[PATCH] mtd: elm: compile suspend/resume only with PM_SLEEP

[Gupta, Pekon]

>From: Wolfram Sang <wsa at sang-engineering.com>
>
>Fixes:
>drivers/mtd/devices/elm.c:480:12: warning: 'elm_suspend' defined but not used [-Wunused-function]
>drivers/mtd/devices/elm.c:488:12: warning: 'elm_resume' defined but not used [-Wunused-function]
>
>Signed-off-by: Wolfram Sang <wsa at sang-engineering.com>
>---
> drivers/mtd/devices/elm.c | 2 ++
> 1 file changed, 2 insertions(+)
>
>diff --git a/drivers/mtd/devices/elm.c b/drivers/mtd/devices/elm.c
>index 1fd4a0f77967..0a037b15c11b 100644
>--- a/drivers/mtd/devices/elm.c
>+++ b/drivers/mtd/devices/elm.c
>@@ -418,6 +418,7 @@ static int elm_remove(struct platform_device *pdev)
> 	return 0;
> }
>
>+#ifdef CONFIG_PM_SLEEP
> /**
>  * elm_context_save
>  * saves ELM configurations to preserve them across Hardware powered-down
>@@ -509,6 +510,7 @@ static int elm_resume(struct device *dev)
> 	elm_context_restore(info);
> 	return 0;
> }
>+#endif
>
> static SIMPLE_DEV_PM_OPS(elm_pm_ops, elm_suspend, elm_resume);
>
>--
>1.9.1
>
Acked-by: Pekon Gupta <pekon at ti.com>

I think it's safe to mark it for stable also
CC: <stable at vger.kernel.org> # 3.12.x+

with regards, pekon