Almost all serial drivers use WAKEUP_CHARS (256) from serial_core.h which also matches what n_tty_poll() uses for asserting EPOLLOUT. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@xxxxxxxxxxxxxxx> --- drivers/tty/serial/dz.c | 2 +- drivers/tty/serial/dz.h | 3 --- 2 files changed, 1 insertion(+), 4 deletions(-) diff --git a/drivers/tty/serial/dz.c b/drivers/tty/serial/dz.c index 5d2588f3e6a9..5df46f22abaa 100644 --- a/drivers/tty/serial/dz.c +++ b/drivers/tty/serial/dz.c @@ -283,7 +283,7 @@ static inline void dz_transmit_chars(struct dz_mux *mux) dz_out(dport, DZ_TDR, tmp); dport->port.icount.tx++; - if (uart_circ_chars_pending(xmit) < DZ_WAKEUP_CHARS) + if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS) uart_write_wakeup(&dport->port); /* Are we are done. */ diff --git a/drivers/tty/serial/dz.h b/drivers/tty/serial/dz.h index 3b3e31954f24..4b502bfad560 100644 --- a/drivers/tty/serial/dz.h +++ b/drivers/tty/serial/dz.h @@ -124,7 +124,4 @@ #define DZ_NB_PORT 4 -#define DZ_XMIT_SIZE 4096 /* buffer size */ -#define DZ_WAKEUP_CHARS DZ_XMIT_SIZE/4 - #endif /* DZ_SERIAL_H */ -- 2.30.2
