printk: remove unused code from kernel/printk.c

}

#endif

/*

 * Return the number of unread characters in the log buffer.

 */

static int log_buf_get_len(void)

{

	return logged_chars;

}

/*

 * Copy a range of characters from the log buffer.

 */

int log_buf_copy(char *dest, int idx, int len)

{

	int ret, max;

	bool took_lock = false;

	if (!oops_in_progress) {

		spin_lock_irq(&logbuf_lock);

		took_lock = true;

	}

	max = log_buf_get_len();

	if (idx < 0 || idx >= max) {

		ret = -1;

	} else {

		if (len > max)

			len = max;

		ret = len;

		idx += (log_end - max);

		while (len-- > 0)

			dest[len] = LOG_BUF(idx + len);

	}

	if (took_lock)

		spin_unlock_irq(&logbuf_lock);

	return ret;

}

/*

 * Commands to do_syslog:

 *