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| author | Arnd Bergmann <arnd@arndb.de> | 2016-09-06 15:24:00 +0200 |
|---|---|---|
| committer | Lee Jones <lee.jones@linaro.org> | 2016-10-04 15:48:04 +0100 |
| commit | 22a96b85eabd05a77bd1388d041d96ccc8f86459 (patch) | |
| tree | 50c1cdcbc515489613e63418a6dcbfe4bf8b1567 /drivers/mfd/exynos-lpass.c | |
| parent | c50cdd62dda3f885c1e6ca8b3d5a0851c911ec54 (diff) | |
| download | lwn-22a96b85eabd05a77bd1388d041d96ccc8f86459.tar.gz lwn-22a96b85eabd05a77bd1388d041d96ccc8f86459.zip | |
mfd: exynos-lpass: Mark PM functions as __maybe_unused
The newly added exynos lpass driver produces a build warning when
CONFIG_PM is disabled since the only callers of exynos_lpass_disable
are under an #ifdef:
drivers/mfd/exynos-lpass.c:93:13: error: 'exynos_lpass_disable' defined but not used [-Werror=unused-function]
static void exynos_lpass_disable(struct exynos_lpass *lpass)
This removes the #ifdef and replaces it with __maybe_unused annotations
so the compiler can leave out the unused code silently with less
room for mistakes.
Fixes: 36c26760bba8 ("mfd: Add Samsung Exynos Low Power Audio Subsystem driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'drivers/mfd/exynos-lpass.c')
| -rw-r--r-- | drivers/mfd/exynos-lpass.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/mfd/exynos-lpass.c b/drivers/mfd/exynos-lpass.c index 578ac7b57b96..2e064fb8826f 100644 --- a/drivers/mfd/exynos-lpass.c +++ b/drivers/mfd/exynos-lpass.c @@ -144,8 +144,7 @@ static int exynos_lpass_probe(struct platform_device *pdev) return of_platform_populate(dev->of_node, NULL, NULL, dev); } -#ifdef CONFIG_PM_SLEEP -static int exynos_lpass_suspend(struct device *dev) +static int __maybe_unused exynos_lpass_suspend(struct device *dev) { struct exynos_lpass *lpass = dev_get_drvdata(dev); @@ -154,7 +153,7 @@ static int exynos_lpass_suspend(struct device *dev) return 0; } -static int exynos_lpass_resume(struct device *dev) +static int __maybe_unused exynos_lpass_resume(struct device *dev) { struct exynos_lpass *lpass = dev_get_drvdata(dev); @@ -162,7 +161,6 @@ static int exynos_lpass_resume(struct device *dev) return 0; } -#endif static SIMPLE_DEV_PM_OPS(lpass_pm_ops, exynos_lpass_suspend, exynos_lpass_resume); |