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Subject[PATCH] staging: bcm2835-audio: remove unnecessary log messages
Remove unnecessary log messages in the driver which were just tracking
function entry and exits.

Signed-off-by: Aishwarya Pant <aishpant@gmail.com>
---

There are many functions here like:
bcm2835_audio_setup(..)
bcm2835_audio_flush_playback_buffers(..)
bcm2835_audio_flush_buffers(..)
which are not doing any work. Should they be removed or kept here as
placeholder?

.../vc04_services/bcm2835-audio/bcm2835-ctl.c | 2 --
.../vc04_services/bcm2835-audio/bcm2835-pcm.c | 19 ------------
.../vc04_services/bcm2835-audio/bcm2835-vchiq.c | 36 ----------------------
3 files changed, 57 deletions(-)

diff --git a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-ctl.c b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-ctl.c
index 1fae169..f484bb0 100644
--- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-ctl.c
+++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-ctl.c
@@ -41,7 +41,6 @@
static int snd_bcm2835_ctl_info(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
- audio_info(" ... IN\n");
if (kcontrol->private_value == PCM_PLAYBACK_VOLUME) {
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = 1;
@@ -58,7 +57,6 @@ static int snd_bcm2835_ctl_info(struct snd_kcontrol *kcontrol,
uinfo->value.integer.min = 0;
uinfo->value.integer.max = AUDIO_DEST_MAX - 1;
}
- audio_info(" ... OUT\n");
return 0;
}

diff --git a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c
index 8bd69b9..e8cf0b9 100644
--- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c
+++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c
@@ -65,7 +65,6 @@ void bcm2835_playback_fifo(struct bcm2835_alsa_stream *alsa_stream)
unsigned int consumed = 0;
int new_period = 0;

- audio_info(" .. IN\n");

audio_info("alsa_stream=%p substream=%p\n", alsa_stream,
alsa_stream ? alsa_stream->substream : 0);
@@ -100,7 +99,6 @@ void bcm2835_playback_fifo(struct bcm2835_alsa_stream *alsa_stream)
} else {
audio_warning(" unexpected NULL substream\n");
}
- audio_info(" .. OUT\n");
}

/* open callback */
@@ -113,7 +111,6 @@ static int snd_bcm2835_playback_open_generic(
int idx;
int err;

- audio_info(" .. IN (%d)\n", substream->number);

if (mutex_lock_interruptible(&chip->audio_mutex)) {
audio_error("Interrupted whilst waiting for lock\n");
@@ -187,7 +184,6 @@ static int snd_bcm2835_playback_open_generic(
out:
mutex_unlock(&chip->audio_mutex);

- audio_info(" .. OUT =%d\n", err);

return err;
}
@@ -211,7 +207,6 @@ static int snd_bcm2835_playback_close(struct snd_pcm_substream *substream)
struct snd_pcm_runtime *runtime;
struct bcm2835_alsa_stream *alsa_stream;

- audio_info(" .. IN\n");

chip = snd_pcm_substream_chip(substream);
if (mutex_lock_interruptible(&chip->audio_mutex)) {
@@ -252,7 +247,6 @@ static int snd_bcm2835_playback_close(struct snd_pcm_substream *substream)
chip->opened &= ~(1 << substream->number);

mutex_unlock(&chip->audio_mutex);
- audio_info(" .. OUT\n");

return 0;
}
@@ -265,7 +259,6 @@ static int snd_bcm2835_pcm_hw_params(struct snd_pcm_substream *substream,
struct bcm2835_alsa_stream *alsa_stream = runtime->private_data;
int err;

- audio_info(" .. IN\n");

err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params));
if (err < 0) {
@@ -277,7 +270,6 @@ static int snd_bcm2835_pcm_hw_params(struct snd_pcm_substream *substream,
alsa_stream->channels = params_channels(params);
alsa_stream->params_rate = params_rate(params);
alsa_stream->pcm_format_width = snd_pcm_format_width(params_format(params));
- audio_info(" .. OUT\n");

return err;
}
@@ -285,7 +277,6 @@ static int snd_bcm2835_pcm_hw_params(struct snd_pcm_substream *substream,
/* hw_free callback */
static int snd_bcm2835_pcm_hw_free(struct snd_pcm_substream *substream)
{
- audio_info(" .. IN\n");
return snd_pcm_lib_free_pages(substream);
}

