ALSA: pci/via82xx: remove 'set but not used' warnings

Fix W=1 warnings. Mark variables as __always_unused.

sound/pci/via82xx.c: In function ‘snd_via82xx_codec_wait’:
sound/pci/via82xx.c:547:6: warning: variable ‘err’ set but not used
[-Wunused-but-set-variable]
  547 |  int err;
      |      ^~~
sound/pci/via82xx_modem.c: In function ‘snd_via82xx_codec_wait’:
sound/pci/via82xx_modem.c:401:6: warning: variable ‘err’ set but not
used [-Wunused-but-set-variable]
  401 |  int err;
      |      ^~~

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200702193604.169059-21-pierre-louis.bossart@linux.intel.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/pci/via82xx.c b/sound/pci/via82xx.c
index 8b03e2d..7abd47d 100644 (file)
--- a/sound/pci/via82xx.c
+++ b/sound/pci/via82xx.c
@@ -544,7 +544,7 @@ static int snd_via82xx_codec_valid(struct via82xx *chip, int secondary)
 static void snd_via82xx_codec_wait(struct snd_ac97 *ac97)
 {
        struct via82xx *chip = ac97->private_data;
-       int err;
+       __always_unused int err;
        err = snd_via82xx_codec_ready(chip, ac97->num);
        /* here we need to wait fairly for long time.. */
        if (!nodelay)

diff --git a/sound/pci/via82xx_modem.c b/sound/pci/via82xx_modem.c
index 607b710..addfa19 100644 (file)
--- a/sound/pci/via82xx_modem.c
+++ b/sound/pci/via82xx_modem.c
@@ -398,7 +398,7 @@ static int snd_via82xx_codec_valid(struct via82xx_modem *chip, int secondary)
 static void snd_via82xx_codec_wait(struct snd_ac97 *ac97)
 {
        struct via82xx_modem *chip = ac97->private_data;
-       int err;
+       __always_unused int err;
        err = snd_via82xx_codec_ready(chip, ac97->num);
        /* here we need to wait fairly for long time.. */
        msleep(500);