From: Matthew Wilcox <willy@xxxxxxxxxxxxxxx>
The stronger type-checking would have prevented a bug I had.
Signed-off-by: Matthew Wilcox <willy@xxxxxxxxxxxxxxx>
---
include/linux/usb.h | 7 +++++--
1 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/include/linux/usb.h b/include/linux/usb.h
index a7ecbf3..599ac15 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -197,8 +197,6 @@ struct usb_interface {
struct work_struct reset_ws; /* for resets in atomic context */
};
#define to_usb_interface(d) container_of(d, struct usb_interface, dev)
-#define interface_to_usbdev(intf) \
- container_of(intf->dev.parent, struct usb_device, dev)
static inline void *usb_get_intfdata(struct usb_interface *intf)
{
@@ -506,6 +504,11 @@ struct usb_device {
};
#define to_usb_device(d) container_of(d, struct usb_device, dev)
+static inline struct usb_device *interface_to_usbdev(struct usb_interface *intf)
+{
+ return to_usb_device(intf->dev.parent);
+}
+
extern struct usb_device *usb_get_dev(struct usb_device *dev);
extern void usb_put_dev(struct usb_device *dev);
--
1.7.0
--
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