From: Mathieu Desnoyers Describes the format string standard further: Use of field names before the type specifiers.. Signed-off-by: Mathieu Desnoyers Signed-off-by: Andrew Morton --- Documentation/markers.txt | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff -puN Documentation/markers.txt~linux-kernel-markers-document-format-string Documentation/markers.txt --- a/Documentation/markers.txt~linux-kernel-markers-document-format-string +++ a/Documentation/markers.txt @@ -35,12 +35,14 @@ In order to use the macro trace_mark, yo And, -trace_mark(subsystem_event, "%d %s", someint, somestring); +trace_mark(subsystem_event, "myint %d mystring %s", someint, somestring); Where : - subsystem_event is an identifier unique to your event - subsystem is the name of your subsystem. - event is the name of the event to mark. -- "%d %s" is the formatted string for the serializer. +- "myint %d mystring %s" is the formatted string for the serializer. "myint" and + "mystring" are repectively the field names associated with the first and + second parameter. - someint is an integer. - somestring is a char pointer. _