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iwlagn: rename all the mac80211 callback functions

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Use the same calling style for all the mac80211 callback functions

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Wey-Yi Guy 2011-10-10 07:27:11 -07:00 committed by John W. Linville
parent 770c72c481
commit ade4c649a0
12 changed files with 63 additions and 56 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/net/wireless/iwlwifi/iwl-5000.c
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@ -239,7 +239,7 @@ static int iwl5000_hw_channel_switch(struct iwl_priv *priv,
{ {
/* /*
* MULTI-FIXME * MULTI-FIXME
* See iwl_mac_channel_switch. * See iwlagn_mac_channel_switch.
*/ */
struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
struct iwl5000_channel_switch_cmd cmd; struct iwl5000_channel_switch_cmd cmd;

2
drivers/net/wireless/iwlwifi/iwl-6000.c
View File

@ -187,7 +187,7 @@ static int iwl6000_hw_channel_switch(struct iwl_priv *priv,
{ {
/* /*
* MULTI-FIXME * MULTI-FIXME
* See iwl_mac_channel_switch. * See iwlagn_mac_channel_switch.
*/ */
struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
struct iwl6000_channel_switch_cmd cmd; struct iwl6000_channel_switch_cmd cmd;

56
drivers/net/wireless/iwlwifi/iwl-agn.c
View File

@ -565,7 +565,7 @@ struct iwlagn_ucode_capabilities {
}; };
static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context); static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context);
static int iwl_mac_setup_register(struct iwl_priv *priv, static int iwlagn_mac_setup_register(struct iwl_priv *priv,
struct iwlagn_ucode_capabilities *capa); struct iwlagn_ucode_capabilities *capa);
#define UCODE_EXPERIMENTAL_INDEX 100 #define UCODE_EXPERIMENTAL_INDEX 100
@ -1136,7 +1136,7 @@ static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context)
* *
* 9. Setup and register with mac80211 and debugfs * 9. Setup and register with mac80211 and debugfs
**************************************************/ **************************************************/
err = iwl_mac_setup_register(priv, &ucode_capa); err = iwlagn_mac_setup_register(priv, &ucode_capa);
if (err) if (err)
goto out_unbind; goto out_unbind;
@ -1642,7 +1642,7 @@ iwlagn_iface_combinations_p2p[] = {
* Not a mac80211 entry point function, but it fits in with all the * Not a mac80211 entry point function, but it fits in with all the
* other mac80211 functions grouped here. * other mac80211 functions grouped here.
*/ */
static int iwl_mac_setup_register(struct iwl_priv *priv, static int iwlagn_mac_setup_register(struct iwl_priv *priv,
struct iwlagn_ucode_capabilities *capa) struct iwlagn_ucode_capabilities *capa)
{ {
int ret; int ret;
@ -2761,7 +2761,7 @@ static void iwlagn_disable_roc_work(struct work_struct *work)
mutex_unlock(&priv->shrd->mutex); mutex_unlock(&priv->shrd->mutex);
