From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 87E3BC021BB for ; Mon, 24 Feb 2025 15:20:15 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 2796E10E2CA; Mon, 24 Feb 2025 15:20:15 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=bootlin.com header.i=@bootlin.com header.b="XykCKSk7"; dkim-atps=neutral Received: from mslow3.mail.gandi.net (mslow3.mail.gandi.net [217.70.178.249]) by gabe.freedesktop.org (Postfix) with ESMTPS id 9FBC710E2CA for ; Mon, 24 Feb 2025 15:20:09 +0000 (UTC) Received: from relay9-d.mail.gandi.net (relay9-d.mail.gandi.net [217.70.183.199]) by mslow3.mail.gandi.net (Postfix) with ESMTP id 4BB7B583731 for ; Mon, 24 Feb 2025 14:48:40 +0000 (UTC) Received: by mail.gandi.net (Postfix) with ESMTPSA id 6AADE44281; Mon, 24 Feb 2025 14:48:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1740408518; 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:autocrypt:autocrypt; bh=VEu+apYGnOwICjaNbh6W9XYrg2WdikujEa9NsWxIwdA=; b=XykCKSk7GsyjIsGNSPZG4n25oh6Til8w7kpm+zbLLGKh3wfkW+DSQIGMD4frv6XTQW5W2W Z7XlAZG029HyHzFme8EQjcPyW1EoZXWEiaCe2KDcpny6EUuCzqeHLpU7tze+APujxnL70P OmjBRkIV+8cU+XUzW+xiS+Wcds5wmMiLbMP/RgDhsirJK5oS1KKW9okexKhMqBQsnKttZK 7BIs+o4fkP9N5nkVwdWhVvHbfLcwgqpY1wpeIWhdBIHpN/w8xqEZ12vgH0SdbCo4FWTaJk xL9UNFp0lsQy2Q1z73tMxlDJbNWR1sh4OdV2ZrwTadvoOAWGfPL0Otzr4bbS+g== Message-ID: <6cf7d81e-9069-4632-96f3-daccc033bfc9@bootlin.com> Date: Mon, 24 Feb 2025 15:48:37 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird From: Louis Chauvet Subject: Re: [PATCH 5/5] drm/print: require struct drm_device for drm_err() and friends To: Jani Nikula , dri-devel@lists.freedesktop.org Cc: intel-gfx@lists.freedesktop.org References: Content-Language: en-US Autocrypt: addr=louis.chauvet@bootlin.com; 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charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-GND-State: clean X-GND-Score: -100 X-GND-Cause: gggruggvucftvghtrhhoucdtuddrgeefvddrtddtgdejledtiecutefuodetggdotefrodftvfcurfhrohhfihhlvgemucfitefpfffkpdcuggftfghnshhusghstghrihgsvgenuceurghilhhouhhtmecufedtudenucesvcftvggtihhpihgvnhhtshculddquddttddmnecujfgurhepkfffgggfhffuvfevfhgjtgfgsehtkeertddtvdejnecuhfhrohhmpefnohhuihhsucevhhgruhhvvghtuceolhhouhhishdrtghhrghuvhgvthessghoohhtlhhinhdrtghomheqnecuggftrfgrthhtvghrnhepteffhfdtiefgheffudeuvdekfefgvdduudfgffetteffvdetfffgjeevudfggfffnecuffhomhgrihhnpegsohhothhlihhnrdgtohhmnecukfhppedvtddtudemkeeiudemgedugedtmegtkeeitdemheguiedumeeifeefleemieeirgeimegvtdejheenucevlhhushhtvghrufhiiigvpedunecurfgrrhgrmhepihhnvghtpedvtddtudemkeeiudemgedugedtmegtkeeitdemheguiedumeeifeefleemieeirgeimegvtdejhedphhgvlhhopeglkffrggeimedvtddtudemkeeiudemgedugedtmegtkeeitdemheguiedumeeifeefleemieeirgeimegvtdejhegnpdhmrghilhhfrhhomheplhhouhhishdrtghhrghuvhgvthessghoohhtlhhinhdrtghomhdpnhgspghrtghpthhtohepfedprhgtphhtthhopehjrghnihdrnhhikhhulhgrsehinhhtvghlrdgtohhmpdhrtghpthhtohepughrihdquggvvhgvl