From patchwork Wed Jul 31 18:55:56 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 11069109 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 4AFB813AC for ; Wed, 31 Jul 2019 18:56:10 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2F5A026CFC for ; Wed, 31 Jul 2019 18:56:10 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 2355A26E3D; Wed, 31 Jul 2019 18:56:10 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id AA65726CFC for ; Wed, 31 Jul 2019 18:56:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730616AbfGaS4A (ORCPT ); Wed, 31 Jul 2019 14:56:00 -0400 Received: from mail.kernel.org ([198.145.29.99]:55108 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730373AbfGaS4A (ORCPT ); Wed, 31 Jul 2019 14:56:00 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id B1D2F206A2; Wed, 31 Jul 2019 18:55:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1564599359; bh=PDZTaahLi5kNA//H1J256ixuWFOspp8vVvyZEl42Tck=; h=Date:From:To:Cc:Subject:From; b=k9Nkw8SsGExyRYJS3Oi123MRSYnyHm8voniX5T4u0GMTgAaATttDL8KApYyK/3/Fx Y7vatCjQ6dAL3zsolVdeFJj4mbxuSDI4yEd2p1pSfKYJuerjlqdYsJz2R9s7DqmVf9 6mqT5BmDt4vIl0Q2rSO+Rp2QzDzGV+Q7oYP2XIX4= Date: Wed, 31 Jul 2019 20:55:56 +0200 From: Greg KH To: Paolo Bonzini , Radim Krm , kvm@vger.kernel.org Cc: Thomas Gleixner , Ingo Molnar , Borislav Petkov , "H. Peter Anvin" , x86@kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 1/2] KVM: remove kvm_arch_has_vcpu_debugfs() Message-ID: <20190731185556.GA703@kroah.com> MIME-Version: 1.0 Content-Disposition: inline User-Agent: Mutt/1.12.1 (2019-06-15) Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP There is no need for this function as all arches have to implement kvm_arch_create_vcpu_debugfs() no matter what, so just remove this call as it is pointless. Cc: Paolo Bonzini Cc: "Radim Krm" Cc: Thomas Gleixner Cc: Ingo Molnar Cc: Borislav Petkov Cc: "H. Peter Anvin" Cc: Cc: Signed-off-by: Greg Kroah-Hartman Signed-off-by: Paolo Bonzini --- v2: new patch in the series arch/mips/kvm/mips.c | 5 ----- arch/powerpc/kvm/powerpc.c | 5 ----- arch/s390/kvm/kvm-s390.c | 5 ----- arch/x86/kvm/debugfs.c | 5 ----- include/linux/kvm_host.h | 1 - virt/kvm/arm/arm.c | 5 ----- virt/kvm/kvm_main.c | 3 --- 7 files changed, 29 deletions(-) diff --git a/arch/mips/kvm/mips.c b/arch/mips/kvm/mips.c index 2cfe839f0b3a..948ef36ca87c 100644 --- a/arch/mips/kvm/mips.c +++ b/arch/mips/kvm/mips.c @@ -150,11 +150,6 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type) return 0; } -bool kvm_arch_has_vcpu_debugfs(void) -{ - return false; -} - int kvm_arch_create_vcpu_debugfs(struct kvm_vcpu *vcpu) { return 0; diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c index 0dba7eb24f92..78d166672492 100644 --- a/arch/powerpc/kvm/powerpc.c +++ b/arch/powerpc/kvm/powerpc.c @@ -452,11 +452,6 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type) return -EINVAL; } -bool kvm_arch_has_vcpu_debugfs(void) -{ - return false; -} - int kvm_arch_create_vcpu_debugfs(struct kvm_vcpu *vcpu) { return 0; diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index 3f520cd837fb..4dd49bda8d25 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -2516,11 +2516,6 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type) return rc; } -bool kvm_arch_has_vcpu_debugfs(void) -{ - return false; -} - int kvm_arch_create_vcpu_debugfs(struct kvm_vcpu *vcpu) { return 0; diff --git a/arch/x86/kvm/debugfs.c b/arch/x86/kvm/debugfs.c index 329361b69d5e..9bd93e0d5f63 100644 --- a/arch/x86/kvm/debugfs.c +++ b/arch/x86/kvm/debugfs.c @@ -8,11 +8,6 @@ #include #include "lapic.h" -bool kvm_arch_has_vcpu_debugfs(void) -{ - return true; -} - static int vcpu_get_timer_advance_ns(void *data, u64 *val) { struct kvm_vcpu *vcpu = (struct kvm_vcpu *) data; diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 5c5b5867024c..52596a27ab27 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -861,7 +861,6 @@ int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu); void kvm_arch_vcpu_postcreate(struct kvm_vcpu *vcpu); void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu); -bool kvm_arch_has_vcpu_debugfs(void); int kvm_arch_create_vcpu_debugfs(struct kvm_vcpu *vcpu); int kvm_arch_hardware_enable(void); diff --git a/virt/kvm/arm/arm.c b/virt/kvm/arm/arm.c index f645c0fbf7ec..cc85259a243d 100644 --- a/virt/kvm/arm/arm.c +++ b/virt/kvm/arm/arm.c @@ -144,11 +144,6 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type) return ret; } -bool kvm_arch_has_vcpu_debugfs(void) -{ - return false; -} - int kvm_arch_create_vcpu_debugfs(struct kvm_vcpu *vcpu) { return 0; diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 887f3b0c2b60..ac0a2f6a50a4 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -2596,9 +2596,6 @@ static int kvm_create_vcpu_debugfs(struct kvm_vcpu *vcpu) char dir_name[ITOA_MAX_LEN * 2]; int ret; - if (!kvm_arch_has_vcpu_debugfs()) - return 0; - if (!debugfs_initialized()) return 0;