return count;
}
-static int
+static unsigned int
srmcons_write_room(struct tty_struct *tty)
{
return 512;
return 1;
}
-static int nfcon_tty_write_room(struct tty_struct *tty)
+static unsigned int nfcon_tty_write_room(struct tty_struct *tty)
{
return 64;
}
return count;
}
-static int pdc_console_tty_write_room(struct tty_struct *tty)
+static unsigned int pdc_console_tty_write_room(struct tty_struct *tty)
{
return 32768; /* no limit, no buffer used */
}
*
* Should be called while holding line->lock (this does not modify data).
*/
-static int write_room(struct line *line)
+static unsigned int write_room(struct line *line)
{
int n;
return n - 1;
}
-int line_write_room(struct tty_struct *tty)
+unsigned int line_write_room(struct tty_struct *tty)
{
struct line *line = tty->driver_data;
unsigned long flags;
- int room;
+ unsigned int room;
spin_lock_irqsave(&line->lock, flags);
room = write_room(line);
extern int line_chars_in_buffer(struct tty_struct *tty);
extern void line_flush_buffer(struct tty_struct *tty);
extern void line_flush_chars(struct tty_struct *tty);
-extern int line_write_room(struct tty_struct *tty);
+extern unsigned int line_write_room(struct tty_struct *tty);
extern void line_throttle(struct tty_struct *tty);
extern void line_unthrottle(struct tty_struct *tty);
{
}
-static int rs_write_room(struct tty_struct *tty)
+static unsigned int rs_write_room(struct tty_struct *tty)
{
/* Let's say iss can always accept 2K characters.. */
return 2 * 1024;
/* Return the count of free bytes in transmit buffer
*/
-static int mgslpc_write_room(struct tty_struct *tty)
+static unsigned int mgslpc_write_room(struct tty_struct *tty)
{
MGSLPC_INFO *info = (MGSLPC_INFO *)tty->driver_data;
int ret;
/*
* TTY operations write_room function.
*/
-static int tpk_write_room(struct tty_struct *tty)
+static unsigned int tpk_write_room(struct tty_struct *tty)
{
return TPK_MAX_ROOM;
}
return char_copied;
}
-static int ipoctal_write_room(struct tty_struct *tty)
+static unsigned int ipoctal_write_room(struct tty_struct *tty)
{
struct ipoctal_channel *channel = tty->driver_data;
handle_minor_recv(mp);
}
-static int capinc_tty_write_room(struct tty_struct *tty)
+static unsigned int capinc_tty_write_room(struct tty_struct *tty)
{
struct capiminor *mp = tty->driver_data;
- int room;
+ unsigned int room;
room = CAPINC_MAX_SENDQUEUE-skb_queue_len(&mp->outqueue);
room *= CAPI_MAX_BLKSIZE;
- pr_debug("capinc_tty_write_room = %d\n", room);
+ pr_debug("capinc_tty_write_room = %u\n", room);
return room;
}
return count;
}
-static int bcm_vk_tty_write_room(struct tty_struct *tty)
+static unsigned int bcm_vk_tty_write_room(struct tty_struct *tty)
{
struct bcm_vk *vk = dev_get_drvdata(tty->dev);
return ret;
}
-static int sdio_uart_write_room(struct tty_struct *tty)
+static unsigned int sdio_uart_write_room(struct tty_struct *tty)
{
struct sdio_uart_port *port = tty->driver_data;
return FIFO_SIZE - kfifo_len(&port->xmit_fifo);
}
/* how much room is there for writing */
-static int hso_serial_write_room(struct tty_struct *tty)
+static unsigned int hso_serial_write_room(struct tty_struct *tty)
{
struct hso_serial *serial = tty->driver_data;
- int room;
+ unsigned int room;
unsigned long flags;
spin_lock_irqsave(&serial->serial_lock, flags);
/*
* Returns the amount of free space in the output buffer.
*/
-static int tty3215_write_room(struct tty_struct *tty)
+static unsigned int tty3215_write_room(struct tty_struct *tty)
{
struct raw3215_info *raw = tty->driver_data;
* a string of newlines. Every newline creates a new message which
* needs 82 bytes.
*/
-static int
+static unsigned int
sclp_tty_write_room (struct tty_struct *tty)
{
unsigned long flags;
struct list_head *l;
- int count;
+ unsigned int count;
spin_lock_irqsave(&sclp_tty_lock, flags);
count = 0;
* to change as output buffers get emptied, or if the output flow
* control is acted.
*/
-static int
+static unsigned int
sclp_vt220_write_room(struct tty_struct *tty)
{
unsigned long flags;
struct list_head *l;
- int count;
+ unsigned int count;
spin_lock_irqsave(&sclp_vt220_lock, flags);
count = 0;
/*
* We always have room.
*/
-static int
+static unsigned int
tty3270_write_room(struct tty_struct *tty)
{
return INT_MAX;
return (n < 0) ? 0 : n;
}
-static int fwtty_write_room(struct tty_struct *tty)
+static unsigned int fwtty_write_room(struct tty_struct *tty)
{
struct fwtty_port *port = tty->driver_data;
- int n;
+ unsigned int n;
spin_lock_bh(&port->lock);
n = dma_fifo_avail(&port->tx_fifo);
spin_unlock_bh(&port->lock);
- fwtty_dbg(port, "%d\n", n);
+ fwtty_dbg(port, "%u\n", n);
return n;
}
return len;
}
-static int gdm_tty_write_room(struct tty_struct *tty)
+static unsigned int gdm_tty_write_room(struct tty_struct *tty)
{
struct gdm *gdm = tty->driver_data;
return count;
}
-static int gb_tty_write_room(struct tty_struct *tty)
+static unsigned int gb_tty_write_room(struct tty_struct *tty)
{
struct gb_tty *gb_tty = tty->driver_data;
unsigned long flags;
return ret;
}
-static int rs_write_room(struct tty_struct *tty)
+static unsigned int rs_write_room(struct tty_struct *tty)
{
struct serial_state *info = tty->driver_data;
* how much write room the driver can guarantee will be sent OR BUFFERED. This
* driver MUST honor the return value.
*/
-static int ehv_bc_tty_write_room(struct tty_struct *ttys)
+static unsigned int ehv_bc_tty_write_room(struct tty_struct *ttys)
{
struct ehv_bc_data *bc = ttys->driver_data;
unsigned long flags;
- int count;
+ unsigned int count;
spin_lock_irqsave(&bc->lock, flags);
count = CIRC_SPACE(bc->head, bc->tail, BUF_SIZE);
return count;
}
-static int goldfish_tty_write_room(struct tty_struct *tty)
+static unsigned int goldfish_tty_write_room(struct tty_struct *tty)
{
return 0x10000;
}
* how much write room the driver can guarantee will be sent OR BUFFERED. This
* driver MUST honor the return value.
*/
-static int hvc_write_room(struct tty_struct *tty)
+static unsigned int hvc_write_room(struct tty_struct *tty)
{
struct hvc_struct *hp = tty->driver_data;
* absolutely WILL BUFFER if we can't send it. This driver MUST honor the
* return value, hence the reason for hvcs_struct buffering.
*/
-static int hvcs_write_room(struct tty_struct *tty)
+static unsigned int hvcs_write_room(struct tty_struct *tty)
{
struct hvcs_struct *hvcsd = tty->driver_data;
spin_unlock_irqrestore(&hp->lock, flags);
}
-static int hvsi_write_room(struct tty_struct *tty)
+static unsigned int hvsi_write_room(struct tty_struct *tty)
{
struct hvsi_struct *hp = tty->driver_data;
* will see there is no room in outbuf and return.
