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=-2.3 required=3.0 tests=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 1AEC0C43603 for ; Tue, 17 Dec 2019 15:16:04 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id E3C4E2146E for ; Tue, 17 Dec 2019 15:16:03 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E3C4E2146E Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=libc.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 8E6138E0083; Tue, 17 Dec 2019 10:16:03 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 86F5C8E0079; Tue, 17 Dec 2019 10:16:03 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 7864C8E0083; Tue, 17 Dec 2019 10:16:03 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0043.hostedemail.com [216.40.44.43]) by kanga.kvack.org (Postfix) with ESMTP id 5CF1A8E0079 for ; Tue, 17 Dec 2019 10:16:03 -0500 (EST) Received: from smtpin27.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with SMTP id 11908124F for ; Tue, 17 Dec 2019 15:16:03 +0000 (UTC) X-FDA: 76274983806.27.burst12_6ef9aae382b3d X-HE-Tag: burst12_6ef9aae382b3d X-Filterd-Recvd-Size: 1549 Received: from brightrain.aerifal.cx (216-12-86-13.cv.mvl.ntelos.net [216.12.86.13]) by imf25.hostedemail.com (Postfix) with SMTP for ; Tue, 17 Dec 2019 15:16:02 +0000 (UTC) Received: from dalias by brightrain.aerifal.cx with local (Exim 3.15 #2) id 1ihEZh-0006DW-00; Tue, 17 Dec 2019 15:15:49 +0000 Date: Tue, 17 Dec 2019 10:15:49 -0500 From: Rich Felker To: Mike Rapoport Cc: linux-sh@vger.kernel.org, Yoshinori Sato , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Mike Rapoport Subject: Re: [PATCH 0/2] sh: get rid of __ARCH_USE_5LEVEL_HACK Message-ID: <20191217151549.GH1666@brightrain.aerifal.cx> References: <20191217142150.10392-1-rppt@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20191217142150.10392-1-rppt@kernel.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-Bogosity: Ham, tests=bogofilter, spamicity=0.387348, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Tue, Dec 17, 2019 at 04:21:48PM +0200, Mike Rapoport wrote: > From: Mike Rapoport > > Hi, > > These patches update the SuperH page table folding/unfolding to take into > account the 5th level. Is this only for 64-bit/sh5? If so, I'd really like to avoid having patch churn that nominally keeps it working, since it doesn't; GCC dropped support a long time ago and it was experimental to begin with, never appeared in production. Has anyone looked lately at what it would take to remove it? Rich