} }
static int iwl_mac_remain_on_channel(struct ieee80211_hw *hw, static int iwlagn_mac_remain_on_channel(struct ieee80211_hw *hw,
struct ieee80211_channel *channel, struct ieee80211_channel *channel,
enum nl80211_channel_type channel_type, enum nl80211_channel_type channel_type,
int duration) int duration)
@ -2825,7 +2825,7 @@ static int iwl_mac_remain_on_channel(struct ieee80211_hw *hw,
return err; return err;
} }
static int iwl_mac_cancel_remain_on_channel(struct ieee80211_hw *hw) static int iwlagn_mac_cancel_remain_on_channel(struct ieee80211_hw *hw)
{ {
struct iwl_priv *priv = hw->priv; struct iwl_priv *priv = hw->priv;
@ -2842,8 +2842,10 @@ static int iwl_mac_cancel_remain_on_channel(struct ieee80211_hw *hw)
return 0; return 0;
} }
static int iwl_mac_tx_sync(struct ieee80211_hw *hw, struct ieee80211_vif *vif, static int iwlagn_mac_tx_sync(struct ieee80211_hw *hw,
const u8 *bssid, enum ieee80211_tx_sync_type type) struct ieee80211_vif *vif,
const u8 *bssid,
enum ieee80211_tx_sync_type type)
{ {
struct iwl_priv *priv = hw->priv; struct iwl_priv *priv = hw->priv;
struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
@ -2890,7 +2892,7 @@ static int iwl_mac_tx_sync(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
return ret; return ret;
} }
static void iwl_mac_finish_tx_sync(struct ieee80211_hw *hw, static void iwlagn_mac_finish_tx_sync(struct ieee80211_hw *hw,
struct ieee80211_vif *vif, struct ieee80211_vif *vif,
const u8 *bssid, const u8 *bssid,
enum ieee80211_tx_sync_type type) enum ieee80211_tx_sync_type type)
@ -3067,7 +3069,7 @@ static void iwl_uninit_drv(struct iwl_priv *priv)
#endif #endif
} }
static void iwl_mac_rssi_callback(struct ieee80211_hw *hw, static void iwlagn_mac_rssi_callback(struct ieee80211_hw *hw,
enum ieee80211_rssi_event rssi_event) enum ieee80211_rssi_event rssi_event)
{ {
struct iwl_priv *priv = hw->priv; struct iwl_priv *priv = hw->priv;
@ -3092,7 +3094,7 @@ static void iwl_mac_rssi_callback(struct ieee80211_hw *hw,
IWL_DEBUG_MAC80211(priv, "leave\n"); IWL_DEBUG_MAC80211(priv, "leave\n");
} }
static int iwl_mac_set_tim(struct ieee80211_hw *hw, static int iwlagn_mac_set_tim(struct ieee80211_hw *hw,
struct ieee80211_sta *sta, bool set) struct ieee80211_sta *sta, bool set)
{ {
struct iwl_priv *priv = hw->priv; struct iwl_priv *priv = hw->priv;
@ -3110,32 +3112,32 @@ struct ieee80211_ops iwlagn_hw_ops = {
.suspend = iwlagn_mac_suspend, .suspend = iwlagn_mac_suspend,
.resume = iwlagn_mac_resume, .resume = iwlagn_mac_resume,
#endif #endif
.add_interface = iwl_mac_add_interface, .add_interface = iwlagn_mac_add_interface,
.remove_interface = iwl_mac_remove_interface, .remove_interface = iwlagn_mac_remove_interface,
.change_interface = iwl_mac_change_interface, .change_interface = iwlagn_mac_change_interface,
.config = iwlagn_mac_config, .config = iwlagn_mac_config,
