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amba: tegra-ahb: Mark PM functions as __maybe_unused 

clang warns about an unused variable when CONFIG_PM is disabled, since
it is only referenced from an #ifdef:

drivers/amba/tegra-ahb.c:97:18: error: variable 'tegra_ahb_gizmo' is not needed and will not be emitted [-Werror,-Wunneeded-internal-declaration]

Rather than trying to get the #ifdef right, remove it and use
__maybe_unused here, which is less error prone.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Arnd Bergmann 2019-04-26 16:56:03 +02:00 committed by Thierry Reding
parent 1427736e64
commit 6d6165603e
1 changed files with 2 additions and 4 deletions
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6
drivers/amba/tegra-ahb.c
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@ -170,8 +170,7 @@ int tegra_ahb_enable_smmu(struct device_node *dn)
EXPORT_SYMBOL(tegra_ahb_enable_smmu);
#endif
#ifdef CONFIG_PM
static int tegra_ahb_suspend(struct device *dev)
static int __maybe_unused tegra_ahb_suspend(struct device *dev)
{
int i;
struct tegra_ahb *ahb = dev_get_drvdata(dev);
@ -181,7 +180,7 @@ static int tegra_ahb_suspend(struct device *dev)
return 0;
}
static int tegra_ahb_resume(struct device *dev)
static int __maybe_unused tegra_ahb_resume(struct device *dev)
{
int i;
struct tegra_ahb *ahb = dev_get_drvdata(dev);
@ -190,7 +189,6 @@ static int tegra_ahb_resume(struct device *dev)
gizmo_writel(ahb, ahb->ctx[i], tegra_ahb_gizmo[i]);
return 0;
}
#endif
static UNIVERSAL_DEV_PM_OPS(tegra_ahb_pm,
tegra_ahb_suspend,