diff options
| author | Takashi Iwai <tiwai@suse.de> | 2020-11-23 09:53:13 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2020-11-23 15:12:17 +0100 |
| commit | e93e890e16ef5a0605b7cdc52b3bde50d88d7207 (patch) | |
| tree | 9976f3f894df6578842cecd0ba9d3afa1b140ef1 /sound/usb/pcm.c | |
| parent | ALSA: usb-audio: Set and clear sync EP link properly (diff) | |
| download | linux-e93e890e16ef5a0605b7cdc52b3bde50d88d7207.tar.xz linux-e93e890e16ef5a0605b7cdc52b3bde50d88d7207.zip | |
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>
Diffstat (limited to 'sound/usb/pcm.c')
| -rw-r--r-- | sound/usb/pcm.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c index 8800ec627a73..8f4fe65d5c37 100644 --- a/sound/usb/pcm.c +++ b/sound/usb/pcm.c @@ -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 */ |