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Bug#927825: arm: mvneta driver used on Armada XP GP boards does not receive packets (regression from 4.9)

On 2019-04-23 22:16, Aurelien Jarno wrote:
> Source: linux
> Version: 4.19.28-2
> Severity: important
> After upgrading hartmann.debian.org (an armhf buildd using an Armada XP
> GP board) from buster to stretch, the ethernet device is not working

More precisely the board is a "Marvell Armada XP Development Board

> anymore. Using tcpdump on both the buildd and a remote host, it appears
> that the packets correctly leave the board and that the reception side
> fails.
> The module used for the ethernet device is mvneta. The corresponding DT
> compatible entry is "marvell,armada-xp-neta".

I have started a "bisection" with the kernels from snapshot. This is
what I have found so far:

This one works:
- linux-image-4.19.0-rc6-armmp-lpae_4.19~rc6-1~exp1_armhf.deb 

The following ones don't:
- linux-image-4.19.0-rc7-armmp-lpae_4.19~rc7-1~exp1_armhf.deb
- linux-image-5.0.0-trunk-armmp_5.0.2-1~exp1_armhf.deb

My guess (I don't have time to try more now) is that the issue is caused
by the following change:

|  [ Uwe Kleine-König ]
|  * [armhf] enable MVNETA_BM_ENABLE and CAN_FLEXCAN as a module

Add Uwe as Cc: so that he can comment on the change.


Aurelien Jarno                          GPG: 4096R/1DDD8C9B
aurelien@aurel32.net                 http://www.aurel32.net

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