From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Warren Date: Tue, 08 Oct 2013 14:47:52 -0600 Subject: [U-Boot] [PATCH] SPDX: document dual license notation In-Reply-To: <1381262025-10154-1-git-send-email-wd@denx.de> References: <047701ce8a46$bcc78820$36569860$@bufferoverflow.ch> <1381262025-10154-1-git-send-email-wd@denx.de> Message-ID: <52546F78.40300@wwwdotorg.org> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de On 10/08/2013 01:53 PM, Wolfgang Denk wrote: > In [1] we discussed how we should deal with dual (or, more generally, > multiple) licensed files. Add this to Licenses/README so it's > properly documented. > > [1] http://thread.gmane.org/gmane.comp.boot-loaders.u-boot/166518 > > Signed-off-by: Wolfgang Denk > --- > Licenses/README | 12 ++++++++++++ > 1 file changed, 12 insertions(+) > > diff --git a/Licenses/README b/Licenses/README > index 9f61192..6dd7d5b 100644 > --- a/Licenses/README > +++ b/Licenses/README > @@ -37,6 +37,18 @@ replaced by a single line: > > SPDX-License-Identifier: GPL-2.0+ > > +Ideally, the license terms of all files in the source tree should be > +defined by such License Identifiers; in no case a file can contain > +more than one such License Identifier. I assume "one such License Identifier" here is intended to mean: a source line prefixed with the words "SPDX-License-Identifier:". However, to me "one such License Identifier" would actually refer to the "GPL-2.0+" part of the line, since that's what actually identifies the license. The other text simply introduces a list of license identifiers. That would then conflict with the rest of the patch that goes on to explicitly state that multiple licenses are allowed. In other words, I think that text can be confusing. I think you need to add "line", "list" or "set" to the end of the sentence to make it unambiguous. > +If a "SPDX-License-Identifier:" line references more than one Unique > +License Identifier, then this means that the respective file can be > +used under the terms of either of these licenses, i. e. with > + > + SPDX-License-Identifier: GPL-2.0+ BSD-3-Clause > + > +you can chose between GPL-2.0+ and BSD-3-Clause licensing.