netdev - Re: [PATCH net] net: fib_rules: annotate data-races around rule->[io]ifindex

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Message-ID: <20250206094042.23391-1-kuniyu@amazon.com>
Date: Thu, 6 Feb 2025 18:40:42 +0900
From: Kuniyuki Iwashima <kuniyu@...zon.com>
To: <edumazet@...gle.com>
CC: <davem@...emloft.net>, <dsahern@...nel.org>, <eric.dumazet@...il.com>,
	<horms@...nel.org>, <kuba@...nel.org>, <netdev@...r.kernel.org>,
	<pabeni@...hat.com>, Kuniyuki Iwashima <kuniyu@...zon.com>
Subject: Re: [PATCH net] net: fib_rules: annotate data-races around rule->[io]ifindex

From: Eric Dumazet <edumazet@...gle.com>
Date: Thu,  6 Feb 2025 08:30:51 +0000
> rule->iifindex and rule->oifindex can be read without holding RTNL.
> 
> Add READ_ONCE()/WRITE_ONCE() annotations where needed.
> 
> Fixes: 32affa5578f0 ("fib: rules: no longer hold RTNL in fib_nl_dumprule()")
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>

Reviewed-by: Kuniyuki Iwashima <kuniyu@...zon.com>