From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751077AbWBFKzJ (ORCPT ); Mon, 6 Feb 2006 05:55:09 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751078AbWBFKzJ (ORCPT ); Mon, 6 Feb 2006 05:55:09 -0500 Received: from fgwmail5.fujitsu.co.jp ([192.51.44.35]:13455 "EHLO fgwmail5.fujitsu.co.jp") by vger.kernel.org with ESMTP id S1751077AbWBFKzH (ORCPT ); Mon, 6 Feb 2006 05:55:07 -0500 Message-ID: <43E72B5D.5030402@jp.fujitsu.com> Date: Mon, 06 Feb 2006 19:56:29 +0900 From: KAMEZAWA Hiroyuki User-Agent: Thunderbird 1.5 (Windows/20051201) MIME-Version: 1.0 To: Linux Kernel Mailing List Subject: [RFC][PATCH] unify pfn_to_page [7/25] h8300 pfn_to_page/page_to_pfn Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Looks complicated.. original page_to_pfn() was (((page - mem_map) << PAGE_SHIFT) + PAGE_OFFSET) >> PAGE_SHIFT. This is same to (unsigned long) (page - mem_map) + (PAGE_OFFSET >> PAGE_SHIFT). h8300 can use generic ones. Signed-Off-By: KAMEZAWA Hiruyoki Index: cleanup_pfn_page/include/asm-h8300/page.h =================================================================== --- cleanup_pfn_page.orig/include/asm-h8300/page.h +++ cleanup_pfn_page/include/asm-h8300/page.h @@ -71,8 +71,7 @@ extern unsigned long memory_end; #define page_to_virt(page) ((((page) - mem_map) << PAGE_SHIFT) + PAGE_OFFSET) #define pfn_valid(page) (page < max_mapnr) -#define pfn_to_page(pfn) virt_to_page(pfn_to_virt(pfn)) -#define page_to_pfn(page) virt_to_pfn(page_to_virt(page)) +#define ARCH_PFN_OFFSET (PAGE_OFFSET >> PAGE_SHIFT) #define virt_addr_valid(kaddr) (((void *)(kaddr) >= (void *)PAGE_OFFSET) && \ ((void *)(kaddr) < (void *)memory_end))