Revert "[SCSI] mpt3sas: Remove phys on topology change"

This reverts commit 963ba22b90a955363644cd397b20226928eab976
("mpt3sas: Remove phys on topology change")

Reverting the previous mpt3sas drives patch changes,
since we will observe below issue

Issue:
Drives connected Enclosure/Expander will unregister with
SCSI Transport Layer, if any one remove and add expander
cable with in DMD (Device Missing Delay) time period or
even any one power-off and power-on the Enclosure with in
the DMD period.

Cc: <stable@vger.kernel.org>
Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>

diff --git a/drivers/scsi/mpt3sas/mpt3sas_transport.c b/drivers/scsi/mpt3sas/mpt3sas_transport.c
index d4bafaaebea91496438d3f3fd584951644084be3..3637ae6c0171190f34c0050e6a1682ce5982d523 100644 (file)
--- a/drivers/scsi/mpt3sas/mpt3sas_transport.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_transport.c
@@ -1003,12 +1003,9 @@ mpt3sas_transport_update_links(struct MPT3SAS_ADAPTER *ioc,
                    &mpt3sas_phy->remote_identify);
                _transport_add_phy_to_an_existing_port(ioc, sas_node,
                    mpt3sas_phy, mpt3sas_phy->remote_identify.sas_address);
-       } else {
+       } else
                memset(&mpt3sas_phy->remote_identify, 0 , sizeof(struct
                    sas_identify));
-               _transport_del_phy_from_an_existing_port(ioc, sas_node,
-                   mpt3sas_phy);
-       }
 
        if (mpt3sas_phy->phy)
                mpt3sas_phy->phy->negotiated_linkrate =