linux-kernel - Re: [PATCH 2/2] Documentation: best practices for using Link trailers

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Date: Wed, 19 Jun 2024 05:08:32 -0400
From: "Michael S. Tsirkin" <mst@...hat.com>
To: Jani Nikula <jani.nikula@...el.com>
Cc: Konstantin Ryabitsev <konstantin@...uxfoundation.org>,
	Jonathan Corbet <corbet@....net>,
	Carlos Bilbao <carlos.bilbao.osdev@...il.com>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	workflows@...r.kernel.org, linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
	ksummit@...ts.linux.dev
Subject: Re: [PATCH 2/2] Documentation: best practices for using Link trailers

On Wed, Jun 19, 2024 at 11:50:48AM +0300, Jani Nikula wrote:
> On Tue, 18 Jun 2024, Konstantin Ryabitsev <konstantin@...uxfoundation.org> wrote:
> > Based on multiple conversations, most recently on the ksummit mailing
> > list [1], add some best practices for using the Link trailer, such as:
> >
> > - how to use markdown-like bracketed numbers in the commit message to
> > indicate the corresponding link
> > - when to use lore.kernel.org vs patch.msgid.link domains
> >
> > Cc: ksummit@...ts.linux.dev
> > Link: https://lore.kernel.org/20240617-arboreal-industrious-hedgehog-5b84ae@meerkat # [1]
> > Signed-off-by: Konstantin Ryabitsev <konstantin@...uxfoundation.org>
> > ---
> >  Documentation/process/maintainer-tip.rst | 24 ++++++++++++++++++------
> >  1 file changed, 18 insertions(+), 6 deletions(-)
> >
> > diff --git a/Documentation/process/maintainer-tip.rst b/Documentation/process/maintainer-tip.rst
> > index 64739968afa6..57ffa553c21e 100644
> > --- a/Documentation/process/maintainer-tip.rst
> > +++ b/Documentation/process/maintainer-tip.rst
> > @@ -375,14 +375,26 @@ following tag ordering scheme:
> >     For referring to an email on LKML or other kernel mailing lists,
> >     please use the lore.kernel.org redirector URL::
> >  
> > -     https://lore.kernel.org/r/email-message@id
> > +     Link: https://lore.kernel.org/email-message@id
> >  
> > -   The kernel.org redirector is considered a stable URL, unlike other email
> > -   archives.
> > +   This URL should be used when referring to relevant mailing list
> > +   resources, related patch sets, or other notable discussion threads.
> > +   A convenient way to associate Link trailers with the accompanying
> > +   message is to use markdown-like bracketed notation, for example::
> >  
> > -   Maintainers will add a Link tag referencing the email of the patch
> > -   submission when they apply a patch to the tip tree. This tag is useful
> > -   for later reference and is also used for commit notifications.
> > +     A similar approach was attempted before as part of a different
> > +     effort [1], but the initial implementation caused too many
> > +     regressions [2], so it was backed out and reimplemented.
> > +
> > +     Link: https://lore.kernel.org/some-msgid@here # [1]
> > +     Link: https://bugzilla.example.org/bug/12345  # [2]
> > +
> > +   When using the ``Link:`` trailer to indicate the provenance of the
> > +   patch, you should use the dedicated ``patch.msgid.link`` domain. This
> > +   makes it possible for automated tooling to establish which link leads
> > +   to the original patch submission. For example::
> 
> Mostly highlighting my own ignorance here, but s/provenance/origin/
> would've felt more obvious to me, as a non-native speaker.
> 
> BR,
> Jani.

Or even "origin (message id)" to be very explicit.






> 
> > +
> > +     Link: https://patch.msgid.link/patch-source-msgid@here
> >  
> >  Please do not use combined tags, e.g. ``Reported-and-tested-by``, as
> >  they just complicate automated extraction of tags.
> 
> -- 
> Jani Nikula, Intel