linux-kernel - [PATCH] hwmon: (gpd-fan) Fix the compilation error

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Message-Id: <20251112015737.948693-1-l1138897701@163.com>
Date: Wed, 12 Nov 2025 09:57:37 +0800
From: luoqing <l1138897701@....com>
To: cryolitia@...ontech.com
Cc: linux@...ck-us.net,
	linux-hwmon@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	luoqing@...inos.cn
Subject: [PATCH] hwmon: (gpd-fan) Fix the compilation error

From: luoqing <luoqing@...inos.cn>

drivers/hwmon/gpd-fan.c: in the function 'gpd_ecram_read' :
drivers/hwmon/gpd-fan.c:231:9: Error: implicit declaration function 'outb' [-Werror= implrecental-function-declaration]
231 |         outb(0x2E, addr_port);
^~~~
drivers/hwmon/gpd-fan.c:244:16: Error: implicit declaration function 'inb' [-Werror= implrecental-function-declaration]
244 |         *val = inb(data_port);
^~~
cc1: All warnings were regarded as errors

Signed-off-by: luoqing <luoqing@...inos.cn>
---
 drivers/hwmon/gpd-fan.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/hwmon/gpd-fan.c b/drivers/hwmon/gpd-fan.c
index 321794807e8d..57d4ee683f0d 100644
--- a/drivers/hwmon/gpd-fan.c
+++ b/drivers/hwmon/gpd-fan.c
@@ -19,6 +19,7 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
+#include <linux/io.h>
 
 #define DRIVER_NAME "gpdfan"
 #define GPD_PWM_CTR_OFFSET 0x1841
-- 
2.25.1