linux-kernel - [PATCH] drm/komeda: mark PM functions as __maybe

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Date:   Tue,  7 Jan 2020 22:53:19 +0100
From:   Arnd Bergmann <arnd@...db.de>
To:     "james qian wang (Arm Technology China)" <james.qian.wang@....com>,
        Liviu Dudau <liviu.dudau@....com>,
        Mihail Atanassov <mihail.atanassov@....com>,
        Brian Starkey <brian.starkey@....com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Nathan Chancellor <natechancellor@...il.com>,
        "Lowry Li (Arm Technology China)" <Lowry.Li@....com>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: [PATCH] drm/komeda: mark PM functions as __maybe_unused

Without this, we get a couple of warnings when CONFIG_PM
is disabled:

drivers/gpu/drm/arm/display/komeda/komeda_drv.c:156:12: error: 'komeda_rt_pm_resume' defined but not used [-Werror=unused-function]
 static int komeda_rt_pm_resume(struct device *dev)
            ^~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/arm/display/komeda/komeda_drv.c:149:12: error: 'komeda_rt_pm_suspend' defined but not used [-Werror=unused-function]
 static int komeda_rt_pm_suspend(struct device *dev)
            ^~~~~~~~~~~~~~~~~~~~

Fixes: efb465088518 ("drm/komeda: Add runtime_pm support")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/gpu/drm/arm/display/komeda/komeda_drv.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_drv.c b/drivers/gpu/drm/arm/display/komeda/komeda_drv.c
index ea5cd1e17304..e7933930a657 100644
--- a/drivers/gpu/drm/arm/display/komeda/komeda_drv.c
+++ b/drivers/gpu/drm/arm/display/komeda/komeda_drv.c
@@ -146,14 +146,14 @@ static const struct of_device_id komeda_of_match[] = {
 
 MODULE_DEVICE_TABLE(of, komeda_of_match);
 
-static int komeda_rt_pm_suspend(struct device *dev)
+static int __maybe_unused komeda_rt_pm_suspend(struct device *dev)
 {
 	struct komeda_drv *mdrv = dev_get_drvdata(dev);
 
 	return komeda_dev_suspend(mdrv->mdev);
 }
 
-static int komeda_rt_pm_resume(struct device *dev)
+static int __maybe_unused komeda_rt_pm_resume(struct device *dev)
 {
 	struct komeda_drv *mdrv = dev_get_drvdata(dev);
 
-- 
2.20.0