Making this depend on KEXEC would be most unfortunate. This is valuable information for finding all kinds of issues even in the absence of KEXEC.
Agreed.
I really don't see a point in making this configurable, except perhaps under CONFIG_EMBEDDED.
I think we should just not put this functionality under any CONFIG option.
If we put it under CONFIG_EMBEDDED, then even for using kexec, one
shall have to turn CONFIG_EMBEDDED on which probably does not make much
sense.