From patchwork Mon Mar 2 14:55:43 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vladimir Murzin X-Patchwork-Id: 5914451 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 8A54ABF440 for ; Mon, 2 Mar 2015 15:04:30 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id AC50A201DD for ; Mon, 2 Mar 2015 15:04:29 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id B52B4201CD for ; Mon, 2 Mar 2015 15:04:28 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1YSRqM-0003l7-FB; Mon, 02 Mar 2015 15:01:14 +0000 Received: from service87.mimecast.com ([91.220.42.44]) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1YSRlc-00077n-Uu for linux-arm-kernel@lists.infradead.org; Mon, 02 Mar 2015 14:56:23 +0000 Received: from cam-owa2.Emea.Arm.com (fw-tnat.cambridge.arm.com [217.140.96.140]) by service87.mimecast.com; Mon, 02 Mar 2015 14:55:55 +0000 Received: from login1.euhpc.arm.com ([10.1.255.212]) by cam-owa2.Emea.Arm.com with Microsoft SMTPSVC(6.0.3790.3959); Mon, 2 Mar 2015 14:55:53 +0000 From: Vladimir Murzin To: linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-arch@vger.kernel.org, x86@kernel.org, linux-arm-kernel@lists.infradead.org Subject: [RFC PATCH 2/4] memtest: use phys_addr_t for physical addresses Date: Mon, 2 Mar 2015 14:55:43 +0000 Message-Id: <1425308145-20769-3-git-send-email-vladimir.murzin@arm.com> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1425308145-20769-1-git-send-email-vladimir.murzin@arm.com> References: <1425308145-20769-1-git-send-email-vladimir.murzin@arm.com> X-OriginalArrivalTime: 02 Mar 2015 14:55:53.0878 (UTC) FILETIME=[FB515B60:01D054F8] X-MC-Unique: 115030214555510201 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20150302_065621_396299_0276CD70 X-CRM114-Status: UNSURE ( 8.55 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -2.3 (--) Cc: mark.rutland@arm.com, lauraa@codeaurora.org, arnd@arndb.de, ard.biesheuvel@linaro.org, catalin.marinas@arm.com, will.deacon@arm.com, mingo@redhat.com, hpa@zytor.com, linux@arm.linux.org.uk, tglx@linutronix.de, akpm@linux-foundation.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Since memtest might be used by other architectures pass input parameters as phys_addr_t instead of long to prevent overflow. --- include/linux/memblock.h | 4 ++-- mm/memtest.c | 16 ++++++++-------- 2 files changed, 10 insertions(+), 10 deletions(-) diff --git a/include/linux/memblock.h b/include/linux/memblock.h index 6724cb0..9497ec7 100644 --- a/include/linux/memblock.h +++ b/include/linux/memblock.h @@ -366,9 +366,9 @@ static inline unsigned long memblock_region_reserved_end_pfn(const struct memblo #endif #ifdef CONFIG_MEMTEST -extern void early_memtest(unsigned long start, unsigned long end); +extern void early_memtest(phys_addr_t start, phys_addr_t end); #else -static inline void early_memtest(unsigned long start, unsigned long end) +static inline void early_memtest(phys_addr_t start, phys_addr_t end) { } #endif diff --git a/mm/memtest.c b/mm/memtest.c index 1e9da79..1997d93 100644 --- a/mm/memtest.c +++ b/mm/memtest.c @@ -29,7 +29,7 @@ static u64 patterns[] __initdata = { 0x7a6c7258554e494cULL, /* yeah ;-) */ }; -static void __init reserve_bad_mem(u64 pattern, u64 start_bad, u64 end_bad) +static void __init reserve_bad_mem(u64 pattern, phys_addr_t start_bad, phys_addr_t end_bad) { printk(KERN_INFO " %016llx bad mem addr %010llx - %010llx reserved\n", (unsigned long long) pattern, @@ -38,11 +38,11 @@ static void __init reserve_bad_mem(u64 pattern, u64 start_bad, u64 end_bad) memblock_reserve(start_bad, end_bad - start_bad); } -static void __init memtest(u64 pattern, u64 start_phys, u64 size) +static void __init memtest(u64 pattern, phys_addr_t start_phys, phys_addr_t size) { u64 *p, *start, *end; - u64 start_bad, last_bad; - u64 start_phys_aligned; + phys_addr_t start_bad, last_bad; + phys_addr_t start_phys_aligned; const size_t incr = sizeof(pattern); start_phys_aligned = ALIGN(start_phys, incr); @@ -69,14 +69,14 @@ static void __init memtest(u64 pattern, u64 start_phys, u64 size) reserve_bad_mem(pattern, start_bad, last_bad + incr); } -static void __init do_one_pass(u64 pattern, u64 start, u64 end) +static void __init do_one_pass(u64 pattern, phys_addr_t start, phys_addr_t end) { u64 i; phys_addr_t this_start, this_end; for_each_free_mem_range(i, NUMA_NO_NODE, &this_start, &this_end, NULL) { - this_start = clamp_t(phys_addr_t, this_start, start, end); - this_end = clamp_t(phys_addr_t, this_end, start, end); + this_start = clamp(this_start, start, end); + this_end = clamp(this_end, start, end); if (this_start < this_end) { printk(KERN_INFO " %010llx - %010llx pattern %016llx\n", (unsigned long long)this_start, @@ -102,7 +102,7 @@ static int __init parse_memtest(char *arg) early_param("memtest", parse_memtest); -void __init early_memtest(unsigned long start, unsigned long end) +void __init early_memtest(phys_addr_t start, phys_addr_t end) { unsigned int i; unsigned int idx = 0;