From nobody Mon Feb 9 18:19:32 2026 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 AEC70EB64DD for ; Wed, 12 Jul 2023 03:31:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231497AbjGLDb0 (ORCPT ); Tue, 11 Jul 2023 23:31:26 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37082 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229843AbjGLDbU (ORCPT ); Tue, 11 Jul 2023 23:31:20 -0400 Received: from out0-201.mail.aliyun.com (out0-201.mail.aliyun.com [140.205.0.201]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 97704E5F for ; Tue, 11 Jul 2023 20:31:19 -0700 (PDT) X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R201e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=ay29a033018047206;MF=houwenlong.hwl@antgroup.com;NM=1;PH=DS;RN=13;SR=0;TI=SMTPD_---.TrdHwby_1689132672; Received: from localhost(mailfrom:houwenlong.hwl@antgroup.com fp:SMTPD_---.TrdHwby_1689132672) by smtp.aliyun-inc.com; Wed, 12 Jul 2023 11:31:13 +0800 From: "Hou Wenlong" To: linux-kernel@vger.kernel.org Cc: "Lai Jiangshan" , "Hou Wenlong" , "Thomas Gleixner" , "Ingo Molnar" , "Borislav Petkov" , "Dave Hansen" , "=?UTF-8?B?bWFpbnRhaW5lcjpYODYgQVJDSElURUNUVVJFIDMyLUJJVCBBTkQgNjQtQklU?=" , "H. Peter Anvin" , "Josh Poimboeuf" , "Anshuman Khandual" , "Mike Rapoport" , "Pasha Tatashin" Subject: [PATCH RFC 1/7] x86/head/64: Mark startup_gdt and startup_gdt_descr as __initdata Date: Wed, 12 Jul 2023 11:30:05 +0800 Message-Id: X-Mailer: git-send-email 2.31.1 In-Reply-To: References: 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" As startup_gdt and startup_gdt_descr are only used in booting, make them as __initdata to allow them to be freed after boot. Signed-off-by: Hou Wenlong --- arch/x86/kernel/head64.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c index 49f7629b17f7..dd357807ffb5 100644 --- a/arch/x86/kernel/head64.c +++ b/arch/x86/kernel/head64.c @@ -69,7 +69,7 @@ EXPORT_SYMBOL(vmemmap_base); /* * GDT used on the boot CPU before switching to virtual addresses. */ -static struct desc_struct startup_gdt[GDT_ENTRIES] =3D { +static struct desc_struct startup_gdt[GDT_ENTRIES] __initdata =3D { [GDT_ENTRY_KERNEL32_CS] =3D GDT_ENTRY_INIT(0xc09b, 0, 0xfffff), [GDT_ENTRY_KERNEL_CS] =3D GDT_ENTRY_INIT(0xa09b, 0, 0xfffff), [GDT_ENTRY_KERNEL_DS] =3D GDT_ENTRY_INIT(0xc093, 0, 0xfffff), @@ -79,7 +79,7 @@ static struct desc_struct startup_gdt[GDT_ENTRIES] =3D { * Address needs to be set at runtime because it references the startup_gdt * while the kernel still uses a direct mapping. */ -static struct desc_ptr startup_gdt_descr =3D { +static struct desc_ptr startup_gdt_descr __initdata =3D { .size =3D sizeof(startup_gdt), .address =3D 0, }; --=20 2.31.1