[PATCH 3/3] ASoC: Drop snd_soc_card_get_kcontrol_locked()

[Takashi Iwai <tiwai@xxxxxxx>]

The recent cleanup in ALSA control core made no difference between
snd_ctl_find_id_mixer() and snd_ctl_find_id_mixer_locked(), and the
latter is to be dropped.  The only user of the left API was ASoC, and
that's snd_soc_card_get_kcontrol_locked().

This patch drops snd_soc_card_get_kcontrol_locked() and rewrites its
users to call snd_soc_card_get_kcontrol() instead.  The test of the
API became superfluous, hence dropped as well.

As all callers of snd_ctl_find_id_mixer_locked() are gone,
snd_ctl_find_id_mixer_locked() is finally dropped, too.

Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
---
 include/sound/control.h    |  7 -----
 include/sound/soc-card.h   |  2 --
 sound/soc/codecs/cs35l45.c |  2 +-
 sound/soc/fsl/fsl_xcvr.c   |  2 +-
 sound/soc/soc-card-test.c  | 57 --------------------------------------
 sound/soc/soc-card.c       | 10 -------
 6 files changed, 2 insertions(+), 78 deletions(-)

diff --git a/include/sound/control.h b/include/sound/control.h
index 6f9d3b8350ce..e07f6b960641 100644
--- a/include/sound/control.h
+++ b/include/sound/control.h
@@ -165,13 +165,6 @@ snd_ctl_find_id_mixer(struct snd_card *card, const char *name)
 	return snd_ctl_find_id(card, &id);
 }
 
-/* to be removed */
-static inline struct snd_kcontrol *
-snd_ctl_find_id_mixer_locked(struct snd_card *card, const char *name)
-{
-	return snd_ctl_find_id_mixer(card, name);
-}
-
 int snd_ctl_create(struct snd_card *card);
 
 int snd_ctl_register_ioctl(snd_kctl_ioctl_func_t fcn);
diff --git a/include/sound/soc-card.h b/include/sound/soc-card.h
index 1f4c39922d82..ecc02e955279 100644
--- a/include/sound/soc-card.h
+++ b/include/sound/soc-card.h
@@ -30,8 +30,6 @@ static inline void snd_soc_card_mutex_unlock(struct snd_soc_card *card)
 
 struct snd_kcontrol *snd_soc_card_get_kcontrol(struct snd_soc_card *soc_card,
 					       const char *name);
-struct snd_kcontrol *snd_soc_card_get_kcontrol_locked(struct snd_soc_card *soc_card,
-						      const char *name);
 int snd_soc_card_jack_new(struct snd_soc_card *card, const char *id, int type,
 			  struct snd_soc_jack *jack);
 int snd_soc_card_jack_new_pins(struct snd_soc_card *card, const char *id,
diff --git a/sound/soc/codecs/cs35l45.c b/sound/soc/codecs/cs35l45.c
index 2392c6effed8..44c221745c3b 100644
--- a/sound/soc/codecs/cs35l45.c
+++ b/sound/soc/codecs/cs35l45.c
@@ -184,7 +184,7 @@ static int cs35l45_activate_ctl(struct snd_soc_component *component,
 	else
 		snprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, "%s", ctl_name);
 
-	kcontrol = snd_soc_card_get_kcontrol_locked(component->card, name);
+	kcontrol = snd_soc_card_get_kcontrol(component->card, name);
 	if (!kcontrol) {
 		dev_err(component->dev, "Can't find kcontrol %s\n", name);
 		return -EINVAL;
diff --git a/sound/soc/fsl/fsl_xcvr.c b/sound/soc/fsl/fsl_xcvr.c
index bf9a4e90978e..c98e3db74fe7 100644
--- a/sound/soc/fsl/fsl_xcvr.c
+++ b/sound/soc/fsl/fsl_xcvr.c
@@ -186,7 +186,7 @@ static int fsl_xcvr_activate_ctl(struct snd_soc_dai *dai, const char *name,
 
 	lockdep_assert_held(&card->snd_card->controls_rwsem);
 
-	kctl = snd_soc_card_get_kcontrol_locked(card, name);
+	kctl = snd_soc_card_get_kcontrol(card, name);
 	if (kctl == NULL)
 		return -ENOENT;
 
diff --git a/sound/soc/soc-card-test.c b/sound/soc/soc-card-test.c
index e4a4b101d743..47dfd8b1babc 100644
--- a/sound/soc/soc-card-test.c
+++ b/sound/soc/soc-card-test.c
@@ -67,62 +67,6 @@ static void test_snd_soc_card_get_kcontrol(struct kunit *test)
 	KUNIT_EXPECT_NULL(test, kc);
 }
 
