counters: minor cleanups

src/counters.c

@@ -1219,7 +1219,6 @@ SCPerfCounterArray *SCPerfGetAllCountersArray(SCPerfContext *pctx)
  *
  * \param pca      Pointer to the SCPerfCounterArray
  * \param pctx     Pointer the the tv's SCPerfContext
- * \param reset_lc Indicates whether the local counter has to be reset or not
  *
  * \retval  0 on success
  * \retval -1 on error

src/threadvars.h

@@ -101,8 +101,12 @@ typedef struct ThreadVars_ {
     uint16_t rank;
     int thread_priority; /** priority (real time) for this thread. Look at threads.h */
 
-    /* the perf counter context and the perf counter array */
+    /* counters */
+
+    /** public counter store: counter syncs update this */
     SCPerfContext sc_perf_pctx;
+
+    /** private counter store: counter updates modify this */
     SCPerfCounterArray *sc_perf_pca;
 
     SCCtrlMutex *ctrl_mutex;