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=-16.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=unavailable 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 57331C47098 for ; Wed, 2 Jun 2021 14:03:20 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id EDA1A613BA for ; Wed, 2 Jun 2021 14:03:19 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org EDA1A613BA Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 77BD06B006C; Wed, 2 Jun 2021 10:03:19 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 752546B006E; Wed, 2 Jun 2021 10:03:19 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 5F3806B0070; Wed, 2 Jun 2021 10:03:19 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0024.hostedemail.com [216.40.44.24]) by kanga.kvack.org (Postfix) with ESMTP id 2EC956B006C for ; Wed, 2 Jun 2021 10:03:19 -0400 (EDT) Received: from smtpin27.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id C35D3181AC9B6 for ; Wed, 2 Jun 2021 14:03:18 +0000 (UTC) X-FDA: 78208950876.27.1B664C7 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf22.hostedemail.com (Postfix) with ESMTP id BA7B5C01C09D for ; Wed, 2 Jun 2021 14:03:02 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id 8CE12613B8; Wed, 2 Jun 2021 14:03:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1622642595; bh=rVTIekozkKZiHFO8KV73KQ3u8bmmogfis0wnY/V9zMk=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=j8vmJNJ02mTS2qujW9AuK34CyGewsKEQa3NJI4x54mI/kZ6TFkXgNShYSldLi9wwR iVZIZpo10XmlpdD1gKCLSxI2hAconHrCrMCgpriX/VTH8VoFXTo8owedKrPE/jIZ0c D0z4cOoqJMINruzqON7gaCTnozO9ZlPYtavKjKyFVVT2dZ+EtfNVi3gYHbuLNepcSX +gq/yzfSnUELMMLNTwhQ6DbA0qs/Rfv2LkuAbudO4aFFo53imu8k7hO2V3DMiMK48/ BPzuDC2hRRaPw3diNLbn7YRlcBUV1pB+YMb1s77Dpt31JAkWDkRc6hv1mITOzdI2oz pUQhhp2WADSpA== Date: Wed, 2 Jun 2021 17:03:01 +0300 From: Mike Rapoport To: Geert Uytterhoeven Cc: Andrew Morton , Arnd Bergmann , Ivan Kokshaysky , Jonathan Corbet , Matt Turner , Mike Rapoport , Richard Henderson , Vineet Gupta , kexec@lists.infradead.org, alpha , Linux-Arch , Linux ARM , "open list:DOCUMENTATION" , "linux-ia64@vger.kernel.org" , Linux Kernel Mailing List , linux-m68k , "open list:BROADCOM NVRAM DRIVER" , Linux MM , linux-riscv , linux-s390 , Linux-sh list , arcml , "open list:TENSILICA XTENSA PORT (xtensa)" , linuxppc-dev , sparclinux Subject: Re: [PATCH 4/9] m68k: remove support for DISCONTIGMEM Message-ID: References: <20210602105348.13387-1-rppt@kernel.org> <20210602105348.13387-5-rppt@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Authentication-Results: imf22.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=j8vmJNJ0; spf=pass (imf22.hostedemail.com: domain of rppt@kernel.org designates 198.145.29.99 as permitted sender) smtp.mailfrom=rppt@kernel.org; dmarc=pass (policy=none) header.from=kernel.org X-Rspamd-Server: rspam01 X-Rspamd-Queue-Id: BA7B5C01C09D X-Stat-Signature: nweiowwcja8ngdy4k51uxkpgmzgw5ynw X-HE-Tag: 1622642582-923382 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Wed, Jun 02, 2021 at 01:25:24PM +0200, Geert Uytterhoeven wrote: > Hi Mike, > > On Wed, Jun 2, 2021 at 12:54 PM Mike Rapoport wrote: > > From: Mike Rapoport > > > > DISCONTIGMEM was replaced by FLATMEM with freeing of the unused memory map > > in v5.11. > > > > Remove the support for DISCONTIGMEM entirely. > > > > Signed-off-by: Mike Rapoport > > Thanks for your patch! > > Reviewed-by: Geert Uytterhoeven > Acked-by: Geert Uytterhoeven > > > --- a/arch/m68k/include/asm/page_mm.h > > +++ b/arch/m68k/include/asm/page_mm.h > > @@ -126,25 +126,7 @@ static inline void *__va(unsigned long x) > > > > extern int m68k_virt_to_node_shift; > > > > -#ifndef CONFIG_DISCONTIGMEM > > #define __virt_to_node(addr) (&pg_data_map[0]) > > With pg_data_map[] removed, this definition can go as well. > Seems to be a leftover from 1008a11590b966b4 ("m68k: switch to MEMBLOCK > + NO_BOOTMEM") > > There are a few more: > arch/m68k/include/asm/mmzone.h:extern pg_data_t pg_data_map[]; > arch/m68k/include/asm/mmzone.h:#define NODE_DATA(nid) > (&pg_data_map[nid]) It seems that arch/m68k/include/asm/mmzone.h can be simply removed. > > -#else > > -extern struct pglist_data *pg_data_table[]; > > - > > -static inline __attribute_const__ int __virt_to_node_shift(void) > > -{ > > - int shift; > > - > > - asm ( > > - "1: moveq #0,%0\n" > > - m68k_fixup(%c1, 1b) > > - : "=d" (shift) > > - : "i" (m68k_fixup_vnode_shift)); > > - return shift; > > -} > > - > > -#define __virt_to_node(addr) (pg_data_table[(unsigned long)(addr) >> __virt_to_node_shift()]) > > -#endif > > > --- a/arch/m68k/mm/init.c > > +++ b/arch/m68k/mm/init.c > > @@ -44,28 +44,8 @@ EXPORT_SYMBOL(empty_zero_page); > > > > int m68k_virt_to_node_shift; > > > > -#ifdef CONFIG_DISCONTIGMEM > > -pg_data_t pg_data_map[MAX_NUMNODES]; > > -EXPORT_SYMBOL(pg_data_map); > > - > > -pg_data_t *pg_data_table[65]; > > -EXPORT_SYMBOL(pg_data_table); > > -#endif > > - > > Gr{oetje,eeting}s, > > Geert > > > -- > Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org > > In personal conversations with technical people, I call myself a hacker. But > when I'm talking to journalists I just say "programmer" or something like that. > -- Linus Torvalds -- Sincerely yours, Mike.