netdev - Re: [PATCH net v2] net/tls: Use RCU API to access tls

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Date:   Thu, 11 Aug 2022 06:10:14 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Maxim Mikityanskiy <maximmi@...dia.com>
Cc:     davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
        pabeni@...hat.com, borisp@...dia.com, saeedm@...dia.com,
        tariqt@...dia.com, john.fastabend@...il.com, gal@...dia.com,
        netdev@...r.kernel.org, j.vosburgh@...il.com, vfalico@...il.com,
        andy@...yhouse.net, ayush.sawal@...lsio.com,
        vinay.yadav@...lsio.com, rohitm@...lsio.com, kuniyu@...zon.co.jp,
        dsahern@...nel.org
Subject: Re: [PATCH net v2] net/tls: Use RCU API to access tls_ctx->netdev

Hello:

This patch was applied to netdev/net.git (master)
by Jakub Kicinski <kuba@...nel.org>:

On Wed, 10 Aug 2022 11:16:02 +0300 you wrote:
> Currently, tls_device_down synchronizes with tls_device_resync_rx using
> RCU, however, the pointer to netdev is stored using WRITE_ONCE and
> loaded using READ_ONCE.
> 
> Although such approach is technically correct (rcu_dereference is
> essentially a READ_ONCE, and rcu_assign_pointer uses WRITE_ONCE to store
> NULL), using special RCU helpers for pointers is more valid, as it
> includes additional checks and might change the implementation
> transparently to the callers.
> 
> [...]

Here is the summary with links:
  - [net,v2] net/tls: Use RCU API to access tls_ctx->netdev
    https://git.kernel.org/netdev/net/c/94ce3b64c62d

You are awesome, thank you!
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