On Tue, 29 Mar 2022 at 09:03, Markus Armbruster <armbru@redhat.com> wrote:
A cover letter (git format-patch --cover-letter) lets you write an
introduction to the whole series. Simple series may not need an
introduction, but complex ones do. I always use one except when the
"series" is a single patch.
Note that a multi-patch series always needs a cover letter,
even if its contents are quite brief. Some of the automatic
tooling gets confused by multi-patch series with no cover letter.
Conversely, single patches shouldn't have a cover letter, although
getting that one wrong doesn't really have much ill effect.
thanks
-- PMM