From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751681AbdH1Gxi (ORCPT ); Mon, 28 Aug 2017 02:53:38 -0400 Received: from Galois.linutronix.de ([146.0.238.70]:45779 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751436AbdH1Gx0 (ORCPT ); Mon, 28 Aug 2017 02:53:26 -0400 Message-Id: <20170828064957.954214927@linutronix.de> User-Agent: quilt/0.63-1 Date: Mon, 28 Aug 2017 08:47:38 +0200 From: Thomas Gleixner To: LKML Cc: Ingo Molnar , Peter Anvin , Peter Zijlstra , Andy Lutomirski , Borislav Petkov , Steven Rostedt Subject: [patch V3 23/44] x86/percpu: Use static initializer for GDT entry References: <20170828064715.802987421@linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15 Content-Disposition: inline; filename=x86-percpu--Use-static-initializer-for-gdt-entry.patch Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The IDT cleanup is about to remove pack_descriptor(). The GDT setup for the percpu storage can be achieved with the static initializer as well. Replace it. Signed-off-by: Thomas Gleixner --- arch/x86/kernel/setup_percpu.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) --- a/arch/x86/kernel/setup_percpu.c +++ b/arch/x86/kernel/setup_percpu.c @@ -155,13 +155,10 @@ static void __init pcpup_populate_pte(un static inline void setup_percpu_segment(int cpu) { #ifdef CONFIG_X86_32 - struct desc_struct gdt; + struct desc_struct d = GDT_ENTRY_INIT(0x8092, per_cpu_offset(cpu), + 0xFFFFF); - pack_descriptor(&gdt, per_cpu_offset(cpu), 0xFFFFF, - 0x2 | DESCTYPE_S, 0x8); - gdt.s = 1; - write_gdt_entry(get_cpu_gdt_rw(cpu), - GDT_ENTRY_PERCPU, &gdt, DESCTYPE_S); + write_gdt_entry(get_cpu_gdt_rw(cpu), GDT_ENTRY_PERCPU, &d, DESCTYPE_S); #endif }