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authorStanislaw Gruszka <sgruszka@redhat.com>2012-02-13 11:23:21 +0100
committerJohn W. Linville <linville@tuxdriver.com>2012-02-22 14:51:15 -0500
commit9ce7b73c76ca872cb5b42e835f8e683a4051fbd9 (patch)
tree93e7cfd03deab376154537cd26db502a6cd9f37a /drivers/net/wireless/iwlegacy/common.c
parent288f9954132cd64f60fbb8051e31d62d8c35875f (diff)
iwlegacy: improve mac operation debuggability a bit
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/iwlegacy/common.c')
-rw-r--r--drivers/net/wireless/iwlegacy/common.c89
1 files changed, 44 insertions, 45 deletions
diff --git a/drivers/net/wireless/iwlegacy/common.c b/drivers/net/wireless/iwlegacy/common.c
index 21b355a9171f..0d1a643d8b91 100644
--- a/drivers/net/wireless/iwlegacy/common.c
+++ b/drivers/net/wireless/iwlegacy/common.c
@@ -1523,12 +1523,13 @@ il_mac_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
struct il_priv *il = hw->priv;
int ret;
- D_MAC80211("enter\n");
-
- if (req->n_channels == 0)
+ if (req->n_channels == 0) {
+ IL_ERR("Can not scan on no channels.\n");
return -EINVAL;
+ }
mutex_lock(&il->mutex);
+ D_MAC80211("enter\n");
if (test_bit(S_SCANNING, &il->status)) {
D_SCAN("Scan already in progress.\n");
@@ -1543,9 +1544,8 @@ il_mac_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
ret = il_scan_initiate(il, vif);
- D_MAC80211("leave\n");
-
out_unlock:
+ D_MAC80211("leave ret %d\n", ret);
mutex_unlock(&il->mutex);
return ret;
@@ -2413,13 +2413,16 @@ il_mac_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
struct il_station_priv_common *sta_common = (void *)sta->drv_priv;
int ret;
- D_INFO("received request to remove station %pM\n", sta->addr);
mutex_lock(&il->mutex);
- D_INFO("proceeding to remove station %pM\n", sta->addr);
+ D_MAC80211("enter station %pM\n", sta->addr);
+
ret = il_remove_station(il, sta_common->sta_id, sta->addr);
if (ret)
IL_ERR("Error removing station %pM\n", sta->addr);
+
+ D_MAC80211("leave ret %d\n", ret);
mutex_unlock(&il->mutex);
+
return ret;
}
EXPORT_SYMBOL(il_mac_sta_remove);
@@ -4459,8 +4462,14 @@ int
il_mac_tx_last_beacon(struct ieee80211_hw *hw)
{
struct il_priv *il = hw->priv;
+ int ret;
- return il->ibss_manager == IL_IBSS_MANAGER;
+ D_MAC80211("enter\n");
+
+ ret = (il->ibss_manager == IL_IBSS_MANAGER);
+
+ D_MAC80211("leave ret %d\n", ret);
+ return ret;
}
EXPORT_SYMBOL_GPL(il_mac_tx_last_beacon);
@@ -4481,9 +4490,8 @@ il_mac_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
struct il_priv *il = hw->priv;
int err;
- D_MAC80211("enter: type %d, addr %pM\n", vif->type, vif->addr);
-
mutex_lock(&il->mutex);
+ D_MAC80211("enter: type %d, addr %pM\n", vif->type, vif->addr);
if (!il_is_ready_rf(il)) {
IL_WARN("Try to add interface when device not ready\n");
@@ -4506,9 +4514,9 @@ il_mac_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
}
out:
+ D_MAC80211("leave err %d\n", err);
mutex_unlock(&il->mutex);
- D_MAC80211("leave\n");
return err;
}
EXPORT_SYMBOL(il_mac_add_interface);
@@ -4534,20 +4542,17 @@ il_mac_remove_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
{
struct il_priv *il = hw->priv;
- D_MAC80211("enter\n");
-
mutex_lock(&il->mutex);
+ D_MAC80211("enter: type %d, addr %pM\n", vif->type, vif->addr);
WARN_ON(il->vif != vif);
il->vif = NULL;
il_teardown_interface(il, vif, false);
-
memset(il->bssid, 0, ETH_ALEN);
- mutex_unlock(&il->mutex);
D_MAC80211("leave\n");
-
+ mutex_unlock(&il->mutex);
}
EXPORT_SYMBOL(il_mac_remove_interface);
@@ -4633,10 +4638,14 @@ il_mac_change_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
struct il_priv *il = hw->priv;
