[for-next][PATCH 02/11] tracing/user_events: Set event filter_type from type

[Steven Rostedt <rostedt@goodmis.org>]

From: Beau Belgrave <beaub@linux.microsoft.com>

Users expect that events can be filtered by the kernel. User events
currently sets all event fields as FILTER_OTHER which limits to binary
filters only. When strings are being used, functionality is reduced.

Use filter_assign_type() to find the most appropriate filter
type for each field in user events to ensure full kernel capabilities.

Link: https://lkml.kernel.org/r/20230419214140.4158-2-beaub@linux.microsoft.com

Signed-off-by: Beau Belgrave <beaub@linux.microsoft.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
---
 kernel/trace/trace_events_user.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/kernel/trace/trace_events_user.c b/kernel/trace/trace_events_user.c
index cc8c6d8b69b5..eadb58a3efba 100644
--- a/kernel/trace/trace_events_user.c
+++ b/kernel/trace/trace_events_user.c
@@ -918,6 +918,9 @@ static int user_event_add_field(struct user_event *user, const char *type,
 	field->is_signed = is_signed;
 	field->filter_type = filter_type;
 
+	if (filter_type == FILTER_OTHER)
+		field->filter_type = filter_assign_type(type);
+
 	list_add(&field->link, &user->fields);
 
 	/*
-- 
2.39.2