default or selected kernelversion does not have config value CONFIG_ATM_FORE200E_DEBUG.
Result is shown for kernelversion 6.0-rc7

Debugging level (0-3)


Linux Kernel Configuration
└─> Device Drivers
└─> Network device support
└─> ATM drivers
└─> Debugging level (0-3)

Specifies the level of debugging messages issued by the driver.
The verbosity of the driver increases with the value of this

When active, these messages can have a significant impact on
the performances of the driver, and the size of your syslog files!
Keep the debugging level to 0 during normal operations.