On Wed, 11 Aug 2021 17:55:34 +0300 Jarkko Nikula wrote:
> 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").
Oleksij, any comments?
> 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