-static void test_snd_soc_card_get_kcontrol_locked(struct kunit *test)
-{
-	struct soc_card_test_priv *priv = test->priv;
-	struct snd_soc_card *card = priv->card;
-	struct snd_kcontrol *kc, *kcw;
-	struct soc_mixer_control *mc;
-	int i, ret;
-
-	ret = snd_soc_add_card_controls(card, test_card_controls, ARRAY_SIZE(test_card_controls));
-	KUNIT_ASSERT_EQ(test, ret, 0);
-
-	/* Look up every control */
-	for (i = 0; i < ARRAY_SIZE(test_card_controls); ++i) {
-		down_read(&card->snd_card->controls_rwsem);
-		kc = snd_soc_card_get_kcontrol_locked(card, test_card_controls[i].name);
-		up_read(&card->snd_card->controls_rwsem);
-		KUNIT_EXPECT_NOT_ERR_OR_NULL_MSG(test, kc, "Failed to find '%s'\n",
-						 test_card_controls[i].name);
-		if (!kc)
-			continue;
-
-		/* Test that it is the correct control */
-		mc = (struct soc_mixer_control *)kc->private_value;
-		KUNIT_EXPECT_EQ_MSG(test, mc->shift, i, "For '%s'\n", test_card_controls[i].name);
-
-		down_write(&card->snd_card->controls_rwsem);
-		kcw = snd_soc_card_get_kcontrol_locked(card, test_card_controls[i].name);
-		up_write(&card->snd_card->controls_rwsem);
-		KUNIT_EXPECT_NOT_ERR_OR_NULL_MSG(test, kcw, "Failed to find '%s'\n",
-						 test_card_controls[i].name);
-
-		KUNIT_EXPECT_PTR_EQ(test, kc, kcw);
-	}
-
-	/* Test some names that should not be found */
-	down_read(&card->snd_card->controls_rwsem);
-	kc = snd_soc_card_get_kcontrol_locked(card, "None");
-	up_read(&card->snd_card->controls_rwsem);
-	KUNIT_EXPECT_NULL(test, kc);
-
-	down_read(&card->snd_card->controls_rwsem);
-	kc = snd_soc_card_get_kcontrol_locked(card, "Left None");
-	up_read(&card->snd_card->controls_rwsem);
-	KUNIT_EXPECT_NULL(test, kc);
-
-	down_read(&card->snd_card->controls_rwsem);
-	kc = snd_soc_card_get_kcontrol_locked(card, "Left");
-	up_read(&card->snd_card->controls_rwsem);
-	KUNIT_EXPECT_NULL(test, kc);
-
-	down_read(&card->snd_card->controls_rwsem);
-	kc = snd_soc_card_get_kcontrol_locked(card, NULL);
-	up_read(&card->snd_card->controls_rwsem);
-	KUNIT_EXPECT_NULL(test, kc);
-}
-
 static int soc_card_test_case_init(struct kunit *test)
 {
 	struct soc_card_test_priv *priv;
@@ -169,7 +113,6 @@ static void soc_card_test_case_exit(struct kunit *test)
 
 static struct kunit_case soc_card_test_cases[] = {
 	KUNIT_CASE(test_snd_soc_card_get_kcontrol),
-	KUNIT_CASE(test_snd_soc_card_get_kcontrol_locked),
 	{}
 };
 
diff --git a/sound/soc/soc-card.c b/sound/soc/soc-card.c
index 0a3104d4ad23..8e9546fe7428 100644
--- a/sound/soc/soc-card.c
+++ b/sound/soc/soc-card.c
@@ -29,16 +29,6 @@ static inline int _soc_card_ret(struct snd_soc_card *card,
 	return ret;
 }
 
-struct snd_kcontrol *snd_soc_card_get_kcontrol_locked(struct snd_soc_card *soc_card,
-						      const char *name)
-{
-	if (unlikely(!name))
-		return NULL;
-
-	return snd_ctl_find_id_mixer_locked(soc_card->snd_card, name);
-}
-EXPORT_SYMBOL_GPL(snd_soc_card_get_kcontrol_locked);
-
 struct snd_kcontrol *snd_soc_card_get_kcontrol(struct snd_soc_card *soc_card,
 					       const char *name)
 {
-- 
2.43.0