Hello Bing Zhao, The patch 5e6e3a92b9a4: "wireless: mwifiex: initial commit for Marvell mwifiex driver" from Mar 21, 2011, leads to the following static checker warning: drivers/net/wireless/marvell/mwifiex/sta_event.c:634 mwifiex_process_sta_event() warn: inconsistent indenting drivers/net/wireless/marvell/mwifiex/sta_event.c 608 case EVENT_PS_AWAKE: 609 mwifiex_dbg(adapter, EVENT, "info: EVENT: AWAKE\n"); 610 if (!adapter->pps_uapsd_mode && priv->port_open && 611 priv->media_connected && adapter->sleep_period.period) { 612 adapter->pps_uapsd_mode = true; 613 mwifiex_dbg(adapter, EVENT, 614 "event: PPS/UAPSD mode activated\n"); 615 } 616 adapter->tx_lock_flag = false; 617 if (adapter->pps_uapsd_mode && adapter->gen_null_pkt) { 618 if (mwifiex_check_last_packet_indication(priv)) { 619 if (adapter->data_sent || 620 (adapter->if_ops.is_port_ready && 621 !adapter->if_ops.is_port_ready(priv))) { 622 adapter->ps_state = PS_STATE_AWAKE; 623 adapter->pm_wakeup_card_req = false; 624 adapter->pm_wakeup_fw_try = false; 625 del_timer(&adapter->wakeup_timer); 626 break; 627 } 628 if (!mwifiex_send_null_packet 629 (priv, 630 MWIFIEX_TxPD_POWER_MGMT_NULL_PACKET | 631 MWIFIEX_TxPD_POWER_MGMT_LAST_PACKET)) 632 adapter->ps_state = 633 PS_STATE_SLEEP; 634 return 0; The PS_STATE_SLEEP line is indented one tab more than it should be. It looks like the code is buggy? Possibly curly braces were intended: if (!mwifiex_send_null_packet(priv, MWIFIEX_TxPD_POWER_MGMT_NULL_PACKET | MWIFIEX_TxPD_POWER_MGMT_LAST_PACKET)) { adapter->ps_state = PS_STATE_SLEEP; return 0; } We're right up against the 80 character limit so it's hard to be sure. 635 } 636 } 637 adapter->ps_state = PS_STATE_AWAKE; 638 adapter->pm_wakeup_card_req = false; 639 adapter->pm_wakeup_fw_try = false; 640 del_timer(&adapter->wakeup_timer); 641 642 break; 643 644 case EVENT_DEEP_SLEEP_AWAKE: regards, dan carpenter -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html