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=-4.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS autolearn=ham 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 911C4C10F14 for ; Sun, 14 Apr 2019 16:03:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6A422218FF for ; Sun, 14 Apr 2019 16:03:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727631AbfDNQDM (ORCPT ); Sun, 14 Apr 2019 12:03:12 -0400 Received: from Galois.linutronix.de ([146.0.238.70]:43327 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726500AbfDNQDK (ORCPT ); Sun, 14 Apr 2019 12:03:10 -0400 Received: from localhost ([127.0.0.1] helo=nanos.tec.linutronix.de) by Galois.linutronix.de with esmtp (Exim 4.80) (envelope-from ) id 1hFhb2-0002ir-DB; Sun, 14 Apr 2019 18:03:08 +0200 Message-Id: <20190414160145.736241969@linutronix.de> User-Agent: quilt/0.65 Date: Sun, 14 Apr 2019 18:00:00 +0200 From: Thomas Gleixner To: LKML Cc: x86@kernel.org, Andy Lutomirski , Josh Poimboeuf , Sean Christopherson Subject: [patch V3 24/32] x86/irq/32: Make irq stack a character array References: <20190414155936.679808307@linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org There is no reason to have an u32 array in struct irq_stack. The only purpose of the array is to size the struct properly. Preparatory change for sharing struct irq_stack with 64-bit. Signed-off-by: Thomas Gleixner --- arch/x86/include/asm/processor.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/arch/x86/include/asm/processor.h +++ b/arch/x86/include/asm/processor.h @@ -422,7 +422,7 @@ DECLARE_PER_CPU_ALIGNED(struct stack_can * per-CPU IRQ handling stacks */ struct irq_stack { - u32 stack[IRQ_STACK_SIZE / sizeof(u32)]; + char stack[IRQ_STACK_SIZE]; } __aligned(IRQ_STACK_SIZE); DECLARE_PER_CPU(struct irq_stack *, hardirq_stack);