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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 564A4C43334 for ; Fri, 10 Jun 2022 09:15:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1347904AbiFJJPO (ORCPT ); Fri, 10 Jun 2022 05:15:14 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38902 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344071AbiFJJOs (ORCPT ); Fri, 10 Jun 2022 05:14:48 -0400 Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 46E8D202D1C for ; Fri, 10 Jun 2022 02:13:42 -0700 (PDT) Received: from dggpemm500024.china.huawei.com (unknown [172.30.72.53]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4LKFbN54gyzjXYb; Fri, 10 Jun 2022 17:12:16 +0800 (CST) Received: from dggpemm500001.china.huawei.com (7.185.36.107) by dggpemm500024.china.huawei.com (7.185.36.203) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Fri, 10 Jun 2022 17:13:34 +0800 Received: from localhost.localdomain.localdomain (10.175.113.25) by dggpemm500001.china.huawei.com (7.185.36.107) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Fri, 10 Jun 2022 17:13:33 +0800 From: Kefeng Wang To: , , , , CC: , , , Baoquan He , Kefeng Wang , Christoph Hellwig , Anshuman Khandual Subject: [PATCH v5 resend 2/6] mm: ioremap: Use more sensible name in ioremap_prot() Date: Fri, 10 Jun 2022 17:22:55 +0800 Message-ID: <20220610092255.32445-1-wangkefeng.wang@huawei.com> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20220607125027.44946-3-wangkefeng.wang@huawei.com> References: <20220607125027.44946-3-wangkefeng.wang@huawei.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Content-Type: text/plain; charset=US-ASCII X-Originating-IP: [10.175.113.25] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To dggpemm500001.china.huawei.com (7.185.36.107) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Use more meaningful and sensible naming phys_addr instead of addr in ioremap_prot(). Suggested-by: Andrew Morton Reviewed-by: Christoph Hellwig Reviewed-by: Baoquan He Reviewed-by: Anshuman Khandual Signed-off-by: Kefeng Wang --- v5 resend: - use sensible and add RB include/asm-generic/io.h | 3 ++- mm/ioremap.c | 14 ++++++++------ 2 files changed, 10 insertions(+), 7 deletions(-) diff --git a/include/asm-generic/io.h b/include/asm-generic/io.h index 7ce93aaf69f8..b76379628a02 100644 --- a/include/asm-generic/io.h +++ b/include/asm-generic/io.h @@ -964,7 +964,8 @@ static inline void iounmap(volatile void __iomem *addr) #elif defined(CONFIG_GENERIC_IOREMAP) #include -void __iomem *ioremap_prot(phys_addr_t addr, size_t size, unsigned long prot); +void __iomem *ioremap_prot(phys_addr_t phys_addr, size_t size, + unsigned long prot); void iounmap(volatile void __iomem *addr); static inline void __iomem *ioremap(phys_addr_t addr, size_t size) diff --git a/mm/ioremap.c b/mm/ioremap.c index 5fe598ecd9b7..2d754b48d230 100644 --- a/mm/ioremap.c +++ b/mm/ioremap.c @@ -11,20 +11,21 @@ #include #include -void __iomem *ioremap_prot(phys_addr_t addr, size_t size, unsigned long prot) +void __iomem *ioremap_prot(phys_addr_t phys_addr, size_t size, + unsigned long prot) { unsigned long offset, vaddr; phys_addr_t last_addr; struct vm_struct *area; /* Disallow wrap-around or zero size */ - last_addr = addr + size - 1; - if (!size || last_addr < addr) + last_addr = phys_addr + size - 1; + if (!size || last_addr < phys_addr) return NULL; /* Page-align mappings */ - offset = addr & (~PAGE_MASK); - addr -= offset; + offset = phys_addr & (~PAGE_MASK); + phys_addr -= offset; size = PAGE_ALIGN(size + offset); area = get_vm_area_caller(size, VM_IOREMAP, @@ -33,7 +34,8 @@ void __iomem *ioremap_prot(phys_addr_t addr, size_t size, unsigned long prot) return NULL; vaddr = (unsigned long)area->addr; - if (ioremap_page_range(vaddr, vaddr + size, addr, __pgprot(prot))) { + if (ioremap_page_range(vaddr, vaddr + size, phys_addr, + __pgprot(prot))) { free_vm_area(area); return NULL; } -- 2.35.3