Index: linux-2.6.21.7/include/sound/pcm_params.h
===================================================================
--- linux-2.6.21.7.orig/include/sound/pcm_params.h
+++ linux-2.6.21.7/include/sound/pcm_params.h
@@ -179,16 +179,8 @@ static inline int snd_mask_single(const 
 	return 1;
 }
 
-static inline int snd_mask_refine(struct snd_mask *mask,
-				  const struct snd_mask *v)
-{
-	struct snd_mask old;
-	snd_mask_copy(&old, mask);
-	snd_mask_intersect(mask, v);
-	if (snd_mask_empty(mask))
-		return -EINVAL;
-	return !snd_mask_eq(mask, &old);
-}
+void snd_mask_print( const struct snd_mask *m1, const struct snd_mask *m2 );
+int snd_mask_refine(struct snd_mask *mask, const struct snd_mask *v);
 
 static inline int snd_mask_refine_first(struct snd_mask *mask)
 {
Index: linux-2.6.21.7/sound/core/pcm_lib.c
===================================================================
--- linux-2.6.21.7.orig/sound/core/pcm_lib.c
+++ linux-2.6.21.7/sound/core/pcm_lib.c
@@ -2128,3 +2128,18 @@ snd_pcm_sframes_t snd_pcm_lib_readv(stru
 }
 
 EXPORT_SYMBOL(snd_pcm_lib_readv);
+
+int snd_mask_refine(struct snd_mask *mask,
+				  const struct snd_mask *v)
+{
+	struct snd_mask old;
+	snd_mask_copy(&old, mask);
+	snd_mask_print(mask, v);
+	snd_mask_intersect(mask, v);
+	snd_mask_print(mask, v);
+	if (snd_mask_empty(mask))
+		return -EINVAL;
+	return !snd_mask_eq(mask, &old);
+}
+
+EXPORT_SYMBOL(snd_mask_refine);
Index: linux-2.6.21.7/sound/core/pcm_native.c
===================================================================
--- linux-2.6.21.7.orig/sound/core/pcm_native.c
+++ linux-2.6.21.7/sound/core/pcm_native.c
@@ -3450,3 +3450,9 @@ const struct file_operations snd_pcm_f_o
 		.fasync =		snd_pcm_fasync,
 	}
 };
+
+void snd_mask_print( const struct snd_mask *m1, const struct snd_mask *m2 )
+{
+//    printk( "0x%08x %08x v: 0x%08x %08x\n", m1->bits[1], m1->bits[0], m2->bits[1], m2->bits[0] );
+}
+