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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8DC9DC433FE for ; Wed, 5 Oct 2022 11:34:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230096AbiJELe2 (ORCPT ); Wed, 5 Oct 2022 07:34:28 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36368 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229832AbiJELdo (ORCPT ); Wed, 5 Oct 2022 07:33:44 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BDE577756C; Wed, 5 Oct 2022 04:33:34 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 9D5F461644; Wed, 5 Oct 2022 11:33:32 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id AD88BC433D6; Wed, 5 Oct 2022 11:33:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1664969612; bh=Pk6Suo2T1eUyONR7+gvbv9SwmbnhbztlxPqRFvQ9FHE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=UOtrO7tURoxB0qpqOrmSyoeSp9b3ROI1o8x4iJnaDMKBBA9HDOLBP12VRvfyL09tu QvWChyjJ2OxQzQl6L5EBpVuYPBfjw6aAtTotUrNX7GyQ7sQzSkn1lI8ML3w6f7FUjO 1J2tK6YOGFUTcuWD4+eboa8ElgcWODFiYV5aGVHc= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Greg Kroah-Hartman , Paolo Bonzini , Sean Christopherson , Uros Bizjak , Thadeu Lima de Souza Cascardo Subject: [PATCH 5.4 24/51] KVM/VMX: Use TEST %REG,%REG instead of CMP $0,%REG in vmenter.S Date: Wed, 5 Oct 2022 13:32:12 +0200 Message-Id: <20221005113211.383989348@linuxfoundation.org> X-Mailer: git-send-email 2.38.0 In-Reply-To: <20221005113210.255710920@linuxfoundation.org> References: <20221005113210.255710920@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Uros Bizjak commit 6c44221b05236cc65d76cb5dc2463f738edff39d upstream. Saves one byte in __vmx_vcpu_run for the same functionality. Cc: Paolo Bonzini Cc: Sean Christopherson Signed-off-by: Uros Bizjak Message-Id: <20201029140457.126965-1-ubizjak@gmail.com> Signed-off-by: Paolo Bonzini Signed-off-by: Thadeu Lima de Souza Cascardo Signed-off-by: Greg Kroah-Hartman --- arch/x86/kvm/vmx/vmenter.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/arch/x86/kvm/vmx/vmenter.S +++ b/arch/x86/kvm/vmx/vmenter.S @@ -135,7 +135,7 @@ ENTRY(__vmx_vcpu_run) mov (%_ASM_SP), %_ASM_AX /* Check if vmlaunch or vmresume is needed */ - cmpb $0, %bl + testb %bl, %bl /* Load guest registers. Don't clobber flags. */ mov VCPU_RBX(%_ASM_AX), %_ASM_BX