kernel: remove obsolete patch adding usb_find_device_by_name

ledtrig-usbdev does not need it anymore

Signed-off-by: Felix Fietkau <nbd@nbd.name>

1 files changed, 0 insertions, 84 deletions

diff --git a/target/linux/generic/patches-4.1/820-usb_add_usb_find_device_by_name.patch b/target/linux/generic/patches-4.1/820-usb_add_usb_find_device_by_name.patch
deleted file mode 100644
index 906f0e215e..0000000000
--- a/target/linux/generic/patches-4.1/820-usb_add_usb_find_device_by_name.patch
+++ /dev/null
@@ -1,84 +0,0 @@
---- a/drivers/usb/core/usb.c
-+++ b/drivers/usb/core/usb.c
-@@ -704,6 +704,71 @@ int __usb_get_extra_descriptor(char *buf
- }
- EXPORT_SYMBOL_GPL(__usb_get_extra_descriptor);
- 
-+static struct usb_device *match_device_name(struct usb_device *dev,
-+					    const char *name)
-+{
-+	struct usb_device *ret_dev = NULL;
-+	struct usb_device *childdev = NULL;
-+	int child;
-+
-+	dev_dbg(&dev->dev, "check for name %s ...\n", name);
-+
-+	/* see if this device matches */
-+	if (strcmp(dev_name(&dev->dev), name) == 0 ) {
-+		dev_dbg(&dev->dev, "matched this device!\n");
-+		ret_dev = usb_get_dev(dev);
-+		goto exit;
-+	}
-+	/* look through all of the children of this device */
-+	usb_hub_for_each_child(dev, child, childdev) {
-+		if (childdev) {
-+			usb_lock_device(childdev);
-+			ret_dev = match_device_name(childdev, name);
-+			usb_unlock_device(childdev);
-+			if (ret_dev)
-+				goto exit;
-+		}
-+	}
-+exit:
-+	return ret_dev;
-+}
-+
-+/**
-+ * usb_find_device_by_name - find a specific usb device in the system
-+ * @name: the name of the device to find
-+ *
-+ * Returns a pointer to a struct usb_device if such a specified usb
-+ * device is present in the system currently.  The usage count of the
-+ * device will be incremented if a device is found.  Make sure to call
-+ * usb_put_dev() when the caller is finished with the device.
-+ *
-+ * If a device with the specified bus id is not found, NULL is returned.
-+ */
-+struct usb_device *usb_find_device_by_name(const char *name)
-+{
-+	struct list_head *buslist;
-+	struct usb_bus *bus;
-+	struct usb_device *dev = NULL;
-+
-+	mutex_lock(&usb_bus_list_lock);
-+	for (buslist = usb_bus_list.next;
-+	     buslist != &usb_bus_list;
-+	     buslist = buslist->next) {
-+		bus = container_of(buslist, struct usb_bus, bus_list);
-+		if (!bus->root_hub)
-+			continue;
-+		usb_lock_device(bus->root_hub);
-+		dev = match_device_name(bus->root_hub, name);
-+		usb_unlock_device(bus->root_hub);
-+		if (dev)
-+			goto exit;
-+	}
-+exit:
-+	mutex_unlock(&usb_bus_list_lock);
-+	return dev;
-+}
-+EXPORT_SYMBOL_GPL(usb_find_device_by_name);
-+
- /**
-  * usb_alloc_coherent - allocate dma-consistent buffer for URB_NO_xxx_DMA_MAP
-  * @dev: device the buffer will be used with
---- a/include/linux/usb.h
-+++ b/include/linux/usb.h
-@@ -721,6 +721,7 @@ static inline bool usb_device_no_sg_cons
- 	return udev && udev->bus && udev->bus->no_sg_constraint;
- }
- 
-+extern struct usb_device *usb_find_device_by_name(const char *name);
- 
- /*-------------------------------------------------------------------------*/
-