Re: [PATCH bpf-next v2 0/2] Add resolve_btfids support for __arena kfunc suffix

[Ihor Solodrai <ihor.solodrai@linux.dev>]

On 8/12/26 12:38 PM, Kumar Kartikeya Dwivedi wrote:
> Use __arena/__arena__nullable suffixes to emit address_space(1)
> annotations on kfunc definitions in vmlinux.h. See commits for details.
> 
> Changelog:
> ----------
> v1 -> v2
> v1: https://lore.kernel.org/bpf/20260809085155.3305519-1-memxor@gmail.com
> 
>  * Avoid enumerating all the ways resolve_btfids can emit the
>    "address_space(1)" attribute in its header comment and in kfuncs.rst.
>    (Ihor)
>  * Drop the kfunc_has_arena_arg() helper: add_arena_tagged_proto()
>    returns the original prototype when nothing needs tagging, so it can
>    be invoked unconditionally for every kfunc. (Ihor)
>  * Add resolve_btfids selftest cases with mixed tagged and untagged
>    arguments, and a kfunc that combines the KF_ARENA_RET flag with
>    suffixed arena arguments. (Ihor)

For the series:

Acked-by: Ihor Solodrai <ihor.solodrai@linux.dev>

Thanks!

> 
> Kumar Kartikeya Dwivedi (2):
>   resolve_btfids: Emit arena attributes from kfunc parameter suffixes
>   selftests/bpf: Test resolve_btfids arena argument suffixes
> 
>  Documentation/bpf/kfuncs.rst                  |  4 +-
>  tools/bpf/resolve_btfids/main.c               | 72 +++++++++++++------
>  .../selftests/bpf/prog_tests/resolve_btfids.c | 41 ++++++-----
>  tools/testing/selftests/bpf/progs/btf_data.c  | 20 ++++++
>  4 files changed, 99 insertions(+), 38 deletions(-)
> 
> 
> base-commit: 3a59f11e0f989bdd637c87151992605a6559a7cb