*/
while ((count > 0) && (hvsi_write_room(tty) > 0)) {
- int chunksize = min(count, hvsi_write_room(tty));
+ int chunksize = min_t(int, count, hvsi_write_room(tty));
BUG_ON(hp->n_outbuf < 0);
memcpy(hp->outbuf + hp->n_outbuf, source, chunksize);
return count;
}
-static int ipw_write_room(struct tty_struct *linux_tty)
+static unsigned int ipw_write_room(struct tty_struct *linux_tty)
{
struct ipw_tty *tty = linux_tty->driver_data;
int room;
return total;
}
-static int mips_ejtag_fdc_tty_write_room(struct tty_struct *tty)
+static unsigned int mips_ejtag_fdc_tty_write_room(struct tty_struct *tty)
{
struct mips_ejtag_fdc_tty_port *dport = tty->driver_data;
struct mips_ejtag_fdc_tty *priv = dport->driver;
- int room;
+ unsigned int room;
/* Report the space in the xmit buffer */
spin_lock(&dport->xmit_lock);
static int moxa_open(struct tty_struct *, struct file *);
static void moxa_close(struct tty_struct *, struct file *);
static int moxa_write(struct tty_struct *, const unsigned char *, int);
-static int moxa_write_room(struct tty_struct *);
+static unsigned int moxa_write_room(struct tty_struct *);
static void moxa_flush_buffer(struct tty_struct *);
static int moxa_chars_in_buffer(struct tty_struct *);
static void moxa_set_termios(struct tty_struct *, struct ktermios *);
static int MoxaPortReadData(struct moxa_port *);
static int MoxaPortTxQueue(struct moxa_port *);
static int MoxaPortRxQueue(struct moxa_port *);
-static int MoxaPortTxFree(struct moxa_port *);
+static unsigned int MoxaPortTxFree(struct moxa_port *);
static void MoxaPortTxDisable(struct moxa_port *);
static void MoxaPortTxEnable(struct moxa_port *);
static int moxa_get_serial_info(struct tty_struct *, struct serial_struct *);
return len;
}
-static int moxa_write_room(struct tty_struct *tty)
+static unsigned int moxa_write_room(struct tty_struct *tty)
{
struct moxa_port *ch;
return (wptr - rptr) & mask;
}
-static int MoxaPortTxFree(struct moxa_port *port)
+static unsigned int MoxaPortTxFree(struct moxa_port *port)
{
void __iomem *ofsAddr = port->tableAddr;
u16 rptr, wptr, mask;
spin_unlock_irqrestore(&info->slock, flags);
}
-static int mxser_write_room(struct tty_struct *tty)
+static unsigned int mxser_write_room(struct tty_struct *tty)
{
struct mxser_port *info = tty->driver_data;
int ret;
return sent;
}
-static int gsmtty_write_room(struct tty_struct *tty)
+static unsigned int gsmtty_write_room(struct tty_struct *tty)
{
struct gsm_dlci *dlci = tty->driver_data;
if (dlci->state == DLCI_CLOSED)
* If the port is unplugged report lots of room and let the bits
* dribble away so we don't block anything.
*/
-static int ntty_write_room(struct tty_struct *tty)
+static unsigned int ntty_write_room(struct tty_struct *tty)
{
struct port *port = tty->driver_data;
- int room = 4096;
+ unsigned int room = 4096;
const struct nozomi *dc = get_dc_by_tty(tty);
if (dc)
* the other device.
*/
-static int pty_write_room(struct tty_struct *tty)
+static unsigned int pty_write_room(struct tty_struct *tty)
{
if (tty->flow.stopped)
return 0;
tty_port_hangup(&priv->port);
}
-static int kgdb_nmi_tty_write_room(struct tty_struct *tty)
+static unsigned int kgdb_nmi_tty_write_room(struct tty_struct *tty)
{
/* Actually, we can handle any amount as we use polled writes. */
return 2048;
return ret;
}
-static int uart_write_room(struct tty_struct *tty)
+static unsigned int uart_write_room(struct tty_struct *tty)
{
struct uart_state *state = tty->driver_data;
struct uart_port *port;
unsigned long flags;
- int ret;
+ unsigned int ret;
port = uart_port_lock(state, flags);
ret = uart_circ_chars_free(&state->xmit);
DBGINFO(("%s wait_until_sent exit\n", info->device_name));
}
-static int write_room(struct tty_struct *tty)
+static unsigned int write_room(struct tty_struct *tty)
{
struct slgt_info *info = tty->driver_data;
- int ret;
+ unsigned int ret;
if (sanity_check(info, tty->name, "write_room"))
return 0;
ret = (info->tx_active) ? 0 : HDLC_MAX_FRAME_SIZE;
- DBGINFO(("%s write_room=%d\n", info->device_name, ret));
+ DBGINFO(("%s write_room=%u\n", info->device_name, ret));
return ret;
}
* returned and data may be lost as there will be no flow control.
