From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from relay3-d.mail.gandi.net (relay3-d.mail.gandi.net [217.70.183.195]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C841125DD13 for ; Mon, 24 Mar 2025 15:23:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.70.183.195 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742829802; cv=none; b=IT8IU5A21oGOvFbSiSOuO3drowlDKx+CdU9FVCtSx/+To9BiH5CBasLrH1t6OvBvty+qnKx5ESNE1UDkOXxEtMkQMms/R1sUQbglEHX3zwUEDFNdwFcz4vF+WVsiRcuWYP+pVgCP7CuBv/2AV+loWahA95hCTMOHLwmdhxKNyr8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742829802; c=relaxed/simple; bh=O17Rh+VdAK5JbMEssx75JbuOMjbwox9vV2y6ixVE3Fc=; h=Message-ID:Date:MIME-Version:From:Subject:To:Cc:References: In-Reply-To:Content-Type; b=u3lvQnfMlXGR+Nz/q+f0cxZHqhYtDCTOQhTvoAE88g2YiQAWZmkaPRFGZnCHzbFCG0X7OPE8AwBcpd9d2yfeYq51cmpllMTD7so+TrcJfe7P5j/r2kSuxFHF3POrD7ygGBogZZDWPy5kDhj5ZxkBshM/o6T2rKTdQxK39CttVR8= ARC-Authentication-Results:i=1; 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bh=D3gWML1DZeb3CvxHzBB9x65brvewkABGhRCqq6B0PnY=; b=ln7CtI1exG6vcOi0D8LQkBDUTSSa8PJ7+0lhOJGeevy+OtbIOiF++zo28Dalg4zNfchTS2 fEK2Xm+S/Iij0lnfgdSAcfhOaREq8aC3uJEWbQBLHqASVS0ws+0SR7c2+0Z9144a4HrpFe mPENoLrYqCGxIFEvYaAYFjH4/ABYrK9SI/0tORCa6LrfZeteeUDgGqAapMYQUBiWnEGnU1 udD4qZKeqAk1N6NXZQ4qejE/2QXWYQdbnXU4aI5g+KH7AYcElSqQDzEuWgVoEnMhFfl4ek VmCBB0im2AYYF1DvEJCo3cct4rlja9dnpvHFUpPaLCP/AEAtnrPNDdqkXZRvww== Message-ID: <79cd2985-bcdc-4dc1-8aa3-b19d7fd595f9@bootlin.com> Date: Mon, 24 Mar 2025 16:23:12 +0100 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird From: Louis Chauvet Subject: Re: [PATCH v2 34/59] checkpatch: dont warn about unused macro arg on empty body 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, Andy Whitcroft , Joe Perches , Dwaipayan Ray , Lukas Bulwahn References: <20250320185238.447458-1-jim.cromie@gmail.com> <20250320185238.447458-35-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: gggruggvucftvghtrhhoucdtuddrgeefvddrtddtgdduiedtuddvucetufdoteggodetrfdotffvucfrrhhofhhilhgvmecuifetpfffkfdpucggtfgfnhhsuhgsshgtrhhisggvnecuuegrihhlohhuthemuceftddunecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenucfjughrpefkffggfgfhuffvvehfjggtgfesthekredttddvjeenucfhrhhomhepnfhouhhishcuvehhrghuvhgvthcuoehlohhuihhsrdgthhgruhhvvghtsegsohhothhlihhnrdgtohhmqeenucggtffrrghtthgvrhhnpeetfffhtdeigfehffduuedvkeefgfdvuddugfffteetffdvteffgfejvedugffgffenucffohhmrghinhepsghoohhtlhhinhdrtghomhenucfkphepledtrdekledrudeifedruddvjeenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepihhnvghtpeeltddrkeelrdduieefrdduvdejpdhhvghloheplgduledvrdduieekrddtrddvtdgnpdhmrghilhhfrhhomheplhhouhhishdrtghhrghuvhgvthessghoohhtlhhinhdrtghomhdpnhgspghrtghpthhtohepudekpdhrtghpthhtohepjhhimhdrtghrohhmihgvsehgmhgrihhlrdgtohhmpdhrtghpthhtoheplhhinhhugidqkhgvrhhnvghlsehvghgvrhdrkhgvrhhnvghlrdhorhhgpdhrtghpthhtohepughrihdquggvvhgvlheslhhishhtshdrfhhrvggvuggvshhkthhophdrohhrghdprhgtphhtthhopegrmhguqdhgfhigsehlihhsthhsr dhfrhgvvgguvghskhhtohhprdhorhhgpdhrtghpthhtohepihhnthgvlhdqghhvthdquggvvheslhhishhtshdrfhhrvggvuggvshhkthhophdrohhrghdprhgtphhtthhopehinhhtvghlqdhgfhigsehlihhsthhsrdhfrhgvvgguvghskhhtohhprdhorhhgpdhrtghpthhtohepihhnthgvlhdqghhfgidqthhrhigsohhtsehlihhsthhsrdhfrhgvvgguvghskhhtohhprdhorhhgpdhrtghpthhtohepjhgsrghrohhnsegrkhgrmhgrihdrtghomh X-GND-Sasl: louis.chauvet@bootlin.com Le 20/03/2025 à 19:52, Jim Cromie a écrit : > we currently get: > WARNING: Argument 'name' is not used in function-like macro > on: > #define DRM_CLASSMAP_USE(name) /* nothing here */ > > Following this advice is wrong here, and shouldn't be fixed by > ignoring args altogether; the macro should properly fail if invoked > with 0 or 2+ args. > > cc: Andy Whitcroft > cc: Joe Perches > cc: Dwaipayan Ray > cc: Lukas Bulwahn > Signed-off-by: Jim Cromie Reviewed-by: Louis Chauvet > --- > scripts/checkpatch.pl | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl > index 7b28ad331742..0c4f578ea6e7 100755 > --- a/scripts/checkpatch.pl > +++ b/scripts/checkpatch.pl > @@ -6037,7 +6037,7 @@ sub process { > } > > # check if this is an unused argument > - if ($define_stmt !~ /\b$arg\b/) { > + if ($define_stmt !~ /\b$arg\b/ && $define_stmt) { > WARN("MACRO_ARG_UNUSED", > "Argument '$arg' is not used in function-like macro\n" . "$herectx"); > } -- Louis Chauvet, Bootlin Embedded Linux and Kernel engineering https://bootlin.com