netdev - Re: [PATCH net-next 4/9] iavf: in iavf_down, disable queues when removing the driver

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Date: Tue, 24 Oct 2023 16:42:34 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: Jacob Keller <jacob.e.keller@...el.com>
Cc: netdev@...r.kernel.org, David Miller <davem@...emloft.net>, Michal
 Schmidt <mschmidt@...hat.com>, Wojciech Drewek <wojciech.drewek@...el.com>,
 Rafal Romanowski <rafal.romanowski@...el.com>
Subject: Re: [PATCH net-next 4/9] iavf: in iavf_down, disable queues when
 removing the driver

On Mon, 23 Oct 2023 16:08:21 -0700 Jacob Keller wrote:
> From: Michal Schmidt <mschmidt@...hat.com>
> 
> In iavf_down, we're skipping the scheduling of certain operations if
> the driver is being removed. However, the IAVF_FLAG_AQ_DISABLE_QUEUES
> request must not be skipped in this case, because iavf_close waits
> for the transition to the __IAVF_DOWN state, which happens in
> iavf_virtchnl_completion after the queues are released.
> 
> Without this fix, "rmmod iavf" takes half a second per interface that's
> up and prints the "Device resources not yet released" warning.
> 
> Fixes: c8de44b577eb ("iavf: do not process adminq tasks when __IAVF_IN_REMOVE_TASK is set")

This looks like a 6.6 regression, why send it for net-next?