.configure_filter = iwlagn_configure_filter, .configure_filter = iwlagn_configure_filter,
.set_key = iwlagn_mac_set_key, .set_key = iwlagn_mac_set_key,
.update_tkip_key = iwlagn_mac_update_tkip_key, .update_tkip_key = iwlagn_mac_update_tkip_key,
.set_rekey_data = iwlagn_mac_set_rekey_data, .set_rekey_data = iwlagn_mac_set_rekey_data,
.conf_tx = iwl_mac_conf_tx, .conf_tx = iwlagn_mac_conf_tx,
.bss_info_changed = iwlagn_bss_info_changed, .bss_info_changed = iwlagn_bss_info_changed,
.ampdu_action = iwlagn_mac_ampdu_action, .ampdu_action = iwlagn_mac_ampdu_action,
.hw_scan = iwl_mac_hw_scan, .hw_scan = iwlagn_mac_hw_scan,
.sta_notify = iwlagn_mac_sta_notify, .sta_notify = iwlagn_mac_sta_notify,
.sta_add = iwlagn_mac_sta_add, .sta_add = iwlagn_mac_sta_add,
.sta_remove = iwl_mac_sta_remove, .sta_remove = iwlagn_mac_sta_remove,
.channel_switch = iwlagn_mac_channel_switch, .channel_switch = iwlagn_mac_channel_switch,
.flush = iwlagn_mac_flush, .flush = iwlagn_mac_flush,
.tx_last_beacon = iwl_mac_tx_last_beacon, .tx_last_beacon = iwlagn_mac_tx_last_beacon,
.remain_on_channel = iwl_mac_remain_on_channel, .remain_on_channel = iwlagn_mac_remain_on_channel,
.cancel_remain_on_channel = iwl_mac_cancel_remain_on_channel, .cancel_remain_on_channel = iwlagn_mac_cancel_remain_on_channel,
.rssi_callback = iwl_mac_rssi_callback, .rssi_callback = iwlagn_mac_rssi_callback,
CFG80211_TESTMODE_CMD(iwl_testmode_cmd) CFG80211_TESTMODE_CMD(iwlagn_mac_testmode_cmd)
CFG80211_TESTMODE_DUMP(iwl_testmode_dump) CFG80211_TESTMODE_DUMP(iwlagn_mac_testmode_dump)
.tx_sync = iwl_mac_tx_sync, .tx_sync = iwlagn_mac_tx_sync,
.finish_tx_sync = iwl_mac_finish_tx_sync, .finish_tx_sync = iwlagn_mac_finish_tx_sync,
.set_tim = iwl_mac_set_tim, .set_tim = iwlagn_mac_set_tim,
}; };
static u32 iwl_hw_detect(struct iwl_priv *priv) static u32 iwl_hw_detect(struct iwl_priv *priv)
@ -3378,7 +3380,7 @@ void __devexit iwl_remove(struct iwl_priv * priv)
iwl_dbgfs_unregister(priv); iwl_dbgfs_unregister(priv);
/* ieee80211_unregister_hw call wil cause iwl_mac_stop to /* ieee80211_unregister_hw call wil cause iwlagn_mac_stop to
* to be called and iwl_down since we are removing the device * to be called and iwl_down since we are removing the device
* we need to set STATUS_EXIT_PENDING bit. * we need to set STATUS_EXIT_PENDING bit.
*/ */
@ -3404,7 +3406,7 @@ void __devexit iwl_remove(struct iwl_priv * priv)
/*netif_stop_queue(dev); */ /*netif_stop_queue(dev); */
flush_workqueue(priv->shrd->workqueue); flush_workqueue(priv->shrd->workqueue);
/* ieee80211_unregister_hw calls iwl_mac_stop, which flushes /* ieee80211_unregister_hw calls iwlagn_mac_stop, which flushes
* priv->shrd->workqueue... so we can't take down the workqueue * priv->shrd->workqueue... so we can't take down the workqueue
* until now... */ * until now... */
destroy_workqueue(priv->shrd->workqueue); destroy_workqueue(priv->shrd->workqueue);

