[6.11] sysctl table check failed

[ossimoi]

Type	Version/Name
Distribution Name	Gentoo
Distribution Version	2.15
Kernel Version	6.11.2
Architecture	x86_64
OpenZFS Version	ab777f436ce228559f3c2480ebe8a6b5ab888c43

Modprobing zfs fails with:

sysctl table check failed: kernel/spl/(null) procname is null
sysctl table check failed: kernel/spl/(null) No proc_handler