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From: Jarkko Nikula <jarkko.nikula@linux.intel.com>
To: Oleksij Rempel <linux@rempel-privat.de>
Cc: netdev@vger.kernel.org, linux-usb@vger.kernel.org,
	"David S. Miller" <davem@davemloft.net>
Subject: Regression with commit e532a096be0e ("net: usb: asix: ax88772: add phylib support")
Date: Wed, 11 Aug 2021 17:55:34 +0300	[thread overview]
Message-ID: <3904c728-1ea2-9c2b-ec11-296396fd2f7e@linux.intel.com> (raw)

Hi

Our ASIX USB ethernet adapter stopped working after v5.14-rc1. It 
doesn't get an IP from DHCP.

v5.13 works ok. v5.14-rc1 and today's head 761c6d7ec820 ("Merge tag 
'arc-5.14-rc6' of 
git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc") show the 
regression.

I bisected regression into e532a096be0e ("net: usb: asix: ax88772: add 
phylib support").

Here's the dmesg snippet from working and non-working cases:

OK:
[    6.115773] asix 1-8:1.0 eth0: register 'asix' at usb-0000:00:14.0-8, 
ASIX AX88772 USB 2.0 Ethernet, 00:10:60:31:d5:f8
[    8.595202] asix 1-8:1.0 eth0: link up, 100Mbps, full-duplex, lpa 0xC1E1

NOK:
[    6.511543] asix 1-8:1.0 eth0: register 'asix' at usb-0000:00:14.0-8, 
ASIX AX88772 USB 2.0 Ethernet, 00:10:60:31:d5:f8
[    8.518219] asix 1-8:1.0 eth0: Link is Down

lsusb -d 0b95:7720
Bus 001 Device 002: ID 0b95:7720 ASIX Electronics Corp. AX88772

Jarkko

             reply	other threads:[~2021-08-11 14:55 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-11 14:55 Jarkko Nikula [this message]
2021-08-16 15:13 ` Regression with commit e532a096be0e ("net: usb: asix: ax88772: add phylib support") Jakub Kicinski
2021-08-16 16:18   ` Oleksij Rempel
2021-08-17  8:23     ` Jarkko Nikula
2021-08-17  9:09       ` Oleksij Rempel
2021-08-17 11:55         ` Jarkko Nikula
2021-08-20  4:06           ` Oleksij Rempel
2021-08-20  8:38             ` Jarkko Nikula

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