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--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -1497,6 +1497,7 @@ EXPORT_SYMBOL(ath9k_hw_keyreset);
bool ath9k_hw_keysetmac(struct ath_hw *ah, u16 entry, const u8 *mac)
{
u32 macHi, macLo;
+ u32 unicast_flag = AR_KEYTABLE_VALID;
if (entry >= ah->caps.keycache_size) {
ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
@@ -1505,6 +1506,16 @@ bool ath9k_hw_keysetmac(struct ath_hw *a
}
if (mac != NULL) {
+ /*
+ * AR_KEYTABLE_VALID indicates that the address is a unicast
+ * address, which must match the transmitter address for
+ * decrypting frames.
+ * Not setting this bit allows the hardware to use the key
+ * for multicast frame decryption.
+ */
+ if (mac[0] & 0x01)
+ unicast_flag = 0;
+
macHi = (mac[5] << 8) | mac[4];
macLo = (mac[3] << 24) |
(mac[2] << 16) |
@@ -1517,7 +1528,7 @@ bool ath9k_hw_keysetmac(struct ath_hw *a
macLo = macHi = 0;
}
REG_WRITE(ah, AR_KEYTABLE_MAC0(entry), macLo);
- REG_WRITE(ah, AR_KEYTABLE_MAC1(entry), macHi | AR_KEYTABLE_VALID);
+ REG_WRITE(ah, AR_KEYTABLE_MAC1(entry), macHi | unicast_flag);
return true;
}
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