[PATCH asoc] ASoC: zx: zx_i2s_dai can be static

[kbuild test robot]

Signed-off-by: Fengguang Wu <fengguang.wu@xxxxxxxxx>
---
 zx296702-i2s.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/zte/zx296702-i2s.c b/sound/soc/zte/zx296702-i2s.c
index cf6005c..472fde3 100644
--- a/sound/soc/zte/zx296702-i2s.c
+++ b/sound/soc/zte/zx296702-i2s.c
@@ -355,7 +355,7 @@ static const struct snd_soc_component_driver zx_i2s_component = {
 	.name			= "zx-i2s",
 };
 
-struct snd_soc_dai_driver zx_i2s_dai = {
+static struct snd_soc_dai_driver zx_i2s_dai = {
 	.name	= "zx-i2s-dai",
 	.id	= 0,
 	.probe	= zx_i2s_dai_probe,
--
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