KVM: x86: fix incorrect comparison in trace event

The "u" field in the event has three states, -1/0/1.  Using u8 however means that
comparison with -1 will always fail, so change to signed char.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/arch/x86/kvm/mmutrace.h b/arch/x86/kvm/mmutrace.h
index 3c6522b..ffcd96f 100644 (file)
--- a/arch/x86/kvm/mmutrace.h
+++ b/arch/x86/kvm/mmutrace.h
@@ -339,7 +339,7 @@ TRACE_EVENT(
                /* These depend on page entry type, so compute them now.  */
                __field(bool, r)
                __field(bool, x)
-               __field(u8, u)
+               __field(signed char, u)
        ),
 
        TP_fast_assign(