ALSA: usb-audio: Improve some debug prints
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>
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@ -367,8 +367,8 @@ static void queue_pending_output_urbs(struct snd_usb_endpoint *ep)
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err = usb_submit_urb(ctx->urb, GFP_ATOMIC);
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if (err < 0)
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usb_audio_err(ep->chip,
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"Unable to submit urb #%d: %d (urb %p)\n",
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ctx->index, err, ctx->urb);
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"Unable to submit urb #%d: %d at %s\n",
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ctx->index, err, __func__);
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else
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set_bit(ctx->index, &ep->active_mask);
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}
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@ -494,8 +494,8 @@ struct snd_usb_endpoint *snd_usb_add_endpoint(struct snd_usb_audio *chip,
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alts->desc.bInterfaceNumber,
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alts->desc.bAlternateSetting);
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if (ep) {
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usb_audio_dbg(ep->chip, "Re-using EP %x in iface %d,%d @%p\n",
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ep_num, ep->iface, ep->altsetting, ep);
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usb_audio_dbg(ep->chip, "Re-using EP %x in iface %d,%d\n",
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ep_num, ep->iface, ep->altsetting);
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goto __exit_unlock;
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}
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@ -218,7 +218,7 @@ static int start_endpoints(struct snd_usb_substream *subs)
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if (!test_and_set_bit(SUBSTREAM_FLAG_DATA_EP_STARTED, &subs->flags)) {
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struct snd_usb_endpoint *ep = subs->data_endpoint;
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dev_dbg(&subs->dev->dev, "Starting data EP @%p\n", ep);
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dev_dbg(&subs->dev->dev, "Starting data EP 0x%x\n", ep->ep_num);
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ep->data_subs = subs;
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err = snd_usb_endpoint_start(ep);
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@ -232,7 +232,7 @@ static int start_endpoints(struct snd_usb_substream *subs)
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!test_and_set_bit(SUBSTREAM_FLAG_SYNC_EP_STARTED, &subs->flags)) {
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struct snd_usb_endpoint *ep = subs->sync_endpoint;
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dev_dbg(&subs->dev->dev, "Starting sync EP @%p\n", ep);
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dev_dbg(&subs->dev->dev, "Starting sync EP 0x%x\n", ep->ep_num);
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ep->sync_slave = subs->data_endpoint;
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err = snd_usb_endpoint_start(ep);
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@ -255,12 +255,17 @@ static void sync_pending_stops(struct snd_usb_substream *subs)
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static void stop_endpoints(struct snd_usb_substream *subs)
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{
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if (test_and_clear_bit(SUBSTREAM_FLAG_SYNC_EP_STARTED, &subs->flags)) {
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dev_dbg(&subs->dev->dev, "Stopping sync EP 0x%x\n",
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subs->sync_endpoint->ep_num);
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snd_usb_endpoint_stop(subs->sync_endpoint);
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subs->sync_endpoint->sync_slave = NULL;
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}
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if (test_and_clear_bit(SUBSTREAM_FLAG_DATA_EP_STARTED, &subs->flags))
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if (test_and_clear_bit(SUBSTREAM_FLAG_DATA_EP_STARTED, &subs->flags)) {
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dev_dbg(&subs->dev->dev, "Stopping data EP 0x%x\n",
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subs->data_endpoint->ep_num);
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snd_usb_endpoint_stop(subs->data_endpoint);
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}
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}
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/* PCM sync_stop callback */
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