Merge branch 'fixes-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6

11 files changed, 167 insertions, 84 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-3945-rs.c b/drivers/net/wireless/iwlwifi/iwl-3945-rs.c
index 262ab0b55824..c48b1b537d2b 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945-rs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945-rs.c
@@ -71,19 +71,19 @@ struct iwl_rate_scale_priv {
 };
 
 static s32 iwl_expected_tpt_g[IWL_RATE_COUNT] = {
-        0, 0, 76, 104, 130, 168, 191, 202, 7, 13, 35, 58
+        7, 13, 35, 58, 0, 0, 76, 104, 130, 168, 191, 202
 };
 
 static s32 iwl_expected_tpt_g_prot[IWL_RATE_COUNT] = {
-        0, 0, 0, 80, 93, 113, 123, 125, 7, 13, 35, 58
+        7, 13, 35, 58, 0, 0, 0, 80, 93, 113, 123, 125
 };
 
 static s32 iwl_expected_tpt_a[IWL_RATE_COUNT] = {
-        40, 57, 72, 98, 121, 154, 177, 186, 0, 0, 0, 0
+        0, 0, 0, 0, 40, 57, 72, 98, 121, 154, 177, 186
 };
 
 static s32 iwl_expected_tpt_b[IWL_RATE_COUNT] = {
-        0, 0, 0, 0, 0, 0, 0, 0, 7, 13, 35, 58
+        7, 13, 35, 58, 0, 0, 0, 0, 0, 0, 0, 0
 };
 
 struct iwl_tpt_entry {
@@ -350,6 +350,10 @@ static void rs_rate_init(void *priv_rate, void *priv_sta,
 
         sta->last_txrate = sta->txrate;
 
+        /* For MODE_IEEE80211A mode it start at IWL_FIRST_OFDM_RATE */
+        if (local->hw.conf.phymode == MODE_IEEE80211A)
+                sta->last_txrate += IWL_FIRST_OFDM_RATE;
+
         IWL_DEBUG_RATE("leave\n");
 }
 
@@ -417,6 +421,33 @@ static void rs_free_sta(void *priv, void *priv_sta)
         IWL_DEBUG_RATE("leave\n");
 }
 
+
+/*
+ * get ieee prev rate from rate scale table.
+ * for A and B mode we need to overright prev
+ * value
+ */
+static int rs_adjust_next_rate(struct iwl_priv *priv, int rate)
+{
+        int next_rate = iwl_get_prev_ieee_rate(rate);
+
+        switch (priv->phymode) {
+        case MODE_IEEE80211A:
+                if (rate == IWL_RATE_12M_INDEX)
+                        next_rate = IWL_RATE_9M_INDEX;
+                else if (rate == IWL_RATE_6M_INDEX)
+                        next_rate = IWL_RATE_6M_INDEX;
+                break;
+        case MODE_IEEE80211B:
+                if (rate == IWL_RATE_11M_INDEX_TABLE)
+                        next_rate = IWL_RATE_5M_INDEX_TABLE;
+                break;
+        default:
+                break;
+        }
+
+        return next_rate;
+}
 /**
  * rs_tx_status - Update rate control values based on Tx results
  *
@@ -479,7 +510,8 @@ static void rs_tx_status(void *priv_rate,
                         last_index = scale_rate_index;
                 } else {
                         current_count = priv->retry_rate;
-                        last_index = iwl_get_prev_ieee_rate(scale_rate_index);
+                        last_index = rs_adjust_next_rate(priv,
+                                                         scale_rate_index);
                 }
 
                 /* Update this rate accounting for as many retries
@@ -494,9 +526,10 @@ static void rs_tx_status(void *priv_rate,
 
                 if (retries)
                         scale_rate_index =
-                            iwl_get_prev_ieee_rate(scale_rate_index);
+                            rs_adjust_next_rate(priv, scale_rate_index);
         }
 
+
         /* Update the last index window with success/failure based on ACK */
         IWL_DEBUG_RATE("Update rate %d with %s.\n",
                        last_index,
@@ -672,7 +705,10 @@ static struct ieee80211_rate *rs_get_rate(void *priv_rate,
         }
 
         rate_mask = sta->supp_rates;
-        index = min(sta->txrate & 0xffff, IWL_RATE_COUNT - 1);
+        index = min(sta->last_txrate & 0xffff, IWL_RATE_COUNT - 1);
+
+        if (priv->phymode == (u8) MODE_IEEE80211A)
+                rate_mask = rate_mask << IWL_FIRST_OFDM_RATE;
 
         rs_priv = (void *)sta->rate_ctrl_priv;
 
@@ -801,7 +837,11 @@ static struct ieee80211_rate *rs_get_rate(void *priv_rate,
  out:
 
         sta->last_txrate = index;
-        sta->txrate = sta->last_txrate;
+        if (priv->phymode == (u8) MODE_IEEE80211A)
+                sta->txrate = sta->last_txrate - IWL_FIRST_OFDM_RATE;
+        else
+                sta->txrate = sta->last_txrate;
+
         sta_info_put(sta);
 
         IWL_DEBUG_RATE("leave: %d\n", index);
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945-rs.h b/drivers/net/wireless/iwlwifi/iwl-3945-rs.h
index b926738e0ea1..bec4d3ffca1d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945-rs.h
+++ b/drivers/net/wireless/iwlwifi/iwl-3945-rs.h
@@ -36,10 +36,17 @@ struct iwl_rate_info {
         u8 next_rs;             /* next rate used in rs algo */
         u8 prev_rs_tgg;         /* previous rate used in TGG rs algo */
         u8 next_rs_tgg;         /* next rate used in TGG rs algo */
+        u8 table_rs_index;      /* index in rate scale table cmd */
+        u8 prev_table_rs;       /* prev in rate table cmd */
+
 };
 
 enum {
-        IWL_RATE_6M_INDEX = 0,
+        IWL_RATE_1M_INDEX = 0,
+        IWL_RATE_2M_INDEX,
+        IWL_RATE_5M_INDEX,
+        IWL_RATE_11M_INDEX,
+        IWL_RATE_6M_INDEX,
         IWL_RATE_9M_INDEX,
         IWL_RATE_12M_INDEX,
         IWL_RATE_18M_INDEX,
@@ -47,16 +54,28 @@ enum {
         IWL_RATE_36M_INDEX,
         IWL_RATE_48M_INDEX,
         IWL_RATE_54M_INDEX,
-        IWL_RATE_1M_INDEX,
-        IWL_RATE_2M_INDEX,
-        IWL_RATE_5M_INDEX,
-        IWL_RATE_11M_INDEX,
         IWL_RATE_COUNT,
         IWL_RATE_INVM_INDEX,
         IWL_RATE_INVALID = IWL_RATE_INVM_INDEX
 };
 
 enum {
+        IWL_RATE_6M_INDEX_TABLE = 0,
+        IWL_RATE_9M_INDEX_TABLE,
+        IWL_RATE_12M_INDEX_TABLE,
+        IWL_RATE_18M_INDEX_TABLE,
+        IWL_RATE_24M_INDEX_TABLE,
+        IWL_RATE_36M_INDEX_TABLE,
+        IWL_RATE_48M_INDEX_TABLE,
+        IWL_RATE_54M_INDEX_TABLE,
+        IWL_RATE_1M_INDEX_TABLE,
+        IWL_RATE_2M_INDEX_TABLE,
+        IWL_RATE_5M_INDEX_TABLE,
+        IWL_RATE_11M_INDEX_TABLE,
+        IWL_RATE_INVM_INDEX_TABLE = IWL_RATE_INVM_INDEX,
+};
+
+enum {
         IWL_FIRST_OFDM_RATE = IWL_RATE_6M_INDEX,
         IWL_LAST_OFDM_RATE = IWL_RATE_54M_INDEX,
         IWL_FIRST_CCK_RATE = IWL_RATE_1M_INDEX,
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.c b/drivers/net/wireless/iwlwifi/iwl-3945.c
index 19bcb01e2784..3a45fe99a83e 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945.c
@@ -54,7 +54,9 @@
                                     IWL_RATE_##rp##M_INDEX, \
                                     IWL_RATE_##rn##M_INDEX, \
                                     IWL_RATE_##pp##M_INDEX, \
-                                    IWL_RATE_##np##M_INDEX }
+                                    IWL_RATE_##np##M_INDEX, \
+                                    IWL_RATE_##r##M_INDEX_TABLE, \
+                                    IWL_RATE_##ip##M_INDEX_TABLE }
 
