diff options
| -rw-r--r-- | drivers/net/wireless/ath/key.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/net/wireless/ath/key.c b/drivers/net/wireless/ath/key.c index 1816b4e7dc26..59618bb41f6c 100644 --- a/drivers/net/wireless/ath/key.c +++ b/drivers/net/wireless/ath/key.c @@ -583,7 +583,16 @@ EXPORT_SYMBOL(ath_key_config); */ void ath_key_delete(struct ath_common *common, struct ieee80211_key_conf *key) { - ath_hw_keyreset(common, key->hw_key_idx); + /* Leave CCMP and TKIP (main key) configured to avoid disabling + * encryption for potentially pending frames already in a TXQ with the + * keyix pointing to this key entry. Instead, only clear the MAC address + * to prevent RX processing from using this key cache entry. + */ + if (test_bit(key->hw_key_idx, common->ccmp_keymap) || + test_bit(key->hw_key_idx, common->tkip_keymap)) + ath_hw_keysetmac(common, key->hw_key_idx, NULL); + else + ath_hw_keyreset(common, key->hw_key_idx); if (key->hw_key_idx < IEEE80211_WEP_NKID) return; |