         case FSF_ADAPTER_STATUS_AVAILABLE:
@@ -1744,7 +1742,7 @@ static void zfcp_fsf_open_lun_handler(struct zfcp_fsf_req *req)
         switch (header->fsf_status) {
 
         case FSF_PORT_HANDLE_NOT_VALID:
-                zfcp_erp_adapter_reopen(adapter, 0, "fsouh_1", req);
+                zfcp_erp_adapter_reopen(adapter, 0, "fsouh_1");
                 /* fall through */
         case FSF_LUN_ALREADY_OPEN:
                 break;
@@ -1756,8 +1754,7 @@ static void zfcp_fsf_open_lun_handler(struct zfcp_fsf_req *req)
                 zfcp_erp_set_port_status(zfcp_sdev->port,
                                          ZFCP_STATUS_COMMON_ACCESS_BOXED);
                 zfcp_erp_port_reopen(zfcp_sdev->port,
-                                     ZFCP_STATUS_COMMON_ERP_FAILED, "fsouh_2",
-                                     req);
+                                     ZFCP_STATUS_COMMON_ERP_FAILED, "fsouh_2");
                 req->status |= ZFCP_STATUS_FSFREQ_ERROR;
                 break;
         case FSF_LUN_SHARING_VIOLATION:
@@ -1853,20 +1850,18 @@ static void zfcp_fsf_close_lun_handler(struct zfcp_fsf_req *req)
 
