linux-kernel - Re: [PATCH] drm/i2c/tda998x: mark symbol static where possible

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Date:   Mon, 24 Oct 2016 12:14:14 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     Baoyou Xie <baoyou.xie@...aro.org>
Cc:     rmk+kernel@...linux.org.uk, airlied@...ux.ie,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        xie.baoyou@....com.cn, han.fei@....com.cn, tang.qiang007@....com.cn
Subject: Re: [PATCH] drm/i2c/tda998x: mark symbol static where possible

On Saturday, October 22, 2016 5:14:42 PM CEST Baoyou Xie wrote:
> We get 1 warning when building kernel with W=1:
> drivers/gpu/drm/i2c/tda998x_drv.c:1292:5: warning: no previous prototype for 'tda998x_audio_digital_mute' [-Wmissing-prototypes]
> 
> In fact, this function is only used in the file in which it is
> declared and don't need a declaration, but can be made static.
> So this patch marks this function with 'static'.
> 
> Signed-off-by: Baoyou Xie <baoyou.xie@...aro.org>
> 

Reviewed-by: Arnd Bergmann <arnd@...db.de>