Patch "zfcp: retain trace level for SCSI and HBA FSF response records" has been added to the 4.4-stable tree

Patch "zfcp: retain trace level for SCSI and HBA FSF response records" has been added to the 4.4-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    zfcp: retain trace level for SCSI and HBA FSF response records

to the 4.4-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     zfcp-retain-trace-level-for-scsi-and-hba-fsf-response-records.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 35f040df97fa0e94c7851c054ec71533c88b4b81 Mon Sep 17 00:00:00 2001
From: Steffen Maier <maier@linux.vnet.ibm.com>
Date: Wed, 10 Aug 2016 18:30:47 +0200
Subject: zfcp: retain trace level for SCSI and HBA FSF response records

From: Steffen Maier <maier@linux.vnet.ibm.com>

commit 35f040df97fa0e94c7851c054ec71533c88b4b81 upstream.

While retaining the actual filtering according to trace level,
the following commits started to write such filtered records
with a hardcoded record level of 1 instead of the actual record level:
commit 250a1352b95e1db3216e5c5d4f4365bea5122f4a
("[SCSI] zfcp: Redesign of the debug tracing for SCSI records.")
commit a54ca0f62f953898b05549391ac2a8a4dad6482b
("[SCSI] zfcp: Redesign of the debug tracing for HBA records.")

Now we can distinguish written records again for offline level filtering.

Signed-off-by: Steffen Maier <maier@linux.vnet.ibm.com>
Fixes: 250a1352b95e ("[SCSI] zfcp: Redesign of the debug tracing for SCSI records.")
Fixes: a54ca0f62f95 ("[SCSI] zfcp: Redesign of the debug tracing for HBA records.")
Reviewed-by: Benjamin Block <bblock@linux.vnet.ibm.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/s390/scsi/zfcp_dbf.c |   11 ++++++-----
 drivers/s390/scsi/zfcp_dbf.h |    4 ++--
 drivers/s390/scsi/zfcp_ext.h |    7 ++++---
 3 files changed, 12 insertions(+), 10 deletions(-)

--- a/drivers/s390/scsi/zfcp_dbf.c
+++ b/drivers/s390/scsi/zfcp_dbf.c
@@ -3,7 +3,7 @@
  *
  * Debug traces for zfcp.
  *
- * Copyright IBM Corp. 2002, 2013
+ * Copyright IBM Corp. 2002, 2015
  */
 
 #define KMSG_COMPONENT "zfcp"
@@ -65,7 +65,7 @@ void zfcp_dbf_pl_write(struct zfcp_dbf *
  * @tag: tag indicating which kind of unsolicited status has been received
  * @req: request for which a response was received
  */
-void zfcp_dbf_hba_fsf_res(char *tag, struct zfcp_fsf_req *req)
+void zfcp_dbf_hba_fsf_res(char *tag, int level, struct zfcp_fsf_req *req)
 {
 	struct zfcp_dbf *dbf = req->adapter->dbf;
 	struct fsf_qtcb_prefix *q_pref = &req->qtcb->prefix;
@@ -97,7 +97,7 @@ void zfcp_dbf_hba_fsf_res(char *tag, str
 				  rec->pl_len, "fsf_res", req->req_id);
 	}
 
-	debug_event(dbf->hba, 1, rec, sizeof(*rec));
+	debug_event(dbf->hba, level, rec, sizeof(*rec));
 	spin_unlock_irqrestore(&dbf->hba_lock, flags);
 }
 
@@ -399,7 +399,8 @@ void zfcp_dbf_san_in_els(char *tag, stru
  * @sc: pointer to struct scsi_cmnd
  * @fsf: pointer to struct zfcp_fsf_req
  */
-void zfcp_dbf_scsi(char *tag, struct scsi_cmnd *sc, struct zfcp_fsf_req *fsf)
+void zfcp_dbf_scsi(char *tag, int level, struct scsi_cmnd *sc,
+		   struct zfcp_fsf_req *fsf)
 {
 	struct zfcp_adapter *adapter =
 		(struct zfcp_adapter *) sc->device->host->hostdata[0];
@@ -442,7 +443,7 @@ void zfcp_dbf_scsi(char *tag, struct scs
 		}
 	}
 
