FILTER_DROP
if (dfs->action == FILTER_DROP)
case FILTER_DROP:
FW_FILTER_WR_DROP_V(f->fs.action == FILTER_DROP) |
fs->action = FILTER_DROP;
fs->action = FILTER_DROP;
ret = wl1271_acx_default_rx_filter_enable(wl, 1, FILTER_DROP);