Patch "[PATCH 049/135] lpfc: Fix FCF Infinite loop in" has been added to the 4.4-stable tree

Patch "[PATCH 049/135] lpfc: Fix FCF Infinite loop in" 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

    [PATCH 049/135] lpfc: Fix FCF Infinite loop in

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:
     0049-lpfc-Fix-FCF-Infinite-loop-in-lpfc_sli4_fcf_rr_next_.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 5f7eb50385ad993baa7e08814b59305ac85a9000 Mon Sep 17 00:00:00 2001
From: James Smart <james.smart@avagotech.com>
Date: Wed, 16 Dec 2015 18:11:52 -0500
Subject: [PATCH 049/135] lpfc: Fix FCF Infinite loop in
 lpfc_sli4_fcf_rr_next_index_get.

[ Upstream commit f5cb5304eb26d307c9b30269fb0e007e0b262b7d ]

Fix FCF Infinite loop in lpfc_sli4_fcf_rr_next_index_get.

Signed-off-by: Dick Kennedy <dick.kennedy@avagotech.com>
Signed-off-by: James Smart <james.smart@avagotech.com>
Reviewed-by: Hannes Reinicke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/scsi/lpfc/lpfc_sli.c |    8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -16173,7 +16173,7 @@ fail_fcf_read:
 }
 
 /**
- * lpfc_check_next_fcf_pri
+ * lpfc_check_next_fcf_pri_level
  * phba pointer to the lpfc_hba struct for this port.
  * This routine is called from the lpfc_sli4_fcf_rr_next_index_get
  * routine when the rr_bmask is empty. The FCF indecies are put into the
@@ -16329,8 +16329,12 @@ next_priority:
 
 	if (next_fcf_index < LPFC_SLI4_FCF_TBL_INDX_MAX &&
 		phba->fcf.fcf_pri[next_fcf_index].fcf_rec.flag &
-		LPFC_FCF_FLOGI_FAILED)
+		LPFC_FCF_FLOGI_FAILED) {
+		if (list_is_singular(&phba->fcf.fcf_pri_list))
+			return LPFC_FCOE_FCF_NEXT_NONE;
+
 		goto next_priority;
+	}
 
 	lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
 			"2845 Get next roundrobin failover FCF (x%x)\n",


Patches currently in stable-queue which might be from james.smart@avagotech.com are

queue-4.4/0056-lpfc-Fix-mbox-reuse-in-PLOGI-completion.patch
queue-4.4/0052-lpfc-Fix-driver-crash-when-module-parameter-lpfc_fcp.patch
queue-4.4/0121-lpfc-Fix-DMA-faults-observed-upon-plugging-loopback-.patch
queue-4.4/0049-lpfc-Fix-FCF-Infinite-loop-in-lpfc_sli4_fcf_rr_next_.patch
queue-4.4/0055-lpfc-Fix-RDP-ACC-being-too-long.patch
queue-4.4/0051-lpfc-Fix-RegLogin-failed-error-seen-on-Lancer-FC-dur.patch
queue-4.4/0054-lpfc-Fix-RDP-Speed-reporting.patch
queue-4.4/0057-lpfc-Fix-external-loopback-failure.patch
queue-4.4/0053-lpfc-Fix-crash-in-fcp-command-completion-path.patch
queue-4.4/0050-lpfc-Fix-the-FLOGI-discovery-logic-to-comply-with-T1.patch