On 12/02/2014 04:28 PM, Sreekanth Reddy wrote:
> 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.
We were not able to reproduce the issue which the original patch
should have fixed, so it's fine to remove it.
Reviewed-by: Tomas Henzl <thenzl@xxxxxxxxxx>
> Cc: <stable@xxxxxxxxxxxxxxx>
> Cc: Tomas Henzl <thenzl@xxxxxxxxxx>
> Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@xxxxxxxxxxxxx>
> ---
> drivers/scsi/mpt2sas/mpt2sas_transport.c | 5 +----
> 1 file changed, 1 insertion(+), 4 deletions(-)
>
> diff --git a/drivers/scsi/mpt2sas/mpt2sas_transport.c b/drivers/scsi/mpt2sas/mpt2sas_transport.c
> index 0d1d064..e689bf2 100644
> --- a/drivers/scsi/mpt2sas/mpt2sas_transport.c
> +++ b/drivers/scsi/mpt2sas/mpt2sas_transport.c
> @@ -1006,12 +1006,9 @@ mpt2sas_transport_update_links(struct MPT2SAS_ADAPTER *ioc,
> &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 =
--
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