netdev - Re: [PATCH net-next v2] net: stmmac: Caclucate CDC error only once

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Date:   Wed, 24 Nov 2021 04:20:09 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Kurt Kanzenbach <kurt@...utronix.de>
Cc:     davem@...emloft.net, kuba@...nel.org, peppe.cavallaro@...com,
        alexandre.torgue@...s.st.com, joabreu@...opsys.com,
        mcoquelin.stm32@...il.com, weifeng.voon@...el.com,
        boon.leong.ong@...el.com, vee.khee.wong@...ux.intel.com,
        tee.min.tan@...el.com, vee.khee.wong@...el.com,
        xiaoliang.yang_1@....com, netdev@...r.kernel.org,
        linux-stm32@...md-mailman.stormreply.com,
        linux-arm-kernel@...ts.infradead.org, b.spranger@...utronix.de,
        tglx@...utronix.de
Subject: Re: [PATCH net-next v2] net: stmmac: Caclucate CDC error only once

Hello:

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

On Mon, 22 Nov 2021 12:19:31 +0100 you wrote:
> The clock domain crossing error (CDC) is calculated at every fetch of Tx or Rx
> timestamps. It includes a division. Especially on arm32 based systems it is
> expensive. It also requires two conditionals in the hotpath.
> 
> Add a compensation value cache to struct plat_stmmacenet_data and subtract it
> unconditionally in the RX/TX functions which spares the conditionals.
> 
> [...]

Here is the summary with links:
  - [net-next,v2] net: stmmac: Caclucate CDC error only once
    https://git.kernel.org/netdev/net-next/c/c6d5f1933085

You are awesome, thank you!
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