 /*
  * Parameter order:
@@ -65,6 +67,10 @@
  *
  */
 const struct iwl_rate_info iwl_rates[IWL_RATE_COUNT] = {
+        IWL_DECLARE_RATE_INFO(1, INV, 2, INV, 2, INV, 2),    /*  1mbps */
+        IWL_DECLARE_RATE_INFO(2, 1, 5, 1, 5, 1, 5),          /*  2mbps */
+        IWL_DECLARE_RATE_INFO(5, 2, 6, 2, 11, 2, 11),        /*5.5mbps */
+        IWL_DECLARE_RATE_INFO(11, 9, 12, 5, 12, 5, 18),      /* 11mbps */
         IWL_DECLARE_RATE_INFO(6, 5, 9, 5, 11, 5, 11),        /*  6mbps */
         IWL_DECLARE_RATE_INFO(9, 6, 11, 5, 11, 5, 11),       /*  9mbps */
         IWL_DECLARE_RATE_INFO(12, 11, 18, 11, 18, 11, 18),   /* 12mbps */
@@ -73,10 +79,6 @@ const struct iwl_rate_info iwl_rates[IWL_RATE_COUNT] = {
         IWL_DECLARE_RATE_INFO(36, 24, 48, 24, 48, 24, 48),   /* 36mbps */
         IWL_DECLARE_RATE_INFO(48, 36, 54, 36, 54, 36, 54),   /* 48mbps */
         IWL_DECLARE_RATE_INFO(54, 48, INV, 48, INV, 48, INV),/* 54mbps */
-        IWL_DECLARE_RATE_INFO(1, INV, 2, INV, 2, INV, 2),    /*  1mbps */
-        IWL_DECLARE_RATE_INFO(2, 1, 5, 1, 5, 1, 5),          /*  2mbps */
-        IWL_DECLARE_RATE_INFO(5, 2, 6, 2, 11, 2, 11),        /*5.5mbps */
-        IWL_DECLARE_RATE_INFO(11, 9, 12, 5, 12, 5, 18),      /* 11mbps */
 };
 
 /* 1 = enable the iwl_disable_events() function */
@@ -662,10 +664,11 @@ void iwl_hw_build_tx_cmd_rate(struct iwl_priv *priv,
         cmd->cmd.tx.tx_flags = tx_flags;
 
         /* OFDM */
-        cmd->cmd.tx.supp_rates[0] = rate_mask & IWL_OFDM_RATES_MASK;
+        cmd->cmd.tx.supp_rates[0] =
+           ((rate_mask & IWL_OFDM_RATES_MASK) >> IWL_FIRST_OFDM_RATE) & 0xFF;
 
         /* CCK */
-        cmd->cmd.tx.supp_rates[1] = (rate_mask >> 8) & 0xF;
+        cmd->cmd.tx.supp_rates[1] = (rate_mask & 0xF);
 
         IWL_DEBUG_RATE("Tx sta id: %d, rate: %d (plcp), flags: 0x%4X "
                        "cck/ofdm mask: 0x%x/0x%x\n", sta_id,
@@ -1432,7 +1435,7 @@ static void iwl_hw_reg_set_scan_power(struct iwl_priv *priv, u32 scan_tbl_index,
         /* use this channel group's 6Mbit clipping/saturation pwr,
          *   but cap at regulatory scan power restriction (set during init
          *   based on eeprom channel data) for this channel.  */
-        power = min(ch_info->scan_power, clip_pwrs[IWL_RATE_6M_INDEX]);
+        power = min(ch_info->scan_power, clip_pwrs[IWL_RATE_6M_INDEX_TABLE]);
 
         /* further limit to user's max power preference.
          * FIXME:  Other spectrum management power limitations do not
@@ -1447,7 +1450,7 @@ static void iwl_hw_reg_set_scan_power(struct iwl_priv *priv, u32 scan_tbl_index,
          *   *index*. */
         power_index = ch_info->power_info[rate_index].power_table_index
             - (power - ch_info->power_info
-               [IWL_RATE_6M_INDEX].requested_power) * 2;
+               [IWL_RATE_6M_INDEX_TABLE].requested_power) * 2;
 
         /* store reference index that we use when adjusting *all* scan
          *   powers.  So we can accommodate user (all channel) or spectrum
@@ -1476,7 +1479,7 @@ static void iwl_hw_reg_set_scan_power(struct iwl_priv *priv, u32 scan_tbl_index,
  */
 int iwl_hw_reg_send_txpower(struct iwl_priv *priv)
 {
-        int rate_idx;
+        int rate_idx, i;
         const struct iwl_channel_info *ch_info = NULL;
         struct iwl_txpowertable_cmd txpower = {
                 .channel = priv->active_rxon.channel,
@@ -1500,20 +1503,36 @@ int iwl_hw_reg_send_txpower(struct iwl_priv *priv)
         }
 
