Received: by 2002:ac0:a5b6:0:0:0:0:0 with SMTP id m51-v6csp3242662imm; Tue, 29 May 2018 03:52:45 -0700 (PDT) X-Google-Smtp-Source: AB8JxZosR1nlzKqGk/Tm8jRvv6rOxnjT3rKeCZqAUdfLH27TSfGdKzCe0GUBBpr4a8pcXHAh31vC X-Received: by 2002:a63:81c7:: with SMTP id t190-v6mr13225817pgd.378.1527591165128; Tue, 29 May 2018 03:52:45 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1527591165; cv=none; d=google.com; s=arc-20160816; b=BULS2q9wPpF510n9I5FUGXeWxJEaeKczOey1ha0/7NxzlGuQ6SrnklsPxJIW8Yc6hr qIq76o8K59BXa6otOn24RX51PSihLKVd1urxn84xwtRCrjmAKUxsqyXWhvubBR+4neSH +Ob7pjbOO83KtUr+HaHzoenWGgeoBRgmU83AEN6HucUcEKodcGLfMdDb/wuf/uxP4x8o pCMJ3fyZ8+UEJ16ecnL652fta6hckKMdtyMn+RGSYU7UXVYuqt8ff2n0Lo795MLo+Io7 HXkJJq/qAyYRpTsSamCexRk38VrUcd4/WlAqC8FG6SyLhfnWM3jzyQ0iJiI2PvAg2Iyc zZLQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date:arc-authentication-results; bh=fVY76edsyVGitXdn+v+ZxXB9YVclbM12ieUCoxDq0Gs=; b=Ts90YERvLb1z7Rzfm7d6GNWB4DTAxIwyG/TUI8nf9IodZV7DtNYS4h3t3pp3+Up1SE JAf1TKV2mG7WUsvLuVhzXnGv8VffjimX3FtqnocW5uuukFtkx60QHfTAhfwaYh4fSy5N uQefH1XUK73iT5nz+mJaizzf9zwz3t3yQmp89d/vXa1VzB5+1PH+L4bIE34AryBCM6FR bsOD25jRtIKKP581ZVHjc1YGKyXWIA1ujgmsNf1K6Tm+xDBl8zPcbBNiyqsDcGiZuy1U 8j54yC4qa8x3Uy8rMqRib3ocyJqnOHgEK0tt/5/Y1HDzyMb2px25gPF9sCNQte/9QdJr MXmw== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=redhat.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id p29-v6si9498487pgn.663.2018.05.29.03.52.30; Tue, 29 May 2018 03:52:45 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=redhat.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933259AbeE2Kuo (ORCPT + 99 others); Tue, 29 May 2018 06:50:44 -0400 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:48662 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S932847AbeE2Kuk (ORCPT ); Tue, 29 May 2018 06:50:40 -0400 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.rdu2.redhat.com [10.11.54.4]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 7C498401EF08; Tue, 29 May 2018 10:50:39 +0000 (UTC) Received: from sirius.home.kraxel.org (ovpn-117-13.ams2.redhat.com [10.36.117.13]) by smtp.corp.redhat.com (Postfix) with ESMTP id 486EC2026DEF; Tue, 29 May 2018 10:50:39 +0000 (UTC) Received: by sirius.home.kraxel.org (Postfix, from userid 1000) id A50AF423E7; Tue, 29 May 2018 12:50:37 +0200 (CEST) Date: Tue, 29 May 2018 12:50:37 +0200 From: Gerd Hoffmann To: Oleksandr Andrushchenko Cc: dri-devel@lists.freedesktop.org, Tomeu Vizoso , David Airlie , open list , "moderated list:DMA BUFFER SHARING FRAMEWORK" , "open list:KERNEL SELFTEST FRAMEWORK" , Shuah Khan , "open list:DMA BUFFER SHARING FRAMEWORK" Subject: Re: [PATCH v3] Add udmabuf misc device Message-ID: <20180529105037.uog4tvcckqp5q6fe@sirius.home.kraxel.org> References: <20180525140808.12714-1-kraxel@redhat.com> <0ad0606e-3201-e203-ec93-8718d7938751@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <0ad0606e-3201-e203-ec93-8718d7938751@gmail.com> User-Agent: NeoMutt/20180512 X-Scanned-By: MIMEDefang 2.78 on 10.11.54.4 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.5]); Tue, 29 May 2018 10:50:39 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.5]); Tue, 29 May 2018 10:50:39 +0000 (UTC) for IP:'10.11.54.4' DOMAIN:'int-mx04.intmail.prod.int.rdu2.redhat.com' HELO:'smtp.corp.redhat.com' FROM:'kraxel@redhat.com' RCPT:'' Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, > > +config UDMABUF > > + bool "userspace dmabuf misc driver" > > + default n > > + depends on DMA_SHARED_BUFFER > Don't you want "select DMA_SHARED_BUFFER" here instead? Why do you think so? cheers, Gerd