Hi. The comment block of scripts/basic/fixdep.c says as follows: * Author Kai Germaschewski * Copyright 2002 by Kai Germaschewski <kai.germaschewski@xxxxxx> * * This software may be used and distributed according to the terms * of the GNU General Public License, incorporated herein by reference. It does not explicitly mention the version of GPL. In this case, I think the corresponding SPDX tag is GPL-1.0+ instead of GPL-2.0 Is this correct? There could be another problem regarding of this. Commit 9f7ef9854e80 copied scripts/basic/fixdep.c to tools/build/fixdep.c, but it ripped off its license term. Later, it was tagged as GPL-2.0 by b24413180 See 'git show b24413180 -- tools/build/fixdep.c' Maybe tools/build/fixdep.c should be corrected to GPL-1.0+ ? -- Best Regards Masahiro Yamada