diff options
authorWolfgang Denk <>2013-10-08 21:53:45 +0200
committerTom Rini <>2013-10-14 16:06:26 -0400
commit17fd36c123038d2e6c9db679feef4d9e886cd4a4 (patch)
parent4fa7613c50069b6821ace02b11a24b46dcbbec5e (diff)
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] 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 <>
1 files changed, 12 insertions, 0 deletions
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].
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