Re: [PATCH bpf-next v4 6/7] bpf: Support call-site kfunc specialization for far calls

["Alexei Starovoitov" <alexei.starovoitov@gmail.com>]

On Fri, Sep 25, 2026 at 11:35 PM Emil Tsalapatis <emil@etsalapatis.com> wrote:
> -	ret = sort_kfunc_descs_by_imm_off(env);
> -	if (ret)
> -		return ret;
> +	/*
> +	 * Do not change kfunc desc position into the table for far JIT.
> +	 * because we use the indices in the instructions.
> +	 */
> +	if (bpf_jit_supports_far_kfunc_call())
> +		return 0;
>
> -	return 0;
> +	return sort_kfunc_descs_by_imm_off(env);

can we store the index in insn->off for near calls too ?
Near call JITs take the address from insn->imm and need only
func_model from the desc.
Then all JITs do the same lookup in bpf_jit_find_kfunc_model()
and no need for sort_kfunc_descs_by_imm_off(), desc->imm and bsearch.

as you mentioned in the other thread pls target bpf-next.
We're too far into -rc to do such large changes in bpf tree.

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