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Subject: Re: [Qemu-devel] QEMU fw_cfg DMA interface
To: Eric Blake <eblake@redhat.com>,
        =?UTF-8?Q?Marc_Mar=c3=ad?= <markmb@redhat.com>,
        linux-kernel@vger.kernel.org, qemu-devel@nongnu.org,
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References: <1443701677-13629-1-git-send-email-markmb@redhat.com>
 <560D5945.5050700@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>, Rob Herring <rob.herring@linaro.org>,
        Drew <drjones@redhat.com>, Arnd Bergmann <arnd@arndb.de>,
        devicetree@vger.kernel.org, Stefan Hajnoczi <stefanha@gmail.com>,
        Alexander Graf <agraf@suse.de>, "Kevin O'Connor" <kevin@koconnor.net>,
        Gerd Hoffmann <kraxel@redhat.com>
From: Laszlo Ersek <lersek@redhat.com>
Message-ID: <560D5C7E.8080900@redhat.com>
Date: Thu, 1 Oct 2015 18:17:02 +0200
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On 10/01/15 18:03, Eric Blake wrote:
> [meta-comment]
> 
> On 10/01/2015 06:14 AM, Marc Marí wrote:
>> Implementation of the FW CFG DMA interface.
> 
> The subject line is missing "v4" and "0/7". Also, the cover letter is
> missing a diffstat.  That makes it harder to see from the cover letter
> what the rest of the series is about.  'git format-patch/send-email
> --cover-letter' does what you want; you can even 'git config
> format.coverletter=auto' to always include a decent cover letter on any
> multi-patch series.
> 

This posting follows a little bit different pattern, one that I myself
follow when posting patches for two (or more) components that must work
in sync.

Usually, a top-level blurb is manually cross-posted to all relevant
mailing lists. Then, each separate patch series is posted only to the
relevant mailing list, with its own cover letter (as usual with git),
*in response* to the manually posted blurb.

This has the following benefits:

- in mailing list archives that organize messages into threads *across*
  mailing lists (like Gmane does, for example), the top-level manual
  blurb is a good "root" for referencing the entire posting.

- The same is true for personal mailboxes, if a recipient is explicitly
  CC'd on all of the messages.

Because the top level blurb is parent to several patch series, and those
child series can all have different version numbers (due to different
numbers of respinds), it is not always straightforward to assign a
version number to the top blurb.

Thanks
Laszlo