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| author | Johan Hovold <jhovold@gmail.com> | 2009-10-07 20:05:05 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-10-09 13:52:05 -0700 |
| commit | 63b0061246b54b849da8f189ae048e8110d8ce7d (patch) | |
| tree | 320ca2576aada4126afb2219337ab86deff475a7 | |
| parent | 0cbd81a9f6bac734ac3266687bf027af1e395270 (diff) | |
| download | linux-3.10-63b0061246b54b849da8f189ae048e8110d8ce7d.tar.gz linux-3.10-63b0061246b54b849da8f189ae048e8110d8ce7d.tar.bz2 linux-3.10-63b0061246b54b849da8f189ae048e8110d8ce7d.zip | |
USB: ftdi_sio: remove unused rx_byte counter
Remove unused rx_byte counter which is never exposed as noted by Alan
Cox.
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | drivers/usb/serial/ftdi_sio.c | 13 |
1 files changed, 0 insertions, 13 deletions
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index 0ac2c2f540c..bfb23d64bc6 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -81,7 +81,6 @@ struct ftdi_private { struct delayed_work rx_work; struct usb_serial_port *port; int rx_processed; - unsigned long rx_bytes; __u16 interface; /* FT2232C, FT2232H or FT4232H port interface (0 for FT232/245) */ @@ -1699,9 +1698,6 @@ static int ftdi_open(struct tty_struct *tty, struct usb_serial_port *port) spin_lock_irqsave(&priv->tx_lock, flags); priv->tx_bytes = 0; spin_unlock_irqrestore(&priv->tx_lock, flags); - spin_lock_irqsave(&priv->rx_lock, flags); - priv->rx_bytes = 0; - spin_unlock_irqrestore(&priv->rx_lock, flags); write_latency_timer(port); @@ -2014,8 +2010,6 @@ static void ftdi_read_bulk_callback(struct urb *urb) struct usb_serial_port *port = urb->context; struct tty_struct *tty; struct ftdi_private *priv; - unsigned long countread; - unsigned long flags; int status = urb->status; if (urb->number_of_packets > 0) { @@ -2054,13 +2048,6 @@ static void ftdi_read_bulk_callback(struct urb *urb) goto out; } - /* count data bytes, but not status bytes */ - countread = urb->actual_length; - countread -= 2 * DIV_ROUND_UP(countread, priv->max_packet_size); - spin_lock_irqsave(&priv->rx_lock, flags); - priv->rx_bytes += countread; - spin_unlock_irqrestore(&priv->rx_lock, flags); - ftdi_process_read(&priv->rx_work.work); out: tty_kref_put(tty); |