From f5bb87cfba5ae9dd3724b846ac2fa7e033425c1c Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Tue, 12 Jan 2010 13:49:51 +0100 Subject: [PATCH] mwl8k: convert the priv->vif pointer to a list of vifs To prepare for adding multi-BSS support. Signed-off-by: Lennert Buytenhek Signed-off-by: John W. Linville --- drivers/net/wireless/mwl8k.c | 51 +++++++++++++++++++++++++----------- 1 file changed, 35 insertions(+), 16 deletions(-) diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c index 382ef4305a3e..ee7d8a6329f8 100644 --- a/drivers/net/wireless/mwl8k.c +++ b/drivers/net/wireless/mwl8k.c @@ -160,7 +160,8 @@ struct mwl8k_priv { /* TX quiesce completion, protected by fw_mutex and tx_lock */ struct completion *tx_wait; - struct ieee80211_vif *vif; + /* List of interfaces. */ + struct list_head vif_list; /* power management status cookie from firmware */ u32 *cookie; @@ -210,6 +211,9 @@ struct mwl8k_priv { /* Per interface specific private data */ struct mwl8k_vif { + struct list_head list; + struct ieee80211_vif *vif; + /* Non AMPDU sequence number assigned by driver. */ u16 seqno; }; @@ -3246,7 +3250,7 @@ static void mwl8k_stop(struct ieee80211_hw *hw) } static int mwl8k_add_interface(struct ieee80211_hw *hw, - struct ieee80211_vif *vif) + struct ieee80211_vif *vif) { struct mwl8k_priv *priv = hw->priv; struct mwl8k_vif *mwl8k_vif; @@ -3254,7 +3258,7 @@ static int mwl8k_add_interface(struct ieee80211_hw *hw, /* * We only support one active interface at a time. */ - if (priv->vif != NULL) + if (!list_empty(&priv->vif_list)) return -EBUSY; /* @@ -3275,14 +3279,13 @@ static int mwl8k_add_interface(struct ieee80211_hw *hw, if (priv->ap_fw) mwl8k_cmd_set_new_stn_add_self(hw, vif); - /* Clean out driver private area */ + /* Setup driver private area. */ mwl8k_vif = MWL8K_VIF(vif); memset(mwl8k_vif, 0, sizeof(*mwl8k_vif)); - - /* Set Initial sequence number to zero */ + mwl8k_vif->vif = vif; mwl8k_vif->seqno = 0; - priv->vif = vif; + list_add_tail(&mwl8k_vif->list, &priv->vif_list); return 0; } @@ -3291,13 +3294,14 @@ static void mwl8k_remove_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) { struct mwl8k_priv *priv = hw->priv; + struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif); if (priv->ap_fw) mwl8k_cmd_set_new_stn_del(hw, vif, vif->addr); mwl8k_cmd_set_mac_addr(hw, "\x00\x00\x00\x00\x00\x00"); - priv->vif = NULL; + list_del(&mwl8k_vif->list); } static int mwl8k_config(struct ieee80211_hw *hw, u32 changed) @@ -3526,7 +3530,7 @@ mwl8k_configure_filter_sniffer(struct ieee80211_hw *hw, * operation, so refuse to enable sniffer mode if a STA * interface is active. */ - if (priv->vif != NULL) { + if (!list_empty(&priv->vif_list)) { if (net_ratelimit()) printk(KERN_INFO "%s: not enabling sniffer " "mode because STA interface is active\n", @@ -3547,6 +3551,14 @@ mwl8k_configure_filter_sniffer(struct ieee80211_hw *hw, return 1; } +static struct mwl8k_vif *mwl8k_first_vif(struct mwl8k_priv *priv) +{ + if (!list_empty(&priv->vif_list)) + return list_entry(priv->vif_list.next, struct mwl8k_vif, list); + + return NULL; +} + static void mwl8k_configure_filter(struct ieee80211_hw *hw, unsigned int changed_flags, unsigned int *total_flags, @@ -3595,6 +3607,7 @@ static void mwl8k_configure_filter(struct ieee80211_hw *hw, */ mwl8k_cmd_set_pre_scan(hw); } else { + struct mwl8k_vif *mwl8k_vif; const u8 *bssid; /* @@ -3605,9 +3618,11 @@ static void mwl8k_configure_filter(struct ieee80211_hw *hw, * (where the OUI part needs to be nonzero for * the BSSID to be accepted by POST_SCAN). */ - bssid = "\x01\x00\x00\x00\x00\x00"; - if (priv->vif != NULL) - bssid = priv->vif->bss_conf.bssid; + mwl8k_vif = mwl8k_first_vif(priv); + if (mwl8k_vif != NULL) + bssid = mwl8k_vif->vif->bss_conf.bssid; + else + bssid = "\x01\x00\x00\x00\x00\x00"; mwl8k_cmd_set_post_scan(hw, bssid); } @@ -3810,11 +3825,14 @@ static void mwl8k_finalize_join_worker(struct work_struct *work) struct mwl8k_priv *priv = container_of(work, struct mwl8k_priv, finalize_join_worker); struct sk_buff *skb = priv->beacon_skb; + struct mwl8k_vif *mwl8k_vif; - mwl8k_cmd_finalize_join(priv->hw, skb->data, skb->len, - priv->vif->bss_conf.dtim_period); - dev_kfree_skb(skb); + mwl8k_vif = mwl8k_first_vif(priv); + if (mwl8k_vif != NULL) + mwl8k_cmd_finalize_join(priv->hw, skb->data, skb->len, + mwl8k_vif->vif->bss_conf.dtim_period); + dev_kfree_skb(skb); priv->beacon_skb = NULL; } @@ -3986,7 +4004,8 @@ static int __devinit mwl8k_probe(struct pci_dev *pdev, hw->flags |= IEEE80211_HW_SIGNAL_DBM | IEEE80211_HW_NOISE_DBM; hw->vif_data_size = sizeof(struct mwl8k_vif); hw->sta_data_size = sizeof(struct mwl8k_sta); - priv->vif = NULL; + + INIT_LIST_HEAD(&priv->vif_list); /* Set default radio state and preamble */ priv->radio_on = 0; -- 2.39.5