[PATCH] Serial: Add uart_insert_char()
Add uart_insert_char(), which handles inserting characters into the
flip buffer. This helper function handles the correct semantics
for handling overrun in addition to inserting normal characters.
Signed-off-by: Russell King <rmk@arm.linux.org.uk>
diff --git a/drivers/serial/amba-pl010.c b/drivers/serial/amba-pl010.c
index f2a5e29..2884b31 100644
--- a/drivers/serial/amba-pl010.c
+++ b/drivers/serial/amba-pl010.c
@@ -198,18 +198,8 @@
if (uart_handle_sysrq_char(port, ch, regs))
goto ignore_char;
- if ((rsr & port->ignore_status_mask) == 0) {
- tty_insert_flip_char(tty, ch, flag);
- }
- if ((rsr & UART01x_RSR_OE) &&
- tty->flip.count < TTY_FLIPBUF_SIZE) {
- /*
- * Overrun is special, since it's reported
- * immediately, and doesn't affect the current
- * character
- */
- tty_insert_flip_char(tty, 0, TTY_OVERRUN);
- }
+ uart_insert_char(port, rsr, UART01x_RSR_OE, ch, flag);
+
ignore_char:
status = UART_GET_FR(port);
}