xiaoxiang781216 commented on code in PR #20099:
URL: https://github.com/apache/nuttx/pull/20099#discussion_r3971991777
##########
drivers/serial/serial_io.c:
##########
@@ -173,22 +174,32 @@ void uart_recvchars(FAR uart_dev_t *dev)
while (uart_rxavailable(dev))
{
int nexthead = rxbuf->head + 1 < rxbuf->size ? rxbuf->head + 1 : 0;
- bool is_full = (nexthead == rxbuf->tail);
Review Comment:
```
sbuf_size_t tail = rxbuf->tail;
bool is_full = (nexthead == tail);
```
and remove line 188-189
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