ath9k: assign keycache slots to unencrypted stations
Frame filtering relies on having a valid destination index (keycache slot),
to keep track of the destination. Assigning a keycache slot (configured
to unencrypted, with no key data attached) improves powersave handling in
AP mode with no encryption.
The dummy keycache entry for a station is cleared, when a real key gets
added.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/key.c b/drivers/net/wireless/ath/key.c
index 0d4f39c..a61ef3d6 100644
--- a/drivers/net/wireless/ath/key.c
+++ b/drivers/net/wireless/ath/key.c
@@ -483,6 +483,9 @@
memset(&hk, 0, sizeof(hk));
switch (key->cipher) {
+ case 0:
+ hk.kv_type = ATH_CIPHER_CLR;
+ break;
case WLAN_CIPHER_SUITE_WEP40:
case WLAN_CIPHER_SUITE_WEP104:
hk.kv_type = ATH_CIPHER_WEP;
@@ -498,7 +501,8 @@
}
hk.kv_len = key->keylen;
- memcpy(hk.kv_val, key->key, key->keylen);
+ if (key->keylen)
+ memcpy(hk.kv_val, key->key, key->keylen);
if (!(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) {
switch (vif->type) {