diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index 0bc4aa0ac9cf..672babd20cb1 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -1806,8 +1806,6 @@ static const struct action_ops snd_pcm_action_drain_init = {
 	.post_action = snd_pcm_post_drain_init
 };
 
-static int snd_pcm_drop(struct snd_pcm_substream *substream);
-
 /*
  * Drain the stream(s).
  * When the substream is linked, sync until the draining of all playback streams