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-rw-r--r--src/host/layer23/src/mobile/mnccms.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/src/host/layer23/src/mobile/mnccms.c b/src/host/layer23/src/mobile/mnccms.c
index 60d2e558..6add5d58 100644
--- a/src/host/layer23/src/mobile/mnccms.c
+++ b/src/host/layer23/src/mobile/mnccms.c
@@ -34,7 +34,8 @@
static uint32_t new_callref = 1;
static LLIST_HEAD(call_list);
-static int dtmf_statemachine(struct gsm_call *call, struct gsm_mncc *mncc);
+static int dtmf_statemachine(struct gsm_call *call,
+ const struct gsm_mncc *mncc);
static void timeout_dtmf(void *arg);
/*
@@ -258,7 +259,7 @@ int mncc_recv_external(struct osmocom_ms *ms, int msg_type, void *arg)
int mncc_recv_internal(struct osmocom_ms *ms, int msg_type, void *arg)
{
struct gsm_settings *set = &ms->settings;
- struct gsm_mncc *data = arg;
+ const struct gsm_mncc *data = arg;
struct gsm_call *call = get_call_ref(data->callref);
struct gsm_mncc mncc;
uint8_t cause;
@@ -727,7 +728,8 @@ int mncc_retrieve(struct osmocom_ms *ms, int number)
* DTMF
*/
-static int dtmf_statemachine(struct gsm_call *call, struct gsm_mncc *mncc)
+static int dtmf_statemachine(struct gsm_call *call,
+ const struct gsm_mncc *mncc)
{
struct osmocom_ms *ms = call->ms;
struct gsm_mncc dtmf;