[PATCH] Generic: Move __user cast into probe_kernel_address

Caller of probe_kernel_address shouldn't need to know that
pka is internally implemented with __get_user. So move the
__user cast into pka.

Signed-off-by: Andi Kleen <ak@suse.de>

include/linux/uaccess.h

@@ -36,7 +36,7 @@ static inline unsigned long __copy_from_user_nocache(void *to,
 		long ret;				\
 							\
 		inc_preempt_count();			\
-		ret = __get_user(retval, addr);		\
+		ret = __get_user(retval, (__force typeof(*addr) __user *)addr);\
 		dec_preempt_count();			\
 		ret;					\
 	})