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| author | Steffen Maier <maier@linux.ibm.com> | 2018-05-17 20:14:49 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-07-03 12:24:58 +0300 |
| commit | a64be479ef08c945a94626e90b11ec46bcb66a5e (patch) | |
| tree | 096a8f82286b0587da9bb6aeee5547f4a3c73002 | |
| parent | beadcfcca2577f56e70f99cde38f1307aed09f03 (diff) | |
| download | linux-a64be479ef08c945a94626e90b11ec46bcb66a5e.tar.xz | |
scsi: zfcp: fix missing REC trigger trace on enqueue without ERP thread
commit 6a76550841d412330bd86aed3238d1888ba70f0e upstream.
Example trace record formatted with zfcpdbf from s390-tools:
Timestamp : ...
Area : REC
Subarea : 00
Level : 1
Exception : -
CPU ID : ..
Caller : 0x...
Record ID : 1 ZFCP_DBF_REC_TRIG
Tag : .......
LUN : 0x...
WWPN : 0x...
D_ID : 0x...
Adapter status : 0x...
Port status : 0x...
LUN status : 0x...
Ready count : 0x...
Running count : 0x...
ERP want : 0x0. ZFCP_ERP_ACTION_REOPEN_...
ERP need : 0xc0 ZFCP_ERP_ACTION_NONE
Signed-off-by: Steffen Maier <maier@linux.ibm.com>
Cc: <stable@vger.kernel.org> #2.6.38+
Reviewed-by: Benjamin Block <bblock@linux.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/s390/scsi/zfcp_erp.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/s390/scsi/zfcp_erp.c b/drivers/s390/scsi/zfcp_erp.c index d413fd3f6846..7aa243a6cdbf 100644 --- a/drivers/s390/scsi/zfcp_erp.c +++ b/drivers/s390/scsi/zfcp_erp.c @@ -315,8 +315,11 @@ static int zfcp_erp_action_enqueue(int want, struct zfcp_adapter *adapter, goto out; } - if (!adapter->erp_thread) - return -EIO; + if (!adapter->erp_thread) { + need = ZFCP_ERP_ACTION_NONE; /* marker for trace */ + retval = -EIO; + goto out; + } need = zfcp_erp_required_act(want, adapter, port, sdev); if (!need) |