Hi,

The explanation should be in the patch, not the cover letter.
Actually, you don't need a cover letter for a single patch.
Copying it here:
"
dpdk is fairly expensive to build in GitHub.

It's helpful to abandon old builds as soon as there's a new
build waiting instead of wasting resources on the previous
round.
"

12/01/2022 07:50, Josh Soref:
> Signed-off-by: Josh Soref <jsoref@gmail.com>
> ---
> +    concurrency:
> +      group: build-${{ matrix.config.os }}-${{ matrix.config.compiler }}-${{ matrix.config.library }}-${{ matrix.config.cross }}-${{ matrix.config.mini }}-${{ github.event.pull_request.number || github.ref }}
> +      cancel-in-progress: true

The goal of the CI is to catch any issue in a submitted patch.
Is your change cancelling a test of a patch when another one is submitted?