ALSA: firewire: Use managed buffer allocation

Clean up the drivers with the new managed buffer allocation API.
The superfluous snd_pcm_lib_malloc_pages() and
snd_pcm_lib_free_pages() calls are dropped.

Acked-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20191209192422.23902-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/firewire/bebob/bebob_pcm.c

@@ -212,11 +212,7 @@ static int pcm_hw_params(struct snd_pcm_substream *substream,
 			 struct snd_pcm_hw_params *hw_params)
 {
 	struct snd_bebob *bebob = substream->private_data;
-	int err;
-
-	err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
-	if (err < 0)
-		return err;
+	int err = 0;
 
 	if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN) {
 		unsigned int rate = params_rate(hw_params);
@@ -247,7 +243,7 @@ static int pcm_hw_free(struct snd_pcm_substream *substream)
 
 	mutex_unlock(&bebob->mutex);
 
-	return snd_pcm_lib_free_pages(substream);
+	return 0;
 }
 
 static int
@@ -377,8 +373,7 @@ int snd_bebob_create_pcm_devices(struct snd_bebob *bebob)
 		 "%s PCM", bebob->card->shortname);
 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &playback_ops);
 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &capture_ops);
-	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_VMALLOC,
-					      NULL, 0, 0);
+	snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_VMALLOC, NULL, 0, 0);
 end:
 	return err;
 }

sound/firewire/dice/dice-pcm.c

@@ -264,11 +264,7 @@ static int pcm_hw_params(struct snd_pcm_substream *substream,
 			 struct snd_pcm_hw_params *hw_params)
 {
 	struct snd_dice *dice = substream->private_data;
-	int err;
-
-	err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
-	if (err < 0)
-		return err;
+	int err = 0;
 
 	if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN) {
 		unsigned int rate = params_rate(hw_params);
@@ -304,7 +300,7 @@ static int pcm_hw_free(struct snd_pcm_substream *substream)
 
 	mutex_unlock(&dice->mutex);
 
-	return snd_pcm_lib_free_pages(substream);
+	return 0;
 }
 
 static int capture_prepare(struct snd_pcm_substream *substream)
@@ -457,8 +453,7 @@ int snd_dice_create_pcm(struct snd_dice *dice)
 			snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
 					&playback_ops);
 
-		snd_pcm_lib_preallocate_pages_for_all(pcm,
-						      SNDRV_DMA_TYPE_VMALLOC,
+		snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_VMALLOC,
 					       NULL, 0, 0);
 	}
 

sound/firewire/digi00x/digi00x-pcm.c

@@ -188,11 +188,7 @@ static int pcm_hw_params(struct snd_pcm_substream *substream,
 			 struct snd_pcm_hw_params *hw_params)
 {
 	struct snd_dg00x *dg00x = substream->private_data;
-	int err;
-
-	err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
-	if (err < 0)
-		return err;
+	int err = 0;
 
 	if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN) {
 		unsigned int rate = params_rate(hw_params);
@@ -223,7 +219,7 @@ static int pcm_hw_free(struct snd_pcm_substream *substream)
 
 	mutex_unlock(&dg00x->mutex);
 
-	return snd_pcm_lib_free_pages(substream);
+	return 0;
 }
 
 static int pcm_capture_prepare(struct snd_pcm_substream *substream)
@@ -360,8 +356,7 @@ int snd_dg00x_create_pcm_devices(struct snd_dg00x *dg00x)
 		 "%s PCM", dg00x->card->shortname);
 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &playback_ops);
 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &capture_ops);
-	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_VMALLOC,
-					      NULL, 0, 0);
+	snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_VMALLOC, NULL, 0, 0);
 
 	return 0;
 }

sound/firewire/fireface/ff-pcm.c

@@ -228,11 +228,7 @@ static int pcm_hw_params(struct snd_pcm_substream *substream,
 			 struct snd_pcm_hw_params *hw_params)
 {
 	struct snd_ff *ff = substream->private_data;
-	int err;
-
-	err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
-	if (err < 0)
-		return err;
+	int err = 0;
 
 	if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN) {
 		unsigned int rate = params_rate(hw_params);
@@ -263,7 +259,7 @@ static int pcm_hw_free(struct snd_pcm_substream *substream)
 
 	mutex_unlock(&ff->mutex);
 
-	return snd_pcm_lib_free_pages(substream);
+	return 0;
 }
 
 static int pcm_capture_prepare(struct snd_pcm_substream *substream)
@@ -400,8 +396,7 @@ int snd_ff_create_pcm_devices(struct snd_ff *ff)
 		 "%s PCM", ff->card->shortname);
 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &pcm_playback_ops);
 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &pcm_capture_ops);
-	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_VMALLOC,
-					      NULL, 0, 0);
+	snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_VMALLOC, NULL, 0, 0);
 
 	return 0;
 }

sound/firewire/fireworks/fireworks_pcm.c

@@ -248,11 +248,7 @@ static int pcm_hw_params(struct snd_pcm_substream *substream,
 				 struct snd_pcm_hw_params *hw_params)
 {
 	struct snd_efw *efw = substream->private_data;
-	int err;
-
-	err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
-	if (err < 0)
-		return err;
+	int err = 0;
 
 	if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN) {
 		unsigned int rate = params_rate(hw_params);
@@ -283,7 +279,7 @@ static int pcm_hw_free(struct snd_pcm_substream *substream)
 
 	mutex_unlock(&efw->mutex);
 
