483 unwind_user_frame(struct frame_tail __user *tail, void *cookie,  in unwind_user_frame()  argument
491 	if (!access_ok(tail, sizeof(buftail)))  in unwind_user_frame()
495 	err = __copy_from_user_inatomic(&buftail, tail, sizeof(buftail));  in unwind_user_frame()
510 	if (tail >= buftail.fp)  in unwind_user_frame()
532 unwind_compat_user_frame(struct compat_frame_tail __user *tail, void *cookie,  in unwind_compat_user_frame()  argument
539 	if (!access_ok(tail, sizeof(buftail)))  in unwind_compat_user_frame()
543 	err = __copy_from_user_inatomic(&buftail, tail, sizeof(buftail));  in unwind_compat_user_frame()
556 	if (tail + 1 >= (struct compat_frame_tail __user *)  in unwind_compat_user_frame()
573 		struct frame_tail __user *tail;  in arch_stack_walk_user()  local
575 		tail = (struct frame_tail __user *)regs->regs[29];  in arch_stack_walk_user()
576 		while (tail && !((unsigned long)tail & 0x7))  in arch_stack_walk_user()
577 			tail = unwind_user_frame(tail, cookie, consume_entry);  in arch_stack_walk_user()
581 		struct compat_frame_tail __user *tail;  in arch_stack_walk_user()  local
583 		tail = (struct compat_frame_tail __user *)regs->compat_fp - 1;  in arch_stack_walk_user()
584 		while (tail && !((unsigned long)tail & 0x3))  in arch_stack_walk_user()
585 			tail = unwind_compat_user_frame(tail, cookie, consume_entry);  in arch_stack_walk_user()