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SubjectRe: B53 DSA switch problem on Banana Pi-R1 on Fedora 26
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On 24.05.2018 07:29, Gerhard Wiesinger wrote:
> After some analysis with Florian (thnx) we found out that the current
> implementation is broken:
>
> https://patchwork.ozlabs.org/patch/836538/
> https://github.com/torvalds/linux/commit/c499696e7901bda18385ac723b7bd27c3a4af624#diff-a2b6f8d89e18de600e873ac3ac43fa1d
>
>
> Florians comment:
>
> c499696e7901bda18385ac723b7bd27c3a4af624 ("net: dsa: b53: Stop using
> dev->cpu_port incorrectly") since it would result in no longer setting
> the CPU port as tagged for a specific VLAN. Easiest way for you right
> now is to just revert it, but this needs some more thoughts for a proper
> upstream change. I will think about it some more.

Can confirm 4.14.18-200.fc26.armv7hl works, 4.15.x should be broken.

# Kernel 4.14.x ok
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git/log/drivers/net/dsa/b53?h=v4.14.43
# Kernel 4.15.x should be NOT ok
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git/log/drivers/net/dsa/b53?h=v4.15.18

Ciao,
Gerhard

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