linux-kernel - [PATCH v3 03/21] KVM: Remove kvm_read_guest

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Date:   Thu,  9 Jan 2020 09:57:11 -0500
From:   Peter Xu <peterx@...hat.com>
To:     kvm@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Christophe de Dinechin <dinechin@...hat.com>,
        "Michael S . Tsirkin" <mst@...hat.com>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Sean Christopherson <sean.j.christopherson@...el.com>,
        Yan Zhao <yan.y.zhao@...el.com>,
        Alex Williamson <alex.williamson@...hat.com>,
        Jason Wang <jasowang@...hat.com>,
        Kevin Kevin <kevin.tian@...el.com>,
        Vitaly Kuznetsov <vkuznets@...hat.com>, peterx@...hat.com,
        "Dr . David Alan Gilbert" <dgilbert@...hat.com>
Subject: [PATCH v3 03/21] KVM: Remove kvm_read_guest_atomic()

Remove kvm_read_guest_atomic() because it's not used anywhere.

Signed-off-by: Peter Xu <peterx@...hat.com>
---
 include/linux/kvm_host.h |  2 --
 virt/kvm/kvm_main.c      | 11 -----------
 2 files changed, 13 deletions(-)

diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 528ab7a814ab..2337f9b6112c 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -725,8 +725,6 @@ void kvm_get_pfn(kvm_pfn_t pfn);
 
 int kvm_read_guest_page(struct kvm *kvm, gfn_t gfn, void *data, int offset,
 			int len);
-int kvm_read_guest_atomic(struct kvm *kvm, gpa_t gpa, void *data,
-			  unsigned long len);
 int kvm_read_guest(struct kvm *kvm, gpa_t gpa, void *data, unsigned long len);
 int kvm_read_guest_cached(struct kvm *kvm, struct gfn_to_hva_cache *ghc,
 			   void *data, unsigned long len);
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 3aa21bec028d..24c9cf4c8a52 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -2048,17 +2048,6 @@ static int __kvm_read_guest_atomic(struct kvm_memory_slot *slot, gfn_t gfn,
 	return 0;
 }
 
-int kvm_read_guest_atomic(struct kvm *kvm, gpa_t gpa, void *data,
-			  unsigned long len)
-{
-	gfn_t gfn = gpa >> PAGE_SHIFT;
-	struct kvm_memory_slot *slot = gfn_to_memslot(kvm, gfn);
-	int offset = offset_in_page(gpa);
-
-	return __kvm_read_guest_atomic(slot, gfn, data, offset, len);
-}
-EXPORT_SYMBOL_GPL(kvm_read_guest_atomic);
-
 int kvm_vcpu_read_guest_atomic(struct kvm_vcpu *vcpu, gpa_t gpa,
 			       void *data, unsigned long len)
 {
-- 
2.24.1