14
drivers/net/wireless/iwlwifi/iwl-agn.h
View File

@ -252,20 +252,22 @@ extern int iwlagn_init_alive_start(struct iwl_priv *priv);
extern int iwl_alive_start(struct iwl_priv *priv); extern int iwl_alive_start(struct iwl_priv *priv);
/* svtool */ /* svtool */
#ifdef CONFIG_IWLWIFI_DEVICE_SVTOOL #ifdef CONFIG_IWLWIFI_DEVICE_SVTOOL
extern int iwl_testmode_cmd(struct ieee80211_hw *hw, void *data, int len); extern int iwlagn_mac_testmode_cmd(struct ieee80211_hw *hw, void *data,
extern int iwl_testmode_dump(struct ieee80211_hw *hw, struct sk_buff *skb, int len);
struct netlink_callback *cb, extern int iwlagn_mac_testmode_dump(struct ieee80211_hw *hw,
void *data, int len); struct sk_buff *skb,
struct netlink_callback *cb,
void *data, int len);
extern void iwl_testmode_init(struct iwl_priv *priv); extern void iwl_testmode_init(struct iwl_priv *priv);
extern void iwl_testmode_cleanup(struct iwl_priv *priv); extern void iwl_testmode_cleanup(struct iwl_priv *priv);
#else #else
static inline static inline
int iwl_testmode_cmd(struct ieee80211_hw *hw, void *data, int len) int iwlagn_mac_testmode_cmd(struct ieee80211_hw *hw, void *data, int len)
{ {
return -ENOSYS; return -ENOSYS;
} }
static inline static inline
int iwl_testmode_dump(struct ieee80211_hw *hw, struct sk_buff *skb, int iwlagn_mac_testmode_dump(struct ieee80211_hw *hw, struct sk_buff *skb,
struct netlink_callback *cb, struct netlink_callback *cb,
void *data, int len) void *data, int len)
{ {

16
drivers/net/wireless/iwlwifi/iwl-core.c
View File

@ -804,7 +804,7 @@ void iwl_chswitch_done(struct iwl_priv *priv, bool is_success)
{ {
/* /*
* MULTI-FIXME * MULTI-FIXME
* See iwl_mac_channel_switch. * See iwlagn_mac_channel_switch.
*/ */
struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
@ -1123,7 +1123,7 @@ int iwl_send_statistics_request(struct iwl_priv *priv, u8 flags, bool clear)
&statistics_cmd); &statistics_cmd);
} }
int iwl_mac_conf_tx(struct ieee80211_hw *hw, int iwlagn_mac_conf_tx(struct ieee80211_hw *hw,
struct ieee80211_vif *vif, u16 queue, struct ieee80211_vif *vif, u16 queue,
const struct ieee80211_tx_queue_params *params) const struct ieee80211_tx_queue_params *params)
{ {
@ -1170,7 +1170,7 @@ int iwl_mac_conf_tx(struct ieee80211_hw *hw,
return 0; return 0;
} }
int iwl_mac_tx_last_beacon(struct ieee80211_hw *hw) int iwlagn_mac_tx_last_beacon(struct ieee80211_hw *hw)
{ {
struct iwl_priv *priv = hw->priv; struct iwl_priv *priv = hw->priv;
@ -1223,7 +1223,8 @@ static int iwl_setup_interface(struct iwl_priv *priv,
return 0; return 0;
} }
int iwl_mac_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) int iwlagn_mac_add_interface(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{ {
struct iwl_priv *priv = hw->priv; struct iwl_priv *priv = hw->priv;
struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
@ -1319,7 +1320,7 @@ static void iwl_teardown_interface(struct iwl_priv *priv,
priv->bt_traffic_load = priv->last_bt_traffic_load; priv->bt_traffic_load = priv->last_bt_traffic_load;
} }
void iwl_mac_remove_interface(struct ieee80211_hw *hw, void iwlagn_mac_remove_interface(struct ieee80211_hw *hw,
struct ieee80211_vif *vif) struct ieee80211_vif *vif)
{ {
struct iwl_priv *priv = hw->priv; struct iwl_priv *priv = hw->priv;
@ -1651,8 +1652,9 @@ int iwl_force_reset(struct iwl_priv *priv, int mode, bool external)
return 0; return 0;
} }
int iwl_mac_change_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif, int iwlagn_mac_change_interface(struct ieee80211_hw *hw,
enum nl80211_iftype newtype, bool newp2p) struct ieee80211_vif *vif,
enum nl80211_iftype newtype, bool newp2p)
{ {
struct iwl_priv *priv = hw->priv; struct iwl_priv *priv = hw->priv;
struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif); struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif);

