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From: Bartosz Golaszewski <brgl@bgdev.pl>
To: Andy Gross <agross@kernel.org>,
	Bjorn Andersson <andersson@kernel.org>,
	Konrad Dybcio <konrad.dybcio@somainline.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jiri Slaby <jirislaby@kernel.org>,
	Srinivas Kandagatla <srinivas.kandagatla@linaro.org>,
	Vinod Koul <vkoul@kernel.org>, Alex Elder <elder@kernel.org>
Cc: linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org,
	linux-serial@vger.kernel.org,
	Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Subject: [PATCH 09/15] tty: serial: qcom-geni-serial: drop the return value from handle_rx
Date: Fri, 18 Nov 2022 13:25:33 +0100	[thread overview]
Message-ID: <20221118122539.384993-10-brgl@bgdev.pl> (raw)
In-Reply-To: <20221118122539.384993-1-brgl@bgdev.pl>

From: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

The return value of the handle_rx() callback is never checked. Drop it.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
---
 drivers/tty/serial/qcom_geni_serial.c | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/drivers/tty/serial/qcom_geni_serial.c b/drivers/tty/serial/qcom_geni_serial.c
index 4b155ca0ac74..72d0e7b91080 100644
--- a/drivers/tty/serial/qcom_geni_serial.c
+++ b/drivers/tty/serial/qcom_geni_serial.c
@@ -114,7 +114,7 @@ struct qcom_geni_serial_port {
 	u32 tx_fifo_width;
 	u32 rx_fifo_depth;
 	bool setup;
-	int (*handle_rx)(struct uart_port *uport, u32 bytes, bool drop);
+	void (*handle_rx)(struct uart_port *uport, u32 bytes, bool drop);
 	unsigned int baud;
 	void *rx_fifo;
 	u32 loopback;
@@ -499,7 +499,7 @@ static void qcom_geni_serial_console_write(struct console *co, const char *s,
 		spin_unlock_irqrestore(&uport->lock, flags);
 }
 
-static int handle_rx_console(struct uart_port *uport, u32 bytes, bool drop)
+static void handle_rx_console(struct uart_port *uport, u32 bytes, bool drop)
 {
 	u32 i;
 	unsigned char buf[sizeof(u32)];
@@ -534,16 +534,15 @@ static int handle_rx_console(struct uart_port *uport, u32 bytes, bool drop)
 	}
 	if (!drop)
 		tty_flip_buffer_push(tport);
-	return 0;
 }
 #else
-static int handle_rx_console(struct uart_port *uport, u32 bytes, bool drop)
+static void handle_rx_console(struct uart_port *uport, u32 bytes, bool drop)
 {
-	return -EPERM;
+
 }
 #endif /* CONFIG_SERIAL_QCOM_GENI_CONSOLE */
 
-static int handle_rx_uart(struct uart_port *uport, u32 bytes, bool drop)
+static void handle_rx_uart(struct uart_port *uport, u32 bytes, bool drop)
 {
 	struct tty_port *tport;
 	struct qcom_geni_serial_port *port = to_dev_port(uport);
@@ -554,7 +553,7 @@ static int handle_rx_uart(struct uart_port *uport, u32 bytes, bool drop)
 	tport = &uport->state->port;
 	ioread32_rep(uport->membase + SE_GENI_RX_FIFOn, port->rx_fifo, words);
 	if (drop)
-		return 0;
+		return;
 
 	ret = tty_insert_flip_string(tport, port->rx_fifo, bytes);
 	if (ret != bytes) {
@@ -564,7 +563,6 @@ static int handle_rx_uart(struct uart_port *uport, u32 bytes, bool drop)
 	}
 	uport->icount.rx += ret;
 	tty_flip_buffer_push(tport);
-	return ret;
 }
 
 static unsigned int qcom_geni_serial_tx_empty(struct uart_port *uport)
-- 
2.37.2


  parent reply	other threads:[~2022-11-18 12:27 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-11-18 12:25 [PATCH 00/15] serial: qcom-geni-serial: implement support for SE DMA Bartosz Golaszewski
2022-11-18 12:25 ` [PATCH 01/15] tty: serial: qcom-geni-serial: drop unneeded forward definitions Bartosz Golaszewski
2022-11-18 13:15   ` Konrad Dybcio
2022-11-18 12:25 ` [PATCH 02/15] tty: serial: qcom-geni-serial: remove unused symbols Bartosz Golaszewski
2022-11-18 13:19   ` Konrad Dybcio
2022-11-18 12:25 ` [PATCH 03/15] tty: serial: qcom-geni-serial: align #define values Bartosz Golaszewski
2022-11-18 13:20   ` Konrad Dybcio
2022-11-18 12:25 ` [PATCH 04/15] tty: serial: qcom-geni-serial: simplify the to_dev_port() macro Bartosz Golaszewski
2022-11-18 13:22   ` Konrad Dybcio
2022-11-18 15:11   ` Ilpo Järvinen
2022-11-18 12:25 ` [PATCH 05/15] tty: serial: qcom-geni-serial: remove stray newlines Bartosz Golaszewski
2022-11-18 13:23   ` Konrad Dybcio
2022-11-18 12:25 ` [PATCH 06/15] tty: serial: qcom-geni-serial: refactor qcom_geni_serial_isr() Bartosz Golaszewski
2022-11-18 13:23   ` Konrad Dybcio
2022-11-18 15:12   ` Ilpo Järvinen
2022-11-18 12:25 ` [PATCH 07/15] tty: serial: qcom-geni-serial: remove unneeded tabs Bartosz Golaszewski
2022-11-18 13:25   ` Konrad Dybcio
2022-11-18 12:25 ` [PATCH 08/15] tty: serial: qcom-geni-serial: split out the FIFO tx code Bartosz Golaszewski
2022-11-18 13:27   ` Konrad Dybcio
2022-11-18 15:30   ` Ilpo Järvinen
2022-11-18 12:25 ` Bartosz Golaszewski [this message]
2022-11-18 13:28   ` [PATCH 09/15] tty: serial: qcom-geni-serial: drop the return value from handle_rx Konrad Dybcio
2022-11-18 12:25 ` [PATCH 10/15] tty: serial: qcom-geni-serial: use of_device_id data Bartosz Golaszewski
2022-11-18 13:31   ` Konrad Dybcio
2022-11-18 12:25 ` [PATCH 11/15] tty: serial: qcom-geni-serial: stop operations in progress at shutdown Bartosz Golaszewski
2022-11-18 13:31   ` Konrad Dybcio
2022-11-18 12:25 ` [PATCH 12/15] tty: serial: provide devm_uart_add_one_port() Bartosz Golaszewski
2022-11-18 12:25 ` [PATCH 13/15] tty: serial: qcom-geni-serial: use devres for uart port management Bartosz Golaszewski
2022-11-18 12:25 ` [PATCH 14/15] soc: qcom-geni-se: add more symbol definitions Bartosz Golaszewski
2022-11-18 13:35   ` Konrad Dybcio
2022-11-18 12:25 ` [PATCH 15/15] tty: serial: qcom-geni-serial: add support for serial engine DMA Bartosz Golaszewski
2022-11-18 15:50   ` Ilpo Järvinen

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