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mt76: mt7615: fix potential overflow on large shift

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Fix the following static checker warning:
error: undefined (user controlled) shift '(((1))) << (c->omac_idx)'

Fixes: 402a695b1ae6 ("mt76: mt7615: fix CSA notification for DBDC")
Reported-by: Dan Carpenter <[email protected]>
Signed-off-by: Ryder Lee <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
This commit is contained in:
Ryder Lee
2021-05-28 11:54:16 +02:00
committed by Felix Fietkau
parent a976345260
commit 4aef2a2be4
1 changed files with 3 additions and 0 deletions
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mt7615/mcu.c
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@@ -411,6 +411,9 @@ mt7615_mcu_rx_csa_notify(struct mt7615_dev *dev, struct sk_buff *skb)
c = (struct mt7615_mcu_csa_notify *)skb->data;
if (c->omac_idx > EXT_BSSID_MAX)
return;
if (ext_phy && ext_phy->omac_mask & BIT_ULL(c->omac_idx))
mphy = dev->mt76.phy2;