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=-2.4 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 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 8D610C3A5A6 for ; Thu, 19 Sep 2019 12:49:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 681CA208C0 for ; Thu, 19 Sep 2019 12:49:25 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=alien8.de header.i=@alien8.de header.b="Gm83Egjv" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390385AbfISMtY (ORCPT ); Thu, 19 Sep 2019 08:49:24 -0400 Received: from mail.skyhub.de ([5.9.137.197]:36500 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387520AbfISMtY (ORCPT ); Thu, 19 Sep 2019 08:49:24 -0400 Received: from nazgul.tnic (unknown [193.86.95.52]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.skyhub.de (SuperMail on ZX Spectrum 128k) with ESMTPSA id 039051EC04BC; Thu, 19 Sep 2019 14:49:22 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=dkim; t=1568897363; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:in-reply-to:in-reply-to: references:references; bh=SvivuKiDv8mVFUG8Dwck4C5w7ji5KE7vzCHmIg2WcWA=; b=Gm83Egjv2y3IHZ04hPe2qsDYEgMJriGC4xoXzWN3ngcLi7Koh2ogXS7vrbWty0heJ+fDmi azz3rpDWHqDXmn6pBaIhSPsV5nAemg/PVcripkux1vbO/EgG+9A9rGJfnq+vFt5b40Z5ws oOojf3v2beto+6aJgr//DYM1SQe2uzY= Date: Thu, 19 Sep 2019 14:49:11 +0200 From: Borislav Petkov To: Josh Poimboeuf Cc: x86-ml , Andy Lutomirski , Linus Torvalds , lkml Subject: Re: [RFC] Improve memset Message-ID: <20190919124911.GA18148@nazgul.tnic> References: <20190913072237.GA12381@zn.tnic> <20190917201021.evoxxj7vkcb45rpg@treble> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20190917201021.evoxxj7vkcb45rpg@treble> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Sep 17, 2019 at 03:10:21PM -0500, Josh Poimboeuf wrote: > Then the "reverse alternatives" feature wouldn't be needed anyway. The intent was to have the default, most-used version be there at build-time, obviating the need to patch. Therefore on those old !ERMS CPUs we'll end up doing rep;stosb before patching, which is supported, albeit slow. -- Regards/Gruss, Boris. ECO tip #101: Trim your mails when you reply. --