LKML Archive on lore.kernel.org
 help / color / Atom feed
From: Takashi Iwai <tiwai@suse.de>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Eric Anholt <eric@anholt.net>,
	Stefan Wahren <stefan.wahren@i2se.com>,
	linux-rpi-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH 15/29] staging: bcm2835-audio: Drop debug messages in bcm2835-pcm.c
Date: Tue,  4 Sep 2018 17:58:44 +0200
Message-ID: <20180904155858.8001-16-tiwai@suse.de> (raw)
In-Reply-To: <20180904155858.8001-1-tiwai@suse.de>

These debug messages worsen the code readability a lot while they give
little debuggability (which we already have via tracing, in anyway).

Let's clean them up.  This allows us to reduce the
snd_bcm2835_pcm_lib_ioctl() function to be a direct call of the
snd_pcm_lib_ioctl callback (like most other drivers do), too.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 .../vc04_services/bcm2835-audio/bcm2835-pcm.c | 51 +++----------------
 1 file changed, 7 insertions(+), 44 deletions(-)

diff --git a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c
index 41bcaff6358b..1f9c940f1cc3 100644
--- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c
+++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c
@@ -44,9 +44,7 @@ static const struct snd_pcm_hardware snd_bcm2835_playback_spdif_hw = {
 
 static void snd_bcm2835_playback_free(struct snd_pcm_runtime *runtime)
 {
-	audio_info("Freeing up alsa stream here ..\n");
 	kfree(runtime->private_data);
-	runtime->private_data = NULL;
 }
 
 void bcm2835_playback_fifo(struct bcm2835_alsa_stream *alsa_stream)
@@ -99,7 +97,6 @@ static int snd_bcm2835_playback_open_generic(
 	int err;
 
 	mutex_lock(&chip->audio_mutex);
-	audio_info("Alsa open (%d)\n", substream->number);
 	idx = substream->number;
 
 	if (spdif && chip->opened) {
@@ -182,8 +179,6 @@ static int snd_bcm2835_playback_close(struct snd_pcm_substream *substream)
 	runtime = substream->runtime;
 	alsa_stream = runtime->private_data;
 
-	audio_info("Alsa close\n");
-
 	alsa_stream->period_size = 0;
 	alsa_stream->buffer_size = 0;
 
@@ -251,10 +246,6 @@ static int snd_bcm2835_pcm_prepare(struct snd_pcm_substream *substream)
 	alsa_stream->pos = 0;
 	alsa_stream->draining = false;
 
-	audio_debug("buffer_size=%d, period_size=%d pos=%d frame_bits=%d\n",
-		alsa_stream->buffer_size, alsa_stream->period_size,
-		alsa_stream->pos, runtime->frame_bits);
-
  out:
 	mutex_unlock(&chip->audio_mutex);
 	return err;
@@ -266,12 +257,8 @@ static void snd_bcm2835_pcm_transfer(struct snd_pcm_substream *substream,
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	struct bcm2835_alsa_stream *alsa_stream = runtime->private_data;
 	void *src = (void *) (substream->runtime->dma_area + rec->sw_data);
-	int err;
-
-	err = bcm2835_audio_write(alsa_stream, bytes, src);
-	if (err)
-		audio_error(" Failed to transfer to alsa device (%d)\n", err);
 
+	bcm2835_audio_write(alsa_stream, bytes, src);
 }
 
 static int snd_bcm2835_pcm_ack(struct snd_pcm_substream *substream)
@@ -289,27 +276,18 @@ static int snd_bcm2835_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
 {
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	struct bcm2835_alsa_stream *alsa_stream = runtime->private_data;
-	int err = 0;
 
 	switch (cmd) {
 	case SNDRV_PCM_TRIGGER_START:
-		err = bcm2835_audio_start(alsa_stream);
-		if (err)
-			audio_error(" Failed to START alsa device (%d)\n", err);
-		break;
+		return bcm2835_audio_start(alsa_stream);
 	case SNDRV_PCM_TRIGGER_DRAIN:
 		alsa_stream->draining = true;
-		break;
+		return 0;
 	case SNDRV_PCM_TRIGGER_STOP:
-		err = bcm2835_audio_stop(alsa_stream);
-		if (err)
-			audio_error(" Failed to STOP alsa device (%d)\n", err);
-		break;
+		return bcm2835_audio_stop(alsa_stream);
 	default:
-		err = -EINVAL;
+		return -EINVAL;
 	}
-
-	return err;
 }
 