         /* fill cmd with power settings for all rates for current channel */
-        for (rate_idx = 0; rate_idx < IWL_RATE_COUNT; rate_idx++) {
-                txpower.power[rate_idx].tpc = ch_info->power_info[rate_idx].tpc;
-                txpower.power[rate_idx].rate = iwl_rates[rate_idx].plcp;
+        /* Fill OFDM rate */
+        for (rate_idx = IWL_FIRST_OFDM_RATE, i = 0;
+             rate_idx <= IWL_LAST_OFDM_RATE; rate_idx++, i++) {
+
+                txpower.power[i].tpc = ch_info->power_info[i].tpc;
+                txpower.power[i].rate = iwl_rates[rate_idx].plcp;
 
                 IWL_DEBUG_POWER("ch %d:%d rf %d dsp %3d rate code 0x%02x\n",
                                 le16_to_cpu(txpower.channel),
                                 txpower.band,
-                                txpower.power[rate_idx].tpc.tx_gain,
-                                txpower.power[rate_idx].tpc.dsp_atten,
-                                txpower.power[rate_idx].rate);
+                                txpower.power[i].tpc.tx_gain,
+                                txpower.power[i].tpc.dsp_atten,
+                                txpower.power[i].rate);
+        }
+        /* Fill CCK rates */
+        for (rate_idx = IWL_FIRST_CCK_RATE;
+             rate_idx <= IWL_LAST_CCK_RATE; rate_idx++, i++) {
+                txpower.power[i].tpc = ch_info->power_info[i].tpc;
+                txpower.power[i].rate = iwl_rates[rate_idx].plcp;
+
+                IWL_DEBUG_POWER("ch %d:%d rf %d dsp %3d rate code 0x%02x\n",
+                                le16_to_cpu(txpower.channel),
+                                txpower.band,
+                                txpower.power[i].tpc.tx_gain,
+                                txpower.power[i].tpc.dsp_atten,
+                                txpower.power[i].rate);
         }
 
         return iwl_send_cmd_pdu(priv, REPLY_TX_PWR_TABLE_CMD,
-                                sizeof(struct iwl_txpowertable_cmd), &txpower);
+                        sizeof(struct iwl_txpowertable_cmd), &txpower);
 
 }
 
@@ -1549,7 +1568,7 @@ static int iwl_hw_reg_set_new_power(struct iwl_priv *priv,
         power_info = ch_info->power_info;
 
         /* update OFDM Txpower settings */
-        for (i = IWL_FIRST_OFDM_RATE; i <= IWL_LAST_OFDM_RATE;
+        for (i = IWL_RATE_6M_INDEX_TABLE; i <= IWL_RATE_54M_INDEX_TABLE;
              i++, ++power_info) {
                 int delta_idx;
 
@@ -1573,14 +1592,14 @@ static int iwl_hw_reg_set_new_power(struct iwl_priv *priv,
          *    ... all CCK power settings for a given channel are the *same*. */
         if (power_changed) {
                 power =
-                    ch_info->power_info[IWL_RATE_12M_INDEX].
+                    ch_info->power_info[IWL_RATE_12M_INDEX_TABLE].
                     requested_power + IWL_CCK_FROM_OFDM_POWER_DIFF;
 
