diff options
Diffstat (limited to 'drivers/net/wireless/rt2x00/rt2x00dev.c')
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2x00dev.c | 35 |
1 files changed, 34 insertions, 1 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2x00dev.c b/drivers/net/wireless/rt2x00/rt2x00dev.c index 031aa2b..3de9875 100644 --- a/drivers/net/wireless/rt2x00/rt2x00dev.c +++ b/drivers/net/wireless/rt2x00/rt2x00dev.c @@ -33,6 +33,22 @@ #include "rt2x00lib.h" /* + * Utility functions. + */ +u32 rt2x00lib_get_bssidx(struct rt2x00_dev *rt2x00dev, + struct ieee80211_vif *vif) +{ + /* + * When in STA mode, bssidx is always 0 otherwise local_address[5] + * contains the bss number, see BSS_ID_MASK comments for details. + */ + if (rt2x00dev->intf_sta_count) + return 0; + return vif->addr[5] & (rt2x00dev->ops->max_ap_intf - 1); +} +EXPORT_SYMBOL_GPL(rt2x00lib_get_bssidx); + +/* * Radio control handlers. */ int rt2x00lib_enable_radio(struct rt2x00_dev *rt2x00dev) @@ -603,6 +619,18 @@ void rt2x00lib_rxdone(struct queue_entry *entry) rt2x00dev->ops->lib->fill_rxdone(entry, &rxdesc); /* + * Check for valid size in case we get corrupted descriptor from + * hardware. + */ + if (unlikely(rxdesc.size == 0 || + rxdesc.size > entry->queue->data_size)) { + ERROR(rt2x00dev, "Wrong frame size %d max %d.\n", + rxdesc.size, entry->queue->data_size); + dev_kfree_skb(entry->skb); + goto renew_skb; + } + + /* * The data behind the ieee80211 header must be * aligned on a 4 byte boundary. */ @@ -662,6 +690,7 @@ void rt2x00lib_rxdone(struct queue_entry *entry) ieee80211_rx_ni(rt2x00dev->hw, entry->skb); +renew_skb: /* * Replace the skb with the freshly allocated one. */ @@ -922,6 +951,11 @@ static int rt2x00lib_probe_hw(struct rt2x00_dev *rt2x00dev) rt2x00dev->hw->extra_tx_headroom += RT2X00_ALIGN_SIZE; /* + * Tell mac80211 about the size of our private STA structure. + */ + rt2x00dev->hw->sta_data_size = sizeof(struct rt2x00_sta); + + /* * Allocate tx status FIFO for driver use. */ if (test_bit(REQUIRE_TXSTATUS_FIFO, &rt2x00dev->cap_flags)) { @@ -953,7 +987,6 @@ static int rt2x00lib_probe_hw(struct rt2x00_dev *rt2x00dev) tasklet_init(&rt2x00dev->taskletname, \ rt2x00dev->ops->lib->taskletname, \ (unsigned long)rt2x00dev); \ - tasklet_disable(&rt2x00dev->taskletname); \ } RT2X00_TASKLET_INIT(txstatus_tasklet); |