diff options
Diffstat (limited to 'drivers/net/wireless/ath9k/main.c')
| -rw-r--r-- | drivers/net/wireless/ath9k/main.c | 26 |
1 files changed, 12 insertions, 14 deletions
diff --git a/drivers/net/wireless/ath9k/main.c b/drivers/net/wireless/ath9k/main.c index b44736782ab..191eec50dc7 100644 --- a/drivers/net/wireless/ath9k/main.c +++ b/drivers/net/wireless/ath9k/main.c @@ -776,6 +776,18 @@ static int ath_reserve_key_cache_slot(struct ath_softc *sc) /* No partially used TKIP slots, pick any available slot */ for (i = IEEE80211_WEP_NKID; i < sc->sc_keymax; i++) { + /* Do not allow slots that could be needed for TKIP group keys + * to be used. This limitation could be removed if we know that + * TKIP will not be used. */ + if (i >= 64 && i < 64 + IEEE80211_WEP_NKID) + continue; + if (sc->sc_splitmic) { + if (i >= 32 && i < 32 + IEEE80211_WEP_NKID) + continue; + if (i >= 64 + 32 && i < 64 + 32 + IEEE80211_WEP_NKID) + continue; + } + if (!test_bit(i, sc->sc_keymap)) return i; /* Found a free slot for a key */ } @@ -1361,20 +1373,6 @@ static int ath_init(u16 devid, struct ath_softc *sc) */ for (i = 0; i < sc->sc_keymax; i++) ath9k_hw_keyreset(ah, (u16) i); - /* - * Mark key cache slots associated with global keys - * as in use. If we knew TKIP was not to be used we - * could leave the +32, +64, and +32+64 slots free. - */ - for (i = 0; i < IEEE80211_WEP_NKID; i++) { - set_bit(i, sc->sc_keymap); - set_bit(i + 64, sc->sc_keymap); - if (ath9k_hw_getcapability(ah, ATH9K_CAP_TKIP_SPLIT, - 0, NULL)) { - set_bit(i + 32, sc->sc_keymap); - set_bit(i + 32 + 64, sc->sc_keymap); - } - } /* Collect the channel list using the default country code */ |