From 76690945f59e2f329f148e1266d9d13800629463 Mon Sep 17 00:00:00 2001 From: Tom Zanussi Date: Wed, 28 Mar 2018 15:10:54 -0500 Subject: [PATCH] tracing: Don't add flag strings when displaying variable references Variable references should never have flags appended when displayed - prevent that from happening. Before: # cat /sys/kernel/debug/tracing/events/sched/sched_switch/trigger hist:keys=next_pid:vals=hitcount:wakeup_lat=common_timestamp.usecs-$ts0.usecs:... After: hist:keys=next_pid:vals=hitcount:wakeup_lat=common_timestamp.usecs-$ts0:... Link: http://lkml.kernel.org/r/913318a5610ef6b24af2522575f671fa6ee19b6b.1522256721.git.tom.zanussi@linux.intel.com Signed-off-by: Tom Zanussi Signed-off-by: Steven Rostedt (VMware) --- kernel/trace/trace_events_hist.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c index 4f4792f4c83f..d867502a56ba 100644 --- a/kernel/trace/trace_events_hist.c +++ b/kernel/trace/trace_events_hist.c @@ -2052,7 +2052,7 @@ static void expr_field_str(struct hist_field *field, char *expr) strcat(expr, hist_field_name(field, 0)); - if (field->flags) { + if (field->flags && !(field->flags & HIST_FIELD_FL_VAR_REF)) { const char *flags_str = get_hist_field_flags(field); if (flags_str) { -- 2.30.2