From patchwork Wed Nov 4 15:18:07 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Stefan Hajnoczi X-Patchwork-Id: 11880985 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=-9.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS 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 54319C2D0A3 for ; Wed, 4 Nov 2020 15:20:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0FBEA2076D for ; Wed, 4 Nov 2020 15:20:09 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="bg8dh0Ig" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730561AbgKDPUI (ORCPT ); Wed, 4 Nov 2020 10:20:08 -0500 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:43331 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730473AbgKDPUH (ORCPT ); Wed, 4 Nov 2020 10:20:07 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1604503206; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Vc0NwBAYp9PUVSZXf09QtzF61OX71oHpVzROsVcIOQc=; b=bg8dh0Ig3yyJ8m5rFOUVAvS++CqX0mc+7e4qzOVxn6DhVGl5/Wxdt/uc+D4bPkpwQnpb99 Dae/AyOX3UHxIzcLvMY6hLWoqeZZTI7Gp7eiJL7jcmIybF3H/rL2ZxdJkt2YCtnwsXk1uQ MZtREZwymtrrA1lXyUVg35DLkxtIqYk= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-15-hX5bbP4SPmK680cQBQNzkg-1; Wed, 04 Nov 2020 10:20:04 -0500 X-MC-Unique: hX5bbP4SPmK680cQBQNzkg-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 768F4186DD25; Wed, 4 Nov 2020 15:20:02 +0000 (UTC) Received: from localhost (ovpn-115-145.ams2.redhat.com [10.36.115.145]) by smtp.corp.redhat.com (Postfix) with ESMTP id D297319D61; Wed, 4 Nov 2020 15:19:55 +0000 (UTC) From: Stefan Hajnoczi To: qemu-devel@nongnu.org, Peter Maydell Cc: kvm@vger.kernel.org, "Dr. David Alan Gilbert" , =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= , Eduardo Habkost , Markus Armbruster , Eric Blake , Fam Zheng , Stefan Hajnoczi , Keith Busch , Max Reitz , qemu-block@nongnu.org, Kevin Wolf , Coiby Xu , Paolo Bonzini , Klaus Jensen , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , Eric Auger Subject: [PULL 12/33] block/nvme: Make nvme_identify() return boolean indicating error Date: Wed, 4 Nov 2020 15:18:07 +0000 Message-Id: <20201104151828.405824-13-stefanha@redhat.com> In-Reply-To: <20201104151828.405824-1-stefanha@redhat.com> References: <20201104151828.405824-1-stefanha@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org From: Philippe Mathieu-Daudé Just for consistency, following the example documented since commit e3fe3988d7 ("error: Document Error API usage rules"), return a boolean value indicating an error is set or not. Directly pass errp as the local_err is not requested in our case. Tested-by: Eric Auger Signed-off-by: Philippe Mathieu-Daudé Reviewed-by: Stefan Hajnoczi Message-id: 20201029093306.1063879-11-philmd@redhat.com Signed-off-by: Stefan Hajnoczi Tested-by: Eric Auger --- block/nvme.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/block/nvme.c b/block/nvme.c index c450499111..9833501245 100644 --- a/block/nvme.c +++ b/block/nvme.c @@ -506,9 +506,11 @@ static int nvme_cmd_sync(BlockDriverState *bs, NVMeQueuePair *q, return ret; } -static void nvme_identify(BlockDriverState *bs, int namespace, Error **errp) +/* Returns true on success, false on failure. */ +static bool nvme_identify(BlockDriverState *bs, int namespace, Error **errp) { BDRVNVMeState *s = bs->opaque; + bool ret = false; union { NvmeIdCtrl ctrl; NvmeIdNs ns; @@ -585,10 +587,13 @@ static void nvme_identify(BlockDriverState *bs, int namespace, Error **errp) goto out; } + ret = true; s->blkshift = lbaf->ds; out: qemu_vfio_dma_unmap(s->vfio, id); qemu_vfree(id); + + return ret; } static bool nvme_poll_queue(NVMeQueuePair *q) @@ -701,7 +706,6 @@ static int nvme_init(BlockDriverState *bs, const char *device, int namespace, uint64_t cap; uint64_t timeout_ms; uint64_t deadline, now; - Error *local_err = NULL; volatile NvmeBar *regs = NULL; qemu_co_mutex_init(&s->dma_map_lock); @@ -818,9 +822,7 @@ static int nvme_init(BlockDriverState *bs, const char *device, int namespace, &s->irq_notifier[MSIX_SHARED_IRQ_IDX], false, nvme_handle_event, nvme_poll_cb); - nvme_identify(bs, namespace, &local_err); - if (local_err) { - error_propagate(errp, local_err); + if (!nvme_identify(bs, namespace, errp)) { ret = -EIO; goto out; }