This is a note to let you know that I've just added the patch titled
scsi: lpfc: Fix oops if nvmet_fc_register_targetport fails
to the 4.14-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:
scsi-lpfc-fix-oops-if-nvmet_fc_register_targetport-fails.patch
and it can be found in the queue-4.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From e7981a2c725f8e237f749fa1358997707d57e32c Mon Sep 17 00:00:00 2001
From: Dick Kennedy <dick.kennedy@xxxxxxxxxxxx>
Date: Fri, 29 Sep 2017 17:34:39 -0700
Subject: scsi: lpfc: Fix oops if nvmet_fc_register_targetport fails
From: Dick Kennedy <dick.kennedy@xxxxxxxxxxxx>
commit e7981a2c725f8e237f749fa1358997707d57e32c upstream.
if nvmet targetport registration fails, the driver encounters a NULL
pointer oops in lpfc_hb_timeout_handler.
To fix: if registration fails, ensure nvmet_support is cleared on the
port structure.
Also enhanced the log message on failure.
Signed-off-by: Dick Kennedy <dick.kennedy@xxxxxxxxxxxx>
Signed-off-by: James Smart <james.smart@xxxxxxxxxxxx>
Reviewed-by: Johannes Thumshirn <jthumshirn@xxxxxxx>
Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/scsi/lpfc/lpfc_nvmet.c | 15 +++++++++++----
1 file changed, 11 insertions(+), 4 deletions(-)
--- a/drivers/scsi/lpfc/lpfc_nvmet.c
+++ b/drivers/scsi/lpfc/lpfc_nvmet.c
@@ -1138,9 +1138,14 @@ lpfc_nvmet_create_targetport(struct lpfc
#endif
if (error) {
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_DISC,
- "6025 Cannot register NVME targetport "
- "x%x\n", error);
+ "6025 Cannot register NVME targetport x%x: "
+ "portnm %llx nodenm %llx segs %d qs %d\n",
+ error,
+ pinfo.port_name, pinfo.node_name,
+ lpfc_tgttemplate.max_sgl_segments,
+ lpfc_tgttemplate.max_hw_queues);
phba->targetport = NULL;
+ phba->nvmet_support = 0;
lpfc_nvmet_cleanup_io_context(phba);
@@ -1152,9 +1157,11 @@ lpfc_nvmet_create_targetport(struct lpfc
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC,
"6026 Registered NVME "
"targetport: %p, private %p "
- "portnm %llx nodenm %llx\n",
+ "portnm %llx nodenm %llx segs %d qs %d\n",
phba->targetport, tgtp,
- pinfo.port_name, pinfo.node_name);
+ pinfo.port_name, pinfo.node_name,
+ lpfc_tgttemplate.max_sgl_segments,
+ lpfc_tgttemplate.max_hw_queues);
atomic_set(&tgtp->rcv_ls_req_in, 0);
atomic_set(&tgtp->rcv_ls_req_out, 0);
Patches currently in stable-queue which might be from dick.kennedy@xxxxxxxxxxxx are
queue-4.14/scsi-lpfc-fix-crash-receiving-els-while-detaching-driver.patch
queue-4.14/scsi-lpfc-fix-pci-hot-plug-crash-in-list_add-call.patch
queue-4.14/scsi-lpfc-fix-pci-hot-plug-crash-in-timer-management-routines.patch
queue-4.14/scsi-lpfc-fix-fcp-hba_wqidx-assignment.patch
queue-4.14/scsi-lpfc-fix-oops-if-nvmet_fc_register_targetport-fails.patch