USB: serial: ftdi_sio: drop unnecessary urb_ variable prefixes
authorJohan Hovold <johan@kernel.org>
Fri, 18 May 2018 13:25:49 +0000 (15:25 +0200)
committerJohan Hovold <johan@kernel.org>
Mon, 21 May 2018 08:04:26 +0000 (10:04 +0200)
Drop urb_ prefixes from value and index variables used in control
requests.

Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
drivers/usb/serial/ftdi_sio.c

index 0d24da03a4a311bbc6e7ab0a530931ddf500ecac..3d7f181e7e2afb7397bcc3a7115222cf80aa85a9 100644 (file)
@@ -54,10 +54,9 @@ struct ftdi_private {
        int custom_divisor;     /* custom_divisor kludge, this is for
                                   baud_base (different from what goes to the
                                   chip!) */
-       u16 last_set_data_urb_value;
-                               /* the last data state set - needed for doing
-                                * a break
-                                */
+       u16 last_set_data_value; /* the last data state set - needed for doing
+                                 * a break
+                                 */
        int flags;              /* some ASYNC_xxxx flags are supported */
        unsigned long last_dtr_rts;     /* saved modem control outputs */
        char prev_status;        /* Used for TIOCMIWAIT */
@@ -1195,7 +1194,7 @@ static int update_mctrl(struct usb_serial_port *port, unsigned int set,
 {
        struct ftdi_private *priv = usb_get_serial_port_data(port);
        struct device *dev = &port->dev;
-       unsigned urb_value;
+       unsigned value;
        int rv;
 
        if (((set | clear) & (TIOCM_DTR | TIOCM_RTS)) == 0) {
@@ -1204,20 +1203,20 @@ static int update_mctrl(struct usb_serial_port *port, unsigned int set,
        }
 
        clear &= ~set;  /* 'set' takes precedence over 'clear' */
-       urb_value = 0;
+       value = 0;
        if (clear & TIOCM_DTR)
-               urb_value |= FTDI_SIO_SET_DTR_LOW;
+               value |= FTDI_SIO_SET_DTR_LOW;
        if (clear & TIOCM_RTS)
-               urb_value |= FTDI_SIO_SET_RTS_LOW;
+               value |= FTDI_SIO_SET_RTS_LOW;
        if (set & TIOCM_DTR)
-               urb_value |= FTDI_SIO_SET_DTR_HIGH;
+               value |= FTDI_SIO_SET_DTR_HIGH;
        if (set & TIOCM_RTS)
-               urb_value |= FTDI_SIO_SET_RTS_HIGH;
+               value |= FTDI_SIO_SET_RTS_HIGH;
        rv = usb_control_msg(port->serial->dev,
                               usb_sndctrlpipe(port->serial->dev, 0),
                               FTDI_SIO_SET_MODEM_CTRL_REQUEST,
                               FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE,
-                              urb_value, priv->interface,
+                              value, priv->interface,
                               NULL, 0, WDR_TIMEOUT);
        if (rv < 0) {
                dev_dbg(dev, "%s Error from MODEM_CTRL urb: DTR %s, RTS %s\n",
@@ -1346,26 +1345,26 @@ static u32 get_ftdi_divisor(struct tty_struct *tty,
 static int change_speed(struct tty_struct *tty, struct usb_serial_port *port)
 {
        struct ftdi_private *priv = usb_get_serial_port_data(port);
-       u16 urb_value;
-       u16 urb_index;
-       u32 urb_index_value;
+       u16 value;
+       u16 index;
+       u32 index_value;
        int rv;
 
-       urb_index_value = get_ftdi_divisor(tty, port);
-       urb_value = (u16)urb_index_value;
-       urb_index = (u16)(urb_index_value >> 16);
+       index_value = get_ftdi_divisor(tty, port);
+       value = (u16)index_value;
+       index = (u16)(index_value >> 16);
        if ((priv->chip_type == FT2232C) || (priv->chip_type == FT2232H) ||
                (priv->chip_type == FT4232H) || (priv->chip_type == FT232H)) {
                /* Probably the BM type needs the MSB of the encoded fractional
                 * divider also moved like for the chips above. Any infos? */
-               urb_index = (u16)((urb_index << 8) | priv->interface);
+               index = (u16)((index << 8) | priv->interface);
        }
 
        rv = usb_control_msg(port->serial->dev,
                            usb_sndctrlpipe(port->serial->dev, 0),
                            FTDI_SIO_SET_BAUDRATE_REQUEST,
                            FTDI_SIO_SET_BAUDRATE_REQUEST_TYPE,
-                           urb_value, urb_index,
+                           value, index,
                            NULL, 0, WDR_SHORT_TIMEOUT);
        return rv;
 }
@@ -2140,29 +2139,29 @@ static void ftdi_break_ctl(struct tty_struct *tty, int break_state)
 {
        struct usb_serial_port *port = tty->driver_data;
        struct ftdi_private *priv = usb_get_serial_port_data(port);
-       u16 urb_value;
+       u16 value;
 
