diff options
Diffstat (limited to 'drivers/net/wireless/b43/xmit.c')
| -rw-r--r-- | drivers/net/wireless/b43/xmit.c | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/drivers/net/wireless/b43/xmit.c b/drivers/net/wireless/b43/xmit.c index eae9b805265..a63d88841df 100644 --- a/drivers/net/wireless/b43/xmit.c +++ b/drivers/net/wireless/b43/xmit.c @@ -50,7 +50,7 @@ static int b43_plcp_get_bitrate_idx_cck(struct b43_plcp_hdr6 *plcp) } /* Extract the bitrate index out of an OFDM PLCP header. */ -static u8 b43_plcp_get_bitrate_idx_ofdm(struct b43_plcp_hdr6 *plcp, bool aphy) +static int b43_plcp_get_bitrate_idx_ofdm(struct b43_plcp_hdr6 *plcp, bool aphy) { int base = aphy ? 0 : 4; @@ -538,8 +538,14 @@ void b43_rx(struct b43_wldev *dev, struct sk_buff *skb, const void *_rxhdr) chanstat = le16_to_cpu(rxhdr->channel); phytype = chanstat & B43_RX_CHAN_PHYTYPE; - if (macstat & B43_RX_MAC_FCSERR) + if (unlikely(macstat & B43_RX_MAC_FCSERR)) { dev->wl->ieee_stats.dot11FCSErrorCount++; + status.flag |= RX_FLAG_FAILED_FCS_CRC; + } + if (unlikely(phystat0 & (B43_RX_PHYST0_PLCPHCF | B43_RX_PHYST0_PLCPFV))) + status.flag |= RX_FLAG_FAILED_PLCP_CRC; + if (phystat0 & B43_RX_PHYST0_SHORTPRMBL) + status.flag |= RX_FLAG_SHORTPRE; if (macstat & B43_RX_MAC_DECERR) { /* Decryption with the given key failed. * Drop the packet. We also won't be able to decrypt it with @@ -606,8 +612,12 @@ void b43_rx(struct b43_wldev *dev, struct sk_buff *skb, const void *_rxhdr) phytype == B43_PHYTYPE_A); else status.rate_idx = b43_plcp_get_bitrate_idx_cck(plcp); - if (unlikely(status.rate_idx == -1)) - goto drop; + if (unlikely(status.rate_idx == -1)) { + /* PLCP seems to be corrupted. + * Drop the frame, if we are not interested in corrupted frames. */ + if (!(dev->wl->filter_flags & FIF_PLCPFAIL)) + goto drop; + } status.antenna = !!(phystat0 & B43_RX_PHYST0_ANT); /* @@ -661,7 +671,6 @@ void b43_rx(struct b43_wldev *dev, struct sk_buff *skb, const void *_rxhdr) goto drop; } - dev->stats.last_rx = jiffies; ieee80211_rx_irqsafe(dev->wl->hw, skb, &status); return; |