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

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Date:   Tue, 11 Aug 2020 10:12:25 +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>, YueHaibing <yuehaibing@...wei.com>
Subject: [PATCH -next] drm/rockchip: cdn-dp: Mark cdn_dp_core_suspend/resume __maybe_unused

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);
 
-- 
2.17.1