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dmaengine: sirf: use __maybe_unused to hide pm functions

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The sirf dma driver uses #ifdef to check for CONFIG_PM_SLEEP
for its suspend/resume code but then has no #ifdef for the
respective runtime PM code, so we get a warning if CONFIG_PM
is disabled altogether:

drivers/dma/sirf-dma.c:1000:12: error: 'sirfsoc_dma_runtime_resume' defined but not used [-Werror=unused-function]

This removes the existing #ifdef and instead uses __maybe_unused
annotations for all four functions to let the compiler know it
can silently drop the function definition.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
This commit is contained in:
Arnd Bergmann 2016-03-02 16:58:58 +01:00 committed by Vinod Koul
parent 333f16ec68
commit 6ff1cb88a7
1 changed files with 4 additions and 6 deletions
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10
drivers/dma/sirf-dma.c
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@ -989,7 +989,7 @@ static int sirfsoc_dma_remove(struct platform_device *op)
return 0;
}
static int sirfsoc_dma_runtime_suspend(struct device *dev)
static int __maybe_unused sirfsoc_dma_runtime_suspend(struct device *dev)
{
struct sirfsoc_dma *sdma = dev_get_drvdata(dev);
@ -997,7 +997,7 @@ static int sirfsoc_dma_runtime_suspend(struct device *dev)
return 0;
}
static int sirfsoc_dma_runtime_resume(struct device *dev)
static int __maybe_unused sirfsoc_dma_runtime_resume(struct device *dev)
{
struct sirfsoc_dma *sdma = dev_get_drvdata(dev);
int ret;
@ -1010,8 +1010,7 @@ static int sirfsoc_dma_runtime_resume(struct device *dev)
return 0;
}
#ifdef CONFIG_PM_SLEEP
static int sirfsoc_dma_pm_suspend(struct device *dev)
static int __maybe_unused sirfsoc_dma_pm_suspend(struct device *dev)
{
struct sirfsoc_dma *sdma = dev_get_drvdata(dev);
struct sirfsoc_dma_regs *save = &sdma->regs_save;
@ -1062,7 +1061,7 @@ static int sirfsoc_dma_pm_suspend(struct device *dev)
return 0;
}
static int sirfsoc_dma_pm_resume(struct device *dev)
static int __maybe_unused sirfsoc_dma_pm_resume(struct device *dev)
{
struct sirfsoc_dma *sdma = dev_get_drvdata(dev);
struct sirfsoc_dma_regs *save = &sdma->regs_save;
@ -1121,7 +1120,6 @@ static int sirfsoc_dma_pm_resume(struct device *dev)
return 0;
}
#endif
static const struct dev_pm_ops sirfsoc_dma_pm_ops = {
SET_RUNTIME_PM_OPS(sirfsoc_dma_runtime_suspend, sirfsoc_dma_runtime_resume, NULL)