USB: remove drivers/usb/core/drivers.c as it's no longer used.

drivers/usb/core/drivers.c

-/*
- * drivers.c
- * (C) Copyright 1999 Randy Dunlap.
- * (C) Copyright 1999, 2000 Thomas Sailer <sailer@ife.ee.ethz.ch>. (proc file per device)
- * (C) Copyright 1999 Deti Fliegl (new USB architecture)
- *
- * $id$
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- *
- *************************************************************
- *
- * 1999-12-16: Thomas Sailer <sailer@ife.ee.ethz.ch>
- *   Converted the whole proc stuff to real
- *   read methods. Now not the whole device list needs to fit
- *   into one page, only the device list for one bus.
- *   Added a poll method to /proc/bus/usb/devices, to wake
- *   up an eventual usbd
- * 2000-01-04: Thomas Sailer <sailer@ife.ee.ethz.ch>
- *   Turned into its own filesystem
- *
- * $Id: drivers.c,v 1.3 2000/01/11 13:58:24 tom Exp $
- */
-
-#include <linux/fs.h>
-#include <linux/gfp.h>
-#include <linux/usb.h>
-#include <linux/usbdevice_fs.h>
-#include <linux/smp_lock.h>
-#include <asm/uaccess.h>
-
-/*****************************************************************/
-
-/*
- * Dump usb_driver_list.
- *
- * We now walk the list of registered USB drivers.
- */
-static ssize_t usb_driver_read(struct file *file, char *buf, size_t nbytes, loff_t *ppos)
-{
-	struct list_head *tmp = usb_driver_list.next;
-	char *page, *start, *end;
-	ssize_t ret = 0;
-	unsigned int pos, len;
-
-	if (*ppos < 0)
-		return -EINVAL;
-	if (nbytes <= 0)
-		return 0;
-	if (!access_ok(VERIFY_WRITE, buf, nbytes))
-		return -EFAULT;
-        if (!(page = (char*) __get_free_page(GFP_KERNEL)))
-                return -ENOMEM;
-	start = page;
-	end = page + (PAGE_SIZE - 100);
-	pos = *ppos;
-	lock_kernel(); /* else drivers might be unloaded */
-	for (; tmp != &usb_driver_list; tmp = tmp->next) {
-		struct usb_driver *driver = list_entry(tmp, struct usb_driver, driver_list);
-		int minor = driver->fops ? driver->minor : -1;
-		if (minor == -1)
-			start += sprintf (start, "         %s\n", driver->name);
-		else if (driver->num_minors == 1)
-			start += sprintf (start, "    %3d: %s\n", minor, driver->name);
-		else
-			start += sprintf (start, "%3d-%3d: %s\n", minor, minor + driver->num_minors - 1, driver->name);
-		if (start > end) {
-			start += sprintf(start, "(truncated)\n");
-			break;
-		}
-	}
-	unlock_kernel();
-	if (start == page)
-		start += sprintf(start, "(none)\n");
-	len = start - page;
-	if (len > pos) {
-		len -= pos;
-		if (len > nbytes)
-			len = nbytes;
-		ret = len;
-		if (copy_to_user(buf, page + pos, len))
-			ret = -EFAULT;
-		else
-			*ppos += len;
-	}
-	free_page((unsigned long)page);
-	return ret;
-}
-
-static loff_t usb_driver_lseek(struct file * file, loff_t offset, int orig)
-{
-	loff_t ret;
-
-	lock_kernel();
-	switch (orig) {
-	case 0:
-		file->f_pos = offset;
-		ret = file->f_pos;
-		break;
-	case 1:
-		file->f_pos += offset;
-		ret = file->f_pos;
-		break;
-	case 2:
-	default:
-		ret = -EINVAL;
-	}
-	unlock_kernel();
-	return ret;
-}
-
-struct file_operations usbdevfs_drivers_fops = {
-	.llseek =	usb_driver_lseek,
-	.read =		usb_driver_read,
-};