 /* pointer callback */
@@ -319,31 +297,16 @@ snd_bcm2835_pcm_pointer(struct snd_pcm_substream *substream)
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	struct bcm2835_alsa_stream *alsa_stream = runtime->private_data;
 
-	audio_debug("pcm_pointer... (%d) hwptr=%d appl=%d pos=%d\n", 0,
-		frames_to_bytes(runtime, runtime->status->hw_ptr),
-		frames_to_bytes(runtime, runtime->control->appl_ptr),
-		alsa_stream->pos);
-
 	return snd_pcm_indirect_playback_pointer(substream,
 		&alsa_stream->pcm_indirect,
 		alsa_stream->pos);
 }
 
-static int snd_bcm2835_pcm_lib_ioctl(struct snd_pcm_substream *substream,
-	unsigned int cmd, void *arg)
-{
-	int ret = snd_pcm_lib_ioctl(substream, cmd, arg);
-
-	audio_info(" .. substream=%p, cmd=%d, arg=%p (%x) ret=%d\n", substream,
-		cmd, arg, arg ? *(unsigned int *)arg : 0, ret);
-	return ret;
-}
-
 /* operators */
 static const struct snd_pcm_ops snd_bcm2835_playback_ops = {
 	.open = snd_bcm2835_playback_open,
 	.close = snd_bcm2835_playback_close,
-	.ioctl = snd_bcm2835_pcm_lib_ioctl,
+	.ioctl = snd_pcm_lib_ioctl,
 	.hw_params = snd_bcm2835_pcm_hw_params,
 	.hw_free = snd_bcm2835_pcm_hw_free,
 	.prepare = snd_bcm2835_pcm_prepare,
@@ -355,7 +318,7 @@ static const struct snd_pcm_ops snd_bcm2835_playback_ops = {
 static const struct snd_pcm_ops snd_bcm2835_playback_spdif_ops = {
 	.open = snd_bcm2835_playback_spdif_open,
 	.close = snd_bcm2835_playback_close,
-	.ioctl = snd_bcm2835_pcm_lib_ioctl,
+	.ioctl = snd_pcm_lib_ioctl,
 	.hw_params = snd_bcm2835_pcm_hw_params,
 	.hw_free = snd_bcm2835_pcm_hw_free,
 	.prepare = snd_bcm2835_pcm_prepare,
-- 
2.18.0


