I frequently run into this warning, and added some
debugging to see why, and got this:
b43 bad rx: 00000000: 2f d2 e2 63 cf a7 14 04 28 18 c8 5f 88 4a a2 00
bogus junk | plcp | fctl| dur
b43 bad rx: 00000010: 00 11 24 91 07 4d 00 06 25 ff 8f 78 00 06 25 ff
my MAC address | BSSID | AP MAC
b43 bad rx: 00000020: 8f 76 20 74 00 00 42 07 00 20 00 00 00 00 aa aa
| seq | QoS | CCMP IV | data
...
As you can see, there are 6 bogus bytes (sometimes only five) and then
the frame. I don't know why, and I don't see how to recover, so let's
just drop these frames.
Signed-off-by: Johannes Berg <johannes@xxxxxxxxxxxxxxxx>
---
drivers/net/wireless/b43/xmit.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- everything.orig/drivers/net/wireless/b43/xmit.c 2008-11-06 16:52:53.000000000 +0100
+++ everything/drivers/net/wireless/b43/xmit.c 2008-11-06 17:10:06.000000000 +0100
@@ -46,7 +46,6 @@ static int b43_plcp_get_bitrate_idx_cck(
case 0x6E:
return 3;
}
- B43_WARN_ON(1);
return -1;
}
@@ -73,7 +72,6 @@ static u8 b43_plcp_get_bitrate_idx_ofdm(
case 0xC:
return base + 7;
}
- B43_WARN_ON(1);
return -1;
}
@@ -608,6 +606,8 @@ void b43_rx(struct b43_wldev *dev, struc
phytype == B43_PHYTYPE_A);
else
status.rate_idx = b43_plcp_get_bitrate_idx_cck(plcp);
+ if (unlikely(status.rate_idx == -1))
+ goto drop;
status.antenna = !!(phystat0 & B43_RX_PHYST0_ANT);
/*
--
To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
