This is a modification request for a note about empty kpatch:

An empty live patching package will be installed when there are no live patches available for a given kernel. An empty live patching package will have a kpatch_version-kpatch_release of 0-0, for example kpatch-patch-4_18_0-94-0-0.el8.x86_64.rpm. The installation of the empty RPM subscribes the system to all future live patches for the given kernel. 

I have noticed that customers have habit to check installed kpatches using kpatch list.
However, empty kpatch will not be present/listed in the output of kpatch list.
And hence, it can confuse customers that even after installing the kpatch-patch package, it is not listed under 'kpatch list' output.

Can we please add a one liner note at the end of this note that:
Empty kpatches will not be recorded under output of 'kpatch list'. Presence of empty kpatch can be checked using '#rpm -qa | grep kpatch' command.

Reported by: rhn-support-aratnapa

https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/managing_monitoring_and_updating_the_kernel/applying-patches-with-kernel-live-patching_managing-monitoring-and-updating-the-kernel#annotations:f2d99dd1-0c73-41e4-868d-7cbade1ff05f