logging: introduce log levels at caller site
This introduces a new LOGP() macro together with LOGL_* definition to
support multiple log levels (severities) throughout the codebase.
Please note that the actual logging system does not use them yet,
in this patch we simply introduce the new macros at the caller site.
diff --git a/openbsc/src/trau_mux.c b/openbsc/src/trau_mux.c
index 6a19f0c..7ea65ce 100644
--- a/openbsc/src/trau_mux.c
+++ b/openbsc/src/trau_mux.c
@@ -56,8 +56,10 @@
struct map_entry *me;
me = talloc(tall_map_ctx, struct map_entry);
- if (!me)
+ if (!me) {
+ LOGP(DMIB, LOGL_FATAL, "Out of memory\n");
return -ENOMEM;
+ }
DEBUGP(DCC, "Setting up TRAU mux map between (e1=%u,ts=%u,ss=%u) "
"and (e1=%u,ts=%u,ss=%u)\n",