12
drivers/net/wireless/iwlwifi/iwl-core.h
View File

@ -236,10 +236,10 @@ struct iwl_cfg {
* L i b * * L i b *
***************************/ ***************************/
int iwl_mac_conf_tx(struct ieee80211_hw *hw, int iwlagn_mac_conf_tx(struct ieee80211_hw *hw,
struct ieee80211_vif *vif, u16 queue, struct ieee80211_vif *vif, u16 queue,
const struct ieee80211_tx_queue_params *params); const struct ieee80211_tx_queue_params *params);
int iwl_mac_tx_last_beacon(struct ieee80211_hw *hw); int iwlagn_mac_tx_last_beacon(struct ieee80211_hw *hw);
void iwl_set_rxon_hwcrypto(struct iwl_priv *priv, struct iwl_rxon_context *ctx, void iwl_set_rxon_hwcrypto(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
int hw_decrypt); int hw_decrypt);
int iwl_check_rxon_cmd(struct iwl_priv *priv, struct iwl_rxon_context *ctx); int iwl_check_rxon_cmd(struct iwl_priv *priv, struct iwl_rxon_context *ctx);
@ -259,11 +259,11 @@ bool iwl_is_ht40_tx_allowed(struct iwl_priv *priv,
void iwl_connection_init_rx_config(struct iwl_priv *priv, void iwl_connection_init_rx_config(struct iwl_priv *priv,
struct iwl_rxon_context *ctx); struct iwl_rxon_context *ctx);
void iwl_set_rate(struct iwl_priv *priv); void iwl_set_rate(struct iwl_priv *priv);
int iwl_mac_add_interface(struct ieee80211_hw *hw, int iwlagn_mac_add_interface(struct ieee80211_hw *hw,
struct ieee80211_vif *vif); struct ieee80211_vif *vif);
void iwl_mac_remove_interface(struct ieee80211_hw *hw, void iwlagn_mac_remove_interface(struct ieee80211_hw *hw,
struct ieee80211_vif *vif); struct ieee80211_vif *vif);
int iwl_mac_change_interface(struct ieee80211_hw *hw, int iwlagn_mac_change_interface(struct ieee80211_hw *hw,
struct ieee80211_vif *vif, struct ieee80211_vif *vif,
enum nl80211_iftype newtype, bool newp2p); enum nl80211_iftype newtype, bool newp2p);
int iwl_cmd_echo_test(struct iwl_priv *priv); int iwl_cmd_echo_test(struct iwl_priv *priv);
@ -322,7 +322,7 @@ void iwl_init_scan_params(struct iwl_priv *priv);
int iwl_scan_cancel(struct iwl_priv *priv); int iwl_scan_cancel(struct iwl_priv *priv);
void iwl_scan_cancel_timeout(struct iwl_priv *priv, unsigned long ms); void iwl_scan_cancel_timeout(struct iwl_priv *priv, unsigned long ms);
void iwl_force_scan_end(struct iwl_priv *priv); void iwl_force_scan_end(struct iwl_priv *priv);
int iwl_mac_hw_scan(struct ieee80211_hw *hw, int iwlagn_mac_hw_scan(struct ieee80211_hw *hw,
struct ieee80211_vif *vif, struct ieee80211_vif *vif,
struct cfg80211_scan_request *req); struct cfg80211_scan_request *req);
void iwl_internal_short_hw_scan(struct iwl_priv *priv); void iwl_internal_short_hw_scan(struct iwl_priv *priv);

2
drivers/net/wireless/iwlwifi/iwl-rx.c
View File

@ -154,7 +154,7 @@ static int iwl_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb,
struct iwl_csa_notification *csa = &(pkt->u.csa_notif); struct iwl_csa_notification *csa = &(pkt->u.csa_notif);
/* /*
* MULTI-FIXME * MULTI-FIXME
* See iwl_mac_channel_switch. * See iwlagn_mac_channel_switch.
*/ */
struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
struct iwl_rxon_cmd *rxon = (void *)&ctx->active; struct iwl_rxon_cmd *rxon = (void *)&ctx->active;

