If xhci.h is included without include/usb.h, the compiler complains like follows: warning: 'struct devrequest' declared inside parameter list
We have two options to teach the compiler that devrequest is a structure:
[1] Declare "struct devrequest;" in xhci.h
[2] Include <include/usb.h> from xhci.h
This commit takes [1] because nothing else in xhci.h depends on include/usb.h. [2] would require the compiler additional header parsing.
Signed-off-by: Masahiro Yamada yamada.masahiro@socionext.com ---
Changes in v2: - Rephrase git-log
drivers/usb/host/xhci.h | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 2afa386..16dd61a 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -1252,6 +1252,8 @@ void xhci_acknowledge_event(struct xhci_ctrl *ctrl); union xhci_trb *xhci_wait_for_event(struct xhci_ctrl *ctrl, trb_type expected); int xhci_bulk_tx(struct usb_device *udev, unsigned long pipe, int length, void *buffer); + +struct devrequest; int xhci_ctrl_tx(struct usb_device *udev, unsigned long pipe, struct devrequest *req, int length, void *buffer); int xhci_check_maxpacket(struct usb_device *udev);