On Sun, 20 Nov 2016 19:26:23 +0100
Peter Wu [off-list ref] wrote:

Hi Nicholas,

Current git master (v4.9-rc5-364-g77079b1) with the latest kbuild fixes
is still failing to load modules when built with CONFIG_MODVERSIONS=y on
x86_64 using GCC 6.2.1.

It can still be reproduced with make defconfig, then enabling
CONFIG_MODVERSIONS=y. The build output contains:

    WARNING: "memcpy" [net/netfilter/nf_nat.ko] has no CRC!
    WARNING: "memmove" [net/netfilter/nf_nat.ko] has no CRC!
    WARNING: "_copy_to_user" [fs/efivarfs/efivarfs.ko] has no CRC!
    WARNING: "memcpy" [fs/efivarfs/efivarfs.ko] has no CRC!
    WARNING: "_copy_from_user" [fs/efivarfs/efivarfs.ko] has no CRC!

Hi Peter,

Sorry it's taken some time, bear with us. The arch specific patches need
to be merged now. Adam, what is the status of your patch? Please submit
to x86 maintainers if you haven't already.

Thanks,
Nick