[PATCH i-g-t v2 1/2] /lib/xe/xe_eudebug: Add trigger removal method

[Jan Sokolowski <jan.sokolowski@intel.com>]

Add method xe_eudebug_debugger_remove_trigger to remove
trigger from list of triggers.

Signed-off-by: Jan Sokolowski <jan.sokolowski@intel.com>
Reviewed-by: Dominik Grzegorzek <dominik.grzegorzek@intel.com>
Signed-off-by: Dominik Grzegorzk <dominik.grzegorzek@intel.com>
---
 lib/xe/xe_eudebug.c | 30 ++++++++++++++++++++++++++++++
 lib/xe/xe_eudebug.h |  2 ++
 2 files changed, 32 insertions(+)

diff --git a/lib/xe/xe_eudebug.c b/lib/xe/xe_eudebug.c
index 36763a184..74aa26024 100644
--- a/lib/xe/xe_eudebug.c
+++ b/lib/xe/xe_eudebug.c
@@ -1226,6 +1226,36 @@ void xe_eudebug_debugger_add_trigger(struct xe_eudebug_debugger *d,
 	igt_debug("added trigger %p\n", t);
 }
 
+/**
+ * xe_eudebug_debugger_remove_trigger:
+ * @d: pointer to the debugger
+ * @type: the type of the event which activates the trigger.
+ * @fn: function to be removed when event of @type was read by the debugger.
+ *
+ * Removes function @fn from the list of triggers activated when event of
+ * @type has been read by worker.
+ */
+void xe_eudebug_debugger_remove_trigger(struct xe_eudebug_debugger *d,
+					int type, xe_eudebug_trigger_fn fn)
+{
+	struct event_trigger *t;
+	bool found = false;
+
+	igt_list_for_each_entry(t, &d->triggers, link) {
+		if (type == t->type && fn == t->fn) {
+			igt_list_del(&t->link);
+			found = true;
+			break;
+		}
+	}
+	if (found) {
+		igt_debug("removed trigger %p\n", t);
+		free(t);
+	} else {
+		igt_debug("trigger of type %d was not removed as it's not in the list\n", type);
+	}
+}
+
 /**
  * xe_eudebug_debugger_start_worker:
  * @d: pointer to the debugger
diff --git a/lib/xe/xe_eudebug.h b/lib/xe/xe_eudebug.h
index 6e4666333..9aadbe847 100644
--- a/lib/xe/xe_eudebug.h
+++ b/lib/xe/xe_eudebug.h
@@ -150,6 +150,8 @@ void xe_eudebug_debugger_detach(struct xe_eudebug_debugger *d);
 void xe_eudebug_debugger_set_data(struct xe_eudebug_debugger *c, void *ptr);
 void xe_eudebug_debugger_add_trigger(struct xe_eudebug_debugger *d, int type,
 				     xe_eudebug_trigger_fn fn);
+void xe_eudebug_debugger_remove_trigger(struct xe_eudebug_debugger *d, int type,
+				     xe_eudebug_trigger_fn fn);
 void xe_eudebug_debugger_signal_stage(struct xe_eudebug_debugger *d, uint64_t stage);
 void xe_eudebug_debugger_wait_stage(struct xe_eudebug_session *s, uint64_t stage);
 
-- 
2.34.1