*/
-int tty_write_room(struct tty_struct *tty)
+unsigned int tty_write_room(struct tty_struct *tty)
{
if (tty->ops->write_room)
return tty->ops->write_room(tty);
return count;
}
-static int ttynull_write_room(struct tty_struct *tty)
+static unsigned int ttynull_write_room(struct tty_struct *tty)
{
return 65536;
}
return total_sent ? total_sent : rv;
}
-static int vcc_write_room(struct tty_struct *tty)
+static unsigned int vcc_write_room(struct tty_struct *tty)
{
struct vcc_port *port;
- u64 num;
+ unsigned int num;
port = vcc_get_ne(tty->index);
if (unlikely(!port)) {
return do_con_write(tty, &ch, 1);
}
-static int con_write_room(struct tty_struct *tty)
+static unsigned int con_write_room(struct tty_struct *tty)
{
if (tty->flow.stopped)
return 0;
return count;
}
-static int acm_tty_write_room(struct tty_struct *tty)
+static unsigned int acm_tty_write_room(struct tty_struct *tty)
{
struct acm *acm = tty->driver_data;
/*
spin_unlock_irqrestore(&port->port_lock, flags);
}
-static int gs_write_room(struct tty_struct *tty)
+static unsigned int gs_write_room(struct tty_struct *tty)
{
struct gs_port *port = tty->driver_data;
unsigned long flags;
- int room = 0;
+ unsigned int room = 0;
spin_lock_irqsave(&port->port_lock, flags);
if (port->port_usb)
room = kfifo_avail(&port->port_write_buf);
spin_unlock_irqrestore(&port->port_lock, flags);
- pr_vdebug("gs_write_room: (%d,%p) room=%d\n",
+ pr_vdebug("gs_write_room: (%d,%p) room=%u\n",
port->port_num, tty, room);
return room;
spin_unlock_irqrestore(&port->port_lock, flags);
}
-static int dbc_tty_write_room(struct tty_struct *tty)
+static unsigned int dbc_tty_write_room(struct tty_struct *tty)
{
struct dbc_port *port = tty->driver_data;
unsigned long flags;
- int room = 0;
+ unsigned int room;
spin_lock_irqsave(&port->port_lock, flags);
room = kfifo_avail(&port->write_fifo);
return retval;
}
-static int serial_write_room(struct tty_struct *tty)
+static unsigned int serial_write_room(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
extern int tty_send_xchar(struct tty_struct *tty, char ch);
extern int tty_put_char(struct tty_struct *tty, unsigned char c);
extern int tty_chars_in_buffer(struct tty_struct *tty);
-extern int tty_write_room(struct tty_struct *tty);
+extern unsigned int tty_write_room(struct tty_struct *tty);
extern void tty_driver_flush_buffer(struct tty_struct *tty);
extern void tty_throttle(struct tty_struct *tty);
extern void tty_unthrottle(struct tty_struct *tty);
*
* Note: Do not call this function directly, call tty_driver_flush_chars
*
- * int (*write_room)(struct tty_struct *tty);
+ * unsigned int (*write_room)(struct tty_struct *tty);
*
* This routine returns the numbers of characters the tty driver
* will accept for queuing to be written. This number is subject
const unsigned char *buf, int count);
int (*put_char)(struct tty_struct *tty, unsigned char ch);
void (*flush_chars)(struct tty_struct *tty);
- int (*write_room)(struct tty_struct *tty);
+ unsigned int (*write_room)(struct tty_struct *tty);
int (*chars_in_buffer)(struct tty_struct *tty);
int (*ioctl)(struct tty_struct *tty,
unsigned int cmd, unsigned long arg);
return sent;
}
-static int rfcomm_tty_write_room(struct tty_struct *tty)
+static unsigned int rfcomm_tty_write_room(struct tty_struct *tty)
{
struct rfcomm_dev *dev = (struct rfcomm_dev *) tty->driver_data;
int room = 0;