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dmaengine: usb-dmac: Protect PM-only functions to kill warning 

If CONFIG_PM=n:

    drivers/dma/sh/usb-dmac.c:677: warning: ‘usb_dmac_runtime_suspend’ defined but not used
    drivers/dma/sh/usb-dmac.c:688: warning: ‘usb_dmac_runtime_resume’ defined but not used

Protect the unused functions by #ifdef CONFIG_PM to fix this.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
This commit is contained in:
Geert Uytterhoeven 2015-04-26 11:53:54 +02:00 committed by Vinod Koul
parent b787f68c36
commit 8ad31bf45d
1 changed files with 2 additions and 0 deletions
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2
drivers/dma/sh/usb-dmac.c
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@ -673,6 +673,7 @@ static struct dma_chan *usb_dmac_of_xlate(struct of_phandle_args *dma_spec,
* Power management * Power management
*/ */
#ifdef CONFIG_PM
static int usb_dmac_runtime_suspend(struct device *dev) static int usb_dmac_runtime_suspend(struct device *dev)
{ {
struct usb_dmac *dmac = dev_get_drvdata(dev); struct usb_dmac *dmac = dev_get_drvdata(dev);
@ -690,6 +691,7 @@ static int usb_dmac_runtime_resume(struct device *dev)
return usb_dmac_init(dmac); return usb_dmac_init(dmac);
} }
#endif /* CONFIG_PM */
static const struct dev_pm_ops usb_dmac_pm = { static const struct dev_pm_ops usb_dmac_pm = {
SET_RUNTIME_PM_OPS(usb_dmac_runtime_suspend, usb_dmac_runtime_resume, SET_RUNTIME_PM_OPS(usb_dmac_runtime_suspend, usb_dmac_runtime_resume,