versions using ioctl is not possible to insert to the kernel

[vysocky]

We have two system using the same CentOS 7 with old kernel (3.10.0-1160.80.1.el7.x86_64). One of the systems works perfectly with the master version of the amd_hsmp, however the other one (2x7763 + 8x A100 per node) fails when inserting the kernel module. It results in the following error:

insmod: ERROR: could not insert module amd_hsmp/4276242/amd_hsmp.ko: No such device

I have tested older versions of the code, and found out that only the very old version without ioctl interface (5d590b22fa29f5e65c311f7711218038fcd784eb) is possible to insert, and works fine.

Do you have a clue why the ioctl versions do not work? Thanks @nchatrad