ASoC: add for_each_dpcm_be() macro

To be more readable code, this patch adds
new for_each_dpcm_be() macro, and replace existing code to it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

5 files changed, 28 insertions, 30 deletions

diff --git a/sound/soc/fsl/fsl_asrc_dma.c b/sound/soc/fsl/fsl_asrc_dma.c
index 1033ac6631b0..01052a0808b0 100644
--- a/sound/soc/fsl/fsl_asrc_dma.c
+++ b/sound/soc/fsl/fsl_asrc_dma.c
@@ -151,7 +151,7 @@ static int fsl_asrc_dma_hw_params(struct snd_pcm_substream *substream,
 	int ret;
 
 	/* Fetch the Back-End dma_data from DPCM */
-	list_for_each_entry(dpcm, &rtd->dpcm[stream].be_clients, list_be) {
+	for_each_dpcm_be(rtd, stream, dpcm) {
 		struct snd_soc_pcm_runtime *be = dpcm->be;
 		struct snd_pcm_substream *substream_be;
 		struct snd_soc_dai *dai = be->cpu_dai;
diff --git a/sound/soc/sh/rcar/ctu.c b/sound/soc/sh/rcar/ctu.c
index 6a55aa753003..ad702377a6c3 100644
--- a/sound/soc/sh/rcar/ctu.c
+++ b/sound/soc/sh/rcar/ctu.c
@@ -258,7 +258,7 @@ static int rsnd_ctu_hw_params(struct rsnd_mod *mod,
 		struct snd_pcm_hw_params *be_params;
 		int stream = substream->stream;
 
-		list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) {
+		for_each_dpcm_be(fe, stream, dpcm) {
 			be_params = &dpcm->hw_params;
 			if (params_channels(fe_params) != params_channels(be_params))
 				ctu->channels = params_channels(be_params);
diff --git a/sound/soc/sh/rcar/src.c b/sound/soc/sh/rcar/src.c
index beccfbac7581..cd38a43b976f 100644
--- a/sound/soc/sh/rcar/src.c
+++ b/sound/soc/sh/rcar/src.c
@@ -158,7 +158,7 @@ static int rsnd_src_hw_params(struct rsnd_mod *mod,
 		struct snd_soc_dpcm *dpcm;
 		struct snd_pcm_hw_params *be_params;
 
-		list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) {
+		for_each_dpcm_be(fe, stream, dpcm) {
 			be_params = &dpcm->hw_params;
 
 			if (params_rate(fe_params) != params_rate(be_params))
diff --git a/sound/soc/soc-compress.c b/sound/soc/soc-compress.c
index 409d082e80d1..699397a09167 100644
--- a/sound/soc/soc-compress.c
+++ b/sound/soc/soc-compress.c
@@ -157,7 +157,7 @@ static int soc_compr_open_fe(struct snd_compr_stream *cstream)
 	ret = dpcm_be_dai_startup(fe, stream);
 	if (ret < 0) {
 		/* clean up all links */
-		list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be)
+		for_each_dpcm_be(fe, stream, dpcm)
 			dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE;
 
 		dpcm_be_disconnect(fe, stream);
@@ -321,7 +321,7 @@ static int soc_compr_free_fe(struct snd_compr_stream *cstream)
 	ret = dpcm_be_dai_shutdown(fe, stream);
 
 	/* mark FE's links ready to prune */
-	list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be)
+	for_each_dpcm_be(fe, stream, dpcm)
 		dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE;
 
 	dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_STOP);
diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index e7916630e6fa..03f36e534050 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -174,7 +174,7 @@ int dpcm_dapm_stream_event(struct snd_soc_pcm_runtime *fe, int dir,
 {
 	struct snd_soc_dpcm *dpcm;
 
-	list_for_each_entry(dpcm, &fe->dpcm[dir].be_clients, list_be) {
+	for_each_dpcm_be(fe, dir, dpcm) {
 
 		struct snd_soc_pcm_runtime *be = dpcm->be;
 
@@ -1211,7 +1211,7 @@ static int dpcm_be_connect(struct snd_soc_pcm_runtime *fe,
 	struct snd_soc_dpcm *dpcm;
 
 	/* only add new dpcms */
-	list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) {
+	for_each_dpcm_be(fe, stream, dpcm) {
 		if (dpcm->be == be && dpcm->fe == fe)
 			return 0;
 	}
@@ -1272,7 +1272,7 @@ void dpcm_be_disconnect(struct snd_soc_pcm_runtime *fe, int stream)
 {
 	struct snd_soc_dpcm *dpcm, *d;
 
-	list_for_each_entry_safe(dpcm, d, &fe->dpcm[stream].be_clients, list_be) {
+	for_each_dpcm_be_safe(fe, stream, dpcm, d) {
 		dev_dbg(fe->dev, "ASoC: BE %s disconnect check for %s\n",
 				stream ? "capture" : "playback",
 				dpcm->be->dai_link->name);
@@ -1438,7 +1438,7 @@ static int dpcm_prune_paths(struct snd_soc_pcm_runtime *fe, int stream,
 	int prune = 0;
 
 	/* Destroy any old FE <--> BE connections */
-	list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) {
+	for_each_dpcm_be(fe, stream, dpcm) {
 		unsigned int i;
 
 		/* is there a valid CPU DAI widget for this BE */
@@ -1544,7 +1544,7 @@ void dpcm_clear_pending_state(struct snd_soc_pcm_runtime *fe, int stream)
 {
 	struct snd_soc_dpcm *dpcm;
 
-	list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be)
+	for_each_dpcm_be(fe, stream, dpcm)
 		dpcm->be->dpcm[stream].runtime_update =
 						SND_SOC_DPCM_UPDATE_NO;
 }
@@ -1555,7 +1555,7 @@ static void dpcm_be_dai_startup_unwind(struct snd_soc_pcm_runtime *fe,
 	struct snd_soc_dpcm *dpcm;
 
 	/* disable any enabled and non active backends */
-	list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) {
+	for_each_dpcm_be(fe, stream, dpcm) {
 
 		struct snd_soc_pcm_runtime *be = dpcm->be;
 		struct snd_pcm_substream *be_substream =
@@ -1584,7 +1584,7 @@ int dpcm_be_dai_startup(struct snd_soc_pcm_runtime *fe, int stream)
 	int err, count = 0;
 
 	/* only startup BE DAIs that are either sinks or sources to this FE DAI */
-	list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) {
+	for_each_dpcm_be(fe, stream, dpcm) {
 
 		struct snd_soc_pcm_runtime *be = dpcm->be;
 		struct snd_pcm_substream *be_substream =
@@ -1638,7 +1638,7 @@ int dpcm_be_dai_startup(struct snd_soc_pcm_runtime *fe, int stream)
 
 unwind:
 	/* disable any enabled and non active backends */
-	list_for_each_entry_continue_reverse(dpcm, &fe->dpcm[stream].be_clients, list_be) {
+	for_each_dpcm_be_rollback(fe, stream, dpcm) {
 		struct snd_soc_pcm_runtime *be = dpcm->be;
 		struct snd_pcm_substream *be_substream =
 			snd_soc_dpcm_get_substream(be, stream);
@@ -1695,7 +1695,7 @@ static void dpcm_runtime_merge_format(struct snd_pcm_substream *substream,
 	 * if FE want to use it (= dpcm_merged_format)
 	 */
 
-	list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) {
+	for_each_dpcm_be(fe, stream, dpcm) {
 		struct snd_soc_pcm_runtime *be = dpcm->be;
 		struct snd_soc_dai_driver *codec_dai_drv;
 		struct snd_soc_pcm_stream *codec_stream;
@@ -1736,7 +1736,7 @@ static void dpcm_runtime_merge_chan(struct snd_pcm_substream *substream,
 	 * if FE want to use it (= dpcm_merged_chan)
 	 */
 
-	list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) {
+	for_each_dpcm_be(fe, stream, dpcm) {
 		struct snd_soc_pcm_runtime *be = dpcm->be;
 		struct snd_soc_dai_driver *cpu_dai_drv =  be->cpu_dai->driver;
 		struct snd_soc_dai_driver *codec_dai_drv;
@@ -1788,7 +1788,7 @@ static void dpcm_runtime_merge_rate(struct snd_pcm_substream *substream,
 	 * if FE want to use it (= dpcm_merged_chan)
 	 */
 
-	list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) {
+	for_each_dpcm_be(fe, stream, dpcm) {
 		struct snd_soc_pcm_runtime *be = dpcm->be;
 		struct snd_soc_dai_driver *cpu_dai_drv =  be->cpu_dai->driver;
 		struct snd_soc_dai_driver *codec_dai_drv;
@@ -1891,7 +1891,7 @@ static int dpcm_apply_symmetry(struct snd_pcm_substream *fe_substream,
 	}
 
 	/* apply symmetry for BE */
-	list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) {
+	for_each_dpcm_be(fe, stream, dpcm) {
 		struct snd_soc_pcm_runtime *be = dpcm->be;
 		struct snd_pcm_substream *be_substream =
 			snd_soc_dpcm_get_substream(be, stream);
@@ -1976,7 +1976,7 @@ int dpcm_be_dai_shutdown(struct snd_soc_pcm_runtime *fe, int stream)
 	struct snd_soc_dpcm *dpcm;
 
