@@ -377,7 +377,7 @@ static void async_mode(MGSLPC_INFO *info);
static void tx_timeout(struct timer_list *t);
-static int carrier_raised(struct tty_port *port);
+static bool carrier_raised(struct tty_port *port);
static void dtr_rts(struct tty_port *port, int onoff);
#if SYNCLINK_GENERIC_HDLC
@@ -2430,7 +2430,7 @@ static void mgslpc_hangup(struct tty_struct *tty)
tty_port_hangup(&info->port);
}
-static int carrier_raised(struct tty_port *port)
+static bool carrier_raised(struct tty_port *port)
{
MGSLPC_INFO *info = container_of(port, MGSLPC_INFO, port);
unsigned long flags;
@@ -2439,9 +2439,7 @@ static int carrier_raised(struct tty_port *port)
get_signals(info);
spin_unlock_irqrestore(&info->lock, flags);
- if (info->serial_signals & SerialSignal_DCD)
- return 1;
- return 0;
+ return info->serial_signals & SerialSignal_DCD;
}
static void dtr_rts(struct tty_port *port, int onoff)
@@ -526,7 +526,7 @@ static void sdio_uart_irq(struct sdio_func *func)
port->in_sdio_uart_irq = NULL;
}
-static int uart_carrier_raised(struct tty_port *tport)
+static bool uart_carrier_raised(struct tty_port *tport)
{
struct sdio_uart_port *port =
container_of(tport, struct sdio_uart_port, port);
@@ -535,9 +535,8 @@ static int uart_carrier_raised(struct tty_port *tport)
return 1;
ret = sdio_uart_get_mctrl(port);
sdio_uart_release_func(port);
- if (ret & TIOCM_CAR)
- return 1;
- return 0;
+
+ return ret & TIOCM_CAR;
}
/**
@@ -1454,7 +1454,7 @@ static const struct tty_operations serial_ops = {
.proc_show = rs_proc_show,
};
-static int amiga_carrier_raised(struct tty_port *port)
+static bool amiga_carrier_raised(struct tty_port *port)
{
return !(ciab.pra & SER_DCD);
}
@@ -501,7 +501,7 @@ static int moxa_tiocmset(struct tty_struct *tty,
static void moxa_poll(struct timer_list *);
static void moxa_set_tty_param(struct tty_struct *, const struct ktermios *);
static void moxa_shutdown(struct tty_port *);
-static int moxa_carrier_raised(struct tty_port *);
+static bool moxa_carrier_raised(struct tty_port *);
static void moxa_dtr_rts(struct tty_port *, int);
/*
* moxa board interface functions:
@@ -1432,7 +1432,7 @@ static void moxa_shutdown(struct tty_port *port)
MoxaPortFlushData(ch, 2);
}
-static int moxa_carrier_raised(struct tty_port *port)
+static bool moxa_carrier_raised(struct tty_port *port)
{
struct moxa_port *ch = container_of(port, struct moxa_port, port);
int dcd;
@@ -458,10 +458,11 @@ static void __mxser_stop_tx(struct mxser_port *info)
outb(info->IER, info->ioaddr + UART_IER);
}
-static int mxser_carrier_raised(struct tty_port *port)
+static bool mxser_carrier_raised(struct tty_port *port)
{
struct mxser_port *mp = container_of(port, struct mxser_port, port);
- return (inb(mp->ioaddr + UART_MSR) & UART_MSR_DCD)?1:0;
+
+ return inb(mp->ioaddr + UART_MSR) & UART_MSR_DCD;
}
static void mxser_dtr_rts(struct tty_port *port, int on)
@@ -3770,16 +3770,16 @@ static int gsm_modem_update(struct gsm_dlci *dlci, u8 brk)
return -EPROTONOSUPPORT;
}
-static int gsm_carrier_raised(struct tty_port *port)
+static bool gsm_carrier_raised(struct tty_port *port)
{
struct gsm_dlci *dlci = container_of(port, struct gsm_dlci, port);
struct gsm_mux *gsm = dlci->gsm;
/* Not yet open so no carrier info */
if (dlci->state != DLCI_OPEN)
- return 0;
+ return false;
if (debug & DBG_CD_ON)
- return 1;
+ return true;
/*
* Basic mode with control channel in ADM mode may not respond
@@ -3787,7 +3787,7 @@ static int gsm_carrier_raised(struct tty_port *port)
*/
if (gsm->encoding == GSM_BASIC_OPT &&
gsm->dlci[0]->mode == DLCI_MODE_ADM && !dlci->modem_rx)
- return 1;
+ return true;
return dlci->modem_rx & TIOCM_CD;
}
@@ -1859,7 +1859,7 @@ static void uart_port_shutdown(struct tty_port *port)
}
}
-static int uart_carrier_raised(struct tty_port *port)
+static bool uart_carrier_raised(struct tty_port *port)
