Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik...

[sfrench/cifs-2.6.git] / drivers / usb / net / gl620a.c

diff --git a/drivers/usb/net/gl620a.c b/drivers/usb/net/gl620a.c
index a3242be21959561504431d9004415d25ff37b2cc..a6f0f4d934dfd854f6a72550eb9c3b776bc08229 100644 (file)
--- a/drivers/usb/net/gl620a.c
+++ b/drivers/usb/net/gl620a.c
@@ -79,160 +79,6 @@ struct gl_header {
        struct gl_packet        packets;
 };
 
-#ifdef GENELINK_ACK
-
-// FIXME:  this code is incomplete, not debugged; it doesn't
-// handle interrupts correctly; it should use the generic
-// status IRQ code (which didn't exist back in 2001).
-
-struct gl_priv {
-       struct urb      *irq_urb;
-       char            irq_buf [INTERRUPT_BUFSIZE];
-};
-
-static inline int gl_control_write(struct usbnet *dev, u8 request, u16 value)
-{
-       int retval;
-
-       retval = usb_control_msg(dev->udev,
-                     usb_sndctrlpipe(dev->udev, 0),
-                     request,
-                     USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
-                     value,
-                     0,                        // index
-                     0,                        // data buffer
-                     0,                        // size
-                     USB_CTRL_SET_TIMEOUT);
-       return retval;
-}
-
-static void gl_interrupt_complete(struct urb *urb)
-{
-       int status = urb->status;
-
-       switch (status) {
-       case 0:
-               /* success */
-               break;
-       case -ECONNRESET:
-       case -ENOENT:
-       case -ESHUTDOWN:
-               /* this urb is terminated, clean up */
-               dbg("%s - urb shutting down with status: %d",
-                               __FUNCTION__, status);
-               return;
-       default:
-               dbg("%s - nonzero urb status received: %d",
-                               __FUNCTION__, urb->status);
-       }
-
-       status = usb_submit_urb(urb, GFP_ATOMIC);
-       if (status)
-               err("%s - usb_submit_urb failed with result %d",
-                    __FUNCTION__, status);
-}
-
-static int gl_interrupt_read(struct usbnet *dev)
-{
-       struct gl_priv  *priv = dev->priv_data;
-       int             retval;
-
-       // issue usb interrupt read
-       if (priv && priv->irq_urb) {
-               // submit urb
-               if ((retval = usb_submit_urb(priv->irq_urb, GFP_KERNEL)) != 0)
-                       dbg("gl_interrupt_read: submit fail - %X...", retval);
-               else
-                       dbg("gl_interrupt_read: submit success...");
-       }
-
-       return 0;
-}
-
-// check whether another side is connected
-static int genelink_check_connect(struct usbnet *dev)
-{
-       int                     retval;
-
-       dbg("genelink_check_connect...");
-
-       // detect whether another side is connected
-       if ((retval = gl_control_write(dev, GENELINK_CONNECT_WRITE, 0)) != 0) {
-               dbg("%s: genelink_check_connect write fail - %X",
-                       dev->net->name, retval);
-               return retval;
-       }
-
-       // usb interrupt read to ack another side
-       if ((retval = gl_interrupt_read(dev)) != 0) {
-               dbg("%s: genelink_check_connect read fail - %X",
-                       dev->net->name, retval);
-               return retval;
-       }
-
-       dbg("%s: genelink_check_connect read success", dev->net->name);
-       return 0;
-}
-
-// allocate and initialize the private data for genelink
-static int genelink_init(struct usbnet *dev)
-{
-       struct gl_priv *priv;
-
-       // allocate the private data structure
-       if ((priv = kmalloc(sizeof *priv, GFP_KERNEL)) == 0) {
-               dbg("%s: cannot allocate private data per device",
-                       dev->net->name);
-               return -ENOMEM;
-       }
-
-       // allocate irq urb
-       if ((priv->irq_urb = usb_alloc_urb(0, GFP_KERNEL)) == 0) {
-               dbg("%s: cannot allocate private irq urb per device",
-                       dev->net->name);
-               kfree(priv);
-               return -ENOMEM;
-       }
-
-       // fill irq urb
-       usb_fill_int_urb(priv->irq_urb, dev->udev,
-               usb_rcvintpipe(dev->udev, GENELINK_INTERRUPT_PIPE),
-               priv->irq_buf, INTERRUPT_BUFSIZE,
-               gl_interrupt_complete, 0,
-               GENELINK_INTERRUPT_INTERVAL);
-
-       // set private data pointer
-       dev->priv_data = priv;
-
-       return 0;
-}
-
-// release the private data
-static int genelink_free(struct usbnet *dev)
-{
-       struct gl_priv  *priv = dev->priv_data;
-
-       if (!priv)
-               return 0;
-
-// FIXME:  can't cancel here; it's synchronous, and
-// should have happened earlier in any case (interrupt
-// handling needs to be generic)
-
-       // cancel irq urb first
-       usb_kill_urb(priv->irq_urb);
-
-       // free irq urb
-       usb_free_urb(priv->irq_urb);
-
-       // free the private data structure
-       kfree(priv);
-
-       return 0;
-}
-
-#endif
-
 static int genelink_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
 {
        struct gl_header        *header;