         switch (req->qtcb->header.fsf_status) {
         case FSF_PORT_HANDLE_NOT_VALID:
-                zfcp_erp_adapter_reopen(zfcp_sdev->port->adapter, 0, "fscuh_1",
-                                        req);
+                zfcp_erp_adapter_reopen(zfcp_sdev->port->adapter, 0, "fscuh_1");
                 req->status |= ZFCP_STATUS_FSFREQ_ERROR;
                 break;
         case FSF_LUN_HANDLE_NOT_VALID:
-                zfcp_erp_port_reopen(zfcp_sdev->port, 0, "fscuh_2", req);
+                zfcp_erp_port_reopen(zfcp_sdev->port, 0, "fscuh_2");
                 req->status |= ZFCP_STATUS_FSFREQ_ERROR;
                 break;
         case FSF_PORT_BOXED:
                 zfcp_erp_set_port_status(zfcp_sdev->port,
                                          ZFCP_STATUS_COMMON_ACCESS_BOXED);
                 zfcp_erp_port_reopen(zfcp_sdev->port,
-                                     ZFCP_STATUS_COMMON_ERP_FAILED, "fscuh_3",
-                                     req);
+                                     ZFCP_STATUS_COMMON_ERP_FAILED, "fscuh_3");
                 req->status |= ZFCP_STATUS_FSFREQ_ERROR;
                 break;
         case FSF_ADAPTER_STATUS_AVAILABLE:
@@ -2003,13 +1998,12 @@ static void zfcp_fsf_fcp_handler_common(struct zfcp_fsf_req *req)
         switch (header->fsf_status) {
         case FSF_HANDLE_MISMATCH:
         case FSF_PORT_HANDLE_NOT_VALID:
-                zfcp_erp_adapter_reopen(zfcp_sdev->port->adapter, 0, "fssfch1",
-                                        req);
+                zfcp_erp_adapter_reopen(zfcp_sdev->port->adapter, 0, "fssfch1");
                 req->status |= ZFCP_STATUS_FSFREQ_ERROR;
                 break;
         case FSF_FCPLUN_NOT_VALID:
         case FSF_LUN_HANDLE_NOT_VALID:
-                zfcp_erp_port_reopen(zfcp_sdev->port, 0, "fssfch2", req);
+                zfcp_erp_port_reopen(zfcp_sdev->port, 0, "fssfch2");
                 req->status |= ZFCP_STATUS_FSFREQ_ERROR;
                 break;
         case FSF_SERVICE_CLASS_NOT_SUPPORTED:
@@ -2027,7 +2021,7 @@ static void zfcp_fsf_fcp_handler_common(struct zfcp_fsf_req *req)
                         (unsigned long long)zfcp_scsi_dev_lun(sdev),
                         (unsigned long long)zfcp_sdev->port->wwpn);
                 zfcp_erp_adapter_shutdown(zfcp_sdev->port->adapter, 0,
-                                          "fssfch3", req);
+                                          "fssfch3");
                 req->status |= ZFCP_STATUS_FSFREQ_ERROR;
                 break;
         case FSF_CMND_LENGTH_NOT_VALID:
@@ -2038,21 +2032,20 @@ static void zfcp_fsf_fcp_handler_common(struct zfcp_fsf_req *req)
                         (unsigned long long)zfcp_scsi_dev_lun(sdev),
                         (unsigned long long)zfcp_sdev->port->wwpn);
                 zfcp_erp_adapter_shutdown(zfcp_sdev->port->adapter, 0,
-                                          "fssfch4", req);
+                                          "fssfch4");
                 req->status |= ZFCP_STATUS_FSFREQ_ERROR;
                 break;
         case FSF_PORT_BOXED:
                 zfcp_erp_set_port_status(zfcp_sdev->port,
                                          ZFCP_STATUS_COMMON_ACCESS_BOXED);
                 zfcp_erp_port_reopen(zfcp_sdev->port,
-                                     ZFCP_STATUS_COMMON_ERP_FAILED, "fssfch5",
-                                     req);
+                                     ZFCP_STATUS_COMMON_ERP_FAILED, "fssfch5");
                 req->status |= ZFCP_STATUS_FSFREQ_ERROR;
                 break;
         case FSF_LUN_BOXED:
                 zfcp_erp_set_lun_status(sdev, ZFCP_STATUS_COMMON_ACCESS_BOXED);
                 zfcp_erp_lun_reopen(sdev, ZFCP_STATUS_COMMON_ERP_FAILED,
-                                    "fssfch6", req);
+                                    "fssfch6");
                 req->status |= ZFCP_STATUS_FSFREQ_ERROR;
                 break;
         case FSF_ADAPTER_STATUS_AVAILABLE:
diff --git a/drivers/s390/scsi/zfcp_qdio.c b/drivers/s390/scsi/zfcp_qdio.c
index 434a33ba0509..d99c9dc9cfcb 100644
--- a/drivers/s390/scsi/zfcp_qdio.c
+++ b/drivers/s390/scsi/zfcp_qdio.c
@@ -41,7 +41,7 @@ static void zfcp_qdio_handler_error(struct zfcp_qdio *qdio, char *id,
                 zfcp_qdio_siosl(adapter);
         zfcp_erp_adapter_reopen(adapter,
                                 ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED |
-                                ZFCP_STATUS_COMMON_ERP_FAILED, id, NULL);
+                                ZFCP_STATUS_COMMON_ERP_FAILED, id);
 }
 
 static void zfcp_qdio_zero_sbals(struct qdio_buffer *sbal[], int first, int cnt)
@@ -114,7 +114,7 @@ static void zfcp_qdio_int_resp(struct ccw_device *cdev, unsigned int qdio_err,
          * put SBALs back to response queue
          */
         if (do_QDIO(cdev, QDIO_FLAG_SYNC_INPUT, 0, idx, count))
-                zfcp_erp_adapter_reopen(qdio->adapter, 0, "qdires2", NULL);
+                zfcp_erp_adapter_reopen(qdio->adapter, 0, "qdires2");
 }
 
 static struct qdio_buffer_element *
@@ -234,7 +234,7 @@ int zfcp_qdio_sbal_get(struct zfcp_qdio *qdio)
         if (!ret) {
                 atomic_inc(&qdio->req_q_full);
                 /* assume hanging outbound queue, try queue recovery */
-                zfcp_erp_adapter_reopen(qdio->adapter, 0, "qdsbg_1", NULL);
+                zfcp_erp_adapter_reopen(qdio->adapter, 0, "qdsbg_1");
         }
 
