netdev - Re: [PATCH net] net: accept an empty mask in /sys/class/net/*/queues/rx-*/rps

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Message-ID: <c75f6c00-47ce-4557-151d-f65609b5525c@gmail.com>
Date:   Tue, 11 Aug 2020 21:22:08 -0600
From:   David Ahern <dsahern@...il.com>
To:     Maciej Żenczykowski <maze@...gle.com>
Cc:     Eric Dumazet <edumazet@...gle.com>,
        "David S . Miller" <davem@...emloft.net>,
        netdev <netdev@...r.kernel.org>,
        Eric Dumazet <eric.dumazet@...il.com>,
        Alex Belits <abelits@...vell.com>,
        Nitesh Narayan Lal <nitesh@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>
Subject: Re: [PATCH net] net: accept an empty mask in
 /sys/class/net/*/queues/rx-*/rps_cpus

On 8/11/20 9:19 PM, Maciej Żenczykowski wrote:
> Before breakage, post fix:
> 
> sfp6:~# echo 0 > /sys/class/net/lo/queues/rx-0/rps_cpus
> 
> With breakage:
> lpk17:~# echo 0 > /sys/class/net/lo/queues/rx-0/rps_cpus
> -bash: echo: write error: Invalid argument
> 

ah, so this is recent breakage with 5.9. I had not hit before hence the
question. thanks for clarifying.