diff mbox

mt76x2: fix warning in ieee80211_get_key_rx_seq()

Message ID 20180317140139.24724-1-lorenzo.bianconi@redhat.com (mailing list archive)
State Accepted
Commit c03a5aacde0c86f6dabab8f17a6d1911ee13b6c4
Delegated to: Kalle Valo
Headers show

Commit Message

Lorenzo Bianconi March 17, 2018, 2:01 p.m. UTC
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: 1 PID: 1277 at backports-2017-11-01/net/mac80211/key.c:
1010 mt76_wcid_key_setup+0x6c/0x138 [mt76]
CPU: 1 PID: 1277 Comm: hostapd Tainted: G        W       4.9.86 #0
Stack : 00000000 00000000 80527b4a 00000042 80523824 00000000 00000000 80520000
        8fd79a9c 804bbda7 80454c84 00000001 000004fd 80523824 8f7e4ba0 8eceda12
        00000010 8006af94 00000001 80520000 804c1f04 804c1f08 80459890 8ec999b4
        00000003 800a7840 8f7e4ba0 8eceda12 8121de20 00000000 00000001 00c999b4
        00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
        ...
Call Trace:
[<8000f52c>] show_stack+0x70/0x8c
[<801d8d04>] dump_stack+0x94/0xd0
[<8002bcd4>] __warn+0x110/0x118
[<8002bd70>] warn_slowpath_null+0x1c/0x2c
[<8f0415cc>] mt76_wcid_key_setup+0x6c/0x138 [mt76]
[<8f1311b4>] mt76x2_dma_cleanup+0xa38/0x1048 [mt76x2e]

Fixes: 30ce7f4456ae ("mt76: validate rx CCMP PN")
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
---
 drivers/net/wireless/mediatek/mt76/mt76x2_main.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

Comments

Felix Fietkau March 17, 2018, 9:03 p.m. UTC | #1
On 2018-03-17 15:01, Lorenzo Bianconi wrote:
> 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: 1 PID: 1277 at backports-2017-11-01/net/mac80211/key.c:
> 1010 mt76_wcid_key_setup+0x6c/0x138 [mt76]
> CPU: 1 PID: 1277 Comm: hostapd Tainted: G        W       4.9.86 #0
> Stack : 00000000 00000000 80527b4a 00000042 80523824 00000000 00000000 80520000
>         8fd79a9c 804bbda7 80454c84 00000001 000004fd 80523824 8f7e4ba0 8eceda12
>         00000010 8006af94 00000001 80520000 804c1f04 804c1f08 80459890 8ec999b4
>         00000003 800a7840 8f7e4ba0 8eceda12 8121de20 00000000 00000001 00c999b4
>         00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
>         ...
> Call Trace:
> [<8000f52c>] show_stack+0x70/0x8c
> [<801d8d04>] dump_stack+0x94/0xd0
> [<8002bcd4>] __warn+0x110/0x118
> [<8002bd70>] warn_slowpath_null+0x1c/0x2c
> [<8f0415cc>] mt76_wcid_key_setup+0x6c/0x138 [mt76]
> [<8f1311b4>] mt76x2_dma_cleanup+0xa38/0x1048 [mt76x2e]
> 
> Fixes: 30ce7f4456ae ("mt76: validate rx CCMP PN")
> Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Acked-by: Felix Fietkau <nbd@nbd.name>
Kalle Valo March 27, 2018, 9:13 a.m. UTC | #2
Lorenzo Bianconi <lorenzo.bianconi@redhat.com> wrote:

> 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: 1 PID: 1277 at backports-2017-11-01/net/mac80211/key.c:
> 1010 mt76_wcid_key_setup+0x6c/0x138 [mt76]
> CPU: 1 PID: 1277 Comm: hostapd Tainted: G        W       4.9.86 #0
> Stack : 00000000 00000000 80527b4a 00000042 80523824 00000000 00000000 80520000
>         8fd79a9c 804bbda7 80454c84 00000001 000004fd 80523824 8f7e4ba0 8eceda12
>         00000010 8006af94 00000001 80520000 804c1f04 804c1f08 80459890 8ec999b4
>         00000003 800a7840 8f7e4ba0 8eceda12 8121de20 00000000 00000001 00c999b4
>         00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
>         ...
> Call Trace:
> [<8000f52c>] show_stack+0x70/0x8c
> [<801d8d04>] dump_stack+0x94/0xd0
> [<8002bcd4>] __warn+0x110/0x118
> [<8002bd70>] warn_slowpath_null+0x1c/0x2c
> [<8f0415cc>] mt76_wcid_key_setup+0x6c/0x138 [mt76]
> [<8f1311b4>] mt76x2_dma_cleanup+0xa38/0x1048 [mt76x2e]
> 
> Fixes: 30ce7f4456ae ("mt76: validate rx CCMP PN")
> Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
> Acked-by: Felix Fietkau <nbd@nbd.name>

Patch applied to wireless-drivers-next.git, thanks.

c03a5aacde0c mt76x2: fix warning in ieee80211_get_key_rx_seq()
diff mbox

Patch

diff --git a/drivers/net/wireless/mediatek/mt76/mt76x2_main.c b/drivers/net/wireless/mediatek/mt76/mt76x2_main.c
index 25f4cebef26d..73c127f92613 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76x2_main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76x2_main.c
@@ -336,6 +336,17 @@  mt76x2_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 	int idx = key->keyidx;
 	int ret;
 
+	/* 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.