Re: [PATCH bpf-next v1 0/8] bpf: magic kernel functions

Eduard Zingerman
2025-10-30T00:44:10Z

On Wed, 2025-10-29 at 12:01 -0700, Ihor Solodrai wrote:

Do we break compatibility with old pahole versions after this
patch-set? Old paholes won't synthesize the _impl kfuncs, so:
- binary compatibility between new-kernel/old-pahole + old-bpf
will be broken, as there would be no _impl kfuncs;
- new-kernel/old-pahole + new-bpf won't work either, as kernel will be
unable to find non-_impl function names for existing kfuncs. …