[PATCH] ALSA: x86: mark hdmi suspend/resume functions as __maybe_unused

From	Arnd Bergmann <arnd@arndb.de>
Newsgroups	linux.kernel
Subject	[PATCH] ALSA: x86: mark hdmi suspend/resume functions as __maybe_unused
Date	2017-02-07 14:50 +0100
Message-ID	<t8ejE-3wo-9@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

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The two functions are unused when CONFIG_PM_SLEEP is disabled:

sound/x86/intel_hdmi_audio.c:1633:12: error: 'hdmi_lpe_audio_resume' defined but not used [-Werror=unused-function]
sound/x86/intel_hdmi_audio.c:1622:12: error: 'hdmi_lpe_audio_suspend' defined but not used [-Werror=unused-function]

Marking them as __maybe_unused avoids the warning without introducing an
ugly #ifdef.

Fixes: 182cdf23dbf6 ("ALSA: x86: Implement runtime PM")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 sound/x86/intel_hdmi_audio.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/x86/intel_hdmi_audio.c b/sound/x86/intel_hdmi_audio.c
index 8978dc9bf579..0d19a4994bac 100644
--- a/sound/x86/intel_hdmi_audio.c
+++ b/sound/x86/intel_hdmi_audio.c
@@ -1619,7 +1619,7 @@ static int hdmi_lpe_audio_runtime_suspend(struct device *dev)
 	return 0;
 }
 
-static int hdmi_lpe_audio_suspend(struct device *dev)
+static int __maybe_unused hdmi_lpe_audio_suspend(struct device *dev)
 {
 	struct snd_intelhad *ctx = dev_get_drvdata(dev);
 	int err;
@@ -1630,7 +1630,7 @@ static int hdmi_lpe_audio_suspend(struct device *dev)
 	return err;
 }
 
-static int hdmi_lpe_audio_resume(struct device *dev)
+static int __maybe_unused hdmi_lpe_audio_resume(struct device *dev)
 {
 	struct snd_intelhad *ctx = dev_get_drvdata(dev);
 
-- 
2.9.0

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[PATCH] ALSA: x86: mark hdmi suspend/resume functions as __maybe_unused Arnd Bergmann <arnd@arndb.de> - 2017-02-07 14:50 +0100
  Re: [PATCH] ALSA: x86: mark hdmi suspend/resume functions as __maybe_unused Takashi Iwai <tiwai@suse.de> - 2017-02-07 15:20 +0100
  Re: [PATCH] ALSA: x86: mark hdmi suspend/resume functions as  __maybe_unused Takashi Sakamoto <o-takashi@sakamocchi.jp> - 2017-02-07 15:30 +0100
    Re: [PATCH] ALSA: x86: mark hdmi suspend/resume functions as __maybe_unused Takashi Iwai <tiwai@suse.de> - 2017-02-07 16:20 +0100

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