On Wed, 6 Dec 2023 at 08:37, Jiri Slaby (SUSE) <jirislaby@xxxxxxxxxx> wrote: > > sdio_in() returns a value returned from sdio_readb(). The latter returns > u8. So should the former. Therefore, switch sdio_in() return type to u8 > and all its callers too. > > Signed-off-by: Jiri Slaby (SUSE) <jirislaby@xxxxxxxxxx> > Cc: Ulf Hansson <ulf.hansson@xxxxxxxxxx> > Cc: linux-mmc@xxxxxxxxxxxxxxx Acked-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx> > --- > drivers/mmc/core/sdio_uart.c | 19 ++++++++----------- > 1 file changed, 8 insertions(+), 11 deletions(-) > > diff --git a/drivers/mmc/core/sdio_uart.c b/drivers/mmc/core/sdio_uart.c > index ef38dcd3a887..a05322f15771 100644 > --- a/drivers/mmc/core/sdio_uart.c > +++ b/drivers/mmc/core/sdio_uart.c > @@ -178,11 +178,9 @@ static inline void sdio_uart_release_func(struct sdio_uart_port *port) > sdio_release_host(port->func); > } > > -static inline unsigned int sdio_in(struct sdio_uart_port *port, int offset) > +static inline u8 sdio_in(struct sdio_uart_port *port, int offset) > { > - unsigned char c; > - c = sdio_readb(port->func, port->regs_offset + offset, NULL); > - return c; > + return sdio_readb(port->func, port->regs_offset + offset, NULL); > } > > static inline void sdio_out(struct sdio_uart_port *port, int offset, int value) > @@ -192,8 +190,8 @@ static inline void sdio_out(struct sdio_uart_port *port, int offset, int value) > > static unsigned int sdio_uart_get_mctrl(struct sdio_uart_port *port) > { > - unsigned char status; > unsigned int ret; > + u8 status; > > /* FIXME: What stops this losing the delta bits and breaking > sdio_uart_check_modem_status ? */ > @@ -354,14 +352,13 @@ static void sdio_uart_stop_rx(struct sdio_uart_port *port) > sdio_out(port, UART_IER, port->ier); > } > > -static void sdio_uart_receive_chars(struct sdio_uart_port *port, > - unsigned int *status) > +static void sdio_uart_receive_chars(struct sdio_uart_port *port, u8 *status) > { > - unsigned int ch, flag; > + unsigned int flag; > int max_count = 256; > > do { > - ch = sdio_in(port, UART_RX); > + u8 ch = sdio_in(port, UART_RX); > flag = TTY_NORMAL; > port->icount.rx++; > > @@ -449,8 +446,8 @@ static void sdio_uart_transmit_chars(struct sdio_uart_port *port) > > static void sdio_uart_check_modem_status(struct sdio_uart_port *port) > { > - int status; > struct tty_struct *tty; > + u8 status; > > status = sdio_in(port, UART_MSR); > > @@ -499,7 +496,7 @@ static void sdio_uart_check_modem_status(struct sdio_uart_port *port) > static void sdio_uart_irq(struct sdio_func *func) > { > struct sdio_uart_port *port = sdio_get_drvdata(func); > - unsigned int iir, lsr; > + u8 iir, lsr; > > /* > * In a few places sdio_uart_irq() is called directly instead of > -- > 2.43.0 >