diff options
Diffstat (limited to 'net/mac80211/ieee80211_sta.c')
| -rw-r--r-- | net/mac80211/ieee80211_sta.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/net/mac80211/ieee80211_sta.c b/net/mac80211/ieee80211_sta.c index 8e6548974a9..0f5f8131bd7 100644 --- a/net/mac80211/ieee80211_sta.c +++ b/net/mac80211/ieee80211_sta.c @@ -318,6 +318,7 @@ static void ieee80211_handle_erp_ie(struct net_device *dev, u8 erp_value) struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); struct ieee80211_if_sta *ifsta = &sdata->u.sta; int use_protection = (erp_value & WLAN_ERP_USE_PROTECTION) != 0; + int preamble_mode = (erp_value & WLAN_ERP_BARKER_PREAMBLE) != 0; if (use_protection != sdata->use_protection) { if (net_ratelimit()) { @@ -329,6 +330,18 @@ static void ieee80211_handle_erp_ie(struct net_device *dev, u8 erp_value) } sdata->use_protection = use_protection; } + + if (!preamble_mode != sdata->short_preamble) { + if (net_ratelimit()) { + printk(KERN_DEBUG "%s: switched to %s barker preamble" + " (BSSID=" MAC_FMT ")\n", + dev->name, + (preamble_mode == WLAN_ERP_PREAMBLE_SHORT) ? + "short" : "long", + MAC_ARG(ifsta->bssid)); + } + sdata->short_preamble = !preamble_mode; + } } @@ -415,6 +428,7 @@ static void ieee80211_set_associated(struct net_device *dev, ieee80211_sta_send_associnfo(dev, ifsta); } else { netif_carrier_off(dev); + sdata->short_preamble = 0; sdata->use_protection = 0; memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN); } @@ -2281,7 +2295,7 @@ static int ieee80211_sta_join_ibss(struct net_device *dev, "for IBSS beacon\n", dev->name); break; } - control.tx_rate = (local->short_preamble && + control.tx_rate = (sdata->short_preamble && (rate->flags & IEEE80211_RATE_PREAMBLE2)) ? rate->val2 : rate->val; control.antenna_sel_tx = local->hw.conf.antenna_sel_tx; |