linux-kernel - [PATCH] ALSA: hda - Fix unused warnings when !SND_HDA_NEEDS

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Date:	Wed, 20 Apr 2011 12:04:36 -0700
From:	Mike Waychison <mikew@...gle.com>
To:	Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.de>,
	alsa-devel@...a-project.org, linux-kernel@...r.kernel.org,
	Raymond Yau <superquad.vortex2@...il.com>,
	David Henningsson <david.henningsson@...onical.com>,
	Luke Yelavich <luke.yelavich@...onical.com>
Cc:	Mike Waychison <mikew@...gle.com>
Subject: [PATCH] ALSA: hda - Fix unused warnings when !SND_HDA_NEEDS_RESUME

When SND_HDA_NEEDS_RESUME is not defined, the compiler identifies that
the following symbols are static but not used:

 restore_shutup_pins
 hda_cleanup_all_streams

Fix warnings by adding SND_HDA_NEEDS_RESUME guards.

Signed-off-by: Mike Waychison <mikew@...gle.com>
---
v2:
- Applies to v2.6.39-rc4.
- Dropped moving ad198x_power_eapd and ad198x_power_eapd_write at
  Takashi Iwai <tiwai@...e.de>'s request.
---
 sound/pci/hda/hda_codec.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 430f41d..759ade1 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -937,6 +937,7 @@ void snd_hda_shutup_pins(struct hda_codec *codec)
 }
 EXPORT_SYMBOL_HDA(snd_hda_shutup_pins);
 
+#ifdef SND_HDA_NEEDS_RESUME
 /* Restore the pin controls cleared previously via snd_hda_shutup_pins() */
 static void restore_shutup_pins(struct hda_codec *codec)
 {
@@ -953,6 +954,7 @@ static void restore_shutup_pins(struct hda_codec *codec)
 	}
 	codec->pins_shutup = 0;
 }
+#endif
 
 static void init_hda_cache(struct hda_cache_rec *cache,
 			   unsigned int record_size);
@@ -1329,6 +1331,7 @@ static void purify_inactive_streams(struct hda_codec *codec)
 	}
 }
 
+#ifdef SND_HDA_NEEDS_RESUME
 /* clean up all streams; called from suspend */
 static void hda_cleanup_all_streams(struct hda_codec *codec)
 {
@@ -1340,6 +1343,7 @@ static void hda_cleanup_all_streams(struct hda_codec *codec)
 			really_cleanup_stream(codec, p);
 	}
 }
+#endif
 
 /*
  * amp access functions
-- 
1.7.3.1

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