netdev - Re: [PATCH v5 bpf-next 2/2] selftests/bpf: add tests for BPF_F_PRESERVE

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Message-ID: <20201001062718.uvtymy4l7jq6qkin@ast-mbp.dhcp.thefacebook.com>
Date:   Wed, 30 Sep 2020 23:27:18 -0700
From:   Alexei Starovoitov <alexei.starovoitov@...il.com>
To:     Song Liu <songliubraving@...com>
Cc:     netdev@...r.kernel.org, bpf@...r.kernel.org, kernel-team@...com,
        ast@...nel.org, daniel@...earbox.net, john.fastabend@...il.com,
        kpsingh@...omium.org
Subject: Re: [PATCH v5 bpf-next 2/2] selftests/bpf: add tests for
 BPF_F_PRESERVE_ELEMS

On Wed, Sep 30, 2020 at 03:49:27PM -0700, Song Liu wrote:
> +
> +SEC("raw_tp/task_rename")
> +int BPF_PROG(read_array_2)
> +{
> +	struct bpf_perf_event_value val;
> +	long ret;
> +
> +	ret = bpf_perf_event_read_value(&array_2, 0, &val, sizeof(val));
> +	return ret;
> +}

After removing printk there was a pointless 'ret' variable.
I've removed it while applying.