linux-kernel - [PATCH 3.12 26/72] zfcp: restore tracing of handle for port and LUN with HBA records

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Date:   Mon,  7 Nov 2016 14:04:33 +0100
From:   Jiri Slaby <jslaby@...e.cz>
To:     stable@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org,
        Steffen Maier <maier@...ux.vnet.ibm.com>,
        "Martin K . Petersen" <martin.petersen@...cle.com>,
        Jiri Slaby <jslaby@...e.cz>
Subject: [PATCH 3.12 26/72] zfcp: restore tracing of handle for port and LUN with HBA records

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

3.12-stable review patch.  If anyone has any objections, please let me know.

===============

commit 7c964ffe586bc0c3d9febe9bf97a2e4b2866e5b7 upstream.

This information was lost with
commit a54ca0f62f953898b05549391ac2a8a4dad6482b
("[SCSI] zfcp: Redesign of the debug tracing for HBA records.")
but is required to debug e.g. invalid handle situations.

Signed-off-by: Steffen Maier <maier@...ux.vnet.ibm.com>
Fixes: a54ca0f62f95 ("[SCSI] zfcp: Redesign of the debug tracing for HBA records.")
Reviewed-by: Benjamin Block <bblock@...ux.vnet.ibm.com>
Reviewed-by: Hannes Reinecke <hare@...e.com>
Signed-off-by: Martin K. Petersen <martin.petersen@...cle.com>
Signed-off-by: Jiri Slaby <jslaby@...e.cz>
---
 drivers/s390/scsi/zfcp_dbf.c | 2 ++
 drivers/s390/scsi/zfcp_dbf.h | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/drivers/s390/scsi/zfcp_dbf.c b/drivers/s390/scsi/zfcp_dbf.c
index b65de8ae5ef3..9bd96b37ba66 100644
--- a/drivers/s390/scsi/zfcp_dbf.c
+++ b/drivers/s390/scsi/zfcp_dbf.c
@@ -85,6 +85,8 @@ void zfcp_dbf_hba_fsf_res(char *tag, int level, struct zfcp_fsf_req *req)
 	rec->u.res.req_issued = req->issued;
 	rec->u.res.prot_status = q_pref->prot_status;
 	rec->u.res.fsf_status = q_head->fsf_status;
+	rec->u.res.port_handle = q_head->port_handle;
+	rec->u.res.lun_handle = q_head->lun_handle;
 
 	memcpy(rec->u.res.prot_status_qual, &q_pref->prot_status_qual,
 	       FSF_PROT_STATUS_QUAL_SIZE);
diff --git a/drivers/s390/scsi/zfcp_dbf.h b/drivers/s390/scsi/zfcp_dbf.h
index 97f46e6964d4..ac7bce8aab59 100644
--- a/drivers/s390/scsi/zfcp_dbf.h
+++ b/drivers/s390/scsi/zfcp_dbf.h
@@ -131,6 +131,8 @@ struct zfcp_dbf_hba_res {
 	u8  prot_status_qual[FSF_PROT_STATUS_QUAL_SIZE];
 	u32 fsf_status;
 	u8  fsf_status_qual[FSF_STATUS_QUALIFIER_SIZE];
+	u32 port_handle;
+	u32 lun_handle;
 } __packed;
 
 /**
-- 
2.10.2