linux-kernel - [PATCH v8-RESEND 03/33] dyndbg: reword "class unknown," to "class:_UNKNOWN

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Message-ID: <20240516174357.26755-4-jim.cromie@gmail.com>
Date: Thu, 16 May 2024 11:43:27 -0600
From: Jim Cromie <jim.cromie@...il.com>
To: jbaron@...mai.com,
	gregkh@...uxfoundation.org,
	linux-kernel@...r.kernel.org
Cc: ukaszb@...omium.org,
	linux@...musvillemoes.dk,
	joe@...ches.com,
	mcgrof@...nel.org,
	daniel.vetter@...ll.ch,
	tvrtko.ursulin@...ux.intel.com,
	jani.nikula@...el.com,
	ville.syrjala@...ux.intel.com,
	seanpaul@...omium.org,
	robdclark@...il.com,
	groeck@...gle.com,
	yanivt@...gle.com,
	bleung@...gle.com,
	Jim Cromie <jim.cromie@...il.com>
Subject: [PATCH v8-RESEND 03/33] dyndbg: reword "class unknown," to "class:_UNKNOWN_"

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, so change it to
"class:_UNKNOWN_" to loudly announce the erroneous situation, and to
make it exceedingly greppable.

Signed-off-by: Jim Cromie <jim.cromie@...il.com>
---
 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");
 
-- 
2.45.0