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=-1.0 required=3.0 tests=MAILING_LIST_MULTI,SPF_PASS autolearn=ham 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 E84E1C43387 for ; Thu, 20 Dec 2018 17:52:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C68C3218D3 for ; Thu, 20 Dec 2018 17:52:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388203AbeLTRwC (ORCPT ); Thu, 20 Dec 2018 12:52:02 -0500 Received: from gateway20.websitewelcome.com ([192.185.49.40]:26831 "EHLO gateway20.websitewelcome.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729481AbeLTRwB (ORCPT ); Thu, 20 Dec 2018 12:52:01 -0500 Received: from cm16.websitewelcome.com (cm16.websitewelcome.com [100.42.49.19]) by gateway20.websitewelcome.com (Postfix) with ESMTP id 142F6400E2884 for ; Thu, 20 Dec 2018 11:52:01 -0600 (CST) Received: from gator4166.hostgator.com ([108.167.133.22]) by cmsmtp with SMTP id a2ULgjzza4FKpa2ULgFDR4; Thu, 20 Dec 2018 11:52:01 -0600 X-Authority-Reason: nr=8 Received: from [189.250.106.44] (port=59410 helo=[192.168.1.76]) by gator4166.hostgator.com with esmtpsa (TLSv1.2:ECDHE-RSA-AES128-GCM-SHA256:128) (Exim 4.91) (envelope-from ) id 1ga2UK-000ZKN-OI; Thu, 20 Dec 2018 11:52:00 -0600 Subject: Re: [PATCH] ALSA: isa/wavefront: Fix potential Spectre v1 vulnerabilities To: Takashi Iwai Cc: Jaroslav Kysela , alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org References: <20181219233143.GA14518@embeddedor> From: "Gustavo A. R. Silva" Message-ID: <16ea3722-c1e7-b82a-2708-e26132ed7c78@embeddedor.com> Date: Thu, 20 Dec 2018 11:51:59 -0600 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.2.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - gator4166.hostgator.com X-AntiAbuse: Original Domain - vger.kernel.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - embeddedor.com X-BWhitelist: no X-Source-IP: 189.250.106.44 X-Source-L: No X-Exim-ID: 1ga2UK-000ZKN-OI X-Source: X-Source-Args: X-Source-Dir: X-Source-Sender: ([192.168.1.76]) [189.250.106.44]:59410 X-Source-Auth: gustavo@embeddedor.com X-Email-Count: 8 X-Source-Cap: Z3V6aWRpbmU7Z3V6aWRpbmU7Z2F0b3I0MTY2Lmhvc3RnYXRvci5jb20= X-Local-Domain: yes Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 12/20/18 11:35 AM, Takashi Iwai wrote: > > Well, no, my question is whether it makes sense to patch the code path > for such ISA drivers. Spectre seems applicable since the model around > 2006 or so, and ISA slot has been already dead for very long time. > And yet with this minor board... I bet no one hits this in the > world. > Oh, I see. I'm not stopping to analyze all the context around a driver other than the code itself. So, thanks for pointing this out. I won't touch those drivers from now on. Thanks -- Gustavo