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

CONFIG_HAVE_NET_DSA (not configurable)

configname: CONFIG_HAVE_NET_DSA

Linux Kernel Configuration
└─>Networking support
└─>Networking options
└─>HAVE_NET_DSA
In linux kernel since version 3.1 (release Date: 2011-10-24)