netdev - RE: [Intel-wired-lan] [PATCH iwl-next v4 1/6] ice: initialize ring

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Message-ID: <IA1PR11MB62419BAE964D5E5E84F7DE838BA8A@IA1PR11MB6241.namprd11.prod.outlook.com>
Date: Thu, 18 Dec 2025 10:50:11 +0000
From: "Rinitha, SX" <sx.rinitha@...el.com>
To: "Keller, Jacob E" <jacob.e.keller@...el.com>, "Loktionov, Aleksandr"
	<aleksandr.loktionov@...el.com>, "Lobakin, Aleksander"
	<aleksander.lobakin@...el.com>, "Nguyen, Anthony L"
	<anthony.l.nguyen@...el.com>, "Kitszel, Przemyslaw"
	<przemyslaw.kitszel@...el.com>
CC: Simon Horman <horms@...nel.org>, "intel-wired-lan@...ts.osuosl.org"
	<intel-wired-lan@...ts.osuosl.org>, "netdev@...r.kernel.org"
	<netdev@...r.kernel.org>, "Keller, Jacob E" <jacob.e.keller@...el.com>,
	"Loktionov, Aleksandr" <aleksandr.loktionov@...el.com>
Subject: RE: [Intel-wired-lan] [PATCH iwl-next v4 1/6] ice: initialize
 ring_stats->syncp

> -----Original Message-----
> From: Intel-wired-lan <intel-wired-lan-bounces@...osl.org> On Behalf Of Jacob Keller
> Sent: 21 November 2025 01:51
> To: Loktionov, Aleksandr <aleksandr.loktionov@...el.com>; Lobakin, Aleksander <aleksander.lobakin@...el.com>; Nguyen, Anthony L <anthony.l.nguyen@...el.com>; Kitszel, Przemyslaw <przemyslaw.kitszel@...el.com>
> Cc: Simon Horman <horms@...nel.org>; intel-wired-lan@...ts.osuosl.org; netdev@...r.kernel.org; Keller, Jacob E <jacob.e.keller@...el.com>; Loktionov, Aleksandr <aleksandr.loktionov@...el.com>
> Subject: [Intel-wired-lan] [PATCH iwl-next v4 1/6] ice: initialize ring_stats->syncp
>
> The u64_stats_sync structure is empty on 64-bit systems. However, on 32-bit systems it contains a seqcount_t which needs to be initialized. While the memory is zero-initialized, a lack of u64_stats_init means that lockdep won't get initialized properly. Fix this by adding u64_stats_init() calls to the rings just after allocation.
>
> Fixes: 2b245cb29421 ("ice: Implement transmit and NAPI support")
> Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@...el.com>
> Signed-off-by: Jacob Keller <jacob.e.keller@...el.com>
> ---
> drivers/net/ethernet/intel/ice/ice_lib.c | 5 +++++
> 1 file changed, 5 insertions(+)
>

Tested-by: Rinitha S <sx.rinitha@...el.com> (A Contingent worker at Intel)