hwrng: omap - remove #ifdefery around PM methods

Instead of using #ifdefs let's mark suspend and resume methods as
__maybe_unused which will suppress compiler warnings about them being
unused and provide better compile coverage.

Because SIMPLE_DEV_PM_OPS() produces an empty omap_rng_pm structure in
case of !CONFIG_PM_SLEEP neither omap_rng_suspend nor omap_rng_resume
will end up being referenced and the change will not result in
increasing image size.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/drivers/char/hw_random/omap-rng.c b/drivers/char/hw_random/omap-rng.c
index 7f3597d..5c171b1 100644 (file)
--- a/drivers/char/hw_random/omap-rng.c
+++ b/drivers/char/hw_random/omap-rng.c
@@ -422,9 +422,7 @@ static int omap_rng_remove(struct platform_device *pdev)
        return 0;
 }
 
-#ifdef CONFIG_PM_SLEEP
-
-static int omap_rng_suspend(struct device *dev)
+static int __maybe_unused omap_rng_suspend(struct device *dev)
 {
        struct omap_rng_dev *priv = dev_get_drvdata(dev);
 
@@ -434,7 +432,7 @@ static int omap_rng_suspend(struct device *dev)
        return 0;
 }
 
-static int omap_rng_resume(struct device *dev)
+static int __maybe_unused omap_rng_resume(struct device *dev)
 {
        struct omap_rng_dev *priv = dev_get_drvdata(dev);
 
@@ -445,18 +443,11 @@ static int omap_rng_resume(struct device *dev)
 }
 
 static SIMPLE_DEV_PM_OPS(omap_rng_pm, omap_rng_suspend, omap_rng_resume);
-#define        OMAP_RNG_PM     (&omap_rng_pm)
-
-#else
-
-#define        OMAP_RNG_PM     NULL
-
-#endif
 
 static struct platform_driver omap_rng_driver = {
        .driver = {
                .name           = "omap_rng",
-               .pm             = OMAP_RNG_PM,
+               .pm             = &omap_rng_pm,
                .of_match_table = of_match_ptr(omap_rng_of_match),
        },
        .probe          = omap_rng_probe,