@@ -298,7 +289,6 @@ static int snd_bcm2835_pcm_prepare(struct snd_pcm_substream *substream)
int channels;
int err;

- audio_info(" .. IN\n");

if (mutex_lock_interruptible(&chip->audio_mutex))
return -EINTR;
@@ -339,7 +329,6 @@ static int snd_bcm2835_pcm_prepare(struct snd_pcm_substream *substream)
alsa_stream->pos, runtime->frame_bits);

mutex_unlock(&chip->audio_mutex);
- audio_info(" .. OUT\n");
return 0;
}

@@ -376,7 +365,6 @@ static int snd_bcm2835_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
struct bcm2835_alsa_stream *alsa_stream = runtime->private_data;
int err = 0;

- audio_info(" .. IN\n");

switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
@@ -419,7 +407,6 @@ static int snd_bcm2835_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
err = -EINVAL;
}

- audio_info(" .. OUT\n");
return err;
}

@@ -430,14 +417,12 @@ 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_info(" .. IN\n");

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);

- audio_info(" .. OUT\n");
return snd_pcm_indirect_playback_pointer(substream,
&alsa_stream->pcm_indirect,
alsa_stream->pos);
@@ -484,7 +469,6 @@ int snd_bcm2835_new_pcm(struct bcm2835_chip *chip, u32 numchannels)
struct snd_pcm *pcm;
int err;

- audio_info(" .. IN\n");
mutex_init(&chip->audio_mutex);
if (mutex_lock_interruptible(&chip->audio_mutex)) {
audio_error("Interrupted whilst waiting for lock\n");
@@ -513,7 +497,6 @@ int snd_bcm2835_new_pcm(struct bcm2835_chip *chip, u32 numchannels)

out:
mutex_unlock(&chip->audio_mutex);
- audio_info(" .. OUT\n");

return 0;
}
@@ -523,7 +506,6 @@ int snd_bcm2835_new_spdif_pcm(struct bcm2835_chip *chip)
struct snd_pcm *pcm;
int err;

- audio_info(" .. IN\n");
if (mutex_lock_interruptible(&chip->audio_mutex)) {
audio_error("Interrupted whilst waiting for lock\n");
return -EINTR;
@@ -545,7 +527,6 @@ int snd_bcm2835_new_spdif_pcm(struct bcm2835_chip *chip)
snd_bcm2835_playback_spdif_hw.buffer_bytes_max, snd_bcm2835_playback_spdif_hw.buffer_bytes_max);
out:
mutex_unlock(&chip->audio_mutex);
- audio_info(" .. OUT\n");

return 0;
}
diff --git a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-vchiq.c b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-vchiq.c
index 6e007db..dcc4dc4 100644
--- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-vchiq.c
+++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-vchiq.c
@@ -109,7 +109,6 @@ static void my_wq_function(struct work_struct *work)
container_of(work, struct bcm2835_audio_work, my_work);
int ret = -9;

- LOG_DBG(" .. IN %p:%d\n", w->alsa_stream, w->cmd);
switch (w->cmd) {
case BCM2835_AUDIO_START:
ret = bcm2835_audio_start_worker(w->alsa_stream);
@@ -126,12 +125,10 @@ static void my_wq_function(struct work_struct *work)
break;
}
kfree((void *)work);
- LOG_DBG(" .. OUT %d\n", ret);
}

int bcm2835_audio_start(struct bcm2835_alsa_stream *alsa_stream)
{
- LOG_DBG(" .. IN\n");
if (alsa_stream->my_wq) {
struct bcm2835_audio_work *work;

@@ -149,13 +146,11 @@ int bcm2835_audio_start(struct bcm2835_alsa_stream *alsa_stream)
return -EBUSY;
}
}
- LOG_DBG(" .. OUT\n");
return 0;
}

int bcm2835_audio_stop(struct bcm2835_alsa_stream *alsa_stream)
{
- LOG_DBG(" .. IN\n");
if (alsa_stream->my_wq) {
struct bcm2835_audio_work *work;