heslhhishhtshdrfhhrvggvuggvshhkthhophdrohhrghdprhgtphhtthhopehinhhtvghlqdhgfhigsehlihhsthhsrdhfrhgvvgguvghskhhtohhprdhorhhg X-GND-Sasl: louis.chauvet@bootlin.com X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Le 23/01/2025 à 16:09, Jani Nikula a écrit : > The expectation is that the struct drm_device based logging helpers get > passed an actual struct drm_device pointer rather than some random > struct pointer where you can dereference the ->dev member. > > Add a static inline helper to convert struct drm_device to struct > device, with the main benefit being the type checking of the macro > argument. > > As a side effect, this also reduces macro argument double references. > > Signed-off-by: Jani Nikula Reviewed-by: Louis Chauvet > --- > include/drm/drm_print.h | 41 +++++++++++++++++++++++------------------ > 1 file changed, 23 insertions(+), 18 deletions(-) > > diff --git a/include/drm/drm_print.h b/include/drm/drm_print.h > index 9732f514566d..f31eba1c7cab 100644 > --- a/include/drm/drm_print.h > +++ b/include/drm/drm_print.h > @@ -584,9 +584,15 @@ void __drm_dev_dbg(struct _ddebug *desc, const struct device *dev, > * Prefer drm_device based logging over device or prink based logging. > */ > > +/* Helper to enforce struct drm_device type */ > +static inline struct device *__drm_to_dev(const struct drm_device *drm) > +{ > + return drm ? drm->dev : NULL; > +} > + > /* Helper for struct drm_device based logging. */ > #define __drm_printk(drm, level, type, fmt, ...) \ > - dev_##level##type((drm) ? (drm)->dev : NULL, "[drm] " fmt, ##__VA_ARGS__) > + dev_##level##type(__drm_to_dev(drm), "[drm] " fmt, ##__VA_ARGS__) > > > #define drm_info(drm, fmt, ...) \ > @@ -620,25 +626,25 @@ void __drm_dev_dbg(struct _ddebug *desc, const struct device *dev, > > > #define drm_dbg_core(drm, fmt, ...) \ > - drm_dev_dbg((drm) ? (drm)->dev : NULL, DRM_UT_CORE, fmt, ##__VA_ARGS__) > -#define drm_dbg_driver(drm, fmt, ...) \ > - drm_dev_dbg((drm) ? (drm)->dev : NULL, DRM_UT_DRIVER, fmt, ##__VA_ARGS__) > + drm_dev_dbg(__drm_to_dev(drm), DRM_UT_CORE, fmt, ##__VA_ARGS__) > +#define drm_dbg_driver(drm, fmt, ...) \ > + drm_dev_dbg(__drm_to_dev(drm), DRM_UT_DRIVER, fmt, ##__VA_ARGS__) > #define drm_dbg_kms(drm, fmt, ...) \ > - drm_dev_dbg((drm) ? (drm)->dev : NULL, DRM_UT_KMS, fmt, ##__VA_ARGS__) > + drm_dev_dbg(__drm_to_dev(drm), DRM_UT_KMS, fmt, ##__VA_ARGS__) > #define drm_dbg_prime(drm, fmt, ...) \ > - drm_dev_dbg((drm) ? (drm)->dev : NULL, DRM_UT_PRIME, fmt, ##__VA_ARGS__) > + drm_dev_dbg(__drm_to_dev(drm), DRM_UT_PRIME, fmt, ##__VA_ARGS__) > #define drm_dbg_atomic(drm, fmt, ...) \ > - drm_dev_dbg((drm) ? (drm)->dev : NULL, DRM_UT_ATOMIC, fmt, ##__VA_ARGS__) > + drm_dev_dbg(__drm_to_dev(drm), DRM_UT_ATOMIC, fmt, ##__VA_ARGS__) > #define drm_dbg_vbl(drm, fmt, ...) \ > - drm_dev_dbg((drm) ? (drm)->dev : NULL, DRM_UT_VBL, fmt, ##__VA_ARGS__) > + drm_dev_dbg(__drm_to_dev(drm), DRM_UT_VBL, fmt, ##__VA_ARGS__) > #define drm_dbg_state(drm, fmt, ...) \ > - drm_dev_dbg((drm) ? (drm)->dev : NULL, DRM_UT_STATE, fmt, ##__VA_ARGS__) > + drm_dev_dbg(__drm_to_dev(drm), DRM_UT_STATE, fmt, ##__VA_ARGS__) > #define drm_dbg_lease(drm, fmt, ...) \ > - drm_dev_dbg((drm) ? (drm)->dev : NULL, DRM_UT_LEASE, fmt, ##__VA_ARGS__) > + drm_dev_dbg(__drm_to_dev(drm), DRM_UT_LEASE, fmt, ##__VA_ARGS__) > #define drm_dbg_dp(drm, fmt, ...) \ > - drm_dev_dbg((drm) ? (drm)->dev : NULL, DRM_UT_DP, fmt, ##__VA_ARGS__) > + drm_dev_dbg(__drm_to_dev(drm), DRM_UT_DP, fmt, ##__VA_ARGS__) > #define drm_dbg_drmres(drm, fmt, ...) \ > - drm_dev_dbg((drm) ? (drm)->dev : NULL, DRM_UT_DRMRES, fmt, ##__VA_ARGS__) > + drm_dev_dbg(__drm_to_dev(drm), DRM_UT_DRMRES, fmt, ##__VA_ARGS__) > > #define drm_dbg(drm, fmt, ...) drm_dbg_driver(drm, fmt, ##__VA_ARGS__) > > @@ -727,10 +733,9 @@ void __drm_err(const char *format, ...); > #define __DRM_DEFINE_DBG_RATELIMITED(category, drm, fmt, ...) \ > ({ \ > static DEFINE_RATELIMIT_STATE(rs_, DEFAULT_RATELIMIT_INTERVAL, DEFAULT_RATELIMIT_BURST);\ > - const struct drm_device *drm_ = (drm); \ > \ > if (drm_debug_enabled(DRM_UT_ ## category) && __ratelimit(&rs_)) \ > - drm_dev_printk(drm_ ? drm_->dev : NULL, KERN_DEBUG, fmt, ## __VA_ARGS__); \ > + drm_dev_printk(__drm_to_dev(drm), KERN_DEBUG, fmt, ## __VA_ARGS__); \ > }) > > #define drm_dbg_ratelimited(drm, fmt, ...) \ > @@ -752,13 +757,13 @@ void __drm_err(const char *format, ...); > /* Helper for struct drm_device based WARNs */ > #define drm_WARN(drm, condition, format, arg...) \ > WARN(condition, "%s %s: [drm] " format, \ > - dev_driver_string((drm)->dev), \ > - dev_name((drm)->dev), ## arg) > + dev_driver_string(__drm_to_dev(drm)), \ > + dev_name(__drm_to_dev(drm)), ## arg) > > #define drm_WARN_ONCE(drm, condition, format, arg...) \ > WARN_ONCE(condition, "%s %s: [drm] " format, \ > - dev_driver_string((drm)->dev), \ > - dev_name((drm)->dev), ## arg) > + dev_driver_string(__drm_to_dev(drm)), \ > + dev_name(__drm_to_dev(drm)), ## arg) > > #define drm_WARN_ON(drm, x) \ > drm_WARN((drm), (x), "%s", \ -- Louis Chauvet, Bootlin Embedded Linux and Kernel engineering https://bootlin.com