trau: Fix compiler warning about decoded_trau_frame
In file included from bsc_api.c:34:0:
../../include/openbsc/trau_mux.h:62:15: warning: ‘struct decoded_trau_frame’ declared inside parameter list [enabled by default]
const struct decoded_trau_frame *tf);
^
../../include/openbsc/trau_mux.h:62:15: warning: its scope is only this definition or declaration, which is probably not what you want [enabled by default]
../../include/openbsc/trau_mux.h:64:15: warning: ‘struct decoded_trau_frame’ declared inside parameter list [enabled by default]
const struct decoded_trau_frame *tf);
^
../../include/openbsc/trau_mux.h:66:2: warning: ‘struct decoded_trau_frame’ declared inside parameter list [enabled by default]
const unsigned char *data);
^
../../include/openbsc/trau_mux.h:68:2: warning: ‘struct decoded_trau_frame’ declared inside parameter list [enabled by default]
const unsigned char *data);
diff --git a/openbsc/include/openbsc/trau_mux.h b/openbsc/include/openbsc/trau_mux.h
index d211d8d..75c359b 100644
--- a/openbsc/include/openbsc/trau_mux.h
+++ b/openbsc/include/openbsc/trau_mux.h
@@ -32,6 +32,8 @@
#include <openbsc/gsm_data.h>
#include <openbsc/mncc.h>
+struct decoded_trau_frame;
+
/* map a TRAU mux map entry */
int trau_mux_map(const struct gsm_e1_subslot *src,
const struct gsm_e1_subslot *dst);