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 X-Spam-Level: X-Spam-Status: No, score=-6.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_2 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B28FDC433E1 for ; Mon, 24 Aug 2020 16:08:05 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 7E7942072D for ; Mon, 24 Aug 2020 16:08:05 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="xZDxi9UP"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="y7swRGyv" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7E7942072D Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-ID: Subject:To:From:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=UQQiEjJuTR8Sg/0VmZM3lsBX+fO+cIzrlz1iudkMZ/4=; b=xZDxi9UPxh6cfeZ5tTVzGylkt XP0hnadPQQ1N2oCa8Dbx87Sum3pjuLnDsjN60cIG0ggIryqLj3QvCBMdX7rUUiatC2HtVTy/PQqjv xvnvRqLo79PyNOaPwuXt8GqgRqbQdrkmgJwpAybS6dhoOFZ8Uvn1PHQgiHOpJ70hdRo4y2Tsqg+i0 zCHjRJvpieE+D52eb6xJkak0trvEYMuVGS/3xPLE9D43J5Ai9kpVHoWOqDr1bYUAk23MkQpHXY5mg 2RtoTCMX6EmUVSGSK2ZzR33c8DgRZbullChBsebWW62t016VfcCX6j1bh2XTWRQGnykmTE3SLuKNo 12Tlu5k+A==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kAEz9-0005Mb-Fd; Mon, 24 Aug 2020 16:06:15 +0000 Received: from mail.kernel.org ([198.145.29.99]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kAEz6-0005La-GA for linux-arm-kernel@lists.infradead.org; Mon, 24 Aug 2020 16:06:13 +0000 Received: from coco.lan (unknown [95.90.213.182]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id D10B92072D; Mon, 24 Aug 2020 16:06:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1598285171; bh=03hAu4nRPFwVwIO4v5NWL3jE+EDhR0ft7Y0oPd1gP0w=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=y7swRGyvuvKiCu9/nrs1SXr8C+kHHYOQrQUSAJjGAjyfAkO2vlAob2lP+2GvOiVv3 Pt1iO8jmNElYCkalrWgU0wwBm1cz8FdwsHljARxYM9slVfU3ws0JegC3Brl+1hW/zf NjcQkkkNKRa79YYaPTJPVie4PrwlTYTaf84FyRb4= Date: Mon, 24 Aug 2020 18:06:01 +0200 From: Mauro Carvalho Chehab To: Sam Ravnborg Subject: Re: [PATCH 00/49] DRM driver for Hikey 970 Message-ID: <20200824180601.192adc3b@coco.lan> In-Reply-To: <20200821155650.GB300361@ravnborg.org> References: <20200819152120.GA106437@ravnborg.org> <20200819174027.70b39ee9@coco.lan> <20200819173558.GA3733@ravnborg.org> <20200821164158.22777f95@coco.lan> <20200821155650.GB300361@ravnborg.org> X-Mailer: Claws Mail 3.17.6 (GTK+ 2.24.32; x86_64-redhat-linux-gnu) MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200824_120612_641236_AFC21133 X-CRM114-Status: GOOD ( 19.17 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: 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 , Jakub Kicinski , 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 , mauro.chehab@huawei.com, Rob Clark , linux-arm-kernel@lists.infradead.org, Greg Kroah-Hartman , linux-kernel@vger.kernel.org, Liuyao An , netdev@vger.kernel.org, Rongrong Zou , bpf@vger.kernel.org, "David S. Miller" Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Em Fri, 21 Aug 2020 17:56:50 +0200 Sam Ravnborg escreveu: > 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. Yeah, adding this to kernel.h just for a single usage is overkill. I would be expecting that a non-underflow decrement logic is something that would be used on other places at the Kernel, but identifying this pattern would require some time. Maybe Kernel janitors could write some coccinelle script to replace similar patterns like that into some macro in the future. Thanks, Mauro _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel