CONFIG_ACCESS_CHECK is not available for thedefaultarchitecture x86.
Result is shown for architecture c6x
default or selected kernelversion does not have config value CONFIG_ACCESS_CHECK.
Result is shown for kernelversion 6.9.5

Check the user pointer address

configname: CONFIG_ACCESS_CHECK

Linux Kernel Configuration
└─>Check the user pointer address
In linux kernel since version 2.6.24 (release Date: 2008-01-24)  
Usually the pointer transfer from user space is checked to see if its
address is in the kernel space.

Say N here to disable that check to improve the performance.