On Tue, 30 Aug 2016 11:59:57 +0530, Gurpartap Singh said:

> I am using Quectel gsm module on Arm board from olimex. While attaching the
> Device via USB, dmesg shows following:
>
> *qmi_wwan 2-1:1.0: not on our whitelist - ignored*

drivers/net/usb/qmi_wwan.c has a list of devices the driver is iwlling
to support.  Apparently, your USB device isn't listed.

Look at static const struct usb_device_id products[] = {
near like 541.