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=-3.5 required=3.0 tests=BAYES_00,DKIM_ADSP_CUSTOM_MED, DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED 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 D191CC43461 for ; Sat, 5 Sep 2020 13:19:34 +0000 (UTC) Received: from shelob.surriel.com (shelob.surriel.com [96.67.55.147]) (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 317B72072D for ; Sat, 5 Sep 2020 13:19:33 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="TR9CGc6i" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 317B72072D Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kernelnewbies-bounces@kernelnewbies.org Received: from localhost ([::1] helo=shelob.surriel.com) by shelob.surriel.com with esmtp (Exim 4.94) (envelope-from ) id 1kEY5z-0007xK-J7; Sat, 05 Sep 2020 09:19:07 -0400 Received: from mail-io1-xd42.google.com ([2607:f8b0:4864:20::d42]) by shelob.surriel.com with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (Exim 4.94) (envelope-from ) id 1kEY5w-0007xE-VH for kernelnewbies@kernelnewbies.org; Sat, 05 Sep 2020 09:19:05 -0400 Received: by mail-io1-xd42.google.com with SMTP id g128so9775632iof.11 for ; Sat, 05 Sep 2020 06:19:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:reply-to:from:date:message-id :subject:to; bh=jhKKpg3HIHPEjNAdybAwQljUOyKZT1kcInw1rs5sPAs=; b=TR9CGc6i7mGbDh7TAGmHpIvjXqctRWvRQOahYUWBGBXxOyyMctfn0ETrqL3UJAoD3g 9ZrzgEjBib3nz2WgVw1v/jvzSIJuOL1159fbxUjmQZ/+BXH2xR6b8hndiBYI1ZJJR9lI l6N4wNYAqu+useoUbPsTO1LbyadVSGbE5pzBLx96NkYPcnH3inteTeKqNIn8Uh40r3Fx xJZhVRysmyAXN4xJPoDrHSwW1pITNBhj0NSXHFk004Hm6iT4UQvLm6fHWNiJ5GA8AMVF Fw1QrOwiAtk8rVOe/AiSmss6BofLgt87katF15OvGq3XdxdufzFHpNDEspLMovSXljas ryOQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:reply-to :from:date:message-id:subject:to; bh=jhKKpg3HIHPEjNAdybAwQljUOyKZT1kcInw1rs5sPAs=; b=srbuVLxjze7Op7hk6M3B/WdID6DckwX9vjxBX3omMU11WylAid1HcGbQCNtJ67rFzs f+1QGQb6S5zvriaM/HOyHhLFiCfgvSlC46boi1uy4J4GLRRMIAPNAm7xhhw+MbkSSwDV tzurwZ+091OzOuhWP48EHG0UFZeLNxJjefaVbEYJi2q6/+EmjQ3BmO9BaqesCr9qucw1 CEGgXpB7aT0WPTpQBSN40oqG7HUiE4iq4GK2AbUoubyiYUACtt90YlMN0jgXqNndUWg7 R5XkXZ+4yTPhk5Dg/OLvNaX3P3TXRMIzJcRdam7DcWJFZeNA1q8TA6+Nh7UyS8KVbD8Y R6fA== X-Gm-Message-State: AOAM533K9Kaw8lwNq8Cwv/qRF2kzylJv3pDCRfLSxB1SgWynomTQ+Xkf tAvJODcJpJgAYFjw4IWWlIHqKYnjPO9hARBZzeYa0S0rao0= X-Google-Smtp-Source: ABdhPJyRBwLUpknor2AvGBZadh0o9FlM+fw8mJzV1kpXmM8AOPwy7pHu4yJKhrl6fwC9IOqsJofQBqsNbNZ0Qf1H6e4= X-Received: by 2002:a02:7055:: with SMTP id f82mr12719596jac.54.1599311883335; Sat, 05 Sep 2020 06:18:03 -0700 (PDT) MIME-Version: 1.0 References: <20200905061514.GA177286@kroah.com> <20200905113740.GA199480@kroah.com> In-Reply-To: <20200905113740.GA199480@kroah.com> From: Jeffrey Walton Date: Sat, 5 Sep 2020 09:17:43 -0400 Message-ID: Subject: Re: Disable EISA and probes To: kernelnewbies X-BeenThere: kernelnewbies@kernelnewbies.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Learn about the Linux kernel List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: noloader@gmail.com Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: kernelnewbies-bounces@kernelnewbies.org On Sat, Sep 5, 2020 at 7:37 AM Greg KH wrote: > > On Sat, Sep 05, 2020 at 07:31:13AM -0400, Jeffrey Walton wrote: > > On Sat, Sep 5, 2020 at 2:15 AM Greg KH wrote: > > > > > > On Fri, Sep 04, 2020 at 10:57:38PM -0400, Jeffrey Walton wrote: > > > > Hi Everyone, > > > > > > > > I would like to disable EISA and its probes during boot. I found the > > > > docs at https://www.kernel.org/doc/html/latest/driver-api/eisa.html, > > > > but it does not discuss how to disable EISA or the probes. > > > > > > > > I also found https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1543919, > > > > where folks are wondering why EISA is enabled by default nowadays. And > > > > one person asks about a kernel option to disable it (like I am doing). > > > > > > > > I'd like to add a boot param like eisa=0 or eisa=off, but I suspect > > > > it's not that easy. Looking at the three documented kernel parameters, > > > > they all enable EISA and probes. > > > > > > > > How do I disable EISA and the probes? > > > > > > Build a kernel without EISA in it at all? That's the simplest way as > > > you must have some custom hardware that doesn't like this, so a > > > custom-configuration seems like the best option. > > > > Nothing custom. I just have modern hardware. > > > > What's the purpose of including EISA by default? It has not been used > > in 25 years. > > distro kernels have to support everything. The kernel should still just > work just fine with it enabled but not present, right? Modern distros and their minimum requirements preclude EISA. One cannot meet a distros minimum requirements and have EISA. > > > Did you try that and it did not work? What is the problem of EISA at > > > boot anyway? > > > > No, I did not build a custom kernel. I was looking for kernel options > > to disable it. > > Again, why? What is breaking because it is enabled in your kernel? Why do you assume something is broke? Jeff _______________________________________________ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies