Updating to Linux 5.15.0-90-generic breaks r8152 ethernet on thunderbolt

[Pablo Oliveira]

Updating from Linux 5.15.0-88-generic to 5.15.0-90-generic breaks ethernet support.

In my setup, the ethernet port is inside a Thunderbolt Dell WD19TB docking station.

On 5.15.0-88 the ethernet device works and is shown with ip and on dmesg logs :

$ sudo dmesg
...
 27 [ 2.260869] r8152 4-1.4:1.0 eth0: v1.12.13
 28 [ 2.268290] r8152 4-1.4:1.0 enxcc483ac3b5f5: renamed from eth0
 29 [ 2.268290] r8152 4-1.4:1.0 enxcc483ac3b5f5: renamed from eth0
 30 [ 7.308677] r8152 4-1.4:1.0 enxcc483ac3b5f5: carrier on
 31 [ 7.523473] IPv6: ADDRCONF(NETDEV_CHANGE): enxcc483ac3b5f5: link becomes ready
...

$ ip a
[...]
2: enxcc483ac3b5f5: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether cc:48:3a:c3:b5:f5 brd ff:ff:ff:ff:ff:ff
    inet 192.168.133.178/24 brd 192.168.133.255 scope global dynamic noprefixroute enxcc483ac3b5f5
       valid_lft 1760sec preferred_lft 1760sec
    inet6 fe80::887f:293c:8126:cb43/64 scope link noprefixroute
       valid_lft forever preferred_lft forever

On 5.15.0-90 the device cannot be found.

Thanks for looking into this regression.

ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: linux-image-5.15.0-90-generic 5.15.0-90.100
ProcVersionSignature: Ubuntu 5.15.0-90.100-generic 5.15.131
Uname: Linux 5.15.0-90-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu82.5
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: poliveira 1905 F.... pulseaudio
 /dev/snd/controlC0: poliveira 1905 F.... pulseaudio
CRDA: N/A
CasperMD5CheckResult: unknown
CurrentDesktop: ubuntu:GNOME
Date: Thu Nov 9 16:58:05 2023
DistributionChannelDescriptor:
 # This is the distribution channel descriptor for the OEM CDs
 # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor
 canonical-oem-somerville-bionic-amd64-20180608-47+berlinetta-cfl-r+X79
InstallationDate: Installed on 2020-10-29 (1106 days ago)
InstallationMedia: Ubuntu 18.04 "Bionic" - Build amd64 LIVE Binary 20180608-09:38
IwConfig:
 lo no wireless extensions.

 wlp59s0 no wireless extensions.
MachineType: Dell Inc. Precision 5540
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.15.0-90-generic root=UUID=52eafe9e-33dc-415d-9dec-5c74761fa536 ro nvidia-drm.modeset=1 mem_sleep_default=deep tsc=reliable quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-5.15.0-90-generic N/A
 linux-backports-modules-5.15.0-90-generic N/A
 linux-firmware 20220329.git681281e4-0ubuntu3.22
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/18/2023
dmi.bios.release: 1.23
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.23.0
dmi.board.name: 03G9D9
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr1.23.0:bd07/18/2023:br1.23:svnDellInc.:pnPrecision5540:pvr:rvnDellInc.:rn03G9D9:rvrA00:cvnDellInc.:ct10:cvr:sku0906:
dmi.product.family: Precision
dmi.product.name: Precision 5540
dmi.product.sku: 0906
dmi.sys.vendor: Dell Inc.