Comment 2 for bug 1859269

One found.

commit b86deba977a91aaa5a4b725d7b42970e6de28d2c
Author: Michal Kalderon <email address hidden>
Date: Wed Oct 30 11:44:10 2019 +0200

    RDMA/core: Move core content from ib_uverbs to ib_core

    Move functionality that is called by the driver, which is
    related to umap, to a new file that will be linked in ib_core.
    This is a first step in later enabling ib_uverbs to be optional.
    vm_ops is now initialized in ib_uverbs_mmap instead of
    priv_init to avoid having to move all the rdma_umap functions
    as well.