linux-kernel - [PATCH] serial: sh-sci: Add missing header guard

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Message-ID: <20250923092846.74517-1-prabhakar.mahadev-lad.rj@bp.renesas.com>
Date: Tue, 23 Sep 2025 10:28:46 +0100
From: Prabhakar <prabhakar.csengg@...il.com>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Jiri Slaby <jirislaby@...nel.org>,
	Geert Uytterhoeven <geert+renesas@...der.be>,
	Wolfram Sang <wsa+renesas@...g-engineering.com>
Cc: linux-kernel@...r.kernel.org,
	linux-serial@...r.kernel.org,
	linux-renesas-soc@...r.kernel.org,
	Prabhakar <prabhakar.csengg@...il.com>,
	Biju Das <biju.das.jz@...renesas.com>,
	Fabrizio Castro <fabrizio.castro.jz@...esas.com>,
	Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Subject: [PATCH] serial: sh-sci: Add missing header guard

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>

Add header guard to sh-sci.h to prevent multiple inclusions of the
header file.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
---
 drivers/tty/serial/sh-sci.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/tty/serial/sh-sci.h b/drivers/tty/serial/sh-sci.h
index 951681aba586..22f877e2a17e 100644
--- a/drivers/tty/serial/sh-sci.h
+++ b/drivers/tty/serial/sh-sci.h
@@ -1,4 +1,7 @@
 /* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __SH_SCI_H__
+#define __SH_SCI_H__
+
 #include <linux/bitops.h>
 #include <linux/serial_core.h>
 #include <linux/io.h>
@@ -176,3 +179,5 @@ enum {
 	(((port)->type == PORT_SCI) ? SCI_TDxE_CLEAR : SCIF_TDxE_CLEAR)
 #define SCxSR_BREAK_CLEAR(port) \
 	(((port)->type == PORT_SCI) ? SCI_BREAK_CLEAR : SCIF_BREAK_CLEAR)
+
+#endif /* __SH_SCI_H__ */
-- 
2.51.0