[PATCH v2 1/2] bcm53xx: remove extsw interface on Linksys EA9500

Rafał Miłecki rafal at milecki.pl
Sat Oct 23 14:14:03 PDT 2021

On 2021-10-23 23:09, Arınç ÜNAL wrote:
> On 23/10/2021 23:35, Rafał Miłecki wrote:
>> On 2021-10-23 21:56, Arınç ÜNAL wrote:
>>> Remove extsw interface from the bridge as it's used as a master
>>> interface by the DSA driver.
>> According to Vivek it's required, I explicitly asked about it:
>> https://forum.openwrt.org/t/build-for-linksys-ea9500/1817/984
> I suspect the reason for this happening is:
>> # For kernels earlier than v5.12, the master interface needs to be
>> # brought up manually before the slave 
>> ports.https://www.kernel.org/doc/html/latest/networking/dsa/configuration.html#configuration-with-tagging-support
> I have a branch running kernel 5.15 on bcm53xx on Asus RT-AC88U. All
> interfaces work fine without adding extsw to the bridge.
> https://github.com/arinc9/openwrt/commit/26019530962967079c3772dc3a2ee57b68662bab
> A fix should be implemented in a different way than including the
> extsw interface on the bridge (an initscript would do).

I think we have backported related commit, unless it's a different one.

See commit 2e17c710954b ("kernel: Backport patch to automatically bring 
up DSA master when opening user port")

I prefer the right fix of course, but you need to point me to it first 

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