linux-kernel - [PATCH] ALSA: hda - fix unused Realtek function when PM is not enabled

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Date:   Sat, 30 Apr 2022 12:33:18 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
To:     linux-kernel@...r.kernel.org
Cc:     Randy Dunlap <rdunlap@...radead.org>,
        kernel test robot <lkp@...el.com>,
        Takashi Iwai <tiwai@...e.de>, Jaroslav Kysela <perex@...ex.cz>,
        alsa-devel@...a-project.org
Subject: [PATCH] ALSA: hda - fix unused Realtek function when PM is not enabled

When CONFIG_PM is not enabled, alc_shutup() is not needed,
so move it inside the #ifdef CONFIG_PM guard.
Also drop some contiguous #endif / #ifdef CONFIG_PM for simplicity.

Fixes this build warning:
sound/pci/hda/patch_realtek.c:886:20: warning: unused function 'alc_shutup'

Fixes: 08c189f2c552 ("ALSA: hda - Use generic parser codes for Realtek driver")
Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
Reported-by: kernel test robot <lkp@...el.com>
Cc: Takashi Iwai <tiwai@...e.de>
Cc: Jaroslav Kysela <perex@...ex.cz>
Cc: alsa-devel@...a-project.org
---
 sound/pci/hda/patch_realtek.c |    8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -937,6 +937,9 @@ static int alc_init(struct hda_codec *co
 	return 0;
 }
 
+#define alc_free	snd_hda_gen_free
+
+#ifdef CONFIG_PM
 static inline void alc_shutup(struct hda_codec *codec)
 {
 	struct alc_spec *spec = codec->spec;
@@ -950,9 +953,6 @@ static inline void alc_shutup(struct hda
 		alc_shutup_pins(codec);
 }
 
-#define alc_free	snd_hda_gen_free
-
-#ifdef CONFIG_PM
 static void alc_power_eapd(struct hda_codec *codec)
 {
 	alc_auto_setup_eapd(codec, false);
@@ -966,9 +966,7 @@ static int alc_suspend(struct hda_codec
 		spec->power_hook(codec);
 	return 0;
 }
-#endif
 
-#ifdef CONFIG_PM
 static int alc_resume(struct hda_codec *codec)
 {
 	struct alc_spec *spec = codec->spec;