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=-9.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,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 5C4D0CA9EA0 for ; Fri, 25 Oct 2019 10:54:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3C3A121929 for ; Fri, 25 Oct 2019 10:54:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2502744AbfJYKyS (ORCPT ); Fri, 25 Oct 2019 06:54:18 -0400 Received: from szxga04-in.huawei.com ([45.249.212.190]:5186 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S2502594AbfJYKyR (ORCPT ); Fri, 25 Oct 2019 06:54:17 -0400 Received: from DGGEMS407-HUB.china.huawei.com (unknown [172.30.72.59]) by Forcepoint Email with ESMTP id 8D4AF84C3F8D4F971006; Fri, 25 Oct 2019 18:54:14 +0800 (CST) Received: from huawei.com (10.175.105.18) by DGGEMS407-HUB.china.huawei.com (10.3.19.207) with Microsoft SMTP Server id 14.3.439.0; Fri, 25 Oct 2019 18:54:07 +0800 From: Miaohe Lin To: , , , , , , , , , , CC: , , , Subject: [PATCH v2] KVM: x86: get rid of odd out jump label in pdptrs_changed Date: Fri, 25 Oct 2019 18:54:34 +0800 Message-ID: <1572000874-28259-1-git-send-email-linmiaohe@huawei.com> X-Mailer: git-send-email 1.8.3.1 MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.175.105.18] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The odd out jump label is really not needed. Get rid of it by return true directly while r < 0 as suggested by Paolo. This further lead to var changed being unused. Remove it too. Signed-off-by: Miaohe Lin --- arch/x86/kvm/x86.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index ff395f812719..8b0d594a3b90 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -721,7 +721,6 @@ EXPORT_SYMBOL_GPL(load_pdptrs); bool pdptrs_changed(struct kvm_vcpu *vcpu) { u64 pdpte[ARRAY_SIZE(vcpu->arch.walk_mmu->pdptrs)]; - bool changed = true; int offset; gfn_t gfn; int r; @@ -738,11 +737,9 @@ bool pdptrs_changed(struct kvm_vcpu *vcpu) r = kvm_read_nested_guest_page(vcpu, gfn, pdpte, offset, sizeof(pdpte), PFERR_USER_MASK | PFERR_WRITE_MASK); if (r < 0) - goto out; - changed = memcmp(pdpte, vcpu->arch.walk_mmu->pdptrs, sizeof(pdpte)) != 0; -out: + return true; - return changed; + return memcmp(pdpte, vcpu->arch.walk_mmu->pdptrs, sizeof(pdpte)) != 0; } EXPORT_SYMBOL_GPL(pdptrs_changed); -- 2.19.1