> From: Rashika Kheria
> Include header file include/linux/usb.h in include/linux/usb/hcd.h
> because structures usb_device, usb_host_config and usb_interface have
> their definitions in include/linux/usb.h.
>
> This eliminates the following warning in include/linux/usb/hcd.h:
> include/linux/usb/hcd.h:311:44: warning: ‘struct usb_device’ declared inside
> parameter list [enabled
> by default]
> include/linux/usb/hcd.h:412:10: warning: ‘struct usb_host_config’ declared
> inside parameter list
> [enabled by default]
> include/linux/usb/hcd.h:614:9: warning: ‘struct usb_interface’ declared
> inside parameter list [enabled
> by default]
All it is necessary to do is add a declaration of the struct before the
function definition.
There is no need to include the definition of the structure.
It is a shame that gcc doesn't defer this warning to any call site
(where an incorrect type would get passed).
David
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