[PATCH] hiddev: simplify 32bit ioctl compatibilty

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hiddev has both entries in fs/compat_ioctl.c and its own
compat_ioctl() handler. Remove both and use the new generic_compat_ioctl
helper instead.

Signed-off-by: Arnd Bergmann <[email protected]>
Index: linux-2.6/drivers/hid/hidraw.c
===================================================================
--- linux-2.6.orig/drivers/hid/hidraw.c
+++ linux-2.6/drivers/hid/hidraw.c
@@ -268,6 +268,7 @@ static const struct file_operations hidr
 	.open =         hidraw_open,
 	.release =      hidraw_release,
 	.ioctl =        hidraw_ioctl,
+	.compat_ioctl = generic_compat_ioctl,
 };
 
 void hidraw_report_event(struct hid_device *hid, u8 *data, int len)
Index: linux-2.6/drivers/hid/usbhid/hiddev.c
===================================================================
--- linux-2.6.orig/drivers/hid/usbhid/hiddev.c
+++ linux-2.6/drivers/hid/usbhid/hiddev.c
@@ -739,14 +739,6 @@ inval:
 	return -EINVAL;
 }
 
-#ifdef CONFIG_COMPAT
-static long hiddev_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
-{
-	struct inode *inode = file->f_path.dentry->d_inode;
-	return hiddev_ioctl(inode, file, cmd, compat_ptr(arg));
-}
-#endif
-
 static const struct file_operations hiddev_fops = {
 	.owner =	THIS_MODULE,
 	.read =		hiddev_read,
@@ -756,9 +748,7 @@ static const struct file_operations hidd
 	.release =	hiddev_release,
 	.ioctl =	hiddev_ioctl,
 	.fasync =	hiddev_fasync,
-#ifdef CONFIG_COMPAT
-	.compat_ioctl	= hiddev_compat_ioctl,
-#endif
+	.compat_ioctl = generic_compat_ioctl,
 };
 
 static struct usb_class_driver hiddev_class = {
Index: linux-2.6/fs/compat_ioctl.c
===================================================================
--- linux-2.6.orig/fs/compat_ioctl.c
+++ linux-2.6/fs/compat_ioctl.c
@@ -102,8 +102,6 @@
 #include <linux/filter.h>
 #include <linux/pktcdvd.h>
 
-#include <linux/hiddev.h>
-
 #include <linux/dvb/audio.h>
 #include <linux/dvb/dmx.h>
 #include <linux/dvb/frontend.h>
@@ -2575,23 +2573,6 @@ COMPATIBLE_IOCTL(SIOCSIWPOWER)
 COMPATIBLE_IOCTL(SIOCGIWPOWER)
 COMPATIBLE_IOCTL(SIOCSIWAUTH)
 COMPATIBLE_IOCTL(SIOCGIWAUTH)
-/* hiddev */
-COMPATIBLE_IOCTL(HIDIOCGVERSION)
-COMPATIBLE_IOCTL(HIDIOCAPPLICATION)
-COMPATIBLE_IOCTL(HIDIOCGDEVINFO)
-COMPATIBLE_IOCTL(HIDIOCGSTRING)
-COMPATIBLE_IOCTL(HIDIOCINITREPORT)
-COMPATIBLE_IOCTL(HIDIOCGREPORT)
-COMPATIBLE_IOCTL(HIDIOCSREPORT)
-COMPATIBLE_IOCTL(HIDIOCGREPORTINFO)
-COMPATIBLE_IOCTL(HIDIOCGFIELDINFO)
-COMPATIBLE_IOCTL(HIDIOCGUSAGE)
-COMPATIBLE_IOCTL(HIDIOCSUSAGE)
-COMPATIBLE_IOCTL(HIDIOCGUCODE)
-COMPATIBLE_IOCTL(HIDIOCGFLAG)
-COMPATIBLE_IOCTL(HIDIOCSFLAG)
-COMPATIBLE_IOCTL(HIDIOCGCOLLECTIONINDEX)
-COMPATIBLE_IOCTL(HIDIOCGCOLLECTIONINFO)
 /* dvb */
 COMPATIBLE_IOCTL(AUDIO_STOP)
 COMPATIBLE_IOCTL(AUDIO_PLAY)
-
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