2
drivers/net/wireless/iwlwifi/iwl-scan.c
View File

@ -940,7 +940,7 @@ int __must_check iwl_scan_initiate(struct iwl_priv *priv,
return 0; return 0;
} }
int iwl_mac_hw_scan(struct ieee80211_hw *hw, int iwlagn_mac_hw_scan(struct ieee80211_hw *hw,
struct ieee80211_vif *vif, struct ieee80211_vif *vif,
struct cfg80211_scan_request *req) struct cfg80211_scan_request *req)
{ {

2
drivers/net/wireless/iwlwifi/iwl-sta.c
View File

@ -815,7 +815,7 @@ int iwl_send_lq_cmd(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
return ret; return ret;
} }
int iwl_mac_sta_remove(struct ieee80211_hw *hw, int iwlagn_mac_sta_remove(struct ieee80211_hw *hw,
struct ieee80211_vif *vif, struct ieee80211_vif *vif,
struct ieee80211_sta *sta) struct ieee80211_sta *sta)
{ {

2
drivers/net/wireless/iwlwifi/iwl-sta.h
View File

@ -52,7 +52,7 @@ int iwl_add_station_common(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
struct ieee80211_sta *sta, u8 *sta_id_r); struct ieee80211_sta *sta, u8 *sta_id_r);
int iwl_remove_station(struct iwl_priv *priv, const u8 sta_id, int iwl_remove_station(struct iwl_priv *priv, const u8 sta_id,
const u8 *addr); const u8 *addr);
int iwl_mac_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif, int iwlagn_mac_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
struct ieee80211_sta *sta); struct ieee80211_sta *sta);
u8 iwl_prep_station(struct iwl_priv *priv, struct iwl_rxon_context *ctx, u8 iwl_prep_station(struct iwl_priv *priv, struct iwl_rxon_context *ctx,

4
drivers/net/wireless/iwlwifi/iwl-sv-open.c
View File

@ -641,7 +641,7 @@ static int iwl_testmode_ownership(struct ieee80211_hw *hw, struct nlattr **tb)
* @data: pointer to user space message * @data: pointer to user space message
* @len: length in byte of @data * @len: length in byte of @data
*/ */
int iwl_testmode_cmd(struct ieee80211_hw *hw, void *data, int len) int iwlagn_mac_testmode_cmd(struct ieee80211_hw *hw, void *data, int len)
{ {
struct nlattr *tb[IWL_TM_ATTR_MAX]; struct nlattr *tb[IWL_TM_ATTR_MAX];
struct iwl_priv *priv = hw->priv; struct iwl_priv *priv = hw->priv;
@ -706,7 +706,7 @@ int iwl_testmode_cmd(struct ieee80211_hw *hw, void *data, int len)
return result; return result;
} }
int iwl_testmode_dump(struct ieee80211_hw *hw, struct sk_buff *skb, int iwlagn_mac_testmode_dump(struct ieee80211_hw *hw, struct sk_buff *skb,
struct netlink_callback *cb, struct netlink_callback *cb,
void *data, int len) void *data, int len)
{ {

5
drivers/net/wireless/iwlwifi/iwl-trans-pcie.c
View File

@ -1372,8 +1372,9 @@ static int iwl_trans_pcie_suspend(struct iwl_trans *trans)
{ {
/* /*
* This function is called when system goes into suspend state * This function is called when system goes into suspend state
* mac80211 will call iwl_mac_stop() from the mac80211 suspend function * mac80211 will call iwlagn_mac_stop() from the mac80211 suspend
* first but since iwl_mac_stop() has no knowledge of who the caller is, * function first but since iwlagn_mac_stop() has no knowledge of
* who the caller is,
* it will not call apm_ops.stop() to stop the DMA operation. * it will not call apm_ops.stop() to stop the DMA operation.
* Calling apm_ops.stop here to make sure we stop the DMA. * Calling apm_ops.stop here to make sure we stop the DMA.
* *