[SRU][X/Z/A][PATCH] Fix for LP:#1730852

[Gavin Guo]

BugLink: http://bugs.launchpad.net/bugs/1730852

[Impact]
The hoplugging disk cannot be detected with the simulated MPT SAS
device on VMWare ESXi.

[Fix]
Author: Hannes Reinecke <hare at suse.de>
Date:   Thu Aug 24 14:52:43 2017 +0200

scsi: mptsas: Fixup device hotplug for VMWare ESXi
    
VMWare ESXi emulates an mptsas HBA, but exposes all drives as
direct-attached SAS drives.  This it not how the driver originally
envisioned things; SAS drives were supposed to be connected via an
expander, and only SATA drives would be direct attached. As such, any
hotplug event for direct-attach SAS drives was silently ignored, and
the guest failed to detect new drives from within a VMWare ESXi
environment.

[Test]
The patch has been verified based on the Ubuntu kernel v4.4.0-97.120.

Hannes Reinecke (1):
  scsi: mptsas: Fixup device hotplug for VMWare ESXi

 drivers/message/fusion/mptsas.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

-- 
2.7.4