It's good to have SPDX identifiers in all files to make it easier to
audit the kernel tree for correct licenses.

Fix up the staging fwserial driver to have a proper SPDX identifier,
based on the license text in the file itself.  The SPDX identifier is a
legally binding shorthand, which can be used instead of the full boiler
plate text.

This work is based on a script and data from Thomas Gleixner, Philippe
Ombredanne, and Kate Stewart.

Cc: Thomas Gleixner <t...@linutronix.de>
Cc: Kate Stewart <kstew...@linuxfoundation.org>
Cc: Philippe Ombredanne <pombreda...@nexb.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
 drivers/staging/fwserial/dma_fifo.c | 1 +
 drivers/staging/fwserial/dma_fifo.h | 1 +
 drivers/staging/fwserial/fwserial.c | 1 +
 3 files changed, 3 insertions(+)

diff --git a/drivers/staging/fwserial/dma_fifo.c 
b/drivers/staging/fwserial/dma_fifo.c
index 8b23a553fd4a..45b947afcf9f 100644
--- a/drivers/staging/fwserial/dma_fifo.c
+++ b/drivers/staging/fwserial/dma_fifo.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * DMA-able FIFO implementation
  *
diff --git a/drivers/staging/fwserial/dma_fifo.h 
b/drivers/staging/fwserial/dma_fifo.h
index 37a91c6a1709..826c82f7f42c 100644
--- a/drivers/staging/fwserial/dma_fifo.h
+++ b/drivers/staging/fwserial/dma_fifo.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * DMA-able FIFO interface
  *
diff --git a/drivers/staging/fwserial/fwserial.c 
b/drivers/staging/fwserial/fwserial.c
index bba7e9c888b3..57f0bc11099a 100644
--- a/drivers/staging/fwserial/fwserial.c
+++ b/drivers/staging/fwserial/fwserial.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * FireWire Serial driver
  *
-- 
2.15.1

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