Commit 87b016cb authored by Zhu Yi's avatar Zhu Yi Committed by James Ketrenos

Workaround kernel BUG_ON panic caused by unexpected duplicate packets.

Signed-off-by: default avatarZhu Yi <yi.zhu@intel.com>
parent 4f36f808
...@@ -7696,7 +7696,6 @@ static inline int is_network_packet(struct ipw_priv *priv, ...@@ -7696,7 +7696,6 @@ static inline int is_network_packet(struct ipw_priv *priv,
static inline int is_duplicate_packet(struct ipw_priv *priv, static inline int is_duplicate_packet(struct ipw_priv *priv,
struct ieee80211_hdr_4addr *header) struct ieee80211_hdr_4addr *header)
{ {
u16 fc = le16_to_cpu(header->frame_ctl);
u16 sc = le16_to_cpu(header->seq_ctl); u16 sc = le16_to_cpu(header->seq_ctl);
u16 seq = WLAN_GET_SEQ_SEQ(sc); u16 seq = WLAN_GET_SEQ_SEQ(sc);
u16 frag = WLAN_GET_SEQ_FRAG(sc); u16 frag = WLAN_GET_SEQ_FRAG(sc);
...@@ -7760,7 +7759,10 @@ static inline int is_duplicate_packet(struct ipw_priv *priv, ...@@ -7760,7 +7759,10 @@ static inline int is_duplicate_packet(struct ipw_priv *priv,
return 0; return 0;
drop: 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; return 1;
} }
......
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