linux-kernel - [PATCH v3 3/6] pinctrl: core: guard with __PINCTRL_CORE

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Date: Sun, 28 Apr 2024 13:07:49 +0800
From: "Peng Fan (OSS)" <peng.fan@....nxp.com>
To: Sudeep Holla <sudeep.holla@....com>, 
 Cristian Marussi <cristian.marussi@....com>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>, 
 Sascha Hauer <s.hauer@...gutronix.de>, 
 Pengutronix Kernel Team <kernel@...gutronix.de>, 
 Fabio Estevam <festevam@...il.com>, 
 Linus Walleij <linus.walleij@...aro.org>, 
 Dong Aisheng <aisheng.dong@....com>, Jacky Bai <ping.bai@....com>
Cc: linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, imx@...ts.linux.dev, 
 linux-gpio@...r.kernel.org, Peng Fan <peng.fan@....com>
Subject: [PATCH v3 3/6] pinctrl: core: guard with __PINCTRL_CORE_H

From: Peng Fan <peng.fan@....com>

Guard the file with __PINCTRL_CORE_H to avoid build failure in case
core.h is included multiple times.

Signed-off-by: Peng Fan <peng.fan@....com>
---
 drivers/pinctrl/core.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/pinctrl/core.h b/drivers/pinctrl/core.h
index 837fd5bd903d..1da7b0d329bc 100644
--- a/drivers/pinctrl/core.h
+++ b/drivers/pinctrl/core.h
@@ -8,6 +8,9 @@
  * Author: Linus Walleij <linus.walleij@...aro.org>
  */
 
+#ifndef __PINCTRL_CORE_H
+#define __PINCTRL_CORE_H
+
 #include <linux/kref.h>
 #include <linux/list.h>
 #include <linux/mutex.h>
@@ -262,3 +265,4 @@ extern struct list_head pinctrl_maps;
 		for (unsigned int __i = 0;						\
 		     __i < _maps_node_->num_maps && (_map_ = &_maps_node_->maps[__i]);	\
 		     __i++)
+#endif

-- 
2.37.1