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=-3.8 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,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 3047EC433E2 for ; Sat, 5 Sep 2020 11:39:42 +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 7147620757 for ; Sat, 5 Sep 2020 11:39:41 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=kroah.com header.i=@kroah.com header.b="hh+TjfqM"; dkim=temperror (0-bit key) header.d=messagingengine.com header.i=@messagingengine.com header.b="s1IDZ6Vp" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7147620757 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=kroah.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kernelnewbies-bounces+kernelnewbies=archiver.kernel.org@kernelnewbies.org Received: from localhost ([::1] helo=shelob.surriel.com) by shelob.surriel.com with esmtp (Exim 4.94) (envelope-from ) id 1kEWXk-0006ls-Dm for kernelnewbies@archiver.kernel.org; Sat, 05 Sep 2020 07:39:40 -0400 Received: from out3-smtp.messagingengine.com ([66.111.4.27]) by shelob.surriel.com with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94) (envelope-from ) id 1kEWVv-0005K4-L4 for kernelnewbies@kernelnewbies.org; Sat, 05 Sep 2020 07:37:48 -0400 Received: from compute1.internal (compute1.nyi.internal [10.202.2.41]) by mailout.nyi.internal (Postfix) with ESMTP id 046505C00C2; Sat, 5 Sep 2020 07:37:43 -0400 (EDT) Received: from mailfrontend1 ([10.202.2.162]) by compute1.internal (MEProxy); Sat, 05 Sep 2020 07:37:43 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kroah.com; h= date:from:to:cc:subject:message-id:references:mime-version :content-type:in-reply-to; s=fm1; bh=xdYDBxaEXvwHthvbUVUPwwaU0h4 fc5si4d17TZN0AH4=; b=hh+TjfqMvgaqEsiBRr22QYRv+Vec17kdY1yuJumJ3P9 yXJL5Ifx4q528UdjymGUTH7rhfJ2001EGoe0hTzx4Skx2jZyRceKLPE3+1SzroO+ XhSkYO1ojo3imrDW75XP4DKwXwvGRHJJtRyVxRbQw9NuDxA+OO0e1x15uUI+rzeG Pe86R5+xlGj2WQMCgdYuM+bBRuzPH5/GqLs3vEFwezPAZ3IEIdoN9ap1INHZ46Xh /kmaDgDpsB19ATN8jhlVbkH6Y9bOMe97rohIjDd5XWD2Sv3C5IZ2d0c36WNBhkvC 6DMhCXJ0XuWY/E6cc05viQXEuLwdl2gQGKH3n8ZvIYw== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to:x-me-proxy :x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s=fm3; bh=xdYDBx aEXvwHthvbUVUPwwaU0h4fc5si4d17TZN0AH4=; b=s1IDZ6Vpbxlau/jE8mqsM4 RdiuRNoBgpAXua4kzvVjzDs9oggUoOXfuGaGBpMheDnt6WOWubQTCDyClmNbikc/ c5eCGGg9EYaupmQr/ZgaMybFLYOpydLisDCbi7XQsZJLTPUsqmldAHw2b4jKXxYw kikXPF7kJ2ZIvL0Mg10WioYPtugOZtH9jyLYaTOx8DfL4IIr7ntjsmLEA9GKFM8i oeoUEEfiRxV2kr+VkOX3zh6i4CcYhcS0S+tGiVWNtkaoyP7qDP1OFAwFJ2AVjOsH NroBWDTsPAI7O7AgppTEJRDpFoDi/bDMmB4YXMlw7vBetf49H+P2SgEltJJC/Sgg == X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeduiedrudeghedggedtucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucenucfjughrpeffhffvuffkfhggtggujgesthdtre dttddtvdenucfhrhhomhepifhrvghgucfmjfcuoehgrhgvgheskhhrohgrhhdrtghomheq necuggftrfgrthhtvghrnhepleehgfehvdfghfevvdetjeelteegfefhudelgfehgeeghf fguddvheffteegtddtnecuffhomhgrihhnpehkvghrnhgvlhdrohhrghdplhgruhhntghh phgrugdrnhgvthenucfkphepkeefrdekiedrjeegrdeigeenucevlhhushhtvghrufhiii gvpedtnecurfgrrhgrmhepmhgrihhlfhhrohhmpehgrhgvgheskhhrohgrhhdrtghomh X-ME-Proxy: Received: from localhost (83-86-74-64.cable.dynamic.v4.ziggo.nl [83.86.74.64]) by mail.messagingengine.com (Postfix) with ESMTPA id 6D72C328005D; Sat, 5 Sep 2020 07:37:42 -0400 (EDT) Date: Sat, 5 Sep 2020 13:37:40 +0200 From: Greg KH To: Jeffrey Walton Subject: Re: Disable EISA and probes Message-ID: <20200905113740.GA199480@kroah.com> References: <20200905061514.GA177286@kroah.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: Cc: 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: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: kernelnewbies-bounces+kernelnewbies=archiver.kernel.org@kernelnewbies.org 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? > > 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? thanks, greg k-h _______________________________________________ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies