[PATCH v2 0/2] docs & checkpatch: allow Closes tags with links

[Matthieu Baerts]

Since v6.3, checkpatch.pl now complains about the use of "Closes:" tags
followed by a link [1]. It also complains if a "Reported-by:" tag is
followed by a "Closes:" one [2].

As detailed in the first patch, this "Closes:" tag is used for a bit of
time, mainly by DRM and MPTCP subsystems. It is used by some bug
trackers to automate the closure of issues when a patch is accepted.
It is even planned to use this tag with bugzilla.kernel.org [3].

The first patch updates the documentation to explain what is this
"Closes:" tag and how/when to use it. The second patch modifies
checkpatch.pl to stop complaining about it.

The DRM maintainers and their mailing list have been added in Cc as they
are probably interested by these two patches as well.

[1] https://lore.kernel.org/all/3b036087d80b8c0e07a46a1dbaaf4ad0d018f8d5.1674217480.git.linux@xxxxxxxxxxxxx/
[2] https://lore.kernel.org/all/bb5dfd55ea2026303ab2296f4a6df3da7dd64006.1674217480.git.linux@xxxxxxxxxxxxx/
[3] https://lore.kernel.org/linux-doc/20230315181205.f3av7h6owqzzw64p@meerkat.local/

Signed-off-by: Matthieu Baerts <matthieu.baerts@xxxxxxxxxxxx>
---
Note: After having re-read the comments from the v1, it is still unclear
to me if this "Closes:" can be accepted or not. But because it seems
that the future Bugzilla bot for kernel.org is going to use it, I'm
sending here a v2. I'm sorry if I misunderstood the comments from v1.
Please ignore this v2 if I did.

Changes in v2:
- Patch 1/2:
  - Add Konstantin's Acked-by: even if the patch has changed a bit, the
    concept is still the same, I hope that's OK.
  - Mention "public" in "5.Posting.rst" file as well. (Jonathan Corbet)
  - Re-phrase the new text from "5.Posting.rst". (Bagas Sanjaya &
    Thorsten Leemhuis)
  - Clearly mention that private bug trackers and invalid URLs are
    forbidden (Linus Torvalds).
- Rebased on top of Linus' repo.
- Link to v1: https://lore.kernel.org/r/20230314-doc-checkpatch-closes-tag-v1-0-1b83072e9a9a@xxxxxxxxxxxx

---
Matthieu Baerts (2):
      docs: process: allow Closes tags with links
      checkpatch: allow Closes tags with links

 Documentation/process/5.Posting.rst          |  9 +++++++++
 Documentation/process/submitting-patches.rst |  9 +++++++++
 scripts/checkpatch.pl                        | 16 ++++++++--------
 3 files changed, 26 insertions(+), 8 deletions(-)
---
base-commit: cb7f5b41f8341148050fe63e27cf52aa4f1519ad
change-id: 20230314-doc-checkpatch-closes-tag-1731b57556b1

Best regards,
-- 
Matthieu Baerts <matthieu.baerts@xxxxxxxxxxxx>