| From | Greg Kroah-Hartman <> | Subject | [PATCH 3.14 36/98] Revert "[SCSI] mpt2sas: Remove phys on topology change." | Date | Sun, 25 Jan 2015 10:06:54 -0800 |
| |
3.14-stable review patch. If anyone has any objections, please let me know.
------------------
From: Sreekanth Reddy <sreekanth.reddy@avagotech.com>
commit 81a89c2d891b78695aa7e4cc0d5a7427785ae078 upstream.
This reverts commit 3520f9c779bed098ca76dd3fb6377264301d57ed ("mpt2sas: Remove phys on topology change")
Reverting the previous mpt2sas 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.
Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com> Reviewed-by: Tomas Henzl <thenzl@redhat.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/scsi/mpt2sas/mpt2sas_transport.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-)
--- a/drivers/scsi/mpt2sas/mpt2sas_transport.c +++ b/drivers/scsi/mpt2sas/mpt2sas_transport.c @@ -1006,12 +1006,9 @@ mpt2sas_transport_update_links(struct MP &mpt2sas_phy->remote_identify); _transport_add_phy_to_an_existing_port(ioc, sas_node, mpt2sas_phy, mpt2sas_phy->remote_identify.sas_address); - } else { + } else memset(&mpt2sas_phy->remote_identify, 0 , sizeof(struct sas_identify)); - _transport_del_phy_from_an_existing_port(ioc, sas_node, - mpt2sas_phy); - } if (mpt2sas_phy->phy) mpt2sas_phy->phy->negotiated_linkrate =
|