1 files changed, 21 insertions, 1 deletions

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 2af52704e670..c5d16f299d6f 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -1195,6 +1195,10 @@ enum wiphy_flags {
         WIPHY_FLAG_4ADDR_STATION        = BIT(6),
 };
 
+struct mac_address {
+        u8 addr[ETH_ALEN];
+};
+
 /**
  * struct wiphy - wireless hardware description
  * @idx: the wiphy index assigned to this item
@@ -1213,12 +1217,28 @@ enum wiphy_flags {
  *      -1 = fragmentation disabled, only odd values >= 256 used
  * @rts_threshold: RTS threshold (dot11RTSThreshold); -1 = RTS/CTS disabled
  * @net: the network namespace this wiphy currently lives in
+ * @perm_addr: permanent MAC address of this device
+ * @addr_mask: If the device supports multiple MAC addresses by masking,
+ *      set this to a mask with variable bits set to 1, e.g. if the last
+ *      four bits are variable then set it to 00:...:00:0f. The actual
+ *      variable bits shall be determined by the interfaces added, with
+ *      interfaces not matching the mask being rejected to be brought up.
+ * @n_addresses: number of addresses in @addresses.
+ * @addresses: If the device has more than one address, set this pointer
+ *      to a list of addresses (6 bytes each). The first one will be used
+ *      by default for perm_addr. In this case, the mask should be set to
+ *      all-zeroes. In this case it is assumed that the device can handle
+ *      the same number of arbitrary MAC addresses.
  */
 struct wiphy {
         /* assign these fields before you register the wiphy */
 
-        /* permanent MAC address */
+        /* permanent MAC address(es) */
         u8 perm_addr[ETH_ALEN];
+        u8 addr_mask[ETH_ALEN];
+
+        u16 n_addresses;
+        struct mac_address *addresses;
 
         /* Supported interface modes, OR together BIT(NL80211_IFTYPE_...) */
         u16 interface_modes;