netdev - RE: [PATCH net-next v4 1/6] devlink: pass extack through to devlink

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Message-ID: <IA3PR11MB8986A51FD457CD040F2D73FDE5D6A@IA3PR11MB8986.namprd11.prod.outlook.com>
Date: Tue, 18 Nov 2025 07:17:41 +0000
From: "Loktionov, Aleksandr" <aleksandr.loktionov@...el.com>
To: Daniel Zahka <daniel.zahka@...il.com>, Jiri Pirko <jiri@...nulli.us>,
	"David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, "Simon
 Horman" <horms@...nel.org>, Jonathan Corbet <corbet@....net>, Srujana Challa
	<schalla@...vell.com>, Bharat Bhushan <bbhushan2@...vell.com>, Herbert Xu
	<herbert@...dor.apana.org.au>, Brett Creeley <brett.creeley@....com>, "Andrew
 Lunn" <andrew+netdev@...n.ch>, Michael Chan <michael.chan@...adcom.com>,
	Pavan Chebbi <pavan.chebbi@...adcom.com>, "Nguyen, Anthony L"
	<anthony.l.nguyen@...el.com>, "Kitszel, Przemyslaw"
	<przemyslaw.kitszel@...el.com>, "Goutham, Sunil Kovvuri"
	<sgoutham@...vell.com>, Linu Cherian <lcherian@...vell.com>, Geetha sowjanya
	<gakula@...vell.com>, Jerin Jacob <jerinj@...vell.com>, hariprasad
	<hkelam@...vell.com>, Subbaraya Sundeep <sbhatta@...vell.com>, Tariq Toukan
	<tariqt@...dia.com>, Saeed Mahameed <saeedm@...dia.com>, Leon Romanovsky
	<leon@...nel.org>, Mark Bloch <mbloch@...dia.com>, Ido Schimmel
	<idosch@...dia.com>, Petr Machata <petrm@...dia.com>, Manish Chopra
	<manishc@...vell.com>, Maxime Coquelin <mcoquelin.stm32@...il.com>, Alexandre
 Torgue <alexandre.torgue@...s.st.com>, Siddharth Vadapalli
	<s-vadapalli@...com>, Roger Quadros <rogerq@...nel.org>, Loic Poulain
	<loic.poulain@....qualcomm.com>, Sergey Ryazanov <ryazanov.s.a@...il.com>,
	Johannes Berg <johannes@...solutions.net>, Vladimir Oltean
	<olteanv@...il.com>, Michal Swiatkowski <michal.swiatkowski@...ux.intel.com>,
	"Ertman, David M" <david.m.ertman@...el.com>, Vlad Dumitrescu
	<vdumitrescu@...dia.com>, "Russell King (Oracle)"
	<rmk+kernel@...linux.org.uk>, Alexander Sverdlin
	<alexander.sverdlin@...il.com>, Lorenzo Bianconi <lorenzo@...nel.org>
CC: "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
	"linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>
Subject: RE: [PATCH net-next v4 1/6] devlink: pass extack through to
 devlink_param::get()



> -----Original Message-----
> From: Daniel Zahka <daniel.zahka@...il.com>
> Sent: Tuesday, November 18, 2025 1:24 AM
> To: Jiri Pirko <jiri@...nulli.us>; David S. Miller
> <davem@...emloft.net>; Eric Dumazet <edumazet@...gle.com>; Jakub
> Kicinski <kuba@...nel.org>; Paolo Abeni <pabeni@...hat.com>; Simon
> Horman <horms@...nel.org>; Jonathan Corbet <corbet@....net>; Srujana
> Challa <schalla@...vell.com>; Bharat Bhushan <bbhushan2@...vell.com>;
> Herbert Xu <herbert@...dor.apana.org.au>; Brett Creeley
> <brett.creeley@....com>; Andrew Lunn <andrew+netdev@...n.ch>; Michael
> Chan <michael.chan@...adcom.com>; Pavan Chebbi
> <pavan.chebbi@...adcom.com>; Nguyen, Anthony L
> <anthony.l.nguyen@...el.com>; Kitszel, Przemyslaw
> <przemyslaw.kitszel@...el.com>; Goutham, Sunil Kovvuri
> <sgoutham@...vell.com>; Linu Cherian <lcherian@...vell.com>; Geetha
> sowjanya <gakula@...vell.com>; Jerin Jacob <jerinj@...vell.com>;
> hariprasad <hkelam@...vell.com>; Subbaraya Sundeep
> <sbhatta@...vell.com>; Tariq Toukan <tariqt@...dia.com>; Saeed
> Mahameed <saeedm@...dia.com>; Leon Romanovsky <leon@...nel.org>; Mark
> Bloch <mbloch@...dia.com>; Ido Schimmel <idosch@...dia.com>; Petr
> Machata <petrm@...dia.com>; Manish Chopra <manishc@...vell.com>;
> Maxime Coquelin <mcoquelin.stm32@...il.com>; Alexandre Torgue
> <alexandre.torgue@...s.st.com>; Siddharth Vadapalli <s-
> vadapalli@...com>; Roger Quadros <rogerq@...nel.org>; Loic Poulain
> <loic.poulain@....qualcomm.com>; Sergey Ryazanov
> <ryazanov.s.a@...il.com>; Johannes Berg <johannes@...solutions.net>;
> Vladimir Oltean <olteanv@...il.com>; Michal Swiatkowski
> <michal.swiatkowski@...ux.intel.com>; Loktionov, Aleksandr
> <aleksandr.loktionov@...el.com>; Ertman, David M
> <david.m.ertman@...el.com>; Vlad Dumitrescu <vdumitrescu@...dia.com>;
> Russell King (Oracle) <rmk+kernel@...linux.org.uk>; Alexander Sverdlin
> <alexander.sverdlin@...il.com>; Lorenzo Bianconi <lorenzo@...nel.org>
> Cc: netdev@...r.kernel.org; linux-doc@...r.kernel.org; linux-
> rdma@...r.kernel.org
> Subject: [PATCH net-next v4 1/6] devlink: pass extack through to
> devlink_param::get()
> 
> Allow devlink_param::get() handlers to report error messages via
> extack. This function is called in a few different contexts, but not
> all of them will have an valid extack to use.
> 
> When devlink_param::get() is called from param_get_doit or
> param_get_dumpit contexts, pass the extack through so that drivers can
> report errors when retrieving param values. devlink_param::get() is
> called from the context of devlink_param_notify(), pass NULL in for
> the extack.
> 
> Reviewed-by: Saeed Mahameed <saeedm@...dia.com>
> Signed-off-by: Daniel Zahka <daniel.zahka@...il.com>
> ---
> 
> Notes:
>     v3:
>     - fix warnings about undocumented param in intel ice driver
> 

...

> 
> --
> 2.47.3

Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@...el.com>