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ath9k: don't strip mic on non-encrypted frames in tkip 

Fix the following bug: in tkip mode, qos-null ps on/off packets
are dropped due to incorrect packet length so that ath9k softap
can't handle powersave state transition of peer STA correctly.

Signed-off-by: Michael Liang <mliang@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Michael Liang 2012-04-20 17:11:57 +08:00 committed by John W. Linville
parent e0602750ab
commit 2a5783b817
1 changed files with 1 additions and 0 deletions
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1
drivers/net/wireless/ath/ath9k/recv.c
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@ -812,6 +812,7 @@ static bool ath9k_rx_accept(struct ath_common *common,
is_valid_tkip = rx_stats->rs_keyix != ATH9K_RXKEYIX_INVALID &&
test_bit(rx_stats->rs_keyix, common->tkip_keymap);
strip_mic = is_valid_tkip && ieee80211_is_data(fc) &&
ieee80211_has_protected(fc) &&
!(rx_stats->rs_status &
(ATH9K_RXERR_DECRYPT | ATH9K_RXERR_CRC | ATH9K_RXERR_MIC |
ATH9K_RXERR_KEYMISS));