uio: add SPDX license tags

For those without any license text present or short reference
to GPL, add SPDX tag.

Signed-off-by: Stephen Hemminger <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
(cherry picked from commit bce5c2e)

Orabug: 28671425

Signed-off-by: Liam Merwick <[email protected]>
Reviewed-by: Darren Kenny <[email protected]>
Reviewed-by: Alejandro Jimenez <[email protected]>
Tested-by: Vijay Balakrishna <[email protected]>

Author: shemminger

drivers/uio/uio_cif.c

@@ -1,11 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * UIO Hilscher CIF card driver
  *
  * (C) 2007 Hans J. Koch <[email protected]>
  * Original code (C) 2005 Benedikt Spranger <[email protected]>
- *
- * Licensed under GPL version 2 only.
- *
  */
 
 #include <linux/device.h>

drivers/uio/uio_fsl_elbc_gpcm.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* uio_fsl_elbc_gpcm: UIO driver for eLBC/GPCM peripherals
 
    Copyright (C) 2014 Linutronix GmbH

drivers/uio/uio_hv_generic.c

@@ -1,12 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * uio_hv_generic - generic UIO driver for VMBus
  *
  * Copyright (c) 2013-2016 Brocade Communications Systems, Inc.
  * Copyright (c) 2016, Microsoft Corporation.
  *
- *
- * This work is licensed under the terms of the GNU GPL, version 2.
- *
  * Since the driver does not declare any device ids, you must allocate
  * id and bind the device to the driver yourself.  For example:
  *

drivers/uio/uio_netx.c

@@ -1,12 +1,11 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * UIO driver for Hilscher NetX based fieldbus cards (cifX, comX).
  * See http://www.hilscher.com for details.
  *
  * (C) 2007 Hans J. Koch <[email protected]>
  * (C) 2008 Manuel Traut <[email protected]>
  *
- * Licensed under GPL version 2 only.
- *
  */
 
 #include <linux/device.h>

drivers/uio/uio_pci_generic.c

@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /* uio_pci_generic - generic UIO driver for PCI 2.3 devices
  *
  * Copyright (C) 2009 Red Hat, Inc.
  * Author: Michael S. Tsirkin <[email protected]>
  *
- * This work is licensed under the terms of the GNU GPL, version 2.
- *
  * Since the driver does not declare any device ids, you must allocate
  * id and bind the device to the driver yourself.  For example:
  *

drivers/uio/uio_sercos3.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* sercos3: UIO driver for the Automata Sercos III PCI card
 
    Copyright (C) 2008 Linutronix GmbH