Hi Florian,
I love your patch! Perhaps something to improve:
[auto build test WARNING on ipsec-next/master]
url:
https://github.com/0day-ci/linux/commits/Florian-Westphal/xfrm-remove-xfrm_mode-indirections/20190329-041949
base: https://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec
after previous changes, xfrm_mode contains no function pointers anymore
and all modules defining such struct contain no code except an init/exit
functions to register the xfrm_mode struct with the xfrm core.
Just place the xfrm modes core and remove the modules,
the run-time xfrm_mode register/unr
