From patchwork Mon Jul 11 08:09:00 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Cornelia Huck X-Patchwork-Id: 9223029 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 5320460760 for ; Mon, 11 Jul 2016 08:31:46 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 43894276AE for ; Mon, 11 Jul 2016 08:31:46 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 3855A2793B; Mon, 11 Jul 2016 08:31:46 +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=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id D6484276AE for ; Mon, 11 Jul 2016 08:31:45 +0000 (UTC) Received: from localhost ([::1]:58786 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bMWcy-00023r-V6 for patchwork-qemu-devel@patchwork.kernel.org; Mon, 11 Jul 2016 04:31:45 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:36617) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bMWIz-0004Ut-Kv for qemu-devel@nongnu.org; Mon, 11 Jul 2016 04:11:13 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bMWHa-0000FL-Lp for qemu-devel@nongnu.org; Mon, 11 Jul 2016 04:11:05 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:12947 helo=mx0a-001b2d01.pphosted.com) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bMWHa-0000FH-Ec for qemu-devel@nongnu.org; Mon, 11 Jul 2016 04:09:38 -0400 Received: from pps.filterd (m0098414.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.11/8.16.0.11) with SMTP id u6B88kCH141508 for ; Mon, 11 Jul 2016 04:09:38 -0400 Received: from e06smtp08.uk.ibm.com (e06smtp08.uk.ibm.com [195.75.94.104]) by mx0b-001b2d01.pphosted.com with ESMTP id 243euby6xx-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Mon, 11 Jul 2016 04:09:38 -0400 Received: from localhost by e06smtp08.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; Mon, 11 Jul 2016 09:09:34 +0100 X-IBM-Helo: d06dlp03.portsmouth.uk.ibm.com X-IBM-MailFrom: cornelia.huck@de.ibm.com X-IBM-RcptTo: qemu-devel@nongnu.org Received: from b06cxnps3075.portsmouth.uk.ibm.com (d06relay10.portsmouth.uk.ibm.com [9.149.109.195]) by d06dlp03.portsmouth.uk.ibm.com (Postfix) with ESMTP id 8CBB81B08070 for ; Mon, 11 Jul 2016 09:10:54 +0100 (BST) Received: from d06av05.portsmouth.uk.ibm.com (d06av05.portsmouth.uk.ibm.com [9.149.37.229]) by b06cxnps3075.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id u6B89Ykp9568680 for ; Mon, 11 Jul 2016 08:09:34 GMT Received: from d06av05.portsmouth.uk.ibm.com (localhost [127.0.0.1]) by d06av05.portsmouth.uk.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id u6B89I84020618 for ; Mon, 11 Jul 2016 02:09:19 -0600 Received: from gondolin.boeblingen.de.ibm.com (dyn-9-152-224-202.boeblingen.de.ibm.com [9.152.224.202]) by d06av05.portsmouth.uk.ibm.com (8.14.4/8.14.4/NCO v10.0 AVin) with ESMTP id u6B89EaY020066 (version=TLSv1/SSLv3 cipher=AES256-SHA256 bits=256 verify=NO); Mon, 11 Jul 2016 02:09:18 -0600 From: Cornelia Huck To: peter.maydell@linaro.org Date: Mon, 11 Jul 2016 10:09:00 +0200 X-Mailer: git-send-email 2.9.0 In-Reply-To: <20160711080912.13947-1-cornelia.huck@de.ibm.com> References: <20160711080912.13947-1-cornelia.huck@de.ibm.com> X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 16071108-0032-0000-0000-000001E6C23D X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 16071108-0033-0000-0000-00001BC40976 Message-Id: <20160711080912.13947-14-cornelia.huck@de.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2016-07-11_04:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=1 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1604210000 definitions=main-1607110089 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] X-Received-From: 148.163.158.5 Subject: [Qemu-devel] [PULL 13/25] s390x/pci: refactor s390_pci_find_dev_by_fh X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Yi Min Zhao , agraf@suse.de, qemu-devel@nongnu.org, borntraeger@de.ibm.com, jfrei@linux.vnet.ibm.com, Cornelia Huck Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP From: Yi Min Zhao Because this function is called very frequently, we should use a more effective way to find the zpci device. So we use the FH's index to get the device directly. Signed-off-by: Yi Min Zhao Reviewed-by: Pierre Morel Signed-off-by: Cornelia Huck --- hw/s390x/s390-pci-bus.c | 15 ++++----------- 1 file changed, 4 insertions(+), 11 deletions(-) diff --git a/hw/s390x/s390-pci-bus.c b/hw/s390x/s390-pci-bus.c index 7111587..1b83772 100644 --- a/hw/s390x/s390-pci-bus.c +++ b/hw/s390x/s390-pci-bus.c @@ -198,19 +198,12 @@ S390PCIBusDevice *s390_pci_find_dev_by_idx(uint32_t idx) S390PCIBusDevice *s390_pci_find_dev_by_fh(uint32_t fh) { - S390PCIBusDevice *pbdev; - int i; S390pciState *s = s390_get_phb(); + S390PCIBusDevice *pbdev; - if (!fh) { - return NULL; - } - - for (i = 0; i < PCI_SLOT_MAX; i++) { - pbdev = &s->pbdev[i]; - if (pbdev->fh == fh) { - return pbdev; - } + pbdev = &s->pbdev[fh & FH_MASK_INDEX]; + if (pbdev->fh != 0 && pbdev->fh == fh) { + return pbdev; } return NULL;