linux-kernel - [PATCH] ALSA: hda - Add CONFIG_SND_HDA_POWER_SAVE to stac_vrefout

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Date:	Wed, 10 Aug 2011 16:01:04 +0800
From:	stufever@...il.com
To:	linux-kernel@...r.kernel.org
Cc:	tiwai@...e.de, Wang Shaoyan <wangshaoyan.pt@...bao.com>
Subject: [PATCH] ALSA: hda - Add CONFIG_SND_HDA_POWER_SAVE to stac_vrefout_set()

From: Wang Shaoyan <wangshaoyan.pt@...bao.com>

In commit 45eebda7, it add new function stac_vrefout_set, but it
is only used in code between CONFIG_SND_HDA_POWER_SAVE macro, so
add the macro to avoid such warning:

  sound/pci/hda/patch_sigmatel.c:676:12: warning: 'stac_vrefout_set' defined but not used

Signed-off-by: Wang Shaoyan <wangshaoyan.pt@...bao.com>
---
 sound/pci/hda/patch_sigmatel.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index aa376b5..5145b66 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -673,6 +673,7 @@ static int stac92xx_smux_enum_put(struct snd_kcontrol *kcontrol,
 	return 0;
 }
 
+#ifdef CONFIG_SND_HDA_POWER_SAVE
 static int stac_vrefout_set(struct hda_codec *codec,
 					hda_nid_t nid, unsigned int new_vref)
 {
@@ -696,6 +697,7 @@ static int stac_vrefout_set(struct hda_codec *codec,
 
 	return 1;
 }
+#endif
 
 static unsigned int stac92xx_vref_set(struct hda_codec *codec,
 					hda_nid_t nid, unsigned int new_vref)
-- 
1.7.4.1

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