 	/* only shutdown BEs that are either sinks or sources to this FE DAI */
-	list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) {
+	for_each_dpcm_be(fe, stream, dpcm) {
 
 		struct snd_soc_pcm_runtime *be = dpcm->be;
 		struct snd_pcm_substream *be_substream =
@@ -2040,7 +2040,7 @@ int dpcm_be_dai_hw_free(struct snd_soc_pcm_runtime *fe, int stream)
 
 	/* only hw_params backends that are either sinks or sources
 	 * to this frontend DAI */
-	list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) {
+	for_each_dpcm_be(fe, stream, dpcm) {
 
 		struct snd_soc_pcm_runtime *be = dpcm->be;
 		struct snd_pcm_substream *be_substream =
@@ -2109,7 +2109,7 @@ int dpcm_be_dai_hw_params(struct snd_soc_pcm_runtime *fe, int stream)
 	struct snd_soc_dpcm *dpcm;
 	int ret;
 
-	list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) {
+	for_each_dpcm_be(fe, stream, dpcm) {
 
 		struct snd_soc_pcm_runtime *be = dpcm->be;
 		struct snd_pcm_substream *be_substream =
@@ -2160,7 +2160,7 @@ int dpcm_be_dai_hw_params(struct snd_soc_pcm_runtime *fe, int stream)
 
 unwind:
 	/* disable any enabled and non active backends */
-	list_for_each_entry_continue_reverse(dpcm, &fe->dpcm[stream].be_clients, list_be) {
+	for_each_dpcm_be_rollback(fe, stream, dpcm) {
 		struct snd_soc_pcm_runtime *be = dpcm->be;
 		struct snd_pcm_substream *be_substream =
 			snd_soc_dpcm_get_substream(be, stream);
@@ -2240,7 +2240,7 @@ int dpcm_be_dai_trigger(struct snd_soc_pcm_runtime *fe, int stream,
 	struct snd_soc_dpcm *dpcm;
 	int ret = 0;
 
-	list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) {
+	for_each_dpcm_be(fe, stream, dpcm) {
 
 		struct snd_soc_pcm_runtime *be = dpcm->be;
 		struct snd_pcm_substream *be_substream =
@@ -2426,7 +2426,7 @@ int dpcm_be_dai_prepare(struct snd_soc_pcm_runtime *fe, int stream)
 	struct snd_soc_dpcm *dpcm;
 	int ret = 0;
 
-	list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) {
+	for_each_dpcm_be(fe, stream, dpcm) {
 
 		struct snd_soc_pcm_runtime *be = dpcm->be;
 		struct snd_pcm_substream *be_substream =
@@ -2636,7 +2636,7 @@ close:
 	dpcm_be_dai_shutdown(fe, stream);
 disconnect:
 	/* disconnect any non started BEs */
-	list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) {
+	for_each_dpcm_be(fe, stream, dpcm) {
 		struct snd_soc_pcm_runtime *be = dpcm->be;
 		if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_START)
 				dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE;
@@ -2781,11 +2781,9 @@ out:
 int soc_dpcm_be_digital_mute(struct snd_soc_pcm_runtime *fe, int mute)
 {
 	struct snd_soc_dpcm *dpcm;
-	struct list_head *clients =
-		&fe->dpcm[SNDRV_PCM_STREAM_PLAYBACK].be_clients;
 	struct snd_soc_dai *dai;
 
-	list_for_each_entry(dpcm, clients, list_be) {
+	for_each_dpcm_be(fe, SNDRV_PCM_STREAM_PLAYBACK, dpcm) {
 
 		struct snd_soc_pcm_runtime *be = dpcm->be;
 		int i;
@@ -2834,7 +2832,7 @@ static int dpcm_fe_dai_open(struct snd_pcm_substream *fe_substream)
 	ret = dpcm_fe_dai_startup(fe_substream);
 	if (ret < 0) {
 		/* clean up all links */
-		list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be)
+		for_each_dpcm_be(fe, stream, dpcm)
 			dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE;
 
 		dpcm_be_disconnect(fe, stream);
@@ -2857,7 +2855,7 @@ static int dpcm_fe_dai_close(struct snd_pcm_substream *fe_substream)
 	ret = dpcm_fe_dai_shutdown(fe_substream);
 
 	/* mark FE's links ready to prune */
-	list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be)
+	for_each_dpcm_be(fe, stream, dpcm)
 		dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE;
 
 	dpcm_be_disconnect(fe, stream);
@@ -3326,7 +3324,7 @@ static ssize_t dpcm_show_state(struct snd_soc_pcm_runtime *fe,
 		goto out;
 	}
 
-	list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) {
+	for_each_dpcm_be(fe, stream, dpcm) {
 		struct snd_soc_pcm_runtime *be = dpcm->be;
 		params = &dpcm->hw_params;