slow_sane_block_input
static void slow_sane_block_input(struct net_device *dev, int count,
ei_status.block_input = slow_sane_block_input;
ei_status.block_input = slow_sane_block_input;
ei_status.block_input = slow_sane_block_input;
ei_status.block_input = slow_sane_block_input;