-	return snd_pcm_lib_free_pages(substream);
+	return 0;
 }
 
 static int pcm_capture_prepare(struct snd_pcm_substream *substream)
@@ -406,8 +402,7 @@ int snd_efw_create_pcm_devices(struct snd_efw *efw)
 	snprintf(pcm->name, sizeof(pcm->name), "%s PCM", efw->card->shortname);
 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &playback_ops);
 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &capture_ops);
-	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_VMALLOC,
-					      NULL, 0, 0);
+	snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_VMALLOC, NULL, 0, 0);
 end:
 	return err;
 }

sound/firewire/isight.c

@@ -286,11 +286,6 @@ static int isight_hw_params(struct snd_pcm_substream *substream,
 			    struct snd_pcm_hw_params *hw_params)
 {
 	struct isight *isight = substream->private_data;
-	int err;
-
-	err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
-	if (err < 0)
-		return err;
 
 	WRITE_ONCE(isight->pcm_active, true);
 
@@ -336,7 +331,7 @@ static int isight_hw_free(struct snd_pcm_substream *substream)
 	isight_stop_streaming(isight);
 	mutex_unlock(&isight->mutex);
 
-	return snd_pcm_lib_free_pages(substream);
+	return 0;
 }
 
 static int isight_start_streaming(struct isight *isight)
@@ -463,8 +458,7 @@ static int isight_create_pcm(struct isight *isight)
 	strcpy(pcm->name, "iSight");
 	isight->pcm = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream;
 	isight->pcm->ops = &ops;
-	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_VMALLOC,
-					      NULL, 0, 0);
+	snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_VMALLOC, NULL, 0, 0);
 
 	return 0;
 }

sound/firewire/motu/motu-pcm.c

@@ -212,11 +212,7 @@ static int pcm_hw_params(struct snd_pcm_substream *substream,
 			 struct snd_pcm_hw_params *hw_params)
 {
 	struct snd_motu *motu = substream->private_data;
-	int err;
-
-	err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
-	if (err < 0)
-		return err;
+	int err = 0;
 
 	if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN) {
 		unsigned int rate = params_rate(hw_params);
@@ -247,7 +243,7 @@ static int pcm_hw_free(struct snd_pcm_substream *substream)
 
 	mutex_unlock(&motu->mutex);
 
-	return snd_pcm_lib_free_pages(substream);
+	return 0;
 }
 
 static int capture_prepare(struct snd_pcm_substream *substream)
@@ -374,8 +370,7 @@ int snd_motu_create_pcm_devices(struct snd_motu *motu)
 
 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &capture_ops);
 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &playback_ops);
-	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_VMALLOC,
-					      NULL, 0, 0);
+	snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_VMALLOC, NULL, 0, 0);
 
 	return 0;
 }

sound/firewire/oxfw/oxfw-pcm.c

@@ -237,11 +237,7 @@ static int pcm_capture_hw_params(struct snd_pcm_substream *substream,
 				 struct snd_pcm_hw_params *hw_params)
 {
 	struct snd_oxfw *oxfw = substream->private_data;
-	int err;
-
-	err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
-	if (err < 0)
-		return err;
+	int err = 0;
 
 	if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN) {
 		unsigned int rate = params_rate(hw_params);
@@ -264,11 +260,7 @@ static int pcm_playback_hw_params(struct snd_pcm_substream *substream,
 				  struct snd_pcm_hw_params *hw_params)
 {
 	struct snd_oxfw *oxfw = substream->private_data;
-	int err;
-
-	err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
-	if (err < 0)
-		return err;
+	int err = 0;
 
 	if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN) {
 		unsigned int rate = params_rate(hw_params);
@@ -301,7 +293,7 @@ static int pcm_capture_hw_free(struct snd_pcm_substream *substream)
 
 	mutex_unlock(&oxfw->mutex);
 
-	return snd_pcm_lib_free_pages(substream);
+	return 0;
 }
 static int pcm_playback_hw_free(struct snd_pcm_substream *substream)
 {
@@ -316,7 +308,7 @@ static int pcm_playback_hw_free(struct snd_pcm_substream *substream)
 
 	mutex_unlock(&oxfw->mutex);
 
-	return snd_pcm_lib_free_pages(substream);
+	return 0;
 }
 
 static int pcm_capture_prepare(struct snd_pcm_substream *substream)
@@ -454,8 +446,7 @@ int snd_oxfw_create_pcm(struct snd_oxfw *oxfw)
 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &playback_ops);
 	if (cap > 0)
 		snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &capture_ops);
-	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_VMALLOC,
-					      NULL, 0, 0);
+	snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_VMALLOC, NULL, 0, 0);
 
 	return 0;
 }

sound/firewire/tascam/tascam-pcm.c

@@ -117,11 +117,7 @@ static int pcm_hw_params(struct snd_pcm_substream *substream,
 			 struct snd_pcm_hw_params *hw_params)
 {
 	struct snd_tscm *tscm = substream->private_data;
-	int err;
-
-	err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
-	if (err < 0)
-		return err;
+	int err = 0;
 
 	if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN) {
 		unsigned int rate = params_rate(hw_params);
@@ -152,7 +148,7 @@ static int pcm_hw_free(struct snd_pcm_substream *substream)
 
 	mutex_unlock(&tscm->mutex);
 
-	return snd_pcm_lib_free_pages(substream);
+	return 0;
 }
 
 static int pcm_capture_prepare(struct snd_pcm_substream *substream)
@@ -289,8 +285,7 @@ int snd_tscm_create_pcm_devices(struct snd_tscm *tscm)
 		 "%s PCM", tscm->card->shortname);
 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &playback_ops);
 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &capture_ops);
-	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_VMALLOC,
-					      NULL, 0, 0);
+	snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_VMALLOC, NULL, 0, 0);
 
 	return 0;
 }