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 X-Spam-Level: X-Spam-Status: No, score=-19.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 14A0BC4361A for ; Mon, 12 Apr 2021 16:40:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DFBDB61353 for ; Mon, 12 Apr 2021 16:40:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344270AbhDLQjZ (ORCPT ); Mon, 12 Apr 2021 12:39:25 -0400 Received: from mail.kernel.org ([198.145.29.99]:35568 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244914AbhDLQbY (ORCPT ); Mon, 12 Apr 2021 12:31:24 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 6656E613AC; Mon, 12 Apr 2021 16:26:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1618244762; bh=uAAUyMljlcrTr7L/lCee6dkkMCsypVanYPJhHqDkpug=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=A/kh9wvMxA3k0dYRQHJq8oUGBW52negSHFCxlWiaHY+yrWobSrC2fTwqctIqTW0rR pSRc+K9twh3ldH5nOZXMBlpJ9oCOijb9cr41rj341cOq/phUjB/SFMq6DVOG1MMJxQ KWqmUusDT61O6y5ag8iVvJB7pllNe6Yf1Bffu4jtweR0+QUQkmitrYXBOFp8dNyf5/ rVo/LHyaVOrp5e3VfPujiPhIFq/uGaVjZvh7yXkuaaJrBV7LMCGIbSsZDLE2Vmq8go OuJax0KVctJUW990hObIAQs/mOtG+ulkiCz1hgqbDPDaiUErool4vGOGxVSD2XCDqX 966Z6xvEwE6Uw== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Arnd Bergmann , Nathan Chancellor , Santosh Shilimkar , Sasha Levin , linux-arm-kernel@lists.infradead.org, clang-built-linux@googlegroups.com Subject: [PATCH AUTOSEL 4.19 07/28] ARM: keystone: fix integer overflow warning Date: Mon, 12 Apr 2021 12:25:32 -0400 Message-Id: <20210412162553.315227-7-sashal@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210412162553.315227-1-sashal@kernel.org> References: <20210412162553.315227-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Arnd Bergmann [ Upstream commit 844b85dda2f569943e1e018fdd63b6f7d1d6f08e ] clang warns about an impossible condition when building with 32-bit phys_addr_t: arch/arm/mach-keystone/keystone.c:79:16: error: result of comparison of constant 51539607551 with expression of type 'phys_addr_t' (aka 'unsigned int') is always false [-Werror,-Wtautological-constant-out-of-range-compare] mem_end > KEYSTONE_HIGH_PHYS_END) { ~~~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~~ arch/arm/mach-keystone/keystone.c:78:16: error: result of comparison of constant 34359738368 with expression of type 'phys_addr_t' (aka 'unsigned int') is always true [-Werror,-Wtautological-constant-out-of-range-compare] if (mem_start < KEYSTONE_HIGH_PHYS_START || ~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~ Change the temporary variable to a fixed-size u64 to avoid the warning. Signed-off-by: Arnd Bergmann Reviewed-by: Nathan Chancellor Acked-by: Santosh Shilimkar Link: https://lore.kernel.org/r/20210323131814.2751750-1-arnd@kernel.org' Signed-off-by: Arnd Bergmann Signed-off-by: Sasha Levin --- arch/arm/mach-keystone/keystone.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm/mach-keystone/keystone.c b/arch/arm/mach-keystone/keystone.c index 84613abf35a3..79ff5b953431 100644 --- a/arch/arm/mach-keystone/keystone.c +++ b/arch/arm/mach-keystone/keystone.c @@ -65,7 +65,7 @@ static void __init keystone_init(void) static long long __init keystone_pv_fixup(void) { long long offset; - phys_addr_t mem_start, mem_end; + u64 mem_start, mem_end; mem_start = memblock_start_of_DRAM(); mem_end = memblock_end_of_DRAM(); @@ -78,7 +78,7 @@ static long long __init keystone_pv_fixup(void) if (mem_start < KEYSTONE_HIGH_PHYS_START || mem_end > KEYSTONE_HIGH_PHYS_END) { pr_crit("Invalid address space for memory (%08llx-%08llx)\n", - (u64)mem_start, (u64)mem_end); + mem_start, mem_end); return 0; } -- 2.30.2