From patchwork Wed Dec 15 14:02:13 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Markus Armbruster X-Patchwork-Id: 1568266 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: bilbo.ozlabs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=B7IQvefp; dkim-atps=neutral Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) 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 bilbo.ozlabs.org (Postfix) with ESMTPS id 4JDcwK36p9z9sRK for ; Thu, 16 Dec 2021 01:25:21 +1100 (AEDT) Received: from localhost ([::1]:59492 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mxVDb-0000nV-9r for incoming@patchwork.ozlabs.org; Wed, 15 Dec 2021 09:25:19 -0500 Received: from eggs.gnu.org ([209.51.188.92]:43410) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mxUrf-0000vh-V0 for qemu-devel@nongnu.org; Wed, 15 Dec 2021 09:02:40 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]:39938) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mxUrY-0001SC-MF for qemu-devel@nongnu.org; Wed, 15 Dec 2021 09:02:39 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1639576951; 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=20ijUi3CkWbjIzQXaQV0l3+n+XRvzcevWx7pjdsoMUo=; b=B7IQvefpmN4GQUv3XaTMDvri2UVHkf1+UMDj872KocJEMdWsadJoVusYlyfdH7IZzb2RcN oqJZgHNSAmIX6n8Uwy33N5zYXmJGKLyZqRifdmOMUHXeeo0k8XwVHxShT7N7E4rU47o+De j7Du0Wc32TDwZEGTTdTEVq0Umh3ybH8= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-357-Kj7GGtiBMfCqfKcy4801qQ-1; Wed, 15 Dec 2021 09:02:26 -0500 X-MC-Unique: Kj7GGtiBMfCqfKcy4801qQ-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 210B31934105; Wed, 15 Dec 2021 14:02:24 +0000 (UTC) Received: from blackfin.pond.sub.org (ovpn-112-2.ams2.redhat.com [10.36.112.2]) by smtp.corp.redhat.com (Postfix) with ESMTPS id CE1C25E485; Wed, 15 Dec 2021 14:02:23 +0000 (UTC) Received: by blackfin.pond.sub.org (Postfix, from userid 1000) id 56BE6113861E; Wed, 15 Dec 2021 15:02:22 +0100 (CET) From: Markus Armbruster To: qemu-devel@nongnu.org Subject: [PULL 04/13] hw/arm/versatilepb hw/arm/vexpress: Replace drive_get_next() by drive_get() Date: Wed, 15 Dec 2021 15:02:13 +0100 Message-Id: <20211215140222.769652-5-armbru@redhat.com> In-Reply-To: <20211215140222.769652-1-armbru@redhat.com> References: <20211215140222.769652-1-armbru@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=armbru@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=170.10.129.124; envelope-from=armbru@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -34 X-Spam_score: -3.5 X-Spam_bar: --- X-Spam_report: (-3.5 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.719, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peter Maydell , qemu-arm@nongnu.org, richard.henderson@linaro.org Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" drive_get_next() is basically a bad idea. It returns the "next" block backend of a certain interface type. "Next" means bus=0,unit=N, where subsequent calls count N up from zero, per interface type. This lets you define unit numbers implicitly by execution order. If the order changes, or new calls appear "in the middle", unit numbers change. ABI break. Hard to spot in review. The versatile and vexpress machines ("versatileab", "versatilepb", "vexpress-a9", "vexpress-a15") connect just one or two backends of a type with drive_get_next(). Change them to use drive_get() directly. This makes the unit numbers explicit in the code. Cc: Peter Maydell Cc: qemu-arm@nongnu.org Signed-off-by: Markus Armbruster Message-Id: <20211117163409.3587705-5-armbru@redhat.com> Reviewed-by: Peter Maydell --- hw/arm/versatilepb.c | 4 ++-- hw/arm/vexpress.c | 6 +++--- 2 files changed, 5 insertions(+), 5 deletions(-) diff --git a/hw/arm/versatilepb.c b/hw/arm/versatilepb.c index 575399c4fc..ecc1f6cf74 100644 --- a/hw/arm/versatilepb.c +++ b/hw/arm/versatilepb.c @@ -310,7 +310,7 @@ static void versatile_init(MachineState *machine, int board_id) qdev_connect_gpio_out(sysctl, 0, qdev_get_gpio_in(dev, 0)); dev = sysbus_create_varargs("pl181", 0x10005000, sic[22], sic[1], NULL); - dinfo = drive_get_next(IF_SD); + dinfo = drive_get(IF_SD, 0, 0); if (dinfo) { DeviceState *card; @@ -322,7 +322,7 @@ static void versatile_init(MachineState *machine, int board_id) } dev = sysbus_create_varargs("pl181", 0x1000b000, sic[23], sic[2], NULL); - dinfo = drive_get_next(IF_SD); + dinfo = drive_get(IF_SD, 0, 1); if (dinfo) { DeviceState *card; diff --git a/hw/arm/vexpress.c b/hw/arm/vexpress.c index 58481c0762..966758cf82 100644 --- a/hw/arm/vexpress.c +++ b/hw/arm/vexpress.c @@ -625,7 +625,7 @@ static void vexpress_common_init(MachineState *machine) qdev_get_gpio_in(sysctl, ARM_SYSCTL_GPIO_MMC_WPROT)); qdev_connect_gpio_out_named(dev, "card-inserted", 0, qdev_get_gpio_in(sysctl, ARM_SYSCTL_GPIO_MMC_CARDIN)); - dinfo = drive_get_next(IF_SD); + dinfo = drive_get(IF_SD, 0, 0); if (dinfo) { DeviceState *card; @@ -657,7 +657,7 @@ static void vexpress_common_init(MachineState *machine) sysbus_create_simple("pl111", map[VE_CLCD], pic[14]); - dinfo = drive_get_next(IF_PFLASH); + dinfo = drive_get(IF_PFLASH, 0, 0); pflash0 = ve_pflash_cfi01_register(map[VE_NORFLASH0], "vexpress.flash0", dinfo); if (!pflash0) { @@ -673,7 +673,7 @@ static void vexpress_common_init(MachineState *machine) memory_region_add_subregion(sysmem, map[VE_NORFLASHALIAS], flashalias); } - dinfo = drive_get_next(IF_PFLASH); + dinfo = drive_get(IF_PFLASH, 0, 1); if (!ve_pflash_cfi01_register(map[VE_NORFLASH1], "vexpress.flash1", dinfo)) { error_report("vexpress: error registering flash 1");