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[PATCH trace-cmd] kvm: don't warn on new fields

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The kvm plugin understands a few new fields; don't warn if they are missing,
as expected on older kernels.

Signed-off-by: Avi Kivity <avi@xxxxxxxxxx>
---
 plugin_kvm.c |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/plugin_kvm.c b/plugin_kvm.c
index c1cb2e4..8115235 100644
--- a/plugin_kvm.c
+++ b/plugin_kvm.c
@@ -249,15 +249,15 @@ static int kvm_exit_handler(struct trace_seq *s, struct record *record,
 	if (pevent_get_field_val(s, event, "exit_reason", record, &val, 1) < 0)
 		return -1;
 
-	if (pevent_get_field_val(s, event, "isa", record, &isa, 1) < 0)
+	if (pevent_get_field_val(s, event, "isa", record, &isa, 0) < 0)
 		isa = 1;
 
 	trace_seq_printf(s, "reason %s", find_exit_reason(isa, val));
 
 	pevent_print_num_field(s, " rip 0x%lx", event, "guest_rip", record, 1);
 
-	if (pevent_get_field_val(s, event, "info1", record, &info1, 1) >= 0
-	    && pevent_get_field_val(s, event, "info2", record, &info2, 1) >= 0)
+	if (pevent_get_field_val(s, event, "info1", record, &info1, 0) >= 0
+	    && pevent_get_field_val(s, event, "info2", record, &info2, 0) >= 0)
 		trace_seq_printf(s, " info %llx %llx\n", info1, info2);
 
 	return 0;
-- 
1.7.1

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