netdev - Re: [PATCH net-next 1/2] devlink: Allow parameter registration/unregistration during runtime

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Date:   Thu, 10 Mar 2022 20:33:48 -0800
From:   Jakub Kicinski <kuba@...nel.org>
To:     Tony Nguyen <anthony.l.nguyen@...el.com>
Cc:     davem@...emloft.net,
        Sridhar Samudrala <sridhar.samudrala@...el.com>,
        netdev@...r.kernel.org, sudheer.mogilappagari@...el.com,
        amritha.nambiar@...el.com, jiri@...dia.com, leonro@...dia.com,
        Bharathi Sreenivas <bharathi.sreenivas@...el.com>
Subject: Re: [PATCH net-next 1/2] devlink: Allow parameter
 registration/unregistration during runtime

On Thu, 10 Mar 2022 15:12:34 -0800 Tony Nguyen wrote:
> From: Sridhar Samudrala <sridhar.samudrala@...el.com>
> 
> commit 7a690ad499e7 ("devlink: Clean not-executed param notifications")
> added ASSERTs and removed notifications when devlink parameters are
> registered by the drivers after the associated devlink instance is
> already registered.
> The next patch in this series adds a feature in 'ice' driver that is
> only enabled when ADQ queue groups are created and introduces a
> devlink parameter to configure this feature per queue group.
> 
> To allow dynamic parameter registration/unregistration during runtime,
> revert the changes added by the above commit.

I'm pretty sure what you're doing is broken. You should probably wait
until my patches to allow explicit devlink locking are merged and build
on top of that.