Re: FAILED: patch "[PATCH] scsi: lpfc: Fix broken Credit Recovery after driver load" failed to apply to 5.4-stable tree

[Sasha Levin <sashal@kernel.org>]

On Wed, Apr 15, 2020 at 01:18:47PM +0200, gregkh@linuxfoundation.org wrote:
>
>The patch below does not apply to the 5.4-stable tree.
>If someone wants it applied there, or to any other stable or longterm
>tree, then please email the backport, including the original git commit
>id to <stable@vger.kernel.org>.
>
>thanks,
>
>greg k-h
>
>------------------ original commit in Linus's tree ------------------
>
>From 835214f5d5f516a38069bc077c879c7da00d6108 Mon Sep 17 00:00:00 2001
>From: James Smart <jsmart2021@gmail.com>
>Date: Mon, 27 Jan 2020 16:23:03 -0800
>Subject: [PATCH] scsi: lpfc: Fix broken Credit Recovery after driver load
>
>When driver is set to enable bb credit recovery, the switch displayed the
>setting as inactive.  If the link bounces, it switches to Active.
>
>During link up processing, the driver currently does a MBX_READ_SPARAM
>followed by a MBX_CONFIG_LINK. These mbox commands are queued to be
>executed, one at a time and the completion is processed by the worker
>thread.  Since the MBX_READ_SPARAM is done BEFORE the MBX_CONFIG_LINK, the
>BB_SC_N bit is never set the the returned values. BB Credit recovery status
>only gets set after the driver requests the feature in CONFIG_LINK, which
>is done after the link up. Thus the ordering of READ_SPARAM needs to follow
>the CONFIG_LINK.
>
>Fix by reordering so that READ_SPARAM is done after CONFIG_LINK.  Added a
>HBA_DEFER_FLOGI flag so that any FLOGI handling waits until after the
>READ_SPARAM is done so that the proper BB credit value is set in the FLOGI
>payload.
>
>Fixes: 6bfb16208298 ("scsi: lpfc: Fix configuration of BB credit recovery in service parameters")
>Cc: <stable@vger.kernel.org> # v5.4+
>Link: https://lore.kernel.org/r/20200128002312.16346-4-jsmart2021@gmail.com
>Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
>Signed-off-by: James Smart <jsmart2021@gmail.com>
>Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

I've grabbed these additional fixes to address the conflict:

6bfb16208298 ("scsi: lpfc: Fix configuration of BB credit recovery in service parameters")
e3ba04c9bad1 ("scsi: lpfc: Fix Fabric hostname registration if system hostname changes")
93a4d6f40198 ("scsi: lpfc: Add registration for CPU Offline/Online events")

-- 
Thanks,
Sasha