iwlwifi: 802.11n spec removes AUTO offset for FAT channel

This patch adapts to 802.11 patch and remove AUTO offset for FAT
channel

Signed-off-by: Guy Cohen <guy.cohen@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 8 insertions, 2 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl4965-base.c b/drivers/net/wireless/iwlwifi/iwl4965-base.c
index 2ed69376c96e..b0f6044fd6eb 100644
--- a/drivers/net/wireless/iwlwifi/iwl4965-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl4965-base.c
@@ -7957,15 +7957,21 @@ static void iwl4965_ht_info_fill(struct ieee80211_conf *conf,
         iwl_conf->is_green_field = !!(ht_conf->cap & IEEE80211_HT_CAP_GRN_FLD);
         iwl_conf->max_amsdu_size =
                 !!(ht_conf->cap & IEEE80211_HT_CAP_MAX_AMSDU);
+
         iwl_conf->supported_chan_width =
                 !!(ht_conf->cap & IEEE80211_HT_CAP_SUP_WIDTH);
+        iwl_conf->extension_chan_offset =
+                ht_bss_conf->bss_cap & IEEE80211_HT_IE_CHA_SEC_OFFSET;
+        /* If no above or below channel supplied disable FAT channel */
+        if (iwl_conf->extension_chan_offset != IWL_EXT_CHANNEL_OFFSET_ABOVE &&
+            iwl_conf->extension_chan_offset != IWL_EXT_CHANNEL_OFFSET_BELOW)
+                iwl_conf->supported_chan_width = 0;
+
         iwl_conf->tx_mimo_ps_mode =
                 (u8)((ht_conf->cap & IEEE80211_HT_CAP_MIMO_PS) >> 2);
         memcpy(iwl_conf->supp_mcs_set, ht_conf->supp_mcs_set, 16);
 
         iwl_conf->control_channel = ht_bss_conf->primary_channel;
-        iwl_conf->extension_chan_offset =
-                ht_bss_conf->bss_cap & IEEE80211_HT_IE_CHA_SEC_OFFSET;
         iwl_conf->tx_chan_width =
                 !!(ht_bss_conf->bss_cap & IEEE80211_HT_IE_CHA_WIDTH);
         iwl_conf->ht_protection =