int err;
- if (newp2p)
- return -EOPNOTSUPP;
-
mutex_lock(&il->mutex);
+ D_MAC80211("enter: type %d, addr %pM newtype %d newp2p %d\n",
+ vif->type, vif->addr, newtype, newp2p);
+
+ if (newp2p) {
+ err = -EOPNOTSUPP;
+ goto out;
+ }
if (!il->vif || !il_is_ready_rf(il)) {
/*
@@ -4663,7 +4672,9 @@ il_mac_change_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
err = 0;
out:
+ D_MAC80211("leave err %d\n", err);
mutex_unlock(&il->mutex);
+
return err;
}
EXPORT_SYMBOL(il_mac_change_interface);
@@ -4922,8 +4933,7 @@ il_mac_config(struct ieee80211_hw *hw, u32 changed)
bool ht_changed = false;
mutex_lock(&il->mutex);
-
- D_MAC80211("enter to channel %d changed 0x%X\n", channel->hw_value,
+ D_MAC80211("enter: channel %d changed 0x%X\n", channel->hw_value,
changed);
if (unlikely(test_bit(S_SCANNING, &il->status))) {
@@ -5052,8 +5062,9 @@ set_ch_out:
il_update_qos(il);
out:
- D_MAC80211("leave\n");
+ D_MAC80211("leave ret %d\n", ret);
mutex_unlock(&il->mutex);
+
return ret;
}
EXPORT_SYMBOL(il_mac_config);
@@ -5065,20 +5076,16 @@ il_mac_reset_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
unsigned long flags;
mutex_lock(&il->mutex);
- D_MAC80211("enter\n");
+ D_MAC80211("enter: type %d, addr %pM\n", vif->type, vif->addr);
spin_lock_irqsave(&il->lock, flags);
- memset(&il->current_ht_config, 0, sizeof(struct il_ht_config));
- spin_unlock_irqrestore(&il->lock, flags);
- spin_lock_irqsave(&il->lock, flags);
+ memset(&il->current_ht_config, 0, sizeof(struct il_ht_config));
/* new association get rid of ibss beacon skb */
if (il->beacon_skb)
dev_kfree_skb(il->beacon_skb);
-
il->beacon_skb = NULL;
-
il->timestamp = 0;
spin_unlock_irqrestore(&il->lock, flags);
@@ -5090,17 +5097,14 @@ il_mac_reset_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
return;
}
- /* we are restarting association process
- * clear RXON_FILTER_ASSOC_MSK bit
- */
+ /* we are restarting association process */
il->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
il_commit_rxon(il);
il_set_rate(il);
- mutex_unlock(&il->mutex);
-
D_MAC80211("leave\n");
+ mutex_unlock(&il->mutex);
}
EXPORT_SYMBOL(il_mac_reset_tsf);
@@ -5226,11 +5230,11 @@ il_mac_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
struct il_priv *il = hw->priv;
int ret;
- D_MAC80211("changes = 0x%X\n", changes);
-
mutex_lock(&il->mutex);
+ D_MAC80211("enter: changes 0x%x\n", changes);
if (!il_is_alive(il)) {
+ D_MAC80211("leave - not alive\n");
mutex_unlock(&il->mutex);
return;
}
@@ -5261,8 +5265,7 @@ il_mac_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
* below/in post_associate will fail.
*/
if (il_scan_cancel_timeout(il, 100)) {
- IL_WARN("Aborted scan still in progress after 100ms\n");
- D_MAC80211("leaving - scan abort failed.\n");
+ D_MAC80211("leave - scan abort failed\n");
mutex_unlock(&il->mutex);
return;
}
@@ -5274,10 +5277,8 @@ il_mac_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
/* currently needed in a few places */
memcpy(il->bssid, bss_conf->bssid, ETH_ALEN);
- } else {
+ } else
il->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
- }
-
}
/*
@@ -5364,18 +5365,16 @@ il_mac_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
}
if (changes & BSS_CHANGED_IBSS) {
- ret =
- il->ops->manage_ibss_station(il, vif,
- bss_conf->ibss_joined);
+ ret = il->ops->manage_ibss_station(il, vif,
+ bss_conf->ibss_joined);
if (ret)
IL_ERR("failed to %s IBSS station %pM\n",
bss_conf->ibss_joined ? "add" : "remove",
bss_conf->bssid);
}
- mutex_unlock(&il->mutex);
-
D_MAC80211("leave\n");
+ mutex_unlock(&il->mutex);
}
EXPORT_SYMBOL(il_mac_bss_info_changed);