linux-kernel - Re: [PATCH] netfilter/nf_tables: silence a RCU-list warning

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Date:   Thu, 26 Mar 2020 14:46:28 +0100
From:   Pablo Neira Ayuso <pablo@...filter.org>
To:     Qian Cai <cai@....pw>
Cc:     kadlec@...filter.org, fw@...len.de, davem@...emloft.net,
        netfilter-devel@...r.kernel.org, coreteam@...filter.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] netfilter/nf_tables: silence a RCU-list warning

On Wed, Mar 25, 2020 at 10:31:42AM -0400, Qian Cai wrote:
> It is safe to traverse &net->nft.tables with &net->nft.commit_mutex
> held using list_for_each_entry_rcu(). Silence the PROVE_RCU_LIST false
> positive,
> 
> WARNING: suspicious RCU usage
> net/netfilter/nf_tables_api.c:523 RCU-list traversed in non-reader section!!

Applied, thanks.