From 9ce7b73c76ca872cb5b42e835f8e683a4051fbd9 Mon Sep 17 00:00:00 2001 From: Stanislaw Gruszka Date: Mon, 13 Feb 2012 11:23:21 +0100 Subject: [PATCH] iwlegacy: improve mac operation debuggability a bit Signed-off-by: Stanislaw Gruszka Signed-off-by: John W. Linville --- drivers/net/wireless/iwlegacy/3945-mac.c | 16 +++--- drivers/net/wireless/iwlegacy/common.c | 89 ++++++++++++++++---------------- 2 files changed, 53 insertions(+), 52 deletions(-) diff --git a/drivers/net/wireless/iwlegacy/3945-mac.c b/drivers/net/wireless/iwlegacy/3945-mac.c index 1743acc..99d7c72 100644 --- a/drivers/net/wireless/iwlegacy/3945-mac.c +++ b/drivers/net/wireless/iwlegacy/3945-mac.c @@ -2781,10 +2781,9 @@ il3945_mac_start(struct ieee80211_hw *hw) struct il_priv *il = hw->priv; int ret; - D_MAC80211("enter\n"); - /* we should be verifying the device is ready to be opened */ mutex_lock(&il->mutex); + D_MAC80211("enter\n"); /* fetch ucode file from disk, alloc and copy to bus-master buffers ... * ucode filename and max sizes are card-specific. */ @@ -2940,15 +2939,19 @@ il3945_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, * hardware will then not attempt to decrypt the frames. */ if (vif->type == NL80211_IFTYPE_ADHOC && - !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) + !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) { + D_MAC80211("leave - IBSS RSN\n"); return -EOPNOTSUPP; + } static_key = !il_is_associated(il); if (!static_key) { sta_id = il_sta_id_or_broadcast(il, sta); - if (sta_id == IL_INVALID_STATION) + if (sta_id == IL_INVALID_STATION) { + D_MAC80211("leave - station not found\n"); return -EINVAL; + } } mutex_lock(&il->mutex); @@ -2973,8 +2976,8 @@ il3945_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, ret = -EINVAL; } + D_MAC80211("leave ret %d\n", ret); mutex_unlock(&il->mutex); - D_MAC80211("leave\n"); return ret; } @@ -2989,9 +2992,8 @@ il3945_mac_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif, bool is_ap = vif->type == NL80211_IFTYPE_STATION; u8 sta_id; - D_INFO("received request to add station %pM\n", sta->addr); mutex_lock(&il->mutex); - D_INFO("proceeding to add station %pM\n", sta->addr); + D_INFO("station %pM\n", sta->addr); sta_priv->common.sta_id = IL_INVALID_STATION; ret = il_add_station_common(il, sta->addr, is_ap, sta, &sta_id); diff --git a/drivers/net/wireless/iwlegacy/common.c b/drivers/net/wireless/iwlegacy/common.c index 21b355a..0d1a643 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); -- 2.7.4