From patchwork Tue Sep 15 19:14:40 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Matthew Rosato X-Patchwork-Id: 305330 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=-12.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 A6494C433E2 for ; Tue, 15 Sep 2020 19:21:36 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 0689D206B2 for ; Tue, 15 Sep 2020 19:21:35 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=ibm.com header.i=@ibm.com header.b="LF86qoS8" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0689D206B2 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.ibm.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:50574 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kIGWF-0008Ji-0C for qemu-devel@archiver.kernel.org; Tue, 15 Sep 2020 15:21:35 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:43990) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kIGPv-0001rR-2y; Tue, 15 Sep 2020 15:15:03 -0400 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:11520) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kIGPt-0001xE-6e; Tue, 15 Sep 2020 15:15:02 -0400 Received: from pps.filterd (m0098394.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 08FJ4wnT062396; Tue, 15 Sep 2020 15:14:59 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=from : to : cc : subject : date : message-id : in-reply-to : references; s=pp1; bh=r2cLBO5amP5yWQBLViupSBa6QdqK1wp/stkI2Igtz1A=; b=LF86qoS8tkc5MdCB/qF+DpQgqyEZqKnJOVdxsY11S0nbAx5CfipLCpnv5pwgEU4orMjs EJxPEV+AetZKDDU+MfBVDlyMEooiIuWDXrxnOEHqdk4jDcz36lS1m9eOPNz12Mi5GLIi IqTeJ8smrYNv9boXgtelfKe3ZOhPmiPRCcYtJRfHUDoj4wLE+sah0kdAY2COIKh2Pd+e oVsSdXikCkAoJEfOt12a+B1UeV/xJrdccPTDhO7+uYz0jxWW6zR7W7VJEnkVpMZWhrZ2 PcvVlCUqkvWysz5u3kfnaZSDhVhHbk1DLrH1HzgenyL2Dw6HrdfCNObvXm2ttf2jv7SR UQ== Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com with ESMTP id 33k1tdav15-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 15 Sep 2020 15:14:59 -0400 Received: from m0098394.ppops.net (m0098394.ppops.net [127.0.0.1]) by pps.reinject (8.16.0.36/8.16.0.36) with SMTP id 08FJ5YWJ068843; Tue, 15 Sep 2020 15:14:59 -0400 Received: from ppma02wdc.us.ibm.com (aa.5b.37a9.ip4.static.sl-reverse.com [169.55.91.170]) by mx0a-001b2d01.pphosted.com with ESMTP id 33k1tdav0r-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 15 Sep 2020 15:14:59 -0400 Received: from pps.filterd (ppma02wdc.us.ibm.com [127.0.0.1]) by ppma02wdc.us.ibm.com (8.16.0.42/8.16.0.42) with SMTP id 08FJ8J8f015875; Tue, 15 Sep 2020 19:14:58 GMT Received: from b01cxnp22033.gho.pok.ibm.com (b01cxnp22033.gho.pok.ibm.com [9.57.198.23]) by ppma02wdc.us.ibm.com with ESMTP id 33gny91q59-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 15 Sep 2020 19:14:58 +0000 Received: from b01ledav004.gho.pok.ibm.com (b01ledav004.gho.pok.ibm.com [9.57.199.109]) by b01cxnp22033.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 08FJEvtg42467750 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 15 Sep 2020 19:14:57 GMT Received: from b01ledav004.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 7690E112065; Tue, 15 Sep 2020 19:14:57 +0000 (GMT) Received: from b01ledav004.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 57BEF112061; Tue, 15 Sep 2020 19:14:54 +0000 (GMT) Received: from oc4221205838.ibm.com (unknown [9.163.85.51]) by b01ledav004.gho.pok.ibm.com (Postfix) with ESMTP; Tue, 15 Sep 2020 19:14:53 +0000 (GMT) From: Matthew Rosato To: alex.williamson@redhat.com, cohuck@redhat.com Subject: [PATCH v3 2/5] vfio: Create shared routine for scanning info capabilities Date: Tue, 15 Sep 2020 15:14:40 -0400 Message-Id: <1600197283-25274-3-git-send-email-mjrosato@linux.ibm.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1600197283-25274-1-git-send-email-mjrosato@linux.ibm.com> References: <1600197283-25274-1-git-send-email-mjrosato@linux.ibm.com> X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.235, 18.0.687 definitions=2020-09-15_12:2020-09-15, 2020-09-15 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 mlxlogscore=999 phishscore=0 impostorscore=0 mlxscore=0 spamscore=0 bulkscore=0 adultscore=0 lowpriorityscore=0 suspectscore=0 malwarescore=0 priorityscore=1501 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2006250000 definitions=main-2009150147 Received-SPF: pass client-ip=148.163.156.1; envelope-from=mjrosato@linux.ibm.com; helo=mx0a-001b2d01.pphosted.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/09/15 15:14:56 X-ACL-Warn: Detected OS = Linux 3.x [generic] [fuzzy] X-Spam_score_int: -26 X-Spam_score: -2.7 X-Spam_bar: -- X-Spam_report: (-2.7 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: thuth@redhat.com, kvm@vger.kernel.org, pmorel@linux.ibm.com, david@redhat.com, schnelle@linux.ibm.com, qemu-devel@nongnu.org, pasic@linux.ibm.com, borntraeger@de.ibm.com, qemu-s390x@nongnu.org, mst@redhat.com, pbonzini@redhat.com, rth@twiddle.net Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Rather than duplicating the same loop in multiple locations, create a static function to do the work. Signed-off-by: Matthew Rosato Reviewed-by: Philippe Mathieu-Daudé Reviewed-by: Cornelia Huck --- hw/vfio/common.c | 21 +++++++++++++-------- 1 file changed, 13 insertions(+), 8 deletions(-) diff --git a/hw/vfio/common.c b/hw/vfio/common.c index 3335714..eba7b55 100644 --- a/hw/vfio/common.c +++ b/hw/vfio/common.c @@ -825,17 +825,12 @@ static void vfio_listener_release(VFIOContainer *container) } } -struct vfio_info_cap_header * -vfio_get_region_info_cap(struct vfio_region_info *info, uint16_t id) +static struct vfio_info_cap_header * +vfio_get_cap(void *ptr, uint32_t cap_offset, uint16_t id) { struct vfio_info_cap_header *hdr; - void *ptr = info; - - if (!(info->flags & VFIO_REGION_INFO_FLAG_CAPS)) { - return NULL; - } - for (hdr = ptr + info->cap_offset; hdr != ptr; hdr = ptr + hdr->next) { + for (hdr = ptr + cap_offset; hdr != ptr; hdr = ptr + hdr->next) { if (hdr->id == id) { return hdr; } @@ -844,6 +839,16 @@ vfio_get_region_info_cap(struct vfio_region_info *info, uint16_t id) return NULL; } +struct vfio_info_cap_header * +vfio_get_region_info_cap(struct vfio_region_info *info, uint16_t id) +{ + if (!(info->flags & VFIO_REGION_INFO_FLAG_CAPS)) { + return NULL; + } + + return vfio_get_cap((void *)info, info->cap_offset, id); +} + static int vfio_setup_region_sparse_mmaps(VFIORegion *region, struct vfio_region_info *info) {