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 771FFD1D884 for ; Thu, 4 Dec 2025 08:08:55 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id E097410E8DD; Thu, 4 Dec 2025 08:08:54 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.b="L+ajhfz7"; dkim-atps=neutral Received: from sea.source.kernel.org (sea.source.kernel.org [172.234.252.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id 9F8A510E8DD for ; Thu, 4 Dec 2025 08:08:53 +0000 (UTC) Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id 62FA34054A; Thu, 4 Dec 2025 08:08:53 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id C7E82C4CEFB; Thu, 4 Dec 2025 08:08:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1764835733; bh=ot+bj15RQwuY2+tmJQNLmE5SXRiaXqLN0hPxq+DPkt0=; h=Date:Subject:From:To:Cc:References:In-Reply-To:From; b=L+ajhfz7OKmbfJcVyi31iO88A7sFXYsX3Er+OM8ozilKD5ynn4RdbmCCQAQdWSRT8 1WJLHjgYroYGaGG5kojH9wj94Mo3m6seM1WAbNIPS6h69H5ouQn2ltSAIPb34AHOT1 FBYzJ8Hl9FY+49rXrmjM5Szd2Ef7UptC7Du4EkiYnCUGmInZoD3Rrf9RMwYxKGLhx6 wpXEcT9vei7Xj30xM93iSOZuWijOVwAtSfR0irWDsv0zoenZwJLt4aDu7Z/Th0/WTK IaiswfbRji7G/GOIGCwDbHegIWJjVwjNxBVdd7B3nkfAEZ5Tt7Shyrx9J5U14LhtxZ f5kow1C8Ypzig== Message-ID: <44e3934e-cc85-4c65-a059-39f439d8c302@kernel.org> Date: Thu, 4 Dec 2025 09:08:50 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [RFC PATCH v3 02/10] drm/amdgpu: Add cwsr functions From: Krzysztof Kozlowski To: "Lazar, Lijo" , amd-gfx@lists.freedesktop.org Cc: Hawking.Zhang@amd.com, Alexander.Deucher@amd.com, Christian.Koenig@amd.com, Jesse.Zhang@amd.com References: <20251203130436.745633-1-lijo.lazar@amd.com> <20251203130436.745633-3-lijo.lazar@amd.com> <80770cbc-0014-4bec-9e3a-1d3db1b98984@kernel.org> Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit X-BeenThere: amd-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Discussion list for AMD gfx List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: amd-gfx-bounces@lists.freedesktop.org Sender: "amd-gfx" On 04/12/2025 09:06, Krzysztof Kozlowski wrote: > On 04/12/2025 09:03, Lazar, Lijo wrote: >> >> >> On 12/4/2025 1:06 PM, Krzysztof Kozlowski wrote: >>> On 03/12/2025 13:54, Lijo Lazar wrote: >>>> + BUILD_BUG_ON(sizeof(cwsr_trap_gfx11_hex) > PAGE_SIZE); >>>> + cwsr_info->isa_buf = cwsr_trap_gfx11_hex; >>>> + cwsr_info->isa_sz = sizeof(cwsr_trap_gfx11_hex); >>>> + } else { >>>> + BUILD_BUG_ON(sizeof(cwsr_trap_gfx12_hex) > >>>> + AMDGPU_CWSR_TBA_MAX_SIZE); >>>> + cwsr_info->isa_buf = cwsr_trap_gfx12_hex; >>>> + cwsr_info->isa_sz = sizeof(cwsr_trap_gfx12_hex); >>>> + } >>>> +} >>>> + >>>> +int amdgpu_cwsr_init(struct amdgpu_device *adev) >>>> +{ >>>> + struct amdgpu_cwsr_info *cwsr_info __free(kfree) = NULL; >>> >>> >>> This is an undesired syntax explicitly documented as one to avoid. You >>> need here proper assignment, not NULL. Please don't use cleanup.h if you >>> do not intend to follow it because it does not make the code simpler. >>> >> >> Could you explain more about the hazard here? There are no multiple >> cleanup variables declared in this case. >> > > I am not saying there is a hazard. I am saying that you do not follow > coding style and very explicit, documented rule. There are exceptions of > course, but they need reason and such is missing here. You made the code > worse here, more confusing with the fake assignment, fake constructor. > > If you do not want to follow cleanup.h coding style, then simply do not > use cleanup.h. Cleanup.h is to make code simpler but worse. s/but worse/,not worse/ Best regards, Krzysztof