Received: by 2002:a5b:505:0:0:0:0:0 with SMTP id o5csp1025367ybp;
        Thu, 17 Oct 2019 07:02:55 -0700 (PDT)
X-Google-Smtp-Source: APXvYqzXeO3xmrk2LFAGGWjcOxXjr3I+QSm15yv/iWoE3CP6gXWDu1NeEdkFb9GC9823pKWn8nSf
X-Received: by 2002:a17:906:19d9:: with SMTP id h25mr3507272ejd.297.1571320975495;
        Thu, 17 Oct 2019 07:02:55 -0700 (PDT)
ARC-Seal: i=1; a=rsa-sha256; t=1571320975; cv=none;
        d=google.com; s=arc-20160816;
        b=WPkHJrIcbmGItnA3PDwdYO0Tj9e4fe1zbBZL64rteRpuYBfC08FT25DM+4CTBpJbCl
         q/yn2Cvf2QjL9sI2wDzzQ06yL0gzQWMhCJALJRZbH2E3K22mq2asqG4X87fPsssBfGGx
         gOErChPxDXc7aADoFlfVSnCMAFzFINbBq4DeNd6CZnO26F9B5AmlM/EY6DPfX+1Iy4NT
         fc/Ex2NE0StJj60M3PkMqIcA5csJbk4/tNaKU4DTAVrUNp4LMr5ZB2J/lVqRVx42I7d3
         UWxSpvSgtRj1+tPj7pz9AgLt3zN0Wu7eOjlFhzwq3UAKTVXP7iBfGpF1N2I1dfR7K5OG
         AUoQ==
ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816;
        h=list-id:precedence:sender:content-transfer-encoding:mime-version
         :references:in-reply-to:from:subject:cc:to:message-id:date;
        bh=G13hwcH7Ad6qgoNxDiZ00A2EXvi+o6Dbjf79OrNa5Pk=;
        b=C3fx2WC0MB+ePzD3KrhL3UGRufrnpdp22nFvUKG4kBIh59gWkXM/K8i8bIrQ3TbqWn
         ZmW2ilBADLBfCiLDsKee5/PZYyoVBAK1gD6oII8QBvQr+X1cfqvxgNcgKsj6WAsJpTbT
         TKyJJi8YR12oOrxnTHHZyxMoiev5tgjcj6yXrV0WXtAqdQ0YOuMGxXSRhZUR0ZCiPKPX
         XLEt85AeRDFDm5ORSWuwWXjxqfFxWodPmbeGEc54WzM1AKUWrTg7AyBtizk3hi79jZeW
         xN6FWusm5m8TzrTfRhnnJnZYzCFIUvekQwb4aa8D7lDX50o6nvAPeGNRbZlT7UY/PeVj
         6kdg==
ARC-Authentication-Results: i=1; mx.google.com;
       spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org
Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67])
        by mx.google.com with ESMTP id pk19si1464789ejb.257.2019.10.17.07.02.29;
        Thu, 17 Oct 2019 07:02:55 -0700 (PDT)
Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
Authentication-Results: mx.google.com;
       spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S2388038AbfJPVUv (ORCPT <rfc822;chauncqc@gmail.com> + 99 others);
        Wed, 16 Oct 2019 17:20:51 -0400
Received: from shards.monkeyblade.net ([23.128.96.9]:54612 "EHLO
        shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
        with ESMTP id S1729231AbfJPVUu (ORCPT
        <rfc822;linux-kernel@vger.kernel.org>);
        Wed, 16 Oct 2019 17:20:50 -0400
Received: from localhost (unknown [IPv6:2601:601:9f00:1e2::d71])
        (using TLSv1 with cipher AES256-SHA (256/256 bits))
        (Client did not present a certificate)
        (Authenticated sender: davem-davemloft)
        by shards.monkeyblade.net (Postfix) with ESMTPSA id 41E8F144A067F;
        Wed, 16 Oct 2019 14:20:47 -0700 (PDT)
Date:   Wed, 16 Oct 2019 14:20:44 -0700 (PDT)
Message-Id: <20191016.142044.1532379900574948137.davem@davemloft.net>
To:     ztuowen@gmail.com
Cc:     lee.jones@linaro.org, linux-kernel@vger.kernel.org,
        andriy.shevchenko@linux.intel.com, mika.westerberg@linux.intel.com,
        acelan.kao@canonical.com, mcgrof@kernel.org, lkp@intel.com
Subject: Re: [PATCH v5 1/4] sparc64: implement ioremap_uc
From:   David Miller <davem@davemloft.net>
In-Reply-To: <20191016210629.1005086-2-ztuowen@gmail.com>
References: <20191016210629.1005086-1-ztuowen@gmail.com>
        <20191016210629.1005086-2-ztuowen@gmail.com>
X-Mailer: Mew version 6.8 on Emacs 26.1
Mime-Version: 1.0
Content-Type: Text/Plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.5.12 (shards.monkeyblade.net [149.20.54.216]); Wed, 16 Oct 2019 14:20:47 -0700 (PDT)
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

From: Tuowen Zhao <ztuowen@gmail.com>
Date: Wed, 16 Oct 2019 15:06:27 -0600

> On sparc64, the whole physical IO address space is accessible using
> physically addressed loads and stores. *_uc does nothing like the
> others.
> 
> Cc: <stable@vger.kernel.org>
> Reported-by: kbuild test robot <lkp@intel.com>
> Signed-off-by: Tuowen Zhao <ztuowen@gmail.com>

Acked-by: David S. Miller <davem@davemloft.net>