[PATCH] PCI: tegra: mark PM functions as __maybe_unused

Arnd Bergmann
2018-03-15T16:18:39Z

The new PM support causes a warning when CONFIG_PM is disabled:

drivers/pci/host/pci-tegra.c:2482:12: error: 'tegra_pcie_pm_resume' defined but not used [-Werror=unused-function]
static int tegra_pcie_pm_resume(struct device *dev)
drivers/pci/host/pci-tegra.c:2463:12: error: 'tegra_pcie_pm_suspend' defined but not used [-Werror=unused-function]
static int tegra_pcie_pm_suspend(struct device *dev)

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

Fixes: b90b44154023 ("PCI: tegra: Add power management support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
drivers/pci/host/pci-tegra.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/pci/host/pci-tegra.c b/drivers/pci/host/pci-tegra.c
index 39c4af9cf055..389e74be846c 100644
--- a/drivers/pci/host/pci-tegra.c
+++ b/drivers/pci/host/pci-tegra.c
@@ -2460,7 +2460,7 @@ static int tegra_pcie_remove(struct platform_device *pdev)
return 0;
}

-static int tegra_pcie_pm_suspend(struct device *dev)
+static int __maybe_unused tegra_pcie_pm_suspend(struct device *dev)
{
struct tegra_pcie *pcie = dev_get_drvdata(dev);
struct tegra_pcie_port *port;
@@ -2479,7 +2479,7 @@ static int tegra_pcie_pm_suspend(struct device *dev)
return 0;
}

-static int tegra_pcie_pm_resume(struct device *dev)
+static int __maybe_unused tegra_pcie_pm_resume(struct device *dev)
{
struct tegra_pcie *pcie = dev_get_drvdata(dev);
int err;
--
2.9.0