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=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT 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 BAF68C33C9B for ; Tue, 7 Jan 2020 19:44:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9CFCB24672 for ; Tue, 7 Jan 2020 19:44:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728784AbgAGTol (ORCPT ); Tue, 7 Jan 2020 14:44:41 -0500 Received: from mail-qt1-f193.google.com ([209.85.160.193]:42417 "EHLO mail-qt1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728369AbgAGTok (ORCPT ); Tue, 7 Jan 2020 14:44:40 -0500 Received: by mail-qt1-f193.google.com with SMTP id j5so742070qtq.9 for ; Tue, 07 Jan 2020 11:44:39 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=ptIoTNzH/x5OyREv4tWBlwHk2cNJ81G7inlJs7+x/90=; b=kfyfnGhREnJ/E97ZKaeRrmj0+eg1QlN6ubzWx8wPD6myxzMquv5eeUj3lpP32EzbTC /A7g7VghqHCwCGCi7ricUqJU/vK8ryp+YBR7pVFP92ccj/VogMDK4nN2aMIDkr6KnQtW tDepj0QXmvAVQ/nvLVy4DQsqOmhkROxWSbznGHWwibI5iTY2uHsFy7a0p8vL0Ug9Td84 Z7VDeeTXk78Pb63hLiXYejnO5NDTB4Mf28fz/44/RAU8PGZlA2C7vsa3aO12Yc8jsB/i JEs5VCYT+OmEWbAbVBVb05W6vCcSXYjhGO9eVybEEAy4oTjM1uBYyOUfl6FC691JW9y2 f2Qg== X-Gm-Message-State: APjAAAUs285vCLM1Xv9dETLJTTriBlqVLFn6fK8L7qVypJenGMKm8ZkM ojPbkoQo3ucCDh9r0geWKzE= X-Google-Smtp-Source: APXvYqxv9T5l5rXVUZc139nsAd6zS9RbFhzH4sdnUMwjD78ftrhauuRx6yuRt3EGaYFT56DwJdBeTg== X-Received: by 2002:ac8:21b5:: with SMTP id 50mr564752qty.10.1578426279295; Tue, 07 Jan 2020 11:44:39 -0800 (PST) Received: from rani.riverdale.lan ([2001:470:1f07:5f3::b55f]) by smtp.gmail.com with ESMTPSA id s20sm280137qkg.131.2020.01.07.11.44.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 07 Jan 2020 11:44:38 -0800 (PST) From: Arvind Sankar To: Thomas Gleixner , Ingo Molnar , Borislav Petkov , "H. Peter Anvin" Cc: x86@kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 2/3] x86/boot/compressed/64: Use leal to initialize boot stack pointer Date: Tue, 7 Jan 2020 14:44:35 -0500 Message-Id: <20200107194436.2166846-2-nivedita@alum.mit.edu> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20200107194436.2166846-1-nivedita@alum.mit.edu> References: <20200107194436.2166846-1-nivedita@alum.mit.edu> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org It's shorter, and it's what we use in every other place, so make it consistent. Signed-off-by: Arvind Sankar --- arch/x86/boot/compressed/head_64.S | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S index 58a512e33d8d..edd29340bcfd 100644 --- a/arch/x86/boot/compressed/head_64.S +++ b/arch/x86/boot/compressed/head_64.S @@ -81,9 +81,7 @@ SYM_FUNC_START(startup_32) subl $1b, %ebp /* setup a stack and make sure cpu supports long mode. */ - movl $boot_stack_end, %eax - addl %ebp, %eax - movl %eax, %esp + leal boot_stack_end(%ebp), %esp call verify_cpu testl %eax, %eax -- 2.24.1