diff --git a/components/vbus/vbus.c b/components/vbus/vbus.c
index b6d59af6cf..8add15d9db 100644
--- a/components/vbus/vbus.c
+++ b/components/vbus/vbus.c
@@ -21,38 +21,11 @@
 #define RT_VBUS_RB_LOW_TICK   (RT_VMM_RB_BLK_NR * 2 / 3)
 #define RT_VBUS_RB_TICK_STEP  (100)
 
-#ifndef RT_USING_LOGTRACE
 /* console could be run on vbus. If we log on it, there will be oops. */
 #define vbus_debug(...)
 #define vbus_verbose(...)
 #define vbus_info(...)
 #define vbus_error(...)
-#else // have RT_USING_LOGTRACE
-#include <log_trace.h>
-
-#if defined(log_session_lvl)
-/* Define log_trace_session as const so the compiler could optimize some log
- * out. */
-const static struct log_trace_session _lgs = {
-    .id  = {.name = "vbus"},
-    .lvl = LOG_TRACE_LEVEL_VERBOSE,
-};
-
-#define vbus_debug(fmt, ...)   log_session_lvl(&_lgs, LOG_TRACE_LEVEL_DEBUG,   fmt, ##__VA_ARGS__)
-#define vbus_verbose(fmt, ...) log_session_lvl(&_lgs, LOG_TRACE_LEVEL_VERBOSE, fmt, ##__VA_ARGS__)
-#define vbus_info(fmt, ...)    log_session_lvl(&_lgs, LOG_TRACE_LEVEL_INFO,    fmt, ##__VA_ARGS__)
-#define vbus_error(fmt, ...)   log_session_lvl(&_lgs, LOG_TRACE_LEVEL_ERROR,    fmt, ##__VA_ARGS__)
-#else
-static struct log_trace_session _lgs = {
-    .id  = {.name = "vbus"},
-    .lvl = LOG_TRACE_LEVEL_VERBOSE,
-};
-#define vbus_debug(fmt, ...)   log_session(&_lgs, LOG_TRACE_DEBUG""fmt, ##__VA_ARGS__)
-#define vbus_verbose(fmt, ...) log_session(&_lgs, LOG_TRACE_VERBOSE""fmt, ##__VA_ARGS__)
-#define vbus_info(fmt, ...)    log_session(&_lgs, LOG_TRACE_INFO""fmt, ##__VA_ARGS__)
-#define vbus_error(fmt, ...)   log_session(&_lgs, LOG_TRACE_ERROR""fmt, ##__VA_ARGS__)
-#endif
-#endif // RT_USING_LOGTRACE
 
 #ifndef ARRAY_SIZE
 #define ARRAY_SIZE(ar)     (sizeof(ar)/sizeof(ar[0]))
@@ -1158,10 +1131,6 @@ int rt_vbus_init(void *outr, void *inr)
 {
     int i;
 
-#ifdef RT_USING_LOGTRACE
-    log_trace_register_session(&_lgs);
-#endif
-
     if (outr > inr)
     {
         RT_ASSERT((char*)outr - (char*)inr >= sizeof(struct rt_vbus_ring));