        /* break_state = -1 to turn on break, and 0 to turn off break */
        /* see drivers/char/tty_io.c to see it used */
-       /* last_set_data_urb_value NEVER has the break bit set in it */
+       /* last_set_data_value NEVER has the break bit set in it */
 
        if (break_state)
-               urb_value = priv->last_set_data_urb_value | FTDI_SIO_SET_BREAK;
+               value = priv->last_set_data_value | FTDI_SIO_SET_BREAK;
        else
-               urb_value = priv->last_set_data_urb_value;
+               value = priv->last_set_data_value;
 
        if (usb_control_msg(port->serial->dev,
                        usb_sndctrlpipe(port->serial->dev, 0),
                        FTDI_SIO_SET_DATA_REQUEST,
                        FTDI_SIO_SET_DATA_REQUEST_TYPE,
-                       urb_value , priv->interface,
+                       value , priv->interface,
                        NULL, 0, WDR_TIMEOUT) < 0) {
                dev_err(&port->dev, "%s FAILED to enable/disable break state (state was %d)\n",
                        __func__, break_state);
        }
 
        dev_dbg(&port->dev, "%s break state is %d - urb is %d\n", __func__,
-               break_state, urb_value);
+               break_state, value);
 
 }
 
@@ -2192,7 +2191,7 @@ static void ftdi_set_termios(struct tty_struct *tty,
        struct ftdi_private *priv = usb_get_serial_port_data(port);
        struct ktermios *termios = &tty->termios;
        unsigned int cflag = termios->c_cflag;
-       u16 urb_value; /* will hold the new flags */
+       u16 value;
 
        /* Added for xon/xoff support */
        unsigned int iflag = termios->c_iflag;
@@ -2258,44 +2257,44 @@ static void ftdi_set_termios(struct tty_struct *tty,
 no_skip:
        /* Set number of data bits, parity, stop bits */
 
-       urb_value = 0;
-       urb_value |= (cflag & CSTOPB ? FTDI_SIO_SET_DATA_STOP_BITS_2 :
-                     FTDI_SIO_SET_DATA_STOP_BITS_1);
+       value = 0;
+       value |= (cflag & CSTOPB ? FTDI_SIO_SET_DATA_STOP_BITS_2 :
+                       FTDI_SIO_SET_DATA_STOP_BITS_1);
        if (cflag & PARENB) {
                if (cflag & CMSPAR)
-                       urb_value |= cflag & PARODD ?
-                                    FTDI_SIO_SET_DATA_PARITY_MARK :
-                                    FTDI_SIO_SET_DATA_PARITY_SPACE;
+                       value |= cflag & PARODD ?
+                                       FTDI_SIO_SET_DATA_PARITY_MARK :
+                                       FTDI_SIO_SET_DATA_PARITY_SPACE;
                else
-                       urb_value |= cflag & PARODD ?
-                                    FTDI_SIO_SET_DATA_PARITY_ODD :
-                                    FTDI_SIO_SET_DATA_PARITY_EVEN;
+                       value |= cflag & PARODD ?
+                                       FTDI_SIO_SET_DATA_PARITY_ODD :
+                                       FTDI_SIO_SET_DATA_PARITY_EVEN;
        } else {
-               urb_value |= FTDI_SIO_SET_DATA_PARITY_NONE;
+               value |= FTDI_SIO_SET_DATA_PARITY_NONE;
        }
        switch (cflag & CSIZE) {
        case CS5:
                dev_dbg(ddev, "Setting CS5 quirk\n");
                break;
        case CS7:
-               urb_value |= 7;
+               value |= 7;
                dev_dbg(ddev, "Setting CS7\n");
                break;
        default:
        case CS8:
-               urb_value |= 8;
+               value |= 8;
                dev_dbg(ddev, "Setting CS8\n");
                break;
        }
 
        /* This is needed by the break command since it uses the same command
           - but is or'ed with this value  */
-       priv->last_set_data_urb_value = urb_value;
+       priv->last_set_data_value = value;
 
        if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
                            FTDI_SIO_SET_DATA_REQUEST,
                            FTDI_SIO_SET_DATA_REQUEST_TYPE,
-                           urb_value , priv->interface,
+                           value , priv->interface,
                            NULL, 0, WDR_SHORT_TIMEOUT) < 0) {
                dev_err(ddev, "%s FAILED to set databits/stopbits/parity\n",
                        __func__);
@@ -2354,13 +2353,13 @@ no_c_cflag_changes:
                         */
                        vstart = termios->c_cc[VSTART];
                        vstop = termios->c_cc[VSTOP];
-                       urb_value = (vstop << 8) | (vstart);
+                       value = (vstop << 8) | (vstart);
 
                        if (usb_control_msg(dev,
                                            usb_sndctrlpipe(dev, 0),
                                            FTDI_SIO_SET_FLOW_CTRL_REQUEST,
                                            FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
-                                           urb_value , (FTDI_SIO_XON_XOFF_HS
+                                           value , (FTDI_SIO_XON_XOFF_HS
                                                         | priv->interface),
                                            NULL, 0, WDR_TIMEOUT) < 0) {
                                dev_err(&port->dev, "urb failed to set to "