Re: [PATCH v7 bpf-next 1/3] bpf: sharing bpf runtime stats with BPF_ENABLE_STATS

[Alexei Starovoitov <alexei.starovoitov@xxxxxxxxx>]

On Tue, Apr 28, 2020 at 08:58:39PM -0700, Song Liu wrote:
> +
> +static int bpf_enable_stats(union bpf_attr *attr)
> +{

CHECK_ATTR() is missing which makes it non-extensible.

> +	switch (attr->enable_stats.type) {
> +	case BPF_STATS_RUNTIME_CNT:
> +		return bpf_enable_runtime_stats();
> +	default:
> +		break;
> +	}
> +	return -EINVAL;
> +}