@@ -173,14 +168,12 @@ int bcm2835_audio_stop(struct bcm2835_alsa_stream *alsa_stream)
return -EBUSY;
}
}
- LOG_DBG(" .. OUT\n");
return 0;
}

int bcm2835_audio_write(struct bcm2835_alsa_stream *alsa_stream,
unsigned int count, void *src)
{
- LOG_DBG(" .. IN\n");
if (alsa_stream->my_wq) {
struct bcm2835_audio_work *work;

@@ -200,7 +193,6 @@ int bcm2835_audio_write(struct bcm2835_alsa_stream *alsa_stream,
return -EBUSY;
}
}
- LOG_DBG(" .. OUT\n");
return 0;
}

@@ -227,7 +219,6 @@ static void audio_vchi_callback(void *param,
int msg_len;
struct vc_audio_msg m;

- LOG_DBG(" .. IN instance=%p, handle=%p, alsa=%p, reason=%d, handle=%p\n",
instance, instance ? instance->vchi_handle[0] : NULL, instance ? instance->alsa_stream : NULL, reason, msg_handle);

if (reason != VCHI_CALLBACK_MSG_AVAILABLE)
@@ -269,7 +260,6 @@ static void audio_vchi_callback(void *param,
} else {
LOG_ERR(" .. unexpected m.type=%d\n", m.type);
}
- LOG_DBG(" .. OUT\n");
}

static struct bcm2835_audio_instance *
@@ -349,7 +339,6 @@ static int vc_vchi_audio_deinit(struct bcm2835_audio_instance *instance)
{
unsigned int i;

- LOG_DBG(" .. IN\n");

if (!instance) {
LOG_ERR("%s: invalid handle %p\n", __func__, instance);
@@ -382,7 +371,6 @@ static int vc_vchi_audio_deinit(struct bcm2835_audio_instance *instance)

kfree(instance);

- LOG_DBG(" .. OUT\n");

return 0;
}
@@ -396,7 +384,6 @@ static int bcm2835_audio_open_connection(struct bcm2835_alsa_stream *alsa_stream
(struct bcm2835_audio_instance *)alsa_stream->instance;
int ret;

- LOG_DBG(" .. IN\n");

LOG_INFO("%s: start\n", __func__);
BUG_ON(instance);
@@ -447,7 +434,6 @@ static int bcm2835_audio_open_connection(struct bcm2835_alsa_stream *alsa_stream
ret = 0;
err_free_mem:
kfree(vchi_instance);
- LOG_DBG(" .. OUT\n");

return ret;
}
@@ -459,7 +445,6 @@ int bcm2835_audio_open(struct bcm2835_alsa_stream *alsa_stream)
int status;
int ret;

- LOG_DBG(" .. IN\n");

my_workqueue_init(alsa_stream);

@@ -497,7 +482,6 @@ int bcm2835_audio_open(struct bcm2835_alsa_stream *alsa_stream)
vchi_service_release(instance->vchi_handle[0]);
mutex_unlock(&instance->vchi_mutex);
exit:
- LOG_DBG(" .. OUT\n");
return ret;
}

@@ -509,7 +493,6 @@ static int bcm2835_audio_set_ctls_chan(struct bcm2835_alsa_stream *alsa_stream,
int status;
int ret;

- LOG_DBG(" .. IN\n");

LOG_INFO(" Setting ALSA dest(%d), volume(%d)\n",
chip->dest, chip->volume);
@@ -558,7 +541,6 @@ static int bcm2835_audio_set_ctls_chan(struct bcm2835_alsa_stream *alsa_stream,
vchi_service_release(instance->vchi_handle[0]);
mutex_unlock(&instance->vchi_mutex);

- LOG_DBG(" .. OUT\n");
return ret;
}

@@ -567,7 +549,6 @@ int bcm2835_audio_set_ctls(struct bcm2835_chip *chip)
int i;
int ret = 0;

- LOG_DBG(" .. IN\n");
LOG_DBG(" Setting ALSA dest(%d), volume(%d)\n", chip->dest, chip->volume);

/* change ctls for all substreams */
@@ -584,7 +565,6 @@ int bcm2835_audio_set_ctls(struct bcm2835_chip *chip)
}
}
}
- LOG_DBG(" .. OUT ret=%d\n", ret);
return ret;
}

