[PATCH v2] ontext_tracking: fix !CONFIG_KVM compile: add stub guestenter/exit

[Kevin Hilman]

When KVM is not enabled, or not available on a platform, the KVM
headers should not be included.  Instead, just define stub
__guest_[enter|exit] functions.

Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Signed-off-by: Kevin Hilman <khilman@xxxxxxxxxx>
---
 include/linux/context_tracking.h | 7 +++++++
 kernel/context_tracking.c        | 1 -
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/include/linux/context_tracking.h b/include/linux/context_tracking.h
index 365f4a6..9d0f242 100644
--- a/include/linux/context_tracking.h
+++ b/include/linux/context_tracking.h
@@ -3,6 +3,13 @@
 
 #include <linux/sched.h>
 #include <linux/percpu.h>
+#if IS_ENABLED(CONFIG_KVM)
+#include <linux/kvm_host.h>
+#else
+#define __guest_enter()
+#define __guest_exit()
+#endif
+
 #include <asm/ptrace.h>
 
 struct context_tracking {
diff --git a/kernel/context_tracking.c b/kernel/context_tracking.c
index 65349f0..85bdde1 100644
--- a/kernel/context_tracking.c
+++ b/kernel/context_tracking.c
@@ -15,7 +15,6 @@
  */
 
 #include <linux/context_tracking.h>
-#include <linux/kvm_host.h>
 #include <linux/rcupdate.h>
 #include <linux/sched.h>
 #include <linux/hardirq.h>
-- 
1.8.2

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