[PATCH 01/26] vfio: Wrap KVM helpers with CONFIG_KVM instead of CONFIG_HAVE_KVM

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Wrap the helpers for getting references to KVM instances with a check on
CONFIG_KVM being enabled, not on CONFIG_HAVE_KVM being defined.  PPC does
NOT select HAVE_KVM, despite obviously supporting KVM, and guarding code
to get references to KVM based on whether or not the architecture supports
KVM is nonsensical.

Drop the guard around linux/kvm_host.h entirely, conditionally including a
generic headers is completely unnecessary.

Signed-off-by: Sean Christopherson <seanjc@xxxxxxxxxx>
---
 drivers/vfio/vfio.h      | 2 +-
 drivers/vfio/vfio_main.c | 4 +---
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/vfio/vfio.h b/drivers/vfio/vfio.h
index 307e3f29b527..c26d1ad68105 100644
--- a/drivers/vfio/vfio.h
+++ b/drivers/vfio/vfio.h
@@ -434,7 +434,7 @@ static inline void vfio_virqfd_exit(void)
 }
 #endif
 
-#ifdef CONFIG_HAVE_KVM
+#if IS_ENABLED(CONFIG_KVM)
 void vfio_device_get_kvm_safe(struct vfio_device *device, struct kvm *kvm);
 void vfio_device_put_kvm(struct vfio_device *device);
 #else
diff --git a/drivers/vfio/vfio_main.c b/drivers/vfio/vfio_main.c
index 40732e8ed4c6..80e39f7a6d8f 100644
--- a/drivers/vfio/vfio_main.c
+++ b/drivers/vfio/vfio_main.c
@@ -16,9 +16,7 @@
 #include <linux/fs.h>
 #include <linux/idr.h>
 #include <linux/iommu.h>
-#ifdef CONFIG_HAVE_KVM
 #include <linux/kvm_host.h>
-#endif
 #include <linux/list.h>
 #include <linux/miscdevice.h>
 #include <linux/module.h>
@@ -383,7 +381,7 @@ void vfio_unregister_group_dev(struct vfio_device *device)
 }
 EXPORT_SYMBOL_GPL(vfio_unregister_group_dev);
 
-#ifdef CONFIG_HAVE_KVM
+#if IS_ENABLED(CONFIG_KVM)
 void vfio_device_get_kvm_safe(struct vfio_device *device, struct kvm *kvm)
 {
 	void (*pfn)(struct kvm *kvm);
-- 
2.42.0.459.ge4e396fd5e-goog




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