Re: [Ksummit-discuss] [PATCH] media: add a subsystem profile documentation

On Wed, 2019-09-25 at 11:40 -0700, Kees Cook wrote:
> On Wed, Sep 25, 2019 at 10:13:37AM -0700, Joe Perches wrote:
> > On Thu, 2019-09-19 at 09:56 +0300, Dan Carpenter wrote:
> > > When I sent a patch, I use get_maintainer.pl then I add whoever the
> > > wrote the commit from the Fixes tag.  Then I remove Colin King and Kees
> > > Cook from the CC list because they worked all over the tree and I know
> > > them.  I also normally remove LKML if there is another mailing list but
> > > at least one subsystem uses LKML for patchwork so this isn't safe.
> > > 
> > > So the safest instructions are "Use get_matainer.pl and add the person
> > > who wrote the commit in the Fixes tag".
> > 
> > Maybe add this:
> > 
> > Add the signers of any commit referenced in a "Fixes: <commit>" line
> > of a patch description.
> 
> Oh yes please! I've always done this manually, so that's a nice bit of
> automation. :)
> 
> Is "6" a safe lower bound here? I thought 12 was the way to go?
[]
> $ git log | egrep 'Fixes: [a-f0-9]{1,40}' | col2 | awk '{print length }' | sort | uniq -c | sort -n | tail
>     238 8
>     300 7
>     330 14
>     344 6
>     352 11
>     408 40
>     425 10
>     735 16
>    1866 13
>   31446 12
> 
> Hmpf, 6 is pretty high up there...

Yes, but your grep then col2 isn't right.
You are counting all the 'Fixes: commit <foo>' output
as 6 because that's the length of 'commit'.

I also think the length of the hex commit value doesn't
matter much as it's got to be a specific single commit
SHA1 anyway, otherwise the commit id lookup will fail.

> > > @@ -1031,6 +1040,7 @@ MAINTAINER field selection options:
> >      --roles => show roles (status:subsystem, git-signer, list, etc...)
> >      --rolestats => show roles and statistics (commits/total_commits, %)
> >      --file-emails => add email addresses found in -f file (default: 0 (off))
> > +    --fixes => for patches, add signatures of commits with 'Fixes: <commit>' (default: 1 (on))
> 
> Should "Tested-by" and "Co-developed-by" get added to @signature_tags ?

All "<foo>-by:" signatures are added.

> @commit_authors is unused?

Yes, authors are already required to sign-off so
it's just duplicating already existing signatures.


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