{
struct uart_state *state = container_of(port, struct uart_state, port);
struct uart_port *uport;
@@ -1873,15 +1873,14 @@ static int uart_carrier_raised(struct tty_port *port)
* continue and not sleep
*/
if (WARN_ON(!uport))
- return 1;
+ return true;
spin_lock_irq(&uport->lock);
uart_enable_ms(uport);
mctrl = uport->ops->get_mctrl(uport);
spin_unlock_irq(&uport->lock);
uart_port_deref(uport);
- if (mctrl & TIOCM_CAR)
- return 1;
- return 0;
+
+ return mctrl & TIOCM_CAR;
}
static void uart_dtr_rts(struct tty_port *port, int raise)
@@ -3126,7 +3126,7 @@ static int tiocmset(struct tty_struct *tty,
return 0;
}
-static int carrier_raised(struct tty_port *port)
+static bool carrier_raised(struct tty_port *port)
{
unsigned long flags;
struct slgt_info *info = container_of(port, struct slgt_info, port);
@@ -3134,7 +3134,8 @@ static int carrier_raised(struct tty_port *port)
spin_lock_irqsave(&info->lock,flags);
get_gtsignals(info);
spin_unlock_irqrestore(&info->lock,flags);
- return (info->signals & SerialSignal_DCD) ? 1 : 0;
+
+ return info->signals & SerialSignal_DCD;
}
static void dtr_rts(struct tty_port *port, int on)
@@ -3162,7 +3163,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
int retval;
bool do_clocal = false;
unsigned long flags;
- int cd;
+ bool cd;
struct tty_port *port = &info->port;
DBGINFO(("%s block_til_ready\n", tty->driver->name));
@@ -444,10 +444,10 @@ EXPORT_SYMBOL_GPL(tty_port_tty_wakeup);
* to hide some internal details. This will eventually become entirely
* internal to the tty port.
*/
-int tty_port_carrier_raised(struct tty_port *port)
+bool tty_port_carrier_raised(struct tty_port *port)
{
if (port->ops->carrier_raised == NULL)
- return 1;
+ return true;
return port->ops->carrier_raised(port);
}
EXPORT_SYMBOL(tty_port_carrier_raised);
@@ -413,12 +413,11 @@ static void ch341_port_remove(struct usb_serial_port *port)
kfree(priv);
}
-static int ch341_carrier_raised(struct usb_serial_port *port)
+static bool ch341_carrier_raised(struct usb_serial_port *port)
{
struct ch341_private *priv = usb_get_serial_port_data(port);
- if (priv->msr & CH341_BIT_DCD)
- return 1;
- return 0;
+
+ return priv->msr & CH341_BIT_DCD;
}
static void ch341_dtr_rts(struct usb_serial_port *port, int on)
@@ -774,7 +774,7 @@ static bool f81232_tx_empty(struct usb_serial_port *port)
return true;
}
-static int f81232_carrier_raised(struct usb_serial_port *port)
+static bool f81232_carrier_raised(struct usb_serial_port *port)
{
u8 msr;
struct f81232_private *priv = usb_get_serial_port_data(port);
@@ -783,9 +783,7 @@ static int f81232_carrier_raised(struct usb_serial_port *port)
msr = priv->modem_status;
mutex_unlock(&priv->lock);
- if (msr & UART_MSR_DCD)
- return 1;
- return 0;
+ return msr & UART_MSR_DCD;
}
static void f81232_get_serial(struct tty_struct *tty, struct serial_struct *ss)
@@ -1050,14 +1050,11 @@ static int pl2303_tiocmget(struct tty_struct *tty)
return result;
}
-static int pl2303_carrier_raised(struct usb_serial_port *port)
+static bool pl2303_carrier_raised(struct usb_serial_port *port)
{
struct pl2303_private *priv = usb_get_serial_port_data(port);
- if (priv->line_status & UART_DCD)
- return 1;
-
- return 0;
+ return priv->line_status & UART_DCD;
}
static void pl2303_set_break(struct usb_serial_port *port, bool enable)
@@ -247,16 +247,13 @@ static void spcp8x5_set_work_mode(struct usb_serial_port *port, u16 value,
dev_err(&port->dev, "failed to set work mode: %d\n", ret);
}
-static int spcp8x5_carrier_raised(struct usb_serial_port *port)
+static bool spcp8x5_carrier_raised(struct usb_serial_port *port)
{
u8 msr;
int ret;
ret = spcp8x5_get_msr(port, &msr);
- if (ret || msr & MSR_STATUS_LINE_DCD)
- return 1;
-
- return 0;
+ return ret || msr & MSR_STATUS_LINE_DCD;
}
static void spcp8x5_dtr_rts(struct usb_serial_port *port, int on)
