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

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Message-ID: <D1B4B203872C7799+d5630d66-0557-49bc-baf5-2abbe50cc625@uniontech.com>
Date: Wed, 12 Nov 2025 11:09:24 +0800
From: Cryolitia PukNgae <cryolitia@...ontech.com>
To: luoqing <l1138897701@....com>
Cc: linux@...ck-us.net, linux-hwmon@...r.kernel.org,
 linux-kernel@...r.kernel.org, luoqing@...inos.cn
Subject: Re: [PATCH] hwmon: (gpd-fan) Fix the compilation error

On 12/11/2025 09.57, luoqing wrote:
> 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

Has it already been fixed in it[1] ?

1. https://lore.kernel.org/all/20251024202042.752160-1-krishnagopi487@gmail.com/#t

Best regards,
Cryolitia PukNgae