default or selected kernelversion does not have config value CONFIG_NFT_SET_RBTREE.
Result is shown for kernelversion 6.7-rc3
Netfilter nf_tables rbtree set module
modulename: nft_set_rbtree.ko
configname: CONFIG_NFT_SET_RBTREE
Linux Kernel Configuration
└─>Networking support
└─>Networking options
└─>Network packet filtering framework (Netfilter)
└─>Core Netfilter Configuration
└─>Netfilter nf_tables rbtree set module
In linux kernel since version 4.1 (release Date: 2015-06-21)
This option adds the "rbtree" set type (Red Black tree) that is used
to build interval-based sets.
to build interval-based sets.