When a dyndbg classname is unknown to a kernel module (as before previous patch), the callsite is un-addressable via >control queries. The control-file displays this condition as "class unknown," currently. That spelling is sub-optimal/too-generic, so change it to "class:_UNKNOWN_" to loudly announce the erroneous situation, and to make it exceedingly greppable. NB: pr_debugs are only alterable via >control, and to protect class'd debug's from unintended alteration, "class name" must be given to change them. Classmaps map known classes to reserved .class_ids (the 1..64 val range per module). Signed-off-by: Jim Cromie <jim.cromie@xxxxxxxxx> --- lib/dynamic_debug.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c index f2c5e7910bb1..73ccf947d4aa 100644 --- a/lib/dynamic_debug.c +++ b/lib/dynamic_debug.c @@ -1154,7 +1154,7 @@ static int ddebug_proc_show(struct seq_file *m, void *p) if (class) seq_printf(m, " class:%s", class); else - seq_printf(m, " class unknown, _id:%d", dp->class_id); + seq_printf(m, " class:_UNKNOWN_ _id:%d", dp->class_id); } seq_puts(m, "\n"); -- 2.45.2
