From 17fd36c123038d2e6c9db679feef4d9e886cd4a4 Mon Sep 17 00:00:00 2001 From: Wolfgang Denk Date: Tue, 8 Oct 2013 21:53:45 +0200 Subject: [PATCH] SPDX: document dual license notation 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 [trini: Add the word 'list' to the end of the line, per Stephen Warren's feedback] Signed-off-by: Tom Rini --- Licenses/README | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/Licenses/README b/Licenses/README index 9f61192557..c6ff2774fc 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 list. + +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. + We use the SPDX Unique License Identifiers here; these are available at [2]. -- 2.25.1