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USB: serial: mos7840: remove set but not used variables 'st, data1, iflag'

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Fixes gcc '-Wunused-but-set-variable' warning:

drivers/usb/serial/mos7840.c: In function 'mos7840_interrupt_callback':
drivers/usb/serial/mos7840.c:604:14: warning:
 variable 'st' set but not used [-Wunused-but-set-variable]

drivers/usb/serial/mos7840.c: In function 'mos7840_write':
drivers/usb/serial/mos7840.c:1303:17: warning:
 variable 'data1' set but not used [-Wunused-but-set-variable]

drivers/usb/serial/mos7840.c:1700:11: warning:
 variable 'iflag' set but not used [-Wunused-but-set-variable]

They are never used since introduction in commit 3f5429746d ("USB:
Moschip 7840 USB-Serial Driver")

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
This commit is contained in:
YueHaibing 2018-10-26 20:25:49 +08:00 committed by Johan Hovold
parent 548f32f594
commit 32d8a6fc5b
1 changed files with 1 additions and 6 deletions
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7
drivers/usb/serial/mos7840.c
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@ -601,7 +601,7 @@ static void mos7840_interrupt_callback(struct urb *urb)
struct usb_serial *serial;
__u16 Data;
unsigned char *data;
__u8 sp[5], st;
__u8 sp[5];
int i, rv = 0;
__u16 wval, wreg = 0;
int status = urb->status;
@ -644,7 +644,6 @@ static void mos7840_interrupt_callback(struct urb *urb)
sp[1] = (__u8) data[1];
sp[2] = (__u8) data[2];
sp[3] = (__u8) data[3];
st = (__u8) data[4];
for (i = 0; i < serial->num_ports; i++) {
mos7840_port = mos7840_get_port_private(serial->port[i]);
@ -1300,7 +1299,6 @@ static int mos7840_write(struct tty_struct *tty, struct usb_serial_port *port,
struct urb *urb;
/* __u16 Data; */
const unsigned char *current_position = data;
unsigned char *data1;
if (mos7840_port_paranoia_check(port, __func__))
return -1;
@ -1361,7 +1359,6 @@ static int mos7840_write(struct tty_struct *tty, struct usb_serial_port *port,
mos7840_bulk_out_data_callback, mos7840_port);
}
data1 = urb->transfer_buffer;
dev_dbg(&port->dev, "bulkout endpoint is %d\n", port->bulk_out_endpointAddress);
if (mos7840_port->has_led)
@ -1697,7 +1694,6 @@ static void mos7840_change_port_settings(struct tty_struct *tty,
{
int baud;
unsigned cflag;
unsigned iflag;
__u8 lData;
__u8 lParity;
__u8 lStop;
@ -1729,7 +1725,6 @@ static void mos7840_change_port_settings(struct tty_struct *tty,
lParity = LCR_PAR_NONE;
cflag = tty->termios.c_cflag;
iflag = tty->termios.c_iflag;
/* Change the number of bits */
switch (cflag & CSIZE) {