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Subject[PATCH] iommu: omap: mark pm functions __maybe_unused
Date
The runtime_pm functions are unused when CONFIG_PM is disabled:

drivers/iommu/omap-iommu.c:1022:12: error: unused function 'omap_iommu_runtime_suspend' [-Werror,-Wunused-function]
static int omap_iommu_runtime_suspend(struct device *dev)
drivers/iommu/omap-iommu.c:1064:12: error: unused function 'omap_iommu_runtime_resume' [-Werror,-Wunused-function]
static int omap_iommu_runtime_resume(struct device *dev)

Mark them as __maybe_unused to let gcc silently drop them
instead of warning.

Fixes: db8918f61d51 ("iommu/omap: streamline enable/disable through runtime pm callbacks")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
drivers/iommu/omap-iommu.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/iommu/omap-iommu.c b/drivers/iommu/omap-iommu.c
index 451e3c98ab2d..09c6e1c680db 100644
--- a/drivers/iommu/omap-iommu.c
+++ b/drivers/iommu/omap-iommu.c
@@ -1019,7 +1019,7 @@ EXPORT_SYMBOL_GPL(omap_iommu_domain_activate);
* reset line. This function also saves the context of any
* locked TLBs if suspending.
**/
-static int omap_iommu_runtime_suspend(struct device *dev)
+static __maybe_unused int omap_iommu_runtime_suspend(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct iommu_platform_data *pdata = dev_get_platdata(dev);
@@ -1061,7 +1061,7 @@ static int omap_iommu_runtime_suspend(struct device *dev)
* reset line. The function also restores any locked TLBs if
* resuming after a suspend.
**/
-static int omap_iommu_runtime_resume(struct device *dev)
+static __maybe_unused int omap_iommu_runtime_resume(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct iommu_platform_data *pdata = dev_get_platdata(dev);
--
2.20.0
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