netdev - Re: [PATCH v5 net-next 07/12] net: shaper: implement introspection support

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Message-ID: <20240829191116.2af4da33@kernel.org>
Date: Thu, 29 Aug 2024 19:11:16 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: Paolo Abeni <pabeni@...hat.com>
Cc: netdev@...r.kernel.org, Jiri Pirko <jiri@...nulli.us>, Madhu Chittim
 <madhu.chittim@...el.com>, Sridhar Samudrala <sridhar.samudrala@...el.com>,
 Simon Horman <horms@...nel.org>, John Fastabend <john.fastabend@...il.com>,
 Sunil Kovvuri Goutham <sgoutham@...vell.com>, Jamal Hadi Salim
 <jhs@...atatu.com>, Donald Hunter <donald.hunter@...il.com>,
 anthony.l.nguyen@...el.com, przemyslaw.kitszel@...el.com,
 intel-wired-lan@...ts.osuosl.org, edumazet@...gle.com
Subject: Re: [PATCH v5 net-next 07/12] net: shaper: implement introspection
 support

On Thu, 29 Aug 2024 17:17:00 +0200 Paolo Abeni wrote:
> The netlink op is a simple wrapper around the device callback.
> 
> Extend the existing fetch_dev() helper adding an attribute argument
> for the requested device. Reuse such helper in the newly implemented
> operation.


It's not just for introspection, it's also for the core to do error
checking. Does something prevent user from installing a PPS shaper 
in iavf right now ?