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=-3.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS 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 99D87C433FF for ; Fri, 9 Aug 2019 07:21:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7930E2173E for ; Fri, 9 Aug 2019 07:21:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2405775AbfHIHVl (ORCPT ); Fri, 9 Aug 2019 03:21:41 -0400 Received: from mail-ot1-f68.google.com ([209.85.210.68]:46586 "EHLO mail-ot1-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2405701AbfHIHVk (ORCPT ); Fri, 9 Aug 2019 03:21:40 -0400 Received: by mail-ot1-f68.google.com with SMTP id z17so10595949otk.13; Fri, 09 Aug 2019 00:21:39 -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=A7mCF4lTq2gFXOvcmY2h+y2/MZQDfsM2+XB9S0QJ6k4=; b=Yq/lZ82TgclMTYySws9jxx3lmQUskkUTnEY9kSysVlelH0jt+6mVkzvVk6zo/HvC5H 0Ycj3+nqrpwVw/xxaOyEZm2bs1TSxraY8+OpQhrjW0Cs8kg4jRnQzC44f2vtqKGJPhbX 4OUr7kkbMPHSmD6rFDqGZnpylXj0fK+0OpKRl1kQU5uLnZlc6567k0/8/K2FCd6BnTGU 2RUwfTM04tj7iG3SGB6fTkIwS/yhHofva9gY+ey67NjIDYK4IwVA79h6VCycbj2EOznY 0RD8xpi+kfGVC3Aqw65FKhR1plD+RGHi4moZJNIMnk5ldNljscZawjSAxXgxXgZsh6b3 fPpw== X-Gm-Message-State: APjAAAVD/yZKoa7JrOvu4j09XLaSf/14kav8vi6CRBlQPoeYr4JHwd38 jR427iRv9vQbqfIAF8xvdnaU9JE2h12Sx+dhUl4= X-Google-Smtp-Source: APXvYqyBXPOK98jaQhUmqtFlEEGP/W76NVu4RQ2ZHS+SsKdevOL3KYGUiRHhF15E80P339HCx6FddAsKPmlukbGoIK8= X-Received: by 2002:a9d:7a90:: with SMTP id l16mr17247630otn.297.1565335299510; Fri, 09 Aug 2019 00:21:39 -0700 (PDT) MIME-Version: 1.0 References: <20190808160005.10325-1-hch@lst.de> <20190808160005.10325-9-hch@lst.de> In-Reply-To: <20190808160005.10325-9-hch@lst.de> From: Geert Uytterhoeven Date: Fri, 9 Aug 2019 09:21:28 +0200 Message-ID: Subject: Re: [PATCH 8/8] dma-mapping: remove CONFIG_ARCH_NO_COHERENT_DMA_MMAP To: Christoph Hellwig Cc: Linux IOMMU , Marek Szyprowski , Vladimir Murzin , Takashi Iwai , Helge Deller , Robin Murphy , Michal Simek , Linux ARM , linux-m68k , Parisc List , Linux-sh list , linux-xtensa@linux-xtensa.org, linuxppc-dev , "the arch/x86 maintainers" , Linux Kernel Mailing List Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Christoph, On Thu, Aug 8, 2019 at 6:01 PM Christoph Hellwig wrote: > CONFIG_ARCH_NO_COHERENT_DMA_MMAP is now functionally identical to > !CONFIG_MMU, so remove the separate symbol. The only difference is that > arm did not set it for !CONFIG_MMU, but arm uses a separate dma mapping > implementation including its own mmap method, which is handled by moving > the CONFIG_MMU check in dma_can_mmap so that is only applies to the > dma-direct case, just as the other ifdefs for it. > > Signed-off-by: Christoph Hellwig > arch/m68k/Kconfig | 1 - For m68k: 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