default or selected kernelversion does not have config value CONFIG_RWSEM_XCHGADD_ALGORITHM.
Result is shown for kernelversion 6.9.9

CONFIG_RWSEM_XCHGADD_ALGORITHM (not configurable)

modulename: rwsem-xadd.ko

configname: CONFIG_RWSEM_XCHGADD_ALGORITHM

Linux Kernel Configuration
└─>RWSEM_XCHGADD_ALGORITHM
In linux kernel since version 2.6.12