default or selected kernelversion does not have config value CONFIG_IEEE80211.
Result is shown for kernelversion 5.4.123

Generic IEEE 802.11 Networking Stack

modulename: ieee80211.ko

and/or

ieee80211_crypt.ko

configname: CONFIG_IEEE80211

Linux Kernel Configuration
└─>Networking
└─>Generic IEEE 802.11 Networking Stack
In linux kernel since version 2.6.14 (release Date: 2005-10-27)  
This option enables the hardware independent IEEE 802.11
networking stack.

source code:
net/ieee80211/
depends
CONFIG_NET