netdev - Re: [patch net-next v3 01/11] devlink: remove devlink features

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Message-ID: <20230109165500.3bebda0a@kernel.org>
Date:   Mon, 9 Jan 2023 16:55:00 -0800
From:   Jakub Kicinski <kuba@...nel.org>
To:     Jiri Pirko <jiri@...nulli.us>
Cc:     netdev@...r.kernel.org, davem@...emloft.net, pabeni@...hat.com,
        edumazet@...gle.com, michael.chan@...adcom.com,
        yisen.zhuang@...wei.com, salil.mehta@...wei.com,
        jesse.brandeburg@...el.com, anthony.l.nguyen@...el.com,
        tariqt@...dia.com, saeedm@...dia.com, leon@...nel.org,
        idosch@...dia.com, petrm@...dia.com, mailhol.vincent@...adoo.fr,
        jacob.e.keller@...el.com, gal@...dia.com
Subject: Re: [patch net-next v3 01/11] devlink: remove devlink features

On Mon,  9 Jan 2023 19:31:10 +0100 Jiri Pirko wrote:
> Note that mlx5 used this to enable devlink reload conditionally only
> when device didn't act as multi port slave. Move the multi port check
> into mlx5_devlink_reload_down() callback alongside with the other
> checks preventing the device from reload in certain states.

Right, but this is not 100% equivalent because we generate the
notifications _before_ we try to reload_down:

	devlink_ns_change_notify(devlink, dest_net, curr_net, false);
	err = devlink->ops->reload_down(devlink, !!dest_net, action, limit, extack);
	if (err)
		return err;

IDK why, I haven't investigated.