netdev - Re: [PATCH bpf-next 1/2] bpf: allow __sk_buff tstamp in BPF_PROG_TEST

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Date:   Tue, 15 Oct 2019 13:43:13 -0700
From:   Stanislav Fomichev <sdf@...ichev.me>
To:     Martin Lau <kafai@...com>
Cc:     Stanislav Fomichev <sdf@...gle.com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "bpf@...r.kernel.org" <bpf@...r.kernel.org>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "ast@...nel.org" <ast@...nel.org>,
        "daniel@...earbox.net" <daniel@...earbox.net>
Subject: Re: [PATCH bpf-next 1/2] bpf: allow __sk_buff tstamp in
 BPF_PROG_TEST_RUN

On 10/15, Martin Lau wrote:
> On Tue, Oct 15, 2019 at 11:31:24AM -0700, Stanislav Fomichev wrote:
> > It's useful for implementing EDT related tests (set tstamp, run the
> > test, see how the tstamp is changed or observe some other parameter).
> > 
> > Note that bpf_ktime_get_ns() helper is using monotonic clock, so for
> > the BPF programs that compare tstamp against it, tstamp should be
> > derived from clock_gettime(CLOCK_MONOTONIC, ...).
> Please provide a cover letter next time.  It makes ack-all possible.
SG, I'll try to add cover letter in the future if that helps.

If I remember correctly, acked-by to the cover letter was not
showing up in the patchwork and people usually do it for each patch
anyway. That's why I didn't bother to do it for this small change.

> Acked-by: Martin KaFai Lau <kafai@...com>