From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Tue, 18 Aug 2015 16:57:43 +0000 (-0700)
Subject: Revert "usb: interface authorization: SysFS part of USB interface authorization"
X-Git-Tag: firefly_0821_release~176^2~1219^2~12
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=4d924d7a81627663720223b5c4330c18d8063fb6;p=firefly-linux-kernel-4.4.55.git

Revert "usb: interface authorization: SysFS part of USB interface authorization"

This reverts commit 187b3d75bbfba45a38b5d1d3656c0f11f6f6f2d0 as the
signed-off-by address is invalid.

Cc: Stefan Koch <stefan.koch10@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/usb/core/sysfs.c b/drivers/usb/core/sysfs.c
index d9ec2de6c4cf..cfc68c11c3f5 100644
--- a/drivers/usb/core/sysfs.c
+++ b/drivers/usb/core/sysfs.c
@@ -957,41 +957,6 @@ static ssize_t supports_autosuspend_show(struct device *dev,
 }
 static DEVICE_ATTR_RO(supports_autosuspend);
 
-/*
- * interface_authorized_show - show authorization status of an USB interface
- * 1 is authorized, 0 is deauthorized
- */
-static ssize_t interface_authorized_show(struct device *dev,
-		struct device_attribute *attr, char *buf)
-{
-	struct usb_interface *intf = to_usb_interface(dev);
-
-	return sprintf(buf, "%u\n", intf->authorized);
-}
-
-/*
- * interface_authorized_store - authorize or deauthorize an USB interface
- */
-static ssize_t interface_authorized_store(struct device *dev,
-		struct device_attribute *attr, const char *buf, size_t count)
-{
-	struct usb_interface *intf = to_usb_interface(dev);
-	bool val;
-
-	if (strtobool(buf, &val) != 0)
-		return -EINVAL;
-
-	if (val)
-		usb_authorize_interface(intf);
-	else
-		usb_deauthorize_interface(intf);
-
-	return count;
-}
-static struct device_attribute dev_attr_interface_authorized =
-		__ATTR(authorized, S_IRUGO | S_IWUSR,
-		interface_authorized_show, interface_authorized_store);
-
 static struct attribute *intf_attrs[] = {
 	&dev_attr_bInterfaceNumber.attr,
 	&dev_attr_bAlternateSetting.attr,
@@ -1001,7 +966,6 @@ static struct attribute *intf_attrs[] = {
 	&dev_attr_bInterfaceProtocol.attr,
 	&dev_attr_modalias.attr,
 	&dev_attr_supports_autosuspend.attr,
-	&dev_attr_interface_authorized.attr,
 	NULL,
 };
 static struct attribute_group intf_attr_grp = {