From nobody Sun Dec 28 00:45:01 2025 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 D7153C4332F for ; Thu, 14 Dec 2023 16:41:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1443557AbjLNQki (ORCPT ); Thu, 14 Dec 2023 11:40:38 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40730 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230281AbjLNQke (ORCPT ); Thu, 14 Dec 2023 11:40:34 -0500 Received: from mail-pl1-x62e.google.com (mail-pl1-x62e.google.com [IPv6:2607:f8b0:4864:20::62e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5EF2F131 for ; Thu, 14 Dec 2023 08:40:39 -0800 (PST) Received: by mail-pl1-x62e.google.com with SMTP id d9443c01a7336-1d0c4d84bf6so50125525ad.1 for ; Thu, 14 Dec 2023 08:40:39 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1702572038; x=1703176838; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=VRn1DTbbmWGLB1nxG36xstbG89fQMD3XiAVHtLkUKlI=; b=dOC8w8ZkjgYsSIKHdseod5HSGGz2xSe09FURQkBUmu+B5bBO8x+3T6QUOEZ4Y/K9Xi hnynuV/qS6f/A8//ztca9zirppl1oaW7uJ0iEUIka+q9U2bLOAR1HKKExNA2z4eDSU5G xUT8T31E3N0KuMr8f8S03nZEvHO/rhToBYtbHEQJYb+gGi0E/lqdtZd0TaTH91bra5+C XBc5Fj7GZEJ05Ce8dTipbjMrCVMB/OdQACs/euGG2Bff+XrDxVKS6v+QGwfMXb4/NHfT xCIa6VPNz3ICPCnlhQbKW8X/cpTXg3AwXTl6RUw25D64umwc2g0qvc7BSi6eq8wwvSuW cIXg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1702572038; x=1703176838; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=VRn1DTbbmWGLB1nxG36xstbG89fQMD3XiAVHtLkUKlI=; b=wTjFm54nyDXxCt+CoffqtuaUutCE7Df8MV77YRrWP2obi123adEhzVctfCfk3AXYsS ObN8763wMWOADvgo1OD3eMz4sBgF97ItLi8x66VC/a512m7pArf74Fa7s5T3mqOgX/ri QLsERUbR0qgNn6Dvu+8s9wrM4pwGvG3+h02myDT0/RxxQOEvunkLOYf2uh4NmhzrHIYm qOpDwDlokSUxbUV7k6/Oc5p7gx7/w1yAH8Eu6wvWty5YMMImhVITfqOt0zohI3nEG93i VZN152xgA+T/+GWghgHV2KdbyEiZUURXQlErFqE3WzITZ/e9Qx7I6cNctFux5O6cI5Pz veCA== X-Gm-Message-State: AOJu0Yx5kHLrHtw8ZMkfdl9fIeP326vZsLPOR0M5+wAqXPoHpE/ZYncq DMQbL+DQwTcVZ8WZjq9s1pgt+geH9GI= X-Google-Smtp-Source: AGHT+IESkQlL7JhHRaVr6xofo//eAXSa64RW84yr+T6FldHHTCobQXcxJcnZQDwsiYeR88Wr3ZnhTQ== X-Received: by 2002:a17:902:c3c5:b0:1d3:64dc:e9d0 with SMTP id j5-20020a170902c3c500b001d364dce9d0mr848917plj.26.1702572038411; Thu, 14 Dec 2023 08:40:38 -0800 (PST) Received: from code.. ([144.202.108.46]) by smtp.gmail.com with ESMTPSA id p12-20020a170902e74c00b001d0b32ec81esm12595897plf.79.2023.12.14.08.40.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 14 Dec 2023 08:40:38 -0800 (PST) From: Yuntao Wang To: linux-kernel@vger.kernel.org, kexec@lists.infradead.org, x86@kernel.org Cc: Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , "H. Peter Anvin" , Baoquan He , Vivek Goyal , Dave Young , Hari Bathini , Eric DeVolder , Andrew Morton , Sourabh Jain , Sean Christopherson , Takashi Iwai , Lianbo Jiang , Yuntao Wang Subject: [PATCH 2/3] x86/crash: use SZ_1M macro instead of hardcoded value Date: Fri, 15 Dec 2023 00:38:41 +0800 Message-ID: <20231214163842.129139-3-ytcoode@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20231214163842.129139-1-ytcoode@gmail.com> References: <20231214163842.129139-1-ytcoode@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Use SZ_1M macro instead of hardcoded 1<<20 to make code more readable. Signed-off-by: Yuntao Wang Acked-by: Baoquan He --- arch/x86/kernel/crash.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kernel/crash.c b/arch/x86/kernel/crash.c index 792231a56d11..249b5876e7ec 100644 --- a/arch/x86/kernel/crash.c +++ b/arch/x86/kernel/crash.c @@ -170,7 +170,7 @@ static int elf_header_exclude_ranges(struct crash_mem *= cmem) int ret =3D 0; =20 /* Exclude the low 1M because it is always reserved */ - ret =3D crash_exclude_mem_range(cmem, 0, (1<<20)-1); + ret =3D crash_exclude_mem_range(cmem, 0, SZ_1M - 1); if (ret) return ret; =20 --=20 2.43.0