From patchwork Thu May 28 21:39:41 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Roman Kagan X-Patchwork-Id: 11576991 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 8335E1391 for ; Thu, 28 May 2020 21:40:55 +0000 (UTC) Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (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 5EDA52072D for ; Thu, 28 May 2020 21:40:55 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=yandex-team.ru header.i=@yandex-team.ru header.b="a61iP8p1" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5EDA52072D Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=yandex-team.ru Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1jeQGE-0002q3-4s; Thu, 28 May 2020 21:40:22 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1jeQGD-0002pi-8R for xen-devel@lists.xenproject.org; Thu, 28 May 2020 21:40:21 +0000 X-Inumbo-ID: d2d25b1e-a12b-11ea-9947-bc764e2007e4 Received: from forwardcorp1p.mail.yandex.net (unknown [2a02:6b8:0:1472:2741:0:8b6:217]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id d2d25b1e-a12b-11ea-9947-bc764e2007e4; Thu, 28 May 2020 21:40:18 +0000 (UTC) Received: from mxbackcorp1g.mail.yandex.net (mxbackcorp1g.mail.yandex.net [IPv6:2a02:6b8:0:1402::301]) by forwardcorp1p.mail.yandex.net (Yandex) with ESMTP id A2AEC2E094D; Fri, 29 May 2020 00:40:17 +0300 (MSK) Received: from vla5-58875c36c028.qloud-c.yandex.net (vla5-58875c36c028.qloud-c.yandex.net [2a02:6b8:c18:340b:0:640:5887:5c36]) by mxbackcorp1g.mail.yandex.net (mxbackcorp/Yandex) with ESMTP id XyXqfhV9ak-eBImwSEL; Fri, 29 May 2020 00:40:17 +0300 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yandex-team.ru; s=default; t=1590702017; bh=e/snD3eRLt3OD/77mBucMy84xJYC36ARRHwF7w0zqIc=; h=In-Reply-To:Message-Id:References:Date:Subject:To:From:Cc; b=a61iP8p1OPQXlCsL4kqDkdM1sPBrQA9F1w+ycRSumQdjV4xDstR5Ny80gfxO/6esp /FcUhqt6Jujttn9Mm77h/cHfZ5Mv6IY0LDDhTjwmgpFyFO7ZrjYnwed7WcpG6NBBba HAkjADgLWt15cvwTlBp0FcTWXNGN8BqNNOC1Cx5g= Authentication-Results: mxbackcorp1g.mail.yandex.net; dkim=pass header.i=@yandex-team.ru Received: from dynamic-vpn.dhcp.yndx.net (dynamic-vpn.dhcp.yndx.net [2a02:6b8:b081:1318::1:10]) by vla5-58875c36c028.qloud-c.yandex.net (smtpcorp/Yandex) with ESMTPSA id KqoauPPys3-eBXqvQYw; Fri, 29 May 2020 00:40:11 +0300 (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (Client certificate not present) From: Roman Kagan To: qemu-devel@nongnu.org Subject: [PATCH v7 3/8] qdev-properties: blocksize: use same limits in code and description Date: Fri, 29 May 2020 00:39:41 +0300 Message-Id: <20200528213946.1636444-4-rvkagan@yandex-team.ru> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200528213946.1636444-1-rvkagan@yandex-team.ru> References: <20200528213946.1636444-1-rvkagan@yandex-team.ru> MIME-Version: 1.0 X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , Fam Zheng , Stefano Stabellini , =?utf-8?q?Daniel_P=2E_Berrang?= =?utf-8?q?=C3=A9?= , Eduardo Habkost , qemu-block@nongnu.org, Paul Durrant , Eric Blake , "Michael S. Tsirkin" , Laurent Vivier , Max Reitz , Anthony Perard , Gerd Hoffmann , Stefan Hajnoczi , Paolo Bonzini , Keith Busch , xen-devel@lists.xenproject.org, =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , John Snow Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" Make it easier (more visible) to maintain the limits on the blocksize properties in sync with the respective description, by using macros both in the code and in the description. Signed-off-by: Roman Kagan Reviewed-by: Eric Blake --- v4 -> v5: - split out into separate patch [Philippe] hw/core/qdev-properties.c | 21 +++++++++++++++------ 1 file changed, 15 insertions(+), 6 deletions(-) diff --git a/hw/core/qdev-properties.c b/hw/core/qdev-properties.c index cc924815da..249dc69bd8 100644 --- a/hw/core/qdev-properties.c +++ b/hw/core/qdev-properties.c @@ -729,6 +729,13 @@ const PropertyInfo qdev_prop_pci_devfn = { /* --- blocksize --- */ +/* lower limit is sector size */ +#define MIN_BLOCK_SIZE 512 +#define MIN_BLOCK_SIZE_STR stringify(MIN_BLOCK_SIZE) +/* upper limit is the max power of 2 that fits in uint16_t */ +#define MAX_BLOCK_SIZE 32768 +#define MAX_BLOCK_SIZE_STR stringify(MAX_BLOCK_SIZE) + static void set_blocksize(Object *obj, Visitor *v, const char *name, void *opaque, Error **errp) { @@ -736,8 +743,6 @@ static void set_blocksize(Object *obj, Visitor *v, const char *name, Property *prop = opaque; uint16_t value, *ptr = qdev_get_prop_ptr(dev, prop); Error *local_err = NULL; - const int64_t min = 512; - const int64_t max = 32768; if (dev->realized) { qdev_prop_set_after_realize(dev, name, errp); @@ -750,9 +755,12 @@ static void set_blocksize(Object *obj, Visitor *v, const char *name, return; } /* value of 0 means "unset" */ - if (value && (value < min || value > max)) { - error_setg(errp, QERR_PROPERTY_VALUE_OUT_OF_RANGE, - dev->id ? : "", name, (int64_t)value, min, max); + if (value && (value < MIN_BLOCK_SIZE || value > MAX_BLOCK_SIZE)) { + error_setg(errp, + "Property %s.%s doesn't take value %" PRIu16 + " (minimum: " MIN_BLOCK_SIZE_STR + ", maximum: " MAX_BLOCK_SIZE_STR ")", + dev->id ? : "", name, value); return; } @@ -769,7 +777,8 @@ static void set_blocksize(Object *obj, Visitor *v, const char *name, const PropertyInfo qdev_prop_blocksize = { .name = "uint16", - .description = "A power of two between 512 and 32768", + .description = "A power of two between " MIN_BLOCK_SIZE_STR + " and " MAX_BLOCK_SIZE_STR, .get = get_uint16, .set = set_blocksize, .set_default_value = set_default_value_uint,