Received: by 2002:a25:8b91:0:0:0:0:0 with SMTP id j17csp14752127ybl; Mon, 30 Dec 2019 16:37:19 -0800 (PST) X-Google-Smtp-Source: APXvYqwwF5P6uBhr9V3q7arIHuIkDJmX73+PwbxIAoonoaiBLDK5qloOf/DVJhXfgaY7NiPzSAJB X-Received: by 2002:a05:6830:1e30:: with SMTP id t16mr78563320otr.220.1577752639520; Mon, 30 Dec 2019 16:37:19 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1577752639; cv=none; d=google.com; s=arc-20160816; b=YKkfi1C3nXPXUNl6IVazNOmC6lM2/54MaFaUQrqTe0RKUkX1hF52PbskZZYMfuY1My +2n+ErnLTfFLNHShJXiPn4dohUlX7zIc2XNZgD45Lvx7Nl1Qx8CYvAugeuwXrpbWaMRv 8vRKvorzFky3qyPnoOSEIepgAjNdBJwo3q7uNOu22/Ix5STIuAuTd4qLVrjGqSm4W6pQ 131yfdqyvruYVQySMSfD0XzO4yZkYzXvZI+krlwxvqrOv5GatEVCzDi3YEb0lxfQmFwq TVus54pMndQrkD8pkQZOmUARRtWSqOnzAbtLWS5wb9g5zzEvD9TWBwDDd/fN4cHq9DZb S1Tg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding :content-language:in-reply-to:mime-version:user-agent:date :message-id:from:references:to:subject:dkim-signature; bh=uUpQtXEM4z6Ypnlq7iQ3VVz6U4Twpg3kBkbLZl2kbEo=; b=UpsoIWsEtBmao11lnuWTCRSFwSbLAeh0j2s+bIDtCeGBcgITNLpMP3bmZdxJkfmCvQ sZU11uAJloWJNYq68JIhIgvWQKStCfURjvs6GkjdotuFbrBFSNH6YVMgUa1/1L3hGrgW J8U7AivfhppielXbu7QQtZ3FRw8Fsh9IL1+qds6B2w7debBnpqZv5E3fvLcuDKn/iy7r IJhgrCZcWwip0pY870Cw0SWh34QscvlzhYyaxMnr890aHVRjPt5Ap4IszktdOJ0SuIaf UZUAqKcfKhE4mBE3sWeJ2Nauy6e6qmDAXNFDgohWeVd4Sit5AmQ3txYUyrqc9dVHCIf9 BmXg== ARC-Authentication-Results: i=1; mx.google.com; dkim=fail header.i=@infradead.org header.s=bombadil.20170209 header.b=l80O9So2; 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 Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id k7si20863670oib.115.2019.12.30.16.37.07; Mon, 30 Dec 2019 16:37:19 -0800 (PST) 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; dkim=fail header.i=@infradead.org header.s=bombadil.20170209 header.b=l80O9So2; 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 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727804AbfLaAgY (ORCPT + 99 others); Mon, 30 Dec 2019 19:36:24 -0500 Received: from bombadil.infradead.org ([198.137.202.133]:55932 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727766AbfLaAgY (ORCPT ); Mon, 30 Dec 2019 19:36:24 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=Content-Transfer-Encoding: Content-Type:In-Reply-To:MIME-Version:Date:Message-ID:From:References:To: Subject:Sender:Reply-To:Cc:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=uUpQtXEM4z6Ypnlq7iQ3VVz6U4Twpg3kBkbLZl2kbEo=; b=l80O9So2abIGf49ULGRQJuNtm I+vdOBgJQQ0GoAwwTGm9LwGAKYFsFaEpgFARhI5guBAuLgMeT0CK9t0LpNOfsyBlOnxQBl9FPi8nK VReEBa1lKBK0dFlBSP8FMEnlnIGe1eYjkAxsQqyS/lRuvELiPZipbRjAr9TdU0hGM0dStCaRLtoBm 2ns38SkHhzMN22H+mqJEZ+1T27+XH2UFhmrffS8B7qxnL6Kv4oyhZjwGouIQgrdJeoLguxIpja2FP 8MTS70+BDD4/i+GoPwteFN5ymF+DF40w8j6k2TSYv4lU+/oiFH2e++we222lYTA9ajW2fEhVbjDKF irVHuH16g==; Received: from [2601:1c0:6280:3f0::34d9] by bombadil.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1im5WJ-0004x0-6p; Tue, 31 Dec 2019 00:36:23 +0000 Subject: Re: Why is CONFIG_VT forced on? To: Rob Landley , linux-kernel@vger.kernel.org References: <9b79fb95-f20c-f299-f568-0ffb60305f04@landley.net> From: Randy Dunlap Message-ID: Date: Mon, 30 Dec 2019 16:36:22 -0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.2.1 MIME-Version: 1.0 In-Reply-To: <9b79fb95-f20c-f299-f568-0ffb60305f04@landley.net> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 12/30/19 4:30 PM, Rob Landley wrote: > On x86-64 menuconfig, CONFIG_VT is forced on (in drivers->char devices->virtual > terminal), but the help doesn't mention a "selects", and I didn't spot anything > obvious in "find . -name 'Kconfig*' | xargs grep -rw VT". > > Congratulations, you've reinvented "come from". I'm mostly familiar with the > kconfig plumbing from _before_ you made it turing complete: how do I navigate this? > > I'm guessing "stick printfs into the menuconfig binary" is the recommended next > step for investigating this? Or is there a trick I'm missing? I've never had to resort to that trick. > Rob > config VT bool "Virtual terminal" if EXPERT depends on !UML select INPUT default y ^^^^^^^^^^^^^^^^^^^ That's all it takes ^^^^^^^^^^^^^^^^. Does that explain it? Maybe I don't understand the problem. -- ~Randy