                 /* do all CCK rates' iwl_channel_power_info structures */
-                for (i = IWL_FIRST_CCK_RATE; i <= IWL_LAST_CCK_RATE; i++) {
+                for (i = IWL_RATE_1M_INDEX_TABLE; i <= IWL_RATE_11M_INDEX_TABLE; i++) {
                         power_info->requested_power = power;
                         power_info->base_power_index =
-                            ch_info->power_info[IWL_RATE_12M_INDEX].
+                            ch_info->power_info[IWL_RATE_12M_INDEX_TABLE].
                             base_power_index + IWL_CCK_FROM_OFDM_INDEX_DIFF;
                         ++power_info;
                 }
@@ -1674,7 +1693,7 @@ static int iwl_hw_reg_comp_txpower_temp(struct iwl_priv *priv)
                 for (scan_tbl_index = 0;
                      scan_tbl_index < IWL_NUM_SCAN_RATES; scan_tbl_index++) {
                         s32 actual_index = (scan_tbl_index == 0) ?
-                            IWL_RATE_1M_INDEX : IWL_RATE_6M_INDEX;
+                            IWL_RATE_1M_INDEX_TABLE : IWL_RATE_6M_INDEX_TABLE;
                         iwl_hw_reg_set_scan_power(priv, scan_tbl_index,
                                            actual_index, clip_pwrs,
                                            ch_info, a_band);
@@ -1905,19 +1924,19 @@ static void iwl_hw_reg_init_channel_groups(struct iwl_priv *priv)
                 for (rate_index = 0;
                      rate_index < IWL_RATE_COUNT; rate_index++, clip_pwrs++) {
                         switch (rate_index) {
-                        case IWL_RATE_36M_INDEX:
+                        case IWL_RATE_36M_INDEX_TABLE:
                                 if (i == 0)     /* B/G */
                                         *clip_pwrs = satur_pwr;
                                 else    /* A */
                                         *clip_pwrs = satur_pwr - 5;
                                 break;
-                        case IWL_RATE_48M_INDEX:
+                        case IWL_RATE_48M_INDEX_TABLE:
                                 if (i == 0)
                                         *clip_pwrs = satur_pwr - 7;
                                 else
                                         *clip_pwrs = satur_pwr - 10;
                                 break;
-                        case IWL_RATE_54M_INDEX:
+                        case IWL_RATE_54M_INDEX_TABLE:
                                 if (i == 0)
                                         *clip_pwrs = satur_pwr - 9;
                                 else
@@ -2031,7 +2050,7 @@ int iwl3945_txpower_set_from_eeprom(struct iwl_priv *priv)
                 }
 
                 /* set tx power for CCK rates, based on OFDM 12 Mbit settings*/
-                pwr_info = &ch_info->power_info[IWL_RATE_12M_INDEX];
+                pwr_info = &ch_info->power_info[IWL_RATE_12M_INDEX_TABLE];
                 power = pwr_info->requested_power +
                         IWL_CCK_FROM_OFDM_POWER_DIFF;
                 pwr_index = pwr_info->power_table_index +
@@ -2047,9 +2066,9 @@ int iwl3945_txpower_set_from_eeprom(struct iwl_priv *priv)
                 /* fill each CCK rate's iwl_channel_power_info structure
                  * NOTE:  All CCK-rate Txpwrs are the same for a given chnl!
                  * NOTE:  CCK rates start at end of OFDM rates! */
-                for (rate_index = IWL_OFDM_RATES;
-                     rate_index < IWL_RATE_COUNT; rate_index++) {
-                        pwr_info = &ch_info->power_info[rate_index];
+                for (rate_index = 0;
+                     rate_index < IWL_CCK_RATES; rate_index++) {
+                        pwr_info = &ch_info->power_info[rate_index+IWL_OFDM_RATES];
                         pwr_info->requested_power = power;
                         pwr_info->power_table_index = pwr_index;
                         pwr_info->base_power_index = base_pwr_index;
@@ -2061,7 +2080,7 @@ int iwl3945_txpower_set_from_eeprom(struct iwl_priv *priv)
                 for (scan_tbl_index = 0;
                      scan_tbl_index < IWL_NUM_SCAN_RATES; scan_tbl_index++) {
                         s32 actual_index = (scan_tbl_index == 0) ?
-                                IWL_RATE_1M_INDEX : IWL_RATE_6M_INDEX;
+                                IWL_RATE_1M_INDEX_TABLE : IWL_RATE_6M_INDEX_TABLE;
                         iwl_hw_reg_set_scan_power(priv, scan_tbl_index,
                                 actual_index, clip_pwrs, ch_info, a_band);
                 }
@@ -2139,17 +2158,20 @@ int iwl_hw_get_rx_read(struct iwl_priv *priv)
  */
 int iwl3945_init_hw_rate_table(struct iwl_priv *priv)
 {
-        int rc, i;
+        int rc, i, index, prev_index;
         struct iwl_rate_scaling_cmd rate_cmd = {
                 .reserved = {0, 0, 0},
         };
         struct iwl_rate_scaling_info *table = rate_cmd.table;
 
