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=-13.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,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 AF98EC4707F for ; Thu, 27 May 2021 14:27:10 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 0474560233 for ; Thu, 27 May 2021 14:27:09 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0474560233 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linux-m68k.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 7D6D36B006C; Thu, 27 May 2021 10:27:08 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 76F816B006E; Thu, 27 May 2021 10:27:08 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 313FE6B0070; Thu, 27 May 2021 10:27:08 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0058.hostedemail.com [216.40.44.58]) by kanga.kvack.org (Postfix) with ESMTP id E22ED6B006C for ; Thu, 27 May 2021 10:27:07 -0400 (EDT) Received: from smtpin35.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id 70FE99093 for ; Thu, 27 May 2021 14:27:07 +0000 (UTC) X-FDA: 78187238094.35.7C2A216 Received: from mail-ua1-f49.google.com (mail-ua1-f49.google.com [209.85.222.49]) by imf17.hostedemail.com (Postfix) with ESMTP id D31FF40F8C01 for ; Thu, 27 May 2021 14:27:01 +0000 (UTC) Received: by mail-ua1-f49.google.com with SMTP id v27so280908uat.12 for ; Thu, 27 May 2021 07:27:06 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=cM98qANGM6gq7eFVcE8HDyKOCug9AFSASwSyFw9YbSU=; b=O1FGnByvCn2H7J7sZ2m8C12EIzqv4svGirk4hV4YCegQXN+t8l0B9zzZD99Kr3Qthl 6C0XehdleQ44NvnajbfiC7YkD7Qf/LlvvFoF+xfzlx2ckcHbLWsZuzfZjWoIU9OhJgg2 jlqvxHmIqbKWm2gwdx9TNqG2egd07yGEVvauuJLkPyrXNF3U64xunns4YTy9Utq0BdZB 09eCjE8Zx5O3IMl6M8Vg6yIwGVNPc9JtRwVMS0qsCFnHMFpsdfqFWmFR+A4D2pKTfFaR 2Cn3Y0u8938E3oVbgeLkSCGQ/7rabFEfe/EZDl1rI+VU27Q05EGfB0fl6v76f94k9XYg DXyA== X-Gm-Message-State: AOAM530rX9typN71BAivYVqVFhBszhloYDtLIUSQ4YMK3S1WXiVLVuJa V0UWZrwbVem5NxKgw1SnmMCUzk0Q0CsqSc+E21I= X-Google-Smtp-Source: ABdhPJyES3OOZdc3Rm5NIbkZQm2fOdpikY6zvw2E4r08/fVYUQL+sn3/8udU48KybuFSf+RW5DgGz5xYI5whS1QJ9so= X-Received: by 2002:ab0:3d1:: with SMTP id 75mr1793111uau.106.1622125626361; Thu, 27 May 2021 07:27:06 -0700 (PDT) MIME-Version: 1.0 References: <20210527143047.123611-1-wangkefeng.wang@huawei.com> In-Reply-To: <20210527143047.123611-1-wangkefeng.wang@huawei.com> From: Geert Uytterhoeven Date: Thu, 27 May 2021 16:26:54 +0200 Message-ID: Subject: Re: [PATCH] mm: generalize ZONE_[DMA|DMA32] To: Kefeng Wang Cc: Andrew Morton , alpha , Linux ARM , "linux-ia64@vger.kernel.org" , linux-m68k , "open list:BROADCOM NVRAM DRIVER" , linuxppc-dev , linux-riscv , linux-s390 , sparclinux , Linux MM , Catalin Marinas , Will Deacon , Thomas Bogendoerfer , "David S. Miller" , Ingo Molnar , Borislav Petkov , Palmer Dabbelt , Richard Henderson , Russell King Content-Type: text/plain; charset="UTF-8" X-Rspamd-Queue-Id: D31FF40F8C01 Authentication-Results: imf17.hostedemail.com; dkim=none; dmarc=none; spf=pass (imf17.hostedemail.com: domain of geertuytterhoeven@gmail.com designates 209.85.222.49 as permitted sender) smtp.mailfrom=geertuytterhoeven@gmail.com X-Rspamd-Server: rspam04 X-Stat-Signature: ui4nknpon4t13ezamnp1zs9n8ies7ght X-HE-Tag: 1622125621-529982 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 Thu, May 27, 2021 at 4:21 PM Kefeng Wang wrote: > ZONE_[DMA|DMA32] configs have duplicate definitions on platforms > that subscribe them. Instead, just make them generic options which > can be selected on applicable platforms. > > Also only x86/arm64 architectures could enable both ZONE_DMA and > ZONE_DMA32 if EXPERT, add ARCH_HAS_ZONE_DMA_SET to make dma zone > configurable and visible on the two architectures. > > Cc: Andrew Morton > Cc: Catalin Marinas > Cc: Will Deacon > Cc: Geert Uytterhoeven > Cc: Thomas Bogendoerfer > Cc: "David S. Miller" > Cc: Ingo Molnar > Cc: Borislav Petkov > Cc: Palmer Dabbelt > Cc: Richard Henderson > Cc: Russell King > Signed-off-by: Kefeng Wang > arch/m68k/Kconfig | 5 +---- Acked-by: Geert Uytterhoeven 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