fix -wconversion-int and add minor comment

1 files changed, 6 insertions, 2 deletions

diff --git a/src/common/tusb_types.h b/src/common/tusb_types.h
index cfa24bd82..e11f08dd1 100644
--- a/src/common/tusb_types.h
+++ b/src/common/tusb_types.h
@@ -513,15 +513,19 @@ TU_ATTR_ALWAYS_INLINE static inline uint16_t tu_edpt_packet_size(tusb_desc_endpo
   return tu_le16toh(desc_ep->wMaxPacketSize) & TU_GENMASK(10, 0);
 }
 
-static inline const char *tu_edpt_dir_str(tusb_dir_t dir) {
+#if CFG_TUSB_DEBUG
+TU_ATTR_ALWAYS_INLINE static inline const char *tu_edpt_dir_str(tusb_dir_t dir)
+{
   static const char *str[] = {"out", "in"};
   return str[dir];
 }
 
-static inline const char *tu_edpt_type_str(tusb_xfer_type_t t) {
+TU_ATTR_ALWAYS_INLINE static inline const char *tu_edpt_type_str(tusb_xfer_type_t t)
+{
   static const char *str[] = {"control", "isochronous", "bulk", "interrupt"};
   return str[t];
 }
+#endif
 
 //--------------------------------------------------------------------+
 // Descriptor helper