[PATCH -next] ALSA: ac97: set variables dev_attr_vendor_id to static

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sparse reports
sound/ac97/bus.c:465:1: sparse: sparse: symbol 'dev_attr_vendor_id' was not declared. Should it be static?

This variable is only used in its defining file, so it should be static.

Reported-by: kernel test robot <lkp@xxxxxxxxx>
Closes: https://lore.kernel.org/oe-kbuild-all/202307242300.Oy0Dp2QI-lkp@xxxxxxxxx/
Signed-off-by: Yu Liao <liaoyu15@xxxxxxxxxx>
---
 sound/ac97/bus.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/ac97/bus.c b/sound/ac97/bus.c
index 6067c04ce4c0..3173e9d98927 100644
--- a/sound/ac97/bus.c
+++ b/sound/ac97/bus.c
@@ -462,7 +462,7 @@ static ssize_t vendor_id_show(struct device *dev,
 
 	return sysfs_emit(buf, "%08x", codec->vendor_id);
 }
-DEVICE_ATTR_RO(vendor_id);
+static DEVICE_ATTR_RO(vendor_id);
 
 static struct attribute *ac97_dev_attrs[] = {
 	&dev_attr_vendor_id.attr,
-- 
2.25.1




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