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ALSA: usb-audio: Improve some debug prints

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There are a few rooms for improvements wrt the debug prints:
- The EP debug print is shown only at starting, not at stopping
- The EP debug print contains useless object addresses
- Some helpers show the urb and the EP object addresses, too

This patch addresses those shortcomings.

Tested-by: Keith Milner <kamilner@superlative.org>
Tested-by: Dylan Robinson <dylan_robinson@motu.com>
Link: https://lore.kernel.org/r/20201123085347.19667-8-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2020-11-23 09:53:13 +01:00
parent 1803503fe9
commit e93e890e16
2 changed files with 12 additions and 7 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
sound/usb/endpoint.c
View file

@ -367,8 +367,8 @@ static void queue_pending_output_urbs(struct snd_usb_endpoint *ep)
err = usb_submit_urb(ctx->urb, GFP_ATOMIC);
if (err < 0)
usb_audio_err(ep->chip,
"Unable to submit urb #%d: %d (urb %p)\n",
ctx->index, err, ctx->urb);
"Unable to submit urb #%d: %d at %s\n",
ctx->index, err, __func__);
else
set_bit(ctx->index, &ep->active_mask);
}
@ -494,8 +494,8 @@ struct snd_usb_endpoint *snd_usb_add_endpoint(struct snd_usb_audio *chip,
alts->desc.bInterfaceNumber,
alts->desc.bAlternateSetting);
if (ep) {
usb_audio_dbg(ep->chip, "Re-using EP %x in iface %d,%d @%p\n",
ep_num, ep->iface, ep->altsetting, ep);
usb_audio_dbg(ep->chip, "Re-using EP %x in iface %d,%d\n",
ep_num, ep->iface, ep->altsetting);
goto __exit_unlock;
}

11
sound/usb/pcm.c
View file

@ -218,7 +218,7 @@ static int start_endpoints(struct snd_usb_substream *subs)
if (!test_and_set_bit(SUBSTREAM_FLAG_DATA_EP_STARTED, &subs->flags)) {
struct snd_usb_endpoint *ep = subs->data_endpoint;
dev_dbg(&subs->dev->dev, "Starting data EP @%p\n", ep);
dev_dbg(&subs->dev->dev, "Starting data EP 0x%x\n", ep->ep_num);
ep->data_subs = subs;
err = snd_usb_endpoint_start(ep);
@ -232,7 +232,7 @@ static int start_endpoints(struct snd_usb_substream *subs)
!test_and_set_bit(SUBSTREAM_FLAG_SYNC_EP_STARTED, &subs->flags)) {
struct snd_usb_endpoint *ep = subs->sync_endpoint;
dev_dbg(&subs->dev->dev, "Starting sync EP @%p\n", ep);
dev_dbg(&subs->dev->dev, "Starting sync EP 0x%x\n", ep->ep_num);
ep->sync_slave = subs->data_endpoint;
err = snd_usb_endpoint_start(ep);
@ -255,12 +255,17 @@ static void sync_pending_stops(struct snd_usb_substream *subs)
static void stop_endpoints(struct snd_usb_substream *subs)
{
if (test_and_clear_bit(SUBSTREAM_FLAG_SYNC_EP_STARTED, &subs->flags)) {
dev_dbg(&subs->dev->dev, "Stopping sync EP 0x%x\n",
subs->sync_endpoint->ep_num);
snd_usb_endpoint_stop(subs->sync_endpoint);
subs->sync_endpoint->sync_slave = NULL;
}
if (test_and_clear_bit(SUBSTREAM_FLAG_DATA_EP_STARTED, &subs->flags))
if (test_and_clear_bit(SUBSTREAM_FLAG_DATA_EP_STARTED, &subs->flags)) {
dev_dbg(&subs->dev->dev, "Stopping data EP 0x%x\n",
subs->data_endpoint->ep_num);
snd_usb_endpoint_stop(subs->data_endpoint);
}
}
/* PCM sync_stop callback */