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[2620:137:e000::1:20]) by mx.google.com with ESMTP id fx17-20020a1709069e9100b00877da25cb31si17805266ejc.869.2023.02.20.22.22.47; Mon, 20 Feb 2023 22:23:13 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@redhat.com header.s=mimecast20190719 header.b="aQ1i/cSt"; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=redhat.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232946AbjBUGI3 (ORCPT + 99 others); Tue, 21 Feb 2023 01:08:29 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33960 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233073AbjBUGIV (ORCPT ); Tue, 21 Feb 2023 01:08:21 -0500 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3B2DA24133 for ; Mon, 20 Feb 2023 22:07:35 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1676959654; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=A2giW3bT8cm75k/LWtJ7T2CNx/fQyX6UZRlac4+D5AE=; b=aQ1i/cSt9qU6/pfKmUBf7U2MkOdWKcDcnDgHYRYvuKTtodLkdPaIMS46ckJ423IScBUq7P u6az3l1Ydob2L4HjzGpHOjlRqRFyqHLqJu1ttXOn4esapQ+YlEfKVXiu9iSmczoJMyWeor QKazWAaWpvvmjJ4e/zHZ5EH5jlCU+kk= Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-315-3v5XzhKZNzeoIoT0UyYacw-1; Tue, 21 Feb 2023 01:07:30 -0500 X-MC-Unique: 3v5XzhKZNzeoIoT0UyYacw-1 Received: from smtp.corp.redhat.com (int-mx09.intmail.prod.int.rdu2.redhat.com [10.11.54.9]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 46CE11C04347; Tue, 21 Feb 2023 06:07:30 +0000 (UTC) Received: from MiWiFi-R3L-srv.redhat.com (ovpn-13-7.pek2.redhat.com [10.72.13.7]) by smtp.corp.redhat.com (Postfix) with ESMTP id 4E9E1492B04; Tue, 21 Feb 2023 06:07:26 +0000 (UTC) From: Baoquan He To: linux-kernel@vger.kernel.org Cc: linux-mm@kvack.org, arnd@arndb.de, hch@infradead.org, mcgrof@kernel.org, Baoquan He Subject: [RFC PATCH 0/2] arch/*/io.h: remove ioremap_uc in some architectures Date: Tue, 21 Feb 2023 14:07:21 +0800 Message-Id: <20230221060723.26291-1-bhe@redhat.com> MIME-Version: 1.0 Content-type: text/plain X-Scanned-By: MIMEDefang 3.1 on 10.11.54.9 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H2,SPF_HELO_NONE,SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1758420630879568703?= X-GMAIL-MSGID: =?utf-8?q?1758420630879568703?= In a patchset reviewing, Arnd suggested removing arch specific ioremap_uc() and using default one defined in asm-generic/io.h instead, other than x86 and ia64. Please see below link for more details: https://lore.kernel.org/all/056cc71f-7fb9-4d38-a442-a05de6f7d437@app.fastmail.com/T/#u And Arnd also provided an old link where people earlier discussed this. https://lore.kernel.org/all/20191111192258.2234502-1-arnd@arndb.de/ So in this patchset, I firstly add including asm-generic/io.h for mips, then remove all arch specific ioremap_uc() definitions, except of x86 ans ia64. With the removing, those ARCH-es will have default ioremap_uc() defined in asm-generic/io.h. Baoquan He (2): mips: add including arch/*/io.h: remove ioremap_uc in some architectures arch/alpha/include/asm/io.h | 1 - arch/hexagon/include/asm/io.h | 3 --- arch/m68k/include/asm/kmap.h | 1 - arch/mips/include/asm/io.h | 47 +++++++++++++++++++++++++++++++++- arch/mips/include/asm/mmiowb.h | 2 -- arch/parisc/include/asm/io.h | 2 -- arch/powerpc/include/asm/io.h | 1 - arch/sh/include/asm/io.h | 2 -- arch/sparc/include/asm/io_64.h | 1 - 9 files changed, 46 insertions(+), 14 deletions(-)