linux-kernel - [PATCH 17/61] KVM: x86: Drop redundant array size check

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Date:   Sat,  1 Feb 2020 10:51:34 -0800
From:   Sean Christopherson <sean.j.christopherson@...el.com>
To:     Paolo Bonzini <pbonzini@...hat.com>
Cc:     Sean Christopherson <sean.j.christopherson@...el.com>,
        Vitaly Kuznetsov <vkuznets@...hat.com>,
        Wanpeng Li <wanpengli@...cent.com>,
        Jim Mattson <jmattson@...gle.com>,
        Joerg Roedel <joro@...tes.org>, kvm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 17/61] KVM: x86: Drop redundant array size check

Drop a "nent >= maxnent" check in kvm_get_cpuid() that's fully redundant
now that kvm_get_cpuid() isn't indexing the array to pass an entry to
do_cpuid_func().

Signed-off-by: Sean Christopherson <sean.j.christopherson@...el.com>
---
 arch/x86/kvm/cpuid.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
index f9cfc69199f0..6516fec361c1 100644
--- a/arch/x86/kvm/cpuid.c
+++ b/arch/x86/kvm/cpuid.c
@@ -844,9 +844,6 @@ static int get_cpuid_func(struct kvm_cpuid_array *array, u32 func,
 
 	limit = array->entries[array->nent - 1].eax;
 	for (func = func + 1; func <= limit; ++func) {
-		if (array->nent >= array->maxnent)
-			return -E2BIG;
-
 		r = do_cpuid_func(array, func, type);
 		if (r)
 			break;
-- 
2.24.1