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=-14.2 required=3.0 tests=BAYES_00,DATE_IN_PAST_06_12, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,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 5DC7BC47092 for ; Tue, 1 Jun 2021 16:37:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 45E2A613B6 for ; Tue, 1 Jun 2021 16:37:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234556AbhFAQjZ (ORCPT ); Tue, 1 Jun 2021 12:39:25 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55854 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234553AbhFAQjW (ORCPT ); Tue, 1 Jun 2021 12:39:22 -0400 Received: from mail-pg1-x52e.google.com (mail-pg1-x52e.google.com [IPv6:2607:f8b0:4864:20::52e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E7206C061756 for ; Tue, 1 Jun 2021 09:37:40 -0700 (PDT) Received: by mail-pg1-x52e.google.com with SMTP id 133so6099711pgf.2 for ; Tue, 01 Jun 2021 09:37:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=yMTAZuDW2H2M7nToM7//9afS1Om7U60tJgUi/NDXyhk=; b=PWbbbgJBvILK77NXu+WxKc2c2FT8m09eAeJX2+jXt+rr5QdCAqDw9LgC6rQMhY3HW5 BLPuN9v5ihpix8lKgy1n16qzAMhl3Sk2LQ57SU3GAYLKzA7Lqlf3w0W6Bna46IJZY7kH JrKi0h27rmmj7mqjz3/4YTOKWcPgMLuoZrbSTa3cqvFSGQXEAyFadbT+MpPMbwh7EPeh qWsD/eKi49Sqng+g5jb8xidnjj2FyBe3ZyD8qitnPheGUzUxSYKTlhrpNyPZCkC0TNBl c+8NSM6GLJL5ce/3wEz7uvRTdeC0XckZWSJq6JGlURvgNh2eULPxkia+tbqzPNRx6j8g MM5g== 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=yMTAZuDW2H2M7nToM7//9afS1Om7U60tJgUi/NDXyhk=; b=We/sNj+xNApQiTi9R15HnkIXtcoX9WRzgCvwrD/QpLVxUJ1B2gIs4PIVVwvfr2jqHd w1GX4FNq6PPTuFbDgVZ2viaXk3Du3ltgNDpx2aygcFUBEThy3+6AZ9/kVkEeWqOUtBwJ rL5LrR75MNi9HB1Qxk8SOt4au1Z+SvLLzooi/EjcuJMy7GDNTKFrFuRqSu8926ZkxY3c c+LUhIzM1jFfztk/CE+y1+5N+0zE87OzgblXh+AZgtllCnV9r5nbJMNP6IxR2eW6QVjJ dpQzXFrLujvt8VHa+4YFAbRkOe9iv8etBizFKnFr5HH/C8l95Ai0JgAPR2MdJ1VkJnmg KKAQ== X-Gm-Message-State: AOAM5307l9PjClB0s2zztDElGlhQ1nFe7y/TY4j64/AC88B8yDflQKlv 1Ame67rvRdZ5JulYZmQNPTBHsWU+hL4= X-Google-Smtp-Source: ABdhPJxAWh/xCro/C+deBY3uE/99UF1tgBDVHs5MVao/LVDYREorBoBERt/h6qVmX774HxxnmcLhbw== X-Received: by 2002:a05:6a00:b51:b029:2d5:874a:6bd7 with SMTP id p17-20020a056a000b51b02902d5874a6bd7mr22924704pfo.6.1622565460324; Tue, 01 Jun 2021 09:37:40 -0700 (PDT) Received: from localhost ([47.251.4.198]) by smtp.gmail.com with ESMTPSA id d18sm14800160pgm.93.2021.06.01.09.37.39 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Tue, 01 Jun 2021 09:37:39 -0700 (PDT) From: Lai Jiangshan To: linux-kernel@vger.kernel.org Cc: Steven Rostedt , Lai Jiangshan , Andy Lutomirski , Thomas Gleixner , Ingo Molnar , Borislav Petkov , x86@kernel.org, "H. Peter Anvin" Subject: [RFC PATCH 3/4] x86/entry: Remove parameter rdx from macro PUSH_AND_CLEAR_REGS and PUSH_REGS Date: Tue, 1 Jun 2021 14:52:16 +0800 Message-Id: <20210601065217.23540-4-jiangshanlai@gmail.com> X-Mailer: git-send-email 2.19.1.6.gb485710b In-Reply-To: <20210601065217.23540-1-jiangshanlai@gmail.com> References: <20210601065217.23540-1-jiangshanlai@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Lai Jiangshan There is no caller using parameter rdx. Signed-off-by: Lai Jiangshan --- arch/x86/entry/calling.h | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/x86/entry/calling.h b/arch/x86/entry/calling.h index a4c061fb7c6e..d63fcc09e722 100644 --- a/arch/x86/entry/calling.h +++ b/arch/x86/entry/calling.h @@ -63,7 +63,7 @@ For 32-bit we have the following conventions - kernel is built with * for assembly code: */ -.macro PUSH_REGS rdx=%rdx rax=%rax save_ret=0 +.macro PUSH_REGS rax=%rax save_ret=0 .if \save_ret pushq %rsi /* pt_regs->si */ movq 8(%rsp), %rsi /* temporarily store the return address in %rsi */ @@ -72,7 +72,7 @@ For 32-bit we have the following conventions - kernel is built with pushq %rdi /* pt_regs->di */ pushq %rsi /* pt_regs->si */ .endif - pushq \rdx /* pt_regs->dx */ + pushq %rdx /* pt_regs->dx */ pushq %rcx /* pt_regs->cx */ pushq \rax /* pt_regs->ax */ pushq %r8 /* pt_regs->r8 */ @@ -114,8 +114,8 @@ For 32-bit we have the following conventions - kernel is built with .endm -.macro PUSH_AND_CLEAR_REGS rdx=%rdx rax=%rax save_ret=0 - PUSH_REGS rdx=\rdx, rax=\rax, save_ret=\save_ret +.macro PUSH_AND_CLEAR_REGS rax=%rax save_ret=0 + PUSH_REGS rax=\rax, save_ret=\save_ret CLEAR_REGS .endm -- 2.19.1.6.gb485710b