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tty: make tty_operations::send_xchar accept u8 char

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tty_operations::send_xchar is one of the last users of 'char' type for
characters in the tty layer. Convert it to u8 now.

Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Cc: Karsten Keil <isdn@linux-pingi.de>
Cc: Ulf Hansson <ulf.hansson@linaro.org>
Cc: Marcel Holtmann <marcel@holtmann.org>
Cc: Johan Hedberg <johan.hedberg@gmail.com>
Cc: Luiz Augusto von Dentz <luiz.dentz@gmail.com>
Cc: netdev@vger.kernel.org
Cc: linux-mmc@vger.kernel.org
Cc: linux-bluetooth@vger.kernel.org
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Link: https://lore.kernel.org/r/20231206073712.17776-5-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jiri Slaby (SUSE) 2023-12-06 08:36:49 +01:00 committed by Greg Kroah-Hartman
parent 49943393c9
commit 3a00da0279
8 changed files with 10 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/isdn/capi/capi.c
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@ -1231,9 +1231,9 @@ static void capinc_tty_hangup(struct tty_struct *tty)
tty_port_hangup(&mp->port);
}
static void capinc_tty_send_xchar(struct tty_struct *tty, char ch)
static void capinc_tty_send_xchar(struct tty_struct *tty, u8 ch)
{
pr_debug("capinc_tty_send_xchar(%d)\n", ch);
pr_debug("capinc_tty_send_xchar(%u)\n", ch);
}
static const struct tty_operations capinc_ops = {

2
drivers/mmc/core/sdio_uart.c
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@ -792,7 +792,7 @@ static unsigned int sdio_uart_chars_in_buffer(struct tty_struct *tty)
return kfifo_len(&port->xmit_fifo);
}
static void sdio_uart_send_xchar(struct tty_struct *tty, char ch)
static void sdio_uart_send_xchar(struct tty_struct *tty, u8 ch)
{
struct sdio_uart_port *port = tty->driver_data;

2
drivers/tty/amiserial.c
View File

@ -811,7 +811,7 @@ static void rs_flush_buffer(struct tty_struct *tty)
* This function is used to send a high-priority XON/XOFF character to
* the device
*/
static void rs_send_xchar(struct tty_struct *tty, char ch)
static void rs_send_xchar(struct tty_struct *tty, u8 ch)
{
struct serial_state *info = tty->driver_data;
unsigned long flags;

2
drivers/tty/serial/serial_core.c
View File

@ -687,7 +687,7 @@ EXPORT_SYMBOL_GPL(uart_xchar_out);
* This function is used to send a high-priority XON/XOFF character to
* the device
*/
static void uart_send_xchar(struct tty_struct *tty, char ch)
static void uart_send_xchar(struct tty_struct *tty, u8 ch)
{
struct uart_state *state = tty->driver_data;
struct uart_port *port;

2
drivers/tty/tty_io.c
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@ -1149,7 +1149,7 @@ ssize_t redirected_tty_write(struct kiocb *iocb, struct iov_iter *iter)
*
* Locking: none for xchar method, write ordering for write method.
*/
int tty_send_xchar(struct tty_struct *tty, char ch)
int tty_send_xchar(struct tty_struct *tty, u8 ch)
{
bool was_stopped = tty->flow.stopped;

2
include/linux/tty.h
View File

@ -410,7 +410,7 @@ void tty_wait_until_sent(struct tty_struct *tty, long timeout);
void stop_tty(struct tty_struct *tty);
void start_tty(struct tty_struct *tty);
void tty_write_message(struct tty_struct *tty, char *msg);
int tty_send_xchar(struct tty_struct *tty, char ch);
int tty_send_xchar(struct tty_struct *tty, u8 ch);
int tty_put_char(struct tty_struct *tty, unsigned char c);
unsigned int tty_chars_in_buffer(struct tty_struct *tty);
unsigned int tty_write_room(struct tty_struct *tty);

4
include/linux/tty_driver.h
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@ -242,7 +242,7 @@ struct serial_struct;
* Optional: If not provided, the device is assumed to have no FIFO.
* Usually correct to invoke via tty_wait_until_sent(). May sleep.
*
* @send_xchar: ``void ()(struct tty_struct *tty, char ch)``
* @send_xchar: ``void ()(struct tty_struct *tty, u8 ch)``
*
* This routine is used to send a high-priority XON/XOFF character (@ch)
* to the @tty device.
@ -374,7 +374,7 @@ struct tty_operations {
void (*flush_buffer)(struct tty_struct *tty);
void (*set_ldisc)(struct tty_struct *tty);
void (*wait_until_sent)(struct tty_struct *tty, int timeout);
void (*send_xchar)(struct tty_struct *tty, char ch);
void (*send_xchar)(struct tty_struct *tty, u8 ch);
int (*tiocmget)(struct tty_struct *tty);
int (*tiocmset)(struct tty_struct *tty,
unsigned int set, unsigned int clear);

2
net/bluetooth/rfcomm/tty.c
View File

@ -1041,7 +1041,7 @@ static void rfcomm_tty_flush_buffer(struct tty_struct *tty)
tty_wakeup(tty);
}
static void rfcomm_tty_send_xchar(struct tty_struct *tty, char ch)
static void rfcomm_tty_send_xchar(struct tty_struct *tty, u8 ch)
{
BT_DBG("tty %p ch %c", tty, ch);
}