Re: [PATCH 04/15] tty: serial: qcom-geni-serial: simplify the to_dev_port() macro

[Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>]

On 18/11/2022 13:25, Bartosz Golaszewski wrote:
> From: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx>
>
> The member we want to resolve in struct qcom_geni_serial_port is called
> uport so we don't need an additional redundant parameter in this macro.
>
> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx>
> ---
Reviewed-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>

Konrad
>   drivers/tty/serial/qcom_geni_serial.c | 33 +++++++++++++--------------
>   1 file changed, 16 insertions(+), 17 deletions(-)
>
> diff --git a/drivers/tty/serial/qcom_geni_serial.c b/drivers/tty/serial/qcom_geni_serial.c
> index 97ee7c074b79..1db2795804e9 100644
> --- a/drivers/tty/serial/qcom_geni_serial.c
> +++ b/drivers/tty/serial/qcom_geni_serial.c
> @@ -133,8 +133,7 @@ static const struct uart_ops qcom_geni_uart_pops;
>   static struct uart_driver qcom_geni_console_driver;
>   static struct uart_driver qcom_geni_uart_driver;
>   
> -#define to_dev_port(ptr, member) \
> -		container_of(ptr, struct qcom_geni_serial_port, member)
> +#define to_dev_port(ptr) container_of(ptr, struct qcom_geni_serial_port, uport)
>   
>   static struct qcom_geni_serial_port qcom_geni_uart_ports[GENI_UART_PORTS] = {
>   	[0] = {
> @@ -175,7 +174,7 @@ static struct qcom_geni_serial_port qcom_geni_console_port = {
>   static int qcom_geni_serial_request_port(struct uart_port *uport)
>   {
>   	struct platform_device *pdev = to_platform_device(uport->dev);
> -	struct qcom_geni_serial_port *port = to_dev_port(uport, uport);
> +	struct qcom_geni_serial_port *port = to_dev_port(uport);
>   
>   	uport->membase = devm_platform_ioremap_resource(pdev, 0);
>   	if (IS_ERR(uport->membase))
> @@ -212,7 +211,7 @@ static void qcom_geni_serial_set_mctrl(struct uart_port *uport,
>   							unsigned int mctrl)
>   {
>   	u32 uart_manual_rfr = 0;
> -	struct qcom_geni_serial_port *port = to_dev_port(uport, uport);
> +	struct qcom_geni_serial_port *port = to_dev_port(uport);
>   
>   	if (uart_console(uport))
>   		return;
> @@ -253,7 +252,7 @@ static bool qcom_geni_serial_poll_bit(struct uart_port *uport,
>   	struct qcom_geni_private_data *private_data = uport->private_data;
>   
>   	if (private_data->drv) {
> -		port = to_dev_port(uport, uport);
> +		port = to_dev_port(uport);
>   		baud = port->baud;
>   		if (!baud)
>   			baud = 115200;
> @@ -506,7 +505,7 @@ static int handle_rx_console(struct uart_port *uport, u32 bytes, bool drop)
>   	u32 i;
>   	unsigned char buf[sizeof(u32)];
>   	struct tty_port *tport;
> -	struct qcom_geni_serial_port *port = to_dev_port(uport, uport);
> +	struct qcom_geni_serial_port *port = to_dev_port(uport);
>   
>   	tport = &uport->state->port;
>   	for (i = 0; i < bytes; ) {
> @@ -549,7 +548,7 @@ static int handle_rx_console(struct uart_port *uport, u32 bytes, bool drop)
>   static int 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, uport);
> +	struct qcom_geni_serial_port *port = to_dev_port(uport);
>   	u32 num_bytes_pw = port->tx_fifo_width / BITS_PER_BYTE;
>   	u32 words = ALIGN(bytes, num_bytes_pw) / num_bytes_pw;
>   	int ret;
> @@ -598,7 +597,7 @@ static void qcom_geni_serial_stop_tx(struct uart_port *uport)
>   {
>   	u32 irq_en;
>   	u32 status;
> -	struct qcom_geni_serial_port *port = to_dev_port(uport, uport);
> +	struct qcom_geni_serial_port *port = to_dev_port(uport);
>   
>   	irq_en = readl(uport->membase + SE_GENI_M_IRQ_EN);
