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Date:   Tue, 11 Aug 2020 20:19:36 -0700
From:   Maciej ┼╗enczykowski <maze@...gle.com>
To:     David Ahern <dsahern@...il.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

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

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