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Subject[PATCH] mailbox: tegra-hsp: mark PM functions as __maybe_unused
Without CONFIG_PM_SLEEP, we get annoying warnings about unused

drivers/mailbox/tegra-hsp.c:782:12: warning: ‘tegra_hsp_resume’ defined but not used [-Wunused-function]
static int tegra_hsp_resume(struct device *dev)

Mark them as __maybe_unused to shut up the warning and silently drop the
functions without having to add ugly #ifdefs.

Fixes: 9a63f0f40599 ("mailbox: tegra-hsp: Add suspend/resume support")
Signed-off-by: Anders Roxell <>
drivers/mailbox/tegra-hsp.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mailbox/tegra-hsp.c b/drivers/mailbox/tegra-hsp.c
index e443f6a2ec4b..b9ce823f79ab 100644
--- a/drivers/mailbox/tegra-hsp.c
+++ b/drivers/mailbox/tegra-hsp.c
@@ -779,7 +779,7 @@ static int tegra_hsp_probe(struct platform_device *pdev)
return 0;

-static int tegra_hsp_resume(struct device *dev)
+static __maybe_unused int tegra_hsp_resume(struct device *dev)
struct tegra_hsp *hsp = dev_get_drvdata(dev);
unsigned int i;
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