From patchwork Thu Sep 24 08:59:25 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marc Hartmayer X-Patchwork-Id: 11796661 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id A13D9618 for ; Thu, 24 Sep 2020 09:02:15 +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 4D1DE23741 for ; Thu, 24 Sep 2020 09:02:15 +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="o4ABAH6c" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4D1DE23741 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+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Received: from localhost ([::1]:58688 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kLN8m-0003ec-GL for patchwork-qemu-devel@patchwork.kernel.org; Thu, 24 Sep 2020 05:02:14 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:60624) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kLN6Y-0001nY-OF; Thu, 24 Sep 2020 04:59:54 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:10758 helo=mx0a-001b2d01.pphosted.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kLN6U-0002fT-TP; Thu, 24 Sep 2020 04:59:54 -0400 Received: from pps.filterd (m0098414.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 08O8oriX099442; Thu, 24 Sep 2020 04:59:47 -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 : mime-version : content-transfer-encoding; s=pp1; bh=RoN7jbObmC/hYbajugHHJ1gxrL6CO7IzsXmN4aj5Olc=; b=o4ABAH6cndhie0LmXk3BAgiOL3QoLxl7ImHIqPMn0ShJ84Vu2kcJKRYEjhHOGhLYXtz9 LMc5lZdWWqzOb+3ncTs6A7fcJC7kVB96BoOwQr/dJNqhVh5WkdPXMiStLGFnkpIf+QGR LoFe5IvyZu4NAXYVZkeikiIgjUbipd0bS/WThd34gLXdh+hLGQWTMfXwsTBhfMqlUxGG PVs0Df5Wsv9t5lBtn3JiDiBK65HyeOws8wVcDz9y0l/0B9jTCJsMC/GoSuvcebiWn65l QgU7/RgpF77BXRNP+rFNXaOwW7/tXrXM1AGUqLHIbUBicTX9reeRg2uO2d/54QNzQe7R Pg== Received: from pps.reinject (localhost [127.0.0.1]) by mx0b-001b2d01.pphosted.com with ESMTP id 33rra206ew-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 24 Sep 2020 04:59:46 -0400 Received: from m0098414.ppops.net (m0098414.ppops.net [127.0.0.1]) by pps.reinject (8.16.0.36/8.16.0.36) with SMTP id 08O8ub8E114023; Thu, 24 Sep 2020 04:59:46 -0400 Received: from ppma02fra.de.ibm.com (47.49.7a9f.ip4.static.sl-reverse.com [159.122.73.71]) by mx0b-001b2d01.pphosted.com with ESMTP id 33rra206e3-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 24 Sep 2020 04:59:46 -0400 Received: from pps.filterd (ppma02fra.de.ibm.com [127.0.0.1]) by ppma02fra.de.ibm.com (8.16.0.42/8.16.0.42) with SMTP id 08O8w4Ke026222; Thu, 24 Sep 2020 08:59:44 GMT Received: from b06avi18626390.portsmouth.uk.ibm.com (b06avi18626390.portsmouth.uk.ibm.com [9.149.26.192]) by ppma02fra.de.ibm.com with ESMTP id 33n9m82m7g-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 24 Sep 2020 08:59:44 +0000 Received: from d06av22.portsmouth.uk.ibm.com (d06av22.portsmouth.uk.ibm.com [9.149.105.58]) by b06avi18626390.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 08O8w6O623724332 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 24 Sep 2020 08:58:06 GMT Received: from d06av22.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 936184C040; Thu, 24 Sep 2020 08:59:41 +0000 (GMT) Received: from d06av22.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 34B2B4C046; Thu, 24 Sep 2020 08:59:41 +0000 (GMT) Received: from marcibm.ibmuc.com (unknown [9.145.161.19]) by d06av22.portsmouth.uk.ibm.com (Postfix) with ESMTP; Thu, 24 Sep 2020 08:59:41 +0000 (GMT) From: Marc Hartmayer To: Subject: [PATCH 2/3] pc-bios/s390-ccw: break loop if a null block number is reached Date: Thu, 24 Sep 2020 10:59:25 +0200 Message-Id: <20200924085926.21709-3-mhartmay@linux.ibm.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200924085926.21709-1-mhartmay@linux.ibm.com> References: <20200924085926.21709-1-mhartmay@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.235, 18.0.687 definitions=2020-09-24_05:2020-09-24, 2020-09-24 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 bulkscore=0 mlxlogscore=923 phishscore=0 spamscore=0 impostorscore=0 suspectscore=1 lowpriorityscore=0 adultscore=0 priorityscore=1501 mlxscore=0 clxscore=1015 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2006250000 definitions=main-2009240062 Received-SPF: pass client-ip=148.163.158.5; envelope-from=mhartmay@linux.ibm.com; helo=mx0a-001b2d01.pphosted.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/09/24 04:59:46 X-ACL-Warn: Detected OS = Linux 3.x [generic] 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: Janosch Frank , qemu-s390x , Thomas Huth , "Collin L. Walling" , David Hildenbrand Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" Break the loop if `cur_block_nr` is a null block number because this means that the end of chunk is reached. In this case we will try to boot the default entry. Fixes: ba831b25262a ("s390-ccw: read stage2 boot loader data to find menu") Reviewed-by: Collin Walling Signed-off-by: Marc Hartmayer Reviewed-by: Thomas Huth --- pc-bios/s390-ccw/bootmap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/pc-bios/s390-ccw/bootmap.c b/pc-bios/s390-ccw/bootmap.c index 0d29dceaa3cc..08f16c5595a3 100644 --- a/pc-bios/s390-ccw/bootmap.c +++ b/pc-bios/s390-ccw/bootmap.c @@ -192,7 +192,7 @@ static int eckd_get_boot_menu_index(block_number_t s1b_block_nr) for (i = 0; i < STAGE2_BLK_CNT_MAX; i++) { cur_block_nr = eckd_block_num(&s1b->seek[i].chs); - if (!cur_block_nr) { + if (!cur_block_nr || is_null_block_number(cur_block_nr)) { break; }