  parent reply index

Thread overview: 53+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-09-04 15:58 [PATCH 00/29] staging: bcm2835-audio: Cleanups and fixes Takashi Iwai
2018-09-04 15:58 ` [PATCH 01/29] staging: bcm2835-audio: Clean up mutex locks Takashi Iwai
2018-09-04 15:58 ` [PATCH 02/29] staging: bcm2835-audio: Remove redundant spdif stream ctls Takashi Iwai
2018-09-04 15:58 ` [PATCH 03/29] staging: bcm2835-audio: Clean up include files in bcm2835-ctl.c Takashi Iwai
2018-09-08 13:25   ` Stefan Wahren
2018-09-08 16:21     ` Takashi Iwai
2018-09-04 15:58 ` [PATCH 04/29] staging: bcm2835-audio: Remove redundant substream mask checks Takashi Iwai
2018-09-04 15:58 ` [PATCH 05/29] staging: bcm2835-audio: Fix mute controls, volume handling cleanup Takashi Iwai
2018-09-04 15:58 ` [PATCH 06/29] staging: bcm2835-audio: Remove redundant function calls Takashi Iwai
2018-09-04 15:58 ` [PATCH 07/29] staging: bcm2835-audio: Remove superfluous open flag Takashi Iwai
2018-09-04 15:58 ` [PATCH 08/29] staging: bcm2835-audio: Drop useless running flag and check Takashi Iwai
2018-09-04 15:58 ` [PATCH 09/29] staging: bcm2835-audio: Fix incorrect draining handling Takashi Iwai
2018-09-04 15:58 ` [PATCH 10/29] staging: bcm2835-audio: Kill unused spinlock Takashi Iwai
2018-09-04 15:58 ` [PATCH 11/29] staging: bcm2835-audio: Use PCM runtime values instead Takashi Iwai
2018-09-04 15:58 ` [PATCH 12/29] staging: bcm2835-audio: Drop unnecessary pcm indirect setup Takashi Iwai
2018-09-04 15:58 ` [PATCH 13/29] staging: bcm2835-audio: Drop useless NULL check Takashi Iwai
2018-09-04 15:58 ` [PATCH 14/29] staging: bcm2835-audio: Propagate parameter setup error Takashi Iwai
2018-09-04 15:58 ` Takashi Iwai [this message]
2018-09-04 15:58 ` [PATCH 16/29] staging: bcm2835-audio: Drop superfluous mutex lock during prepare Takashi Iwai
2018-09-08 13:40   ` Stefan Wahren
2018-09-08 16:12     ` Takashi Iwai
2018-09-04 15:58 ` [PATCH 17/29] staging: bcm2835-audio: Add 10ms period constraint Takashi Iwai
2018-09-19  9:42   ` Stefan Wahren
2018-09-19  9:52     ` Takashi Iwai
2018-09-19 12:41       ` Stefan Wahren
2018-09-19 12:47         ` Mike Brady
2018-09-19 18:39         ` Takashi Iwai
2018-10-09 13:18           ` [PATCH 17/29] staging: bcm2835-audio: Add 10ms period constraint [Resend in plain text...] Mike Brady
2018-10-09 13:44             ` Takashi Iwai
2018-10-09 15:28               ` Mike Brady
2018-10-09 15:32                 ` Takashi Iwai
2018-10-11 12:53                 ` Mike Brady
2018-10-11 14:07                   ` Stefan Wahren
2018-10-13 15:00                   ` Mike Brady
2018-10-13 15:45                     ` Takashi Iwai
2018-09-04 15:58 ` [PATCH 18/29] staging: bcm2835-audio: Make single vchi handle Takashi Iwai
2018-09-04 15:58 ` [PATCH 19/29] staging: bcm2835-audio: Code refactoring of vchiq accessor codes Takashi Iwai
2018-09-04 15:58 ` [PATCH 20/29] staging: bcm2835-audio: Operate non-atomic PCM ops Takashi Iwai
2018-09-04 15:58 ` [PATCH 21/29] staging: bcm2835-audio: Use card->private_data Takashi Iwai
2018-09-04 15:58 ` [PATCH 22/29] staging: bcm2835-audio: Use standard error print helpers Takashi Iwai
2018-09-04 15:58 ` [PATCH 23/29] staging: bcm2835-audio: Remove unnecessary header file includes Takashi Iwai
2018-09-04 15:58 ` [PATCH 24/29] staging: bcm2835-audio: Move module parameter description Takashi Iwai
2018-09-04 15:58 ` [PATCH 25/29] staging: bcm2835-audio: Use coherent device buffers Takashi Iwai
2018-09-04 15:58 ` [PATCH 26/29] staging: bcm2835-audio: Set SNDRV_PCM_INFO_SYNC_APPLPTR Takashi Iwai
2018-09-04 15:58 ` [PATCH 27/29] staging: bcm2835-audio: Simplify PCM creation helpers Takashi Iwai
2018-09-04 15:58 ` [PATCH 28/29] staging: bcm2835-audio: Simplify kctl " Takashi Iwai
2018-09-04 15:58 ` [PATCH 29/29] staging: bcm2835-audio: Simplify card object management Takashi Iwai
2018-09-08 13:18 ` [PATCH 00/29] staging: bcm2835-audio: Cleanups and fixes Stefan Wahren
2018-09-08 16:21   ` Takashi Iwai
2018-09-08 17:00     ` Stefan Wahren
2018-09-08 17:16       ` Takashi Iwai
2018-09-10  9:12     ` Greg Kroah-Hartman
2018-09-10  9:16       ` Takashi Iwai

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20180904155858.8001-16-tiwai@suse.de \
    --to=tiwai@suse.de \
    --cc=eric@anholt.net \
    --cc=gregkh@linuxfoundation.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-rpi-kernel@lists.infradead.org \
    --cc=stefan.wahren@i2se.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

LKML Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/lkml/0 lkml/git/0.git
	git clone --mirror https://lore.kernel.org/lkml/1 lkml/git/1.git
	git clone --mirror https://lore.kernel.org/lkml/2 lkml/git/2.git
	git clone --mirror https://lore.kernel.org/lkml/3 lkml/git/3.git
	git clone --mirror https://lore.kernel.org/lkml/4 lkml/git/4.git
	git clone --mirror https://lore.kernel.org/lkml/5 lkml/git/5.git
	git clone --mirror https://lore.kernel.org/lkml/6 lkml/git/6.git
	git clone --mirror https://lore.kernel.org/lkml/7 lkml/git/7.git
	git clone --mirror https://lore.kernel.org/lkml/8 lkml/git/8.git
	git clone --mirror https://lore.kernel.org/lkml/9 lkml/git/9.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 lkml lkml/ https://lore.kernel.org/lkml \
		linux-kernel@vger.kernel.org
	public-inbox-index lkml

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.kernel.vger.linux-kernel


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git