linux-kernel - [PATCH] kvm: delete unused variables iommu_noncoherent in struct kvm

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Message-ID: <20250206022656.3752383-1-fuqiang.wng@gmail.com>
Date: Thu,  6 Feb 2025 10:26:56 +0800
From: fuqiang wang <fuqiang.wng@...il.com>
To: Sean Christopherson <seanjc@...gle.com>,
	Paolo Bonzini <pbonzini@...hat.com>
Cc: kvm@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	wangfuqiang49 <wangfuqiang49@...com>
Subject: [PATCH] kvm: delete unused variables iommu_noncoherent in struct kvm_arch

The code of legacy device assignment is deleted entirely in commit
ad6260da1e23 ("KVM: x86: drop legacy device assignment") and the
variable iommu_noncoherent in struct kvm_arch is also not referenced by
any other code. So it is deleted in this patch.

Signed-off-by: wangfuqiang49 <wangfuqiang49@...com>
---
 arch/x86/include/asm/kvm_host.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index b15cde0a9b5c..98555afb6f10 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -1354,7 +1354,6 @@ struct kvm_arch {
 	u64 shadow_mmio_value;
 
 	struct iommu_domain *iommu_domain;
-	bool iommu_noncoherent;
 #define __KVM_HAVE_ARCH_NONCOHERENT_DMA
 	atomic_t noncoherent_dma_count;
 #define __KVM_HAVE_ARCH_ASSIGNED_DEVICE
-- 
2.47.0