         spin_lock_irq(&qdio->req_q_lock);
diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c
index 8c5c1c89c098..59a653d15a19 100644
--- a/drivers/s390/scsi/zfcp_scsi.c
+++ b/drivers/s390/scsi/zfcp_scsi.c
@@ -154,7 +154,7 @@ static int zfcp_scsi_slave_alloc(struct scsi_device *sdev)
         spin_lock_init(&zfcp_sdev->latencies.lock);
 
         zfcp_erp_set_lun_status(sdev, ZFCP_STATUS_COMMON_RUNNING);
-        zfcp_erp_lun_reopen(sdev, 0, "scsla_1", NULL);
+        zfcp_erp_lun_reopen(sdev, 0, "scsla_1");
         zfcp_erp_wait(port->adapter);
 
         return 0;
@@ -278,7 +278,7 @@ static int zfcp_scsi_eh_host_reset_handler(struct scsi_cmnd *scpnt)
         struct zfcp_adapter *adapter = zfcp_sdev->port->adapter;
         int ret;
 
-        zfcp_erp_adapter_reopen(adapter, 0, "schrh_1", scpnt);
+        zfcp_erp_adapter_reopen(adapter, 0, "schrh_1");
         zfcp_erp_wait(adapter);
         ret = fc_block_scsi_eh(scpnt);
         if (ret)
@@ -516,7 +516,7 @@ static void zfcp_scsi_terminate_rport_io(struct fc_rport *rport)
         port = zfcp_get_port_by_wwpn(adapter, rport->port_name);
 
         if (port) {
-                zfcp_erp_port_forced_reopen(port, 0, "sctrpi1", NULL);
+                zfcp_erp_port_forced_reopen(port, 0, "sctrpi1");
                 put_device(&port->dev);
         }
 }
diff --git a/drivers/s390/scsi/zfcp_sysfs.c b/drivers/s390/scsi/zfcp_sysfs.c
index 2f2c54f4718f..cdc4ff78a7ba 100644
--- a/drivers/s390/scsi/zfcp_sysfs.c
+++ b/drivers/s390/scsi/zfcp_sysfs.c
@@ -105,8 +105,7 @@ static ssize_t zfcp_sysfs_port_failed_store(struct device *dev,
                 return -EINVAL;
 
         zfcp_erp_set_port_status(port, ZFCP_STATUS_COMMON_RUNNING);
-        zfcp_erp_port_reopen(port, ZFCP_STATUS_COMMON_ERP_FAILED, "sypfai2",
-                             NULL);
+        zfcp_erp_port_reopen(port, ZFCP_STATUS_COMMON_ERP_FAILED, "sypfai2");
         zfcp_erp_wait(port->adapter);
 
         return count;
@@ -148,7 +147,7 @@ static ssize_t zfcp_sysfs_unit_failed_store(struct device *dev,
         if (sdev) {
                 zfcp_erp_set_lun_status(sdev, ZFCP_STATUS_COMMON_RUNNING);
                 zfcp_erp_lun_reopen(sdev, ZFCP_STATUS_COMMON_ERP_FAILED,
-                                    "syufai2", NULL);
+                                    "syufai2");
                 zfcp_erp_wait(unit->port->adapter);
         } else
                 zfcp_unit_scsi_scan(unit);
@@ -198,7 +197,7 @@ static ssize_t zfcp_sysfs_adapter_failed_store(struct device *dev,
 
         zfcp_erp_set_adapter_status(adapter, ZFCP_STATUS_COMMON_RUNNING);
         zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED,
-                                "syafai2", NULL);
+                                "syafai2");
         zfcp_erp_wait(adapter);
 out:
         zfcp_ccw_adapter_put(adapter);
@@ -256,7 +255,7 @@ static ssize_t zfcp_sysfs_port_remove_store(struct device *dev,
 
         put_device(&port->dev);
 
-        zfcp_erp_port_shutdown(port, 0, "syprs_1", NULL);
+        zfcp_erp_port_shutdown(port, 0, "syprs_1");
         zfcp_device_unregister(&port->dev, &zfcp_sysfs_port_attrs);
  out:
         zfcp_ccw_adapter_put(adapter);