Received: by 2002:a05:6a10:9848:0:0:0:0 with SMTP id x8csp1303402pxf; Fri, 12 Mar 2021 06:49:22 -0800 (PST) X-Google-Smtp-Source: ABdhPJx2baVCaKHQJWZTy5Muh9T6O3ccAAW0dMMRry8Tvp4i789Qze23yrz3OSAhBZTZD9/5D1RX X-Received: by 2002:a05:6402:35cd:: with SMTP id z13mr14667396edc.21.1615560562149; Fri, 12 Mar 2021 06:49:22 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1615560562; cv=none; d=google.com; s=arc-20160816; b=IguNtm4B+0eCevsBdjgKH/DjFea1fvrnepKfcJleOSaQiqMFLYM6YMotugpK8l1vWt qMvzlu2GYxyR5ViJ06+pj7xjfg2htJry9HHen/O4Ti+u5/86FIUqfrlzMI45FArXkQVi UCtZsKs18Xs0vYc2w7h2q4Y/nfsG2LF7f1oUFNtHkqhahPbYU9H81tykXUFbx/9CqcdC mPObyPqeBhKihv++4tGR4VgQ0MdLTk0NuPSUa+Eoe8Ck3sHTXQuV52oVfzS4ij1qk62p GSNLasS7uJgZpiO5kQcjGjAC/OgJZIcfL4FtixeiJtIEieTGsv2gaeX3qpcenh/8NT9q v6lA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:in-reply-to:content-disposition:mime-version :references:message-id:subject:cc:to:from:date:dkim-signature; bh=MfFCSQX6upcoPWfFmtqgYwJe7OQg5nlgBsinNAf4s7U=; b=xdN4M855rgNe3P6t7CYWlzLQfhAkGcvEfRbS52AXX8JxleaY4auInecE3KWzw6zc1H TWO3pMqL7/8FXEMiyy+jUIMrn2vIeyxyeQTy+r2b+l1oOhEH1XKzH+vd4icmKNaRb/LO 00nnplHSMTSfZ7u1te8lKUhqqcehKpYH65HksQmfXje1zj+QX/YEwJ0Nh+xJCoNO4viB u9P+BO490rkLee7tzCGe3Ej+7SiESuQfIuHnkStZkV5j121g/aWJkGsFJusFNQ0kOPVz 9BPYwBWKtXgSoPsXeAKQIBDnAGHZKi083GicAENgifEFrIWOsR4cMnxJtY9VUkQz4yo4 tYZQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@alien8.de header.s=dkim header.b=cvAuByi7; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=alien8.de Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id i2si3972708ejc.37.2021.03.12.06.48.59; Fri, 12 Mar 2021 06:49:22 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@alien8.de header.s=dkim header.b=cvAuByi7; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=alien8.de Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229728AbhCLOrx (ORCPT + 99 others); Fri, 12 Mar 2021 09:47:53 -0500 Received: from mail.skyhub.de ([5.9.137.197]:54830 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231216AbhCLOrh (ORCPT ); Fri, 12 Mar 2021 09:47:37 -0500 Received: from zn.tnic (p200300ec2f095300759f96bc38110012.dip0.t-ipconnect.de [IPv6:2003:ec:2f09:5300:759f:96bc:3811:12]) (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 551DC1EC0249; Fri, 12 Mar 2021 15:47:35 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=dkim; t=1615560455; 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=MfFCSQX6upcoPWfFmtqgYwJe7OQg5nlgBsinNAf4s7U=; b=cvAuByi7+xXqXWw+bHT1we1Oln3qP2n2hw+Sz0eZX7h0Ug/Q7HuwD7LX68C/hR/ZhMVwVh NVvvYgTMd2uimqy3RrbGG6dNtXMexwzgpMJN7Ywluh3x602HQnCGN9Tok7ITbVlVbcYZlJ h2fvFvm/Wl4JlyNCwdlgFfLieXYA7Qw= Date: Fri, 12 Mar 2021 15:47:26 +0100 From: Borislav Petkov To: Sedat Dilek Cc: Peter Zijlstra , x86@kernel.org, rostedt@goodmis.org, hpa@zytor.com, torvalds@linuxfoundation.org, linux-kernel@vger.kernel.org, linux-toolchains@vger.kernel.org, jpoimboe@redhat.com, alexei.starovoitov@gmail.com, mhiramat@kernel.org Subject: Re: [PATCH 0/2] x86: Remove ideal_nops[] Message-ID: <20210312144726.GA22098@zn.tnic> References: <20210312113253.305040674@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Mar 12, 2021 at 03:29:48PM +0100, Sedat Dilek wrote: > What does this change exactly mean to/for me? Probably nothing. I would be very surprised if it would be at all noticeable for you - it's not like the kernel is executing long streams of NOPs in fast paths. -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette