Received: by 2002:a05:6a10:a0d1:0:0:0:0 with SMTP id j17csp354423pxa; Fri, 21 Aug 2020 08:58:01 -0700 (PDT) X-Google-Smtp-Source: ABdhPJzLRY1qZ/3KGSTpdZCIvzHGCtrhQysFqaly80eLf59qsMSKi7NacZ1lN+O1vBLn27St5QKK X-Received: by 2002:a05:6402:3121:: with SMTP id dd1mr3516058edb.72.1598025481220; Fri, 21 Aug 2020 08:58:01 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1598025481; cv=none; d=google.com; s=arc-20160816; b=weIAKIrfVgXr+c7Ps5GMEnoXrO7UrSzNJkZ0WyDjMReGcAQdLYdks0qwc7iiJAVZBY VhwYjIQJAHtdj0wb1S+iL/a3ZwLt6OzUr2Zob8eqfdAOAPXwDzW6q0+4SepBRU++LhQI eK62HwZWlKuAVl74bAj5+IAWJyF2HjDmMYN5J0EsHlwj61Av6CiwxM1aFKkfBn1hXsHp CTrjVv5MzDFSvBvPrg17mo40UeTVKSQSC3uI9e6TBdRG9nsqNclpmDIzg0h093VRgJfx paa/vfRIWa4F7+0TDBulaOE0qMtZ5p1HN37sAkyPDpwagDiPKw+nOV6RaIV8Gx/mma7s lyRQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:in-reply-to:content-disposition :mime-version:references:message-id:subject:cc:to:from:date; bh=nb5fymkWbn5RMvvy84l4fofu4niH+ilwg7qveYKk7Tk=; b=qg1h2l7UzkOKMdcWzP343IqMU8N6mfzge0h2lpTIl5u69evkLI9b8tdNYp6a6jmSL4 91BRo3jpSTvYG+gIktbj1gXN7Zt7bMu9KIzS2Z+1KBKkk/1gCyGSVBQROIqXmY4oT5NJ 9cz+k1yO7CT0NhzypHsjZdeL6T5Z/GwRDWQHMYBKdH0Lb6oWygs0F50TeC2Bh1WMldVZ +Ekkx/q2D8jgmWHE2RDGd4z+x04pkLM3Ro5mRNthvgjBLIenY4Y2FVTpT5r2K13PvLl1 9hk+sCub9obGSfcVjnVTadZdFgFa/HFrbAcf1U5yPaLPuXNPoqlMhXyWjU2ZUmKx9/Rf vK7Q== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id ds22si1602393ejc.535.2020.08.21.08.57.36; Fri, 21 Aug 2020 08:58:01 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728049AbgHUP47 (ORCPT + 99 others); Fri, 21 Aug 2020 11:56:59 -0400 Received: from asavdk4.altibox.net ([109.247.116.15]:39316 "EHLO asavdk4.altibox.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726542AbgHUP44 (ORCPT ); Fri, 21 Aug 2020 11:56:56 -0400 Received: from ravnborg.org (unknown [188.228.123.71]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by asavdk4.altibox.net (Postfix) with ESMTPS id AC78180516; Fri, 21 Aug 2020 17:56:51 +0200 (CEST) Date: Fri, 21 Aug 2020 17:56:50 +0200 From: Sam Ravnborg To: Mauro Carvalho Chehab Cc: Greg Kroah-Hartman , Neil Armstrong , Xinliang Liu , Wanchun Zheng , linuxarm@huawei.com, dri-devel , Andrzej Hajda , Laurent Pinchart , devel@driverdev.osuosl.org, Daniel Borkmann , John Fastabend , Xiubin Zhang , Wei Xu , David Airlie , Xinwei Kong , Tomi Valkeinen , Bogdan Togorean , Laurentiu Palcu , linux-media@vger.kernel.org, devicetree@vger.kernel.org, Liwei Cai , Jesper Dangaard Brouer , Manivannan Sadhasivam , Chen Feng , Alexei Starovoitov , linaro-mm-sig@lists.linaro.org, Rob Herring , Jakub Kicinski , mauro.chehab@huawei.com, Rob Clark , linux-arm-kernel@lists.infradead.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Liuyao An , Rongrong Zou , bpf@vger.kernel.org, "David S. Miller" Subject: Re: [PATCH 00/49] DRM driver for Hikey 970 Message-ID: <20200821155650.GB300361@ravnborg.org> References: <20200819152120.GA106437@ravnborg.org> <20200819174027.70b39ee9@coco.lan> <20200819173558.GA3733@ravnborg.org> <20200821164158.22777f95@coco.lan> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200821164158.22777f95@coco.lan> X-CMAE-Score: 0 X-CMAE-Analysis: v=2.3 cv=aP3eV41m c=1 sm=1 tr=0 a=S6zTFyMACwkrwXSdXUNehg==:117 a=S6zTFyMACwkrwXSdXUNehg==:17 a=kj9zAlcOel0A:10 a=7gkXJVJtAAAA:8 a=7oA8CBdsI_oY7ygzQxoA:9 a=CjuIK1q_8ugA:10 a=E9Po1WZjFZOl8hwRPBS3:22 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Mauro. On Fri, Aug 21, 2020 at 04:41:58PM +0200, Mauro Carvalho Chehab wrote: > Another quick question: > > Em Wed, 19 Aug 2020 19:35:58 +0200 > Sam Ravnborg escreveu: > > > > +#define DSS_REDUCE(x) ((x) > 0 ? ((x) - 1) : (x)) > > Use generic macros for this? > > Do you know a generic macro similar to this? Or do you mean adding > it to include/kernel.h? It looked like something there should be a macro for. But I do not know one. And no, do not try to go the kernel.h route on this. At least not until you see more than one user. Sam