tcp/session: debug improvements/fixes

Change-Id: I906e58b4f9827a79a6ab673f8fa2e03036c69820
Signed-off-by: Florin Coras <fcoras@cisco.com>
diff --git a/src/vnet/tcp/tcp_debug.h b/src/vnet/tcp/tcp_debug.h
index d356911..2e67c84 100755
--- a/src/vnet/tcp/tcp_debug.h
+++ b/src/vnet/tcp/tcp_debug.h
@@ -21,7 +21,7 @@
 #define TCP_DEBUG (1)
 #define TCP_DEBUG_SM (0)
 #define TCP_DEBUG_CC (0)
-#define TCP_DEBUG_CC_STAT (1)
+#define TCP_DEBUG_CC_STAT (0)
 #define TCP_DEBUG_BUFFER_ALLOCATION (0)
 
 #define foreach_tcp_dbg_evt		\
@@ -767,6 +767,9 @@
   _tc->c_cc_stat_tstamp = tcp_time_now();				\
 }									\
 }
+#else
+#define TCP_EVT_CC_STAT_HANDLER(_tc, ...)
+#endif
 
 /*
  * Buffer allocation
@@ -776,22 +779,22 @@
 #define TCP_DBG_BUFFER_ALLOC_MAYBE_FAIL(thread_index)			\
 {									\
   static u32 *buffer_fail_counters;					\
-  if (PREDICT_FALSE (buffer_fail_counters == 0))				\
+  if (PREDICT_FALSE (buffer_fail_counters == 0))			\
     {									\
       u32 num_threads;							\
-      vlib_thread_main_t *vtm = vlib_get_thread_main ();			\
+      vlib_thread_main_t *vtm = vlib_get_thread_main ();		\
       num_threads = 1 /* main thread */  + vtm->n_threads;		\
       vec_validate (buffer_fail_counters, num_threads - 1);		\
     }									\
   if (PREDICT_FALSE (tcp_main.buffer_fail_fraction != 0.0))		\
     {									\
-      if (PREDICT_TRUE (buffer_fail_counters[thread_index] > 0))		\
+      if (PREDICT_TRUE (buffer_fail_counters[thread_index] > 0))	\
         {								\
-          if ((1.0 / (f32) (buffer_fail_counters[thread_index]))		\
+          if ((1.0 / (f32) (buffer_fail_counters[thread_index]))	\
               < tcp_main.buffer_fail_fraction)				\
             {								\
               buffer_fail_counters[thread_index] = 0.0000001;		\
-              return -1;							\
+              return -1;						\
             }								\
         }								\
       buffer_fail_counters[thread_index] ++;				\
@@ -801,10 +804,6 @@
 #define TCP_DBG_BUFFER_ALLOC_MAYBE_FAIL(thread_index)
 #endif
 
-#else
-#define TCP_EVT_CC_STAT_HANDLER(_tc, ...)
-#endif
-
 #endif /* SRC_VNET_TCP_TCP_DEBUG_H_ */
 /*
  * fd.io coding-style-patch-verification: ON