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 49921C3600D for ; Mon, 24 Mar 2025 15:10:38 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id C6ABB10E417; Mon, 24 Mar 2025 15:10:36 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=bootlin.com header.i=@bootlin.com header.b="XT625T4x"; dkim-atps=neutral Received: from relay1-d.mail.gandi.net (relay1-d.mail.gandi.net [217.70.183.193]) by gabe.freedesktop.org (Postfix) with ESMTPS id 67DB810E3C4; Mon, 24 Mar 2025 15:10:34 +0000 (UTC) Received: by mail.gandi.net (Postfix) with ESMTPSA id 459914438E; Mon, 24 Mar 2025 15:10:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1742829032; 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=ymxOGVKKP6tHT25NA5aYFP9BSXgTjzIC5jPqWQl7U6U=; b=XT625T4xCTnYAWN2jH6rXqWVXtg1Ik8xpZg8ZF1jYGCi8HfW0qaOoIOlk3RBFcpKNiC3WK KCBI7Vn8q7eD1OAIT/5g7nd8IQGW01QCNANcyVe3Iyw6MZ7/3HKhfUGztTE4egiu3lkGRk 84Z6KkgeqUL0CCc8VPlMhnvhhGckL4hu//5hMB2yzCGpPHTWKBST4sCPnj9S4exAqhECjB meZOIspk/ovwOxuMkUd8+cbmXx6sqB6AlWfvq7xAs0bqVqe5Wp9Bnc3tI025clPd44+6qi Z55PZsOUgxzll7gTq7mGLEuEE1uuNzqfpVYEVsQKWpdB51DA/f9W/uRjJvcg/Q== Message-ID: Date: Mon, 24 Mar 2025 16:10:27 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird From: Louis Chauvet Subject: Re: [PATCH v2 11/59] dyndbg: macrofy a 2-index for-loop pattern To: Jim Cromie , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, intel-gvt-dev@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, intel-gfx-trybot@lists.freedesktop.org Cc: jbaron@akamai.com, gregkh@linuxfoundation.org, ukaszb@chromium.org, daniel.vetter@ffwll.ch, tvrtko.ursulin@linux.intel.com, jani.nikula@intel.com, ville.syrjala@linux.intel.com References: <20250320185238.447458-1-jim.cromie@gmail.com> <20250320185238.447458-12-jim.cromie@gmail.com> 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: gggruggvucftvghtrhhoucdtuddrgeefvddrtddtgdduiedttdelucetufdoteggodetrfdotffvucfrrhhofhhilhgvmecuifetpfffkfdpucggtfgfnhhsuhgsshgtrhhisggvnecuuegrihhlohhuthemuceftddunecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenucfjughrpefkffggfgfhuffvvehfjggtgfesthekredttddvjeenucfhrhhomhepnfhouhhishcuvehhrghuvhgvthcuoehlohhuihhsrdgthhgruhhvvghtsegsohhothhlihhnrdgtohhmqeenucggtffrrghtthgvrhhnpeetfffhtdeigfehffduuedvkeefgfdvuddugfffteetffdvteffgfejvedugffgffenucffohhmrghinhepsghoohhtlhhinhdrtghomhenucfkphepledtrdekledrudeifedruddvjeenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepihhnvghtpeeltddrkeelrdduieefrdduvdejpdhhvghloheplgduledvrdduieekrddtrddvtdgnpdhmrghilhhfrhhomheplhhouhhishdrtghhrghuvhgvthessghoohhtlhhinhdrtghomhdpnhgspghrtghpthhtohepudegpdhrtghpthhtohepjhhimhdrtghrohhmihgvsehgmhgrihhlrdgtohhmpdhrtghpthhtoheplhhinhhugidqkhgvrhhnvghlsehvghgvrhdrkhgvrhhnvghlrdhorhhgpdhrtghpthhtohepughrihdquggvvhgvlheslhhishhtshdrfhhrvggvuggvshhkthhophdrohhrghdprhgtphhtthhopegrmhguqdhgfhigsehlihhsthhsr dhfrhgvvgguvghskhhtohhprdhorhhgpdhrtghpthhtohepihhnthgvlhdqghhvthdquggvvheslhhishhtshdrfhhrvggvuggvshhkthhophdrohhrghdprhgtphhtthhopehinhhtvghlqdhgfhigsehlihhsthhsrdhfrhgvvgguvghskhhtohhprdhorhhgpdhrtghpthhtohepihhnthgvlhdqghhfgidqthhrhigsohhtsehlihhsthhsrdhfrhgvvgguvghskhhtohhprdhorhhgpdhrtghpthhtohepjhgsrghrohhnsegrkhgrmhgrihdrtghomh X-GND-Sasl: louis.chauvet@bootlin.com X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Le 20/03/2025 à 19:51, Jim Cromie a écrit : > dynamic-debug has several __sections, each with , > num_, and it iterates over these with a 2-index for-loop. > These loops are fiddly with the 2 names. > > We have only 2 such loops now, but are getting more soon; lets > embed/abstract the fiddlyness in the for_subvec() macro, and avoid > repeating it going forward. > > Signed-off-by: Jim Cromie > --- > lib/dynamic_debug.c | 20 +++++++++++++++++--- > 1 file changed, 17 insertions(+), 3 deletions(-) > > diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c > index d5572712ce55..94f6c8fd787b 100644 > --- a/lib/dynamic_debug.c > +++ b/lib/dynamic_debug.c > @@ -128,6 +128,21 @@ do { \ > #define v3pr_info(fmt, ...) vnpr_info(3, fmt, ##__VA_ARGS__) > #define v4pr_info(fmt, ...) vnpr_info(4, fmt, ##__VA_ARGS__) > > + > +/* > + * simplify a repeated for-loop pattern walking N steps in a T _vec > + * member inside a struct _box. It expects int i and T *_sp to be > + * declared in the caller. > + * @_i: caller provided counter. > + * @_sp: cursor into _vec, to examine each item. > + * @_box: ptr to a struct containing @_vec member > + * @_vec: name of a sub-struct member in _box, with array-ref and length > + */ Nice macro to make the code easier to read! Reviewed-by: Louis Chauvet > +#define for_subvec(_i, _sp, _box, _vec) \ > + for ((_i) = 0, (_sp) = (_box)->_vec; \ > + (_i) < (_box)->num_##_vec; \ > + (_i)++, (_sp)++) > + > static void vpr_info_dq(const struct ddebug_query *query, const char *msg) > { > /* trim any trailing newlines */ > @@ -156,7 +171,7 @@ static struct ddebug_class_map *ddebug_find_valid_class(struct ddebug_table cons > struct ddebug_class_map *map; > int i, idx; > > - for (map = dt->classes, i = 0; i < dt->num_classes; i++, map++) { > + for_subvec(i, map, dt, classes) { > idx = match_string(map->class_names, map->length, class_string); > if (idx >= 0) { > *class_id = idx + map->base; > @@ -1221,8 +1236,7 @@ static void ddebug_attach_module_classes(struct ddebug_table *dt, struct _ddebug > * the builtin/modular classmap vector/section. Save the start > * and length of the subrange at its edges. > */ > - for (cm = di->classes, i = 0; i < di->num_classes; i++, cm++) { > - > + for_subvec(i, cm, di, classes) { > if (!strcmp(cm->mod_name, dt->mod_name)) { > if (!nc) { > v2pr_info("start subrange, class[%d]: module:%s base:%d len:%d ty:%d\n", -- Louis Chauvet, Bootlin Embedded Linux and Kernel engineering https://bootlin.com