From patchwork Thu Oct 25 17:15:19 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pierre Morel X-Patchwork-Id: 10656221 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 355D3109C for ; Thu, 25 Oct 2018 17:15:38 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 1C2BE2C158 for ; Thu, 25 Oct 2018 17:15:38 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 1003F2C16C; Thu, 25 Oct 2018 17:15:38 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id AF5CF2C158 for ; Thu, 25 Oct 2018 17:15:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727796AbeJZBtK (ORCPT ); Thu, 25 Oct 2018 21:49:10 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:42364 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727692AbeJZBtJ (ORCPT ); Thu, 25 Oct 2018 21:49:09 -0400 Received: from pps.filterd (m0098420.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.22/8.16.0.22) with SMTP id w9PH9fGU041351 for ; Thu, 25 Oct 2018 13:15:27 -0400 Received: from e06smtp02.uk.ibm.com (e06smtp02.uk.ibm.com [195.75.94.98]) by mx0b-001b2d01.pphosted.com with ESMTP id 2nbh5bah2s-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Thu, 25 Oct 2018 13:15:27 -0400 Received: from localhost by e06smtp02.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Thu, 25 Oct 2018 18:15:22 +0100 Received: from d06av23.portsmouth.uk.ibm.com (d06av23.portsmouth.uk.ibm.com [9.149.105.59]) by b06cxnps4075.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id w9PHFL1i45678812 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Thu, 25 Oct 2018 17:15:21 GMT Received: from d06av23.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id B67AEA4040; Thu, 25 Oct 2018 17:15:21 +0000 (GMT) Received: from d06av23.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 88778A4053; Thu, 25 Oct 2018 17:15:21 +0000 (GMT) Received: from morel-ThinkPad-W530.home (unknown [9.145.30.110]) by d06av23.portsmouth.uk.ibm.com (Postfix) with ESMTP; Thu, 25 Oct 2018 17:15:21 +0000 (GMT) From: Pierre Morel To: cohuck@redhat.com Cc: pasic@linux.vnet.ibm.com, farman@linux.ibm.com, linux-s390@vger.kernel.org, kvm@vger.kernel.org Subject: [PATCH v2 1/2] vfio: ccw: Merge BUSY and BOXED states Date: Thu, 25 Oct 2018 19:15:19 +0200 X-Mailer: git-send-email 2.7.4 In-Reply-To: <1540487720-11634-1-git-send-email-pmorel@linux.ibm.com> References: <1540487720-11634-1-git-send-email-pmorel@linux.ibm.com> X-TM-AS-GCONF: 00 x-cbid: 18102517-0008-0000-0000-00000285AE53 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 18102517-0009-0000-0000-000021EFB56C Message-Id: <1540487720-11634-2-git-send-email-pmorel@linux.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2018-10-25_09:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=1 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=844 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1807170000 definitions=main-1810250144 Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP VFIO_CCW_STATE_BOXED and VFIO_CCW_STATE_BUSY have identical actions for the same events. Let's merge both into a single state to simplify the code. We choose to keep VFIO_CCW_STATE_BUSY. Signed-off-by: Pierre Morel --- drivers/s390/cio/vfio_ccw_fsm.c | 7 +------ drivers/s390/cio/vfio_ccw_private.h | 1 - 2 files changed, 1 insertion(+), 7 deletions(-) diff --git a/drivers/s390/cio/vfio_ccw_fsm.c b/drivers/s390/cio/vfio_ccw_fsm.c index f94aa01f9c36..cab17865aafe 100644 --- a/drivers/s390/cio/vfio_ccw_fsm.c +++ b/drivers/s390/cio/vfio_ccw_fsm.c @@ -130,7 +130,7 @@ static void fsm_io_request(struct vfio_ccw_private *private, struct mdev_device *mdev = private->mdev; char *errstr = "request"; - private->state = VFIO_CCW_STATE_BOXED; + private->state = VFIO_CCW_STATE_BUSY; memcpy(scsw, io_region->scsw_area, sizeof(*scsw)); @@ -216,11 +216,6 @@ fsm_func_t *vfio_ccw_jumptable[NR_VFIO_CCW_STATES][NR_VFIO_CCW_EVENTS] = { [VFIO_CCW_EVENT_IO_REQ] = fsm_io_request, [VFIO_CCW_EVENT_INTERRUPT] = fsm_irq, }, - [VFIO_CCW_STATE_BOXED] = { - [VFIO_CCW_EVENT_NOT_OPER] = fsm_notoper, - [VFIO_CCW_EVENT_IO_REQ] = fsm_io_busy, - [VFIO_CCW_EVENT_INTERRUPT] = fsm_irq, - }, [VFIO_CCW_STATE_BUSY] = { [VFIO_CCW_EVENT_NOT_OPER] = fsm_notoper, [VFIO_CCW_EVENT_IO_REQ] = fsm_io_busy, diff --git a/drivers/s390/cio/vfio_ccw_private.h b/drivers/s390/cio/vfio_ccw_private.h index 078e46f9623d..08e9a7dc9176 100644 --- a/drivers/s390/cio/vfio_ccw_private.h +++ b/drivers/s390/cio/vfio_ccw_private.h @@ -63,7 +63,6 @@ enum vfio_ccw_state { VFIO_CCW_STATE_NOT_OPER, VFIO_CCW_STATE_STANDBY, VFIO_CCW_STATE_IDLE, - VFIO_CCW_STATE_BOXED, VFIO_CCW_STATE_BUSY, /* last element! */ NR_VFIO_CCW_STATES