diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c
index dec8f9747fc6..73f4668238c6 100644
--- a/sound/pci/hda/patch_conexant.c
+++ b/sound/pci/hda/patch_conexant.c
@@ -397,6 +397,9 @@ static int conexant_eapd_put(struct snd_kcontrol *kcontrol,
 	return 1;
 }
 
+/* controls for test mode */
+#ifdef CONFIG_SND_DEBUG
+
 static int conexant_ch_mode_info(struct snd_kcontrol *kcontrol,
 				 struct snd_ctl_elem_info *uinfo)
 {
@@ -545,6 +548,8 @@ static int cxt_spdif_ctrl_put(struct snd_kcontrol *kcontrol,
 	  .put = cxt_spdif_ctrl_put, \
 	  .private_value = nid | (mask<<16) }
 
+#endif /* CONFIG_SND_DEBUG */
+
 /* Conexant 5045 specific */
 
 static hda_nid_t cxt5045_dac_nids[1] = { 0x19 };