Add call_compare_by_phone_number utility function

This utility will be used by HFP voicecall driver to compare
two calls. In some hardware, the call index may be shift when
a call transitions from waiting to incoming state (e.g. all other
held and active calls are released)

1 files changed, 9 insertions, 0 deletions

diff --git a/drivers/atmodem/atutil.c b/drivers/atmodem/atutil.c
index 26d0c259..687a466f 100644
--- a/drivers/atmodem/atutil.c
+++ b/drivers/atmodem/atutil.c
@@ -67,6 +67,15 @@ gint at_util_call_compare_by_status(gconstpointer a, gconstpointer b)
 	return 0;
 }
 
+gint at_util_call_compare_by_phone_number(gconstpointer a, gconstpointer b)
+{
+	const struct ofono_call *call = a;
+	const struct ofono_phone_number *pb = b;
+
+	return memcmp(&call->phone_number, pb,
+				sizeof(struct ofono_phone_number));
+}
+
 gint at_util_call_compare(gconstpointer a, gconstpointer b)
 {
 	const struct ofono_call *ca = a;