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mt7603: main: fix warning in ieee80211_get_key_rx_seq()

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Fall back to software encryption for hw unsupported ciphers in order
to fix the following warning in ieee80211_get_key_rx_seq routine:

WARNING: CPU: 0 PID: 1546 at backports-2017-11-01/net/mac80211/key.c:1010
mt76_wcid_key_setup+0x6c/0x210 [mt76]
CPU: 0 PID: 1546 Comm: hostapd Not tainted 4.9.87 #0
        ...
Call Trace:
[<8000e220>] show_stack+0x70/0x8c
[<80023a34>] __warn+0x110/0x118
[<80023ad0>] warn_slowpath_null+0x1c/0x2c
[<871515c0>] mt76_wcid_key_setup+0x6c/0x210 [mt76]
[<870a0c94>] 0x870a0c94
---[ end trace 1a391bb242f6a068 ]---

Signed-off-by: Lorenzo Bianconi <[email protected]>
This commit is contained in:
Lorenzo Bianconi
2018-03-28 16:34:21 +02:00
committed by Felix Fietkau
parent 238f3f1c2d
commit 880611b041
1 changed files with 11 additions and 0 deletions
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mt7603_main.c
+11
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@@ -343,6 +343,17 @@ mt7603_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
struct mt76_wcid *wcid = msta ? &msta->wcid : &mvif->wcid;
int idx = key->keyidx;
/* fall back to sw encryption for unsupported ciphers */
switch (key->cipher) {
case WLAN_CIPHER_SUITE_WEP40:
case WLAN_CIPHER_SUITE_WEP104:
case WLAN_CIPHER_SUITE_TKIP:
case WLAN_CIPHER_SUITE_CCMP:
break;
default:
return -EOPNOTSUPP;
}
/*
* The hardware does not support per-STA RX GTK, fall back
* to software mode for these.