Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm

[Michal Marek <mmarek@suse.com>]

On 2016-12-01 05:13, Don Zickus wrote:
> Sorry for chiming in late, but yes RHEL is a big user of MODVERSIONS for our
> kabi protection work.  Despite our best intentions we still have lots of
> partners and customers that provide value-add out-of-tree drivers to their
> customers.  These module builders requested we have a mechanism to allow
> rolling modules forward for each of our minor RHEL updates without breaking
> their drivers.

FWIW, in SLES we use CONFIG_MODVERSION for pretty much the same reasons
you listed. We also enable it in openSUSE, but there it's not as crucial.

Michal