On Mon, 24 Feb 2020 13:01:30 -0800
Stephen Hemminger [off-list ref] wrote:

Simple script to look for drivers and scripts that
are missing requires SPDX header.

Update the contribution guidelines to indicate that SPDX license
identfier is required for this project.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
v4 - add MAINTAINERS entry
     update coding style document
     change name of script

 MAINTAINERS                              |  1 +
 devtools/check-spdx-tag.sh               | 77 ++++++++++++++++++++++++
 doc/guides/contributing/coding_style.rst |  9 ++-
 3 files changed, 85 insertions(+), 2 deletions(-)
 create mode 100755 devtools/check-spdx-tag.sh

Going through the patch backlog.

Why is this not merged yet?
Why is not in DPDK 20.05?