__mark_check_format(format, ## args); \
(*__mark_##channel##_##name.call)(&__mark_##channel##_##name, \
call_private, ®s, ## args); \
__mark_check_format(format, ## args); \
(*__mark_##channel##_##name.call)(&__mark_##channel##_##name, \
call_private, ®s, ## args); \