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Subject[PATCH] ASoC: rsnd: mark PM functions __maybe_unused
The suspend/resume callbacks are now optional, leading to a warning
when they are unused:

sound/soc/sh/rcar/core.c:1548:12: error: 'rsnd_resume' defined but not used [-Werror=unused-function]
static int rsnd_resume(struct device *dev)
sound/soc/sh/rcar/core.c:1539:12: error: 'rsnd_suspend' defined but not used [-Werror=unused-function]
static int rsnd_suspend(struct device *dev)

This marks the as __maybe_unused to avoid the warning.

Fixes: f8a9a29c4fe9 ("ASoC: rsnd: set pm_ops in hibernate-compatible way")
Signed-off-by: Arnd Bergmann <>
sound/soc/sh/rcar/core.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/sh/rcar/core.c b/sound/soc/sh/rcar/core.c
index 6a76688a8ba9..94f081b93258 100644
--- a/sound/soc/sh/rcar/core.c
+++ b/sound/soc/sh/rcar/core.c
@@ -1536,7 +1536,7 @@ static int rsnd_remove(struct platform_device *pdev)
return ret;

-static int rsnd_suspend(struct device *dev)
+static int __maybe_unused rsnd_suspend(struct device *dev)
struct rsnd_priv *priv = dev_get_drvdata(dev);

@@ -1545,7 +1545,7 @@ static int rsnd_suspend(struct device *dev)
return 0;

-static int rsnd_resume(struct device *dev)
+static int __maybe_unused rsnd_resume(struct device *dev)
struct rsnd_priv *priv = dev_get_drvdata(dev);

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