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can: m_can: mark runtime-PM handlers as __maybe_unused 

Building without CONFIG_PM results in a harmless warning:

drivers/net/can/m_can/m_can.c:1763:12: error: 'm_can_runtime_resume' defined but not used [-Werror=unused-function]
drivers/net/can/m_can/m_can.c:1752:12: error: 'm_can_runtime_suspend' defined but not used [-Werror=unused-function]

Marking the functions as __maybe_unused lets the compiler
silently drop them instead.

Fixes: cdf8259d65 ("can: m_can: Add PM Support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
This commit is contained in:
Arnd Bergmann 2018-01-18 14:04:42 +01:00 committed by Marc Kleine-Budde
parent ef58ca38db
commit 5835919319
1 changed files with 2 additions and 2 deletions
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4
drivers/net/can/m_can/m_can.c
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@ -1749,7 +1749,7 @@ static int m_can_plat_remove(struct platform_device *pdev)
return 0;
}
static int m_can_runtime_suspend(struct device *dev)
static int __maybe_unused m_can_runtime_suspend(struct device *dev)
{
struct net_device *ndev = dev_get_drvdata(dev);
struct m_can_priv *priv = netdev_priv(ndev);
@ -1760,7 +1760,7 @@ static int m_can_runtime_suspend(struct device *dev)
return 0;
}
static int m_can_runtime_resume(struct device *dev)
static int __maybe_unused m_can_runtime_resume(struct device *dev)
{
struct net_device *ndev = dev_get_drvdata(dev);
struct m_can_priv *priv = netdev_priv(ndev);