Hi. In this development cycle of Linux kernel, lots of files were converted to use SPDX instead of the license boilerplate. However. Some files were imported from a different project, and are periodically synchronized with the upstream. Have we discussed what to do about this case? For example, scripts/dtc/ is the case. The files in scripts/dtc/ are synced with the upstream device tree compiler. Rob Herring periodically runs scripts/dtc/update-dtc-source.sh to import outcome from the upstream. The upstream DTC has not adopted SPDX yet. Some files in Linux (e.g. scripts/dtc/dtc.c) have been converted to SPDX. So, they are out of sync now. The license boilerplate will come back when Rob runs scripts/dtc/update-dtc-source.sh next time. What shall we do? [1] Convert upstream DTC to SPDX This will be a happy solution if it is acceptable in DTC. Since we cannot push the decision of the kernel to a different project, this is totally up to David Gibson. [2] Change scripts/dtc/update-dtc-source.sh to take care of the license block somehow [3] Go back to license boilerplate, and keep the files synced with the upstream (and scripts/dtc/ should be excluded from the SPDX conversion tool.) Or, what else? -- Best Regards Masahiro Yamada