From: Marek Vasut <marek.vasut+renesas@xxxxxxxxx>
If CONFIG_PM_SLEEP is not set, SET_SYSTEM_SLEEP_PM_OPS() is expanded to
empty macro and there is no reference to rcar_pcie_resume(), hence the
following warning is generated:
drivers/pci/controller/pcie-rcar.c:1253:12: warning: ‘rcar_pcie_resume’ defined but not used [-Wunused-function]
1253 | static int rcar_pcie_resume(struct device *dev)
| ^~~~~~~~~~~~~~~~
Fix this by marking this function as __maybe_unused , just like in
commit 226e6b866d74 ("gpio: pch: Convert to dev_pm_ops")
Signed-off-by: Marek Vasut <marek.vasut+renesas@xxxxxxxxx>
Reported-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
Cc: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@xxxxxxx>
Cc: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
Cc: Wolfram Sang <wsa@xxxxxxxxxxxxx>
Cc: linux-renesas-soc@xxxxxxxxxxxxxxx
---
NOTE: Based on git://git.kernel.org/pub/scm/linux/kernel/git/lpieralisi/pci.git
branch pci/rcar
NOTE: The driver tag is now 'pcie-rcar' to distinguish it from pci-rcar-gen2.c
---
drivers/pci/controller/pcie-rcar.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/pci/controller/pcie-rcar.c b/drivers/pci/controller/pcie-rcar.c
index b58dfe415cb3..1a0e74cad9bb 100644
--- a/drivers/pci/controller/pcie-rcar.c
+++ b/drivers/pci/controller/pcie-rcar.c
@@ -1250,7 +1250,7 @@ static int rcar_pcie_probe(struct platform_device *pdev)
return err;
}
-static int rcar_pcie_resume(struct device *dev)
+static int __maybe_unused rcar_pcie_resume(struct device *dev)
{
struct rcar_pcie *pcie = dev_get_drvdata(dev);
int (*hw_init_fn)(struct rcar_pcie *);
--
2.25.1
