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([2001:b07:6468:f312:c8dd:75d4:99ab:290a]) by smtp.googlemail.com with ESMTPSA id j6sm1408169eje.158.2022.02.24.06.24.52 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 24 Feb 2022 06:24:54 -0800 (PST) Sender: Paolo Bonzini Message-ID: Date: Thu, 24 Feb 2022 15:24:50 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.5.0 Subject: Re: [PATCH v2] KVM:VMX:Remove scratch 'cpu' variable that shadows an identical scratch var Content-Language: en-US To: Peng Hao , seanjc@google.com Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org References: <20220222103954.70062-1-flyingpeng@tencent.com> From: Paolo Bonzini In-Reply-To: <20220222103954.70062-1-flyingpeng@tencent.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=-1.5 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_EF,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,NICE_REPLY_A,RCVD_IN_DNSWL_NONE, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2/22/22 11:39, Peng Hao wrote: > From: Peng Hao > > Remove a redundant 'cpu' declaration from inside an if-statement that > that shadows an identical declaration at function scope. Both variables > are used as scratch variables in for_each_*_cpu() loops, thus there's no > harm in sharing a variable. > > Reviewed-by: Sean Christopherson > Signed-off-by: Peng Hao > --- > arch/x86/kvm/vmx/vmx.c | 1 - > 1 file changed, 1 deletion(-) > > diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c > index ba66c171d951..6101c2980a9c 100644 > --- a/arch/x86/kvm/vmx/vmx.c > +++ b/arch/x86/kvm/vmx/vmx.c > @@ -7931,7 +7931,6 @@ static int __init vmx_init(void) > ms_hyperv.hints & HV_X64_ENLIGHTENED_VMCS_RECOMMENDED && > (ms_hyperv.nested_features & HV_X64_ENLIGHTENED_VMCS_VERSION) >= > KVM_EVMCS_VERSION) { > - int cpu; > > /* Check that we have assist pages on all online CPUs */ > for_each_online_cpu(cpu) { Queued, thanks. Paolo