Since Linux 4.18 CONFIG_AUTOFS4_FS just enables CONFIG_AUTOFS_FS, its description in fs/autofs/Kconfig reads: This name exists for people to just automatically pick up the new name of the autofs Kconfig option. All it does is select the new option name. It will go away in a release or two as people have transitioned to just plain AUTOFS_FS.
System and Service Manager
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