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: cdf8259d6573 ("can: m_can: Add PM Support") Signed-off-by: Arnd Bergmann <a...@arndb.de> --- drivers/net/can/m_can/m_can.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/can/m_can/m_can.c b/drivers/net/can/m_can/m_can.c index 49ed8737871f..2594f7779c6f 100644 --- a/drivers/net/can/m_can/m_can.c +++ b/drivers/net/can/m_can/m_can.c @@ -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); -- 2.9.0