netdev - Re: [PATCH net-next 3/3] ipv6: mcast: annotate data-race around psf->sf_count[MCAST

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Message-ID: <1912b20a-1bb5-4aa7-a698-09c8efccdee4@kernel.org>
Date: Tue, 10 Dec 2024 20:55:28 -0700
From: David Ahern <dsahern@...nel.org>
To: Eric Dumazet <edumazet@...gle.com>, "David S . Miller"
 <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>,
 Paolo Abeni <pabeni@...hat.com>
Cc: netdev@...r.kernel.org, Simon Horman <horms@...nel.org>,
 eric.dumazet@...il.com
Subject: Re: [PATCH net-next 3/3] ipv6: mcast: annotate data-race around
 psf->sf_count[MCAST_XXX]

On 12/10/24 11:33 AM, Eric Dumazet wrote:
> psf->sf_count[MCAST_XXX] fields are read locklessly from
> ipv6_chk_mcast_addr() and igmp6_mcf_seq_show().
> 
> Add READ_ONCE() and WRITE_ONCE() annotations accordingly.
> 
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>
> ---
>  net/ipv6/mcast.c | 12 ++++++------
>  1 file changed, 6 insertions(+), 6 deletions(-)
> 

Reviewed-by: David Ahern <dsahern@...nel.org>