1 files changed, 8 insertions, 2 deletions

diff --git a/include/linux/usb.h b/include/linux/usb.h
index 001629cd1a97..7454865ad148 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -475,7 +475,8 @@ struct usb3_lpm_parameters {
  * @lpm_capable: device supports LPM
  * @usb2_hw_lpm_capable: device can perform USB2 hardware LPM
  * @usb2_hw_lpm_besl_capable: device can perform USB2 hardware BESL LPM
- * @usb2_hw_lpm_enabled: USB2 hardware LPM enabled
+ * @usb2_hw_lpm_enabled: USB2 hardware LPM is enabled
+ * @usb2_hw_lpm_allowed: Userspace allows USB 2.0 LPM to be enabled
  * @usb3_lpm_enabled: USB3 hardware LPM enabled
  * @string_langid: language ID for strings
  * @product: iProduct string, if present (static)
@@ -548,6 +549,7 @@ struct usb_device {
         unsigned usb2_hw_lpm_capable:1;
         unsigned usb2_hw_lpm_besl_capable:1;
         unsigned usb2_hw_lpm_enabled:1;
+        unsigned usb2_hw_lpm_allowed:1;
         unsigned usb3_lpm_enabled:1;
         int string_langid;
 
@@ -702,7 +704,7 @@ extern int usb_alloc_streams(struct usb_interface *interface,
                 unsigned int num_streams, gfp_t mem_flags);
 
 /* Reverts a group of bulk endpoints back to not using stream IDs. */
-extern void usb_free_streams(struct usb_interface *interface,
+extern int usb_free_streams(struct usb_interface *interface,
                 struct usb_host_endpoint **eps, unsigned int num_eps,
                 gfp_t mem_flags);
 
@@ -1209,11 +1211,13 @@ struct usb_anchor {
         struct list_head urb_list;
         wait_queue_head_t wait;
         spinlock_t lock;
+        atomic_t suspend_wakeups;
         unsigned int poisoned:1;
 };
 
 static inline void init_usb_anchor(struct usb_anchor *anchor)
 {
+        memset(anchor, 0, sizeof(*anchor));
         INIT_LIST_HEAD(&anchor->urb_list);
         init_waitqueue_head(&anchor->wait);
         spin_lock_init(&anchor->lock);
@@ -1574,6 +1578,8 @@ extern void usb_kill_anchored_urbs(struct usb_anchor *anchor);
 extern void usb_poison_anchored_urbs(struct usb_anchor *anchor);
 extern void usb_unpoison_anchored_urbs(struct usb_anchor *anchor);
 extern void usb_unlink_anchored_urbs(struct usb_anchor *anchor);
+extern void usb_anchor_suspend_wakeups(struct usb_anchor *anchor);
+extern void usb_anchor_resume_wakeups(struct usb_anchor *anchor);
 extern void usb_anchor_urb(struct urb *urb, struct usb_anchor *anchor);
 extern void usb_unanchor_urb(struct urb *urb);
 extern int usb_wait_anchor_empty_timeout(struct usb_anchor *anchor,