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staging: greybus: arche-apb-ctrl: fix unused warnings on resume/suspend 

When CONFIG_PM_SLEEP is disabled, SIMPLE_DEV_PM_OPS does not use
arche_apb_ctrl_resume and arche_apb_ctrl_suspend functions:

drivers/staging/greybus/arche-apb-ctrl.c:478:12: warning:
‘arche_apb_ctrl_resume’ defined but not used [-Wunused-function]
 static int arche_apb_ctrl_resume(struct device *dev)
            ^~~~~~~~~~~~~~~~~~~~~
drivers/staging/greybus/arche-apb-ctrl.c:464:12: warning:
‘arche_apb_ctrl_suspend’ defined but not used [-Wunused-function]
 static int arche_apb_ctrl_suspend(struct device *dev)
            ^~~~~~~~~~~~~~~~~~~~~~

Adding __maybe_unused to the declaration of these functions removes the
warnings.

Signed-off-by: Jérémy Lefaure <jeremy.lefaure@lse.epita.fr>
Acked-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jérémy Lefaure 2016-12-16 19:33:02 -05:00 committed by Greg Kroah-Hartman
parent f05a88a39c
commit 6da8086375
1 changed files with 2 additions and 2 deletions
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4
drivers/staging/greybus/arche-apb-ctrl.c
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@ -461,7 +461,7 @@ static int arche_apb_ctrl_remove(struct platform_device *pdev)
return 0;
}
static int arche_apb_ctrl_suspend(struct device *dev)
static int __maybe_unused arche_apb_ctrl_suspend(struct device *dev)
{
/*
* If timing profile permits, we may shutdown bridge
@ -475,7 +475,7 @@ static int arche_apb_ctrl_suspend(struct device *dev)
return 0;
}
static int arche_apb_ctrl_resume(struct device *dev)
static int __maybe_unused arche_apb_ctrl_resume(struct device *dev)
{
/*
* Atleast for ES2 we have to meet the delay requirement between