Messages in this thread Patch in this message | | | Date | Tue, 14 Jan 2020 16:03:32 -0500 | From | Steven Rostedt <> | Subject | [for-next][PATCH 16/26] tracing: Accept different type for synthetic event fields |
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From: Masami Hiramatsu <mhiramat@kernel.org>
Make the synthetic event accepts a different type field to record. However, the size and signed flag must be same.
Link: http://lkml.kernel.org/r/157867235358.17873.61732996461602171.stgit@devnote2
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> --- kernel/trace/trace_events_hist.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c index 0454abaeb486..4f4759c6e972 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; } -- 2.24.1
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