@@ -754,7 +754,7 @@ static struct usb_serial_driver *search_serial_device(
return NULL;
}
-static int serial_port_carrier_raised(struct tty_port *port)
+static bool serial_port_carrier_raised(struct tty_port *port)
{
struct usb_serial_port *p = container_of(port, struct usb_serial_port, port);
struct usb_serial_driver *drv = p->serial->type;
@@ -762,7 +762,7 @@ static int serial_port_carrier_raised(struct tty_port *port)
if (drv->carrier_raised)
return drv->carrier_raised(p);
/* No carrier control - don't block */
- return 1;
+ return true;
}
static void serial_port_dtr_rts(struct tty_port *port, int on)
@@ -15,7 +15,7 @@ struct tty_struct;
/**
* struct tty_port_operations -- operations on tty_port
- * @carrier_raised: return 1 if the carrier is raised on @port
+ * @carrier_raised: return true if the carrier is raised on @port
* @dtr_rts: raise the DTR line if @raise is nonzero, otherwise lower DTR
* @shutdown: called when the last close completes or a hangup finishes IFF the
* port was initialized. Do not use to free resources. Turn off the device
@@ -31,7 +31,7 @@ struct tty_struct;
* the port itself.
*/
struct tty_port_operations {
- int (*carrier_raised)(struct tty_port *port);
+ bool (*carrier_raised)(struct tty_port *port);
void (*dtr_rts)(struct tty_port *port, int raise);
void (*shutdown)(struct tty_port *port);
int (*activate)(struct tty_port *port, struct tty_struct *tty);
@@ -230,7 +230,7 @@ static inline void tty_port_set_kopened(struct tty_port *port, bool val)
struct tty_struct *tty_port_tty_get(struct tty_port *port);
void tty_port_tty_set(struct tty_port *port, struct tty_struct *tty);
-int tty_port_carrier_raised(struct tty_port *port);
+bool tty_port_carrier_raised(struct tty_port *port);
void tty_port_raise_dtr_rts(struct tty_port *port);
void tty_port_lower_dtr_rts(struct tty_port *port);
void tty_port_hangup(struct tty_port *port);
@@ -293,7 +293,7 @@ struct usb_serial_driver {
/* Called by the tty layer for port level work. There may or may not
be an attached tty at this point */
void (*dtr_rts)(struct usb_serial_port *port, int on);
- int (*carrier_raised)(struct usb_serial_port *port);
+ bool (*carrier_raised)(struct usb_serial_port *port);
/* Called by the usb serial hooks to allow the user to rework the
termios state */
void (*init_termios)(struct tty_struct *tty);
@@ -119,7 +119,7 @@ static int rfcomm_dev_activate(struct tty_port *port, struct tty_struct *tty)
}
/* we block the open until the dlc->state becomes BT_CONNECTED */
-static int rfcomm_dev_carrier_raised(struct tty_port *port)
+static bool rfcomm_dev_carrier_raised(struct tty_port *port)
{
struct rfcomm_dev *dev = container_of(port, struct rfcomm_dev, port);
Return boolean from ->carrier_raised() instead of 0 and 1. Make the return type change also to tty_port_carrier_raised() that makes the ->carrier_raised() call (+ cd variable in moxa into which its return value is stored). Also cleans up a few unnecessary constructs related to this change: return xx ? 1 : 0; -> return xx; if (xx) return 1; return 0; -> return xx; Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> --- drivers/char/pcmcia/synclink_cs.c | 8 +++----- drivers/mmc/core/sdio_uart.c | 7 +++---- drivers/tty/amiserial.c | 2 +- drivers/tty/moxa.c | 4 ++-- drivers/tty/mxser.c | 5 +++-- drivers/tty/n_gsm.c | 8 ++++---- drivers/tty/serial/serial_core.c | 9 ++++----- drivers/tty/synclink_gt.c | 7 ++++--- drivers/tty/tty_port.c | 4 ++-- drivers/usb/serial/ch341.c | 7 +++---- drivers/usb/serial/f81232.c | 6 ++---- drivers/usb/serial/pl2303.c | 7 ++----- drivers/usb/serial/spcp8x5.c | 7 ++----- drivers/usb/serial/usb-serial.c | 4 ++-- include/linux/tty_port.h | 6 +++--- include/linux/usb/serial.h | 2 +- net/bluetooth/rfcomm/tty.c | 2 +- 17 files changed, 42 insertions(+), 53 deletions(-)