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 14D0EC433DF for ; Thu, 18 Jun 2020 01:38:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DAEE1221E6 for ; Thu, 18 Jun 2020 01:38:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1592444305; bh=ttn8Ozt/ANtbplld6OHlA8lbucWzZr1/YkK0kMkRdas=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=xpaE5ZEvXCsgE2k4Qt6/aQfDPWQMNuDHOq7jNbKPAoaSlrYjdnmEiBnwqY7kJ9QK+ hLrR/xgg3qqozbs2juVvQLGRb3B6XocxB7p5Q8ucdBvEjpxYfF9NUpNnaFQ9VQgL7V n/Ye39vmoswZoQGgBiBB7u/ZdBP22gQaBSNIKtQY= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731650AbgFRBiP (ORCPT ); Wed, 17 Jun 2020 21:38:15 -0400 Received: from mail.kernel.org ([198.145.29.99]:40502 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731811AbgFRBae (ORCPT ); Wed, 17 Jun 2020 21:30:34 -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 21E6621D90; Thu, 18 Jun 2020 01:30:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1592443833; bh=ttn8Ozt/ANtbplld6OHlA8lbucWzZr1/YkK0kMkRdas=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=avHwUyKgwM0X8EMfoyj6oUGWuIVx4ACm54SUj7bhfH93Vo6cC1MoWirNUJhxJaIq3 JcOOOO6G1+4N8JdUDZlf2s71ZG7oDdBjIon3RGjpZr65q+m6cB1VwUhf/i/Neesj0D EDmPebt1Z0RpCniBo/nUxSsZcvAVOSbA4QATn5HU= 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 4.4 21/60] scsi: ibmvscsi: Don't send host info in adapter info MAD after LPM Date: Wed, 17 Jun 2020 21:29:25 -0400 Message-Id: <20200618013004.610532-21-sashal@kernel.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200618013004.610532-1-sashal@kernel.org> References: <20200618013004.610532-1-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 e26747a1b35a..e7075aae15da 100644 --- a/drivers/scsi/ibmvscsi/ibmvscsi.c +++ b/drivers/scsi/ibmvscsi/ibmvscsi.c @@ -427,6 +427,8 @@ 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