diff mbox series

[v6,13/22] tracing: Accept different type for synthetic event fields

Message ID 157867235358.17873.61732996461602171.stgit@devnote2 (mailing list archive)
State New, archived
Headers show
Series tracing: bootconfig: Boot-time tracing and Extra boot config | expand

Commit Message

Masami Hiramatsu (Google) Jan. 10, 2020, 4:05 p.m. UTC 
Make the synthetic event accepts a different type field to record.
However, the size and signed flag must be same.

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
---
 kernel/trace/trace_events_hist.c |    7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c
index f62de5f43e79..dae2c25b209a 100644
--- a/kernel/trace/trace_events_hist.c
+++ b/kernel/trace/trace_events_hist.c
@@ -4110,8 +4110,11 @@  static int check_synth_field(struct synth_event *event,
 
 	field = event->fields[field_pos];
 
-	if (strcmp(field->type, hist_field->type) != 0)
-		return -EINVAL;
+	if (strcmp(field->type, hist_field->type) != 0) {
+		if (field->size != hist_field->size ||
+		    field->is_signed != hist_field->is_signed)
+			return -EINVAL;
+	}
 
 	return 0;
 }