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path: root/drivers/net/wireless/b43/xmit.c
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Diffstat (limited to 'drivers/net/wireless/b43/xmit.c')
-rw-r--r--drivers/net/wireless/b43/xmit.c19
1 files changed, 14 insertions, 5 deletions
diff --git a/drivers/net/wireless/b43/xmit.c b/drivers/net/wireless/b43/xmit.c
index eae9b8052658..a63d88841df8 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;