-	debug_event(dbf->scsi, 1, rec, sizeof(*rec));
+	debug_event(dbf->scsi, level, rec, sizeof(*rec));
 	spin_unlock_irqrestore(&dbf->scsi_lock, flags);
 }
 
--- a/drivers/s390/scsi/zfcp_dbf.h
+++ b/drivers/s390/scsi/zfcp_dbf.h
@@ -284,7 +284,7 @@ static inline
 void zfcp_dbf_hba_fsf_resp(char *tag, int level, struct zfcp_fsf_req *req)
 {
 	if (debug_level_enabled(req->adapter->dbf->hba, level))
-		zfcp_dbf_hba_fsf_res(tag, req);
+		zfcp_dbf_hba_fsf_res(tag, level, req);
 }
 
 /**
@@ -323,7 +323,7 @@ void _zfcp_dbf_scsi(char *tag, int level
 					scmd->device->host->hostdata[0];
 
 	if (debug_level_enabled(adapter->dbf->scsi, level))
-		zfcp_dbf_scsi(tag, scmd, req);
+		zfcp_dbf_scsi(tag, level, scmd, req);
 }
 
 /**
--- a/drivers/s390/scsi/zfcp_ext.h
+++ b/drivers/s390/scsi/zfcp_ext.h
@@ -3,7 +3,7 @@
  *
  * External function declarations.
  *
- * Copyright IBM Corp. 2002, 2010
+ * Copyright IBM Corp. 2002, 2015
  */
 
 #ifndef ZFCP_EXT_H
@@ -36,7 +36,7 @@ extern void zfcp_dbf_rec_trig(char *, st
 			      struct zfcp_port *, struct scsi_device *, u8, u8);
 extern void zfcp_dbf_rec_run(char *, struct zfcp_erp_action *);
 extern void zfcp_dbf_hba_fsf_uss(char *, struct zfcp_fsf_req *);
-extern void zfcp_dbf_hba_fsf_res(char *, struct zfcp_fsf_req *);
+extern void zfcp_dbf_hba_fsf_res(char *, int, struct zfcp_fsf_req *);
 extern void zfcp_dbf_hba_bit_err(char *, struct zfcp_fsf_req *);
 extern void zfcp_dbf_hba_berr(struct zfcp_dbf *, struct zfcp_fsf_req *);
 extern void zfcp_dbf_hba_def_err(struct zfcp_adapter *, u64, u16, void **);
@@ -44,7 +44,8 @@ extern void zfcp_dbf_hba_basic(char *, s
 extern void zfcp_dbf_san_req(char *, struct zfcp_fsf_req *, u32);
 extern void zfcp_dbf_san_res(char *, struct zfcp_fsf_req *);
 extern void zfcp_dbf_san_in_els(char *, struct zfcp_fsf_req *);
-extern void zfcp_dbf_scsi(char *, struct scsi_cmnd *, struct zfcp_fsf_req *);
+extern void zfcp_dbf_scsi(char *, int, struct scsi_cmnd *,
+			  struct zfcp_fsf_req *);
 
 /* zfcp_erp.c */
 extern void zfcp_erp_set_adapter_status(struct zfcp_adapter *, u32);


Patches currently in stable-queue which might be from maier@linux.vnet.ibm.com are

queue-4.4/zfcp-fix-els-gs-request-response-length-for-hardware-data-router.patch
queue-4.4/zfcp-trace-on-request-for-open-and-close-of-wka-port.patch
queue-4.4/zfcp-close-window-with-unblocked-rport-during-rport-gone.patch
queue-4.4/zfcp-retain-trace-level-for-scsi-and-hba-fsf-response-records.patch
queue-4.4/zfcp-restore-dont-use-0-to-indicate-invalid-lun-in-rec-trace.patch
queue-4.4/zfcp-fix-fc_host-port_type-with-npiv.patch
queue-4.4/zfcp-fix-d_id-field-with-actual-value-on-tracing-san-responses.patch
queue-4.4/zfcp-fix-payload-trace-length-for-san-request-response.patch
queue-4.4/scsi-zfcp-spin_lock_irqsave-is-not-nestable.patch
queue-4.4/zfcp-restore-tracing-of-handle-for-port-and-lun-with-hba-records.patch
queue-4.4/zfcp-trace-full-payload-of-all-san-records-req-resp-iels.patch