From patchwork Fri Jun 7 06:47:32 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Aneesh Kumar K.V" X-Patchwork-Id: 10980853 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 111673A3F for ; Fri, 7 Jun 2019 06:47:51 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id EE9D52886E for ; Fri, 7 Jun 2019 06:47:50 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id E04CE28B11; Fri, 7 Jun 2019 06:47:50 +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=-2.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_NONE autolearn=unavailable version=3.3.1 Received: from ml01.01.org (ml01.01.org [198.145.21.10]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id C8BC728B0D for ; Fri, 7 Jun 2019 06:47:49 +0000 (UTC) Received: from [127.0.0.1] (localhost [IPv6:::1]) by ml01.01.org (Postfix) with ESMTP id 75F9821290DC7; Thu, 6 Jun 2019 23:47:49 -0700 (PDT) X-Original-To: linux-nvdimm@lists.01.org Delivered-To: linux-nvdimm@lists.01.org Received-SPF: Pass (sender SPF authorized) identity=mailfrom; client-ip=148.163.156.1; helo=mx0a-001b2d01.pphosted.com; envelope-from=aneesh.kumar@linux.ibm.com; receiver=linux-nvdimm@lists.01.org Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ml01.01.org (Postfix) with ESMTPS id 0983621290DC5 for ; Thu, 6 Jun 2019 23:47:47 -0700 (PDT) Received: from pps.filterd (m0098396.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x576lHRT077199 for ; Fri, 7 Jun 2019 02:47:46 -0400 Received: from e14.ny.us.ibm.com (e14.ny.us.ibm.com [129.33.205.204]) by mx0a-001b2d01.pphosted.com with ESMTP id 2syey8h1b8-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Fri, 07 Jun 2019 02:47:46 -0400 Received: from localhost by e14.ny.us.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) Fri, 7 Jun 2019 07:47:41 +0100 Received: from b01ledav003.gho.pok.ibm.com (b01ledav003.gho.pok.ibm.com [9.57.199.108]) by b01cxnp22035.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id x576le5c19202352 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 7 Jun 2019 06:47:40 GMT Received: from b01ledav003.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id B6EB8B2064; Fri, 7 Jun 2019 06:47:40 +0000 (GMT) Received: from b01ledav003.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 4726EB2067; Fri, 7 Jun 2019 06:47:39 +0000 (GMT) Received: from skywalker.in.ibm.com (unknown [9.124.35.207]) by b01ledav003.gho.pok.ibm.com (Postfix) with ESMTP; Fri, 7 Jun 2019 06:47:39 +0000 (GMT) From: "Aneesh Kumar K.V" To: dan.j.williams@intel.com Subject: [PATCH] =?utf-8?q?mm/nvdimm=3A_Fix_endian_conversion_issues=C2=A0?= Date: Fri, 7 Jun 2019 12:17:32 +0530 X-Mailer: git-send-email 2.21.0 MIME-Version: 1.0 X-TM-AS-GCONF: 00 x-cbid: 19060706-0052-0000-0000-000003CCAA7E X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00011227; HX=3.00000242; KW=3.00000007; PH=3.00000004; SC=3.00000286; SDB=6.01214407; UDB=6.00638362; IPR=6.00995493; MB=3.00027216; MTD=3.00000008; XFM=3.00000015; UTC=2019-06-07 06:47:43 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 19060706-0053-0000-0000-00006138181D Message-Id: <20190607064732.30384-1-aneesh.kumar@linux.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2019-06-07_03:, , 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=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1906070048 X-BeenThere: linux-nvdimm@lists.01.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Linux-nvdimm developer list." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-mm@kvack.org, linuxppc-dev@lists.ozlabs.org, "Aneesh Kumar K.V" , linux-nvdimm@lists.01.org Errors-To: linux-nvdimm-bounces@lists.01.org Sender: "Linux-nvdimm" X-Virus-Scanned: ClamAV using ClamSMTP nd_label->dpa issue was observed when trying to enable the namespace created with little-endian kernel on a big-endian kernel. That made me run `sparse` on the rest of the code and other changes are the result of that. Signed-off-by: Aneesh Kumar K.V Reviewed-by: Vishal Verma --- drivers/nvdimm/btt.c | 8 ++++---- drivers/nvdimm/namespace_devs.c | 7 ++++--- 2 files changed, 8 insertions(+), 7 deletions(-) diff --git a/drivers/nvdimm/btt.c b/drivers/nvdimm/btt.c index 4671776f5623..4ac0f5dde467 100644 --- a/drivers/nvdimm/btt.c +++ b/drivers/nvdimm/btt.c @@ -400,9 +400,9 @@ static int btt_flog_write(struct arena_info *arena, u32 lane, u32 sub, arena->freelist[lane].sub = 1 - arena->freelist[lane].sub; if (++(arena->freelist[lane].seq) == 4) arena->freelist[lane].seq = 1; - if (ent_e_flag(ent->old_map)) + if (ent_e_flag(le32_to_cpu(ent->old_map))) arena->freelist[lane].has_err = 1; - arena->freelist[lane].block = le32_to_cpu(ent_lba(ent->old_map)); + arena->freelist[lane].block = ent_lba(le32_to_cpu(ent->old_map)); return ret; } @@ -568,8 +568,8 @@ static int btt_freelist_init(struct arena_info *arena) * FIXME: if error clearing fails during init, we want to make * the BTT read-only */ - if (ent_e_flag(log_new.old_map) && - !ent_normal(log_new.old_map)) { + if (ent_e_flag(le32_to_cpu(log_new.old_map)) && + !ent_normal(le32_to_cpu(log_new.old_map))) { arena->freelist[i].has_err = 1; ret = arena_clear_freelist_error(arena, i); if (ret) diff --git a/drivers/nvdimm/namespace_devs.c b/drivers/nvdimm/namespace_devs.c index c4c5a191b1d6..500c37db496a 100644 --- a/drivers/nvdimm/namespace_devs.c +++ b/drivers/nvdimm/namespace_devs.c @@ -1995,7 +1995,7 @@ static struct device *create_namespace_pmem(struct nd_region *nd_region, nd_mapping = &nd_region->mapping[i]; label_ent = list_first_entry_or_null(&nd_mapping->labels, typeof(*label_ent), list); - label0 = label_ent ? label_ent->label : 0; + label0 = label_ent ? label_ent->label : NULL; if (!label0) { WARN_ON(1); @@ -2330,8 +2330,9 @@ static struct device **scan_labels(struct nd_region *nd_region) continue; /* skip labels that describe extents outside of the region */ - if (nd_label->dpa < nd_mapping->start || nd_label->dpa > map_end) - continue; + if (__le64_to_cpu(nd_label->dpa) < nd_mapping->start || + __le64_to_cpu(nd_label->dpa) > map_end) + continue; i = add_namespace_resource(nd_region, nd_label, devs, count); if (i < 0)