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serial: 8250: drop unused frac from serial8250_do_get_divisor()

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'frac' is not used in the generic implementation of get_divisor. Drop it
from there. (Only some port->get_divisor() compute that and receive it
then to port->set_divisor()).

Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20250611100319.186924-27-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jiri Slaby (SUSE) 2025-06-11 12:03:12 +02:00 committed by Greg Kroah-Hartman
parent 590559339f
commit 465fd2fc94
1 changed files with 2 additions and 4 deletions
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6
drivers/tty/serial/8250/8250_port.c
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@ -2481,9 +2481,7 @@ static void serial8250_flush_buffer(struct uart_port *port)
serial8250_tx_dma_flush(up);
}
static unsigned int serial8250_do_get_divisor(struct uart_port *port,
unsigned int baud,
unsigned int *frac)
static unsigned int serial8250_do_get_divisor(struct uart_port *port, unsigned int baud)
{
upf_t magic_multiplier = port->flags & UPF_MAGIC_MULTIPLIER;
struct uart_8250_port *up = up_to_u8250p(port);
@ -2544,7 +2542,7 @@ static unsigned int serial8250_get_divisor(struct uart_port *port,
if (port->get_divisor)
return port->get_divisor(port, baud, frac);
return serial8250_do_get_divisor(port, baud, frac);
return serial8250_do_get_divisor(port, baud);
}
static unsigned char serial8250_compute_lcr(struct uart_8250_port *up, tcflag_t c_cflag)