Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753567Ab2ENFAT (ORCPT ); Mon, 14 May 2012 01:00:19 -0400 Received: from hqemgate03.nvidia.com ([216.228.121.140]:10147 "EHLO hqemgate03.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750754Ab2ENFAR convert rfc822-to-8bit (ORCPT ); Mon, 14 May 2012 01:00:17 -0400 X-PGP-Universal: processed; by hqnvupgp07.nvidia.com on Sun, 13 May 2012 21:59:21 -0700 From: Hiroshi Doyu To: "joe@perches.com" CC: "linux-kernel@vger.kernel.org" , "linux-tegra@vger.kernel.org" Date: Mon, 14 May 2012 07:00:08 +0200 Subject: Re: [RFC 1/1] driver core: Add dev_*_ratelimited() family Thread-Topic: [RFC 1/1] driver core: Add dev_*_ratelimited() family Thread-Index: Ac0xjnLrHRffLYvjRGuHIggdB9qwtg== Message-ID: <20120514.080008.1401340884821155549.hdoyu@nvidia.com> References: <20120512.135227.1196366807162247040.hdoyu@nvidia.com><1336836695.17605.12.camel@joe2Laptop> In-Reply-To: <1336836695.17605.12.camel@joe2Laptop> Accept-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-nvconfidentiality: public acceptlanguage: en-US Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1970 Lines: 51 Hi Joe, Joe Perches wrote @ Sat, 12 May 2012 17:31:35 +0200: > On Sat, 2012-05-12 at 12:52 +0200, Hiroshi Doyu wrote: > > Hi, > > > > An unclosed "if" statement in the MACRO seems a bit risky, but I don't > > have any better/simple solution for this, ATM. Is there any alternative? > > maybe something like: > > #define dev_ratelimited_level(dev, level, fmt, ...) > do { > static DEFINE_RATELIMIT_STATE(_rs, \ > DEFAULT_RATELIMIT_INTERVAL, \ > DEFAULT_RATELIMIT_BURST); \ > if (__ratelimit(&_rs)) \ > dev_##level(fmt, ##__VA_ARGS__); \ > } while (0) > > #define dev_emerg_ratelimited(dev, fmt, ...) \ > dev_ratelimited_level(dev, emerg, fmt, ##__VA_ARGS__) > #define dev_alert_ratelimited(dev, fmt, ...) \ > dev_ratelimited_level(dev, alert, fmt, ##__VA_ARGS__) > #define dev_crit_ratelimited(dev, fmt, ...) \ > dev_ratelimited_level(dev, crit, fmt, ##__VA_ARGS__) > #define dev_err_ratelimited(dev, fmt, ...) \ > dev_ratelimited_level(dev, err, fmt, ##__VA_ARGS__) > #define dev_warn_ratelimited(dev, fmt, ...) \ > dev_ratelimited_level(dev, warn, fmt, ##__VA_ARGS__) > #define dev_notice_ratelimited(dev, fmt, ...) \ > dev_ratelimited_level(dev, notice, fmt, ##__VA_ARGS__) > #define dev_info_ratelimited(dev, fmt, ...) \ > dev_ratelimited_level(dev, info, fmt, ##__VA_ARGS__) > #define dev_dbg_ratelimited(dev, fmt, ...) \ > dev_ratelimited_level(dev, dbg, fmt, ##__VA_ARGS__) "dev" isn't handled separately with __VA_ARGS__, and failed to build as below: Example: dev_err_ratelimited(&pdev->dev, "%d\n", __LINE__); After preprocessded: do { ... if (___ratelimit(&_rs, __func__)) dev_err("%d\n", 18); } while (0); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/