[PATCH 3/3] parisc/serial: Add SPDX license identifier to asm/serial.h

[Thorsten Blum]

Add the SPDX license identifier.

Signed-off-by: Thorsten Blum <thorsten.blum@xxxxxxxxx>
---
 arch/parisc/include/asm/serial.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/parisc/include/asm/serial.h b/arch/parisc/include/asm/serial.h
index 4f0df8e10a4f..122430db8cad 100644
--- a/arch/parisc/include/asm/serial.h
+++ b/arch/parisc/include/asm/serial.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_PARISC_SERIAL_H
 #define _ASM_PARISC_SERIAL_H