         for (i = 0; i < ARRAY_SIZE(iwl_rates); i++) {
-                table[i].rate_n_flags =
+                index = iwl_rates[i].table_rs_index;
+
+                table[index].rate_n_flags =
                         iwl_hw_set_rate_n_flags(iwl_rates[i].plcp, 0);
-                table[i].try_cnt = priv->retry_rate;
-                table[i].next_rate_index = iwl_get_prev_ieee_rate(i);
+                table[index].try_cnt = priv->retry_rate;
+                prev_index = iwl_get_prev_ieee_rate(i);
+                table[index].next_rate_index = iwl_rates[prev_index].table_rs_index;
         }
 
         switch (priv->phymode) {
@@ -2157,26 +2179,26 @@ int iwl3945_init_hw_rate_table(struct iwl_priv *priv)
                 IWL_DEBUG_RATE("Select A mode rate scale\n");
                 /* If one of the following CCK rates is used,
                  * have it fall back to the 6M OFDM rate */
-                for (i = IWL_FIRST_CCK_RATE; i <= IWL_LAST_CCK_RATE; i++)
-                        table[i].next_rate_index = IWL_FIRST_OFDM_RATE;
+                for (i = IWL_RATE_1M_INDEX_TABLE; i <= IWL_RATE_11M_INDEX_TABLE; i++)
+                        table[i].next_rate_index = iwl_rates[IWL_FIRST_OFDM_RATE].table_rs_index;
 
                 /* Don't fall back to CCK rates */
-                table[IWL_RATE_12M_INDEX].next_rate_index = IWL_RATE_9M_INDEX;
+                table[IWL_RATE_12M_INDEX_TABLE].next_rate_index = IWL_RATE_9M_INDEX_TABLE;
 
                 /* Don't drop out of OFDM rates */
-                table[IWL_FIRST_OFDM_RATE].next_rate_index =
-                    IWL_FIRST_OFDM_RATE;
+                table[IWL_RATE_6M_INDEX_TABLE].next_rate_index =
+                    iwl_rates[IWL_FIRST_OFDM_RATE].table_rs_index;
                 break;
 
         case MODE_IEEE80211B:
                 IWL_DEBUG_RATE("Select B mode rate scale\n");
                 /* If an OFDM rate is used, have it fall back to the
                  * 1M CCK rates */
-                for (i = IWL_FIRST_OFDM_RATE; i <= IWL_LAST_OFDM_RATE; i++)
-                        table[i].next_rate_index = IWL_FIRST_CCK_RATE;
+                for (i = IWL_RATE_6M_INDEX_TABLE; i <= IWL_RATE_54M_INDEX_TABLE; i++)
+                        table[i].next_rate_index = iwl_rates[IWL_FIRST_CCK_RATE].table_rs_index;
 
                 /* CCK shouldn't fall back to OFDM... */
-                table[IWL_RATE_11M_INDEX].next_rate_index = IWL_RATE_5M_INDEX;
+                table[IWL_RATE_11M_INDEX_TABLE].next_rate_index = IWL_RATE_5M_INDEX_TABLE;
                 break;
 
         default:
@@ -2248,22 +2270,12 @@ unsigned int iwl_hw_get_beacon_cmd(struct iwl_priv *priv,
         tx_beacon_cmd->tx.tx_flags = (TX_CMD_FLG_SEQ_CTL_MSK |
                                       TX_CMD_FLG_TSF_MSK);
 
-        /* supp_rates[0] == OFDM  */
-        tx_beacon_cmd->tx.supp_rates[0] = IWL_OFDM_BASIC_RATES_MASK;
-
-        /* supp_rates[1] == CCK
-         *
-         * NOTE:  IWL_*_RATES_MASK are not in the order that supp_rates
-         * expects so we have to shift them around.
-         *
-         * supp_rates expects:
-         * CCK rates are bit0..3
-         *
-         * However IWL_*_RATES_MASK has:
-         * CCK rates are bit8..11
-         */
+        /* supp_rates[0] == OFDM start at IWL_FIRST_OFDM_RATE*/
+        tx_beacon_cmd->tx.supp_rates[0] =
+                (IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
+
         tx_beacon_cmd->tx.supp_rates[1] =
-                (IWL_CCK_BASIC_RATES_MASK >> 8) & 0xF;
+                (IWL_CCK_BASIC_RATES_MASK & 0xF);
 
