On Wed, 2023-06-21 at 07:00 +0200, Alexander Gordeev wrote: > AFAICT the MODULE_SIG_FORMAT dependency was introduced with commit > c8424e776b09 ("MODSIGN: Export module signature definitions") and > in fact was not necessary, since s390 did/does not use mod_check_sig() > anyway. So the SYSTEM_DATA_VERIFICATION could have left intact. FYI, this patch was included in the patch set to allow IMA to verify the kexec kernel image appended signature on OpenPOWER. -- thanks, Mimi