USB transfer warnings

[StefJar]

after pulling the latest master branch. I see so much more logging on the usb and warnings. I am pretty sure that it is related to that commits:

commit 7a1ab248911837688ec9db75f615fe261b80e688
Author: Johann Fischer <j.fischer@phytec.de>
Date:   Thu Dec 12 17:09:44 2019 +0100    usb: rework USB transfer logging    Rework USB transfer logging.    Signed-off-by: Johann Fischer <j.fischer@phytec.de>

commit 7bd0de0c61ac279697cd9afefe7d05fa2979903c
Author: Johann Fischer <j.fischer@phytec.de>
Date:   Thu Dec 12 16:38:28 2019 +0100    usb: move USB transfer functions to appropriate file    Move USB transfer functions to appropriate file.    Signed-off-by: Johann Fischer <j.fischer@phytec.de>

Together with my stm32f412 using the usb as an acm I am seeing these warnings etc:

[00:04:37.206,000] <wrn> usb_transfer: Transfer cancelled or completed, ep 0x82
[00:04:37.215,000] <wrn> usb_transfer: Transfer cancelled or completed, ep 0x82
[00:04:37.333,000] <wrn> usb_transfer: Transfer cancelled or completed, ep 0x01
[00:04:37.341,000] <wrn> usb_transfer: Transfer cancelled or completed, ep 0x01
[00:04:37.350,000] <wrn> usb_transfer: Transfer cancelled or completed, ep 0x01

the usb acm seems to work like before.

@jfischer-phytec-iot can you pls have a check on that?

[jfischer-no]

@StefJar I will check it asap. We did not log it earlier and I did not change any logic in the transfers, so it just improper log level.

[sslupsky]

Has this issue been investigated?

I updated my zephyr from 2.1.0 to 2.2.0 and USB is broken. I am seeing the same thing reported here on sam0:

[00:00:19.518,615] <wrn> usb_transfer: Transfer cancelled or completed, ep 0x01
[00:00:19.518,981] <wrn> usb_transfer: Transfer cancelled or completed, ep 0x82
[00:00:19.519,165] <wrn> usb_transfer: Transfer cancelled or completed, ep 0x82
[00:00:19.519,348] <wrn> usb_transfer: Transfer cancelled or completed, ep 0x82
[00:00:19.519,714] <wrn> usb_transfer: Transfer cancelled or completed, ep 0x82
[00:00:19.520,080] <wrn> usb_transfer: Transfer cancelled or completed, ep 0x82
[00:00:19.520,446] <wrn> usb_transfer: Transfer cancelled or completed, ep 0x82

usb_transfer is spewing out hundreds of log messages per second. This issue was not present in 2.1.0.

[sslupsky]

Ok, I see what you mean about the log level. There is "new" log warning added that is causing this issue. So, what is causing this? Is this some kind of error?

[jfischer-no]

So, what is causing this? Is this some kind of error?

Just a wrong log level, probably accidentally changed for debugging.