The #ifdef protection around the PM functions is wrong, leading to a failed reference in some configurations:

sound/pci/hda/hda_tegra.c: In function 'hda_tegra_runtime_suspend': sound/pci/hda/hda_tegra.c:273:2: error: implicit declaration of function 'hda_tegra_disable_clocks'; did you mean 'hda_tegra_enable_clocks'? [-Werror=implicit-function-declaration]

Better remove the #ifdefs entirely and rely on the compiler silently dropping unused functions marked __maybe_unused.

Fixes: 707e0759f2f4 ("ALSA: hda/tegra: implement runtime suspend/resume") Signed-off-by: Arnd Bergmann arnd@arndb.de --- sound/pci/hda/hda_tegra.c | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/sound/pci/hda/hda_tegra.c b/sound/pci/hda/hda_tegra.c index dbd8da5685cb..3d68f9ef7694 100644 --- a/sound/pci/hda/hda_tegra.c +++ b/sound/pci/hda/hda_tegra.c @@ -219,7 +219,6 @@ static int hda_tegra_enable_clocks(struct hda_tegra *data) return rc; }

-#ifdef CONFIG_PM_SLEEP static void hda_tegra_disable_clocks(struct hda_tegra *data) { clk_disable_unprepare(data->hda2hdmi_clk); @@ -230,7 +229,7 @@ static void hda_tegra_disable_clocks(struct hda_tegra *data) /* * power management */ -static int hda_tegra_suspend(struct device *dev) +static int __maybe_unused hda_tegra_suspend(struct device *dev) { struct snd_card *card = dev_get_drvdata(dev); int rc; @@ -243,7 +242,7 @@ static int hda_tegra_suspend(struct device *dev) return 0; }

-static int hda_tegra_resume(struct device *dev) +static int __maybe_unused hda_tegra_resume(struct device *dev) { struct snd_card *card = dev_get_drvdata(dev); int rc; @@ -255,10 +254,8 @@ static int hda_tegra_resume(struct device *dev)

return 0; } -#endif /* CONFIG_PM_SLEEP */

-#ifdef CONFIG_PM -static int hda_tegra_runtime_suspend(struct device *dev) +static int __maybe_unused hda_tegra_runtime_suspend(struct device *dev) { struct snd_card *card = dev_get_drvdata(dev); struct azx *chip = card->private_data; @@ -275,7 +272,7 @@ static int hda_tegra_runtime_suspend(struct device *dev) return 0; }

-static int hda_tegra_runtime_resume(struct device *dev) +static int __maybe_unused hda_tegra_runtime_resume(struct device *dev) { struct snd_card *card = dev_get_drvdata(dev); struct azx *chip = card->private_data; @@ -292,7 +289,6 @@ static int hda_tegra_runtime_resume(struct device *dev)

return 0; } -#endif /* CONFIG_PM */

static const struct dev_pm_ops hda_tegra_pm = { SET_SYSTEM_SLEEP_PM_OPS(hda_tegra_suspend, hda_tegra_resume)