From: Zhu Yi Date: Fri, 5 Aug 2005 09:17:35 +0000 (+0800) Subject: Workaround kernel BUG_ON panic caused by unexpected duplicate packets. X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=87b016cb64b267a6f791494a4cfd84e84e022ebb;p=linux-beck.git Workaround kernel BUG_ON panic caused by unexpected duplicate packets. Signed-off-by: Zhu Yi --- diff --git a/drivers/net/wireless/ipw2200.c b/drivers/net/wireless/ipw2200.c index 6e79ae24ee1c..483993a4ca4b 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; }