default or selected kernelversion does not have config value CONFIG_IBMLS.
Result is shown for kernelversion 6.2.5

IBM Lanstreamer chipset PCI adapter support

modulename: lanstreamer.ko

configname: CONFIG_IBMLS

Linux Kernel Configuration
└─>Device Drivers
└─>Network device support
└─>Token Ring driver support
└─>IBM Lanstreamer chipset PCI adapter support
In linux kernel since version 2.6.12  
This is support for IBM Lanstreamer PCI Token Ring Cards.

If you have such an adapter, say Y and read the Token-Ring
mini-HOWTO, available from <>.

To compile this driver as a module, choose M here: the module will be
called lanstreamer.

source code: