[RFC,18/23] ALSA: pci/es1938: remove 'set but not used' warning
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Message ID 20200702193604.169059-19-pierre-louis.bossart@linux.intel.com
State New
Headers show
Series
  • ALSA: fix kernel-doc and W=1 warnings
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Commit Message

Pierre-Louis Bossart July 2, 2020, 7:35 p.m. UTC
Fix W=1 warning. Mark the 'audiostatus' variable as __always_unused.

sound/pci/es1938.c: In function ‘snd_es1938_interrupt’:
sound/pci/es1938.c:1622:24: warning: variable ‘audiostatus’ set but
not used [-Wunused-but-set-variable]
 1622 |  unsigned char status, audiostatus;
      |                        ^~~~~~~~~~~

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
---
 sound/pci/es1938.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

Patch
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diff --git a/sound/pci/es1938.c b/sound/pci/es1938.c
index b4a0adf7451c..09704a78d799 100644
--- a/sound/pci/es1938.c
+++ b/sound/pci/es1938.c
@@ -1619,7 +1619,8 @@  static int snd_es1938_create(struct snd_card *card,
 static irqreturn_t snd_es1938_interrupt(int irq, void *dev_id)
 {
 	struct es1938 *chip = dev_id;
-	unsigned char status, audiostatus;
+	unsigned char status;
+	__always_unused unsigned char audiostatus;
 	int handled = 0;
 
 	status = inb(SLIO_REG(chip, IRQCONTROL));