__user_ok          53 include/asm-cris/uaccess.h #define __user_ok(addr,size) (((size) <= TASK_SIZE)&&((addr) <= TASK_SIZE-(size)))
__user_ok         181 include/asm-xtensa/uaccess.h #define __user_ok(addr,size) (((size) <= TASK_SIZE)&&((addr) <= TASK_SIZE-(size)))