From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759497AbbAYTXQ (ORCPT ); Sun, 25 Jan 2015 14:23:16 -0500 Received: from mail.linuxfoundation.org ([140.211.169.12]:57208 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754886AbbAYSJE (ORCPT ); Sun, 25 Jan 2015 13:09:04 -0500 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Sreekanth Reddy , Tomas Henzl , Christoph Hellwig Subject: [PATCH 3.14 36/98] Revert "[SCSI] mpt2sas: Remove phys on topology change." Date: Sun, 25 Jan 2015 10:06:54 -0800 Message-Id: <20150125180714.440121469@linuxfoundation.org> X-Mailer: git-send-email 2.2.2 In-Reply-To: <20150125180712.859646324@linuxfoundation.org> References: <20150125180712.859646324@linuxfoundation.org> User-Agent: quilt/0.63-1 MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.14-stable review patch. If anyone has any objections, please let me know. ------------------ From: Sreekanth Reddy 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 Reviewed-by: Tomas Henzl Signed-off-by: Christoph Hellwig Signed-off-by: Greg Kroah-Hartman --- 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 =