On 20/02/19 13:03, Greg KH wrote: > On Tue, Feb 19, 2019 at 01:51:20PM +0200, Boaz harrosh wrote: >> However the ZUS user mode Server is a BSD-3-Clause licensed >> project. >> Therefor you will see that: >> zus_api.h >> md_def.h >> md.h >> These are common files with ZUS project are separately Licensed as >> BSD-3-Clause. Any contributor to these files should note that his >> code for these files is submitted as BSD-3-Clause. >> This is for the obvious reasons as these define the API between Kernel >> an user-mode Server. It is the opinion of this project authors, as is >> of Linus that a pure API header is not governed by ANY license. But >> to make it clear. > > No, that is not true, the files do have a license. Please see the > proper SPDX text that we use for kernel api .h files for what that is, > and what you should also use for yours, if you go through with this. > OK Good I understand more now. I looked at UAPI/ headers and read the docs you mentioned. Please help me nail this properly. I will change these headers to be: /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note AND BSD-3-Clause */ (I will also change the message text to reflect this conversation) My motivation is that those Interface HEADERS can also be used in proprietary OSs as Macosx and Windows. To compile the ZUS Server application project which is licensed as SPDX BSD-3-Clause. So I changed the OR to an AND right? Is it now clear that anyone adding new API interface like new operations. Understand that this applies also to BSD-3-Clause projects? > thanks, > greg k-h Thanks very much for looking Boaz