From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0BD48C433DF for ; Thu, 18 Jun 2020 02:46:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CCC8820776 for ; Thu, 18 Jun 2020 02:46:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1592448413; bh=IYJNKOK5cBTrSDuxAQOv5bJd8WQAogwI6p6Osfy88qk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=wgRNvhGa0wiVk4lBHop6139cVO2qnWl+3QvsIFGCHouFnnKf9YGJ4o6RLPFVoJ18D EzrNU5FhrV4N3BnSjf+H9KiLUIcJ/m5EBDhxu4a9DlK/iGep9Lp7MjHdnfUEZGCgfK BiU0rmHqDAH7AfXtPYH6F3lEWGwwFLtGUHtu7edU= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728528AbgFRBKc (ORCPT ); Wed, 17 Jun 2020 21:10:32 -0400 Received: from mail.kernel.org ([198.145.29.99]:37622 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728521AbgFRBKa (ORCPT ); Wed, 17 Jun 2020 21:10:30 -0400 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 9272D2089D; Thu, 18 Jun 2020 01:10:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1592442629; bh=IYJNKOK5cBTrSDuxAQOv5bJd8WQAogwI6p6Osfy88qk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=QKKuKD5bI6pyGPFnYRfaVrAXpjoxsFVl31K+EykBKNhfhsIp1Dew9zV9pyfl+II+x Jrdo5e7eAc8fOnYsYgJWvdRgb2sGXz/kj5q65YjRuC/zB7mt6kbjn0O4urSW1Nq1vt Med7Sif/1pPAw+/yqZfdAIG6rkJxkSkngtrQOG1Y= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Tyrel Datwyler , "Martin K . Petersen" , Sasha Levin , linux-scsi@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Subject: [PATCH AUTOSEL 5.7 107/388] scsi: ibmvscsi: Don't send host info in adapter info MAD after LPM Date: Wed, 17 Jun 2020 21:03:24 -0400 Message-Id: <20200618010805.600873-107-sashal@kernel.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200618010805.600873-1-sashal@kernel.org> References: <20200618010805.600873-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Tyrel Datwyler [ Upstream commit 4919b33b63c8b69d8dcf2b867431d0e3b6dc6d28 ] The adapter info MAD is used to send the client info and receive the host info as a response. A persistent buffer is used and as such the client info is overwritten after the response. During the course of a normal adapter reset the client info is refreshed in the buffer in preparation for sending the adapter info MAD. However, in the special case of LPM where we reenable the CRQ instead of a full CRQ teardown and reset we fail to refresh the client info in the adapter info buffer. As a result, after Live Partition Migration (LPM) we erroneously report the host's info as our own. [mkp: typos] Link: https://lore.kernel.org/r/20200603203632.18426-1-tyreld@linux.ibm.com Signed-off-by: Tyrel Datwyler Signed-off-by: Martin K. Petersen Signed-off-by: Sasha Levin --- drivers/scsi/ibmvscsi/ibmvscsi.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/scsi/ibmvscsi/ibmvscsi.c b/drivers/scsi/ibmvscsi/ibmvscsi.c index 59f0f1030c54..c5711c659b51 100644 --- a/drivers/scsi/ibmvscsi/ibmvscsi.c +++ b/drivers/scsi/ibmvscsi/ibmvscsi.c @@ -415,6 +415,8 @@ static int ibmvscsi_reenable_crq_queue(struct crq_queue *queue, int rc = 0; struct vio_dev *vdev = to_vio_dev(hostdata->dev); + set_adapter_info(hostdata); + /* Re-enable the CRQ */ do { if (rc) -- 2.25.1