linux-kernel - [PATCH 1/1] serial: dz: Replace DZ_XMIT_SIZE with UART_XMIT

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Message-Id: <20220825091918.8398-1-ilpo.jarvinen@linux.intel.com>
Date:   Thu, 25 Aug 2022 12:19:18 +0300
From:   Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Slaby <jirislaby@...nel.org>,
        linux-serial@...r.kernel.org,
        "Maciej W. Rozycki" <macro@...am.me.uk>,
        linux-kernel@...r.kernel.org
Cc:     Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
Subject: [PATCH 1/1] serial: dz: Replace DZ_XMIT_SIZE with UART_XMIT_SIZE

Use the normal UART_XMIT_SIZE directly.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
---
 drivers/tty/serial/dz.c | 2 +-
 drivers/tty/serial/dz.h | 5 +++--
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/tty/serial/dz.c b/drivers/tty/serial/dz.c
index 2e21acf39720..5d2588f3e6a9 100644
--- a/drivers/tty/serial/dz.c
+++ b/drivers/tty/serial/dz.c
@@ -279,7 +279,7 @@ static inline void dz_transmit_chars(struct dz_mux *mux)
 	 * so we go one char at a time) :-<
 	 */
 	tmp = xmit->buf[xmit->tail];
-	xmit->tail = (xmit->tail + 1) & (DZ_XMIT_SIZE - 1);
+	xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
 	dz_out(dport, DZ_TDR, tmp);
 	dport->port.icount.tx++;
 
diff --git a/drivers/tty/serial/dz.h b/drivers/tty/serial/dz.h
index 3b3e31954f24..59120ad2bda0 100644
--- a/drivers/tty/serial/dz.h
+++ b/drivers/tty/serial/dz.h
@@ -12,6 +12,8 @@
 #ifndef DZ_SERIAL_H
 #define DZ_SERIAL_H
 
+#include <linux/serial_core.h>
+
 /*
  * Definitions for the Control and Status Register.
  */
@@ -124,7 +126,6 @@
 
 #define DZ_NB_PORT 4
 
-#define DZ_XMIT_SIZE   4096                 /* buffer size */
-#define DZ_WAKEUP_CHARS   DZ_XMIT_SIZE/4
+#define DZ_WAKEUP_CHARS   (UART_XMIT_SIZE / 4)
 
 #endif /* DZ_SERIAL_H */
-- 
2.30.2