1 files changed, 40 insertions, 20 deletions

diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c
index 09289bb1e20f..391d169f8d07 100644
--- a/drivers/usb/gadget/composite.c
+++ b/drivers/usb/gadget/composite.c
@@ -36,7 +36,7 @@
  */
 
 /* big enough to hold our biggest descriptor */
-#define USB_BUFSIZ      512
+#define USB_BUFSIZ      1024
 
 static struct usb_composite_driver *composite;
 
@@ -85,7 +85,7 @@ MODULE_PARM_DESC(iSerialNumber, "SerialNumber string");
  * This function returns the value of the function's bind(), which is
  * zero for success else a negative errno value.
  */
-int __init usb_add_function(struct usb_configuration *config,
+int usb_add_function(struct usb_configuration *config,
                 struct usb_function *function)
 {
         int     value = -EINVAL;
@@ -215,7 +215,7 @@ int usb_function_activate(struct usb_function *function)
  * Returns the interface ID which was allocated; or -ENODEV if no
  * more interface IDs can be allocated.
  */
-int __init usb_interface_id(struct usb_configuration *config,
+int usb_interface_id(struct usb_configuration *config,
                 struct usb_function *function)
 {
         unsigned id = config->next_interface_id;
@@ -480,7 +480,7 @@ done:
  * assigns global resources including string IDs, and per-configuration
  * resources such as interface IDs and endpoints.
  */
-int __init usb_add_config(struct usb_composite_dev *cdev,
+int usb_add_config(struct usb_composite_dev *cdev,
                 struct usb_configuration *config)
 {
         int                             status = -EINVAL;
@@ -677,7 +677,7 @@ static int get_string(struct usb_composite_dev *cdev,
  * ensure that for example different functions don't wrongly assign
  * different meanings to the same identifier.
  */
-int __init usb_string_id(struct usb_composite_dev *cdev)
+int usb_string_id(struct usb_composite_dev *cdev)
 {
         if (cdev->next_string_id < 254) {
                 /* string id 0 is reserved */
@@ -898,7 +898,19 @@ static void composite_disconnect(struct usb_gadget *gadget)
 
 /*-------------------------------------------------------------------------*/
 
-static void /* __init_or_exit */
+static ssize_t composite_show_suspended(struct device *dev,
+                                        struct device_attribute *attr,
+                                        char *buf)
+{
+        struct usb_gadget *gadget = dev_to_usb_gadget(dev);
+        struct usb_composite_dev *cdev = get_gadget_data(gadget);
+
+        return sprintf(buf, "%d\n", cdev->suspended);
+}
+
+static DEVICE_ATTR(suspended, 0444, composite_show_suspended, NULL);
+
+static void
 composite_unbind(struct usb_gadget *gadget)
 {
         struct usb_composite_dev        *cdev = get_gadget_data(gadget);
@@ -944,10 +956,11 @@ composite_unbind(struct usb_gadget *gadget)
         }
         kfree(cdev);
         set_gadget_data(gadget, NULL);
+        device_remove_file(&gadget->dev, &dev_attr_suspended);
         composite = NULL;
 }
 
-static void __init
+static void
 string_override_one(struct usb_gadget_strings *tab, u8 id, const char *s)
 {
         struct usb_string               *str = tab->strings;
@@ -960,7 +973,7 @@ string_override_one(struct usb_gadget_strings *tab, u8 id, const char *s)
         }
 }
 
-static void __init
+static void
 string_override(struct usb_gadget_strings **tab, u8 id, const char *s)
 {
         while (*tab) {
@@ -969,7 +982,7 @@ string_override(struct usb_gadget_strings **tab, u8 id, const char *s)
         }
 }
 
-static int __init composite_bind(struct usb_gadget *gadget)
+static int composite_bind(struct usb_gadget *gadget)
 {
         struct usb_composite_dev        *cdev;
         int                             status = -ENOMEM;
@@ -1004,6 +1017,14 @@ static int __init composite_bind(struct usb_gadget *gadget)
          */
         usb_ep_autoconfig_reset(cdev->gadget);
 
+        /* standardized runtime overrides for device ID data */
+        if (idVendor)
+                cdev->desc.idVendor = cpu_to_le16(idVendor);
+        if (idProduct)
+                cdev->desc.idProduct = cpu_to_le16(idProduct);
+        if (bcdDevice)
+                cdev->desc.bcdDevice = cpu_to_le16(bcdDevice);
+
         /* composite gadget needs to assign strings for whole device (like
          * serial number), register function drivers, potentially update
          * power state and consumption, etc
@@ -1015,14 +1036,6 @@ static int __init composite_bind(struct usb_gadget *gadget)
         cdev->desc = *composite->dev;
         cdev->desc.bMaxPacketSize0 = gadget->ep0->maxpacket;
 
-        /* standardized runtime overrides for device ID data */
-        if (idVendor)
-                cdev->desc.idVendor = cpu_to_le16(idVendor);
-        if (idProduct)
-                cdev->desc.idProduct = cpu_to_le16(idProduct);
-        if (bcdDevice)
-                cdev->desc.bcdDevice = cpu_to_le16(bcdDevice);
-
         /* strings can't be assigned before bind() allocates the
          * releavnt identifiers
          */
@@ -1036,6 +1049,10 @@ static int __init composite_bind(struct usb_gadget *gadget)
                 string_override(composite->strings,
                         cdev->desc.iSerialNumber, iSerialNumber);
 
+        status = device_create_file(&gadget->dev, &dev_attr_suspended);
+        if (status)
+                goto fail;
+
         INFO(cdev, "%s ready\n", composite->name);
         return 0;
 
@@ -1064,6 +1081,8 @@ composite_suspend(struct usb_gadget *gadget)
         }
         if (composite->suspend)
                 composite->suspend(cdev);
+
+        cdev->suspended = 1;
 }
 
 static void
@@ -1084,6 +1103,8 @@ composite_resume(struct usb_gadget *gadget)
                                 f->resume(f);
                 }
         }
+
+        cdev->suspended = 0;
 }
 
 /*-------------------------------------------------------------------------*/
@@ -1092,7 +1113,6 @@ static struct usb_gadget_driver composite_driver = {
         .speed          = USB_SPEED_HIGH,
 
         .bind           = composite_bind,
-        /* .unbind              = __exit_p(composite_unbind), */
         .unbind         = composite_unbind,
 
         .setup          = composite_setup,
@@ -1121,7 +1141,7 @@ static struct usb_gadget_driver composite_driver = {
  * while it was binding.  That would usually be done in order to wait for
  * some userspace participation.
  */
-int __init usb_composite_register(struct usb_composite_driver *driver)
+int usb_composite_register(struct usb_composite_driver *driver)
 {
         if (!driver || !driver->dev || !driver->bind || composite)
                 return -EINVAL;
@@ -1142,7 +1162,7 @@ int __init usb_composite_register(struct usb_composite_driver *driver)
  * This function is used to unregister drivers using the composite
  * driver framework.
  */
-void /* __exit */ usb_composite_unregister(struct usb_composite_driver *driver)
+void usb_composite_unregister(struct usb_composite_driver *driver)
 {
         if (composite != driver)
                 return;