netdev - Re: [PATCH bpf] xsk: Clear pool even for inactive queues

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Date:   Tue, 19 Jan 2021 22:00:07 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Maxim Mikityanskiy <maximmi@...lanox.com>
Cc:     magnus.karlsson@...el.com, bjorn.topel@...el.com,
        jonathan.lemon@...il.com, ast@...nel.org, daniel@...earbox.net,
        davem@...emloft.net, kuba@...nel.org, hawk@...nel.org,
        john.fastabend@...il.com, netdev@...r.kernel.org,
        bpf@...r.kernel.org
Subject: Re: [PATCH bpf] xsk: Clear pool even for inactive queues

Hello:

This patch was applied to bpf/bpf.git (refs/heads/master):

On Mon, 18 Jan 2021 18:03:33 +0200 you wrote:
> The number of queues can change by other means, rather than ethtool. For
> example, attaching an mqprio qdisc with num_tc > 1 leads to creating
> multiple sets of TX queues, which may be then destroyed when mqprio is
> deleted. If an AF_XDP socket is created while mqprio is active,
> dev->_tx[queue_id].pool will be filled, but then real_num_tx_queues may
> decrease with deletion of mqprio, which will mean that the pool won't be
> NULLed, and a further increase of the number of TX queues may expose a
> dangling pointer.
> 
> [...]

Here is the summary with links:
  - [bpf] xsk: Clear pool even for inactive queues
    https://git.kernel.org/bpf/bpf/c/b425e24a934e

You are awesome, thank you!
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