mixer: Fix unused parameter warnings

mixer_simple.h:35:64: warning: unused parameter 'mixer' [-Wunused-parameter]
 static inline int snd_mixer_simple_basic_register(snd_mixer_t *mixer,
                                                                ^
mixer_simple.h:36:40: warning: unused parameter 'options' [-Wunused-parameter]
         struct snd_mixer_selem_regopt *options,
                                        ^
mixer_simple.h:37:29: warning: unused parameter 'classp' [-Wunused-parameter]
         snd_mixer_class_t **classp)
                             ^

Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/src/mixer/mixer_simple.h b/src/mixer/mixer_simple.h
index 116eebd92f652f7bd4410da66c30def51d78d6cc..f6117da85b37fafe43c7e36b7e7f384946d19a27 100644 (file)
--- a/src/mixer/mixer_simple.h
+++ b/src/mixer/mixer_simple.h
@@ -32,9 +32,9 @@ int snd_mixer_simple_none_register(snd_mixer_t *mixer, struct snd_mixer_selem_re
 #ifdef HAVE_LIBDL
 int snd_mixer_simple_basic_register(snd_mixer_t *mixer, struct snd_mixer_selem_regopt *options, snd_mixer_class_t **classp);
 #else
-static inline int snd_mixer_simple_basic_register(snd_mixer_t *mixer,
-                                                 struct snd_mixer_selem_regopt *options,
-                                                 snd_mixer_class_t **classp)
+static inline int snd_mixer_simple_basic_register(snd_mixer_t *mixer ATTRIBUTE_UNUSED,
+                                                 struct snd_mixer_selem_regopt *options ATTRIBUTE_UNUSED,
+                                                 snd_mixer_class_t **classp ATTRIBUTE_UNUSED)
 {
        return -ENXIO;
 }