[PATCH 03/26] virt: Declare and define vfio_file_set_kvm() iff CONFIG_KVM is enabled

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Hide vfio_file_set_kvm() and its unique helpers if KVM is not enabled,
nothing else in the kernel (or out of the kernel) should be using a
KVM specific helper.

Signed-off-by: Sean Christopherson <seanjc@xxxxxxxxxx>
 drivers/vfio/vfio_main.c | 2 +-
 include/linux/vfio.h     | 2 ++
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/vfio/vfio_main.c b/drivers/vfio/vfio_main.c
index 6368eed7b7b2..124cc88966a7 100644
--- a/drivers/vfio/vfio_main.c
+++ b/drivers/vfio/vfio_main.c
@@ -1352,7 +1352,6 @@ void vfio_device_put_kvm(struct vfio_device *device)
 	device->kvm = NULL;
 static void vfio_device_file_set_kvm(struct file *file, struct kvm *kvm)
@@ -1388,6 +1387,7 @@ void vfio_file_set_kvm(struct file *file, struct kvm *kvm)
 		vfio_device_file_set_kvm(file, kvm);
  * Sub-module support
diff --git a/include/linux/vfio.h b/include/linux/vfio.h
index 454e9295970c..e80955de266c 100644
--- a/include/linux/vfio.h
+++ b/include/linux/vfio.h
@@ -311,7 +311,9 @@ static inline bool vfio_file_has_dev(struct file *file, struct vfio_device *devi
 bool vfio_file_is_valid(struct file *file);
 bool vfio_file_enforced_coherent(struct file *file);
 void vfio_file_set_kvm(struct file *file, struct kvm *kvm);
 #define VFIO_PIN_PAGES_MAX_ENTRIES	(PAGE_SIZE/sizeof(unsigned long))

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