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Date: Fri, 19 Aug 2022 10:28:04 +0800 From: Li kunyu <kunyu@...china.com> To: kunyu@...china.com, seanjc@...gle.com Cc: pbonzini@...hat.com, kvm@...r.kernel.org, linux-kernel@...r.kernel.org Subject: [PATCH v2] KVM: Drop unnecessary initialization of "npages" in hva_to_pfn_slow() initialized and assigned, it is used after assignment Used to reduce a mov instruction. Reviewed-by: Sean Christopherson <seanjc@...gle.com> Signed-off-by: Li kunyu <kunyu@...china.com> v2: Change patch title. --- virt/kvm/kvm_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 82f2b90718a9..f047799bf19b 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -2516,7 +2516,7 @@ static int hva_to_pfn_slow(unsigned long addr, bool *async, bool write_fault, { unsigned int flags = FOLL_HWPOISON; struct page *page; - int npages = 0; + int npages; might_sleep(); -- 2.18.2
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