linux-kernel - [PATCH] KVM: x86/mmu: Drop "struct kvm_mmu *mmu" from __kvm_mmu_invalidate

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Date:   Fri, 19 May 2023 16:17:11 +0800
From:   Like Xu <like.xu.linux@...il.com>
To:     Sean Christopherson <seanjc@...gle.com>
Cc:     Paolo Bonzini <pbonzini@...hat.com>, kvm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] KVM: x86/mmu: Drop "struct kvm_mmu *mmu" from __kvm_mmu_invalidate_addr()

From: Like Xu <likexu@...cent.com>

Remove incoming parameter "struct kvm_mmu *mmu" that are no longer used.
Whether the func is using "vcpu->arch.root_mmu" or "vcpu->arch.guest_mmu",
it can be referenced as expected via "vcpu->arch.mmu". Thus the "*mmu"
is replaced by the use of "vcpu->arch.mmu" in commit 19ace7d6ca15 ("KVM:
x86/mmu: Skip calling mmu->sync_spte() when the spte is 0").

No functional change is intended.

Signed-off-by: Like Xu <likexu@...cent.com>
---
 arch/x86/kvm/mmu/mmu.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c
index c8961f45e3b1..160c40c83330 100644
--- a/arch/x86/kvm/mmu/mmu.c
+++ b/arch/x86/kvm/mmu/mmu.c
@@ -5790,8 +5790,8 @@ int noinline kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gpa_t cr2_or_gpa, u64 err
 }
 EXPORT_SYMBOL_GPL(kvm_mmu_page_fault);
 
-static void __kvm_mmu_invalidate_addr(struct kvm_vcpu *vcpu, struct kvm_mmu *mmu,
-				      u64 addr, hpa_t root_hpa)
+static void __kvm_mmu_invalidate_addr(struct kvm_vcpu *vcpu, u64 addr,
+				      hpa_t root_hpa)
 {
 	struct kvm_shadow_walk_iterator iterator;
 
@@ -5839,11 +5839,11 @@ void kvm_mmu_invalidate_addr(struct kvm_vcpu *vcpu, struct kvm_mmu *mmu,
 		return;
 
 	if (roots & KVM_MMU_ROOT_CURRENT)
-		__kvm_mmu_invalidate_addr(vcpu, mmu, addr, mmu->root.hpa);
+		__kvm_mmu_invalidate_addr(vcpu, addr, mmu->root.hpa);
 
 	for (i = 0; i < KVM_MMU_NUM_PREV_ROOTS; i++) {
 		if (roots & KVM_MMU_ROOT_PREVIOUS(i))
-			__kvm_mmu_invalidate_addr(vcpu, mmu, addr, mmu->prev_roots[i].hpa);
+			__kvm_mmu_invalidate_addr(vcpu, addr, mmu->prev_roots[i].hpa);
 	}
 }
 EXPORT_SYMBOL_GPL(kvm_mmu_invalidate_addr);

base-commit: f1fcbaa18b28dec10281551dfe6ed3a3ed80e3d6
-- 
2.40.1