linux-kernel - Re: [PATCH] Input: psmouse - Fix build error of multiple definition

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Date:   Tue, 16 Jul 2019 20:19:04 +0200
From:   Dmitry Torokhov <dmitry.torokhov@...il.com>
To:     YueHaibing <yuehaibing@...wei.com>
Cc:     allison@...utok.net, tglx@...utronix.de, info@...ux.net,
        dilinger@...ian.org, linux-kernel@...r.kernel.org,
        linux-input@...r.kernel.org
Subject: Re: [PATCH] Input: psmouse - Fix build error of multiple definition

On Tue, Jul 16, 2019 at 02:54:11PM +0800, YueHaibing wrote:
> trackpoint_detect() should be static inline while
> CONFIG_MOUSE_PS2_TRACKPOINT is not set. otherwire,we
> got building fails:
> 
> drivers/input/mouse/alps.o: In function `trackpoint_detect':
> alps.c:(.text+0x8e00): multiple definition of `trackpoint_detect'
> drivers/input/mouse/psmouse-base.o:psmouse-base.c:(.text+0x1b50): first defined here
> 
> Reported-by: Hulk Robot <hulkci@...wei.com>
> Fixes: 55e3d9224b60 ("Input: psmouse - allow disabing certain protocol extensions")
> Signed-off-by: YueHaibing <yuehaibing@...wei.com>

Applied, thank you.

> ---
>  drivers/input/mouse/trackpoint.h | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/input/mouse/trackpoint.h b/drivers/input/mouse/trackpoint.h
> index 0afffe8..77110f3 100644
> --- a/drivers/input/mouse/trackpoint.h
> +++ b/drivers/input/mouse/trackpoint.h
> @@ -158,7 +158,8 @@ struct trackpoint_data {
>  #ifdef CONFIG_MOUSE_PS2_TRACKPOINT
>  int trackpoint_detect(struct psmouse *psmouse, bool set_properties);
>  #else
> -inline int trackpoint_detect(struct psmouse *psmouse, bool set_properties)
> +static inline int trackpoint_detect(struct psmouse *psmouse,
> +				    bool set_properties)
>  {
>  	return -ENOSYS;
>  }
> -- 
> 2.7.4
> 
> 

-- 
Dmitry