The following commits:
c815fde wlcore: spi: Populate config firmware data
d776fc8 wlcore: sdio: Populate config firmware data

Populated the nvs entry for wilink6 and wilink7 only while it is
still needed for wilink8 as well.
This broke user space backward compatibility when upgrading from older
kernels, as the alternate mac address would not be read from the nvs that
is present in the file system (lib/firmware/ti-connectivity/wl1271-nvs.bin)
causing mac address change of the wlan interface.

This patch fix this and update the structure field with the same default
nvs file name that has been used before.

In addition, some distros hold a default wl1271-nvs.bin in the file
system with a bogus mac address (deadbeef...) that for a wl18xx device
also overrides the mac address that is stored inside the device.
Warn users about this bogus mac address and use a random mac instead

Cc: stable <redacted>
Signed-off-by: Eyal Reizer <redacted>
---

diff --git a/drivers/net/wireless/ti/wlcore/main.c b/drivers/net/wireless/ti/wlcore/main.c
index 60aaa85..7ce4221 100644
--- a/drivers/net/wireless/ti/wlcore/main.c
+++ b/drivers/net/wireless/ti/wlcore/main.c

@@ -5961,6 +5961,22 @@ static void wl12xx_derive_mac_addresses(struct wl1271 *wl, u32 oui, u32 nic)
        if (nic + WLCORE_NUM_MAC_ADDRESSES - wl->num_mac_addr > 0xffffff)
                wl1271_warning("NIC part of the MAC address wraps around!");

+       if (oui == 0xdeadbe && nic == 0xef0000) {
+               wl1271_warning("Detected unconfigured mac address in nvs.\n"
+                               "Using a random TI mac address instead.\n"
+                               "in case of using a wl12xx device, your "
+                               "device performance may not be optimized.\n"
+                               "Please use the calibrator tool to configure "
+                               "your device.\n"
+                               "When using a wl18xx device the nvs file can "
+                               "be removed as a default mac address is "
+                               "stored internally.\n");
+
+               /* Use TI oui and a random nic */
+               oui = 0x080028;