[PATCH] devtools: add Co-developed-by to commit log check

[Stephen Hemminger]

On Thu, 12 Mar 2026 19:56:25 +0100
Thomas Monjalon <thomas at monjalon.net> wrote:

> 12/03/2026 19:54, Stephen Hemminger:
> > Add Co-developed-by to the recognized tag pattern and tag
> > sequence order in check-git-log.sh.  
> 
> Why using such tag? Signed-off-by is not enough?
> 
> 

The tags were inherited from the kernel development process.

Signed-off-by is the DCO (Developer Certificate of Origin) attestation. 
It says "I certify that I have the right to submit this code under the project's license.

Co-developed-by explicitly marks someone as a co-author of the patch. 
Without it, there's only one author recorded in the git metadata.

I just wanted check-git-log.sh to be quiet if it was used.

The Co-developed-by is new, and probably came about because some people
need/want to have their contributions recorded in the git statistics.
Silly corporate overlords count contributions and it matters to them...

PS: If DPDK was exactly following the kernel process, every time a patch was merged into a sub-tree
it would get a Signed-off-by from a maintainer. Because the maintainer is validating that
the submitter had the correct rights.