package/mac80211/patches/520-ath0k_hw_mcast_search.patch

   1 --- a/drivers/net/wireless/ath/ath9k/hw.c
   2 +++ b/drivers/net/wireless/ath/ath9k/hw.c
   3 @@ -1497,6 +1497,7 @@ EXPORT_SYMBOL(ath9k_hw_keyreset);
   4  bool ath9k_hw_keysetmac(struct ath_hw *ah, u16 entry, const u8 *mac)
   5  {
   6         u32 macHi, macLo;
   7 +       u32 unicast_flag = AR_KEYTABLE_VALID;
   8
   9         if (entry >= ah->caps.keycache_size) {
  10                 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
  11 @@ -1505,6 +1506,16 @@ bool ath9k_hw_keysetmac(struct ath_hw *a
  12         }
  13
  14         if (mac != NULL) {
  15 +               /*
  16 +                * AR_KEYTABLE_VALID indicates that the address is a unicast
  17 +                * address, which must match the transmitter address for
  18 +                * decrypting frames.
  19 +                * Not setting this bit allows the hardware to use the key
  20 +                * for multicast frame decryption.
  21 +                */
  22 +               if (mac[0] & 0x01)
  23 +                       unicast_flag = 0;
  24 +
  25                 macHi = (mac[5] << 8) | mac[4];
  26                 macLo = (mac[3] << 24) |
  27                         (mac[2] << 16) |
  28 @@ -1517,7 +1528,7 @@ bool ath9k_hw_keysetmac(struct ath_hw *a
  29                 macLo = macHi = 0;
  30         }
  31         REG_WRITE(ah, AR_KEYTABLE_MAC0(entry), macLo);
  32 -       REG_WRITE(ah, AR_KEYTABLE_MAC1(entry), macHi | AR_KEYTABLE_VALID);
  33 +       REG_WRITE(ah, AR_KEYTABLE_MAC1(entry), macHi | unicast_flag);
  34
  35         return true;
  36  }