linux-kernel - Re: [PATCH -next] drm/rockchip: cdn-dp: Mark cdn_dp_core_suspend/resume __maybe

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Message-ID: <4fa1e3fe-c254-6924-ed3b-a6fd4ca88e41@huawei.com>
Date:   Sat, 31 Oct 2020 10:42:04 +0800
From:   Yuehaibing <yuehaibing@...wei.com>
To:     <hjc@...k-chips.com>, <heiko@...ech.de>, <airlied@...ux.ie>,
        <daniel@...ll.ch>
CC:     <dri-devel@...ts.freedesktop.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-rockchip@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH -next] drm/rockchip: cdn-dp: Mark
 cdn_dp_core_suspend/resume __maybe_unused

ping...

On 2020/8/11 10:12, YueHaibing wrote:
> If CONFIG_PM is not set, gcc warns:
> 
> drivers/gpu/drm/rockchip/cdn-dp-core.c:1124:12:
>  warning: ‘cdn_dp_resume’ defined but not used [-Wunused-function]
> 
> Mark them __maybe_unused to fix this.
> 
> Reported-by: Hulk Robot <hulkci@...wei.com>
> Signed-off-by: YueHaibing <yuehaibing@...wei.com>
> ---
>  drivers/gpu/drm/rockchip/cdn-dp-core.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/rockchip/cdn-dp-core.c b/drivers/gpu/drm/rockchip/cdn-dp-core.c
> index a4a45daf93f2..413b0e90f10f 100644
> --- a/drivers/gpu/drm/rockchip/cdn-dp-core.c
> +++ b/drivers/gpu/drm/rockchip/cdn-dp-core.c
> @@ -1107,7 +1107,7 @@ static const struct component_ops cdn_dp_component_ops = {
>  	.unbind = cdn_dp_unbind,
>  };
>  
> -static int cdn_dp_suspend(struct device *dev)
> +static __maybe_unused int cdn_dp_suspend(struct device *dev)
>  {
>  	struct cdn_dp_device *dp = dev_get_drvdata(dev);
>  	int ret = 0;
> @@ -1121,7 +1121,7 @@ static int cdn_dp_suspend(struct device *dev)
>  	return ret;
>  }
>  
> -static int cdn_dp_resume(struct device *dev)
> +static __maybe_unused int cdn_dp_resume(struct device *dev)
>  {
>  	struct cdn_dp_device *dp = dev_get_drvdata(dev);
>  
>