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usb: serial: Remove unused tty->hw_stopped 

The tty core does not test tty->hw_stopped; remove from drivers
which don't test it themselves.

Acked-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Peter Hurley 2014-09-10 15:06:27 -04:00 committed by Greg Kroah-Hartman
parent d01f4d181c
commit d95e3caea2
3 changed files with 3 additions and 18 deletions
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7
drivers/usb/serial/digi_acceleport.c
View File

@ -834,7 +834,6 @@ static void digi_set_termios(struct tty_struct *tty,
arg |= DIGI_OUTPUT_FLOW_CONTROL_CTS;
} else {
arg &= ~DIGI_OUTPUT_FLOW_CONTROL_CTS;
tty->hw_stopped = 0;
}
buf[i++] = DIGI_CMD_SET_OUTPUT_FLOW_CONTROL;
@ -1500,15 +1499,11 @@ static int digi_read_oob_callback(struct urb *urb)
if (val & DIGI_READ_INPUT_SIGNALS_CTS) {
priv->dp_modem_signals |= TIOCM_CTS;
/* port must be open to use tty struct */
if (rts) {
tty->hw_stopped = 0;
if (rts)
tty_port_tty_wakeup(&port->port);
}
} else {
priv->dp_modem_signals &= ~TIOCM_CTS;
/* port must be open to use tty struct */
if (rts)
tty->hw_stopped = 1;
}
if (val & DIGI_READ_INPUT_SIGNALS_DSR)
priv->dp_modem_signals |= TIOCM_DSR;

7
drivers/usb/serial/io_ti.c
View File

@ -1456,12 +1456,8 @@ static void handle_new_msr(struct edgeport_port *edge_port, __u8 msr)
tty = tty_port_tty_get(&edge_port->port->port);
/* handle CTS flow control */
if (tty && C_CRTSCTS(tty)) {
if (msr & EDGEPORT_MSR_CTS) {
tty->hw_stopped = 0;
if (msr & EDGEPORT_MSR_CTS)
tty_wakeup(tty);
} else {
tty->hw_stopped = 1;
}
}
tty_kref_put(tty);
}
@ -2177,7 +2173,6 @@ static void change_port_settings(struct tty_struct *tty,
dev_dbg(dev, "%s - RTS/CTS is enabled\n", __func__);
} else {
dev_dbg(dev, "%s - RTS/CTS is disabled\n", __func__);
tty->hw_stopped = 0;
restart_read(edge_port);
}

7
drivers/usb/serial/ti_usb_3410_5052.c
View File

@ -773,7 +773,6 @@ static void ti_set_termios(struct tty_struct *tty,
config->wFlags |= TI_UART_ENABLE_RTS_IN;
config->wFlags |= TI_UART_ENABLE_CTS_OUT;
} else {
tty->hw_stopped = 0;
ti_restart_read(tport, tty);
}
@ -1291,12 +1290,8 @@ static void ti_handle_new_msr(struct ti_port *tport, __u8 msr)
/* handle CTS flow control */
tty = tty_port_tty_get(&tport->tp_port->port);
if (tty && C_CRTSCTS(tty)) {
if (msr & TI_MSR_CTS) {
tty->hw_stopped = 0;
if (msr & TI_MSR_CTS)
tty_wakeup(tty);
} else {
tty->hw_stopped = 1;
}
}
tty_kref_put(tty);
}