Received: by 2002:a05:6a10:a0d1:0:0:0:0 with SMTP id j17csp985068pxa; Sat, 22 Aug 2020 07:01:33 -0700 (PDT) X-Google-Smtp-Source: ABdhPJwhttGamoOdKvEUgQYzYx9eu+4Zev86FnosAM5gTgw6N/8+XcHtdtuseE94BvL5xUIq2ovf X-Received: by 2002:a17:906:924b:: with SMTP id c11mr7864393ejx.75.1598104893287; Sat, 22 Aug 2020 07:01:33 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1598104893; cv=none; d=google.com; s=arc-20160816; b=PYv/v3P9XBKghrl5HsGYxMUJ4j4A27Ory94OwtnABnDvAoGzCBo0v4gnTzKIxF2SYx 6caPD/SUYHDyLUU7JTUdKlx6XePqjkIZrqF81ZBLEONKqhJIVqleO5gbCU4g9+ydymGZ NxOeVNsfFRjlPPH4ELtpG495j0yaCcwvXvWQj/FqJYVXU322vY9vrePuRj65JGIJsvJj Xiu3lrZbmxnj/qXkrWhpn1x1t/CcIvV1pSzGpTaf5GA9do8qn4/hcsvcz6x5c+wv5OEa 9uy/O91Hpclwg5UHy9871lxDJt0wA8Gxi1Q8adboYxIZbCDjvlIF6p4s4vSp3zTwHFOp 2XcQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:mime-version:references:message-id :in-reply-to:subject:cc:to:from:date; bh=Q3MMkCbHh8rEpqiBoNd3cpxozmpY6sqfGVH4XlZIv3o=; b=ij9HTSqzMnQncVycl1PbeBS//T/+qQFA961yC/h8tSFWWj3Yy8ky1SZv193uFwry3X d5OfDSbT1RjyoctWI15TSlpkJfzDNU775yvWt3q5ZeKbMXnM36rvVrUpVxYbwaCJmXGp FDvRuu+uAYzILlzuWVVKsRnWZkLRAQgw54WvDJrySKkkOqAuItQDr0O1aGtOq/GYIsdZ oKQkWEgitszFSHO9FNi+x4uEVmwXlO3cazn+mBjLhjleAFC0NvVkP5Phz2upS9ynjTac nU7v1udsRXimapltMmXvziRHZPjYBVgCHPTeMOG9iKhlk2epA2I1Ij/G2+rBNbc1h2ho Gk7A== ARC-Authentication-Results: i=1; mx.google.com; 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 Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id f23si3186729ejc.740.2020.08.22.07.01.06; Sat, 22 Aug 2020 07:01:33 -0700 (PDT) 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; 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 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728072AbgHVOAQ (ORCPT + 99 others); Sat, 22 Aug 2020 10:00:16 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35938 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727900AbgHVOAQ (ORCPT ); Sat, 22 Aug 2020 10:00:16 -0400 Received: from orcam.me.uk (orcam.me.uk [IPv6:2001:8b0:154:0:ea6a:64ff:fe24:f2fc]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 6C416C061573; Sat, 22 Aug 2020 07:00:15 -0700 (PDT) Received: from bugs.linux-mips.org (eddie.linux-mips.org [IPv6:2a01:4f8:201:92aa::3]) by orcam.me.uk (Postfix) with ESMTPS id 01B152BE086; Sat, 22 Aug 2020 15:00:08 +0100 (BST) Date: Sat, 22 Aug 2020 15:00:00 +0100 (BST) From: "Maciej W. Rozycki" To: Paul Cercueil cc: Zhou Yanjie , Thomas Bogendoerfer , Paul Burton , Krzysztof Kozlowski , od@zcrc.me, linux-kernel@vger.kernel.org, linux-mips@vger.kernel.org, =?UTF-8?B?5ryG6bmP5oyv?= , dongsheng.qiu@ingenic.com, rick.tyliu@ingenic.com, yanfei.li@ingenic.com, xuwanhao@wanyeetech.com Subject: Re: [PATCH 00/13] MIPS: Convert Ingenic to a generic board In-Reply-To: Message-ID: References: <20200803170124.231110-1-paul@crapouillou.net> <4SSFFQ.3I498N5I41LP3@crapouillou.net> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, 22 Aug 2020, Paul Cercueil wrote: > > Well, run-time patching might be an alternative to get the best of both > > worlds, but someone would have to reimplement our feature selection system > > to use it. > > Would run-time patching allow to drop dead code? I don't know offhand. In principle it should be doable like with init sections, but that requires out of line code, so there'd still be some performance hit compared to a kernel configuration dedicated to a single platform. Maciej