Some drivers seem to use macros such as _IOR/_IOW in a way that ends up calling the sizeof() operator twice. For eg:

-#define FBIO_ATY128_GET_MIRROR	_IOR('@', 1, sizeof(__u32*))
+#define FBIO_ATY128_GET_MIRROR	_IOR('@', 1, __u32*)

from include/asm-ia64/ioctl.h (other archs are similar):

#define _IOR(type,nr,size)      _IOC(_IOC_READ,(type),(nr),sizeof(size))

While this is not a problem for native 32 bit or native 64 platforms, it is a problem for 32 bit applications running on 64 bit platforms in compatibility mode because

sizeof(sizeof(__u32*)) on a 64 bit kernel != sizeof(sizeof(__u32*)) on a 32 bit app.

The attached patch attempts to fix the instances we could find.

	-Arun