linux-kernel - [PATCH] x86/kvm/mmu: Remove unnecessary ‘NULL’ values from sptep

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Date:   Sun,  3 Sep 2023 01:54:31 +0800
From:   Li zeming <zeming@...china.com>
To:     seanjc@...gle.com, pbonzini@...hat.com, tglx@...utronix.de,
        mingo@...hat.com, bp@...en8.de, dave.hansen@...ux.intel.com
Cc:     x86@...nel.org, kvm@...r.kernel.org, linux-kernel@...r.kernel.org,
        Li zeming <zeming@...china.com>
Subject: [PATCH] x86/kvm/mmu: Remove unnecessary ‘NULL’ values from sptep

sptep is assigned first, so it does not need to initialize the assignment.

Signed-off-by: Li zeming <zeming@...china.com>
---
 arch/x86/kvm/mmu/mmu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c
index ec169f5c7dce..95f745aec4aa 100644
--- a/arch/x86/kvm/mmu/mmu.c
+++ b/arch/x86/kvm/mmu/mmu.c
@@ -3457,7 +3457,7 @@ static int fast_page_fault(struct kvm_vcpu *vcpu, struct kvm_page_fault *fault)
 	struct kvm_mmu_page *sp;
 	int ret = RET_PF_INVALID;
 	u64 spte = 0ull;
-	u64 *sptep = NULL;
+	u64 *sptep;
 	uint retry_count = 0;
 
 	if (!page_fault_can_be_fast(fault))
-- 
2.18.2