netdev - RE: [Intel-wired-lan] [PATCH v2 iwl-net 7/8] ice: add missing WRITE_ONCE when clearing ice_rx_ring::xdp

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Message-ID: <SJ2PR11MB8297069EE9B36479F2ADB69EEAF82@SJ2PR11MB8297.namprd11.prod.outlook.com>
Date: Tue, 4 Jun 2024 06:52:05 +0000
From: "Rout, ChandanX" <chandanx.rout@...el.com>
To: "Fijalkowski, Maciej" <maciej.fijalkowski@...el.com>,
	"intel-wired-lan@...ts.osuosl.org" <intel-wired-lan@...ts.osuosl.org>
CC: "Zaremba, Larysa" <larysa.zaremba@...el.com>, "netdev@...r.kernel.org"
	<netdev@...r.kernel.org>, "Kubiak, Michal" <michal.kubiak@...el.com>,
	"Nguyen, Anthony L" <anthony.l.nguyen@...el.com>, "Karlsson, Magnus"
	<magnus.karlsson@...el.com>, "Kuruvinakunnel, George"
	<george.kuruvinakunnel@...el.com>, "Nagraj, Shravan"
	<shravan.nagraj@...el.com>, "Nagaraju, Shwetha" <shwetha.nagaraju@...el.com>,
	"Pandey, Atul" <atul.pandey@...el.com>
Subject: RE: [Intel-wired-lan] [PATCH v2 iwl-net 7/8] ice: add missing
 WRITE_ONCE when clearing ice_rx_ring::xdp_prog



>-----Original Message-----
>From: Intel-wired-lan <intel-wired-lan-bounces@...osl.org> On Behalf Of
>Fijalkowski, Maciej
>Sent: Wednesday, May 29, 2024 4:54 PM
>To: intel-wired-lan@...ts.osuosl.org
>Cc: Fijalkowski, Maciej <maciej.fijalkowski@...el.com>; Zaremba, Larysa
><larysa.zaremba@...el.com>; netdev@...r.kernel.org; Kubiak, Michal
><michal.kubiak@...el.com>; Nguyen, Anthony L
><anthony.l.nguyen@...el.com>; Karlsson, Magnus
><magnus.karlsson@...el.com>
>Subject: [Intel-wired-lan] [PATCH v2 iwl-net 7/8] ice: add missing WRITE_ONCE
>when clearing ice_rx_ring::xdp_prog
>
>It is read by data path and modified from process context on remote cpu so it is
>needed to use WRITE_ONCE to clear the pointer.
>
>Fixes: efc2214b6047 ("ice: Add support for XDP")
>Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@...el.com>
>---
> drivers/net/ethernet/intel/ice/ice_txrx.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>

Tested-by: Chandan Kumar Rout <chandanx.rout@...el.com> (A Contingent Worker at Intel)