remove tu_fifo_discard_n() and its usage

1 files changed, 3 insertions, 9 deletions

diff --git a/src/common/tusb_private.h b/src/common/tusb_private.h
index df518d5ff..dc62ae848 100644
--- a/src/common/tusb_private.h
+++ b/src/common/tusb_private.h
@@ -172,17 +172,15 @@ uint32_t tu_edpt_stream_read_xfer(uint8_t hwid, tu_edpt_stream_t* s);
 // Complete read transfer by writing EP -> FIFO. Must be called in the transfer complete callback
 TU_ATTR_ALWAYS_INLINE static inline
 void tu_edpt_stream_read_xfer_complete(tu_edpt_stream_t* s, uint32_t xferred_bytes) {
-  if (0u != tu_fifo_depth(&s->ff) && s->ep_buf != NULL) {
-    tu_fifo_write_n(&s->ff, s->ep_buf, (uint16_t) xferred_bytes);
+  if (s->ep_buf != NULL) {
+    tu_fifo_write_n(&s->ff, s->ep_buf, (uint16_t)xferred_bytes);
   }
 }
 
 // Complete read transfer with provided buffer
 TU_ATTR_ALWAYS_INLINE static inline
 void tu_edpt_stream_read_xfer_complete_with_buf(tu_edpt_stream_t *s, const void *buf, uint32_t xferred_bytes) {
-  if (0u != tu_fifo_depth(&s->ff)) {
-    tu_fifo_write_n(&s->ff, buf, (uint16_t) xferred_bytes);
-  }
+  tu_fifo_write_n(&s->ff, buf, (uint16_t)xferred_bytes);
 }
 
 // Get the number of bytes available for reading
@@ -194,10 +192,6 @@ TU_ATTR_ALWAYS_INLINE static inline bool tu_edpt_stream_peek(tu_edpt_stream_t *s
   return tu_fifo_peek(&s->ff, ch);
 }
 
-TU_ATTR_ALWAYS_INLINE static inline uint32_t tu_edpt_stream_discard(tu_edpt_stream_t *s, uint32_t len) {
-  return (uint32_t)tu_fifo_discard_n(&s->ff, (uint16_t)len);
-}
-
 #ifdef __cplusplus
  }
 #endif