linux-kernel - [PATCH v2] KVM: arm64: Remove unused vcpu_{clear,set}_wfx

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Message-ID: <20260109080226.761107-1-sundongxu1024@163.com>
Date: Fri,  9 Jan 2026 16:02:26 +0800
From: Dongxu Sun <sundongxu1024@....com>
To: maz@...nel.org,
	oupton@...nel.org,
	yuzenghui@...wei.com
Cc: joey.gouly@....com,
	suzuki.poulose@....com,
	catalin.marinas@....com,
	will@...nel.org,
	linux-arm-kernel@...ts.infradead.org,
	kvmarm@...ts.linux.dev,
	linux-kernel@...r.kernel.org,
	sundongxu1024@....com
Subject: [PATCH v2] KVM: arm64: Remove unused vcpu_{clear,set}_wfx_traps()

Function vcpu_{clear,set}_wfx_traps() are unused since
commit 0b5afe05377d7 ("KVM: arm64: Add early_param to
control WFx trapping").
Remove it.

Reviewed-by: Zenghui Yu <yuzenghui@...wei.com>
Signed-off-by: Dongxu Sun <sundongxu1024@....com>
---
v2 -> v1: Update subject and commit message.
v1: https://lore.kernel.org/all/20260109025837.754242-1-sundongxu1024@163.com

 arch/arm64/include/asm/kvm_emulate.h | 16 ----------------
 1 file changed, 16 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_emulate.h b/arch/arm64/include/asm/kvm_emulate.h
index c9eab316398e..55d34192a8de 100644
--- a/arch/arm64/include/asm/kvm_emulate.h
+++ b/arch/arm64/include/asm/kvm_emulate.h
@@ -119,22 +119,6 @@ static inline unsigned long *vcpu_hcr(struct kvm_vcpu *vcpu)
 	return (unsigned long *)&vcpu->arch.hcr_el2;
 }
 
-static inline void vcpu_clear_wfx_traps(struct kvm_vcpu *vcpu)
-{
-	vcpu->arch.hcr_el2 &= ~HCR_TWE;
-	if (atomic_read(&vcpu->arch.vgic_cpu.vgic_v3.its_vpe.vlpi_count) ||
-	    vcpu->kvm->arch.vgic.nassgireq)
-		vcpu->arch.hcr_el2 &= ~HCR_TWI;
-	else
-		vcpu->arch.hcr_el2 |= HCR_TWI;
-}
-
-static inline void vcpu_set_wfx_traps(struct kvm_vcpu *vcpu)
-{
-	vcpu->arch.hcr_el2 |= HCR_TWE;
-	vcpu->arch.hcr_el2 |= HCR_TWI;
-}
-
 static inline unsigned long vcpu_get_vsesr(struct kvm_vcpu *vcpu)
 {
 	return vcpu->arch.vsesr_el2;
-- 
2.43.0