@@ -597,7 +577,6 @@ int bcm2835_audio_set_params(struct bcm2835_alsa_stream *alsa_stream,
int status;
int ret;

- LOG_DBG(" .. IN\n");

LOG_INFO(" Setting ALSA channels(%d), samplerate(%d), bits-per-sample(%d)\n",
channels, samplerate, bps);
@@ -653,15 +632,12 @@ int bcm2835_audio_set_params(struct bcm2835_alsa_stream *alsa_stream,
vchi_service_release(instance->vchi_handle[0]);
mutex_unlock(&instance->vchi_mutex);

- LOG_DBG(" .. OUT\n");
return ret;
}

int bcm2835_audio_setup(struct bcm2835_alsa_stream *alsa_stream)
{
- LOG_DBG(" .. IN\n");

- LOG_DBG(" .. OUT\n");

return 0;
}
@@ -673,7 +649,6 @@ static int bcm2835_audio_start_worker(struct bcm2835_alsa_stream *alsa_stream)
int status;
int ret;

- LOG_DBG(" .. IN\n");

if (mutex_lock_interruptible(&instance->vchi_mutex)) {
LOG_DBG("Interrupted whilst waiting for lock on (%d)\n",
@@ -701,7 +676,6 @@ static int bcm2835_audio_start_worker(struct bcm2835_alsa_stream *alsa_stream)
unlock:
vchi_service_release(instance->vchi_handle[0]);
mutex_unlock(&instance->vchi_mutex);
- LOG_DBG(" .. OUT\n");
return ret;
}

@@ -712,7 +686,6 @@ static int bcm2835_audio_stop_worker(struct bcm2835_alsa_stream *alsa_stream)
int status;
int ret;

- LOG_DBG(" .. IN\n");

if (mutex_lock_interruptible(&instance->vchi_mutex)) {
LOG_DBG("Interrupted whilst waiting for lock on (%d)\n",
@@ -741,7 +714,6 @@ static int bcm2835_audio_stop_worker(struct bcm2835_alsa_stream *alsa_stream)
unlock:
vchi_service_release(instance->vchi_handle[0]);
mutex_unlock(&instance->vchi_mutex);
- LOG_DBG(" .. OUT\n");
return ret;
}

@@ -752,7 +724,6 @@ int bcm2835_audio_close(struct bcm2835_alsa_stream *alsa_stream)
int status;
int ret;

- LOG_DBG(" .. IN\n");

my_workqueue_quit(alsa_stream);

@@ -800,7 +771,6 @@ int bcm2835_audio_close(struct bcm2835_alsa_stream *alsa_stream)
vc_vchi_audio_deinit(instance);
alsa_stream->instance = NULL;

- LOG_DBG(" .. OUT\n");
return ret;
}

@@ -812,7 +782,6 @@ static int bcm2835_audio_write_worker(struct bcm2835_alsa_stream *alsa_stream,
int status;
int ret;

- LOG_DBG(" .. IN\n");

LOG_INFO(" Writing %d bytes from %p\n", count, src);

@@ -878,7 +847,6 @@ static int bcm2835_audio_write_worker(struct bcm2835_alsa_stream *alsa_stream,
unlock:
vchi_service_release(instance->vchi_handle[0]);
mutex_unlock(&instance->vchi_mutex);
- LOG_DBG(" .. OUT\n");
return ret;
}

@@ -887,8 +855,6 @@ static int bcm2835_audio_write_worker(struct bcm2835_alsa_stream *alsa_stream,
*/
void bcm2835_audio_flush_buffers(struct bcm2835_alsa_stream *alsa_stream)
{
- LOG_DBG(" .. IN\n");
- LOG_DBG(" .. OUT\n");
}

/**
@@ -897,8 +863,6 @@ void bcm2835_audio_flush_buffers(struct bcm2835_alsa_stream *alsa_stream)
*/
void bcm2835_audio_flush_playback_buffers(struct bcm2835_alsa_stream *alsa_stream)
{
- LOG_DBG(" .. IN\n");
- LOG_DBG(" .. OUT\n");
}

unsigned int bcm2835_audio_retrieve_buffers(struct bcm2835_alsa_stream *alsa_stream)
--
2.7.4
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