>   	irq_en &= ~(M_CMD_DONE_EN | M_TX_FIFO_WATERMARK_EN);
> @@ -627,7 +626,7 @@ static void qcom_geni_serial_handle_rx(struct uart_port *uport, bool drop)
>   	u32 last_word_byte_cnt;
>   	u32 last_word_partial;
>   	u32 total_bytes;
> -	struct qcom_geni_serial_port *port = to_dev_port(uport, uport);
> +	struct qcom_geni_serial_port *port = to_dev_port(uport);
>   
>   	status = readl(uport->membase +	SE_GENI_RX_FIFO_STATUS);
>   	word_cnt = status & RX_FIFO_WC_MSK;
> @@ -649,7 +648,7 @@ static void qcom_geni_serial_stop_rx(struct uart_port *uport)
>   {
>   	u32 irq_en;
>   	u32 status;
> -	struct qcom_geni_serial_port *port = to_dev_port(uport, uport);
> +	struct qcom_geni_serial_port *port = to_dev_port(uport);
>   	u32 s_irq_status;
>   
>   	irq_en = readl(uport->membase + SE_GENI_S_IRQ_EN);
> @@ -687,7 +686,7 @@ static void qcom_geni_serial_start_rx(struct uart_port *uport)
>   {
>   	u32 irq_en;
>   	u32 status;
> -	struct qcom_geni_serial_port *port = to_dev_port(uport, uport);
> +	struct qcom_geni_serial_port *port = to_dev_port(uport);
>   
>   	status = readl(uport->membase + SE_GENI_STATUS);
>   	if (status & S_GENI_CMD_ACTIVE)
> @@ -707,7 +706,7 @@ static void qcom_geni_serial_start_rx(struct uart_port *uport)
>   static void qcom_geni_serial_handle_tx(struct uart_port *uport, bool done,
>   		bool active)
>   {
> -	struct qcom_geni_serial_port *port = to_dev_port(uport, uport);
> +	struct qcom_geni_serial_port *port = to_dev_port(uport);
>   	struct circ_buf *xmit = &uport->state->xmit;
>   	size_t avail;
>   	size_t remaining;
> @@ -803,7 +802,7 @@ static irqreturn_t qcom_geni_serial_isr(int isr, void *dev)
>   	struct uart_port *uport = dev;
>   	bool drop_rx = false;
>   	struct tty_port *tport = &uport->state->port;
> -	struct qcom_geni_serial_port *port = to_dev_port(uport, uport);
> +	struct qcom_geni_serial_port *port = to_dev_port(uport);
>   
>   	if (uport->suspended)
>   		return IRQ_NONE;
> @@ -869,7 +868,7 @@ static void qcom_geni_serial_shutdown(struct uart_port *uport)
>   
>   static int qcom_geni_serial_port_setup(struct uart_port *uport)
>   {
> -	struct qcom_geni_serial_port *port = to_dev_port(uport, uport);
> +	struct qcom_geni_serial_port *port = to_dev_port(uport);
>   	u32 rxstale = DEFAULT_BITS_PER_CHAR * STALE_TIMEOUT;
>   	u32 proto;
>   	u32 pin_swap;
> @@ -917,7 +916,7 @@ static int qcom_geni_serial_port_setup(struct uart_port *uport)
>   static int qcom_geni_serial_startup(struct uart_port *uport)
>   {
>   	int ret;
> -	struct qcom_geni_serial_port *port = to_dev_port(uport, uport);
> +	struct qcom_geni_serial_port *port = to_dev_port(uport);
>   
>   	if (!port->setup) {
>   		ret = qcom_geni_serial_port_setup(uport);
> @@ -1003,7 +1002,7 @@ static void qcom_geni_serial_set_termios(struct uart_port *uport,
>   	u32 stop_bit_len;
>   	unsigned int clk_div;
>   	u32 ser_clk_cfg;
> -	struct qcom_geni_serial_port *port = to_dev_port(uport, uport);
> +	struct qcom_geni_serial_port *port = to_dev_port(uport);
>   	unsigned long clk_rate;
>   	u32 ver, sampling_rate;
>   	unsigned int avg_bw_core;
> @@ -1288,7 +1287,7 @@ static struct uart_driver qcom_geni_uart_driver = {
>   static void qcom_geni_serial_pm(struct uart_port *uport,
>   		unsigned int new_state, unsigned int old_state)
>   {
> -	struct qcom_geni_serial_port *port = to_dev_port(uport, uport);
> +	struct qcom_geni_serial_port *port = to_dev_port(uport);
>   
>   	/* If we've never been called, treat it as off */
>   	if (old_state == UART_PM_STATE_UNDEFINED)