         return (sizeof(struct iwl_tx_beacon_cmd) + frame_size);
 }
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index ee752f1e21dd..465da4f67ce7 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -5332,13 +5332,13 @@ static int iwl_init_geos(struct iwl_priv *priv)
         /* 5.2GHz channels start after the 2.4GHz channels */
         modes[A].mode = MODE_IEEE80211A;
         modes[A].channels = &channels[ARRAY_SIZE(iwl_eeprom_band_1)];
-        modes[A].rates = rates;
+        modes[A].rates = &rates[4];
         modes[A].num_rates = 8; /* just OFDM */
         modes[A].num_channels = 0;
 
         modes[B].mode = MODE_IEEE80211B;
         modes[B].channels = channels;
-        modes[B].rates = &rates[8];
+        modes[B].rates = rates;
         modes[B].num_rates = 4; /* just CCK */
         modes[B].num_channels = 0;
 
diff --git a/drivers/net/wireless/iwlwifi/iwl4965-base.c b/drivers/net/wireless/iwlwifi/iwl4965-base.c
index 6757c6c1b25a..9918780f5e86 100644
--- a/drivers/net/wireless/iwlwifi/iwl4965-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl4965-base.c
@@ -5156,9 +5156,10 @@ static irqreturn_t iwl_isr(int irq, void *data)
         }
 
         if ((inta == 0xFFFFFFFF) || ((inta & 0xFFFFFFF0) == 0xa5a5a5a0)) {
-                /* Hardware disappeared */
+                /* Hardware disappeared. It might have already raised
+                 * an interrupt */
                 IWL_WARNING("HARDWARE GONE?? INTA == 0x%080x\n", inta);
-                goto none;
+                goto unplugged;
         }
 
         IWL_DEBUG_ISR("ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
@@ -5166,8 +5167,9 @@ static irqreturn_t iwl_isr(int irq, void *data)
 
         /* iwl_irq_tasklet() will service interrupts and re-enable them */
         tasklet_schedule(&priv->irq_tasklet);
-        spin_unlock(&priv->lock);
 
+ unplugged:
+        spin_unlock(&priv->lock);
         return IRQ_HANDLED;
 
  none:
diff --git a/drivers/net/wireless/rt2x00/rt2500pci.c b/drivers/net/wireless/rt2x00/rt2500pci.c
index ff2d63267b19..702321c30164 100644
--- a/drivers/net/wireless/rt2x00/rt2500pci.c
+++ b/drivers/net/wireless/rt2x00/rt2500pci.c
@@ -620,7 +620,7 @@ static void rt2500pci_link_tuner(struct rt2x00_dev *rt2x00dev)
          * up to version C the link tuning should halt after 20
          * seconds.
          */
-        if (rt2x00_get_rev(&rt2x00dev->chip) < RT2560_VERSION_D &&
+        if (rt2x00_rev(&rt2x00dev->chip) < RT2560_VERSION_D &&
             rt2x00dev->link.count > 20)
                 return;
 
@@ -630,7 +630,7 @@ static void rt2500pci_link_tuner(struct rt2x00_dev *rt2x00dev)
          * Chipset versions C and lower should directly continue
          * to the dynamic CCA tuning.
          */
-        if (rt2x00_get_rev(&rt2x00dev->chip) < RT2560_VERSION_D)
+        if (rt2x00_rev(&rt2x00dev->chip) < RT2560_VERSION_D)
                 goto dynamic_cca_tune;
 
         /*
diff --git a/drivers/net/wireless/rt2x00/rt2500usb.c b/drivers/net/wireless/rt2x00/rt2500usb.c
index 7cdc80a122bb..277a020b35e9 100644
--- a/drivers/net/wireless/rt2x00/rt2500usb.c
+++ b/drivers/net/wireless/rt2x00/rt2500usb.c
@@ -753,7 +753,7 @@ static int rt2500usb_init_registers(struct rt2x00_dev *rt2x00dev)
         rt2x00_set_field16(&reg, MAC_CSR1_HOST_READY, 1);
         rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg);
 
-        if (rt2x00_get_rev(&rt2x00dev->chip) >= RT2570_VERSION_C) {
+        if (rt2x00_rev(&rt2x00dev->chip) >= RT2570_VERSION_C) {
                 rt2500usb_register_read(rt2x00dev, PHY_CSR2, &reg);
                 reg &= ~0x0002;
         } else {
@@ -1257,7 +1257,7 @@ static int rt2500usb_init_eeprom(struct rt2x00_dev *rt2x00dev)
         rt2500usb_register_read(rt2x00dev, MAC_CSR0, &reg);
         rt2x00_set_chip(rt2x00dev, RT2570, value, reg);
 
