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ath6kl: use custom MAC address for newly created interfaces

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Firmware and driver generate MAC addresses for the second and third interfaces.
In addition to the existing algorithm, flip bit 7 of 5th octet. Since both
firmware and driver individually generate the MAC addresses, introduce a new
firmware capability bit to keep them compatible.

Signed-off-by: Aarthi Thiruvengadam <athiruve@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This commit is contained in:
Aarthi Thiruvengadam 2012-07-10 13:20:40 -07:00 committed by Kalle Valo
parent 85b20fc242
commit c95dcb595d
2 changed files with 8 additions and 1 deletions
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6
drivers/net/wireless/ath/ath6kl/cfg80211.c
View File

@ -3523,9 +3523,13 @@ struct wireless_dev *ath6kl_interface_add(struct ath6kl *ar, const char *name,
vif->htcap[IEEE80211_BAND_5GHZ].ht_enable = true;
memcpy(ndev->dev_addr, ar->mac_addr, ETH_ALEN);
if (fw_vif_idx != 0)
if (fw_vif_idx != 0) {
ndev->dev_addr[0] = (ndev->dev_addr[0] ^ (1 << fw_vif_idx)) |
0x2;
if (test_bit(ATH6KL_FW_CAPABILITY_CUSTOM_MAC_ADDR,
ar->fw_capabilities))
ndev->dev_addr[4] ^= 0x80;
}
init_netdev(ndev);

3
drivers/net/wireless/ath/ath6kl/core.h
View File

@ -118,6 +118,9 @@ enum ath6kl_fw_capability {
/* Firmware supports filtering BSS results by RSSI */
ATH6KL_FW_CAPABILITY_RSSI_SCAN_THOLD,
/* FW sets mac_addr[4] ^= 0x80 for newly created interfaces */
ATH6KL_FW_CAPABILITY_CUSTOM_MAC_ADDR,
/* this needs to be last */
ATH6KL_FW_CAPABILITY_MAX,
};