linux-kernel - Re: [PATCH v1 0/3] Add support for Broadcom OTP controller

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Date:   Mon, 24 Oct 2016 13:14:53 -0700
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     Florian Fainelli <f.fainelli@...il.com>
Cc:     Jonathan Richardson <jonathan.richardson@...adcom.com>,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        Maxime Ripard <maxime.ripard@...e-electrons.com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        lkml <linux-kernel@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        Mark Rutland <mark.rutland@....com>,
        Rob Herring <robh+dt@...nel.org>,
        Scott Branden <sbranden@...adcom.com>,
        Ray Jui <rjui@...adcom.com>,
        bcm-kernel-feedback-list@...adcom.com
Subject: Re: [PATCH v1 0/3] Add support for Broadcom OTP controller

On Mon, Oct 24, 2016 at 12:54 PM, Florian Fainelli <f.fainelli@...il.com> wrote:
>
> The older setup was using smtphost.broadcom.com which we have now
> documented as being invalid, here Jonathan used gmail directly (since
> that's our mail provider now):
>
> Received: from lbrmn-lnxub108.corp.ad.broadcom.com ([216.31.219.19])
>         by smtp.gmail.com with ESMTPSA id
> s89sm8325746qkl.44.2016.10.24.12.12.00
>         (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128);
>         Mon, 24 Oct 2016 12:12:03 -0700 (PDT)

Hmm. I get that too, so if that's the right thing for a broadcom.com
address, it's not the smtp server issue.

We had a few cases of the kernel mailing list itself messing up emails
sufficiently to fail dkim, but that shouldn't be an issue for the
relaxed/relaxed model that broadcom uses (the vger mailing list
software screws up whitespace, which "relaxed" ignores).

> Is there something else we need to check? Here is what I read for the
> cover-letter:
>
> Authentication-Results: mx.google.com;
>        dkim=pass header.i=@...adcom.com;
>        spf=pass (google.com: domain of ...

Hmm. I get:

  Authentication-Results: mx.google.com;
         dkim=fail header.i=@...adcom.com;

with the actual dkim signature looking like this:

  DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=broadcom.com; s=google;
        h=from:to:cc:subject:date:message-id;
        bh=9zStGnsZQDQqP6cm1CHPk7EYVtLvDsm2wN5qy5Mgx7M=;
        b=Z/1QD+FwJogJY9D8Qd197Q+VJt7Tr9+WoHFeKYRL00yhvxrMg0P8jKj1FbucJTluvM
         agC2eq9qCpZcNAfridjExDRDCuUPAIJIXTr9Npkpqlk6gEMq2FysrGer2D9Z4HQ/atTX
         67VirFsQK0gK7impYMn9kW5Q9BIIw5bOg7OdI=

and those fields that it protects look like this:

  From: Jonathan Richardson <jonathan.richardson@...adcom.com>
  To: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>, Maxime
Ripard <maxime.ripard@...e-electrons.com>
  Cc: linux-arm-kernel@...ts.infradead.org,
linux-kernel@...r.kernel.org, devicetree@...r.kernel.org, Mark Rutland
<mark.rutland@....com>, Rob Herring <robh+dt@...nel.org>, Scott
Branden <sbranden@...adcom.com>, Ray Jui <rjui@...adcom.com>,
bcm-kernel-feedback-list@...adcom.com, Jonathan Richardson
<jonathan.richardson@...adcom.com>
  Subject: [PATCH v1 0/3] Add support for Broadcom OTP controller
  Date: Mon, 24 Oct 2016 12:12:01 -0700
  Message-Id: <1477336324-10543-1-git-send-email-jonathan.richardson@...adcom.com>

and I don't see anything obviously wrong anywhere - except for that
"dkim=fail" thing, and the email being in my spam folder.

               Linus