default or selected kernelversion does not have config value CONFIG_WWAN_CORE.
Result is shown for kernelversion 5.14.15
WWAN Driver Core
modulename: wwan.ko
configname: CONFIG_WWAN_CORE
Linux Kernel Configuration
└─>Device Drivers
└─>Network device support
└─>Wireless WAN
└─>WWAN Driver Core
In linux kernel since version 5.13 (release Date: 2021-06-27)
Say Y here if you want to use the WWAN driver core. This driver
provides a common framework for WWAN drivers.
To compile this driver as a module, choose M here: the module will be
called wwan.
provides a common framework for WWAN drivers.
To compile this driver as a module, choose M here: the module will be
called wwan.