Re: [PATCH bpf-next] selftests/bpf: mark dynptr kfuncs __weak to make them optional on old kernels

[patchwork-bot+netdevbpf@kernel.org]

Hello:

This patch was applied to bpf/bpf-next.git (master)
by Alexei Starovoitov <ast@kernel.org>:

On Mon,  5 Feb 2024 16:40:08 -0800 you wrote:
> Mark dynptr kfuncs as __weak to allow
> verifier_global_subprogs/arg_ctx_{perf,kprobe,raw_tp} subtests to be
> loadable on old kernels. Because bpf_dynptr_from_xdp() kfunc is used
> from arg_tag_dynptr BPF program in progs/verifier_global_subprogs.c
> *and* is not marked as __weak, loading any subtest from
> verifier_global_subprogs fails on old kernels that don't have
> bpf_dynptr_from_xdp() kfunc defined. Even if arg_tag_dynptr program
> itself is not loaded, libbpf bails out on non-weak reference to
> bpf_dynptr_from_xdp (that can't be resolved), which shared across all
> programs in progs/verifier_global_subprogs.c.
> 
> [...]

Here is the summary with links:
  - [bpf-next] selftests/bpf: mark dynptr kfuncs __weak to make them optional on old kernels
    https://git.kernel.org/bpf/bpf-next/c/c7dcb6c9aa85

You are awesome, thank you!
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