remove tu_fifo_discard_n() and its usage

2 files changed, 2 insertions, 13 deletions

diff --git a/src/class/vendor/vendor_device.c b/src/class/vendor/vendor_device.c
index 62e183465..eb78a13c4 100644
--- a/src/class/vendor/vendor_device.c
+++ b/src/class/vendor/vendor_device.c
@@ -122,12 +122,6 @@ uint32_t tud_vendor_n_read(uint8_t idx, void *buffer, uint32_t bufsize) {
   return tu_edpt_stream_read(p_itf->rhport, &p_itf->stream.rx, buffer, bufsize);
 }
 
-uint32_t tud_vendor_n_read_discard(uint8_t idx, uint32_t count) {
-  TU_VERIFY(idx < CFG_TUD_VENDOR, 0);
-  vendord_interface_t *p_itf = &_vendord_itf[idx];
-  return tu_edpt_stream_discard(&p_itf->stream.rx, count);
-}
-
 void tud_vendor_n_read_flush(uint8_t idx) {
   TU_VERIFY(idx < CFG_TUD_VENDOR, );
   vendord_interface_t *p_itf = &_vendord_itf[idx];
@@ -303,8 +297,10 @@ bool vendord_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t result, uint
   vendord_interface_t *p_vendor = &_vendord_itf[idx];
 
   if (ep_addr == p_vendor->stream.rx.ep_addr) {
+  #if CFG_TUD_VENDOR_RX_BUFSIZE
     // Received new data: put into stream's fifo
     tu_edpt_stream_read_xfer_complete(&p_vendor->stream.rx, xferred_bytes);
+  #endif
 
     // invoke callback
   #if CFG_TUD_VENDOR_RX_BUFSIZE == 0
diff --git a/src/class/vendor/vendor_device.h b/src/class/vendor/vendor_device.h
index 764d99070..d59c885d2 100644
--- a/src/class/vendor/vendor_device.h
+++ b/src/class/vendor/vendor_device.h
@@ -73,9 +73,6 @@ bool tud_vendor_n_peek(uint8_t idx, uint8_t *ui8);
 // Read from RX FIFO
 uint32_t tud_vendor_n_read(uint8_t idx, void *buffer, uint32_t bufsize);
 
-// Discard count bytes in RX FIFO
-uint32_t tud_vendor_n_read_discard(uint8_t idx, uint32_t count);
-
 // Flush (clear) RX FIFO
 void tud_vendor_n_read_flush(uint8_t idx);
 #endif
@@ -124,10 +121,6 @@ TU_ATTR_ALWAYS_INLINE static inline uint32_t tud_vendor_read(void *buffer, uint3
   return tud_vendor_n_read(0, buffer, bufsize);
 }
 
-TU_ATTR_ALWAYS_INLINE static inline uint32_t tud_vendor_read_discard(uint32_t count) {
-  return tud_vendor_n_read_discard(0, count);
-}
-
 TU_ATTR_ALWAYS_INLINE static inline void tud_vendor_read_flush(void) {
   tud_vendor_n_read_flush(0);
 }