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usb: gadget: remove net2280_set_fifo_mode()

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This function has no user in my tree. It looks like it belongs to
net2280 but it somehow morphed into the dummy_hcd. So I remove it
before it spreads into more drivers.
After some digging I figured out that the only user was removed in

|commit 9079e91b5b
|Author: David Brownell <david-b@pacbell.net>
|Date:   Wed May 7 16:00:36 2008 -0700
|
|    USB: serial gadget: cleanup/reorg

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Sebastian Andrzej Siewior 2011-06-16 20:37:00 +02:00 committed by Greg Kroah-Hartman
parent d8a14a85c7
commit 4baa74fe32
2 changed files with 0 additions and 66 deletions
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10
drivers/usb/gadget/dummy_hcd.c
View file

@ -976,16 +976,6 @@ static int dummy_udc_stop(struct usb_gadget_driver *driver)
#undef is_enabled
/* just declare this in any driver that really need it */
extern int net2280_set_fifo_mode (struct usb_gadget *gadget, int mode);
int net2280_set_fifo_mode (struct usb_gadget *gadget, int mode)
{
return -ENOSYS;
}
EXPORT_SYMBOL (net2280_set_fifo_mode);
/* The gadget structure is stored inside the hcd structure and will be
* released along with it. */
static void

56
drivers/usb/gadget/net2280.c
View file

@ -1744,62 +1744,6 @@ static void set_fifo_mode (struct net2280 *dev, int mode)
list_add_tail (&dev->ep [6].ep.ep_list, &dev->gadget.ep_list);
}
/* just declare this in any driver that really need it */
extern int net2280_set_fifo_mode (struct usb_gadget *gadget, int mode);
/**
* net2280_set_fifo_mode - change allocation of fifo buffers
* @gadget: access to the net2280 device that will be updated
* @mode: 0 for default, four 1kB buffers (ep-a through ep-d);
* 1 for two 2kB buffers (ep-a and ep-b only);
* 2 for one 2kB buffer (ep-a) and two 1kB ones (ep-b, ep-c).
*
* returns zero on success, else negative errno. when this succeeds,
* the contents of gadget->ep_list may have changed.
*
* you may only call this function when endpoints a-d are all disabled.
* use it whenever extra hardware buffering can help performance, such
* as before enabling "high bandwidth" interrupt endpoints that use
* maxpacket bigger than 512 (when double buffering would otherwise
* be unavailable).
*/
int net2280_set_fifo_mode (struct usb_gadget *gadget, int mode)
{
int i;
struct net2280 *dev;
int status = 0;
unsigned long flags;
if (!gadget)
return -ENODEV;
dev = container_of (gadget, struct net2280, gadget);
spin_lock_irqsave (&dev->lock, flags);
for (i = 1; i <= 4; i++)
if (dev->ep [i].desc) {
status = -EINVAL;
break;
}
if (mode < 0 || mode > 2)
status = -EINVAL;
if (status == 0)
set_fifo_mode (dev, mode);
spin_unlock_irqrestore (&dev->lock, flags);
if (status == 0) {
if (mode == 1)
DEBUG (dev, "fifo: ep-a 2K, ep-b 2K\n");
else if (mode == 2)
DEBUG (dev, "fifo: ep-a 2K, ep-b 1K, ep-c 1K\n");
/* else all are 1K */
}
return status;
}
EXPORT_SYMBOL (net2280_set_fifo_mode);
/*-------------------------------------------------------------------------*/
/* keeping it simple:
* - one bus driver, initted first;
* - one function driver, initted second