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| author | Matthew Wilcox <willy@linux.intel.com> | 2010-04-30 13:11:30 -0600 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-05-20 13:21:41 -0700 |
| commit | 1e429018b646bdf903554e92ead1cda96cc552dc (patch) | |
| tree | e57fdbc9e823d5b06659ceae6ce9850c6ab3be91 /include/linux/usb.h | |
| parent | fe54b058de9d1df5fef9e2a559651f4b7c9f04b1 (diff) | |
| download | lwn-1e429018b646bdf903554e92ead1cda96cc552dc.tar.gz lwn-1e429018b646bdf903554e92ead1cda96cc552dc.zip | |
USB: Turn interface_to_usbdev into an inline function
The stronger type-checking would have prevented a bug I had.
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'include/linux/usb.h')
| -rw-r--r-- | 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 fd7d61e58198..cf3b289a87a2 100644 --- a/include/linux/usb.h +++ b/include/linux/usb.h @@ -184,8 +184,6 @@ 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) { @@ -493,6 +491,11 @@ 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); |