commit 58359193193c4261d340b2f7f028e5096d4e4d15
author Arnd Bergmann <arnd@arndb.de> Thu Jan 18 14:04:42 2018 +0100
committer Marc Kleine-Budde <mkl@pengutronix.de> Fri Jan 19 10:41:15 2018 +0100
tree 3e9b17540fef8b02124cc5fee66b752aab7c02e1
parent ef58ca38dbda0642e293bcaa2e05edc79677c617

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: cdf8259d6573 ("can: m_can: Add PM Support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

drivers/net/can/m_can/m_can.c

diff --git a/drivers/net/can/m_can/m_can.c b/drivers/net/can/m_can/m_can.c
index 49ed873..2594f77 100644
--- a/drivers/net/can/m_can/m_can.c
+++ b/drivers/net/can/m_can/m_can.c
@@ -1749,7 +1749,7 @@
 	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 @@
 	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);