-        if (rt2x00_rev(&rt2x00dev->chip, 0xffff0)) {
+        if (!rt2x00_check_rev(&rt2x00dev->chip, 0)) {
                 ERROR(rt2x00dev, "Invalid RT chipset detected.\n");
                 return -ENODEV;
         }
diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h
index 9845e584b731..d1ad5251a77a 100644
--- a/drivers/net/wireless/rt2x00/rt2x00.h
+++ b/drivers/net/wireless/rt2x00/rt2x00.h
@@ -751,14 +751,16 @@ static inline char rt2x00_rf(const struct rt2x00_chip *chipset, const u16 chip)
         return (chipset->rf == chip);
 }
 
-static inline u16 rt2x00_get_rev(const struct rt2x00_chip *chipset)
+static inline u16 rt2x00_rev(const struct rt2x00_chip *chipset)
 {
         return chipset->rev;
 }
 
-static inline u16 rt2x00_rev(const struct rt2x00_chip *chipset, const u32 mask)
+static inline u16 rt2x00_check_rev(const struct rt2x00_chip *chipset,
+                                   const u32 rev)
 {
-        return chipset->rev & mask;
+        return (((chipset->rev & 0xffff0) == rev) &&
+                !!(chipset->rev & 0x0000f));
 }
 
 /*
diff --git a/drivers/net/wireless/rt2x00/rt73usb.c b/drivers/net/wireless/rt2x00/rt73usb.c
index 46c8c0840a65..dc640bf6b5eb 100644
--- a/drivers/net/wireless/rt2x00/rt73usb.c
+++ b/drivers/net/wireless/rt2x00/rt73usb.c
@@ -1486,7 +1486,7 @@ static int rt73usb_init_eeprom(struct rt2x00_dev *rt2x00dev)
         rt73usb_register_read(rt2x00dev, MAC_CSR0, &reg);
         rt2x00_set_chip(rt2x00dev, RT2571, value, reg);
 
-        if (!rt2x00_rev(&rt2x00dev->chip, 0x25730)) {
+        if (!rt2x00_check_rev(&rt2x00dev->chip, 0x25730)) {
                 ERROR(rt2x00dev, "Invalid RT chipset detected.\n");
                 return -ENODEV;
         }
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index b4e32ab3664d..72e1c93dd87e 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -242,6 +242,8 @@ struct ieee80211_if_sta {
         u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
         u8 ssid[IEEE80211_MAX_SSID_LEN];
         size_t ssid_len;
+        u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
+        size_t scan_ssid_len;
         u16 aid;
         u16 ap_capab, capab;
         u8 *extra_ie; /* to be added to the end of AssocReq */
diff --git a/net/mac80211/ieee80211_sta.c b/net/mac80211/ieee80211_sta.c
index 2079e988fc56..015b3f879aa9 100644
--- a/net/mac80211/ieee80211_sta.c
+++ b/net/mac80211/ieee80211_sta.c
@@ -2002,7 +2002,10 @@ void ieee80211_sta_work(struct work_struct *work)
         if (ifsta->state != IEEE80211_AUTHENTICATE &&
             ifsta->state != IEEE80211_ASSOCIATE &&
             test_and_clear_bit(IEEE80211_STA_REQ_SCAN, &ifsta->request)) {
-                ieee80211_sta_start_scan(dev, NULL, 0);
+                if (ifsta->scan_ssid_len)
+                        ieee80211_sta_start_scan(dev, ifsta->scan_ssid, ifsta->scan_ssid_len);
+                else
+                        ieee80211_sta_start_scan(dev, NULL, 0);
                 return;
         }
 
@@ -2872,6 +2875,9 @@ int ieee80211_sta_req_scan(struct net_device *dev, u8 *ssid, size_t ssid_len)
                 return -EBUSY;
         }
 
+        ifsta->scan_ssid_len = ssid_len;
+        if (ssid_len)
+                memcpy(ifsta->scan_ssid, ssid, ssid_len);
         set_bit(IEEE80211_STA_REQ_SCAN, &ifsta->request);
         queue_work(local->hw.workqueue, &ifsta->work);
         return 0;