[nft] src: allow for updating devices on existing netdev chain - Test result

[Martin Zaharinov <micron10@gmail.com>]

Hi Pablo

Patch look good and work but in my test after try to add ppp0 on over chain 1024 receive : Error: Could not process rule: Argument list too long


Test is make like this :


create chain :

for i in `seq 2 9999`; do nft create chain netdev x int$i \{ type filter hook egress priority -500\; policy accept\; \}; done


after that add device: 

for i in `seq 2 9999`; do nft add chain netdev qos int$i '{ devices = { ppp0 }; }'; done


when reach int1023 all is fine but in next 1024 receive this error .

change device from ppp0 to eth0 add device on int1024.

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And one more when run add device line this for 1023 line added for 30 sec

Is there options to optimize little more.


Best regards,
Martin