diff options
Diffstat (limited to 'net/mac80211/util.c')
| -rw-r--r-- | net/mac80211/util.c | 37 |
1 files changed, 31 insertions, 6 deletions
diff --git a/net/mac80211/util.c b/net/mac80211/util.c index c4565830947..091ac0d634a 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -314,31 +314,46 @@ int ieee80211_frame_duration(struct ieee80211_local *local, size_t len, } /* Exported duration function for driver use */ -__le16 ieee80211_generic_frame_duration(struct ieee80211_hw *hw, +__le16 ieee80211_generic_frame_duration(struct ieee80211_hw *hw, int if_id, size_t frame_len, int rate) { struct ieee80211_local *local = hw_to_local(hw); + struct net_device *bdev = dev_get_by_index(if_id); + struct ieee80211_sub_if_data *sdata; u16 dur; int erp; + if (unlikely(!bdev)) + return 0; + + sdata = IEEE80211_DEV_TO_SUB_IF(bdev); erp = ieee80211_is_erp_rate(hw->conf.phymode, rate); dur = ieee80211_frame_duration(local, frame_len, rate, - erp, local->short_preamble); + erp, sdata->short_preamble); + dev_put(bdev); return cpu_to_le16(dur); } EXPORT_SYMBOL(ieee80211_generic_frame_duration); -__le16 ieee80211_rts_duration(struct ieee80211_hw *hw, +__le16 ieee80211_rts_duration(struct ieee80211_hw *hw, int if_id, size_t frame_len, const struct ieee80211_tx_control *frame_txctl) { struct ieee80211_local *local = hw_to_local(hw); struct ieee80211_rate *rate; - int short_preamble = local->short_preamble; + struct net_device *bdev = dev_get_by_index(if_id); + struct ieee80211_sub_if_data *sdata; + int short_preamble; int erp; u16 dur; + if (unlikely(!bdev)) + return 0; + + sdata = IEEE80211_DEV_TO_SUB_IF(bdev); + short_preamble = sdata->short_preamble; + rate = frame_txctl->rts_rate; erp = !!(rate->flags & IEEE80211_RATE_ERP); @@ -352,20 +367,29 @@ __le16 ieee80211_rts_duration(struct ieee80211_hw *hw, dur += ieee80211_frame_duration(local, 10, rate->rate, erp, short_preamble); + dev_put(bdev); return cpu_to_le16(dur); } EXPORT_SYMBOL(ieee80211_rts_duration); -__le16 ieee80211_ctstoself_duration(struct ieee80211_hw *hw, +__le16 ieee80211_ctstoself_duration(struct ieee80211_hw *hw, int if_id, size_t frame_len, const struct ieee80211_tx_control *frame_txctl) { struct ieee80211_local *local = hw_to_local(hw); struct ieee80211_rate *rate; - int short_preamble = local->short_preamble; + struct net_device *bdev = dev_get_by_index(if_id); + struct ieee80211_sub_if_data *sdata; + int short_preamble; int erp; u16 dur; + if (unlikely(!bdev)) + return 0; + + sdata = IEEE80211_DEV_TO_SUB_IF(bdev); + short_preamble = sdata->short_preamble; + rate = frame_txctl->rts_rate; erp = !!(rate->flags & IEEE80211_RATE_ERP); @@ -378,6 +402,7 @@ __le16 ieee80211_ctstoself_duration(struct ieee80211_hw *hw, erp, short_preamble); } + dev_put(bdev); return cpu_to_le16(dur); } EXPORT_SYMBOL(ieee80211_ctstoself_duration); |