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authorZhu Yi <chuyee@debian.sh.intel.com>2005-08-05 17:17:35 +0800
committerJames Ketrenos <jketreno@linux.intel.com>2005-11-07 17:50:34 -0600
commit87b016cb64b267a6f791494a4cfd84e84e022ebb (patch)
treeed62edcd2685229da636be3e605a309e89759607 /drivers/net/wireless/ipw2200.c
parent4f36f8088ada6c63719a970616078887f82e226c (diff)
Workaround kernel BUG_ON panic caused by unexpected duplicate packets.
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Diffstat (limited to 'drivers/net/wireless/ipw2200.c')
-rw-r--r--drivers/net/wireless/ipw2200.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/net/wireless/ipw2200.c b/drivers/net/wireless/ipw2200.c
index 6e79ae24ee1..483993a4ca4 100644
--- a/drivers/net/wireless/ipw2200.c
+++ b/drivers/net/wireless/ipw2200.c
@@ -7696,7 +7696,6 @@ static inline int is_network_packet(struct ipw_priv *priv,
static inline int is_duplicate_packet(struct ipw_priv *priv,
struct ieee80211_hdr_4addr *header)
{
- u16 fc = le16_to_cpu(header->frame_ctl);
u16 sc = le16_to_cpu(header->seq_ctl);
u16 seq = WLAN_GET_SEQ_SEQ(sc);
u16 frag = WLAN_GET_SEQ_FRAG(sc);
@@ -7760,7 +7759,10 @@ static inline int is_duplicate_packet(struct ipw_priv *priv,
return 0;
drop:
- BUG_ON(!(fc & IEEE80211_FCTL_RETRY));
+ /* Comment this line now since we observed the card receives
+ * duplicate packets but the FCTL_RETRY bit is not set in the
+ * IBSS mode with fragmentation enabled.
+ BUG_ON(!(le16_to_cpu(header->frame_ctl) & IEEE80211_FCTL_RETRY)); */
return 1;
}